* [PATCH v8 00/53] Add DELETE_BUF ioctl
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Unlike when resolution change on keyframes, dynamic resolution change
on inter frames doesn't allow to do a stream off/on sequence because
it is need to keep all previous references alive to decode inter frames.
This constraint have two main problems:
- more memory consumption.
- more buffers in use.
To solve these issue this series introduce DELETE_BUFS ioctl and remove
the 32 buffers limit per queue.
VP9 conformance tests using fluster give a score of 210/305.
The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
but require to use postprocessor.
Kernel branch is available here:
https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
change is here:
https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
changes in version 8:
- Add V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS and new 'max_buffers' field in v4l2_create_buffers
structure to report the maximum number of buffers that a queue could allocate.
- Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS to indicate that a queue support
DELETE_BUFS ioctl.
- Make some test drivers use more than 32 buffers and DELETE_BUFS ioctl.
- Fix remarks done by Hans
- Move "media: core: Rework how create_buf index returned value is
computed" patch to the top of the serie.
changes in version 7:
- Use a bitmap to know which entries are valid in queue bufs array.
The number of buffers in the queue could must calculated from the
bitmap so num_buffers becomes useless. This led to add quite few
patches to remove it from all the drivers.
Note: despiste my attention I may have miss some calls to
num_buffers...
- Split patches to make them more readable.
- Run v4l2-compliance with additional delete-bufs tests.
- Run ./test-media -kmemleak vivid and no more failures.
Note: I had to remove USERPTR streaming test because they to much
frequentely hit get_framevec bug. It is not related to my series
since this happens all the time on master branch.
- Fix Hans remarks on v6
changes in version 6:
- Get a patch per driver to use vb2_get_buffer() instead of directly access
to queue buffers array.
- Add lock in vb2_core_delete_buf()
- Use vb2_buffer instead of index
- Fix various comments
- Change buffer index name to BUFFER_INDEX_MASK
- Stop spamming kernel log with unbalanced counters
changes in version 5:
- Rework offset cookie encoding pattern is n ow the first patch of the
serie.
- Use static array instead of allocated one for postprocessor buffers.
changes in version 4:
- Stop using Xarray, instead let queues decide about their own maximum
number of buffer and allocate bufs array given that value.
- Rework offset cookie encoding pattern.
- Change DELETE_BUF to DELETE_BUFS because it now usable for
range of buffer to be symetrical of CREATE_BUFS.
- Add fixes tags on couple of Verisilicon related patches.
- Be smarter in Verisilicon postprocessor buffers management.
- Rebase on top of v6.4
changes in version 3:
- Use Xarray API to store allocated video buffers.
- No module parameter to limit the number of buffer per queue.
- Use Xarray inside Verisilicon driver to store postprocessor buffers
and remove VB2_MAX_FRAME limit.
- Allow Versilicon driver to change of resolution while streaming
- Various fixes the Verisilicon VP9 code to improve fluster score.
changes in version 2:
- Use a dynamic array and not a list to keep trace of allocated buffers.
Not use IDR interface because it is marked as deprecated in kernel
documentation.
- Add a module parameter to limit the number of buffer per queue.
- Add DELETE_BUF ioctl and m2m helpers.
Regards,
Benjamin
Benjamin Gaignard (53):
media: videobuf2: Rework offset 'cookie' encoding pattern
media: videobuf2: Stop spamming kernel log with all queue counter
media: videobuf2: Use vb2_buffer instead of index
media: amphion: Use vb2_get_buffer() instead of directly access to
buffers array
media: mediatek: jpeg: Use vb2_get_buffer() instead of directly access
to buffers array
media: mediatek: vdec: Remove useless loop
media: sti: hva: Use vb2_get_buffer() instead of directly access to
buffers array
media: visl: Use vb2_get_buffer() instead of directly access to
buffers array
media: atomisp: Use vb2_get_buffer() instead of directly access to
buffers array
media: dvb-core: Use vb2_get_buffer() instead of directly access to
buffers array
media: videobuf2: Access vb2_queue bufs array through helper functions
media: videobuf2: Be more flexible on the number of queue stored
buffers
media: Report the maximum possible number of buffers for the queue
media: test-drivers: vivid: Increase max supported buffers for capture
queues
media: test-drivers: vicodec: Increase max supported capture queue
buffers
media: verisilicon: Refactor postprocessor to store more buffers
media: verisilicon: Store chroma and motion vectors offset
media: verisilicon: g2: Use common helpers to compute chroma and mv
offsets
media: verisilicon: vp9: Allow to change resolution while streaming
media: Remove duplicated index vs q->num_buffers check
media: core: Add helper to get queue number of buffers
media: dvb-core: Do not initialize twice queue num_buffer field
media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed field
media: video-i2c: Set min_buffers_needed to 2
media: pci: cx18: Set correct value to min_buffers_needed field
media: pci: dt3155: Remove useless check
media: pci: netup_unidvb: Remove useless number of buffers check
media: pci: tw68: Stop direct calls to queue num_buffers field
media: pci: tw686x: Set min_buffers_needed to 3
media: amphion: Stop direct calls to queue num_buffers field
media: coda: Stop direct calls to queue num_buffers field
media: mediatek: vcodec: Stop direct calls to queue num_buffers field
media: nxp: Stop direct calls to queue num_buffers field
media: renesas: Set min_buffers_needed to 16
media: ti: Use queue min_buffers_needed field to set the min number of
buffers
media: verisilicon: Stop direct calls to queue num_buffers field
media: test-drivers: Stop direct calls to queue num_buffers field
media: usb: airspy: Set min_buffers_needed to 8
media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
media: usb: hackrf: Set min_buffers_needed to 8
media: usb: usbtv: Set min_buffers_needed to 2
media: atomisp: Stop direct calls to queue num_buffers field
media: imx: Stop direct calls to queue num_buffers field
media: meson: vdec: Stop direct calls to queue num_buffers field
touchscreen: sur40: Stop direct calls to queue num_buffers field
sample: v4l: Stop direct calls to queue num_buffers field
media: cedrus: Stop direct calls to queue num_buffers field
media: core: Rework how create_buf index returned value is computed
media: core: Add bitmap manage bufs array entries
media: core: Free range of buffers
media: v4l2: Add DELETE_BUFS ioctl
media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
media: test-drivers: Use helper for DELETE_BUFS ioctl
.../userspace-api/media/v4l/user-func.rst | 1 +
.../media/v4l/vidioc-create-bufs.rst | 8 +-
.../media/v4l/vidioc-delete-bufs.rst | 80 +++
.../media/v4l/vidioc-reqbufs.rst | 2 +
drivers/input/touchscreen/sur40.c | 5 +-
.../media/common/videobuf2/videobuf2-core.c | 556 +++++++++++-------
.../media/common/videobuf2/videobuf2-v4l2.c | 121 +++-
drivers/media/dvb-core/dvb_vb2.c | 17 +-
drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +-
drivers/media/i2c/video-i2c.c | 5 +-
drivers/media/pci/cx18/cx18-streams.c | 13 +-
drivers/media/pci/dt3155/dt3155.c | 2 -
.../pci/netup_unidvb/netup_unidvb_core.c | 4 +-
drivers/media/pci/tw68/tw68-video.c | 6 +-
drivers/media/pci/tw686x/tw686x-video.c | 13 +-
drivers/media/platform/amphion/vpu_dbg.c | 30 +-
drivers/media/platform/amphion/vpu_v4l2.c | 4 +-
.../media/platform/chips-media/coda-common.c | 2 +-
.../platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +-
.../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 +-
.../mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
drivers/media/platform/nxp/imx7-media-csi.c | 7 +-
drivers/media/platform/renesas/rcar_drif.c | 8 +-
drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +-
.../media/platform/ti/am437x/am437x-vpfe.c | 7 +-
drivers/media/platform/ti/cal/cal-video.c | 5 +-
.../media/platform/ti/davinci/vpif_capture.c | 5 +-
.../media/platform/ti/davinci/vpif_display.c | 5 +-
drivers/media/platform/ti/omap/omap_vout.c | 5 +-
drivers/media/platform/verisilicon/hantro.h | 9 +-
.../media/platform/verisilicon/hantro_drv.c | 5 +-
.../media/platform/verisilicon/hantro_g2.c | 14 +
.../platform/verisilicon/hantro_g2_hevc_dec.c | 18 +-
.../platform/verisilicon/hantro_g2_vp9_dec.c | 28 +-
.../media/platform/verisilicon/hantro_hw.h | 7 +-
.../platform/verisilicon/hantro_postproc.c | 93 ++-
.../media/platform/verisilicon/hantro_v4l2.c | 27 +-
.../media/test-drivers/vicodec/vicodec-core.c | 3 +
drivers/media/test-drivers/vim2m.c | 2 +
.../media/test-drivers/vimc/vimc-capture.c | 2 +
drivers/media/test-drivers/visl/visl-dec.c | 32 +-
drivers/media/test-drivers/visl/visl-video.c | 2 +
drivers/media/test-drivers/vivid/vivid-core.c | 14 +
.../media/test-drivers/vivid/vivid-meta-cap.c | 3 -
.../media/test-drivers/vivid/vivid-meta-out.c | 5 +-
.../test-drivers/vivid/vivid-touch-cap.c | 5 +-
.../media/test-drivers/vivid/vivid-vbi-cap.c | 5 +-
.../media/test-drivers/vivid/vivid-vbi-out.c | 5 +-
.../media/test-drivers/vivid/vivid-vid-cap.c | 5 +-
.../media/test-drivers/vivid/vivid-vid-out.c | 5 +-
drivers/media/usb/airspy/airspy.c | 9 +-
drivers/media/usb/cx231xx/cx231xx-417.c | 4 +-
drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-
drivers/media/usb/hackrf/hackrf.c | 9 +-
drivers/media/usb/usbtv/usbtv-video.c | 3 +-
drivers/media/v4l2-core/v4l2-dev.c | 1 +
drivers/media/v4l2-core/v4l2-ioctl.c | 21 +-
drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +
.../staging/media/atomisp/pci/atomisp_ioctl.c | 4 +-
drivers/staging/media/imx/imx-media-capture.c | 7 +-
drivers/staging/media/meson/vdec/vdec.c | 13 +-
.../staging/media/sunxi/cedrus/cedrus_h264.c | 8 +-
.../staging/media/sunxi/cedrus/cedrus_h265.c | 9 +-
include/media/v4l2-ioctl.h | 4 +
include/media/v4l2-mem2mem.h | 12 +
include/media/videobuf2-core.h | 65 +-
include/media/videobuf2-v4l2.h | 13 +
include/uapi/linux/videodev2.h | 24 +-
samples/v4l/v4l2-pci-skeleton.c | 5 +-
69 files changed, 969 insertions(+), 502 deletions(-)
create mode 100644 Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
--
2.39.2
^ permalink raw reply [flat|nested] 190+ messages in thread
* [PATCH v8 00/53] Add DELETE_BUF ioctl
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Unlike when resolution change on keyframes, dynamic resolution change
on inter frames doesn't allow to do a stream off/on sequence because
it is need to keep all previous references alive to decode inter frames.
This constraint have two main problems:
- more memory consumption.
- more buffers in use.
To solve these issue this series introduce DELETE_BUFS ioctl and remove
the 32 buffers limit per queue.
VP9 conformance tests using fluster give a score of 210/305.
The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
but require to use postprocessor.
Kernel branch is available here:
https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
change is here:
https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
changes in version 8:
- Add V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS and new 'max_buffers' field in v4l2_create_buffers
structure to report the maximum number of buffers that a queue could allocate.
- Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS to indicate that a queue support
DELETE_BUFS ioctl.
- Make some test drivers use more than 32 buffers and DELETE_BUFS ioctl.
- Fix remarks done by Hans
- Move "media: core: Rework how create_buf index returned value is
computed" patch to the top of the serie.
changes in version 7:
- Use a bitmap to know which entries are valid in queue bufs array.
The number of buffers in the queue could must calculated from the
bitmap so num_buffers becomes useless. This led to add quite few
patches to remove it from all the drivers.
Note: despiste my attention I may have miss some calls to
num_buffers...
- Split patches to make them more readable.
- Run v4l2-compliance with additional delete-bufs tests.
- Run ./test-media -kmemleak vivid and no more failures.
Note: I had to remove USERPTR streaming test because they to much
frequentely hit get_framevec bug. It is not related to my series
since this happens all the time on master branch.
- Fix Hans remarks on v6
changes in version 6:
- Get a patch per driver to use vb2_get_buffer() instead of directly access
to queue buffers array.
- Add lock in vb2_core_delete_buf()
- Use vb2_buffer instead of index
- Fix various comments
- Change buffer index name to BUFFER_INDEX_MASK
- Stop spamming kernel log with unbalanced counters
changes in version 5:
- Rework offset cookie encoding pattern is n ow the first patch of the
serie.
- Use static array instead of allocated one for postprocessor buffers.
changes in version 4:
- Stop using Xarray, instead let queues decide about their own maximum
number of buffer and allocate bufs array given that value.
- Rework offset cookie encoding pattern.
- Change DELETE_BUF to DELETE_BUFS because it now usable for
range of buffer to be symetrical of CREATE_BUFS.
- Add fixes tags on couple of Verisilicon related patches.
- Be smarter in Verisilicon postprocessor buffers management.
- Rebase on top of v6.4
changes in version 3:
- Use Xarray API to store allocated video buffers.
- No module parameter to limit the number of buffer per queue.
- Use Xarray inside Verisilicon driver to store postprocessor buffers
and remove VB2_MAX_FRAME limit.
- Allow Versilicon driver to change of resolution while streaming
- Various fixes the Verisilicon VP9 code to improve fluster score.
changes in version 2:
- Use a dynamic array and not a list to keep trace of allocated buffers.
Not use IDR interface because it is marked as deprecated in kernel
documentation.
- Add a module parameter to limit the number of buffer per queue.
- Add DELETE_BUF ioctl and m2m helpers.
Regards,
Benjamin
Benjamin Gaignard (53):
media: videobuf2: Rework offset 'cookie' encoding pattern
media: videobuf2: Stop spamming kernel log with all queue counter
media: videobuf2: Use vb2_buffer instead of index
media: amphion: Use vb2_get_buffer() instead of directly access to
buffers array
media: mediatek: jpeg: Use vb2_get_buffer() instead of directly access
to buffers array
media: mediatek: vdec: Remove useless loop
media: sti: hva: Use vb2_get_buffer() instead of directly access to
buffers array
media: visl: Use vb2_get_buffer() instead of directly access to
buffers array
media: atomisp: Use vb2_get_buffer() instead of directly access to
buffers array
media: dvb-core: Use vb2_get_buffer() instead of directly access to
buffers array
media: videobuf2: Access vb2_queue bufs array through helper functions
media: videobuf2: Be more flexible on the number of queue stored
buffers
media: Report the maximum possible number of buffers for the queue
media: test-drivers: vivid: Increase max supported buffers for capture
queues
media: test-drivers: vicodec: Increase max supported capture queue
buffers
media: verisilicon: Refactor postprocessor to store more buffers
media: verisilicon: Store chroma and motion vectors offset
media: verisilicon: g2: Use common helpers to compute chroma and mv
offsets
media: verisilicon: vp9: Allow to change resolution while streaming
media: Remove duplicated index vs q->num_buffers check
media: core: Add helper to get queue number of buffers
media: dvb-core: Do not initialize twice queue num_buffer field
media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed field
media: video-i2c: Set min_buffers_needed to 2
media: pci: cx18: Set correct value to min_buffers_needed field
media: pci: dt3155: Remove useless check
media: pci: netup_unidvb: Remove useless number of buffers check
media: pci: tw68: Stop direct calls to queue num_buffers field
media: pci: tw686x: Set min_buffers_needed to 3
media: amphion: Stop direct calls to queue num_buffers field
media: coda: Stop direct calls to queue num_buffers field
media: mediatek: vcodec: Stop direct calls to queue num_buffers field
media: nxp: Stop direct calls to queue num_buffers field
media: renesas: Set min_buffers_needed to 16
media: ti: Use queue min_buffers_needed field to set the min number of
buffers
media: verisilicon: Stop direct calls to queue num_buffers field
media: test-drivers: Stop direct calls to queue num_buffers field
media: usb: airspy: Set min_buffers_needed to 8
media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
media: usb: hackrf: Set min_buffers_needed to 8
media: usb: usbtv: Set min_buffers_needed to 2
media: atomisp: Stop direct calls to queue num_buffers field
media: imx: Stop direct calls to queue num_buffers field
media: meson: vdec: Stop direct calls to queue num_buffers field
touchscreen: sur40: Stop direct calls to queue num_buffers field
sample: v4l: Stop direct calls to queue num_buffers field
media: cedrus: Stop direct calls to queue num_buffers field
media: core: Rework how create_buf index returned value is computed
media: core: Add bitmap manage bufs array entries
media: core: Free range of buffers
media: v4l2: Add DELETE_BUFS ioctl
media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
media: test-drivers: Use helper for DELETE_BUFS ioctl
.../userspace-api/media/v4l/user-func.rst | 1 +
.../media/v4l/vidioc-create-bufs.rst | 8 +-
.../media/v4l/vidioc-delete-bufs.rst | 80 +++
.../media/v4l/vidioc-reqbufs.rst | 2 +
drivers/input/touchscreen/sur40.c | 5 +-
.../media/common/videobuf2/videobuf2-core.c | 556 +++++++++++-------
.../media/common/videobuf2/videobuf2-v4l2.c | 121 +++-
drivers/media/dvb-core/dvb_vb2.c | 17 +-
drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +-
drivers/media/i2c/video-i2c.c | 5 +-
drivers/media/pci/cx18/cx18-streams.c | 13 +-
drivers/media/pci/dt3155/dt3155.c | 2 -
.../pci/netup_unidvb/netup_unidvb_core.c | 4 +-
drivers/media/pci/tw68/tw68-video.c | 6 +-
drivers/media/pci/tw686x/tw686x-video.c | 13 +-
drivers/media/platform/amphion/vpu_dbg.c | 30 +-
drivers/media/platform/amphion/vpu_v4l2.c | 4 +-
.../media/platform/chips-media/coda-common.c | 2 +-
.../platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +-
.../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 +-
.../mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
drivers/media/platform/nxp/imx7-media-csi.c | 7 +-
drivers/media/platform/renesas/rcar_drif.c | 8 +-
drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +-
.../media/platform/ti/am437x/am437x-vpfe.c | 7 +-
drivers/media/platform/ti/cal/cal-video.c | 5 +-
.../media/platform/ti/davinci/vpif_capture.c | 5 +-
.../media/platform/ti/davinci/vpif_display.c | 5 +-
drivers/media/platform/ti/omap/omap_vout.c | 5 +-
drivers/media/platform/verisilicon/hantro.h | 9 +-
.../media/platform/verisilicon/hantro_drv.c | 5 +-
.../media/platform/verisilicon/hantro_g2.c | 14 +
.../platform/verisilicon/hantro_g2_hevc_dec.c | 18 +-
.../platform/verisilicon/hantro_g2_vp9_dec.c | 28 +-
.../media/platform/verisilicon/hantro_hw.h | 7 +-
.../platform/verisilicon/hantro_postproc.c | 93 ++-
.../media/platform/verisilicon/hantro_v4l2.c | 27 +-
.../media/test-drivers/vicodec/vicodec-core.c | 3 +
drivers/media/test-drivers/vim2m.c | 2 +
.../media/test-drivers/vimc/vimc-capture.c | 2 +
drivers/media/test-drivers/visl/visl-dec.c | 32 +-
drivers/media/test-drivers/visl/visl-video.c | 2 +
drivers/media/test-drivers/vivid/vivid-core.c | 14 +
.../media/test-drivers/vivid/vivid-meta-cap.c | 3 -
.../media/test-drivers/vivid/vivid-meta-out.c | 5 +-
.../test-drivers/vivid/vivid-touch-cap.c | 5 +-
.../media/test-drivers/vivid/vivid-vbi-cap.c | 5 +-
.../media/test-drivers/vivid/vivid-vbi-out.c | 5 +-
.../media/test-drivers/vivid/vivid-vid-cap.c | 5 +-
.../media/test-drivers/vivid/vivid-vid-out.c | 5 +-
drivers/media/usb/airspy/airspy.c | 9 +-
drivers/media/usb/cx231xx/cx231xx-417.c | 4 +-
drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-
drivers/media/usb/hackrf/hackrf.c | 9 +-
drivers/media/usb/usbtv/usbtv-video.c | 3 +-
drivers/media/v4l2-core/v4l2-dev.c | 1 +
drivers/media/v4l2-core/v4l2-ioctl.c | 21 +-
drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +
.../staging/media/atomisp/pci/atomisp_ioctl.c | 4 +-
drivers/staging/media/imx/imx-media-capture.c | 7 +-
drivers/staging/media/meson/vdec/vdec.c | 13 +-
.../staging/media/sunxi/cedrus/cedrus_h264.c | 8 +-
.../staging/media/sunxi/cedrus/cedrus_h265.c | 9 +-
include/media/v4l2-ioctl.h | 4 +
include/media/v4l2-mem2mem.h | 12 +
include/media/videobuf2-core.h | 65 +-
include/media/videobuf2-v4l2.h | 13 +
include/uapi/linux/videodev2.h | 24 +-
samples/v4l/v4l2-pci-skeleton.c | 5 +-
69 files changed, 969 insertions(+), 502 deletions(-)
create mode 100644 Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply [flat|nested] 190+ messages in thread
* [PATCH v8 00/53] Add DELETE_BUF ioctl
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Unlike when resolution change on keyframes, dynamic resolution change
on inter frames doesn't allow to do a stream off/on sequence because
it is need to keep all previous references alive to decode inter frames.
This constraint have two main problems:
- more memory consumption.
- more buffers in use.
To solve these issue this series introduce DELETE_BUFS ioctl and remove
the 32 buffers limit per queue.
VP9 conformance tests using fluster give a score of 210/305.
The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
but require to use postprocessor.
Kernel branch is available here:
https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
change is here:
https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
changes in version 8:
- Add V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS and new 'max_buffers' field in v4l2_create_buffers
structure to report the maximum number of buffers that a queue could allocate.
- Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS to indicate that a queue support
DELETE_BUFS ioctl.
- Make some test drivers use more than 32 buffers and DELETE_BUFS ioctl.
- Fix remarks done by Hans
- Move "media: core: Rework how create_buf index returned value is
computed" patch to the top of the serie.
changes in version 7:
- Use a bitmap to know which entries are valid in queue bufs array.
The number of buffers in the queue could must calculated from the
bitmap so num_buffers becomes useless. This led to add quite few
patches to remove it from all the drivers.
Note: despiste my attention I may have miss some calls to
num_buffers...
- Split patches to make them more readable.
- Run v4l2-compliance with additional delete-bufs tests.
- Run ./test-media -kmemleak vivid and no more failures.
Note: I had to remove USERPTR streaming test because they to much
frequentely hit get_framevec bug. It is not related to my series
since this happens all the time on master branch.
- Fix Hans remarks on v6
changes in version 6:
- Get a patch per driver to use vb2_get_buffer() instead of directly access
to queue buffers array.
- Add lock in vb2_core_delete_buf()
- Use vb2_buffer instead of index
- Fix various comments
- Change buffer index name to BUFFER_INDEX_MASK
- Stop spamming kernel log with unbalanced counters
changes in version 5:
- Rework offset cookie encoding pattern is n ow the first patch of the
serie.
- Use static array instead of allocated one for postprocessor buffers.
changes in version 4:
- Stop using Xarray, instead let queues decide about their own maximum
number of buffer and allocate bufs array given that value.
- Rework offset cookie encoding pattern.
- Change DELETE_BUF to DELETE_BUFS because it now usable for
range of buffer to be symetrical of CREATE_BUFS.
- Add fixes tags on couple of Verisilicon related patches.
- Be smarter in Verisilicon postprocessor buffers management.
- Rebase on top of v6.4
changes in version 3:
- Use Xarray API to store allocated video buffers.
- No module parameter to limit the number of buffer per queue.
- Use Xarray inside Verisilicon driver to store postprocessor buffers
and remove VB2_MAX_FRAME limit.
- Allow Versilicon driver to change of resolution while streaming
- Various fixes the Verisilicon VP9 code to improve fluster score.
changes in version 2:
- Use a dynamic array and not a list to keep trace of allocated buffers.
Not use IDR interface because it is marked as deprecated in kernel
documentation.
- Add a module parameter to limit the number of buffer per queue.
- Add DELETE_BUF ioctl and m2m helpers.
Regards,
Benjamin
Benjamin Gaignard (53):
media: videobuf2: Rework offset 'cookie' encoding pattern
media: videobuf2: Stop spamming kernel log with all queue counter
media: videobuf2: Use vb2_buffer instead of index
media: amphion: Use vb2_get_buffer() instead of directly access to
buffers array
media: mediatek: jpeg: Use vb2_get_buffer() instead of directly access
to buffers array
media: mediatek: vdec: Remove useless loop
media: sti: hva: Use vb2_get_buffer() instead of directly access to
buffers array
media: visl: Use vb2_get_buffer() instead of directly access to
buffers array
media: atomisp: Use vb2_get_buffer() instead of directly access to
buffers array
media: dvb-core: Use vb2_get_buffer() instead of directly access to
buffers array
media: videobuf2: Access vb2_queue bufs array through helper functions
media: videobuf2: Be more flexible on the number of queue stored
buffers
media: Report the maximum possible number of buffers for the queue
media: test-drivers: vivid: Increase max supported buffers for capture
queues
media: test-drivers: vicodec: Increase max supported capture queue
buffers
media: verisilicon: Refactor postprocessor to store more buffers
media: verisilicon: Store chroma and motion vectors offset
media: verisilicon: g2: Use common helpers to compute chroma and mv
offsets
media: verisilicon: vp9: Allow to change resolution while streaming
media: Remove duplicated index vs q->num_buffers check
media: core: Add helper to get queue number of buffers
media: dvb-core: Do not initialize twice queue num_buffer field
media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed field
media: video-i2c: Set min_buffers_needed to 2
media: pci: cx18: Set correct value to min_buffers_needed field
media: pci: dt3155: Remove useless check
media: pci: netup_unidvb: Remove useless number of buffers check
media: pci: tw68: Stop direct calls to queue num_buffers field
media: pci: tw686x: Set min_buffers_needed to 3
media: amphion: Stop direct calls to queue num_buffers field
media: coda: Stop direct calls to queue num_buffers field
media: mediatek: vcodec: Stop direct calls to queue num_buffers field
media: nxp: Stop direct calls to queue num_buffers field
media: renesas: Set min_buffers_needed to 16
media: ti: Use queue min_buffers_needed field to set the min number of
buffers
media: verisilicon: Stop direct calls to queue num_buffers field
media: test-drivers: Stop direct calls to queue num_buffers field
media: usb: airspy: Set min_buffers_needed to 8
media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
media: usb: hackrf: Set min_buffers_needed to 8
media: usb: usbtv: Set min_buffers_needed to 2
media: atomisp: Stop direct calls to queue num_buffers field
media: imx: Stop direct calls to queue num_buffers field
media: meson: vdec: Stop direct calls to queue num_buffers field
touchscreen: sur40: Stop direct calls to queue num_buffers field
sample: v4l: Stop direct calls to queue num_buffers field
media: cedrus: Stop direct calls to queue num_buffers field
media: core: Rework how create_buf index returned value is computed
media: core: Add bitmap manage bufs array entries
media: core: Free range of buffers
media: v4l2: Add DELETE_BUFS ioctl
media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
media: test-drivers: Use helper for DELETE_BUFS ioctl
.../userspace-api/media/v4l/user-func.rst | 1 +
.../media/v4l/vidioc-create-bufs.rst | 8 +-
.../media/v4l/vidioc-delete-bufs.rst | 80 +++
.../media/v4l/vidioc-reqbufs.rst | 2 +
drivers/input/touchscreen/sur40.c | 5 +-
.../media/common/videobuf2/videobuf2-core.c | 556 +++++++++++-------
.../media/common/videobuf2/videobuf2-v4l2.c | 121 +++-
drivers/media/dvb-core/dvb_vb2.c | 17 +-
drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +-
drivers/media/i2c/video-i2c.c | 5 +-
drivers/media/pci/cx18/cx18-streams.c | 13 +-
drivers/media/pci/dt3155/dt3155.c | 2 -
.../pci/netup_unidvb/netup_unidvb_core.c | 4 +-
drivers/media/pci/tw68/tw68-video.c | 6 +-
drivers/media/pci/tw686x/tw686x-video.c | 13 +-
drivers/media/platform/amphion/vpu_dbg.c | 30 +-
drivers/media/platform/amphion/vpu_v4l2.c | 4 +-
.../media/platform/chips-media/coda-common.c | 2 +-
.../platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +-
.../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 +-
.../mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
drivers/media/platform/nxp/imx7-media-csi.c | 7 +-
drivers/media/platform/renesas/rcar_drif.c | 8 +-
drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +-
.../media/platform/ti/am437x/am437x-vpfe.c | 7 +-
drivers/media/platform/ti/cal/cal-video.c | 5 +-
.../media/platform/ti/davinci/vpif_capture.c | 5 +-
.../media/platform/ti/davinci/vpif_display.c | 5 +-
drivers/media/platform/ti/omap/omap_vout.c | 5 +-
drivers/media/platform/verisilicon/hantro.h | 9 +-
.../media/platform/verisilicon/hantro_drv.c | 5 +-
.../media/platform/verisilicon/hantro_g2.c | 14 +
.../platform/verisilicon/hantro_g2_hevc_dec.c | 18 +-
.../platform/verisilicon/hantro_g2_vp9_dec.c | 28 +-
.../media/platform/verisilicon/hantro_hw.h | 7 +-
.../platform/verisilicon/hantro_postproc.c | 93 ++-
.../media/platform/verisilicon/hantro_v4l2.c | 27 +-
.../media/test-drivers/vicodec/vicodec-core.c | 3 +
drivers/media/test-drivers/vim2m.c | 2 +
.../media/test-drivers/vimc/vimc-capture.c | 2 +
drivers/media/test-drivers/visl/visl-dec.c | 32 +-
drivers/media/test-drivers/visl/visl-video.c | 2 +
drivers/media/test-drivers/vivid/vivid-core.c | 14 +
.../media/test-drivers/vivid/vivid-meta-cap.c | 3 -
.../media/test-drivers/vivid/vivid-meta-out.c | 5 +-
.../test-drivers/vivid/vivid-touch-cap.c | 5 +-
.../media/test-drivers/vivid/vivid-vbi-cap.c | 5 +-
.../media/test-drivers/vivid/vivid-vbi-out.c | 5 +-
.../media/test-drivers/vivid/vivid-vid-cap.c | 5 +-
.../media/test-drivers/vivid/vivid-vid-out.c | 5 +-
drivers/media/usb/airspy/airspy.c | 9 +-
drivers/media/usb/cx231xx/cx231xx-417.c | 4 +-
drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-
drivers/media/usb/hackrf/hackrf.c | 9 +-
drivers/media/usb/usbtv/usbtv-video.c | 3 +-
drivers/media/v4l2-core/v4l2-dev.c | 1 +
drivers/media/v4l2-core/v4l2-ioctl.c | 21 +-
drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +
.../staging/media/atomisp/pci/atomisp_ioctl.c | 4 +-
drivers/staging/media/imx/imx-media-capture.c | 7 +-
drivers/staging/media/meson/vdec/vdec.c | 13 +-
.../staging/media/sunxi/cedrus/cedrus_h264.c | 8 +-
.../staging/media/sunxi/cedrus/cedrus_h265.c | 9 +-
include/media/v4l2-ioctl.h | 4 +
include/media/v4l2-mem2mem.h | 12 +
include/media/videobuf2-core.h | 65 +-
include/media/videobuf2-v4l2.h | 13 +
include/uapi/linux/videodev2.h | 24 +-
samples/v4l/v4l2-pci-skeleton.c | 5 +-
69 files changed, 969 insertions(+), 502 deletions(-)
create mode 100644 Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 190+ messages in thread
* [PATCH v8 01/53] media: videobuf2: Rework offset 'cookie' encoding pattern
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Change how offset 'cookie' field value is computed to make possible
to use more buffers (up to 0x7fff)
With this encoding pattern we know the maximum number that a queue
could store so we can check ing at queue init time.
It also make easier and faster to find buffer and plane from using
the offset field.
Change __find_plane_by_offset() prototype to return the video buffer
itself rather than it index.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 74 +++++++++----------
1 file changed, 35 insertions(+), 39 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index cf6727d9c81f..6eeddb3a01c7 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -31,6 +31,14 @@
#include <trace/events/vb2.h>
+#define PLANE_INDEX_SHIFT (PAGE_SHIFT + 3)
+#define PLANE_INDEX_MASK 0x7
+#define BUFFER_INDEX_MASK 0x7fff
+
+#if PAGE_SHIFT != 12
+#error Expected PAGE_SHIFT to be 12
+#endif
+
static int debug;
module_param(debug, int, 0644);
@@ -358,21 +366,23 @@ static void __setup_offsets(struct vb2_buffer *vb)
unsigned int plane;
unsigned long off = 0;
- if (vb->index) {
- struct vb2_buffer *prev = q->bufs[vb->index - 1];
- struct vb2_plane *p = &prev->planes[prev->num_planes - 1];
-
- off = PAGE_ALIGN(p->m.offset + p->length);
- }
+ /*
+ * Offsets cookies value have the following constraints:
+ * - a buffer could have up to 8 planes.
+ * - v4l2 mem2mem use bit 30 to distinguish between source and destination buffers.
+ * - must be page aligned
+ * That led to this bit mapping:
+ * |30 |29 15|14 12|11 0|
+ * |DST_QUEUE_OFF_BASE|buffer index|plane index| 0 |
+ * where there are 15 bits to store buffer index.
+ */
+ off = vb->index << PLANE_INDEX_SHIFT;
for (plane = 0; plane < vb->num_planes; ++plane) {
- vb->planes[plane].m.offset = off;
+ vb->planes[plane].m.offset = off + (plane << PAGE_SHIFT);
dprintk(q, 3, "buffer %d, plane %d offset 0x%08lx\n",
vb->index, plane, off);
-
- off += vb->planes[plane].length;
- off = PAGE_ALIGN(off);
}
}
@@ -2185,13 +2195,12 @@ int vb2_core_streamoff(struct vb2_queue *q, unsigned int type)
EXPORT_SYMBOL_GPL(vb2_core_streamoff);
/*
- * __find_plane_by_offset() - find plane associated with the given offset off
+ * __find_plane_by_offset() - find video buffer and plane associated with the given offset off
*/
static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
- unsigned int *_buffer, unsigned int *_plane)
+ struct vb2_buffer **vb, unsigned int *plane)
{
- struct vb2_buffer *vb;
- unsigned int buffer, plane;
+ unsigned int buffer;
/*
* Sanity checks to ensure the lock is held, MEMORY_MMAP is
@@ -2209,24 +2218,15 @@ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
return -EBUSY;
}
- /*
- * Go over all buffers and their planes, comparing the given offset
- * with an offset assigned to each plane. If a match is found,
- * return its buffer and plane numbers.
- */
- for (buffer = 0; buffer < q->num_buffers; ++buffer) {
- vb = q->bufs[buffer];
+ /* Get buffer and plane from the offset */
+ buffer = (off >> PLANE_INDEX_SHIFT) & BUFFER_INDEX_MASK;
+ *plane = (off >> PAGE_SHIFT) & PLANE_INDEX_MASK;
- for (plane = 0; plane < vb->num_planes; ++plane) {
- if (vb->planes[plane].m.offset == off) {
- *_buffer = buffer;
- *_plane = plane;
- return 0;
- }
- }
- }
+ if (buffer >= q->num_buffers || *plane >= q->bufs[buffer]->num_planes)
+ return -EINVAL;
- return -EINVAL;
+ *vb = q->bufs[buffer];
+ return 0;
}
int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
@@ -2306,7 +2306,7 @@ int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma)
{
unsigned long off = vma->vm_pgoff << PAGE_SHIFT;
struct vb2_buffer *vb;
- unsigned int buffer = 0, plane = 0;
+ unsigned int plane = 0;
int ret;
unsigned long length;
@@ -2335,12 +2335,10 @@ int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma)
* Find the plane corresponding to the offset passed by userspace. This
* will return an error if not MEMORY_MMAP or file I/O is in progress.
*/
- ret = __find_plane_by_offset(q, off, &buffer, &plane);
+ ret = __find_plane_by_offset(q, off, &vb, &plane);
if (ret)
goto unlock;
- vb = q->bufs[buffer];
-
/*
* MMAP requires page_aligned buffers.
* The buffer length was page_aligned at __vb2_buf_mem_alloc(),
@@ -2368,7 +2366,7 @@ int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma)
if (ret)
return ret;
- dprintk(q, 3, "buffer %d, plane %d successfully mapped\n", buffer, plane);
+ dprintk(q, 3, "buffer %u, plane %d successfully mapped\n", vb->index, plane);
return 0;
}
EXPORT_SYMBOL_GPL(vb2_mmap);
@@ -2382,7 +2380,7 @@ unsigned long vb2_get_unmapped_area(struct vb2_queue *q,
{
unsigned long off = pgoff << PAGE_SHIFT;
struct vb2_buffer *vb;
- unsigned int buffer, plane;
+ unsigned int plane;
void *vaddr;
int ret;
@@ -2392,12 +2390,10 @@ unsigned long vb2_get_unmapped_area(struct vb2_queue *q,
* Find the plane corresponding to the offset passed by userspace. This
* will return an error if not MEMORY_MMAP or file I/O is in progress.
*/
- ret = __find_plane_by_offset(q, off, &buffer, &plane);
+ ret = __find_plane_by_offset(q, off, &vb, &plane);
if (ret)
goto unlock;
- vb = q->bufs[buffer];
-
vaddr = vb2_plane_vaddr(vb, plane);
mutex_unlock(&q->mmap_lock);
return vaddr ? (unsigned long)vaddr : -EINVAL;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 01/53] media: videobuf2: Rework offset 'cookie' encoding pattern
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Change how offset 'cookie' field value is computed to make possible
to use more buffers (up to 0x7fff)
With this encoding pattern we know the maximum number that a queue
could store so we can check ing at queue init time.
It also make easier and faster to find buffer and plane from using
the offset field.
Change __find_plane_by_offset() prototype to return the video buffer
itself rather than it index.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 74 +++++++++----------
1 file changed, 35 insertions(+), 39 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index cf6727d9c81f..6eeddb3a01c7 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -31,6 +31,14 @@
#include <trace/events/vb2.h>
+#define PLANE_INDEX_SHIFT (PAGE_SHIFT + 3)
+#define PLANE_INDEX_MASK 0x7
+#define BUFFER_INDEX_MASK 0x7fff
+
+#if PAGE_SHIFT != 12
+#error Expected PAGE_SHIFT to be 12
+#endif
+
static int debug;
module_param(debug, int, 0644);
@@ -358,21 +366,23 @@ static void __setup_offsets(struct vb2_buffer *vb)
unsigned int plane;
unsigned long off = 0;
- if (vb->index) {
- struct vb2_buffer *prev = q->bufs[vb->index - 1];
- struct vb2_plane *p = &prev->planes[prev->num_planes - 1];
-
- off = PAGE_ALIGN(p->m.offset + p->length);
- }
+ /*
+ * Offsets cookies value have the following constraints:
+ * - a buffer could have up to 8 planes.
+ * - v4l2 mem2mem use bit 30 to distinguish between source and destination buffers.
+ * - must be page aligned
+ * That led to this bit mapping:
+ * |30 |29 15|14 12|11 0|
+ * |DST_QUEUE_OFF_BASE|buffer index|plane index| 0 |
+ * where there are 15 bits to store buffer index.
+ */
+ off = vb->index << PLANE_INDEX_SHIFT;
for (plane = 0; plane < vb->num_planes; ++plane) {
- vb->planes[plane].m.offset = off;
+ vb->planes[plane].m.offset = off + (plane << PAGE_SHIFT);
dprintk(q, 3, "buffer %d, plane %d offset 0x%08lx\n",
vb->index, plane, off);
-
- off += vb->planes[plane].length;
- off = PAGE_ALIGN(off);
}
}
@@ -2185,13 +2195,12 @@ int vb2_core_streamoff(struct vb2_queue *q, unsigned int type)
EXPORT_SYMBOL_GPL(vb2_core_streamoff);
/*
- * __find_plane_by_offset() - find plane associated with the given offset off
+ * __find_plane_by_offset() - find video buffer and plane associated with the given offset off
*/
static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
- unsigned int *_buffer, unsigned int *_plane)
+ struct vb2_buffer **vb, unsigned int *plane)
{
- struct vb2_buffer *vb;
- unsigned int buffer, plane;
+ unsigned int buffer;
/*
* Sanity checks to ensure the lock is held, MEMORY_MMAP is
@@ -2209,24 +2218,15 @@ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
return -EBUSY;
}
- /*
- * Go over all buffers and their planes, comparing the given offset
- * with an offset assigned to each plane. If a match is found,
- * return its buffer and plane numbers.
- */
- for (buffer = 0; buffer < q->num_buffers; ++buffer) {
- vb = q->bufs[buffer];
+ /* Get buffer and plane from the offset */
+ buffer = (off >> PLANE_INDEX_SHIFT) & BUFFER_INDEX_MASK;
+ *plane = (off >> PAGE_SHIFT) & PLANE_INDEX_MASK;
- for (plane = 0; plane < vb->num_planes; ++plane) {
- if (vb->planes[plane].m.offset == off) {
- *_buffer = buffer;
- *_plane = plane;
- return 0;
- }
- }
- }
+ if (buffer >= q->num_buffers || *plane >= q->bufs[buffer]->num_planes)
+ return -EINVAL;
- return -EINVAL;
+ *vb = q->bufs[buffer];
+ return 0;
}
int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
@@ -2306,7 +2306,7 @@ int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma)
{
unsigned long off = vma->vm_pgoff << PAGE_SHIFT;
struct vb2_buffer *vb;
- unsigned int buffer = 0, plane = 0;
+ unsigned int plane = 0;
int ret;
unsigned long length;
@@ -2335,12 +2335,10 @@ int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma)
* Find the plane corresponding to the offset passed by userspace. This
* will return an error if not MEMORY_MMAP or file I/O is in progress.
*/
- ret = __find_plane_by_offset(q, off, &buffer, &plane);
+ ret = __find_plane_by_offset(q, off, &vb, &plane);
if (ret)
goto unlock;
- vb = q->bufs[buffer];
-
/*
* MMAP requires page_aligned buffers.
* The buffer length was page_aligned at __vb2_buf_mem_alloc(),
@@ -2368,7 +2366,7 @@ int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma)
if (ret)
return ret;
- dprintk(q, 3, "buffer %d, plane %d successfully mapped\n", buffer, plane);
+ dprintk(q, 3, "buffer %u, plane %d successfully mapped\n", vb->index, plane);
return 0;
}
EXPORT_SYMBOL_GPL(vb2_mmap);
@@ -2382,7 +2380,7 @@ unsigned long vb2_get_unmapped_area(struct vb2_queue *q,
{
unsigned long off = pgoff << PAGE_SHIFT;
struct vb2_buffer *vb;
- unsigned int buffer, plane;
+ unsigned int plane;
void *vaddr;
int ret;
@@ -2392,12 +2390,10 @@ unsigned long vb2_get_unmapped_area(struct vb2_queue *q,
* Find the plane corresponding to the offset passed by userspace. This
* will return an error if not MEMORY_MMAP or file I/O is in progress.
*/
- ret = __find_plane_by_offset(q, off, &buffer, &plane);
+ ret = __find_plane_by_offset(q, off, &vb, &plane);
if (ret)
goto unlock;
- vb = q->bufs[buffer];
-
vaddr = vb2_plane_vaddr(vb, plane);
mutex_unlock(&q->mmap_lock);
return vaddr ? (unsigned long)vaddr : -EINVAL;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 01/53] media: videobuf2: Rework offset 'cookie' encoding pattern
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Change how offset 'cookie' field value is computed to make possible
to use more buffers (up to 0x7fff)
With this encoding pattern we know the maximum number that a queue
could store so we can check ing at queue init time.
It also make easier and faster to find buffer and plane from using
the offset field.
Change __find_plane_by_offset() prototype to return the video buffer
itself rather than it index.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 74 +++++++++----------
1 file changed, 35 insertions(+), 39 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index cf6727d9c81f..6eeddb3a01c7 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -31,6 +31,14 @@
#include <trace/events/vb2.h>
+#define PLANE_INDEX_SHIFT (PAGE_SHIFT + 3)
+#define PLANE_INDEX_MASK 0x7
+#define BUFFER_INDEX_MASK 0x7fff
+
+#if PAGE_SHIFT != 12
+#error Expected PAGE_SHIFT to be 12
+#endif
+
static int debug;
module_param(debug, int, 0644);
@@ -358,21 +366,23 @@ static void __setup_offsets(struct vb2_buffer *vb)
unsigned int plane;
unsigned long off = 0;
- if (vb->index) {
- struct vb2_buffer *prev = q->bufs[vb->index - 1];
- struct vb2_plane *p = &prev->planes[prev->num_planes - 1];
-
- off = PAGE_ALIGN(p->m.offset + p->length);
- }
+ /*
+ * Offsets cookies value have the following constraints:
+ * - a buffer could have up to 8 planes.
+ * - v4l2 mem2mem use bit 30 to distinguish between source and destination buffers.
+ * - must be page aligned
+ * That led to this bit mapping:
+ * |30 |29 15|14 12|11 0|
+ * |DST_QUEUE_OFF_BASE|buffer index|plane index| 0 |
+ * where there are 15 bits to store buffer index.
+ */
+ off = vb->index << PLANE_INDEX_SHIFT;
for (plane = 0; plane < vb->num_planes; ++plane) {
- vb->planes[plane].m.offset = off;
+ vb->planes[plane].m.offset = off + (plane << PAGE_SHIFT);
dprintk(q, 3, "buffer %d, plane %d offset 0x%08lx\n",
vb->index, plane, off);
-
- off += vb->planes[plane].length;
- off = PAGE_ALIGN(off);
}
}
@@ -2185,13 +2195,12 @@ int vb2_core_streamoff(struct vb2_queue *q, unsigned int type)
EXPORT_SYMBOL_GPL(vb2_core_streamoff);
/*
- * __find_plane_by_offset() - find plane associated with the given offset off
+ * __find_plane_by_offset() - find video buffer and plane associated with the given offset off
*/
static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
- unsigned int *_buffer, unsigned int *_plane)
+ struct vb2_buffer **vb, unsigned int *plane)
{
- struct vb2_buffer *vb;
- unsigned int buffer, plane;
+ unsigned int buffer;
/*
* Sanity checks to ensure the lock is held, MEMORY_MMAP is
@@ -2209,24 +2218,15 @@ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
return -EBUSY;
}
- /*
- * Go over all buffers and their planes, comparing the given offset
- * with an offset assigned to each plane. If a match is found,
- * return its buffer and plane numbers.
- */
- for (buffer = 0; buffer < q->num_buffers; ++buffer) {
- vb = q->bufs[buffer];
+ /* Get buffer and plane from the offset */
+ buffer = (off >> PLANE_INDEX_SHIFT) & BUFFER_INDEX_MASK;
+ *plane = (off >> PAGE_SHIFT) & PLANE_INDEX_MASK;
- for (plane = 0; plane < vb->num_planes; ++plane) {
- if (vb->planes[plane].m.offset == off) {
- *_buffer = buffer;
- *_plane = plane;
- return 0;
- }
- }
- }
+ if (buffer >= q->num_buffers || *plane >= q->bufs[buffer]->num_planes)
+ return -EINVAL;
- return -EINVAL;
+ *vb = q->bufs[buffer];
+ return 0;
}
int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
@@ -2306,7 +2306,7 @@ int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma)
{
unsigned long off = vma->vm_pgoff << PAGE_SHIFT;
struct vb2_buffer *vb;
- unsigned int buffer = 0, plane = 0;
+ unsigned int plane = 0;
int ret;
unsigned long length;
@@ -2335,12 +2335,10 @@ int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma)
* Find the plane corresponding to the offset passed by userspace. This
* will return an error if not MEMORY_MMAP or file I/O is in progress.
*/
- ret = __find_plane_by_offset(q, off, &buffer, &plane);
+ ret = __find_plane_by_offset(q, off, &vb, &plane);
if (ret)
goto unlock;
- vb = q->bufs[buffer];
-
/*
* MMAP requires page_aligned buffers.
* The buffer length was page_aligned at __vb2_buf_mem_alloc(),
@@ -2368,7 +2366,7 @@ int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma)
if (ret)
return ret;
- dprintk(q, 3, "buffer %d, plane %d successfully mapped\n", buffer, plane);
+ dprintk(q, 3, "buffer %u, plane %d successfully mapped\n", vb->index, plane);
return 0;
}
EXPORT_SYMBOL_GPL(vb2_mmap);
@@ -2382,7 +2380,7 @@ unsigned long vb2_get_unmapped_area(struct vb2_queue *q,
{
unsigned long off = pgoff << PAGE_SHIFT;
struct vb2_buffer *vb;
- unsigned int buffer, plane;
+ unsigned int plane;
void *vaddr;
int ret;
@@ -2392,12 +2390,10 @@ unsigned long vb2_get_unmapped_area(struct vb2_queue *q,
* Find the plane corresponding to the offset passed by userspace. This
* will return an error if not MEMORY_MMAP or file I/O is in progress.
*/
- ret = __find_plane_by_offset(q, off, &buffer, &plane);
+ ret = __find_plane_by_offset(q, off, &vb, &plane);
if (ret)
goto unlock;
- vb = q->bufs[buffer];
-
vaddr = vb2_plane_vaddr(vb, plane);
mutex_unlock(&q->mmap_lock);
return vaddr ? (unsigned long)vaddr : -EINVAL;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 02/53] media: videobuf2: Stop spamming kernel log with all queue counter
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Only report unbalanced queue counters do avoid spamming kernel log
with useless information.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 79 +++++++++++--------
1 file changed, 44 insertions(+), 35 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 6eeddb3a01c7..1c5c84095065 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -532,25 +532,26 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
#ifdef CONFIG_VIDEO_ADV_DEBUG
/*
- * Check that all the calls were balances during the life-time of this
- * queue. If not (or if the debug level is 1 or up), then dump the
- * counters to the kernel log.
+ * Check that all the calls were balanced during the life-time of this
+ * queue. If not then dump the counters to the kernel log.
*/
if (q->num_buffers) {
bool unbalanced = q->cnt_start_streaming != q->cnt_stop_streaming ||
q->cnt_prepare_streaming != q->cnt_unprepare_streaming ||
q->cnt_wait_prepare != q->cnt_wait_finish;
- if (unbalanced || debug) {
- pr_info("counters for queue %p:%s\n", q,
- unbalanced ? " UNBALANCED!" : "");
- pr_info(" setup: %u start_streaming: %u stop_streaming: %u\n",
- q->cnt_queue_setup, q->cnt_start_streaming,
- q->cnt_stop_streaming);
- pr_info(" prepare_streaming: %u unprepare_streaming: %u\n",
- q->cnt_prepare_streaming, q->cnt_unprepare_streaming);
- pr_info(" wait_prepare: %u wait_finish: %u\n",
- q->cnt_wait_prepare, q->cnt_wait_finish);
+ if (unbalanced) {
+ pr_info("unbalanced counters for queue %p:\n", q);
+ if (q->cnt_start_streaming != q->cnt_stop_streaming)
+ pr_info(" setup: %u start_streaming: %u stop_streaming: %u\n",
+ q->cnt_queue_setup, q->cnt_start_streaming,
+ q->cnt_stop_streaming);
+ if (q->cnt_prepare_streaming != q->cnt_unprepare_streaming)
+ pr_info(" prepare_streaming: %u unprepare_streaming: %u\n",
+ q->cnt_prepare_streaming, q->cnt_unprepare_streaming);
+ if (q->cnt_wait_prepare != q->cnt_wait_finish)
+ pr_info(" wait_prepare: %u wait_finish: %u\n",
+ q->cnt_wait_prepare, q->cnt_wait_finish);
}
q->cnt_queue_setup = 0;
q->cnt_wait_prepare = 0;
@@ -571,29 +572,37 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
vb->cnt_buf_prepare != vb->cnt_buf_finish ||
vb->cnt_buf_init != vb->cnt_buf_cleanup;
- if (unbalanced || debug) {
- pr_info(" counters for queue %p, buffer %d:%s\n",
- q, buffer, unbalanced ? " UNBALANCED!" : "");
- pr_info(" buf_init: %u buf_cleanup: %u buf_prepare: %u buf_finish: %u\n",
- vb->cnt_buf_init, vb->cnt_buf_cleanup,
- vb->cnt_buf_prepare, vb->cnt_buf_finish);
- pr_info(" buf_out_validate: %u buf_queue: %u buf_done: %u buf_request_complete: %u\n",
- vb->cnt_buf_out_validate, vb->cnt_buf_queue,
- vb->cnt_buf_done, vb->cnt_buf_request_complete);
- pr_info(" alloc: %u put: %u prepare: %u finish: %u mmap: %u\n",
- vb->cnt_mem_alloc, vb->cnt_mem_put,
- vb->cnt_mem_prepare, vb->cnt_mem_finish,
- vb->cnt_mem_mmap);
- pr_info(" get_userptr: %u put_userptr: %u\n",
- vb->cnt_mem_get_userptr, vb->cnt_mem_put_userptr);
- pr_info(" attach_dmabuf: %u detach_dmabuf: %u map_dmabuf: %u unmap_dmabuf: %u\n",
- vb->cnt_mem_attach_dmabuf, vb->cnt_mem_detach_dmabuf,
- vb->cnt_mem_map_dmabuf, vb->cnt_mem_unmap_dmabuf);
- pr_info(" get_dmabuf: %u num_users: %u vaddr: %u cookie: %u\n",
+ if (unbalanced) {
+ pr_info("unbalanced counters for queue %p, buffer %d:\n",
+ q, buffer);
+ if (vb->cnt_buf_init != vb->cnt_buf_cleanup)
+ pr_info(" buf_init: %u buf_cleanup: %u\n",
+ vb->cnt_buf_init, vb->cnt_buf_cleanup);
+ if (vb->cnt_buf_prepare != vb->cnt_buf_finish)
+ pr_info(" buf_prepare: %u buf_finish: %u\n",
+ vb->cnt_buf_prepare, vb->cnt_buf_finish);
+ if (vb->cnt_buf_queue != vb->cnt_buf_done)
+ pr_info(" buf_out_validate: %u buf_queue: %u buf_done: %u buf_request_complete: %u\n",
+ vb->cnt_buf_out_validate, vb->cnt_buf_queue,
+ vb->cnt_buf_done, vb->cnt_buf_request_complete);
+ if (vb->cnt_mem_alloc != vb->cnt_mem_put)
+ pr_info(" alloc: %u put: %u\n",
+ vb->cnt_mem_alloc, vb->cnt_mem_put);
+ if (vb->cnt_mem_prepare != vb->cnt_mem_finish)
+ pr_info(" prepare: %u finish: %u\n",
+ vb->cnt_mem_prepare, vb->cnt_mem_finish);
+ if (vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr)
+ pr_info(" get_userptr: %u put_userptr: %u\n",
+ vb->cnt_mem_get_userptr, vb->cnt_mem_put_userptr);
+ if (vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf)
+ pr_info(" attach_dmabuf: %u detach_dmabuf: %u\n",
+ vb->cnt_mem_attach_dmabuf, vb->cnt_mem_detach_dmabuf);
+ if (vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf)
+ pr_info(" map_dmabuf: %u unmap_dmabuf: %u\n",
+ vb->cnt_mem_map_dmabuf, vb->cnt_mem_unmap_dmabuf);
+ pr_info(" get_dmabuf: %u num_users: %u\n",
vb->cnt_mem_get_dmabuf,
- vb->cnt_mem_num_users,
- vb->cnt_mem_vaddr,
- vb->cnt_mem_cookie);
+ vb->cnt_mem_num_users);
}
}
#endif
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 02/53] media: videobuf2: Stop spamming kernel log with all queue counter
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Only report unbalanced queue counters do avoid spamming kernel log
with useless information.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 79 +++++++++++--------
1 file changed, 44 insertions(+), 35 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 6eeddb3a01c7..1c5c84095065 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -532,25 +532,26 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
#ifdef CONFIG_VIDEO_ADV_DEBUG
/*
- * Check that all the calls were balances during the life-time of this
- * queue. If not (or if the debug level is 1 or up), then dump the
- * counters to the kernel log.
+ * Check that all the calls were balanced during the life-time of this
+ * queue. If not then dump the counters to the kernel log.
*/
if (q->num_buffers) {
bool unbalanced = q->cnt_start_streaming != q->cnt_stop_streaming ||
q->cnt_prepare_streaming != q->cnt_unprepare_streaming ||
q->cnt_wait_prepare != q->cnt_wait_finish;
- if (unbalanced || debug) {
- pr_info("counters for queue %p:%s\n", q,
- unbalanced ? " UNBALANCED!" : "");
- pr_info(" setup: %u start_streaming: %u stop_streaming: %u\n",
- q->cnt_queue_setup, q->cnt_start_streaming,
- q->cnt_stop_streaming);
- pr_info(" prepare_streaming: %u unprepare_streaming: %u\n",
- q->cnt_prepare_streaming, q->cnt_unprepare_streaming);
- pr_info(" wait_prepare: %u wait_finish: %u\n",
- q->cnt_wait_prepare, q->cnt_wait_finish);
+ if (unbalanced) {
+ pr_info("unbalanced counters for queue %p:\n", q);
+ if (q->cnt_start_streaming != q->cnt_stop_streaming)
+ pr_info(" setup: %u start_streaming: %u stop_streaming: %u\n",
+ q->cnt_queue_setup, q->cnt_start_streaming,
+ q->cnt_stop_streaming);
+ if (q->cnt_prepare_streaming != q->cnt_unprepare_streaming)
+ pr_info(" prepare_streaming: %u unprepare_streaming: %u\n",
+ q->cnt_prepare_streaming, q->cnt_unprepare_streaming);
+ if (q->cnt_wait_prepare != q->cnt_wait_finish)
+ pr_info(" wait_prepare: %u wait_finish: %u\n",
+ q->cnt_wait_prepare, q->cnt_wait_finish);
}
q->cnt_queue_setup = 0;
q->cnt_wait_prepare = 0;
@@ -571,29 +572,37 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
vb->cnt_buf_prepare != vb->cnt_buf_finish ||
vb->cnt_buf_init != vb->cnt_buf_cleanup;
- if (unbalanced || debug) {
- pr_info(" counters for queue %p, buffer %d:%s\n",
- q, buffer, unbalanced ? " UNBALANCED!" : "");
- pr_info(" buf_init: %u buf_cleanup: %u buf_prepare: %u buf_finish: %u\n",
- vb->cnt_buf_init, vb->cnt_buf_cleanup,
- vb->cnt_buf_prepare, vb->cnt_buf_finish);
- pr_info(" buf_out_validate: %u buf_queue: %u buf_done: %u buf_request_complete: %u\n",
- vb->cnt_buf_out_validate, vb->cnt_buf_queue,
- vb->cnt_buf_done, vb->cnt_buf_request_complete);
- pr_info(" alloc: %u put: %u prepare: %u finish: %u mmap: %u\n",
- vb->cnt_mem_alloc, vb->cnt_mem_put,
- vb->cnt_mem_prepare, vb->cnt_mem_finish,
- vb->cnt_mem_mmap);
- pr_info(" get_userptr: %u put_userptr: %u\n",
- vb->cnt_mem_get_userptr, vb->cnt_mem_put_userptr);
- pr_info(" attach_dmabuf: %u detach_dmabuf: %u map_dmabuf: %u unmap_dmabuf: %u\n",
- vb->cnt_mem_attach_dmabuf, vb->cnt_mem_detach_dmabuf,
- vb->cnt_mem_map_dmabuf, vb->cnt_mem_unmap_dmabuf);
- pr_info(" get_dmabuf: %u num_users: %u vaddr: %u cookie: %u\n",
+ if (unbalanced) {
+ pr_info("unbalanced counters for queue %p, buffer %d:\n",
+ q, buffer);
+ if (vb->cnt_buf_init != vb->cnt_buf_cleanup)
+ pr_info(" buf_init: %u buf_cleanup: %u\n",
+ vb->cnt_buf_init, vb->cnt_buf_cleanup);
+ if (vb->cnt_buf_prepare != vb->cnt_buf_finish)
+ pr_info(" buf_prepare: %u buf_finish: %u\n",
+ vb->cnt_buf_prepare, vb->cnt_buf_finish);
+ if (vb->cnt_buf_queue != vb->cnt_buf_done)
+ pr_info(" buf_out_validate: %u buf_queue: %u buf_done: %u buf_request_complete: %u\n",
+ vb->cnt_buf_out_validate, vb->cnt_buf_queue,
+ vb->cnt_buf_done, vb->cnt_buf_request_complete);
+ if (vb->cnt_mem_alloc != vb->cnt_mem_put)
+ pr_info(" alloc: %u put: %u\n",
+ vb->cnt_mem_alloc, vb->cnt_mem_put);
+ if (vb->cnt_mem_prepare != vb->cnt_mem_finish)
+ pr_info(" prepare: %u finish: %u\n",
+ vb->cnt_mem_prepare, vb->cnt_mem_finish);
+ if (vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr)
+ pr_info(" get_userptr: %u put_userptr: %u\n",
+ vb->cnt_mem_get_userptr, vb->cnt_mem_put_userptr);
+ if (vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf)
+ pr_info(" attach_dmabuf: %u detach_dmabuf: %u\n",
+ vb->cnt_mem_attach_dmabuf, vb->cnt_mem_detach_dmabuf);
+ if (vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf)
+ pr_info(" map_dmabuf: %u unmap_dmabuf: %u\n",
+ vb->cnt_mem_map_dmabuf, vb->cnt_mem_unmap_dmabuf);
+ pr_info(" get_dmabuf: %u num_users: %u\n",
vb->cnt_mem_get_dmabuf,
- vb->cnt_mem_num_users,
- vb->cnt_mem_vaddr,
- vb->cnt_mem_cookie);
+ vb->cnt_mem_num_users);
}
}
#endif
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 02/53] media: videobuf2: Stop spamming kernel log with all queue counter
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Only report unbalanced queue counters do avoid spamming kernel log
with useless information.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 79 +++++++++++--------
1 file changed, 44 insertions(+), 35 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 6eeddb3a01c7..1c5c84095065 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -532,25 +532,26 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
#ifdef CONFIG_VIDEO_ADV_DEBUG
/*
- * Check that all the calls were balances during the life-time of this
- * queue. If not (or if the debug level is 1 or up), then dump the
- * counters to the kernel log.
+ * Check that all the calls were balanced during the life-time of this
+ * queue. If not then dump the counters to the kernel log.
*/
if (q->num_buffers) {
bool unbalanced = q->cnt_start_streaming != q->cnt_stop_streaming ||
q->cnt_prepare_streaming != q->cnt_unprepare_streaming ||
q->cnt_wait_prepare != q->cnt_wait_finish;
- if (unbalanced || debug) {
- pr_info("counters for queue %p:%s\n", q,
- unbalanced ? " UNBALANCED!" : "");
- pr_info(" setup: %u start_streaming: %u stop_streaming: %u\n",
- q->cnt_queue_setup, q->cnt_start_streaming,
- q->cnt_stop_streaming);
- pr_info(" prepare_streaming: %u unprepare_streaming: %u\n",
- q->cnt_prepare_streaming, q->cnt_unprepare_streaming);
- pr_info(" wait_prepare: %u wait_finish: %u\n",
- q->cnt_wait_prepare, q->cnt_wait_finish);
+ if (unbalanced) {
+ pr_info("unbalanced counters for queue %p:\n", q);
+ if (q->cnt_start_streaming != q->cnt_stop_streaming)
+ pr_info(" setup: %u start_streaming: %u stop_streaming: %u\n",
+ q->cnt_queue_setup, q->cnt_start_streaming,
+ q->cnt_stop_streaming);
+ if (q->cnt_prepare_streaming != q->cnt_unprepare_streaming)
+ pr_info(" prepare_streaming: %u unprepare_streaming: %u\n",
+ q->cnt_prepare_streaming, q->cnt_unprepare_streaming);
+ if (q->cnt_wait_prepare != q->cnt_wait_finish)
+ pr_info(" wait_prepare: %u wait_finish: %u\n",
+ q->cnt_wait_prepare, q->cnt_wait_finish);
}
q->cnt_queue_setup = 0;
q->cnt_wait_prepare = 0;
@@ -571,29 +572,37 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
vb->cnt_buf_prepare != vb->cnt_buf_finish ||
vb->cnt_buf_init != vb->cnt_buf_cleanup;
- if (unbalanced || debug) {
- pr_info(" counters for queue %p, buffer %d:%s\n",
- q, buffer, unbalanced ? " UNBALANCED!" : "");
- pr_info(" buf_init: %u buf_cleanup: %u buf_prepare: %u buf_finish: %u\n",
- vb->cnt_buf_init, vb->cnt_buf_cleanup,
- vb->cnt_buf_prepare, vb->cnt_buf_finish);
- pr_info(" buf_out_validate: %u buf_queue: %u buf_done: %u buf_request_complete: %u\n",
- vb->cnt_buf_out_validate, vb->cnt_buf_queue,
- vb->cnt_buf_done, vb->cnt_buf_request_complete);
- pr_info(" alloc: %u put: %u prepare: %u finish: %u mmap: %u\n",
- vb->cnt_mem_alloc, vb->cnt_mem_put,
- vb->cnt_mem_prepare, vb->cnt_mem_finish,
- vb->cnt_mem_mmap);
- pr_info(" get_userptr: %u put_userptr: %u\n",
- vb->cnt_mem_get_userptr, vb->cnt_mem_put_userptr);
- pr_info(" attach_dmabuf: %u detach_dmabuf: %u map_dmabuf: %u unmap_dmabuf: %u\n",
- vb->cnt_mem_attach_dmabuf, vb->cnt_mem_detach_dmabuf,
- vb->cnt_mem_map_dmabuf, vb->cnt_mem_unmap_dmabuf);
- pr_info(" get_dmabuf: %u num_users: %u vaddr: %u cookie: %u\n",
+ if (unbalanced) {
+ pr_info("unbalanced counters for queue %p, buffer %d:\n",
+ q, buffer);
+ if (vb->cnt_buf_init != vb->cnt_buf_cleanup)
+ pr_info(" buf_init: %u buf_cleanup: %u\n",
+ vb->cnt_buf_init, vb->cnt_buf_cleanup);
+ if (vb->cnt_buf_prepare != vb->cnt_buf_finish)
+ pr_info(" buf_prepare: %u buf_finish: %u\n",
+ vb->cnt_buf_prepare, vb->cnt_buf_finish);
+ if (vb->cnt_buf_queue != vb->cnt_buf_done)
+ pr_info(" buf_out_validate: %u buf_queue: %u buf_done: %u buf_request_complete: %u\n",
+ vb->cnt_buf_out_validate, vb->cnt_buf_queue,
+ vb->cnt_buf_done, vb->cnt_buf_request_complete);
+ if (vb->cnt_mem_alloc != vb->cnt_mem_put)
+ pr_info(" alloc: %u put: %u\n",
+ vb->cnt_mem_alloc, vb->cnt_mem_put);
+ if (vb->cnt_mem_prepare != vb->cnt_mem_finish)
+ pr_info(" prepare: %u finish: %u\n",
+ vb->cnt_mem_prepare, vb->cnt_mem_finish);
+ if (vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr)
+ pr_info(" get_userptr: %u put_userptr: %u\n",
+ vb->cnt_mem_get_userptr, vb->cnt_mem_put_userptr);
+ if (vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf)
+ pr_info(" attach_dmabuf: %u detach_dmabuf: %u\n",
+ vb->cnt_mem_attach_dmabuf, vb->cnt_mem_detach_dmabuf);
+ if (vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf)
+ pr_info(" map_dmabuf: %u unmap_dmabuf: %u\n",
+ vb->cnt_mem_map_dmabuf, vb->cnt_mem_unmap_dmabuf);
+ pr_info(" get_dmabuf: %u num_users: %u\n",
vb->cnt_mem_get_dmabuf,
- vb->cnt_mem_num_users,
- vb->cnt_mem_vaddr,
- vb->cnt_mem_cookie);
+ vb->cnt_mem_num_users);
}
}
#endif
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 03/53] media: videobuf2: Use vb2_buffer instead of index
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Directly use vb2_buffer pointer instead of index inside queue array.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 40 ++++++-------------
.../media/common/videobuf2/videobuf2-v4l2.c | 30 ++++++++++++--
drivers/media/dvb-core/dvb_vb2.c | 6 +--
include/media/videobuf2-core.h | 16 ++++----
4 files changed, 49 insertions(+), 43 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 1c5c84095065..b00e68fd747f 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -653,9 +653,9 @@ static bool __buffers_in_use(struct vb2_queue *q)
return false;
}
-void vb2_core_querybuf(struct vb2_queue *q, unsigned int index, void *pb)
+void vb2_core_querybuf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb)
{
- call_void_bufop(q, fill_user_buffer, q->bufs[index], pb);
+ call_void_bufop(q, fill_user_buffer, vb, pb);
}
EXPORT_SYMBOL_GPL(vb2_core_querybuf);
@@ -1489,9 +1489,6 @@ static void vb2_req_unprepare(struct media_request_object *obj)
WARN_ON(!vb->req_obj.req);
}
-int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
- struct media_request *req);
-
static void vb2_req_queue(struct media_request_object *obj)
{
struct vb2_buffer *vb = container_of(obj, struct vb2_buffer, req_obj);
@@ -1506,7 +1503,7 @@ static void vb2_req_queue(struct media_request_object *obj)
* set. We just ignore that, and expect this will be caught the
* next time vb2_req_prepare() is called.
*/
- err = vb2_core_qbuf(vb->vb2_queue, vb->index, NULL, NULL);
+ err = vb2_core_qbuf(vb->vb2_queue, vb, NULL, NULL);
WARN_ON_ONCE(err && err != -EIO);
mutex_unlock(vb->vb2_queue->lock);
}
@@ -1561,12 +1558,10 @@ unsigned int vb2_request_buffer_cnt(struct media_request *req)
}
EXPORT_SYMBOL_GPL(vb2_request_buffer_cnt);
-int vb2_core_prepare_buf(struct vb2_queue *q, unsigned int index, void *pb)
+int vb2_core_prepare_buf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb)
{
- struct vb2_buffer *vb;
int ret;
- vb = q->bufs[index];
if (vb->state != VB2_BUF_STATE_DEQUEUED) {
dprintk(q, 1, "invalid buffer state %s\n",
vb2_state_name(vb->state));
@@ -1653,10 +1648,9 @@ static int vb2_start_streaming(struct vb2_queue *q)
return ret;
}
-int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
+int vb2_core_qbuf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb,
struct media_request *req)
{
- struct vb2_buffer *vb;
enum vb2_buffer_state orig_state;
int ret;
@@ -1665,8 +1659,6 @@ int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
return -EIO;
}
- vb = q->bufs[index];
-
if (!req && vb->state != VB2_BUF_STATE_IN_REQUEST &&
q->requires_requests) {
dprintk(q, 1, "qbuf requires a request\n");
@@ -2239,9 +2231,8 @@ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
}
int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
- unsigned int index, unsigned int plane, unsigned int flags)
+ struct vb2_buffer *vb, unsigned int plane, unsigned int flags)
{
- struct vb2_buffer *vb = NULL;
struct vb2_plane *vb_plane;
int ret;
struct dma_buf *dbuf;
@@ -2266,13 +2257,6 @@ int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
return -EINVAL;
}
- if (index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
- return -EINVAL;
- }
-
- vb = q->bufs[index];
-
if (plane >= vb->num_planes) {
dprintk(q, 1, "buffer plane out of range\n");
return -EINVAL;
@@ -2291,20 +2275,20 @@ int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
flags & O_ACCMODE);
if (IS_ERR_OR_NULL(dbuf)) {
dprintk(q, 1, "failed to export buffer %d, plane %d\n",
- index, plane);
+ vb->index, plane);
return -EINVAL;
}
ret = dma_buf_fd(dbuf, flags & ~O_ACCMODE);
if (ret < 0) {
dprintk(q, 3, "buffer %d, plane %d failed to export (%d)\n",
- index, plane, ret);
+ vb->index, plane, ret);
dma_buf_put(dbuf);
return ret;
}
dprintk(q, 3, "buffer %d, plane %d exported as %d descriptor\n",
- index, plane, ret);
+ vb->index, plane, ret);
*fd = ret;
return 0;
@@ -2709,7 +2693,7 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
* Queue all buffers.
*/
for (i = 0; i < q->num_buffers; i++) {
- ret = vb2_core_qbuf(q, i, NULL, NULL);
+ ret = vb2_core_qbuf(q, q->bufs[i], NULL, NULL);
if (ret)
goto err_reqbufs;
fileio->bufs[i].queued = 1;
@@ -2894,7 +2878,7 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
if (copy_timestamp)
b->timestamp = ktime_get_ns();
- ret = vb2_core_qbuf(q, index, NULL, NULL);
+ ret = vb2_core_qbuf(q, b, NULL, NULL);
dprintk(q, 5, "vb2_dbuf result: %d\n", ret);
if (ret)
return ret;
@@ -2997,7 +2981,7 @@ static int vb2_thread(void *data)
if (copy_timestamp)
vb->timestamp = ktime_get_ns();
if (!threadio->stop)
- ret = vb2_core_qbuf(q, vb->index, NULL, NULL);
+ ret = vb2_core_qbuf(q, vb, NULL, NULL);
call_void_qop(q, wait_prepare, q);
if (ret || threadio->stop)
break;
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index c7a54d82a55e..697c8a9f98cd 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -667,7 +667,7 @@ int vb2_querybuf(struct vb2_queue *q, struct v4l2_buffer *b)
vb = q->bufs[b->index];
ret = __verify_planes_array(vb, b);
if (!ret)
- vb2_core_querybuf(q, b->index, b);
+ vb2_core_querybuf(q, vb, b);
return ret;
}
EXPORT_SYMBOL(vb2_querybuf);
@@ -723,6 +723,7 @@ EXPORT_SYMBOL_GPL(vb2_reqbufs);
int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
struct v4l2_buffer *b)
{
+ struct vb2_buffer *vb;
int ret;
if (vb2_fileio_is_active(q)) {
@@ -733,9 +734,15 @@ int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
if (b->flags & V4L2_BUF_FLAG_REQUEST_FD)
return -EINVAL;
+ if (b->index >= q->num_buffers) {
+ dprintk(q, 1, "buffer index out of range\n");
+ return -EINVAL;
+ }
+ vb = q->bufs[b->index];
+
ret = vb2_queue_or_prepare_buf(q, mdev, b, true, NULL);
- return ret ? ret : vb2_core_prepare_buf(q, b->index, b);
+ return ret ? ret : vb2_core_prepare_buf(q, vb, b);
}
EXPORT_SYMBOL_GPL(vb2_prepare_buf);
@@ -803,6 +810,7 @@ int vb2_qbuf(struct vb2_queue *q, struct media_device *mdev,
struct v4l2_buffer *b)
{
struct media_request *req = NULL;
+ struct vb2_buffer *vb;
int ret;
if (vb2_fileio_is_active(q)) {
@@ -810,10 +818,16 @@ int vb2_qbuf(struct vb2_queue *q, struct media_device *mdev,
return -EBUSY;
}
+ if (b->index >= q->num_buffers) {
+ dprintk(q, 1, "buffer index out of range\n");
+ return -EINVAL;
+ }
+ vb = q->bufs[b->index];
+
ret = vb2_queue_or_prepare_buf(q, mdev, b, false, &req);
if (ret)
return ret;
- ret = vb2_core_qbuf(q, b->index, b, req);
+ ret = vb2_core_qbuf(q, vb, b, req);
if (req)
media_request_put(req);
return ret;
@@ -873,7 +887,15 @@ EXPORT_SYMBOL_GPL(vb2_streamoff);
int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb)
{
- return vb2_core_expbuf(q, &eb->fd, eb->type, eb->index,
+ struct vb2_buffer *vb;
+
+ if (eb->index >= q->num_buffers) {
+ dprintk(q, 1, "buffer index out of range\n");
+ return -EINVAL;
+ }
+ vb = q->bufs[eb->index];
+
+ return vb2_core_expbuf(q, &eb->fd, eb->type, vb,
eb->plane, eb->flags);
}
EXPORT_SYMBOL_GPL(vb2_expbuf);
diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c
index 909df82fed33..b322ef179f05 100644
--- a/drivers/media/dvb-core/dvb_vb2.c
+++ b/drivers/media/dvb-core/dvb_vb2.c
@@ -360,7 +360,7 @@ int dvb_vb2_querybuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
dprintk(1, "[%s] buffer index out of range\n", ctx->name);
return -EINVAL;
}
- vb2_core_querybuf(&ctx->vb_q, b->index, b);
+ vb2_core_querybuf(&ctx->vb_q, q->bufs[b->index], b);
dprintk(3, "[%s] index=%d\n", ctx->name, b->index);
return 0;
}
@@ -370,7 +370,7 @@ int dvb_vb2_expbuf(struct dvb_vb2_ctx *ctx, struct dmx_exportbuffer *exp)
struct vb2_queue *q = &ctx->vb_q;
int ret;
- ret = vb2_core_expbuf(&ctx->vb_q, &exp->fd, q->type, exp->index,
+ ret = vb2_core_expbuf(&ctx->vb_q, &exp->fd, q->type, q->bufs[exp->index],
0, exp->flags);
if (ret) {
dprintk(1, "[%s] index=%d errno=%d\n", ctx->name,
@@ -391,7 +391,7 @@ int dvb_vb2_qbuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
dprintk(1, "[%s] buffer index out of range\n", ctx->name);
return -EINVAL;
}
- ret = vb2_core_qbuf(&ctx->vb_q, b->index, b, NULL);
+ ret = vb2_core_qbuf(&ctx->vb_q, q->bufs[b->index], b, NULL);
if (ret) {
dprintk(1, "[%s] index=%d errno=%d\n", ctx->name,
b->index, ret);
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 4b6a9d2ea372..cd3ff1cd759d 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -747,7 +747,7 @@ int vb2_wait_for_all_buffers(struct vb2_queue *q);
/**
* vb2_core_querybuf() - query video buffer information.
* @q: pointer to &struct vb2_queue with videobuf2 queue.
- * @index: id number of the buffer.
+ * @vb: pointer to struct &vb2_buffer.
* @pb: buffer struct passed from userspace.
*
* Videobuf2 core helper to implement VIDIOC_QUERYBUF() operation. It is called
@@ -759,7 +759,7 @@ int vb2_wait_for_all_buffers(struct vb2_queue *q);
*
* Return: returns zero on success; an error code otherwise.
*/
-void vb2_core_querybuf(struct vb2_queue *q, unsigned int index, void *pb);
+void vb2_core_querybuf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb);
/**
* vb2_core_reqbufs() - Initiate streaming.
@@ -823,7 +823,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
* vb2_core_prepare_buf() - Pass ownership of a buffer from userspace
* to the kernel.
* @q: pointer to &struct vb2_queue with videobuf2 queue.
- * @index: id number of the buffer.
+ * @vb: pointer to struct &vb2_buffer.
* @pb: buffer structure passed from userspace to
* &v4l2_ioctl_ops->vidioc_prepare_buf handler in driver.
*
@@ -839,13 +839,13 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
*
* Return: returns zero on success; an error code otherwise.
*/
-int vb2_core_prepare_buf(struct vb2_queue *q, unsigned int index, void *pb);
+int vb2_core_prepare_buf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb);
/**
* vb2_core_qbuf() - Queue a buffer from userspace
*
* @q: pointer to &struct vb2_queue with videobuf2 queue.
- * @index: id number of the buffer
+ * @vb: pointer to struct &vb2_buffer.
* @pb: buffer structure passed from userspace to
* v4l2_ioctl_ops->vidioc_qbuf handler in driver
* @req: pointer to &struct media_request, may be NULL.
@@ -867,7 +867,7 @@ int vb2_core_prepare_buf(struct vb2_queue *q, unsigned int index, void *pb);
*
* Return: returns zero on success; an error code otherwise.
*/
-int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
+int vb2_core_qbuf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb,
struct media_request *req);
/**
@@ -931,7 +931,7 @@ int vb2_core_streamoff(struct vb2_queue *q, unsigned int type);
* @fd: pointer to the file descriptor associated with DMABUF
* (set by driver).
* @type: buffer type.
- * @index: id number of the buffer.
+ * @vb: pointer to struct &vb2_buffer.
* @plane: index of the plane to be exported, 0 for single plane queues
* @flags: file flags for newly created file, as defined at
* include/uapi/asm-generic/fcntl.h.
@@ -945,7 +945,7 @@ int vb2_core_streamoff(struct vb2_queue *q, unsigned int type);
* Return: returns zero on success; an error code otherwise.
*/
int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
- unsigned int index, unsigned int plane, unsigned int flags);
+ struct vb2_buffer *vb, unsigned int plane, unsigned int flags);
/**
* vb2_core_queue_init() - initialize a videobuf2 queue
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 03/53] media: videobuf2: Use vb2_buffer instead of index
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Directly use vb2_buffer pointer instead of index inside queue array.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 40 ++++++-------------
.../media/common/videobuf2/videobuf2-v4l2.c | 30 ++++++++++++--
drivers/media/dvb-core/dvb_vb2.c | 6 +--
include/media/videobuf2-core.h | 16 ++++----
4 files changed, 49 insertions(+), 43 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 1c5c84095065..b00e68fd747f 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -653,9 +653,9 @@ static bool __buffers_in_use(struct vb2_queue *q)
return false;
}
-void vb2_core_querybuf(struct vb2_queue *q, unsigned int index, void *pb)
+void vb2_core_querybuf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb)
{
- call_void_bufop(q, fill_user_buffer, q->bufs[index], pb);
+ call_void_bufop(q, fill_user_buffer, vb, pb);
}
EXPORT_SYMBOL_GPL(vb2_core_querybuf);
@@ -1489,9 +1489,6 @@ static void vb2_req_unprepare(struct media_request_object *obj)
WARN_ON(!vb->req_obj.req);
}
-int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
- struct media_request *req);
-
static void vb2_req_queue(struct media_request_object *obj)
{
struct vb2_buffer *vb = container_of(obj, struct vb2_buffer, req_obj);
@@ -1506,7 +1503,7 @@ static void vb2_req_queue(struct media_request_object *obj)
* set. We just ignore that, and expect this will be caught the
* next time vb2_req_prepare() is called.
*/
- err = vb2_core_qbuf(vb->vb2_queue, vb->index, NULL, NULL);
+ err = vb2_core_qbuf(vb->vb2_queue, vb, NULL, NULL);
WARN_ON_ONCE(err && err != -EIO);
mutex_unlock(vb->vb2_queue->lock);
}
@@ -1561,12 +1558,10 @@ unsigned int vb2_request_buffer_cnt(struct media_request *req)
}
EXPORT_SYMBOL_GPL(vb2_request_buffer_cnt);
-int vb2_core_prepare_buf(struct vb2_queue *q, unsigned int index, void *pb)
+int vb2_core_prepare_buf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb)
{
- struct vb2_buffer *vb;
int ret;
- vb = q->bufs[index];
if (vb->state != VB2_BUF_STATE_DEQUEUED) {
dprintk(q, 1, "invalid buffer state %s\n",
vb2_state_name(vb->state));
@@ -1653,10 +1648,9 @@ static int vb2_start_streaming(struct vb2_queue *q)
return ret;
}
-int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
+int vb2_core_qbuf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb,
struct media_request *req)
{
- struct vb2_buffer *vb;
enum vb2_buffer_state orig_state;
int ret;
@@ -1665,8 +1659,6 @@ int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
return -EIO;
}
- vb = q->bufs[index];
-
if (!req && vb->state != VB2_BUF_STATE_IN_REQUEST &&
q->requires_requests) {
dprintk(q, 1, "qbuf requires a request\n");
@@ -2239,9 +2231,8 @@ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
}
int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
- unsigned int index, unsigned int plane, unsigned int flags)
+ struct vb2_buffer *vb, unsigned int plane, unsigned int flags)
{
- struct vb2_buffer *vb = NULL;
struct vb2_plane *vb_plane;
int ret;
struct dma_buf *dbuf;
@@ -2266,13 +2257,6 @@ int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
return -EINVAL;
}
- if (index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
- return -EINVAL;
- }
-
- vb = q->bufs[index];
-
if (plane >= vb->num_planes) {
dprintk(q, 1, "buffer plane out of range\n");
return -EINVAL;
@@ -2291,20 +2275,20 @@ int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
flags & O_ACCMODE);
if (IS_ERR_OR_NULL(dbuf)) {
dprintk(q, 1, "failed to export buffer %d, plane %d\n",
- index, plane);
+ vb->index, plane);
return -EINVAL;
}
ret = dma_buf_fd(dbuf, flags & ~O_ACCMODE);
if (ret < 0) {
dprintk(q, 3, "buffer %d, plane %d failed to export (%d)\n",
- index, plane, ret);
+ vb->index, plane, ret);
dma_buf_put(dbuf);
return ret;
}
dprintk(q, 3, "buffer %d, plane %d exported as %d descriptor\n",
- index, plane, ret);
+ vb->index, plane, ret);
*fd = ret;
return 0;
@@ -2709,7 +2693,7 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
* Queue all buffers.
*/
for (i = 0; i < q->num_buffers; i++) {
- ret = vb2_core_qbuf(q, i, NULL, NULL);
+ ret = vb2_core_qbuf(q, q->bufs[i], NULL, NULL);
if (ret)
goto err_reqbufs;
fileio->bufs[i].queued = 1;
@@ -2894,7 +2878,7 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
if (copy_timestamp)
b->timestamp = ktime_get_ns();
- ret = vb2_core_qbuf(q, index, NULL, NULL);
+ ret = vb2_core_qbuf(q, b, NULL, NULL);
dprintk(q, 5, "vb2_dbuf result: %d\n", ret);
if (ret)
return ret;
@@ -2997,7 +2981,7 @@ static int vb2_thread(void *data)
if (copy_timestamp)
vb->timestamp = ktime_get_ns();
if (!threadio->stop)
- ret = vb2_core_qbuf(q, vb->index, NULL, NULL);
+ ret = vb2_core_qbuf(q, vb, NULL, NULL);
call_void_qop(q, wait_prepare, q);
if (ret || threadio->stop)
break;
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index c7a54d82a55e..697c8a9f98cd 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -667,7 +667,7 @@ int vb2_querybuf(struct vb2_queue *q, struct v4l2_buffer *b)
vb = q->bufs[b->index];
ret = __verify_planes_array(vb, b);
if (!ret)
- vb2_core_querybuf(q, b->index, b);
+ vb2_core_querybuf(q, vb, b);
return ret;
}
EXPORT_SYMBOL(vb2_querybuf);
@@ -723,6 +723,7 @@ EXPORT_SYMBOL_GPL(vb2_reqbufs);
int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
struct v4l2_buffer *b)
{
+ struct vb2_buffer *vb;
int ret;
if (vb2_fileio_is_active(q)) {
@@ -733,9 +734,15 @@ int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
if (b->flags & V4L2_BUF_FLAG_REQUEST_FD)
return -EINVAL;
+ if (b->index >= q->num_buffers) {
+ dprintk(q, 1, "buffer index out of range\n");
+ return -EINVAL;
+ }
+ vb = q->bufs[b->index];
+
ret = vb2_queue_or_prepare_buf(q, mdev, b, true, NULL);
- return ret ? ret : vb2_core_prepare_buf(q, b->index, b);
+ return ret ? ret : vb2_core_prepare_buf(q, vb, b);
}
EXPORT_SYMBOL_GPL(vb2_prepare_buf);
@@ -803,6 +810,7 @@ int vb2_qbuf(struct vb2_queue *q, struct media_device *mdev,
struct v4l2_buffer *b)
{
struct media_request *req = NULL;
+ struct vb2_buffer *vb;
int ret;
if (vb2_fileio_is_active(q)) {
@@ -810,10 +818,16 @@ int vb2_qbuf(struct vb2_queue *q, struct media_device *mdev,
return -EBUSY;
}
+ if (b->index >= q->num_buffers) {
+ dprintk(q, 1, "buffer index out of range\n");
+ return -EINVAL;
+ }
+ vb = q->bufs[b->index];
+
ret = vb2_queue_or_prepare_buf(q, mdev, b, false, &req);
if (ret)
return ret;
- ret = vb2_core_qbuf(q, b->index, b, req);
+ ret = vb2_core_qbuf(q, vb, b, req);
if (req)
media_request_put(req);
return ret;
@@ -873,7 +887,15 @@ EXPORT_SYMBOL_GPL(vb2_streamoff);
int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb)
{
- return vb2_core_expbuf(q, &eb->fd, eb->type, eb->index,
+ struct vb2_buffer *vb;
+
+ if (eb->index >= q->num_buffers) {
+ dprintk(q, 1, "buffer index out of range\n");
+ return -EINVAL;
+ }
+ vb = q->bufs[eb->index];
+
+ return vb2_core_expbuf(q, &eb->fd, eb->type, vb,
eb->plane, eb->flags);
}
EXPORT_SYMBOL_GPL(vb2_expbuf);
diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c
index 909df82fed33..b322ef179f05 100644
--- a/drivers/media/dvb-core/dvb_vb2.c
+++ b/drivers/media/dvb-core/dvb_vb2.c
@@ -360,7 +360,7 @@ int dvb_vb2_querybuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
dprintk(1, "[%s] buffer index out of range\n", ctx->name);
return -EINVAL;
}
- vb2_core_querybuf(&ctx->vb_q, b->index, b);
+ vb2_core_querybuf(&ctx->vb_q, q->bufs[b->index], b);
dprintk(3, "[%s] index=%d\n", ctx->name, b->index);
return 0;
}
@@ -370,7 +370,7 @@ int dvb_vb2_expbuf(struct dvb_vb2_ctx *ctx, struct dmx_exportbuffer *exp)
struct vb2_queue *q = &ctx->vb_q;
int ret;
- ret = vb2_core_expbuf(&ctx->vb_q, &exp->fd, q->type, exp->index,
+ ret = vb2_core_expbuf(&ctx->vb_q, &exp->fd, q->type, q->bufs[exp->index],
0, exp->flags);
if (ret) {
dprintk(1, "[%s] index=%d errno=%d\n", ctx->name,
@@ -391,7 +391,7 @@ int dvb_vb2_qbuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
dprintk(1, "[%s] buffer index out of range\n", ctx->name);
return -EINVAL;
}
- ret = vb2_core_qbuf(&ctx->vb_q, b->index, b, NULL);
+ ret = vb2_core_qbuf(&ctx->vb_q, q->bufs[b->index], b, NULL);
if (ret) {
dprintk(1, "[%s] index=%d errno=%d\n", ctx->name,
b->index, ret);
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 4b6a9d2ea372..cd3ff1cd759d 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -747,7 +747,7 @@ int vb2_wait_for_all_buffers(struct vb2_queue *q);
/**
* vb2_core_querybuf() - query video buffer information.
* @q: pointer to &struct vb2_queue with videobuf2 queue.
- * @index: id number of the buffer.
+ * @vb: pointer to struct &vb2_buffer.
* @pb: buffer struct passed from userspace.
*
* Videobuf2 core helper to implement VIDIOC_QUERYBUF() operation. It is called
@@ -759,7 +759,7 @@ int vb2_wait_for_all_buffers(struct vb2_queue *q);
*
* Return: returns zero on success; an error code otherwise.
*/
-void vb2_core_querybuf(struct vb2_queue *q, unsigned int index, void *pb);
+void vb2_core_querybuf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb);
/**
* vb2_core_reqbufs() - Initiate streaming.
@@ -823,7 +823,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
* vb2_core_prepare_buf() - Pass ownership of a buffer from userspace
* to the kernel.
* @q: pointer to &struct vb2_queue with videobuf2 queue.
- * @index: id number of the buffer.
+ * @vb: pointer to struct &vb2_buffer.
* @pb: buffer structure passed from userspace to
* &v4l2_ioctl_ops->vidioc_prepare_buf handler in driver.
*
@@ -839,13 +839,13 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
*
* Return: returns zero on success; an error code otherwise.
*/
-int vb2_core_prepare_buf(struct vb2_queue *q, unsigned int index, void *pb);
+int vb2_core_prepare_buf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb);
/**
* vb2_core_qbuf() - Queue a buffer from userspace
*
* @q: pointer to &struct vb2_queue with videobuf2 queue.
- * @index: id number of the buffer
+ * @vb: pointer to struct &vb2_buffer.
* @pb: buffer structure passed from userspace to
* v4l2_ioctl_ops->vidioc_qbuf handler in driver
* @req: pointer to &struct media_request, may be NULL.
@@ -867,7 +867,7 @@ int vb2_core_prepare_buf(struct vb2_queue *q, unsigned int index, void *pb);
*
* Return: returns zero on success; an error code otherwise.
*/
-int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
+int vb2_core_qbuf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb,
struct media_request *req);
/**
@@ -931,7 +931,7 @@ int vb2_core_streamoff(struct vb2_queue *q, unsigned int type);
* @fd: pointer to the file descriptor associated with DMABUF
* (set by driver).
* @type: buffer type.
- * @index: id number of the buffer.
+ * @vb: pointer to struct &vb2_buffer.
* @plane: index of the plane to be exported, 0 for single plane queues
* @flags: file flags for newly created file, as defined at
* include/uapi/asm-generic/fcntl.h.
@@ -945,7 +945,7 @@ int vb2_core_streamoff(struct vb2_queue *q, unsigned int type);
* Return: returns zero on success; an error code otherwise.
*/
int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
- unsigned int index, unsigned int plane, unsigned int flags);
+ struct vb2_buffer *vb, unsigned int plane, unsigned int flags);
/**
* vb2_core_queue_init() - initialize a videobuf2 queue
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
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^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 03/53] media: videobuf2: Use vb2_buffer instead of index
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Directly use vb2_buffer pointer instead of index inside queue array.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 40 ++++++-------------
.../media/common/videobuf2/videobuf2-v4l2.c | 30 ++++++++++++--
drivers/media/dvb-core/dvb_vb2.c | 6 +--
include/media/videobuf2-core.h | 16 ++++----
4 files changed, 49 insertions(+), 43 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 1c5c84095065..b00e68fd747f 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -653,9 +653,9 @@ static bool __buffers_in_use(struct vb2_queue *q)
return false;
}
-void vb2_core_querybuf(struct vb2_queue *q, unsigned int index, void *pb)
+void vb2_core_querybuf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb)
{
- call_void_bufop(q, fill_user_buffer, q->bufs[index], pb);
+ call_void_bufop(q, fill_user_buffer, vb, pb);
}
EXPORT_SYMBOL_GPL(vb2_core_querybuf);
@@ -1489,9 +1489,6 @@ static void vb2_req_unprepare(struct media_request_object *obj)
WARN_ON(!vb->req_obj.req);
}
-int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
- struct media_request *req);
-
static void vb2_req_queue(struct media_request_object *obj)
{
struct vb2_buffer *vb = container_of(obj, struct vb2_buffer, req_obj);
@@ -1506,7 +1503,7 @@ static void vb2_req_queue(struct media_request_object *obj)
* set. We just ignore that, and expect this will be caught the
* next time vb2_req_prepare() is called.
*/
- err = vb2_core_qbuf(vb->vb2_queue, vb->index, NULL, NULL);
+ err = vb2_core_qbuf(vb->vb2_queue, vb, NULL, NULL);
WARN_ON_ONCE(err && err != -EIO);
mutex_unlock(vb->vb2_queue->lock);
}
@@ -1561,12 +1558,10 @@ unsigned int vb2_request_buffer_cnt(struct media_request *req)
}
EXPORT_SYMBOL_GPL(vb2_request_buffer_cnt);
-int vb2_core_prepare_buf(struct vb2_queue *q, unsigned int index, void *pb)
+int vb2_core_prepare_buf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb)
{
- struct vb2_buffer *vb;
int ret;
- vb = q->bufs[index];
if (vb->state != VB2_BUF_STATE_DEQUEUED) {
dprintk(q, 1, "invalid buffer state %s\n",
vb2_state_name(vb->state));
@@ -1653,10 +1648,9 @@ static int vb2_start_streaming(struct vb2_queue *q)
return ret;
}
-int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
+int vb2_core_qbuf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb,
struct media_request *req)
{
- struct vb2_buffer *vb;
enum vb2_buffer_state orig_state;
int ret;
@@ -1665,8 +1659,6 @@ int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
return -EIO;
}
- vb = q->bufs[index];
-
if (!req && vb->state != VB2_BUF_STATE_IN_REQUEST &&
q->requires_requests) {
dprintk(q, 1, "qbuf requires a request\n");
@@ -2239,9 +2231,8 @@ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
}
int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
- unsigned int index, unsigned int plane, unsigned int flags)
+ struct vb2_buffer *vb, unsigned int plane, unsigned int flags)
{
- struct vb2_buffer *vb = NULL;
struct vb2_plane *vb_plane;
int ret;
struct dma_buf *dbuf;
@@ -2266,13 +2257,6 @@ int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
return -EINVAL;
}
- if (index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
- return -EINVAL;
- }
-
- vb = q->bufs[index];
-
if (plane >= vb->num_planes) {
dprintk(q, 1, "buffer plane out of range\n");
return -EINVAL;
@@ -2291,20 +2275,20 @@ int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
flags & O_ACCMODE);
if (IS_ERR_OR_NULL(dbuf)) {
dprintk(q, 1, "failed to export buffer %d, plane %d\n",
- index, plane);
+ vb->index, plane);
return -EINVAL;
}
ret = dma_buf_fd(dbuf, flags & ~O_ACCMODE);
if (ret < 0) {
dprintk(q, 3, "buffer %d, plane %d failed to export (%d)\n",
- index, plane, ret);
+ vb->index, plane, ret);
dma_buf_put(dbuf);
return ret;
}
dprintk(q, 3, "buffer %d, plane %d exported as %d descriptor\n",
- index, plane, ret);
+ vb->index, plane, ret);
*fd = ret;
return 0;
@@ -2709,7 +2693,7 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
* Queue all buffers.
*/
for (i = 0; i < q->num_buffers; i++) {
- ret = vb2_core_qbuf(q, i, NULL, NULL);
+ ret = vb2_core_qbuf(q, q->bufs[i], NULL, NULL);
if (ret)
goto err_reqbufs;
fileio->bufs[i].queued = 1;
@@ -2894,7 +2878,7 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
if (copy_timestamp)
b->timestamp = ktime_get_ns();
- ret = vb2_core_qbuf(q, index, NULL, NULL);
+ ret = vb2_core_qbuf(q, b, NULL, NULL);
dprintk(q, 5, "vb2_dbuf result: %d\n", ret);
if (ret)
return ret;
@@ -2997,7 +2981,7 @@ static int vb2_thread(void *data)
if (copy_timestamp)
vb->timestamp = ktime_get_ns();
if (!threadio->stop)
- ret = vb2_core_qbuf(q, vb->index, NULL, NULL);
+ ret = vb2_core_qbuf(q, vb, NULL, NULL);
call_void_qop(q, wait_prepare, q);
if (ret || threadio->stop)
break;
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index c7a54d82a55e..697c8a9f98cd 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -667,7 +667,7 @@ int vb2_querybuf(struct vb2_queue *q, struct v4l2_buffer *b)
vb = q->bufs[b->index];
ret = __verify_planes_array(vb, b);
if (!ret)
- vb2_core_querybuf(q, b->index, b);
+ vb2_core_querybuf(q, vb, b);
return ret;
}
EXPORT_SYMBOL(vb2_querybuf);
@@ -723,6 +723,7 @@ EXPORT_SYMBOL_GPL(vb2_reqbufs);
int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
struct v4l2_buffer *b)
{
+ struct vb2_buffer *vb;
int ret;
if (vb2_fileio_is_active(q)) {
@@ -733,9 +734,15 @@ int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
if (b->flags & V4L2_BUF_FLAG_REQUEST_FD)
return -EINVAL;
+ if (b->index >= q->num_buffers) {
+ dprintk(q, 1, "buffer index out of range\n");
+ return -EINVAL;
+ }
+ vb = q->bufs[b->index];
+
ret = vb2_queue_or_prepare_buf(q, mdev, b, true, NULL);
- return ret ? ret : vb2_core_prepare_buf(q, b->index, b);
+ return ret ? ret : vb2_core_prepare_buf(q, vb, b);
}
EXPORT_SYMBOL_GPL(vb2_prepare_buf);
@@ -803,6 +810,7 @@ int vb2_qbuf(struct vb2_queue *q, struct media_device *mdev,
struct v4l2_buffer *b)
{
struct media_request *req = NULL;
+ struct vb2_buffer *vb;
int ret;
if (vb2_fileio_is_active(q)) {
@@ -810,10 +818,16 @@ int vb2_qbuf(struct vb2_queue *q, struct media_device *mdev,
return -EBUSY;
}
+ if (b->index >= q->num_buffers) {
+ dprintk(q, 1, "buffer index out of range\n");
+ return -EINVAL;
+ }
+ vb = q->bufs[b->index];
+
ret = vb2_queue_or_prepare_buf(q, mdev, b, false, &req);
if (ret)
return ret;
- ret = vb2_core_qbuf(q, b->index, b, req);
+ ret = vb2_core_qbuf(q, vb, b, req);
if (req)
media_request_put(req);
return ret;
@@ -873,7 +887,15 @@ EXPORT_SYMBOL_GPL(vb2_streamoff);
int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb)
{
- return vb2_core_expbuf(q, &eb->fd, eb->type, eb->index,
+ struct vb2_buffer *vb;
+
+ if (eb->index >= q->num_buffers) {
+ dprintk(q, 1, "buffer index out of range\n");
+ return -EINVAL;
+ }
+ vb = q->bufs[eb->index];
+
+ return vb2_core_expbuf(q, &eb->fd, eb->type, vb,
eb->plane, eb->flags);
}
EXPORT_SYMBOL_GPL(vb2_expbuf);
diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c
index 909df82fed33..b322ef179f05 100644
--- a/drivers/media/dvb-core/dvb_vb2.c
+++ b/drivers/media/dvb-core/dvb_vb2.c
@@ -360,7 +360,7 @@ int dvb_vb2_querybuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
dprintk(1, "[%s] buffer index out of range\n", ctx->name);
return -EINVAL;
}
- vb2_core_querybuf(&ctx->vb_q, b->index, b);
+ vb2_core_querybuf(&ctx->vb_q, q->bufs[b->index], b);
dprintk(3, "[%s] index=%d\n", ctx->name, b->index);
return 0;
}
@@ -370,7 +370,7 @@ int dvb_vb2_expbuf(struct dvb_vb2_ctx *ctx, struct dmx_exportbuffer *exp)
struct vb2_queue *q = &ctx->vb_q;
int ret;
- ret = vb2_core_expbuf(&ctx->vb_q, &exp->fd, q->type, exp->index,
+ ret = vb2_core_expbuf(&ctx->vb_q, &exp->fd, q->type, q->bufs[exp->index],
0, exp->flags);
if (ret) {
dprintk(1, "[%s] index=%d errno=%d\n", ctx->name,
@@ -391,7 +391,7 @@ int dvb_vb2_qbuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
dprintk(1, "[%s] buffer index out of range\n", ctx->name);
return -EINVAL;
}
- ret = vb2_core_qbuf(&ctx->vb_q, b->index, b, NULL);
+ ret = vb2_core_qbuf(&ctx->vb_q, q->bufs[b->index], b, NULL);
if (ret) {
dprintk(1, "[%s] index=%d errno=%d\n", ctx->name,
b->index, ret);
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 4b6a9d2ea372..cd3ff1cd759d 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -747,7 +747,7 @@ int vb2_wait_for_all_buffers(struct vb2_queue *q);
/**
* vb2_core_querybuf() - query video buffer information.
* @q: pointer to &struct vb2_queue with videobuf2 queue.
- * @index: id number of the buffer.
+ * @vb: pointer to struct &vb2_buffer.
* @pb: buffer struct passed from userspace.
*
* Videobuf2 core helper to implement VIDIOC_QUERYBUF() operation. It is called
@@ -759,7 +759,7 @@ int vb2_wait_for_all_buffers(struct vb2_queue *q);
*
* Return: returns zero on success; an error code otherwise.
*/
-void vb2_core_querybuf(struct vb2_queue *q, unsigned int index, void *pb);
+void vb2_core_querybuf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb);
/**
* vb2_core_reqbufs() - Initiate streaming.
@@ -823,7 +823,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
* vb2_core_prepare_buf() - Pass ownership of a buffer from userspace
* to the kernel.
* @q: pointer to &struct vb2_queue with videobuf2 queue.
- * @index: id number of the buffer.
+ * @vb: pointer to struct &vb2_buffer.
* @pb: buffer structure passed from userspace to
* &v4l2_ioctl_ops->vidioc_prepare_buf handler in driver.
*
@@ -839,13 +839,13 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
*
* Return: returns zero on success; an error code otherwise.
*/
-int vb2_core_prepare_buf(struct vb2_queue *q, unsigned int index, void *pb);
+int vb2_core_prepare_buf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb);
/**
* vb2_core_qbuf() - Queue a buffer from userspace
*
* @q: pointer to &struct vb2_queue with videobuf2 queue.
- * @index: id number of the buffer
+ * @vb: pointer to struct &vb2_buffer.
* @pb: buffer structure passed from userspace to
* v4l2_ioctl_ops->vidioc_qbuf handler in driver
* @req: pointer to &struct media_request, may be NULL.
@@ -867,7 +867,7 @@ int vb2_core_prepare_buf(struct vb2_queue *q, unsigned int index, void *pb);
*
* Return: returns zero on success; an error code otherwise.
*/
-int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb,
+int vb2_core_qbuf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb,
struct media_request *req);
/**
@@ -931,7 +931,7 @@ int vb2_core_streamoff(struct vb2_queue *q, unsigned int type);
* @fd: pointer to the file descriptor associated with DMABUF
* (set by driver).
* @type: buffer type.
- * @index: id number of the buffer.
+ * @vb: pointer to struct &vb2_buffer.
* @plane: index of the plane to be exported, 0 for single plane queues
* @flags: file flags for newly created file, as defined at
* include/uapi/asm-generic/fcntl.h.
@@ -945,7 +945,7 @@ int vb2_core_streamoff(struct vb2_queue *q, unsigned int type);
* Return: returns zero on success; an error code otherwise.
*/
int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
- unsigned int index, unsigned int plane, unsigned int flags);
+ struct vb2_buffer *vb, unsigned int plane, unsigned int flags);
/**
* vb2_core_queue_init() - initialize a videobuf2 queue
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 04/53] media: amphion: Use vb2_get_buffer() instead of directly access to buffers array
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/amphion/vpu_dbg.c | 22 ++++++++++++++++++----
1 file changed, 18 insertions(+), 4 deletions(-)
diff --git a/drivers/media/platform/amphion/vpu_dbg.c b/drivers/media/platform/amphion/vpu_dbg.c
index 982c2c777484..a462d6fe4ea9 100644
--- a/drivers/media/platform/amphion/vpu_dbg.c
+++ b/drivers/media/platform/amphion/vpu_dbg.c
@@ -140,11 +140,18 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
vq = v4l2_m2m_get_src_vq(inst->fh.m2m_ctx);
for (i = 0; i < vq->num_buffers; i++) {
- struct vb2_buffer *vb = vq->bufs[i];
- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct vb2_buffer *vb;
+ struct vb2_v4l2_buffer *vbuf;
+
+ vb = vb2_get_buffer(vq, i);
+ if (!vb)
+ continue;
if (vb->state == VB2_BUF_STATE_DEQUEUED)
continue;
+
+ vbuf = to_vb2_v4l2_buffer(vb);
+
num = scnprintf(str, sizeof(str),
"output [%2d] state = %10s, %8s\n",
i, vb2_stat_name[vb->state],
@@ -155,11 +162,18 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
vq = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx);
for (i = 0; i < vq->num_buffers; i++) {
- struct vb2_buffer *vb = vq->bufs[i];
- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct vb2_buffer *vb;
+ struct vb2_v4l2_buffer *vbuf;
+
+ vb = vb2_get_buffer(vq, i);
+ if (!vb)
+ continue;
if (vb->state == VB2_BUF_STATE_DEQUEUED)
continue;
+
+ vbuf = to_vb2_v4l2_buffer(vb);
+
num = scnprintf(str, sizeof(str),
"capture[%2d] state = %10s, %8s\n",
i, vb2_stat_name[vb->state],
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 04/53] media: amphion: Use vb2_get_buffer() instead of directly access to buffers array
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/amphion/vpu_dbg.c | 22 ++++++++++++++++++----
1 file changed, 18 insertions(+), 4 deletions(-)
diff --git a/drivers/media/platform/amphion/vpu_dbg.c b/drivers/media/platform/amphion/vpu_dbg.c
index 982c2c777484..a462d6fe4ea9 100644
--- a/drivers/media/platform/amphion/vpu_dbg.c
+++ b/drivers/media/platform/amphion/vpu_dbg.c
@@ -140,11 +140,18 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
vq = v4l2_m2m_get_src_vq(inst->fh.m2m_ctx);
for (i = 0; i < vq->num_buffers; i++) {
- struct vb2_buffer *vb = vq->bufs[i];
- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct vb2_buffer *vb;
+ struct vb2_v4l2_buffer *vbuf;
+
+ vb = vb2_get_buffer(vq, i);
+ if (!vb)
+ continue;
if (vb->state == VB2_BUF_STATE_DEQUEUED)
continue;
+
+ vbuf = to_vb2_v4l2_buffer(vb);
+
num = scnprintf(str, sizeof(str),
"output [%2d] state = %10s, %8s\n",
i, vb2_stat_name[vb->state],
@@ -155,11 +162,18 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
vq = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx);
for (i = 0; i < vq->num_buffers; i++) {
- struct vb2_buffer *vb = vq->bufs[i];
- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct vb2_buffer *vb;
+ struct vb2_v4l2_buffer *vbuf;
+
+ vb = vb2_get_buffer(vq, i);
+ if (!vb)
+ continue;
if (vb->state == VB2_BUF_STATE_DEQUEUED)
continue;
+
+ vbuf = to_vb2_v4l2_buffer(vb);
+
num = scnprintf(str, sizeof(str),
"capture[%2d] state = %10s, %8s\n",
i, vb2_stat_name[vb->state],
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 04/53] media: amphion: Use vb2_get_buffer() instead of directly access to buffers array
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/amphion/vpu_dbg.c | 22 ++++++++++++++++++----
1 file changed, 18 insertions(+), 4 deletions(-)
diff --git a/drivers/media/platform/amphion/vpu_dbg.c b/drivers/media/platform/amphion/vpu_dbg.c
index 982c2c777484..a462d6fe4ea9 100644
--- a/drivers/media/platform/amphion/vpu_dbg.c
+++ b/drivers/media/platform/amphion/vpu_dbg.c
@@ -140,11 +140,18 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
vq = v4l2_m2m_get_src_vq(inst->fh.m2m_ctx);
for (i = 0; i < vq->num_buffers; i++) {
- struct vb2_buffer *vb = vq->bufs[i];
- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct vb2_buffer *vb;
+ struct vb2_v4l2_buffer *vbuf;
+
+ vb = vb2_get_buffer(vq, i);
+ if (!vb)
+ continue;
if (vb->state == VB2_BUF_STATE_DEQUEUED)
continue;
+
+ vbuf = to_vb2_v4l2_buffer(vb);
+
num = scnprintf(str, sizeof(str),
"output [%2d] state = %10s, %8s\n",
i, vb2_stat_name[vb->state],
@@ -155,11 +162,18 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
vq = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx);
for (i = 0; i < vq->num_buffers; i++) {
- struct vb2_buffer *vb = vq->bufs[i];
- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct vb2_buffer *vb;
+ struct vb2_v4l2_buffer *vbuf;
+
+ vb = vb2_get_buffer(vq, i);
+ if (!vb)
+ continue;
if (vb->state == VB2_BUF_STATE_DEQUEUED)
continue;
+
+ vbuf = to_vb2_v4l2_buffer(vb);
+
num = scnprintf(str, sizeof(str),
"capture[%2d] state = %10s, %8s\n",
i, vb2_stat_name[vb->state],
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 05/53] media: mediatek: jpeg: Use vb2_get_buffer() instead of directly access to buffers array
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
index 7194f88edc0f..73a063b1569b 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
@@ -598,12 +598,11 @@ static int mtk_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
goto end;
vq = v4l2_m2m_get_vq(fh->m2m_ctx, buf->type);
- if (buf->index >= vq->num_buffers) {
- dev_err(ctx->jpeg->dev, "buffer index out of range\n");
+ vb = vb2_get_buffer(vq, buf->index);
+ if (!vb) {
+ dev_err(ctx->jpeg->dev, "buffer not found\n");
return -EINVAL;
}
-
- vb = vq->bufs[buf->index];
jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
jpeg_src_buf->bs_size = buf->m.planes[0].bytesused;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 05/53] media: mediatek: jpeg: Use vb2_get_buffer() instead of directly access to buffers array
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
index 7194f88edc0f..73a063b1569b 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
@@ -598,12 +598,11 @@ static int mtk_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
goto end;
vq = v4l2_m2m_get_vq(fh->m2m_ctx, buf->type);
- if (buf->index >= vq->num_buffers) {
- dev_err(ctx->jpeg->dev, "buffer index out of range\n");
+ vb = vb2_get_buffer(vq, buf->index);
+ if (!vb) {
+ dev_err(ctx->jpeg->dev, "buffer not found\n");
return -EINVAL;
}
-
- vb = vq->bufs[buf->index];
jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
jpeg_src_buf->bs_size = buf->m.planes[0].bytesused;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 05/53] media: mediatek: jpeg: Use vb2_get_buffer() instead of directly access to buffers array
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
index 7194f88edc0f..73a063b1569b 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
@@ -598,12 +598,11 @@ static int mtk_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
goto end;
vq = v4l2_m2m_get_vq(fh->m2m_ctx, buf->type);
- if (buf->index >= vq->num_buffers) {
- dev_err(ctx->jpeg->dev, "buffer index out of range\n");
+ vb = vb2_get_buffer(vq, buf->index);
+ if (!vb) {
+ dev_err(ctx->jpeg->dev, "buffer not found\n");
return -EINVAL;
}
-
- vb = vq->bufs[buf->index];
jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb);
jpeg_src_buf->bs_size = buf->m.planes[0].bytesused;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 06/53] media: mediatek: vdec: Remove useless loop
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Simplify code by removing useless loop by using video buffer index.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
index e393e3e668f8..69d37b93bd35 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
@@ -1695,13 +1695,8 @@ static int vdec_vp9_slice_setup_core_buffer(struct vdec_vp9_slice_instance *inst
return -EINVAL;
/* update internal buffer's width/height */
- for (i = 0; i < vq->num_buffers; i++) {
- if (vb == vq->bufs[i]) {
- instance->dpb[i].width = w;
- instance->dpb[i].height = h;
- break;
- }
- }
+ instance->dpb[vb->index].width = w;
+ instance->dpb[vb->index].height = h;
/*
* get buffer's width/height from instance
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 06/53] media: mediatek: vdec: Remove useless loop
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Simplify code by removing useless loop by using video buffer index.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
index e393e3e668f8..69d37b93bd35 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
@@ -1695,13 +1695,8 @@ static int vdec_vp9_slice_setup_core_buffer(struct vdec_vp9_slice_instance *inst
return -EINVAL;
/* update internal buffer's width/height */
- for (i = 0; i < vq->num_buffers; i++) {
- if (vb == vq->bufs[i]) {
- instance->dpb[i].width = w;
- instance->dpb[i].height = h;
- break;
- }
- }
+ instance->dpb[vb->index].width = w;
+ instance->dpb[vb->index].height = h;
/*
* get buffer's width/height from instance
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 06/53] media: mediatek: vdec: Remove useless loop
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Simplify code by removing useless loop by using video buffer index.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
index e393e3e668f8..69d37b93bd35 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c
@@ -1695,13 +1695,8 @@ static int vdec_vp9_slice_setup_core_buffer(struct vdec_vp9_slice_instance *inst
return -EINVAL;
/* update internal buffer's width/height */
- for (i = 0; i < vq->num_buffers; i++) {
- if (vb == vq->bufs[i]) {
- instance->dpb[i].width = w;
- instance->dpb[i].height = h;
- break;
- }
- }
+ instance->dpb[vb->index].width = w;
+ instance->dpb[vb->index].height = h;
/*
* get buffer's width/height from instance
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 07/53] media: sti: hva: Use vb2_get_buffer() instead of directly access to buffers array
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Remove index range test since it is done by vb2_get_buffer().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/st/sti/hva/hva-v4l2.c b/drivers/media/platform/st/sti/hva/hva-v4l2.c
index 3a848ca32a0e..cfe83e9dc01b 100644
--- a/drivers/media/platform/st/sti/hva/hva-v4l2.c
+++ b/drivers/media/platform/st/sti/hva/hva-v4l2.c
@@ -569,14 +569,11 @@ static int hva_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
struct vb2_buffer *vb2_buf;
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, buf->type);
-
- if (buf->index >= vq->num_buffers) {
- dev_dbg(dev, "%s buffer index %d out of range (%d)\n",
- ctx->name, buf->index, vq->num_buffers);
+ vb2_buf = vb2_get_buffer(vq, buf->index);
+ if (!vb2_buf) {
+ dev_dbg(dev, "%s buffer index %d not found\n", ctx->name, buf->index);
return -EINVAL;
}
-
- vb2_buf = vb2_get_buffer(vq, buf->index);
stream = to_hva_stream(to_vb2_v4l2_buffer(vb2_buf));
stream->bytesused = buf->bytesused;
}
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 07/53] media: sti: hva: Use vb2_get_buffer() instead of directly access to buffers array
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Remove index range test since it is done by vb2_get_buffer().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/st/sti/hva/hva-v4l2.c b/drivers/media/platform/st/sti/hva/hva-v4l2.c
index 3a848ca32a0e..cfe83e9dc01b 100644
--- a/drivers/media/platform/st/sti/hva/hva-v4l2.c
+++ b/drivers/media/platform/st/sti/hva/hva-v4l2.c
@@ -569,14 +569,11 @@ static int hva_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
struct vb2_buffer *vb2_buf;
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, buf->type);
-
- if (buf->index >= vq->num_buffers) {
- dev_dbg(dev, "%s buffer index %d out of range (%d)\n",
- ctx->name, buf->index, vq->num_buffers);
+ vb2_buf = vb2_get_buffer(vq, buf->index);
+ if (!vb2_buf) {
+ dev_dbg(dev, "%s buffer index %d not found\n", ctx->name, buf->index);
return -EINVAL;
}
-
- vb2_buf = vb2_get_buffer(vq, buf->index);
stream = to_hva_stream(to_vb2_v4l2_buffer(vb2_buf));
stream->bytesused = buf->bytesused;
}
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 07/53] media: sti: hva: Use vb2_get_buffer() instead of directly access to buffers array
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Remove index range test since it is done by vb2_get_buffer().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/st/sti/hva/hva-v4l2.c b/drivers/media/platform/st/sti/hva/hva-v4l2.c
index 3a848ca32a0e..cfe83e9dc01b 100644
--- a/drivers/media/platform/st/sti/hva/hva-v4l2.c
+++ b/drivers/media/platform/st/sti/hva/hva-v4l2.c
@@ -569,14 +569,11 @@ static int hva_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
struct vb2_buffer *vb2_buf;
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, buf->type);
-
- if (buf->index >= vq->num_buffers) {
- dev_dbg(dev, "%s buffer index %d out of range (%d)\n",
- ctx->name, buf->index, vq->num_buffers);
+ vb2_buf = vb2_get_buffer(vq, buf->index);
+ if (!vb2_buf) {
+ dev_dbg(dev, "%s buffer index %d not found\n", ctx->name, buf->index);
return -EINVAL;
}
-
- vb2_buf = vb2_get_buffer(vq, buf->index);
stream = to_hva_stream(to_vb2_v4l2_buffer(vb2_buf));
stream->bytesused = buf->bytesused;
}
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 08/53] media: visl: Use vb2_get_buffer() instead of directly access to buffers array
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/visl/visl-dec.c | 28 ++++++++++++++++------
1 file changed, 21 insertions(+), 7 deletions(-)
diff --git a/drivers/media/test-drivers/visl/visl-dec.c b/drivers/media/test-drivers/visl/visl-dec.c
index 318d675e5668..ba20ea998d19 100644
--- a/drivers/media/test-drivers/visl/visl-dec.c
+++ b/drivers/media/test-drivers/visl/visl-dec.c
@@ -290,13 +290,20 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
for (i = 0; i < out_q->num_buffers; i++) {
char entry[] = "index: %u, state: %s, request_fd: %d, ";
u32 old_len = len;
- char *q_status = visl_get_vb2_state(out_q->bufs[i]->state);
+ struct vb2_buffer *vb2;
+ char *q_status;
+
+ vb2 = vb2_get_buffer(out_q, i);
+ if (!vb2)
+ continue;
+
+ q_status = visl_get_vb2_state(vb2->state);
len += scnprintf(&buf[len], TPG_STR_BUF_SZ - len,
entry, i, q_status,
- to_vb2_v4l2_buffer(out_q->bufs[i])->request_fd);
+ to_vb2_v4l2_buffer(vb2)->request_fd);
- len += visl_fill_bytesused(to_vb2_v4l2_buffer(out_q->bufs[i]),
+ len += visl_fill_bytesused(to_vb2_v4l2_buffer(vb2),
&buf[len],
TPG_STR_BUF_SZ - len);
@@ -342,13 +349,20 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
len = 0;
for (i = 0; i < cap_q->num_buffers; i++) {
u32 old_len = len;
- char *q_status = visl_get_vb2_state(cap_q->bufs[i]->state);
+ struct vb2_buffer *vb2;
+ char *q_status;
+
+ vb2 = vb2_get_buffer(cap_q, i);
+ if (!vb2)
+ continue;
+
+ q_status = visl_get_vb2_state(vb2->state);
len += scnprintf(&buf[len], TPG_STR_BUF_SZ - len,
"index: %u, status: %s, timestamp: %llu, is_held: %d",
- cap_q->bufs[i]->index, q_status,
- cap_q->bufs[i]->timestamp,
- to_vb2_v4l2_buffer(cap_q->bufs[i])->is_held);
+ vb2->index, q_status,
+ vb2->timestamp,
+ to_vb2_v4l2_buffer(vb2)->is_held);
tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, &buf[old_len]);
frame_dprintk(ctx->dev, run->dst->sequence, "%s", &buf[old_len]);
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 08/53] media: visl: Use vb2_get_buffer() instead of directly access to buffers array
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/visl/visl-dec.c | 28 ++++++++++++++++------
1 file changed, 21 insertions(+), 7 deletions(-)
diff --git a/drivers/media/test-drivers/visl/visl-dec.c b/drivers/media/test-drivers/visl/visl-dec.c
index 318d675e5668..ba20ea998d19 100644
--- a/drivers/media/test-drivers/visl/visl-dec.c
+++ b/drivers/media/test-drivers/visl/visl-dec.c
@@ -290,13 +290,20 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
for (i = 0; i < out_q->num_buffers; i++) {
char entry[] = "index: %u, state: %s, request_fd: %d, ";
u32 old_len = len;
- char *q_status = visl_get_vb2_state(out_q->bufs[i]->state);
+ struct vb2_buffer *vb2;
+ char *q_status;
+
+ vb2 = vb2_get_buffer(out_q, i);
+ if (!vb2)
+ continue;
+
+ q_status = visl_get_vb2_state(vb2->state);
len += scnprintf(&buf[len], TPG_STR_BUF_SZ - len,
entry, i, q_status,
- to_vb2_v4l2_buffer(out_q->bufs[i])->request_fd);
+ to_vb2_v4l2_buffer(vb2)->request_fd);
- len += visl_fill_bytesused(to_vb2_v4l2_buffer(out_q->bufs[i]),
+ len += visl_fill_bytesused(to_vb2_v4l2_buffer(vb2),
&buf[len],
TPG_STR_BUF_SZ - len);
@@ -342,13 +349,20 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
len = 0;
for (i = 0; i < cap_q->num_buffers; i++) {
u32 old_len = len;
- char *q_status = visl_get_vb2_state(cap_q->bufs[i]->state);
+ struct vb2_buffer *vb2;
+ char *q_status;
+
+ vb2 = vb2_get_buffer(cap_q, i);
+ if (!vb2)
+ continue;
+
+ q_status = visl_get_vb2_state(vb2->state);
len += scnprintf(&buf[len], TPG_STR_BUF_SZ - len,
"index: %u, status: %s, timestamp: %llu, is_held: %d",
- cap_q->bufs[i]->index, q_status,
- cap_q->bufs[i]->timestamp,
- to_vb2_v4l2_buffer(cap_q->bufs[i])->is_held);
+ vb2->index, q_status,
+ vb2->timestamp,
+ to_vb2_v4l2_buffer(vb2)->is_held);
tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, &buf[old_len]);
frame_dprintk(ctx->dev, run->dst->sequence, "%s", &buf[old_len]);
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 08/53] media: visl: Use vb2_get_buffer() instead of directly access to buffers array
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/visl/visl-dec.c | 28 ++++++++++++++++------
1 file changed, 21 insertions(+), 7 deletions(-)
diff --git a/drivers/media/test-drivers/visl/visl-dec.c b/drivers/media/test-drivers/visl/visl-dec.c
index 318d675e5668..ba20ea998d19 100644
--- a/drivers/media/test-drivers/visl/visl-dec.c
+++ b/drivers/media/test-drivers/visl/visl-dec.c
@@ -290,13 +290,20 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
for (i = 0; i < out_q->num_buffers; i++) {
char entry[] = "index: %u, state: %s, request_fd: %d, ";
u32 old_len = len;
- char *q_status = visl_get_vb2_state(out_q->bufs[i]->state);
+ struct vb2_buffer *vb2;
+ char *q_status;
+
+ vb2 = vb2_get_buffer(out_q, i);
+ if (!vb2)
+ continue;
+
+ q_status = visl_get_vb2_state(vb2->state);
len += scnprintf(&buf[len], TPG_STR_BUF_SZ - len,
entry, i, q_status,
- to_vb2_v4l2_buffer(out_q->bufs[i])->request_fd);
+ to_vb2_v4l2_buffer(vb2)->request_fd);
- len += visl_fill_bytesused(to_vb2_v4l2_buffer(out_q->bufs[i]),
+ len += visl_fill_bytesused(to_vb2_v4l2_buffer(vb2),
&buf[len],
TPG_STR_BUF_SZ - len);
@@ -342,13 +349,20 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
len = 0;
for (i = 0; i < cap_q->num_buffers; i++) {
u32 old_len = len;
- char *q_status = visl_get_vb2_state(cap_q->bufs[i]->state);
+ struct vb2_buffer *vb2;
+ char *q_status;
+
+ vb2 = vb2_get_buffer(cap_q, i);
+ if (!vb2)
+ continue;
+
+ q_status = visl_get_vb2_state(vb2->state);
len += scnprintf(&buf[len], TPG_STR_BUF_SZ - len,
"index: %u, status: %s, timestamp: %llu, is_held: %d",
- cap_q->bufs[i]->index, q_status,
- cap_q->bufs[i]->timestamp,
- to_vb2_v4l2_buffer(cap_q->bufs[i])->is_held);
+ vb2->index, q_status,
+ vb2->timestamp,
+ to_vb2_v4l2_buffer(vb2)->is_held);
tpg_gen_text(&ctx->tpg, basep, line++ * line_height, 16, &buf[old_len]);
frame_dprintk(ctx->dev, run->dst->sequence, "%s", &buf[old_len]);
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 09/53] media: atomisp: Use vb2_get_buffer() instead of directly access to buffers array
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
No need to check the result of vb2_get_buffer, vb2_ioctl_dqbuf() already
checked that it is valid.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/atomisp/pci/atomisp_ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index d2174156573a..4b65c69fa60d 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -1061,7 +1061,7 @@ static int atomisp_dqbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer
if (ret)
return ret;
- vb = pipe->vb_queue.bufs[buf->index];
+ vb = vb2_get_buffer(&pipe->vb_queue, buf->index);
frame = vb_to_frame(vb);
buf->reserved = asd->frame_status[buf->index];
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 09/53] media: atomisp: Use vb2_get_buffer() instead of directly access to buffers array
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
No need to check the result of vb2_get_buffer, vb2_ioctl_dqbuf() already
checked that it is valid.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/atomisp/pci/atomisp_ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index d2174156573a..4b65c69fa60d 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -1061,7 +1061,7 @@ static int atomisp_dqbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer
if (ret)
return ret;
- vb = pipe->vb_queue.bufs[buf->index];
+ vb = vb2_get_buffer(&pipe->vb_queue, buf->index);
frame = vb_to_frame(vb);
buf->reserved = asd->frame_status[buf->index];
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 09/53] media: atomisp: Use vb2_get_buffer() instead of directly access to buffers array
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
No need to check the result of vb2_get_buffer, vb2_ioctl_dqbuf() already
checked that it is valid.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/atomisp/pci/atomisp_ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index d2174156573a..4b65c69fa60d 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -1061,7 +1061,7 @@ static int atomisp_dqbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer
if (ret)
return ret;
- vb = pipe->vb_queue.bufs[buf->index];
+ vb = vb2_get_buffer(&pipe->vb_queue, buf->index);
frame = vb_to_frame(vb);
buf->reserved = asd->frame_status[buf->index];
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 10/53] media: dvb-core: Use vb2_get_buffer() instead of directly access to buffers array
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/dvb-core/dvb_vb2.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c
index b322ef179f05..3a966fdf814c 100644
--- a/drivers/media/dvb-core/dvb_vb2.c
+++ b/drivers/media/dvb-core/dvb_vb2.c
@@ -355,12 +355,13 @@ int dvb_vb2_reqbufs(struct dvb_vb2_ctx *ctx, struct dmx_requestbuffers *req)
int dvb_vb2_querybuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
{
struct vb2_queue *q = &ctx->vb_q;
+ struct vb2_buffer *vb2 = vb2_get_buffer(q, b->index);
- if (b->index >= q->num_buffers) {
- dprintk(1, "[%s] buffer index out of range\n", ctx->name);
+ if (!vb2) {
+ dprintk(1, "[%s] invalid buffer index\n", ctx->name);
return -EINVAL;
}
- vb2_core_querybuf(&ctx->vb_q, q->bufs[b->index], b);
+ vb2_core_querybuf(&ctx->vb_q, vb2, b);
dprintk(3, "[%s] index=%d\n", ctx->name, b->index);
return 0;
}
@@ -385,13 +386,14 @@ int dvb_vb2_expbuf(struct dvb_vb2_ctx *ctx, struct dmx_exportbuffer *exp)
int dvb_vb2_qbuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
{
struct vb2_queue *q = &ctx->vb_q;
+ struct vb2_buffer *vb2 = vb2_get_buffer(q, b->index);
int ret;
- if (b->index >= q->num_buffers) {
- dprintk(1, "[%s] buffer index out of range\n", ctx->name);
+ if (!vb2) {
+ dprintk(1, "[%s] invalid buffer index\n", ctx->name);
return -EINVAL;
}
- ret = vb2_core_qbuf(&ctx->vb_q, q->bufs[b->index], b, NULL);
+ ret = vb2_core_qbuf(&ctx->vb_q, vb2, b, NULL);
if (ret) {
dprintk(1, "[%s] index=%d errno=%d\n", ctx->name,
b->index, ret);
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 10/53] media: dvb-core: Use vb2_get_buffer() instead of directly access to buffers array
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/dvb-core/dvb_vb2.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c
index b322ef179f05..3a966fdf814c 100644
--- a/drivers/media/dvb-core/dvb_vb2.c
+++ b/drivers/media/dvb-core/dvb_vb2.c
@@ -355,12 +355,13 @@ int dvb_vb2_reqbufs(struct dvb_vb2_ctx *ctx, struct dmx_requestbuffers *req)
int dvb_vb2_querybuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
{
struct vb2_queue *q = &ctx->vb_q;
+ struct vb2_buffer *vb2 = vb2_get_buffer(q, b->index);
- if (b->index >= q->num_buffers) {
- dprintk(1, "[%s] buffer index out of range\n", ctx->name);
+ if (!vb2) {
+ dprintk(1, "[%s] invalid buffer index\n", ctx->name);
return -EINVAL;
}
- vb2_core_querybuf(&ctx->vb_q, q->bufs[b->index], b);
+ vb2_core_querybuf(&ctx->vb_q, vb2, b);
dprintk(3, "[%s] index=%d\n", ctx->name, b->index);
return 0;
}
@@ -385,13 +386,14 @@ int dvb_vb2_expbuf(struct dvb_vb2_ctx *ctx, struct dmx_exportbuffer *exp)
int dvb_vb2_qbuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
{
struct vb2_queue *q = &ctx->vb_q;
+ struct vb2_buffer *vb2 = vb2_get_buffer(q, b->index);
int ret;
- if (b->index >= q->num_buffers) {
- dprintk(1, "[%s] buffer index out of range\n", ctx->name);
+ if (!vb2) {
+ dprintk(1, "[%s] invalid buffer index\n", ctx->name);
return -EINVAL;
}
- ret = vb2_core_qbuf(&ctx->vb_q, q->bufs[b->index], b, NULL);
+ ret = vb2_core_qbuf(&ctx->vb_q, vb2, b, NULL);
if (ret) {
dprintk(1, "[%s] index=%d errno=%d\n", ctx->name,
b->index, ret);
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 10/53] media: dvb-core: Use vb2_get_buffer() instead of directly access to buffers array
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_buffer() instead of directly access to vb2_buffer buffer array.
This could allow to change the type bufs[] field of vb2_buffer structure if
needed.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/dvb-core/dvb_vb2.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c
index b322ef179f05..3a966fdf814c 100644
--- a/drivers/media/dvb-core/dvb_vb2.c
+++ b/drivers/media/dvb-core/dvb_vb2.c
@@ -355,12 +355,13 @@ int dvb_vb2_reqbufs(struct dvb_vb2_ctx *ctx, struct dmx_requestbuffers *req)
int dvb_vb2_querybuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
{
struct vb2_queue *q = &ctx->vb_q;
+ struct vb2_buffer *vb2 = vb2_get_buffer(q, b->index);
- if (b->index >= q->num_buffers) {
- dprintk(1, "[%s] buffer index out of range\n", ctx->name);
+ if (!vb2) {
+ dprintk(1, "[%s] invalid buffer index\n", ctx->name);
return -EINVAL;
}
- vb2_core_querybuf(&ctx->vb_q, q->bufs[b->index], b);
+ vb2_core_querybuf(&ctx->vb_q, vb2, b);
dprintk(3, "[%s] index=%d\n", ctx->name, b->index);
return 0;
}
@@ -385,13 +386,14 @@ int dvb_vb2_expbuf(struct dvb_vb2_ctx *ctx, struct dmx_exportbuffer *exp)
int dvb_vb2_qbuf(struct dvb_vb2_ctx *ctx, struct dmx_buffer *b)
{
struct vb2_queue *q = &ctx->vb_q;
+ struct vb2_buffer *vb2 = vb2_get_buffer(q, b->index);
int ret;
- if (b->index >= q->num_buffers) {
- dprintk(1, "[%s] buffer index out of range\n", ctx->name);
+ if (!vb2) {
+ dprintk(1, "[%s] invalid buffer index\n", ctx->name);
return -EINVAL;
}
- ret = vb2_core_qbuf(&ctx->vb_q, q->bufs[b->index], b, NULL);
+ ret = vb2_core_qbuf(&ctx->vb_q, vb2, b, NULL);
if (ret) {
dprintk(1, "[%s] index=%d errno=%d\n", ctx->name,
b->index, ret);
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 11/53] media: videobuf2: Access vb2_queue bufs array through helper functions
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
This patch adds 2 helpers functions to add and remove vb2 buffers
from a queue. With these 2 and vb2_get_buffer(), bufs field of
struct vb2_queue becomes like a private member of the structure.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 151 +++++++++++++-----
.../media/common/videobuf2/videobuf2-v4l2.c | 51 ++++--
2 files changed, 146 insertions(+), 56 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index b00e68fd747f..17b0dafacaab 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -407,6 +407,31 @@ static void init_buffer_cache_hints(struct vb2_queue *q, struct vb2_buffer *vb)
vb->skip_cache_sync_on_finish = 1;
}
+/**
+ * vb2_queue_add_buffer() - add a buffer to a queue
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ * @vb: pointer to &struct vb2_buffer to be added to the queue.
+ * @index: index where add vb2_buffer in the queue
+ */
+static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, unsigned int index)
+{
+ WARN_ON(index >= VB2_MAX_FRAME || q->bufs[index]);
+
+ q->bufs[index] = vb;
+ vb->index = index;
+ vb->vb2_queue = q;
+}
+
+/**
+ * vb2_queue_remove_buffer() - remove a buffer from a queue
+ * @vb: pointer to &struct vb2_buffer to be removed from the queue.
+ */
+static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
+{
+ vb->vb2_queue->bufs[vb->index] = NULL;
+ vb->vb2_queue = NULL;
+}
+
/*
* __vb2_queue_alloc() - allocate vb2 buffer structures and (for MMAP type)
* video buffer memory for all buffers/planes on the queue and initializes the
@@ -435,9 +460,7 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
}
vb->state = VB2_BUF_STATE_DEQUEUED;
- vb->vb2_queue = q;
vb->num_planes = num_planes;
- vb->index = q->num_buffers + buffer;
vb->type = q->type;
vb->memory = memory;
init_buffer_cache_hints(q, vb);
@@ -445,9 +468,9 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
vb->planes[plane].length = plane_sizes[plane];
vb->planes[plane].min_length = plane_sizes[plane];
}
- call_void_bufop(q, init_buffer, vb);
- q->bufs[vb->index] = vb;
+ vb2_queue_add_buffer(q, vb, q->num_buffers + buffer);
+ call_void_bufop(q, init_buffer, vb);
/* Allocate video buffer memory for the MMAP type */
if (memory == VB2_MEMORY_MMAP) {
@@ -455,7 +478,7 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
if (ret) {
dprintk(q, 1, "failed allocating memory for buffer %d\n",
buffer);
- q->bufs[vb->index] = NULL;
+ vb2_queue_remove_buffer(vb);
kfree(vb);
break;
}
@@ -470,7 +493,7 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
dprintk(q, 1, "buffer %d %p initialization failed\n",
buffer, vb);
__vb2_buf_mem_free(vb);
- q->bufs[vb->index] = NULL;
+ vb2_queue_remove_buffer(vb);
kfree(vb);
break;
}
@@ -493,7 +516,7 @@ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
++buffer) {
- vb = q->bufs[buffer];
+ vb = vb2_get_buffer(q, buffer);
if (!vb)
continue;
@@ -521,7 +544,7 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
/* Call driver-provided cleanup function for each buffer, if provided */
for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
++buffer) {
- struct vb2_buffer *vb = q->bufs[buffer];
+ struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
if (vb && vb->planes[0].mem_priv)
call_void_vb_qop(vb, buf_cleanup, vb);
@@ -562,15 +585,20 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
q->cnt_unprepare_streaming = 0;
}
for (buffer = 0; buffer < q->num_buffers; ++buffer) {
- struct vb2_buffer *vb = q->bufs[buffer];
- bool unbalanced = vb->cnt_mem_alloc != vb->cnt_mem_put ||
- vb->cnt_mem_prepare != vb->cnt_mem_finish ||
- vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr ||
- vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf ||
- vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf ||
- vb->cnt_buf_queue != vb->cnt_buf_done ||
- vb->cnt_buf_prepare != vb->cnt_buf_finish ||
- vb->cnt_buf_init != vb->cnt_buf_cleanup;
+ struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+ bool unbalanced;
+
+ if (!vb)
+ continue;
+
+ unbalanced = vb->cnt_mem_alloc != vb->cnt_mem_put ||
+ vb->cnt_mem_prepare != vb->cnt_mem_finish ||
+ vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr ||
+ vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf ||
+ vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf ||
+ vb->cnt_buf_queue != vb->cnt_buf_done ||
+ vb->cnt_buf_prepare != vb->cnt_buf_finish ||
+ vb->cnt_buf_init != vb->cnt_buf_cleanup;
if (unbalanced) {
pr_info("unbalanced counters for queue %p, buffer %d:\n",
@@ -610,8 +638,13 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
/* Free vb2 buffers */
for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
++buffer) {
- kfree(q->bufs[buffer]);
- q->bufs[buffer] = NULL;
+ struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+
+ if (!vb)
+ continue;
+
+ vb2_queue_remove_buffer(vb);
+ kfree(vb);
}
q->num_buffers -= buffers;
@@ -647,7 +680,12 @@ static bool __buffers_in_use(struct vb2_queue *q)
{
unsigned int buffer;
for (buffer = 0; buffer < q->num_buffers; ++buffer) {
- if (vb2_buffer_in_use(q, q->bufs[buffer]))
+ struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+
+ if (!vb)
+ continue;
+
+ if (vb2_buffer_in_use(q, vb))
return true;
}
return false;
@@ -1632,7 +1670,11 @@ static int vb2_start_streaming(struct vb2_queue *q)
* correctly return them to vb2.
*/
for (i = 0; i < q->num_buffers; ++i) {
- vb = q->bufs[i];
+ vb = vb2_get_buffer(q, i);
+
+ if (!vb)
+ continue;
+
if (vb->state == VB2_BUF_STATE_ACTIVE)
vb2_buffer_done(vb, VB2_BUF_STATE_QUEUED);
}
@@ -2033,12 +2075,18 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
* to vb2 in stop_streaming().
*/
if (WARN_ON(atomic_read(&q->owned_by_drv_count))) {
- for (i = 0; i < q->num_buffers; ++i)
- if (q->bufs[i]->state == VB2_BUF_STATE_ACTIVE) {
- pr_warn("driver bug: stop_streaming operation is leaving buf %p in active state\n",
- q->bufs[i]);
- vb2_buffer_done(q->bufs[i], VB2_BUF_STATE_ERROR);
+ for (i = 0; i < q->num_buffers; ++i) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
+
+ if (!vb)
+ continue;
+
+ if (vb->state == VB2_BUF_STATE_ACTIVE) {
+ pr_warn("driver bug: stop_streaming operation is leaving buffer %u in active state\n",
+ vb->index);
+ vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
}
+ }
/* Must be zero now */
WARN_ON(atomic_read(&q->owned_by_drv_count));
}
@@ -2072,9 +2120,14 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
* be changed, so we can't move the buf_finish() to __vb2_dqbuf().
*/
for (i = 0; i < q->num_buffers; ++i) {
- struct vb2_buffer *vb = q->bufs[i];
- struct media_request *req = vb->req_obj.req;
+ struct vb2_buffer *vb;
+ struct media_request *req;
+ vb = vb2_get_buffer(q, i);
+ if (!vb)
+ continue;
+
+ req = vb->req_obj.req;
/*
* If a request is associated with this buffer, then
* call buf_request_cancel() to give the driver to complete()
@@ -2223,10 +2276,12 @@ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
buffer = (off >> PLANE_INDEX_SHIFT) & BUFFER_INDEX_MASK;
*plane = (off >> PAGE_SHIFT) & PLANE_INDEX_MASK;
- if (buffer >= q->num_buffers || *plane >= q->bufs[buffer]->num_planes)
+ *vb = vb2_get_buffer(q, buffer);
+ if (!*vb)
+ return -EINVAL;
+ if (*plane >= (*vb)->num_planes)
return -EINVAL;
- *vb = q->bufs[buffer];
return 0;
}
@@ -2614,6 +2669,7 @@ struct vb2_fileio_data {
static int __vb2_init_fileio(struct vb2_queue *q, int read)
{
struct vb2_fileio_data *fileio;
+ struct vb2_buffer *vb;
int i, ret;
unsigned int count = 0;
@@ -2664,11 +2720,18 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
if (ret)
goto err_kfree;
+ /*
+ * Userspace can never add or delete buffers later, so there
+ * will never be holes. It is safe to assume that vb2_get_buffer(q, 0)
+ * will always return a valid vb pointer
+ */
+ vb = vb2_get_buffer(q, 0);
+
/*
* Check if plane_count is correct
* (multiplane buffers are not supported).
*/
- if (q->bufs[0]->num_planes != 1) {
+ if (vb->num_planes != 1) {
ret = -EBUSY;
goto err_reqbufs;
}
@@ -2677,12 +2740,15 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
* Get kernel address of each buffer.
*/
for (i = 0; i < q->num_buffers; i++) {
- fileio->bufs[i].vaddr = vb2_plane_vaddr(q->bufs[i], 0);
+ vb = vb2_get_buffer(q, i);
+ WARN_ON_ONCE(!vb);
+
+ fileio->bufs[i].vaddr = vb2_plane_vaddr(vb, 0);
if (fileio->bufs[i].vaddr == NULL) {
ret = -EINVAL;
goto err_reqbufs;
}
- fileio->bufs[i].size = vb2_plane_size(q->bufs[i], 0);
+ fileio->bufs[i].size = vb2_plane_size(vb, 0);
}
/*
@@ -2810,15 +2876,17 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
fileio->cur_index = index;
buf = &fileio->bufs[index];
- b = q->bufs[index];
+
+ /* b can never be NULL when using fileio. */
+ b = vb2_get_buffer(q, index);
/*
* Get number of bytes filled by the driver
*/
buf->pos = 0;
buf->queued = 0;
- buf->size = read ? vb2_get_plane_payload(q->bufs[index], 0)
- : vb2_plane_size(q->bufs[index], 0);
+ buf->size = read ? vb2_get_plane_payload(b, 0)
+ : vb2_plane_size(b, 0);
/* Compensate for data_offset on read in the multiplanar case. */
if (is_multiplanar && read &&
b->planes[0].data_offset < buf->size) {
@@ -2861,7 +2929,8 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
* Queue next buffer if required.
*/
if (buf->pos == buf->size || (!read && fileio->write_immediately)) {
- struct vb2_buffer *b = q->bufs[index];
+ /* b can never be NULL when using fileio. */
+ struct vb2_buffer *b = vb2_get_buffer(q, index);
/*
* Check if this is the last buffer to read.
@@ -2888,7 +2957,7 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
*/
buf->pos = 0;
buf->queued = 1;
- buf->size = vb2_plane_size(q->bufs[index], 0);
+ buf->size = vb2_plane_size(b, 0);
fileio->q_count += 1;
/*
* If we are queuing up buffers for the first time, then
@@ -2959,7 +3028,9 @@ static int vb2_thread(void *data)
* Call vb2_dqbuf to get buffer back.
*/
if (prequeue) {
- vb = q->bufs[index++];
+ vb = vb2_get_buffer(q, index++);
+ if (!vb)
+ continue;
prequeue--;
} else {
call_void_qop(q, wait_finish, q);
@@ -2968,7 +3039,7 @@ static int vb2_thread(void *data)
call_void_qop(q, wait_prepare, q);
dprintk(q, 5, "file io: vb2_dqbuf result: %d\n", ret);
if (!ret)
- vb = q->bufs[index];
+ vb = vb2_get_buffer(q, index);
}
if (ret || threadio->stop)
break;
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 697c8a9f98cd..3395e702ad1f 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -383,9 +383,9 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md
return -EINVAL;
}
- if (q->bufs[b->index] == NULL) {
- /* Should never happen */
- dprintk(q, 1, "%s: buffer is NULL\n", opname);
+ vb = vb2_get_buffer(q, b->index);
+ if (!vb) {
+ dprintk(q, 1, "%s: buffer %u is NULL\n", opname, b->index);
return -EINVAL;
}
@@ -394,7 +394,6 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md
return -EINVAL;
}
- vb = q->bufs[b->index];
vbuf = to_vb2_v4l2_buffer(vb);
ret = __verify_planes_array(vb, b);
if (ret)
@@ -628,11 +627,22 @@ static const struct vb2_buf_ops v4l2_buf_ops = {
struct vb2_buffer *vb2_find_buffer(struct vb2_queue *q, u64 timestamp)
{
unsigned int i;
+ struct vb2_buffer *vb2;
- for (i = 0; i < q->num_buffers; i++)
- if (q->bufs[i]->copied_timestamp &&
- q->bufs[i]->timestamp == timestamp)
- return vb2_get_buffer(q, i);
+ /*
+ * This loop doesn't scale if there is a really large number of buffers.
+ * Maybe something more efficient will be needed in this case.
+ */
+ for (i = 0; i < q->num_buffers; i++) {
+ vb2 = vb2_get_buffer(q, i);
+
+ if (!vb2)
+ continue;
+
+ if (vb2->copied_timestamp &&
+ vb2->timestamp == timestamp)
+ return vb2;
+ }
return NULL;
}
EXPORT_SYMBOL_GPL(vb2_find_buffer);
@@ -660,11 +670,12 @@ int vb2_querybuf(struct vb2_queue *q, struct v4l2_buffer *b)
return -EINVAL;
}
- if (b->index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
+ vb = vb2_get_buffer(q, b->index);
+ if (!vb) {
+ dprintk(q, 1, "can't find the requested buffer %u\n", b->index);
return -EINVAL;
}
- vb = q->bufs[b->index];
+
ret = __verify_planes_array(vb, b);
if (!ret)
vb2_core_querybuf(q, vb, b);
@@ -734,11 +745,11 @@ int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
if (b->flags & V4L2_BUF_FLAG_REQUEST_FD)
return -EINVAL;
- if (b->index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
+ vb = vb2_get_buffer(q, b->index);
+ if (!vb) {
+ dprintk(q, 1, "can't find the requested buffer %u\n", b->index);
return -EINVAL;
}
- vb = q->bufs[b->index];
ret = vb2_queue_or_prepare_buf(q, mdev, b, true, NULL);
@@ -822,7 +833,11 @@ int vb2_qbuf(struct vb2_queue *q, struct media_device *mdev,
dprintk(q, 1, "buffer index out of range\n");
return -EINVAL;
}
- vb = q->bufs[b->index];
+ vb = vb2_get_buffer(q, b->index);
+ if (!vb) {
+ dprintk(q, 1, "can't find the requested buffer %u\n", b->index);
+ return -EINVAL;
+ }
ret = vb2_queue_or_prepare_buf(q, mdev, b, false, &req);
if (ret)
@@ -893,7 +908,11 @@ int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb)
dprintk(q, 1, "buffer index out of range\n");
return -EINVAL;
}
- vb = q->bufs[eb->index];
+ vb = vb2_get_buffer(q, eb->index);
+ if (!vb) {
+ dprintk(q, 1, "can't find the requested buffer %u\n", eb->index);
+ return -EINVAL;
+ }
return vb2_core_expbuf(q, &eb->fd, eb->type, vb,
eb->plane, eb->flags);
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 11/53] media: videobuf2: Access vb2_queue bufs array through helper functions
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
This patch adds 2 helpers functions to add and remove vb2 buffers
from a queue. With these 2 and vb2_get_buffer(), bufs field of
struct vb2_queue becomes like a private member of the structure.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 151 +++++++++++++-----
.../media/common/videobuf2/videobuf2-v4l2.c | 51 ++++--
2 files changed, 146 insertions(+), 56 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index b00e68fd747f..17b0dafacaab 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -407,6 +407,31 @@ static void init_buffer_cache_hints(struct vb2_queue *q, struct vb2_buffer *vb)
vb->skip_cache_sync_on_finish = 1;
}
+/**
+ * vb2_queue_add_buffer() - add a buffer to a queue
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ * @vb: pointer to &struct vb2_buffer to be added to the queue.
+ * @index: index where add vb2_buffer in the queue
+ */
+static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, unsigned int index)
+{
+ WARN_ON(index >= VB2_MAX_FRAME || q->bufs[index]);
+
+ q->bufs[index] = vb;
+ vb->index = index;
+ vb->vb2_queue = q;
+}
+
+/**
+ * vb2_queue_remove_buffer() - remove a buffer from a queue
+ * @vb: pointer to &struct vb2_buffer to be removed from the queue.
+ */
+static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
+{
+ vb->vb2_queue->bufs[vb->index] = NULL;
+ vb->vb2_queue = NULL;
+}
+
/*
* __vb2_queue_alloc() - allocate vb2 buffer structures and (for MMAP type)
* video buffer memory for all buffers/planes on the queue and initializes the
@@ -435,9 +460,7 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
}
vb->state = VB2_BUF_STATE_DEQUEUED;
- vb->vb2_queue = q;
vb->num_planes = num_planes;
- vb->index = q->num_buffers + buffer;
vb->type = q->type;
vb->memory = memory;
init_buffer_cache_hints(q, vb);
@@ -445,9 +468,9 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
vb->planes[plane].length = plane_sizes[plane];
vb->planes[plane].min_length = plane_sizes[plane];
}
- call_void_bufop(q, init_buffer, vb);
- q->bufs[vb->index] = vb;
+ vb2_queue_add_buffer(q, vb, q->num_buffers + buffer);
+ call_void_bufop(q, init_buffer, vb);
/* Allocate video buffer memory for the MMAP type */
if (memory == VB2_MEMORY_MMAP) {
@@ -455,7 +478,7 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
if (ret) {
dprintk(q, 1, "failed allocating memory for buffer %d\n",
buffer);
- q->bufs[vb->index] = NULL;
+ vb2_queue_remove_buffer(vb);
kfree(vb);
break;
}
@@ -470,7 +493,7 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
dprintk(q, 1, "buffer %d %p initialization failed\n",
buffer, vb);
__vb2_buf_mem_free(vb);
- q->bufs[vb->index] = NULL;
+ vb2_queue_remove_buffer(vb);
kfree(vb);
break;
}
@@ -493,7 +516,7 @@ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
++buffer) {
- vb = q->bufs[buffer];
+ vb = vb2_get_buffer(q, buffer);
if (!vb)
continue;
@@ -521,7 +544,7 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
/* Call driver-provided cleanup function for each buffer, if provided */
for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
++buffer) {
- struct vb2_buffer *vb = q->bufs[buffer];
+ struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
if (vb && vb->planes[0].mem_priv)
call_void_vb_qop(vb, buf_cleanup, vb);
@@ -562,15 +585,20 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
q->cnt_unprepare_streaming = 0;
}
for (buffer = 0; buffer < q->num_buffers; ++buffer) {
- struct vb2_buffer *vb = q->bufs[buffer];
- bool unbalanced = vb->cnt_mem_alloc != vb->cnt_mem_put ||
- vb->cnt_mem_prepare != vb->cnt_mem_finish ||
- vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr ||
- vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf ||
- vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf ||
- vb->cnt_buf_queue != vb->cnt_buf_done ||
- vb->cnt_buf_prepare != vb->cnt_buf_finish ||
- vb->cnt_buf_init != vb->cnt_buf_cleanup;
+ struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+ bool unbalanced;
+
+ if (!vb)
+ continue;
+
+ unbalanced = vb->cnt_mem_alloc != vb->cnt_mem_put ||
+ vb->cnt_mem_prepare != vb->cnt_mem_finish ||
+ vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr ||
+ vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf ||
+ vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf ||
+ vb->cnt_buf_queue != vb->cnt_buf_done ||
+ vb->cnt_buf_prepare != vb->cnt_buf_finish ||
+ vb->cnt_buf_init != vb->cnt_buf_cleanup;
if (unbalanced) {
pr_info("unbalanced counters for queue %p, buffer %d:\n",
@@ -610,8 +638,13 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
/* Free vb2 buffers */
for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
++buffer) {
- kfree(q->bufs[buffer]);
- q->bufs[buffer] = NULL;
+ struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+
+ if (!vb)
+ continue;
+
+ vb2_queue_remove_buffer(vb);
+ kfree(vb);
}
q->num_buffers -= buffers;
@@ -647,7 +680,12 @@ static bool __buffers_in_use(struct vb2_queue *q)
{
unsigned int buffer;
for (buffer = 0; buffer < q->num_buffers; ++buffer) {
- if (vb2_buffer_in_use(q, q->bufs[buffer]))
+ struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+
+ if (!vb)
+ continue;
+
+ if (vb2_buffer_in_use(q, vb))
return true;
}
return false;
@@ -1632,7 +1670,11 @@ static int vb2_start_streaming(struct vb2_queue *q)
* correctly return them to vb2.
*/
for (i = 0; i < q->num_buffers; ++i) {
- vb = q->bufs[i];
+ vb = vb2_get_buffer(q, i);
+
+ if (!vb)
+ continue;
+
if (vb->state == VB2_BUF_STATE_ACTIVE)
vb2_buffer_done(vb, VB2_BUF_STATE_QUEUED);
}
@@ -2033,12 +2075,18 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
* to vb2 in stop_streaming().
*/
if (WARN_ON(atomic_read(&q->owned_by_drv_count))) {
- for (i = 0; i < q->num_buffers; ++i)
- if (q->bufs[i]->state == VB2_BUF_STATE_ACTIVE) {
- pr_warn("driver bug: stop_streaming operation is leaving buf %p in active state\n",
- q->bufs[i]);
- vb2_buffer_done(q->bufs[i], VB2_BUF_STATE_ERROR);
+ for (i = 0; i < q->num_buffers; ++i) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
+
+ if (!vb)
+ continue;
+
+ if (vb->state == VB2_BUF_STATE_ACTIVE) {
+ pr_warn("driver bug: stop_streaming operation is leaving buffer %u in active state\n",
+ vb->index);
+ vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
}
+ }
/* Must be zero now */
WARN_ON(atomic_read(&q->owned_by_drv_count));
}
@@ -2072,9 +2120,14 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
* be changed, so we can't move the buf_finish() to __vb2_dqbuf().
*/
for (i = 0; i < q->num_buffers; ++i) {
- struct vb2_buffer *vb = q->bufs[i];
- struct media_request *req = vb->req_obj.req;
+ struct vb2_buffer *vb;
+ struct media_request *req;
+ vb = vb2_get_buffer(q, i);
+ if (!vb)
+ continue;
+
+ req = vb->req_obj.req;
/*
* If a request is associated with this buffer, then
* call buf_request_cancel() to give the driver to complete()
@@ -2223,10 +2276,12 @@ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
buffer = (off >> PLANE_INDEX_SHIFT) & BUFFER_INDEX_MASK;
*plane = (off >> PAGE_SHIFT) & PLANE_INDEX_MASK;
- if (buffer >= q->num_buffers || *plane >= q->bufs[buffer]->num_planes)
+ *vb = vb2_get_buffer(q, buffer);
+ if (!*vb)
+ return -EINVAL;
+ if (*plane >= (*vb)->num_planes)
return -EINVAL;
- *vb = q->bufs[buffer];
return 0;
}
@@ -2614,6 +2669,7 @@ struct vb2_fileio_data {
static int __vb2_init_fileio(struct vb2_queue *q, int read)
{
struct vb2_fileio_data *fileio;
+ struct vb2_buffer *vb;
int i, ret;
unsigned int count = 0;
@@ -2664,11 +2720,18 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
if (ret)
goto err_kfree;
+ /*
+ * Userspace can never add or delete buffers later, so there
+ * will never be holes. It is safe to assume that vb2_get_buffer(q, 0)
+ * will always return a valid vb pointer
+ */
+ vb = vb2_get_buffer(q, 0);
+
/*
* Check if plane_count is correct
* (multiplane buffers are not supported).
*/
- if (q->bufs[0]->num_planes != 1) {
+ if (vb->num_planes != 1) {
ret = -EBUSY;
goto err_reqbufs;
}
@@ -2677,12 +2740,15 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
* Get kernel address of each buffer.
*/
for (i = 0; i < q->num_buffers; i++) {
- fileio->bufs[i].vaddr = vb2_plane_vaddr(q->bufs[i], 0);
+ vb = vb2_get_buffer(q, i);
+ WARN_ON_ONCE(!vb);
+
+ fileio->bufs[i].vaddr = vb2_plane_vaddr(vb, 0);
if (fileio->bufs[i].vaddr == NULL) {
ret = -EINVAL;
goto err_reqbufs;
}
- fileio->bufs[i].size = vb2_plane_size(q->bufs[i], 0);
+ fileio->bufs[i].size = vb2_plane_size(vb, 0);
}
/*
@@ -2810,15 +2876,17 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
fileio->cur_index = index;
buf = &fileio->bufs[index];
- b = q->bufs[index];
+
+ /* b can never be NULL when using fileio. */
+ b = vb2_get_buffer(q, index);
/*
* Get number of bytes filled by the driver
*/
buf->pos = 0;
buf->queued = 0;
- buf->size = read ? vb2_get_plane_payload(q->bufs[index], 0)
- : vb2_plane_size(q->bufs[index], 0);
+ buf->size = read ? vb2_get_plane_payload(b, 0)
+ : vb2_plane_size(b, 0);
/* Compensate for data_offset on read in the multiplanar case. */
if (is_multiplanar && read &&
b->planes[0].data_offset < buf->size) {
@@ -2861,7 +2929,8 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
* Queue next buffer if required.
*/
if (buf->pos == buf->size || (!read && fileio->write_immediately)) {
- struct vb2_buffer *b = q->bufs[index];
+ /* b can never be NULL when using fileio. */
+ struct vb2_buffer *b = vb2_get_buffer(q, index);
/*
* Check if this is the last buffer to read.
@@ -2888,7 +2957,7 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
*/
buf->pos = 0;
buf->queued = 1;
- buf->size = vb2_plane_size(q->bufs[index], 0);
+ buf->size = vb2_plane_size(b, 0);
fileio->q_count += 1;
/*
* If we are queuing up buffers for the first time, then
@@ -2959,7 +3028,9 @@ static int vb2_thread(void *data)
* Call vb2_dqbuf to get buffer back.
*/
if (prequeue) {
- vb = q->bufs[index++];
+ vb = vb2_get_buffer(q, index++);
+ if (!vb)
+ continue;
prequeue--;
} else {
call_void_qop(q, wait_finish, q);
@@ -2968,7 +3039,7 @@ static int vb2_thread(void *data)
call_void_qop(q, wait_prepare, q);
dprintk(q, 5, "file io: vb2_dqbuf result: %d\n", ret);
if (!ret)
- vb = q->bufs[index];
+ vb = vb2_get_buffer(q, index);
}
if (ret || threadio->stop)
break;
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 697c8a9f98cd..3395e702ad1f 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -383,9 +383,9 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md
return -EINVAL;
}
- if (q->bufs[b->index] == NULL) {
- /* Should never happen */
- dprintk(q, 1, "%s: buffer is NULL\n", opname);
+ vb = vb2_get_buffer(q, b->index);
+ if (!vb) {
+ dprintk(q, 1, "%s: buffer %u is NULL\n", opname, b->index);
return -EINVAL;
}
@@ -394,7 +394,6 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md
return -EINVAL;
}
- vb = q->bufs[b->index];
vbuf = to_vb2_v4l2_buffer(vb);
ret = __verify_planes_array(vb, b);
if (ret)
@@ -628,11 +627,22 @@ static const struct vb2_buf_ops v4l2_buf_ops = {
struct vb2_buffer *vb2_find_buffer(struct vb2_queue *q, u64 timestamp)
{
unsigned int i;
+ struct vb2_buffer *vb2;
- for (i = 0; i < q->num_buffers; i++)
- if (q->bufs[i]->copied_timestamp &&
- q->bufs[i]->timestamp == timestamp)
- return vb2_get_buffer(q, i);
+ /*
+ * This loop doesn't scale if there is a really large number of buffers.
+ * Maybe something more efficient will be needed in this case.
+ */
+ for (i = 0; i < q->num_buffers; i++) {
+ vb2 = vb2_get_buffer(q, i);
+
+ if (!vb2)
+ continue;
+
+ if (vb2->copied_timestamp &&
+ vb2->timestamp == timestamp)
+ return vb2;
+ }
return NULL;
}
EXPORT_SYMBOL_GPL(vb2_find_buffer);
@@ -660,11 +670,12 @@ int vb2_querybuf(struct vb2_queue *q, struct v4l2_buffer *b)
return -EINVAL;
}
- if (b->index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
+ vb = vb2_get_buffer(q, b->index);
+ if (!vb) {
+ dprintk(q, 1, "can't find the requested buffer %u\n", b->index);
return -EINVAL;
}
- vb = q->bufs[b->index];
+
ret = __verify_planes_array(vb, b);
if (!ret)
vb2_core_querybuf(q, vb, b);
@@ -734,11 +745,11 @@ int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
if (b->flags & V4L2_BUF_FLAG_REQUEST_FD)
return -EINVAL;
- if (b->index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
+ vb = vb2_get_buffer(q, b->index);
+ if (!vb) {
+ dprintk(q, 1, "can't find the requested buffer %u\n", b->index);
return -EINVAL;
}
- vb = q->bufs[b->index];
ret = vb2_queue_or_prepare_buf(q, mdev, b, true, NULL);
@@ -822,7 +833,11 @@ int vb2_qbuf(struct vb2_queue *q, struct media_device *mdev,
dprintk(q, 1, "buffer index out of range\n");
return -EINVAL;
}
- vb = q->bufs[b->index];
+ vb = vb2_get_buffer(q, b->index);
+ if (!vb) {
+ dprintk(q, 1, "can't find the requested buffer %u\n", b->index);
+ return -EINVAL;
+ }
ret = vb2_queue_or_prepare_buf(q, mdev, b, false, &req);
if (ret)
@@ -893,7 +908,11 @@ int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb)
dprintk(q, 1, "buffer index out of range\n");
return -EINVAL;
}
- vb = q->bufs[eb->index];
+ vb = vb2_get_buffer(q, eb->index);
+ if (!vb) {
+ dprintk(q, 1, "can't find the requested buffer %u\n", eb->index);
+ return -EINVAL;
+ }
return vb2_core_expbuf(q, &eb->fd, eb->type, vb,
eb->plane, eb->flags);
--
2.39.2
_______________________________________________
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Linux-rockchip@lists.infradead.org
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^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 11/53] media: videobuf2: Access vb2_queue bufs array through helper functions
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
This patch adds 2 helpers functions to add and remove vb2 buffers
from a queue. With these 2 and vb2_get_buffer(), bufs field of
struct vb2_queue becomes like a private member of the structure.
After each call to vb2_get_buffer() we need to be sure that we get
a valid pointer so check the return value of all of them.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 151 +++++++++++++-----
.../media/common/videobuf2/videobuf2-v4l2.c | 51 ++++--
2 files changed, 146 insertions(+), 56 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index b00e68fd747f..17b0dafacaab 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -407,6 +407,31 @@ static void init_buffer_cache_hints(struct vb2_queue *q, struct vb2_buffer *vb)
vb->skip_cache_sync_on_finish = 1;
}
+/**
+ * vb2_queue_add_buffer() - add a buffer to a queue
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ * @vb: pointer to &struct vb2_buffer to be added to the queue.
+ * @index: index where add vb2_buffer in the queue
+ */
+static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, unsigned int index)
+{
+ WARN_ON(index >= VB2_MAX_FRAME || q->bufs[index]);
+
+ q->bufs[index] = vb;
+ vb->index = index;
+ vb->vb2_queue = q;
+}
+
+/**
+ * vb2_queue_remove_buffer() - remove a buffer from a queue
+ * @vb: pointer to &struct vb2_buffer to be removed from the queue.
+ */
+static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
+{
+ vb->vb2_queue->bufs[vb->index] = NULL;
+ vb->vb2_queue = NULL;
+}
+
/*
* __vb2_queue_alloc() - allocate vb2 buffer structures and (for MMAP type)
* video buffer memory for all buffers/planes on the queue and initializes the
@@ -435,9 +460,7 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
}
vb->state = VB2_BUF_STATE_DEQUEUED;
- vb->vb2_queue = q;
vb->num_planes = num_planes;
- vb->index = q->num_buffers + buffer;
vb->type = q->type;
vb->memory = memory;
init_buffer_cache_hints(q, vb);
@@ -445,9 +468,9 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
vb->planes[plane].length = plane_sizes[plane];
vb->planes[plane].min_length = plane_sizes[plane];
}
- call_void_bufop(q, init_buffer, vb);
- q->bufs[vb->index] = vb;
+ vb2_queue_add_buffer(q, vb, q->num_buffers + buffer);
+ call_void_bufop(q, init_buffer, vb);
/* Allocate video buffer memory for the MMAP type */
if (memory == VB2_MEMORY_MMAP) {
@@ -455,7 +478,7 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
if (ret) {
dprintk(q, 1, "failed allocating memory for buffer %d\n",
buffer);
- q->bufs[vb->index] = NULL;
+ vb2_queue_remove_buffer(vb);
kfree(vb);
break;
}
@@ -470,7 +493,7 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
dprintk(q, 1, "buffer %d %p initialization failed\n",
buffer, vb);
__vb2_buf_mem_free(vb);
- q->bufs[vb->index] = NULL;
+ vb2_queue_remove_buffer(vb);
kfree(vb);
break;
}
@@ -493,7 +516,7 @@ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
++buffer) {
- vb = q->bufs[buffer];
+ vb = vb2_get_buffer(q, buffer);
if (!vb)
continue;
@@ -521,7 +544,7 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
/* Call driver-provided cleanup function for each buffer, if provided */
for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
++buffer) {
- struct vb2_buffer *vb = q->bufs[buffer];
+ struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
if (vb && vb->planes[0].mem_priv)
call_void_vb_qop(vb, buf_cleanup, vb);
@@ -562,15 +585,20 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
q->cnt_unprepare_streaming = 0;
}
for (buffer = 0; buffer < q->num_buffers; ++buffer) {
- struct vb2_buffer *vb = q->bufs[buffer];
- bool unbalanced = vb->cnt_mem_alloc != vb->cnt_mem_put ||
- vb->cnt_mem_prepare != vb->cnt_mem_finish ||
- vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr ||
- vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf ||
- vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf ||
- vb->cnt_buf_queue != vb->cnt_buf_done ||
- vb->cnt_buf_prepare != vb->cnt_buf_finish ||
- vb->cnt_buf_init != vb->cnt_buf_cleanup;
+ struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+ bool unbalanced;
+
+ if (!vb)
+ continue;
+
+ unbalanced = vb->cnt_mem_alloc != vb->cnt_mem_put ||
+ vb->cnt_mem_prepare != vb->cnt_mem_finish ||
+ vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr ||
+ vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf ||
+ vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf ||
+ vb->cnt_buf_queue != vb->cnt_buf_done ||
+ vb->cnt_buf_prepare != vb->cnt_buf_finish ||
+ vb->cnt_buf_init != vb->cnt_buf_cleanup;
if (unbalanced) {
pr_info("unbalanced counters for queue %p, buffer %d:\n",
@@ -610,8 +638,13 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
/* Free vb2 buffers */
for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
++buffer) {
- kfree(q->bufs[buffer]);
- q->bufs[buffer] = NULL;
+ struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+
+ if (!vb)
+ continue;
+
+ vb2_queue_remove_buffer(vb);
+ kfree(vb);
}
q->num_buffers -= buffers;
@@ -647,7 +680,12 @@ static bool __buffers_in_use(struct vb2_queue *q)
{
unsigned int buffer;
for (buffer = 0; buffer < q->num_buffers; ++buffer) {
- if (vb2_buffer_in_use(q, q->bufs[buffer]))
+ struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+
+ if (!vb)
+ continue;
+
+ if (vb2_buffer_in_use(q, vb))
return true;
}
return false;
@@ -1632,7 +1670,11 @@ static int vb2_start_streaming(struct vb2_queue *q)
* correctly return them to vb2.
*/
for (i = 0; i < q->num_buffers; ++i) {
- vb = q->bufs[i];
+ vb = vb2_get_buffer(q, i);
+
+ if (!vb)
+ continue;
+
if (vb->state == VB2_BUF_STATE_ACTIVE)
vb2_buffer_done(vb, VB2_BUF_STATE_QUEUED);
}
@@ -2033,12 +2075,18 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
* to vb2 in stop_streaming().
*/
if (WARN_ON(atomic_read(&q->owned_by_drv_count))) {
- for (i = 0; i < q->num_buffers; ++i)
- if (q->bufs[i]->state == VB2_BUF_STATE_ACTIVE) {
- pr_warn("driver bug: stop_streaming operation is leaving buf %p in active state\n",
- q->bufs[i]);
- vb2_buffer_done(q->bufs[i], VB2_BUF_STATE_ERROR);
+ for (i = 0; i < q->num_buffers; ++i) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
+
+ if (!vb)
+ continue;
+
+ if (vb->state == VB2_BUF_STATE_ACTIVE) {
+ pr_warn("driver bug: stop_streaming operation is leaving buffer %u in active state\n",
+ vb->index);
+ vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
}
+ }
/* Must be zero now */
WARN_ON(atomic_read(&q->owned_by_drv_count));
}
@@ -2072,9 +2120,14 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
* be changed, so we can't move the buf_finish() to __vb2_dqbuf().
*/
for (i = 0; i < q->num_buffers; ++i) {
- struct vb2_buffer *vb = q->bufs[i];
- struct media_request *req = vb->req_obj.req;
+ struct vb2_buffer *vb;
+ struct media_request *req;
+ vb = vb2_get_buffer(q, i);
+ if (!vb)
+ continue;
+
+ req = vb->req_obj.req;
/*
* If a request is associated with this buffer, then
* call buf_request_cancel() to give the driver to complete()
@@ -2223,10 +2276,12 @@ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
buffer = (off >> PLANE_INDEX_SHIFT) & BUFFER_INDEX_MASK;
*plane = (off >> PAGE_SHIFT) & PLANE_INDEX_MASK;
- if (buffer >= q->num_buffers || *plane >= q->bufs[buffer]->num_planes)
+ *vb = vb2_get_buffer(q, buffer);
+ if (!*vb)
+ return -EINVAL;
+ if (*plane >= (*vb)->num_planes)
return -EINVAL;
- *vb = q->bufs[buffer];
return 0;
}
@@ -2614,6 +2669,7 @@ struct vb2_fileio_data {
static int __vb2_init_fileio(struct vb2_queue *q, int read)
{
struct vb2_fileio_data *fileio;
+ struct vb2_buffer *vb;
int i, ret;
unsigned int count = 0;
@@ -2664,11 +2720,18 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
if (ret)
goto err_kfree;
+ /*
+ * Userspace can never add or delete buffers later, so there
+ * will never be holes. It is safe to assume that vb2_get_buffer(q, 0)
+ * will always return a valid vb pointer
+ */
+ vb = vb2_get_buffer(q, 0);
+
/*
* Check if plane_count is correct
* (multiplane buffers are not supported).
*/
- if (q->bufs[0]->num_planes != 1) {
+ if (vb->num_planes != 1) {
ret = -EBUSY;
goto err_reqbufs;
}
@@ -2677,12 +2740,15 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
* Get kernel address of each buffer.
*/
for (i = 0; i < q->num_buffers; i++) {
- fileio->bufs[i].vaddr = vb2_plane_vaddr(q->bufs[i], 0);
+ vb = vb2_get_buffer(q, i);
+ WARN_ON_ONCE(!vb);
+
+ fileio->bufs[i].vaddr = vb2_plane_vaddr(vb, 0);
if (fileio->bufs[i].vaddr == NULL) {
ret = -EINVAL;
goto err_reqbufs;
}
- fileio->bufs[i].size = vb2_plane_size(q->bufs[i], 0);
+ fileio->bufs[i].size = vb2_plane_size(vb, 0);
}
/*
@@ -2810,15 +2876,17 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
fileio->cur_index = index;
buf = &fileio->bufs[index];
- b = q->bufs[index];
+
+ /* b can never be NULL when using fileio. */
+ b = vb2_get_buffer(q, index);
/*
* Get number of bytes filled by the driver
*/
buf->pos = 0;
buf->queued = 0;
- buf->size = read ? vb2_get_plane_payload(q->bufs[index], 0)
- : vb2_plane_size(q->bufs[index], 0);
+ buf->size = read ? vb2_get_plane_payload(b, 0)
+ : vb2_plane_size(b, 0);
/* Compensate for data_offset on read in the multiplanar case. */
if (is_multiplanar && read &&
b->planes[0].data_offset < buf->size) {
@@ -2861,7 +2929,8 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
* Queue next buffer if required.
*/
if (buf->pos == buf->size || (!read && fileio->write_immediately)) {
- struct vb2_buffer *b = q->bufs[index];
+ /* b can never be NULL when using fileio. */
+ struct vb2_buffer *b = vb2_get_buffer(q, index);
/*
* Check if this is the last buffer to read.
@@ -2888,7 +2957,7 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
*/
buf->pos = 0;
buf->queued = 1;
- buf->size = vb2_plane_size(q->bufs[index], 0);
+ buf->size = vb2_plane_size(b, 0);
fileio->q_count += 1;
/*
* If we are queuing up buffers for the first time, then
@@ -2959,7 +3028,9 @@ static int vb2_thread(void *data)
* Call vb2_dqbuf to get buffer back.
*/
if (prequeue) {
- vb = q->bufs[index++];
+ vb = vb2_get_buffer(q, index++);
+ if (!vb)
+ continue;
prequeue--;
} else {
call_void_qop(q, wait_finish, q);
@@ -2968,7 +3039,7 @@ static int vb2_thread(void *data)
call_void_qop(q, wait_prepare, q);
dprintk(q, 5, "file io: vb2_dqbuf result: %d\n", ret);
if (!ret)
- vb = q->bufs[index];
+ vb = vb2_get_buffer(q, index);
}
if (ret || threadio->stop)
break;
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 697c8a9f98cd..3395e702ad1f 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -383,9 +383,9 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md
return -EINVAL;
}
- if (q->bufs[b->index] == NULL) {
- /* Should never happen */
- dprintk(q, 1, "%s: buffer is NULL\n", opname);
+ vb = vb2_get_buffer(q, b->index);
+ if (!vb) {
+ dprintk(q, 1, "%s: buffer %u is NULL\n", opname, b->index);
return -EINVAL;
}
@@ -394,7 +394,6 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md
return -EINVAL;
}
- vb = q->bufs[b->index];
vbuf = to_vb2_v4l2_buffer(vb);
ret = __verify_planes_array(vb, b);
if (ret)
@@ -628,11 +627,22 @@ static const struct vb2_buf_ops v4l2_buf_ops = {
struct vb2_buffer *vb2_find_buffer(struct vb2_queue *q, u64 timestamp)
{
unsigned int i;
+ struct vb2_buffer *vb2;
- for (i = 0; i < q->num_buffers; i++)
- if (q->bufs[i]->copied_timestamp &&
- q->bufs[i]->timestamp == timestamp)
- return vb2_get_buffer(q, i);
+ /*
+ * This loop doesn't scale if there is a really large number of buffers.
+ * Maybe something more efficient will be needed in this case.
+ */
+ for (i = 0; i < q->num_buffers; i++) {
+ vb2 = vb2_get_buffer(q, i);
+
+ if (!vb2)
+ continue;
+
+ if (vb2->copied_timestamp &&
+ vb2->timestamp == timestamp)
+ return vb2;
+ }
return NULL;
}
EXPORT_SYMBOL_GPL(vb2_find_buffer);
@@ -660,11 +670,12 @@ int vb2_querybuf(struct vb2_queue *q, struct v4l2_buffer *b)
return -EINVAL;
}
- if (b->index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
+ vb = vb2_get_buffer(q, b->index);
+ if (!vb) {
+ dprintk(q, 1, "can't find the requested buffer %u\n", b->index);
return -EINVAL;
}
- vb = q->bufs[b->index];
+
ret = __verify_planes_array(vb, b);
if (!ret)
vb2_core_querybuf(q, vb, b);
@@ -734,11 +745,11 @@ int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
if (b->flags & V4L2_BUF_FLAG_REQUEST_FD)
return -EINVAL;
- if (b->index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
+ vb = vb2_get_buffer(q, b->index);
+ if (!vb) {
+ dprintk(q, 1, "can't find the requested buffer %u\n", b->index);
return -EINVAL;
}
- vb = q->bufs[b->index];
ret = vb2_queue_or_prepare_buf(q, mdev, b, true, NULL);
@@ -822,7 +833,11 @@ int vb2_qbuf(struct vb2_queue *q, struct media_device *mdev,
dprintk(q, 1, "buffer index out of range\n");
return -EINVAL;
}
- vb = q->bufs[b->index];
+ vb = vb2_get_buffer(q, b->index);
+ if (!vb) {
+ dprintk(q, 1, "can't find the requested buffer %u\n", b->index);
+ return -EINVAL;
+ }
ret = vb2_queue_or_prepare_buf(q, mdev, b, false, &req);
if (ret)
@@ -893,7 +908,11 @@ int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb)
dprintk(q, 1, "buffer index out of range\n");
return -EINVAL;
}
- vb = q->bufs[eb->index];
+ vb = vb2_get_buffer(q, eb->index);
+ if (!vb) {
+ dprintk(q, 1, "can't find the requested buffer %u\n", eb->index);
+ return -EINVAL;
+ }
return vb2_core_expbuf(q, &eb->fd, eb->type, vb,
eb->plane, eb->flags);
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 12/53] media: videobuf2: Be more flexible on the number of queue stored buffers
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Add 'max_num_buffers' field in vb2_queue struct to let drivers decide
how many buffers could be stored in a queue.
This require 'bufs' array to be allocated at queue init time and freed
when releasing the queue.
By default VB2_MAX_FRAME remains the limit.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---
.../media/common/videobuf2/videobuf2-core.c | 41 +++++++++++++++----
.../media/common/videobuf2/videobuf2-v4l2.c | 4 +-
include/media/videobuf2-core.h | 4 +-
3 files changed, 37 insertions(+), 12 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 17b0dafacaab..023e00aa4848 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -415,7 +415,7 @@ static void init_buffer_cache_hints(struct vb2_queue *q, struct vb2_buffer *vb)
*/
static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, unsigned int index)
{
- WARN_ON(index >= VB2_MAX_FRAME || q->bufs[index]);
+ WARN_ON(index >= q->max_num_buffers || q->bufs[index]);
q->bufs[index] = vb;
vb->index = index;
@@ -447,9 +447,9 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
struct vb2_buffer *vb;
int ret;
- /* Ensure that q->num_buffers+num_buffers is below VB2_MAX_FRAME */
+ /* Ensure that the number of already queue + num_buffers is below q->max_num_buffers */
num_buffers = min_t(unsigned int, num_buffers,
- VB2_MAX_FRAME - q->num_buffers);
+ q->max_num_buffers - q->num_buffers);
for (buffer = 0; buffer < num_buffers; ++buffer) {
/* Allocate vb2 buffer structures */
@@ -808,7 +808,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
unsigned int i;
- int ret;
+ int ret = 0;
if (q->streaming) {
dprintk(q, 1, "streaming active\n");
@@ -852,17 +852,22 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
/*
* Make sure the requested values and current defaults are sane.
*/
- WARN_ON(q->min_buffers_needed > VB2_MAX_FRAME);
num_buffers = max_t(unsigned int, *count, q->min_buffers_needed);
- num_buffers = min_t(unsigned int, num_buffers, VB2_MAX_FRAME);
+ num_buffers = min_t(unsigned int, num_buffers, q->max_num_buffers);
memset(q->alloc_devs, 0, sizeof(q->alloc_devs));
/*
* Set this now to ensure that drivers see the correct q->memory value
* in the queue_setup op.
*/
mutex_lock(&q->mmap_lock);
+ if (!q->bufs)
+ q->bufs = kcalloc(q->max_num_buffers, sizeof(*q->bufs), GFP_KERNEL);
+ if (!q->bufs)
+ ret = -ENOMEM;
q->memory = memory;
mutex_unlock(&q->mmap_lock);
+ if (ret)
+ return ret;
set_queue_coherency(q, non_coherent_mem);
/*
@@ -968,9 +973,9 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
bool no_previous_buffers = !q->num_buffers;
- int ret;
+ int ret = 0;
- if (q->num_buffers == VB2_MAX_FRAME) {
+ if (q->num_buffers == q->max_num_buffers) {
dprintk(q, 1, "maximum number of buffers already allocated\n");
return -ENOBUFS;
}
@@ -987,7 +992,13 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
*/
mutex_lock(&q->mmap_lock);
q->memory = memory;
+ if (!q->bufs)
+ q->bufs = kcalloc(q->max_num_buffers, sizeof(*q->bufs), GFP_KERNEL);
+ if (!q->bufs)
+ ret = -ENOMEM;
mutex_unlock(&q->mmap_lock);
+ if (ret)
+ return ret;
q->waiting_for_buffers = !q->is_output;
set_queue_coherency(q, non_coherent_mem);
} else {
@@ -999,7 +1010,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
return -EINVAL;
}
- num_buffers = min(*count, VB2_MAX_FRAME - q->num_buffers);
+ num_buffers = min(*count, q->max_num_buffers - q->num_buffers);
if (requested_planes && requested_sizes) {
num_planes = requested_planes;
@@ -2467,6 +2478,10 @@ int vb2_core_queue_init(struct vb2_queue *q)
WARN_ON(!q->ops->buf_queue))
return -EINVAL;
+ if (WARN_ON(q->max_num_buffers > BUFFER_INDEX_MASK + 1) ||
+ WARN_ON(q->min_buffers_needed > q->max_num_buffers))
+ return -EINVAL;
+
if (WARN_ON(q->requires_requests && !q->supports_requests))
return -EINVAL;
@@ -2489,6 +2504,12 @@ int vb2_core_queue_init(struct vb2_queue *q)
q->memory = VB2_MEMORY_UNKNOWN;
+ if (!q->max_num_buffers)
+ q->max_num_buffers = VB2_MAX_FRAME;
+
+ /* The maximum is limited by offset cookie encoding pattern */
+ q->max_num_buffers = min_t(unsigned int, q->max_num_buffers, BUFFER_INDEX_MASK + 1);
+
if (q->buf_struct_size == 0)
q->buf_struct_size = sizeof(struct vb2_buffer);
@@ -2513,6 +2534,8 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_queue_cancel(q);
mutex_lock(&q->mmap_lock);
__vb2_queue_free(q, q->num_buffers);
+ kfree(q->bufs);
+ q->bufs = NULL;
mutex_unlock(&q->mmap_lock);
}
EXPORT_SYMBOL_GPL(vb2_core_queue_release);
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 3395e702ad1f..278ea1107b01 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -1156,7 +1156,7 @@ int _vb2_fop_release(struct file *file, struct mutex *lock)
if (lock)
mutex_lock(lock);
- if (file->private_data == vdev->queue->owner) {
+ if (!vdev->queue->owner || file->private_data == vdev->queue->owner) {
vb2_queue_release(vdev->queue);
vdev->queue->owner = NULL;
}
@@ -1284,7 +1284,7 @@ void vb2_video_unregister_device(struct video_device *vdev)
*/
get_device(&vdev->dev);
video_unregister_device(vdev);
- if (vdev->queue && vdev->queue->owner) {
+ if (vdev->queue) {
struct mutex *lock = vdev->queue->lock ?
vdev->queue->lock : vdev->lock;
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index cd3ff1cd759d..1d6d68e8a711 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -558,6 +558,7 @@ struct vb2_buf_ops {
* @dma_dir: DMA mapping direction.
* @bufs: videobuf2 buffer structures
* @num_buffers: number of allocated/used buffers
+ * @max_num_buffers: upper limit of number of allocated/used buffers
* @queued_list: list of buffers currently queued from userspace
* @queued_count: number of buffers queued and ready for streaming.
* @owned_by_drv_count: number of buffers owned by the driver
@@ -619,8 +620,9 @@ struct vb2_queue {
struct mutex mmap_lock;
unsigned int memory;
enum dma_data_direction dma_dir;
- struct vb2_buffer *bufs[VB2_MAX_FRAME];
+ struct vb2_buffer **bufs;
unsigned int num_buffers;
+ unsigned int max_num_buffers;
struct list_head queued_list;
unsigned int queued_count;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 12/53] media: videobuf2: Be more flexible on the number of queue stored buffers
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Add 'max_num_buffers' field in vb2_queue struct to let drivers decide
how many buffers could be stored in a queue.
This require 'bufs' array to be allocated at queue init time and freed
when releasing the queue.
By default VB2_MAX_FRAME remains the limit.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---
.../media/common/videobuf2/videobuf2-core.c | 41 +++++++++++++++----
.../media/common/videobuf2/videobuf2-v4l2.c | 4 +-
include/media/videobuf2-core.h | 4 +-
3 files changed, 37 insertions(+), 12 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 17b0dafacaab..023e00aa4848 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -415,7 +415,7 @@ static void init_buffer_cache_hints(struct vb2_queue *q, struct vb2_buffer *vb)
*/
static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, unsigned int index)
{
- WARN_ON(index >= VB2_MAX_FRAME || q->bufs[index]);
+ WARN_ON(index >= q->max_num_buffers || q->bufs[index]);
q->bufs[index] = vb;
vb->index = index;
@@ -447,9 +447,9 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
struct vb2_buffer *vb;
int ret;
- /* Ensure that q->num_buffers+num_buffers is below VB2_MAX_FRAME */
+ /* Ensure that the number of already queue + num_buffers is below q->max_num_buffers */
num_buffers = min_t(unsigned int, num_buffers,
- VB2_MAX_FRAME - q->num_buffers);
+ q->max_num_buffers - q->num_buffers);
for (buffer = 0; buffer < num_buffers; ++buffer) {
/* Allocate vb2 buffer structures */
@@ -808,7 +808,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
unsigned int i;
- int ret;
+ int ret = 0;
if (q->streaming) {
dprintk(q, 1, "streaming active\n");
@@ -852,17 +852,22 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
/*
* Make sure the requested values and current defaults are sane.
*/
- WARN_ON(q->min_buffers_needed > VB2_MAX_FRAME);
num_buffers = max_t(unsigned int, *count, q->min_buffers_needed);
- num_buffers = min_t(unsigned int, num_buffers, VB2_MAX_FRAME);
+ num_buffers = min_t(unsigned int, num_buffers, q->max_num_buffers);
memset(q->alloc_devs, 0, sizeof(q->alloc_devs));
/*
* Set this now to ensure that drivers see the correct q->memory value
* in the queue_setup op.
*/
mutex_lock(&q->mmap_lock);
+ if (!q->bufs)
+ q->bufs = kcalloc(q->max_num_buffers, sizeof(*q->bufs), GFP_KERNEL);
+ if (!q->bufs)
+ ret = -ENOMEM;
q->memory = memory;
mutex_unlock(&q->mmap_lock);
+ if (ret)
+ return ret;
set_queue_coherency(q, non_coherent_mem);
/*
@@ -968,9 +973,9 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
bool no_previous_buffers = !q->num_buffers;
- int ret;
+ int ret = 0;
- if (q->num_buffers == VB2_MAX_FRAME) {
+ if (q->num_buffers == q->max_num_buffers) {
dprintk(q, 1, "maximum number of buffers already allocated\n");
return -ENOBUFS;
}
@@ -987,7 +992,13 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
*/
mutex_lock(&q->mmap_lock);
q->memory = memory;
+ if (!q->bufs)
+ q->bufs = kcalloc(q->max_num_buffers, sizeof(*q->bufs), GFP_KERNEL);
+ if (!q->bufs)
+ ret = -ENOMEM;
mutex_unlock(&q->mmap_lock);
+ if (ret)
+ return ret;
q->waiting_for_buffers = !q->is_output;
set_queue_coherency(q, non_coherent_mem);
} else {
@@ -999,7 +1010,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
return -EINVAL;
}
- num_buffers = min(*count, VB2_MAX_FRAME - q->num_buffers);
+ num_buffers = min(*count, q->max_num_buffers - q->num_buffers);
if (requested_planes && requested_sizes) {
num_planes = requested_planes;
@@ -2467,6 +2478,10 @@ int vb2_core_queue_init(struct vb2_queue *q)
WARN_ON(!q->ops->buf_queue))
return -EINVAL;
+ if (WARN_ON(q->max_num_buffers > BUFFER_INDEX_MASK + 1) ||
+ WARN_ON(q->min_buffers_needed > q->max_num_buffers))
+ return -EINVAL;
+
if (WARN_ON(q->requires_requests && !q->supports_requests))
return -EINVAL;
@@ -2489,6 +2504,12 @@ int vb2_core_queue_init(struct vb2_queue *q)
q->memory = VB2_MEMORY_UNKNOWN;
+ if (!q->max_num_buffers)
+ q->max_num_buffers = VB2_MAX_FRAME;
+
+ /* The maximum is limited by offset cookie encoding pattern */
+ q->max_num_buffers = min_t(unsigned int, q->max_num_buffers, BUFFER_INDEX_MASK + 1);
+
if (q->buf_struct_size == 0)
q->buf_struct_size = sizeof(struct vb2_buffer);
@@ -2513,6 +2534,8 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_queue_cancel(q);
mutex_lock(&q->mmap_lock);
__vb2_queue_free(q, q->num_buffers);
+ kfree(q->bufs);
+ q->bufs = NULL;
mutex_unlock(&q->mmap_lock);
}
EXPORT_SYMBOL_GPL(vb2_core_queue_release);
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 3395e702ad1f..278ea1107b01 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -1156,7 +1156,7 @@ int _vb2_fop_release(struct file *file, struct mutex *lock)
if (lock)
mutex_lock(lock);
- if (file->private_data == vdev->queue->owner) {
+ if (!vdev->queue->owner || file->private_data == vdev->queue->owner) {
vb2_queue_release(vdev->queue);
vdev->queue->owner = NULL;
}
@@ -1284,7 +1284,7 @@ void vb2_video_unregister_device(struct video_device *vdev)
*/
get_device(&vdev->dev);
video_unregister_device(vdev);
- if (vdev->queue && vdev->queue->owner) {
+ if (vdev->queue) {
struct mutex *lock = vdev->queue->lock ?
vdev->queue->lock : vdev->lock;
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index cd3ff1cd759d..1d6d68e8a711 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -558,6 +558,7 @@ struct vb2_buf_ops {
* @dma_dir: DMA mapping direction.
* @bufs: videobuf2 buffer structures
* @num_buffers: number of allocated/used buffers
+ * @max_num_buffers: upper limit of number of allocated/used buffers
* @queued_list: list of buffers currently queued from userspace
* @queued_count: number of buffers queued and ready for streaming.
* @owned_by_drv_count: number of buffers owned by the driver
@@ -619,8 +620,9 @@ struct vb2_queue {
struct mutex mmap_lock;
unsigned int memory;
enum dma_data_direction dma_dir;
- struct vb2_buffer *bufs[VB2_MAX_FRAME];
+ struct vb2_buffer **bufs;
unsigned int num_buffers;
+ unsigned int max_num_buffers;
struct list_head queued_list;
unsigned int queued_count;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 12/53] media: videobuf2: Be more flexible on the number of queue stored buffers
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Add 'max_num_buffers' field in vb2_queue struct to let drivers decide
how many buffers could be stored in a queue.
This require 'bufs' array to be allocated at queue init time and freed
when releasing the queue.
By default VB2_MAX_FRAME remains the limit.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---
.../media/common/videobuf2/videobuf2-core.c | 41 +++++++++++++++----
.../media/common/videobuf2/videobuf2-v4l2.c | 4 +-
include/media/videobuf2-core.h | 4 +-
3 files changed, 37 insertions(+), 12 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 17b0dafacaab..023e00aa4848 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -415,7 +415,7 @@ static void init_buffer_cache_hints(struct vb2_queue *q, struct vb2_buffer *vb)
*/
static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, unsigned int index)
{
- WARN_ON(index >= VB2_MAX_FRAME || q->bufs[index]);
+ WARN_ON(index >= q->max_num_buffers || q->bufs[index]);
q->bufs[index] = vb;
vb->index = index;
@@ -447,9 +447,9 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
struct vb2_buffer *vb;
int ret;
- /* Ensure that q->num_buffers+num_buffers is below VB2_MAX_FRAME */
+ /* Ensure that the number of already queue + num_buffers is below q->max_num_buffers */
num_buffers = min_t(unsigned int, num_buffers,
- VB2_MAX_FRAME - q->num_buffers);
+ q->max_num_buffers - q->num_buffers);
for (buffer = 0; buffer < num_buffers; ++buffer) {
/* Allocate vb2 buffer structures */
@@ -808,7 +808,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
unsigned int i;
- int ret;
+ int ret = 0;
if (q->streaming) {
dprintk(q, 1, "streaming active\n");
@@ -852,17 +852,22 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
/*
* Make sure the requested values and current defaults are sane.
*/
- WARN_ON(q->min_buffers_needed > VB2_MAX_FRAME);
num_buffers = max_t(unsigned int, *count, q->min_buffers_needed);
- num_buffers = min_t(unsigned int, num_buffers, VB2_MAX_FRAME);
+ num_buffers = min_t(unsigned int, num_buffers, q->max_num_buffers);
memset(q->alloc_devs, 0, sizeof(q->alloc_devs));
/*
* Set this now to ensure that drivers see the correct q->memory value
* in the queue_setup op.
*/
mutex_lock(&q->mmap_lock);
+ if (!q->bufs)
+ q->bufs = kcalloc(q->max_num_buffers, sizeof(*q->bufs), GFP_KERNEL);
+ if (!q->bufs)
+ ret = -ENOMEM;
q->memory = memory;
mutex_unlock(&q->mmap_lock);
+ if (ret)
+ return ret;
set_queue_coherency(q, non_coherent_mem);
/*
@@ -968,9 +973,9 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
bool no_previous_buffers = !q->num_buffers;
- int ret;
+ int ret = 0;
- if (q->num_buffers == VB2_MAX_FRAME) {
+ if (q->num_buffers == q->max_num_buffers) {
dprintk(q, 1, "maximum number of buffers already allocated\n");
return -ENOBUFS;
}
@@ -987,7 +992,13 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
*/
mutex_lock(&q->mmap_lock);
q->memory = memory;
+ if (!q->bufs)
+ q->bufs = kcalloc(q->max_num_buffers, sizeof(*q->bufs), GFP_KERNEL);
+ if (!q->bufs)
+ ret = -ENOMEM;
mutex_unlock(&q->mmap_lock);
+ if (ret)
+ return ret;
q->waiting_for_buffers = !q->is_output;
set_queue_coherency(q, non_coherent_mem);
} else {
@@ -999,7 +1010,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
return -EINVAL;
}
- num_buffers = min(*count, VB2_MAX_FRAME - q->num_buffers);
+ num_buffers = min(*count, q->max_num_buffers - q->num_buffers);
if (requested_planes && requested_sizes) {
num_planes = requested_planes;
@@ -2467,6 +2478,10 @@ int vb2_core_queue_init(struct vb2_queue *q)
WARN_ON(!q->ops->buf_queue))
return -EINVAL;
+ if (WARN_ON(q->max_num_buffers > BUFFER_INDEX_MASK + 1) ||
+ WARN_ON(q->min_buffers_needed > q->max_num_buffers))
+ return -EINVAL;
+
if (WARN_ON(q->requires_requests && !q->supports_requests))
return -EINVAL;
@@ -2489,6 +2504,12 @@ int vb2_core_queue_init(struct vb2_queue *q)
q->memory = VB2_MEMORY_UNKNOWN;
+ if (!q->max_num_buffers)
+ q->max_num_buffers = VB2_MAX_FRAME;
+
+ /* The maximum is limited by offset cookie encoding pattern */
+ q->max_num_buffers = min_t(unsigned int, q->max_num_buffers, BUFFER_INDEX_MASK + 1);
+
if (q->buf_struct_size == 0)
q->buf_struct_size = sizeof(struct vb2_buffer);
@@ -2513,6 +2534,8 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_queue_cancel(q);
mutex_lock(&q->mmap_lock);
__vb2_queue_free(q, q->num_buffers);
+ kfree(q->bufs);
+ q->bufs = NULL;
mutex_unlock(&q->mmap_lock);
}
EXPORT_SYMBOL_GPL(vb2_core_queue_release);
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 3395e702ad1f..278ea1107b01 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -1156,7 +1156,7 @@ int _vb2_fop_release(struct file *file, struct mutex *lock)
if (lock)
mutex_lock(lock);
- if (file->private_data == vdev->queue->owner) {
+ if (!vdev->queue->owner || file->private_data == vdev->queue->owner) {
vb2_queue_release(vdev->queue);
vdev->queue->owner = NULL;
}
@@ -1284,7 +1284,7 @@ void vb2_video_unregister_device(struct video_device *vdev)
*/
get_device(&vdev->dev);
video_unregister_device(vdev);
- if (vdev->queue && vdev->queue->owner) {
+ if (vdev->queue) {
struct mutex *lock = vdev->queue->lock ?
vdev->queue->lock : vdev->lock;
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index cd3ff1cd759d..1d6d68e8a711 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -558,6 +558,7 @@ struct vb2_buf_ops {
* @dma_dir: DMA mapping direction.
* @bufs: videobuf2 buffer structures
* @num_buffers: number of allocated/used buffers
+ * @max_num_buffers: upper limit of number of allocated/used buffers
* @queued_list: list of buffers currently queued from userspace
* @queued_count: number of buffers queued and ready for streaming.
* @owned_by_drv_count: number of buffers owned by the driver
@@ -619,8 +620,9 @@ struct vb2_queue {
struct mutex mmap_lock;
unsigned int memory;
enum dma_data_direction dma_dir;
- struct vb2_buffer *bufs[VB2_MAX_FRAME];
+ struct vb2_buffer **bufs;
unsigned int num_buffers;
+ unsigned int max_num_buffers;
struct list_head queued_list;
unsigned int queued_count;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 13/53] media: Report the maximum possible number of buffers for the queue
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use one of the struct v4l2_create_buffers reserved bytes to report
the maximum possible number of buffers for the queue.
V4l2 framework set V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS flags in queue
capabilities so userland can know when the field is valid.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../userspace-api/media/v4l/vidioc-create-bufs.rst | 8 ++++++--
Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1 +
drivers/media/common/videobuf2/videobuf2-v4l2.c | 9 +++++++--
drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++--
include/uapi/linux/videodev2.h | 7 ++++++-
5 files changed, 22 insertions(+), 7 deletions(-)
diff --git a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
index a048a9f6b7b6..1a46549e7462 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
@@ -116,9 +116,13 @@ than the number requested.
- ``flags``
- Specifies additional buffer management attributes.
See :ref:`memory-flags`.
-
* - __u32
- - ``reserved``\ [6]
+ - ``max_buffers``
+ - If V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
+ this field indicate the maximum possible number of buffers
+ for this queue.
+ * - __u32
+ - ``reserved``\ [5]
- A place holder for future extensions. Drivers and applications
must set the array to zero.
diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
index 099fa6695167..0395187e1a5a 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
@@ -120,6 +120,7 @@ aborting or finishing any DMA in progress, an implicit
.. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
.. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
.. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
+.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
.. raw:: latex
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 278ea1107b01..655133f1ae2b 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -686,6 +686,7 @@ EXPORT_SYMBOL(vb2_querybuf);
static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
{
*caps = V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS;
+ *caps |= V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS;
if (q->io_modes & VB2_MMAP)
*caps |= V4L2_BUF_CAP_SUPPORTS_MMAP;
if (q->io_modes & VB2_USERPTR)
@@ -767,9 +768,13 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
fill_buf_caps(q, &create->capabilities);
validate_memory_flags(q, create->memory, &create->flags);
- create->index = q->num_buffers;
- if (create->count == 0)
+
+ create->max_buffers = q->max_num_buffers;
+
+ if (create->count == 0) {
+ create->index = vb2_get_num_buffers(q);
return ret != -EBUSY ? ret : 0;
+ }
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index f4d9d6279094..700db197e371 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -483,9 +483,9 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
{
const struct v4l2_create_buffers *p = arg;
- pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, ",
+ pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, max buffers=%u",
p->index, p->count, prt_names(p->memory, v4l2_memory_names),
- p->capabilities);
+ p->capabilities, p->max_buffers);
v4l_print_format(&p->format, write_only);
}
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 78260e5d9985..b0dbb1be728c 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1034,6 +1034,7 @@ struct v4l2_requestbuffers {
#define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
#define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
#define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
+#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
/**
* struct v4l2_plane - plane info for multi-planar buffers
@@ -2604,6 +2605,9 @@ struct v4l2_dbg_chip_info {
* @flags: additional buffer management attributes (ignored unless the
* queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
* and configured for MMAP streaming I/O).
+ * @max_buffers: if V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
+ * this field indicate the maximum possible number of buffers
+ * for this queue.
* @reserved: future extensions
*/
struct v4l2_create_buffers {
@@ -2613,7 +2617,8 @@ struct v4l2_create_buffers {
struct v4l2_format format;
__u32 capabilities;
__u32 flags;
- __u32 reserved[6];
+ __u32 max_buffers;
+ __u32 reserved[5];
};
/*
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 13/53] media: Report the maximum possible number of buffers for the queue
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use one of the struct v4l2_create_buffers reserved bytes to report
the maximum possible number of buffers for the queue.
V4l2 framework set V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS flags in queue
capabilities so userland can know when the field is valid.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../userspace-api/media/v4l/vidioc-create-bufs.rst | 8 ++++++--
Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1 +
drivers/media/common/videobuf2/videobuf2-v4l2.c | 9 +++++++--
drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++--
include/uapi/linux/videodev2.h | 7 ++++++-
5 files changed, 22 insertions(+), 7 deletions(-)
diff --git a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
index a048a9f6b7b6..1a46549e7462 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
@@ -116,9 +116,13 @@ than the number requested.
- ``flags``
- Specifies additional buffer management attributes.
See :ref:`memory-flags`.
-
* - __u32
- - ``reserved``\ [6]
+ - ``max_buffers``
+ - If V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
+ this field indicate the maximum possible number of buffers
+ for this queue.
+ * - __u32
+ - ``reserved``\ [5]
- A place holder for future extensions. Drivers and applications
must set the array to zero.
diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
index 099fa6695167..0395187e1a5a 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
@@ -120,6 +120,7 @@ aborting or finishing any DMA in progress, an implicit
.. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
.. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
.. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
+.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
.. raw:: latex
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 278ea1107b01..655133f1ae2b 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -686,6 +686,7 @@ EXPORT_SYMBOL(vb2_querybuf);
static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
{
*caps = V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS;
+ *caps |= V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS;
if (q->io_modes & VB2_MMAP)
*caps |= V4L2_BUF_CAP_SUPPORTS_MMAP;
if (q->io_modes & VB2_USERPTR)
@@ -767,9 +768,13 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
fill_buf_caps(q, &create->capabilities);
validate_memory_flags(q, create->memory, &create->flags);
- create->index = q->num_buffers;
- if (create->count == 0)
+
+ create->max_buffers = q->max_num_buffers;
+
+ if (create->count == 0) {
+ create->index = vb2_get_num_buffers(q);
return ret != -EBUSY ? ret : 0;
+ }
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index f4d9d6279094..700db197e371 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -483,9 +483,9 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
{
const struct v4l2_create_buffers *p = arg;
- pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, ",
+ pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, max buffers=%u",
p->index, p->count, prt_names(p->memory, v4l2_memory_names),
- p->capabilities);
+ p->capabilities, p->max_buffers);
v4l_print_format(&p->format, write_only);
}
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 78260e5d9985..b0dbb1be728c 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1034,6 +1034,7 @@ struct v4l2_requestbuffers {
#define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
#define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
#define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
+#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
/**
* struct v4l2_plane - plane info for multi-planar buffers
@@ -2604,6 +2605,9 @@ struct v4l2_dbg_chip_info {
* @flags: additional buffer management attributes (ignored unless the
* queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
* and configured for MMAP streaming I/O).
+ * @max_buffers: if V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
+ * this field indicate the maximum possible number of buffers
+ * for this queue.
* @reserved: future extensions
*/
struct v4l2_create_buffers {
@@ -2613,7 +2617,8 @@ struct v4l2_create_buffers {
struct v4l2_format format;
__u32 capabilities;
__u32 flags;
- __u32 reserved[6];
+ __u32 max_buffers;
+ __u32 reserved[5];
};
/*
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 13/53] media: Report the maximum possible number of buffers for the queue
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use one of the struct v4l2_create_buffers reserved bytes to report
the maximum possible number of buffers for the queue.
V4l2 framework set V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS flags in queue
capabilities so userland can know when the field is valid.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../userspace-api/media/v4l/vidioc-create-bufs.rst | 8 ++++++--
Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1 +
drivers/media/common/videobuf2/videobuf2-v4l2.c | 9 +++++++--
drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++--
include/uapi/linux/videodev2.h | 7 ++++++-
5 files changed, 22 insertions(+), 7 deletions(-)
diff --git a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
index a048a9f6b7b6..1a46549e7462 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
@@ -116,9 +116,13 @@ than the number requested.
- ``flags``
- Specifies additional buffer management attributes.
See :ref:`memory-flags`.
-
* - __u32
- - ``reserved``\ [6]
+ - ``max_buffers``
+ - If V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
+ this field indicate the maximum possible number of buffers
+ for this queue.
+ * - __u32
+ - ``reserved``\ [5]
- A place holder for future extensions. Drivers and applications
must set the array to zero.
diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
index 099fa6695167..0395187e1a5a 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
@@ -120,6 +120,7 @@ aborting or finishing any DMA in progress, an implicit
.. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
.. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
.. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
+.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
.. raw:: latex
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 278ea1107b01..655133f1ae2b 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -686,6 +686,7 @@ EXPORT_SYMBOL(vb2_querybuf);
static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
{
*caps = V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS;
+ *caps |= V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS;
if (q->io_modes & VB2_MMAP)
*caps |= V4L2_BUF_CAP_SUPPORTS_MMAP;
if (q->io_modes & VB2_USERPTR)
@@ -767,9 +768,13 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
fill_buf_caps(q, &create->capabilities);
validate_memory_flags(q, create->memory, &create->flags);
- create->index = q->num_buffers;
- if (create->count == 0)
+
+ create->max_buffers = q->max_num_buffers;
+
+ if (create->count == 0) {
+ create->index = vb2_get_num_buffers(q);
return ret != -EBUSY ? ret : 0;
+ }
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index f4d9d6279094..700db197e371 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -483,9 +483,9 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
{
const struct v4l2_create_buffers *p = arg;
- pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, ",
+ pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, max buffers=%u",
p->index, p->count, prt_names(p->memory, v4l2_memory_names),
- p->capabilities);
+ p->capabilities, p->max_buffers);
v4l_print_format(&p->format, write_only);
}
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 78260e5d9985..b0dbb1be728c 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1034,6 +1034,7 @@ struct v4l2_requestbuffers {
#define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
#define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
#define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
+#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
/**
* struct v4l2_plane - plane info for multi-planar buffers
@@ -2604,6 +2605,9 @@ struct v4l2_dbg_chip_info {
* @flags: additional buffer management attributes (ignored unless the
* queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
* and configured for MMAP streaming I/O).
+ * @max_buffers: if V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
+ * this field indicate the maximum possible number of buffers
+ * for this queue.
* @reserved: future extensions
*/
struct v4l2_create_buffers {
@@ -2613,7 +2617,8 @@ struct v4l2_create_buffers {
struct v4l2_format format;
__u32 capabilities;
__u32 flags;
- __u32 reserved[6];
+ __u32 max_buffers;
+ __u32 reserved[5];
};
/*
--
2.39.2
_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 14/53] media: test-drivers: vivid: Increase max supported buffers for capture queues
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Change the maximum number of buffers of some capture queues in order
to test max_num_buffers field.
Allow to allocate up to:
- 64 buffers for video capture queue.
- 1024 buffers for sdr capture queue.
- 32768 buffers for vbi capture queue.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/vivid/vivid-core.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/media/test-drivers/vivid/vivid-core.c b/drivers/media/test-drivers/vivid/vivid-core.c
index e95bdccfc18e..58a059140365 100644
--- a/drivers/media/test-drivers/vivid/vivid-core.c
+++ b/drivers/media/test-drivers/vivid/vivid-core.c
@@ -876,6 +876,13 @@ static int vivid_create_queue(struct vivid_dev *dev,
q->type = buf_type;
q->io_modes = VB2_MMAP | VB2_DMABUF;
q->io_modes |= V4L2_TYPE_IS_OUTPUT(buf_type) ? VB2_WRITE : VB2_READ;
+ if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ q->max_num_buffers = 64;
+ if (buf_type == V4L2_BUF_TYPE_SDR_CAPTURE)
+ q->max_num_buffers = 1024;
+ if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE)
+ q->max_num_buffers = 32768;
+
if (allocators[dev->inst] != 1)
q->io_modes |= VB2_USERPTR;
q->drv_priv = dev;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 14/53] media: test-drivers: vivid: Increase max supported buffers for capture queues
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Change the maximum number of buffers of some capture queues in order
to test max_num_buffers field.
Allow to allocate up to:
- 64 buffers for video capture queue.
- 1024 buffers for sdr capture queue.
- 32768 buffers for vbi capture queue.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/vivid/vivid-core.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/media/test-drivers/vivid/vivid-core.c b/drivers/media/test-drivers/vivid/vivid-core.c
index e95bdccfc18e..58a059140365 100644
--- a/drivers/media/test-drivers/vivid/vivid-core.c
+++ b/drivers/media/test-drivers/vivid/vivid-core.c
@@ -876,6 +876,13 @@ static int vivid_create_queue(struct vivid_dev *dev,
q->type = buf_type;
q->io_modes = VB2_MMAP | VB2_DMABUF;
q->io_modes |= V4L2_TYPE_IS_OUTPUT(buf_type) ? VB2_WRITE : VB2_READ;
+ if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ q->max_num_buffers = 64;
+ if (buf_type == V4L2_BUF_TYPE_SDR_CAPTURE)
+ q->max_num_buffers = 1024;
+ if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE)
+ q->max_num_buffers = 32768;
+
if (allocators[dev->inst] != 1)
q->io_modes |= VB2_USERPTR;
q->drv_priv = dev;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 14/53] media: test-drivers: vivid: Increase max supported buffers for capture queues
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Change the maximum number of buffers of some capture queues in order
to test max_num_buffers field.
Allow to allocate up to:
- 64 buffers for video capture queue.
- 1024 buffers for sdr capture queue.
- 32768 buffers for vbi capture queue.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/vivid/vivid-core.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/media/test-drivers/vivid/vivid-core.c b/drivers/media/test-drivers/vivid/vivid-core.c
index e95bdccfc18e..58a059140365 100644
--- a/drivers/media/test-drivers/vivid/vivid-core.c
+++ b/drivers/media/test-drivers/vivid/vivid-core.c
@@ -876,6 +876,13 @@ static int vivid_create_queue(struct vivid_dev *dev,
q->type = buf_type;
q->io_modes = VB2_MMAP | VB2_DMABUF;
q->io_modes |= V4L2_TYPE_IS_OUTPUT(buf_type) ? VB2_WRITE : VB2_READ;
+ if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ q->max_num_buffers = 64;
+ if (buf_type == V4L2_BUF_TYPE_SDR_CAPTURE)
+ q->max_num_buffers = 1024;
+ if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE)
+ q->max_num_buffers = 32768;
+
if (allocators[dev->inst] != 1)
q->io_modes |= VB2_USERPTR;
q->drv_priv = dev;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 15/53] media: test-drivers: vicodec: Increase max supported capture queue buffers
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Allow to allocated up to 64 buffers on capture queue.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/vicodec/vicodec-core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/media/test-drivers/vicodec/vicodec-core.c b/drivers/media/test-drivers/vicodec/vicodec-core.c
index 6f0e20df74e9..69cbe2c094e1 100644
--- a/drivers/media/test-drivers/vicodec/vicodec-core.c
+++ b/drivers/media/test-drivers/vicodec/vicodec-core.c
@@ -1718,6 +1718,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq,
V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
V4L2_BUF_TYPE_VIDEO_CAPTURE);
dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+ dst_vq->max_num_buffers = 64;
dst_vq->drv_priv = ctx;
dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
dst_vq->ops = &vicodec_qops;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 15/53] media: test-drivers: vicodec: Increase max supported capture queue buffers
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Allow to allocated up to 64 buffers on capture queue.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/vicodec/vicodec-core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/media/test-drivers/vicodec/vicodec-core.c b/drivers/media/test-drivers/vicodec/vicodec-core.c
index 6f0e20df74e9..69cbe2c094e1 100644
--- a/drivers/media/test-drivers/vicodec/vicodec-core.c
+++ b/drivers/media/test-drivers/vicodec/vicodec-core.c
@@ -1718,6 +1718,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq,
V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
V4L2_BUF_TYPE_VIDEO_CAPTURE);
dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+ dst_vq->max_num_buffers = 64;
dst_vq->drv_priv = ctx;
dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
dst_vq->ops = &vicodec_qops;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 15/53] media: test-drivers: vicodec: Increase max supported capture queue buffers
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Allow to allocated up to 64 buffers on capture queue.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/vicodec/vicodec-core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/media/test-drivers/vicodec/vicodec-core.c b/drivers/media/test-drivers/vicodec/vicodec-core.c
index 6f0e20df74e9..69cbe2c094e1 100644
--- a/drivers/media/test-drivers/vicodec/vicodec-core.c
+++ b/drivers/media/test-drivers/vicodec/vicodec-core.c
@@ -1718,6 +1718,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq,
V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
V4L2_BUF_TYPE_VIDEO_CAPTURE);
dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+ dst_vq->max_num_buffers = 64;
dst_vq->drv_priv = ctx;
dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
dst_vq->ops = &vicodec_qops;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 16/53] media: verisilicon: Refactor postprocessor to store more buffers
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Since vb2 queue can store more than VB2_MAX_FRAME buffers, the
postprocessor buffer storage must be capable to store more buffers too.
Change static dec_q array to allocated array to be capable to store
up to queue 'max_num_buffers'.
Keep allocating queue 'num_buffers' at queue setup time but also allows
to allocate postprocessors buffers on the fly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/verisilicon/hantro.h | 7 +-
.../media/platform/verisilicon/hantro_drv.c | 4 +-
.../media/platform/verisilicon/hantro_hw.h | 4 +-
.../platform/verisilicon/hantro_postproc.c | 93 +++++++++++++++----
.../media/platform/verisilicon/hantro_v4l2.c | 2 +-
5 files changed, 85 insertions(+), 25 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro.h b/drivers/media/platform/verisilicon/hantro.h
index 77aee9489516..0948b04a9f8d 100644
--- a/drivers/media/platform/verisilicon/hantro.h
+++ b/drivers/media/platform/verisilicon/hantro.h
@@ -469,11 +469,14 @@ hantro_get_dst_buf(struct hantro_ctx *ctx)
bool hantro_needs_postproc(const struct hantro_ctx *ctx,
const struct hantro_fmt *fmt);
+dma_addr_t
+hantro_postproc_get_dec_buf_addr(struct hantro_ctx *ctx, int index);
+
static inline dma_addr_t
hantro_get_dec_buf_addr(struct hantro_ctx *ctx, struct vb2_buffer *vb)
{
if (hantro_needs_postproc(ctx, ctx->vpu_dst_fmt))
- return ctx->postproc.dec_q[vb->index].dma;
+ return hantro_postproc_get_dec_buf_addr(ctx, vb->index);
return vb2_dma_contig_plane_dma_addr(vb, 0);
}
@@ -485,8 +488,8 @@ vb2_to_hantro_decoded_buf(struct vb2_buffer *buf)
void hantro_postproc_disable(struct hantro_ctx *ctx);
void hantro_postproc_enable(struct hantro_ctx *ctx);
+int hantro_postproc_init(struct hantro_ctx *ctx);
void hantro_postproc_free(struct hantro_ctx *ctx);
-int hantro_postproc_alloc(struct hantro_ctx *ctx);
int hanto_postproc_enum_framesizes(struct hantro_ctx *ctx,
struct v4l2_frmsizeenum *fsize);
diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
index 423fc85d79ee..ad6b086f0526 100644
--- a/drivers/media/platform/verisilicon/hantro_drv.c
+++ b/drivers/media/platform/verisilicon/hantro_drv.c
@@ -234,8 +234,10 @@ queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
* The Kernel needs access to the JPEG destination buffer for the
* JPEG encoder to fill in the JPEG headers.
*/
- if (!ctx->is_encoder)
+ if (!ctx->is_encoder) {
dst_vq->dma_attrs |= DMA_ATTR_NO_KERNEL_MAPPING;
+ dst_vq->max_num_buffers = MAX_POSTPROC_BUFFERS;
+ }
dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
diff --git a/drivers/media/platform/verisilicon/hantro_hw.h b/drivers/media/platform/verisilicon/hantro_hw.h
index 7f33f7b07ce4..292a76ef643e 100644
--- a/drivers/media/platform/verisilicon/hantro_hw.h
+++ b/drivers/media/platform/verisilicon/hantro_hw.h
@@ -40,6 +40,8 @@
#define AV1_MAX_FRAME_BUF_COUNT (V4L2_AV1_TOTAL_REFS_PER_FRAME + 1)
+#define MAX_POSTPROC_BUFFERS 64
+
struct hantro_dev;
struct hantro_ctx;
struct hantro_buf;
@@ -336,7 +338,7 @@ struct hantro_av1_dec_hw_ctx {
* @dec_q: References buffers, in decoder format.
*/
struct hantro_postproc_ctx {
- struct hantro_aux_buf dec_q[VB2_MAX_FRAME];
+ struct hantro_aux_buf dec_q[MAX_POSTPROC_BUFFERS];
};
/**
diff --git a/drivers/media/platform/verisilicon/hantro_postproc.c b/drivers/media/platform/verisilicon/hantro_postproc.c
index 0224ff68ab3f..20e8f04a3bef 100644
--- a/drivers/media/platform/verisilicon/hantro_postproc.c
+++ b/drivers/media/platform/verisilicon/hantro_postproc.c
@@ -177,9 +177,11 @@ static int hantro_postproc_g2_enum_framesizes(struct hantro_ctx *ctx,
void hantro_postproc_free(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
+ struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
+ struct vb2_queue *queue = &m2m_ctx->cap_q_ctx.q;
unsigned int i;
- for (i = 0; i < VB2_MAX_FRAME; ++i) {
+ for (i = 0; i < queue->max_num_buffers; ++i) {
struct hantro_aux_buf *priv = &ctx->postproc.dec_q[i];
if (priv->cpu) {
@@ -190,20 +192,17 @@ void hantro_postproc_free(struct hantro_ctx *ctx)
}
}
-int hantro_postproc_alloc(struct hantro_ctx *ctx)
+static unsigned int hantro_postproc_buffer_size(struct hantro_ctx *ctx)
{
- struct hantro_dev *vpu = ctx->dev;
- struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
- struct vb2_queue *cap_queue = &m2m_ctx->cap_q_ctx.q;
- unsigned int num_buffers = cap_queue->num_buffers;
struct v4l2_pix_format_mplane pix_mp;
const struct hantro_fmt *fmt;
- unsigned int i, buf_size;
+ unsigned int buf_size;
/* this should always pick native format */
fmt = hantro_get_default_fmt(ctx, false, ctx->bit_depth, HANTRO_AUTO_POSTPROC);
if (!fmt)
- return -EINVAL;
+ return 0;
+
v4l2_fill_pixfmt_mp(&pix_mp, fmt->fourcc, ctx->src_fmt.width,
ctx->src_fmt.height);
@@ -221,23 +220,77 @@ int hantro_postproc_alloc(struct hantro_ctx *ctx)
buf_size += hantro_av1_mv_size(pix_mp.width,
pix_mp.height);
- for (i = 0; i < num_buffers; ++i) {
- struct hantro_aux_buf *priv = &ctx->postproc.dec_q[i];
+ return buf_size;
+}
+
+static int hantro_postproc_alloc(struct hantro_ctx *ctx, int index)
+{
+ struct hantro_dev *vpu = ctx->dev;
+ struct hantro_aux_buf *priv = &ctx->postproc.dec_q[index];
+ unsigned int buf_size = hantro_postproc_buffer_size(ctx);
+
+ if (!buf_size)
+ return -EINVAL;
+
+ /*
+ * The buffers on this queue are meant as intermediate
+ * buffers for the decoder, so no mapping is needed.
+ */
+ priv->attrs = DMA_ATTR_NO_KERNEL_MAPPING;
+ priv->cpu = dma_alloc_attrs(vpu->dev, buf_size, &priv->dma,
+ GFP_KERNEL, priv->attrs);
+ if (!priv->cpu)
+ return -ENOMEM;
+ priv->size = buf_size;
+
+ return 0;
+}
- /*
- * The buffers on this queue are meant as intermediate
- * buffers for the decoder, so no mapping is needed.
- */
- priv->attrs = DMA_ATTR_NO_KERNEL_MAPPING;
- priv->cpu = dma_alloc_attrs(vpu->dev, buf_size, &priv->dma,
- GFP_KERNEL, priv->attrs);
- if (!priv->cpu)
- return -ENOMEM;
- priv->size = buf_size;
+int hantro_postproc_init(struct hantro_ctx *ctx)
+{
+ struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
+ struct vb2_queue *cap_queue = &m2m_ctx->cap_q_ctx.q;
+ unsigned int num_buffers = cap_queue->num_buffers;
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < num_buffers; i++) {
+ ret = hantro_postproc_alloc(ctx, i);
+ if (ret)
+ return ret;
}
+
return 0;
}
+dma_addr_t
+hantro_postproc_get_dec_buf_addr(struct hantro_ctx *ctx, int index)
+{
+ struct hantro_aux_buf *priv = &ctx->postproc.dec_q[index];
+ unsigned int buf_size = hantro_postproc_buffer_size(ctx);
+ struct hantro_dev *vpu = ctx->dev;
+ int ret;
+
+ if (priv->size < buf_size && priv->cpu) {
+ /* buffer is too small, release it */
+ dma_free_attrs(vpu->dev, priv->size, priv->cpu,
+ priv->dma, priv->attrs);
+ priv->cpu = NULL;
+ }
+
+ if (!priv->cpu) {
+ /* buffer not already allocated, try getting a new one */
+ ret = hantro_postproc_alloc(ctx, index);
+ if (ret)
+ return 0;
+ }
+
+ if (!priv->cpu)
+ return 0;
+
+ return priv->dma;
+}
+
static void hantro_postproc_g1_disable(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index b3ae037a50f6..f0d8b165abcd 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -933,7 +933,7 @@ static int hantro_start_streaming(struct vb2_queue *q, unsigned int count)
}
if (hantro_needs_postproc(ctx, ctx->vpu_dst_fmt)) {
- ret = hantro_postproc_alloc(ctx);
+ ret = hantro_postproc_init(ctx);
if (ret)
goto err_codec_exit;
}
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 16/53] media: verisilicon: Refactor postprocessor to store more buffers
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Since vb2 queue can store more than VB2_MAX_FRAME buffers, the
postprocessor buffer storage must be capable to store more buffers too.
Change static dec_q array to allocated array to be capable to store
up to queue 'max_num_buffers'.
Keep allocating queue 'num_buffers' at queue setup time but also allows
to allocate postprocessors buffers on the fly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/verisilicon/hantro.h | 7 +-
.../media/platform/verisilicon/hantro_drv.c | 4 +-
.../media/platform/verisilicon/hantro_hw.h | 4 +-
.../platform/verisilicon/hantro_postproc.c | 93 +++++++++++++++----
.../media/platform/verisilicon/hantro_v4l2.c | 2 +-
5 files changed, 85 insertions(+), 25 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro.h b/drivers/media/platform/verisilicon/hantro.h
index 77aee9489516..0948b04a9f8d 100644
--- a/drivers/media/platform/verisilicon/hantro.h
+++ b/drivers/media/platform/verisilicon/hantro.h
@@ -469,11 +469,14 @@ hantro_get_dst_buf(struct hantro_ctx *ctx)
bool hantro_needs_postproc(const struct hantro_ctx *ctx,
const struct hantro_fmt *fmt);
+dma_addr_t
+hantro_postproc_get_dec_buf_addr(struct hantro_ctx *ctx, int index);
+
static inline dma_addr_t
hantro_get_dec_buf_addr(struct hantro_ctx *ctx, struct vb2_buffer *vb)
{
if (hantro_needs_postproc(ctx, ctx->vpu_dst_fmt))
- return ctx->postproc.dec_q[vb->index].dma;
+ return hantro_postproc_get_dec_buf_addr(ctx, vb->index);
return vb2_dma_contig_plane_dma_addr(vb, 0);
}
@@ -485,8 +488,8 @@ vb2_to_hantro_decoded_buf(struct vb2_buffer *buf)
void hantro_postproc_disable(struct hantro_ctx *ctx);
void hantro_postproc_enable(struct hantro_ctx *ctx);
+int hantro_postproc_init(struct hantro_ctx *ctx);
void hantro_postproc_free(struct hantro_ctx *ctx);
-int hantro_postproc_alloc(struct hantro_ctx *ctx);
int hanto_postproc_enum_framesizes(struct hantro_ctx *ctx,
struct v4l2_frmsizeenum *fsize);
diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
index 423fc85d79ee..ad6b086f0526 100644
--- a/drivers/media/platform/verisilicon/hantro_drv.c
+++ b/drivers/media/platform/verisilicon/hantro_drv.c
@@ -234,8 +234,10 @@ queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
* The Kernel needs access to the JPEG destination buffer for the
* JPEG encoder to fill in the JPEG headers.
*/
- if (!ctx->is_encoder)
+ if (!ctx->is_encoder) {
dst_vq->dma_attrs |= DMA_ATTR_NO_KERNEL_MAPPING;
+ dst_vq->max_num_buffers = MAX_POSTPROC_BUFFERS;
+ }
dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
diff --git a/drivers/media/platform/verisilicon/hantro_hw.h b/drivers/media/platform/verisilicon/hantro_hw.h
index 7f33f7b07ce4..292a76ef643e 100644
--- a/drivers/media/platform/verisilicon/hantro_hw.h
+++ b/drivers/media/platform/verisilicon/hantro_hw.h
@@ -40,6 +40,8 @@
#define AV1_MAX_FRAME_BUF_COUNT (V4L2_AV1_TOTAL_REFS_PER_FRAME + 1)
+#define MAX_POSTPROC_BUFFERS 64
+
struct hantro_dev;
struct hantro_ctx;
struct hantro_buf;
@@ -336,7 +338,7 @@ struct hantro_av1_dec_hw_ctx {
* @dec_q: References buffers, in decoder format.
*/
struct hantro_postproc_ctx {
- struct hantro_aux_buf dec_q[VB2_MAX_FRAME];
+ struct hantro_aux_buf dec_q[MAX_POSTPROC_BUFFERS];
};
/**
diff --git a/drivers/media/platform/verisilicon/hantro_postproc.c b/drivers/media/platform/verisilicon/hantro_postproc.c
index 0224ff68ab3f..20e8f04a3bef 100644
--- a/drivers/media/platform/verisilicon/hantro_postproc.c
+++ b/drivers/media/platform/verisilicon/hantro_postproc.c
@@ -177,9 +177,11 @@ static int hantro_postproc_g2_enum_framesizes(struct hantro_ctx *ctx,
void hantro_postproc_free(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
+ struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
+ struct vb2_queue *queue = &m2m_ctx->cap_q_ctx.q;
unsigned int i;
- for (i = 0; i < VB2_MAX_FRAME; ++i) {
+ for (i = 0; i < queue->max_num_buffers; ++i) {
struct hantro_aux_buf *priv = &ctx->postproc.dec_q[i];
if (priv->cpu) {
@@ -190,20 +192,17 @@ void hantro_postproc_free(struct hantro_ctx *ctx)
}
}
-int hantro_postproc_alloc(struct hantro_ctx *ctx)
+static unsigned int hantro_postproc_buffer_size(struct hantro_ctx *ctx)
{
- struct hantro_dev *vpu = ctx->dev;
- struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
- struct vb2_queue *cap_queue = &m2m_ctx->cap_q_ctx.q;
- unsigned int num_buffers = cap_queue->num_buffers;
struct v4l2_pix_format_mplane pix_mp;
const struct hantro_fmt *fmt;
- unsigned int i, buf_size;
+ unsigned int buf_size;
/* this should always pick native format */
fmt = hantro_get_default_fmt(ctx, false, ctx->bit_depth, HANTRO_AUTO_POSTPROC);
if (!fmt)
- return -EINVAL;
+ return 0;
+
v4l2_fill_pixfmt_mp(&pix_mp, fmt->fourcc, ctx->src_fmt.width,
ctx->src_fmt.height);
@@ -221,23 +220,77 @@ int hantro_postproc_alloc(struct hantro_ctx *ctx)
buf_size += hantro_av1_mv_size(pix_mp.width,
pix_mp.height);
- for (i = 0; i < num_buffers; ++i) {
- struct hantro_aux_buf *priv = &ctx->postproc.dec_q[i];
+ return buf_size;
+}
+
+static int hantro_postproc_alloc(struct hantro_ctx *ctx, int index)
+{
+ struct hantro_dev *vpu = ctx->dev;
+ struct hantro_aux_buf *priv = &ctx->postproc.dec_q[index];
+ unsigned int buf_size = hantro_postproc_buffer_size(ctx);
+
+ if (!buf_size)
+ return -EINVAL;
+
+ /*
+ * The buffers on this queue are meant as intermediate
+ * buffers for the decoder, so no mapping is needed.
+ */
+ priv->attrs = DMA_ATTR_NO_KERNEL_MAPPING;
+ priv->cpu = dma_alloc_attrs(vpu->dev, buf_size, &priv->dma,
+ GFP_KERNEL, priv->attrs);
+ if (!priv->cpu)
+ return -ENOMEM;
+ priv->size = buf_size;
+
+ return 0;
+}
- /*
- * The buffers on this queue are meant as intermediate
- * buffers for the decoder, so no mapping is needed.
- */
- priv->attrs = DMA_ATTR_NO_KERNEL_MAPPING;
- priv->cpu = dma_alloc_attrs(vpu->dev, buf_size, &priv->dma,
- GFP_KERNEL, priv->attrs);
- if (!priv->cpu)
- return -ENOMEM;
- priv->size = buf_size;
+int hantro_postproc_init(struct hantro_ctx *ctx)
+{
+ struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
+ struct vb2_queue *cap_queue = &m2m_ctx->cap_q_ctx.q;
+ unsigned int num_buffers = cap_queue->num_buffers;
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < num_buffers; i++) {
+ ret = hantro_postproc_alloc(ctx, i);
+ if (ret)
+ return ret;
}
+
return 0;
}
+dma_addr_t
+hantro_postproc_get_dec_buf_addr(struct hantro_ctx *ctx, int index)
+{
+ struct hantro_aux_buf *priv = &ctx->postproc.dec_q[index];
+ unsigned int buf_size = hantro_postproc_buffer_size(ctx);
+ struct hantro_dev *vpu = ctx->dev;
+ int ret;
+
+ if (priv->size < buf_size && priv->cpu) {
+ /* buffer is too small, release it */
+ dma_free_attrs(vpu->dev, priv->size, priv->cpu,
+ priv->dma, priv->attrs);
+ priv->cpu = NULL;
+ }
+
+ if (!priv->cpu) {
+ /* buffer not already allocated, try getting a new one */
+ ret = hantro_postproc_alloc(ctx, index);
+ if (ret)
+ return 0;
+ }
+
+ if (!priv->cpu)
+ return 0;
+
+ return priv->dma;
+}
+
static void hantro_postproc_g1_disable(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index b3ae037a50f6..f0d8b165abcd 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -933,7 +933,7 @@ static int hantro_start_streaming(struct vb2_queue *q, unsigned int count)
}
if (hantro_needs_postproc(ctx, ctx->vpu_dst_fmt)) {
- ret = hantro_postproc_alloc(ctx);
+ ret = hantro_postproc_init(ctx);
if (ret)
goto err_codec_exit;
}
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 16/53] media: verisilicon: Refactor postprocessor to store more buffers
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Since vb2 queue can store more than VB2_MAX_FRAME buffers, the
postprocessor buffer storage must be capable to store more buffers too.
Change static dec_q array to allocated array to be capable to store
up to queue 'max_num_buffers'.
Keep allocating queue 'num_buffers' at queue setup time but also allows
to allocate postprocessors buffers on the fly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/verisilicon/hantro.h | 7 +-
.../media/platform/verisilicon/hantro_drv.c | 4 +-
.../media/platform/verisilicon/hantro_hw.h | 4 +-
.../platform/verisilicon/hantro_postproc.c | 93 +++++++++++++++----
.../media/platform/verisilicon/hantro_v4l2.c | 2 +-
5 files changed, 85 insertions(+), 25 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro.h b/drivers/media/platform/verisilicon/hantro.h
index 77aee9489516..0948b04a9f8d 100644
--- a/drivers/media/platform/verisilicon/hantro.h
+++ b/drivers/media/platform/verisilicon/hantro.h
@@ -469,11 +469,14 @@ hantro_get_dst_buf(struct hantro_ctx *ctx)
bool hantro_needs_postproc(const struct hantro_ctx *ctx,
const struct hantro_fmt *fmt);
+dma_addr_t
+hantro_postproc_get_dec_buf_addr(struct hantro_ctx *ctx, int index);
+
static inline dma_addr_t
hantro_get_dec_buf_addr(struct hantro_ctx *ctx, struct vb2_buffer *vb)
{
if (hantro_needs_postproc(ctx, ctx->vpu_dst_fmt))
- return ctx->postproc.dec_q[vb->index].dma;
+ return hantro_postproc_get_dec_buf_addr(ctx, vb->index);
return vb2_dma_contig_plane_dma_addr(vb, 0);
}
@@ -485,8 +488,8 @@ vb2_to_hantro_decoded_buf(struct vb2_buffer *buf)
void hantro_postproc_disable(struct hantro_ctx *ctx);
void hantro_postproc_enable(struct hantro_ctx *ctx);
+int hantro_postproc_init(struct hantro_ctx *ctx);
void hantro_postproc_free(struct hantro_ctx *ctx);
-int hantro_postproc_alloc(struct hantro_ctx *ctx);
int hanto_postproc_enum_framesizes(struct hantro_ctx *ctx,
struct v4l2_frmsizeenum *fsize);
diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
index 423fc85d79ee..ad6b086f0526 100644
--- a/drivers/media/platform/verisilicon/hantro_drv.c
+++ b/drivers/media/platform/verisilicon/hantro_drv.c
@@ -234,8 +234,10 @@ queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
* The Kernel needs access to the JPEG destination buffer for the
* JPEG encoder to fill in the JPEG headers.
*/
- if (!ctx->is_encoder)
+ if (!ctx->is_encoder) {
dst_vq->dma_attrs |= DMA_ATTR_NO_KERNEL_MAPPING;
+ dst_vq->max_num_buffers = MAX_POSTPROC_BUFFERS;
+ }
dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
diff --git a/drivers/media/platform/verisilicon/hantro_hw.h b/drivers/media/platform/verisilicon/hantro_hw.h
index 7f33f7b07ce4..292a76ef643e 100644
--- a/drivers/media/platform/verisilicon/hantro_hw.h
+++ b/drivers/media/platform/verisilicon/hantro_hw.h
@@ -40,6 +40,8 @@
#define AV1_MAX_FRAME_BUF_COUNT (V4L2_AV1_TOTAL_REFS_PER_FRAME + 1)
+#define MAX_POSTPROC_BUFFERS 64
+
struct hantro_dev;
struct hantro_ctx;
struct hantro_buf;
@@ -336,7 +338,7 @@ struct hantro_av1_dec_hw_ctx {
* @dec_q: References buffers, in decoder format.
*/
struct hantro_postproc_ctx {
- struct hantro_aux_buf dec_q[VB2_MAX_FRAME];
+ struct hantro_aux_buf dec_q[MAX_POSTPROC_BUFFERS];
};
/**
diff --git a/drivers/media/platform/verisilicon/hantro_postproc.c b/drivers/media/platform/verisilicon/hantro_postproc.c
index 0224ff68ab3f..20e8f04a3bef 100644
--- a/drivers/media/platform/verisilicon/hantro_postproc.c
+++ b/drivers/media/platform/verisilicon/hantro_postproc.c
@@ -177,9 +177,11 @@ static int hantro_postproc_g2_enum_framesizes(struct hantro_ctx *ctx,
void hantro_postproc_free(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
+ struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
+ struct vb2_queue *queue = &m2m_ctx->cap_q_ctx.q;
unsigned int i;
- for (i = 0; i < VB2_MAX_FRAME; ++i) {
+ for (i = 0; i < queue->max_num_buffers; ++i) {
struct hantro_aux_buf *priv = &ctx->postproc.dec_q[i];
if (priv->cpu) {
@@ -190,20 +192,17 @@ void hantro_postproc_free(struct hantro_ctx *ctx)
}
}
-int hantro_postproc_alloc(struct hantro_ctx *ctx)
+static unsigned int hantro_postproc_buffer_size(struct hantro_ctx *ctx)
{
- struct hantro_dev *vpu = ctx->dev;
- struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
- struct vb2_queue *cap_queue = &m2m_ctx->cap_q_ctx.q;
- unsigned int num_buffers = cap_queue->num_buffers;
struct v4l2_pix_format_mplane pix_mp;
const struct hantro_fmt *fmt;
- unsigned int i, buf_size;
+ unsigned int buf_size;
/* this should always pick native format */
fmt = hantro_get_default_fmt(ctx, false, ctx->bit_depth, HANTRO_AUTO_POSTPROC);
if (!fmt)
- return -EINVAL;
+ return 0;
+
v4l2_fill_pixfmt_mp(&pix_mp, fmt->fourcc, ctx->src_fmt.width,
ctx->src_fmt.height);
@@ -221,23 +220,77 @@ int hantro_postproc_alloc(struct hantro_ctx *ctx)
buf_size += hantro_av1_mv_size(pix_mp.width,
pix_mp.height);
- for (i = 0; i < num_buffers; ++i) {
- struct hantro_aux_buf *priv = &ctx->postproc.dec_q[i];
+ return buf_size;
+}
+
+static int hantro_postproc_alloc(struct hantro_ctx *ctx, int index)
+{
+ struct hantro_dev *vpu = ctx->dev;
+ struct hantro_aux_buf *priv = &ctx->postproc.dec_q[index];
+ unsigned int buf_size = hantro_postproc_buffer_size(ctx);
+
+ if (!buf_size)
+ return -EINVAL;
+
+ /*
+ * The buffers on this queue are meant as intermediate
+ * buffers for the decoder, so no mapping is needed.
+ */
+ priv->attrs = DMA_ATTR_NO_KERNEL_MAPPING;
+ priv->cpu = dma_alloc_attrs(vpu->dev, buf_size, &priv->dma,
+ GFP_KERNEL, priv->attrs);
+ if (!priv->cpu)
+ return -ENOMEM;
+ priv->size = buf_size;
+
+ return 0;
+}
- /*
- * The buffers on this queue are meant as intermediate
- * buffers for the decoder, so no mapping is needed.
- */
- priv->attrs = DMA_ATTR_NO_KERNEL_MAPPING;
- priv->cpu = dma_alloc_attrs(vpu->dev, buf_size, &priv->dma,
- GFP_KERNEL, priv->attrs);
- if (!priv->cpu)
- return -ENOMEM;
- priv->size = buf_size;
+int hantro_postproc_init(struct hantro_ctx *ctx)
+{
+ struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
+ struct vb2_queue *cap_queue = &m2m_ctx->cap_q_ctx.q;
+ unsigned int num_buffers = cap_queue->num_buffers;
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < num_buffers; i++) {
+ ret = hantro_postproc_alloc(ctx, i);
+ if (ret)
+ return ret;
}
+
return 0;
}
+dma_addr_t
+hantro_postproc_get_dec_buf_addr(struct hantro_ctx *ctx, int index)
+{
+ struct hantro_aux_buf *priv = &ctx->postproc.dec_q[index];
+ unsigned int buf_size = hantro_postproc_buffer_size(ctx);
+ struct hantro_dev *vpu = ctx->dev;
+ int ret;
+
+ if (priv->size < buf_size && priv->cpu) {
+ /* buffer is too small, release it */
+ dma_free_attrs(vpu->dev, priv->size, priv->cpu,
+ priv->dma, priv->attrs);
+ priv->cpu = NULL;
+ }
+
+ if (!priv->cpu) {
+ /* buffer not already allocated, try getting a new one */
+ ret = hantro_postproc_alloc(ctx, index);
+ if (ret)
+ return 0;
+ }
+
+ if (!priv->cpu)
+ return 0;
+
+ return priv->dma;
+}
+
static void hantro_postproc_g1_disable(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index b3ae037a50f6..f0d8b165abcd 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -933,7 +933,7 @@ static int hantro_start_streaming(struct vb2_queue *q, unsigned int count)
}
if (hantro_needs_postproc(ctx, ctx->vpu_dst_fmt)) {
- ret = hantro_postproc_alloc(ctx);
+ ret = hantro_postproc_init(ctx);
if (ret)
goto err_codec_exit;
}
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 17/53] media: verisilicon: Store chroma and motion vectors offset
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Store computed values of chroma and motion vectors offset because
they depends on width and height values which change if the resolution
change.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/verisilicon/hantro.h | 2 ++
drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c | 6 ++++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro.h b/drivers/media/platform/verisilicon/hantro.h
index 0948b04a9f8d..6f5eb975d0e3 100644
--- a/drivers/media/platform/verisilicon/hantro.h
+++ b/drivers/media/platform/verisilicon/hantro.h
@@ -328,6 +328,8 @@ struct hantro_vp9_decoded_buffer_info {
/* Info needed when the decoded frame serves as a reference frame. */
unsigned short width;
unsigned short height;
+ size_t chroma_offset;
+ size_t mv_offset;
u32 bit_depth : 4;
};
diff --git a/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c b/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
index 6fc4b555517f..6db1c32fce4d 100644
--- a/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
+++ b/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
@@ -158,9 +158,11 @@ static void config_output(struct hantro_ctx *ctx,
chroma_addr = luma_addr + chroma_offset(ctx, dec_params);
hantro_write_addr(ctx->dev, G2_OUT_CHROMA_ADDR, chroma_addr);
+ dst->vp9.chroma_offset = chroma_offset(ctx, dec_params);
mv_addr = luma_addr + mv_offset(ctx, dec_params);
hantro_write_addr(ctx->dev, G2_OUT_MV_ADDR, mv_addr);
+ dst->vp9.mv_offset = mv_offset(ctx, dec_params);
}
struct hantro_vp9_ref_reg {
@@ -195,7 +197,7 @@ static void config_ref(struct hantro_ctx *ctx,
luma_addr = hantro_get_dec_buf_addr(ctx, &buf->base.vb.vb2_buf);
hantro_write_addr(ctx->dev, ref_reg->y_base, luma_addr);
- chroma_addr = luma_addr + chroma_offset(ctx, dec_params);
+ chroma_addr = luma_addr + buf->vp9.chroma_offset;
hantro_write_addr(ctx->dev, ref_reg->c_base, chroma_addr);
}
@@ -238,7 +240,7 @@ static void config_ref_registers(struct hantro_ctx *ctx,
config_ref(ctx, dst, &ref_regs[2], dec_params, dec_params->alt_frame_ts);
mv_addr = hantro_get_dec_buf_addr(ctx, &mv_ref->base.vb.vb2_buf) +
- mv_offset(ctx, dec_params);
+ mv_ref->vp9.mv_offset;
hantro_write_addr(ctx->dev, G2_REF_MV_ADDR(0), mv_addr);
hantro_reg_write(ctx->dev, &vp9_last_sign_bias,
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 17/53] media: verisilicon: Store chroma and motion vectors offset
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Store computed values of chroma and motion vectors offset because
they depends on width and height values which change if the resolution
change.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/verisilicon/hantro.h | 2 ++
drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c | 6 ++++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro.h b/drivers/media/platform/verisilicon/hantro.h
index 0948b04a9f8d..6f5eb975d0e3 100644
--- a/drivers/media/platform/verisilicon/hantro.h
+++ b/drivers/media/platform/verisilicon/hantro.h
@@ -328,6 +328,8 @@ struct hantro_vp9_decoded_buffer_info {
/* Info needed when the decoded frame serves as a reference frame. */
unsigned short width;
unsigned short height;
+ size_t chroma_offset;
+ size_t mv_offset;
u32 bit_depth : 4;
};
diff --git a/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c b/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
index 6fc4b555517f..6db1c32fce4d 100644
--- a/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
+++ b/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
@@ -158,9 +158,11 @@ static void config_output(struct hantro_ctx *ctx,
chroma_addr = luma_addr + chroma_offset(ctx, dec_params);
hantro_write_addr(ctx->dev, G2_OUT_CHROMA_ADDR, chroma_addr);
+ dst->vp9.chroma_offset = chroma_offset(ctx, dec_params);
mv_addr = luma_addr + mv_offset(ctx, dec_params);
hantro_write_addr(ctx->dev, G2_OUT_MV_ADDR, mv_addr);
+ dst->vp9.mv_offset = mv_offset(ctx, dec_params);
}
struct hantro_vp9_ref_reg {
@@ -195,7 +197,7 @@ static void config_ref(struct hantro_ctx *ctx,
luma_addr = hantro_get_dec_buf_addr(ctx, &buf->base.vb.vb2_buf);
hantro_write_addr(ctx->dev, ref_reg->y_base, luma_addr);
- chroma_addr = luma_addr + chroma_offset(ctx, dec_params);
+ chroma_addr = luma_addr + buf->vp9.chroma_offset;
hantro_write_addr(ctx->dev, ref_reg->c_base, chroma_addr);
}
@@ -238,7 +240,7 @@ static void config_ref_registers(struct hantro_ctx *ctx,
config_ref(ctx, dst, &ref_regs[2], dec_params, dec_params->alt_frame_ts);
mv_addr = hantro_get_dec_buf_addr(ctx, &mv_ref->base.vb.vb2_buf) +
- mv_offset(ctx, dec_params);
+ mv_ref->vp9.mv_offset;
hantro_write_addr(ctx->dev, G2_REF_MV_ADDR(0), mv_addr);
hantro_reg_write(ctx->dev, &vp9_last_sign_bias,
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 17/53] media: verisilicon: Store chroma and motion vectors offset
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Store computed values of chroma and motion vectors offset because
they depends on width and height values which change if the resolution
change.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/verisilicon/hantro.h | 2 ++
drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c | 6 ++++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro.h b/drivers/media/platform/verisilicon/hantro.h
index 0948b04a9f8d..6f5eb975d0e3 100644
--- a/drivers/media/platform/verisilicon/hantro.h
+++ b/drivers/media/platform/verisilicon/hantro.h
@@ -328,6 +328,8 @@ struct hantro_vp9_decoded_buffer_info {
/* Info needed when the decoded frame serves as a reference frame. */
unsigned short width;
unsigned short height;
+ size_t chroma_offset;
+ size_t mv_offset;
u32 bit_depth : 4;
};
diff --git a/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c b/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
index 6fc4b555517f..6db1c32fce4d 100644
--- a/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
+++ b/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
@@ -158,9 +158,11 @@ static void config_output(struct hantro_ctx *ctx,
chroma_addr = luma_addr + chroma_offset(ctx, dec_params);
hantro_write_addr(ctx->dev, G2_OUT_CHROMA_ADDR, chroma_addr);
+ dst->vp9.chroma_offset = chroma_offset(ctx, dec_params);
mv_addr = luma_addr + mv_offset(ctx, dec_params);
hantro_write_addr(ctx->dev, G2_OUT_MV_ADDR, mv_addr);
+ dst->vp9.mv_offset = mv_offset(ctx, dec_params);
}
struct hantro_vp9_ref_reg {
@@ -195,7 +197,7 @@ static void config_ref(struct hantro_ctx *ctx,
luma_addr = hantro_get_dec_buf_addr(ctx, &buf->base.vb.vb2_buf);
hantro_write_addr(ctx->dev, ref_reg->y_base, luma_addr);
- chroma_addr = luma_addr + chroma_offset(ctx, dec_params);
+ chroma_addr = luma_addr + buf->vp9.chroma_offset;
hantro_write_addr(ctx->dev, ref_reg->c_base, chroma_addr);
}
@@ -238,7 +240,7 @@ static void config_ref_registers(struct hantro_ctx *ctx,
config_ref(ctx, dst, &ref_regs[2], dec_params, dec_params->alt_frame_ts);
mv_addr = hantro_get_dec_buf_addr(ctx, &mv_ref->base.vb.vb2_buf) +
- mv_offset(ctx, dec_params);
+ mv_ref->vp9.mv_offset;
hantro_write_addr(ctx->dev, G2_REF_MV_ADDR(0), mv_addr);
hantro_reg_write(ctx->dev, &vp9_last_sign_bias,
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 18/53] media: verisilicon: g2: Use common helpers to compute chroma and mv offsets
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
HEVC and VP9 are running on the same hardware and share the same
chroma and motion vectors offset constraint.
Create common helpers functions for these computation.
Source and destination buffer height may not be the same because
alignment constraint are different so use destination height to
compute chroma offset because we target this buffer as hardware
output.
To be able to use the helpers in both VP9 HEVC code remove dec_params
and use context->bit_depth instead.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/platform/verisilicon/hantro_g2.c | 14 ++++++++++
.../platform/verisilicon/hantro_g2_hevc_dec.c | 18 ++-----------
.../platform/verisilicon/hantro_g2_vp9_dec.c | 26 +++----------------
.../media/platform/verisilicon/hantro_hw.h | 3 +++
4 files changed, 23 insertions(+), 38 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro_g2.c b/drivers/media/platform/verisilicon/hantro_g2.c
index ee5f14c5f8f2..b880a6849d58 100644
--- a/drivers/media/platform/verisilicon/hantro_g2.c
+++ b/drivers/media/platform/verisilicon/hantro_g2.c
@@ -8,6 +8,8 @@
#include "hantro_hw.h"
#include "hantro_g2_regs.h"
+#define G2_ALIGN 16
+
void hantro_g2_check_idle(struct hantro_dev *vpu)
{
int i;
@@ -42,3 +44,15 @@ irqreturn_t hantro_g2_irq(int irq, void *dev_id)
return IRQ_HANDLED;
}
+
+size_t hantro_g2_chroma_offset(struct hantro_ctx *ctx)
+{
+ return ctx->dst_fmt.width * ctx->dst_fmt.height * ctx->bit_depth / 8;
+}
+
+size_t hantro_g2_motion_vectors_offset(struct hantro_ctx *ctx)
+{
+ size_t cr_offset = hantro_g2_chroma_offset(ctx);
+
+ return ALIGN((cr_offset * 3) / 2, G2_ALIGN);
+}
diff --git a/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c b/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c
index a9d4ac84a8d8..d3f8c33eb16c 100644
--- a/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c
+++ b/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c
@@ -8,20 +8,6 @@
#include "hantro_hw.h"
#include "hantro_g2_regs.h"
-#define G2_ALIGN 16
-
-static size_t hantro_hevc_chroma_offset(struct hantro_ctx *ctx)
-{
- return ctx->dst_fmt.width * ctx->dst_fmt.height * ctx->bit_depth / 8;
-}
-
-static size_t hantro_hevc_motion_vectors_offset(struct hantro_ctx *ctx)
-{
- size_t cr_offset = hantro_hevc_chroma_offset(ctx);
-
- return ALIGN((cr_offset * 3) / 2, G2_ALIGN);
-}
-
static void prepare_tile_info_buffer(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
@@ -384,8 +370,8 @@ static int set_ref(struct hantro_ctx *ctx)
struct hantro_dev *vpu = ctx->dev;
struct vb2_v4l2_buffer *vb2_dst;
struct hantro_decoded_buffer *dst;
- size_t cr_offset = hantro_hevc_chroma_offset(ctx);
- size_t mv_offset = hantro_hevc_motion_vectors_offset(ctx);
+ size_t cr_offset = hantro_g2_chroma_offset(ctx);
+ size_t mv_offset = hantro_g2_motion_vectors_offset(ctx);
u32 max_ref_frames;
u16 dpb_longterm_e;
static const struct hantro_reg cur_poc[] = {
diff --git a/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c b/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
index 6db1c32fce4d..342e543dee4c 100644
--- a/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
+++ b/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
@@ -16,8 +16,6 @@
#include "hantro_vp9.h"
#include "hantro_g2_regs.h"
-#define G2_ALIGN 16
-
enum hantro_ref_frames {
INTRA_FRAME = 0,
LAST_FRAME = 1,
@@ -90,22 +88,6 @@ static int start_prepare_run(struct hantro_ctx *ctx, const struct v4l2_ctrl_vp9_
return 0;
}
-static size_t chroma_offset(const struct hantro_ctx *ctx,
- const struct v4l2_ctrl_vp9_frame *dec_params)
-{
- int bytes_per_pixel = dec_params->bit_depth == 8 ? 1 : 2;
-
- return ctx->src_fmt.width * ctx->src_fmt.height * bytes_per_pixel;
-}
-
-static size_t mv_offset(const struct hantro_ctx *ctx,
- const struct v4l2_ctrl_vp9_frame *dec_params)
-{
- size_t cr_offset = chroma_offset(ctx, dec_params);
-
- return ALIGN((cr_offset * 3) / 2, G2_ALIGN);
-}
-
static struct hantro_decoded_buffer *
get_ref_buf(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *dst, u64 timestamp)
{
@@ -156,13 +138,13 @@ static void config_output(struct hantro_ctx *ctx,
luma_addr = hantro_get_dec_buf_addr(ctx, &dst->base.vb.vb2_buf);
hantro_write_addr(ctx->dev, G2_OUT_LUMA_ADDR, luma_addr);
- chroma_addr = luma_addr + chroma_offset(ctx, dec_params);
+ chroma_addr = luma_addr + hantro_g2_chroma_offset(ctx);
hantro_write_addr(ctx->dev, G2_OUT_CHROMA_ADDR, chroma_addr);
- dst->vp9.chroma_offset = chroma_offset(ctx, dec_params);
+ dst->vp9.chroma_offset = hantro_g2_chroma_offset(ctx);
- mv_addr = luma_addr + mv_offset(ctx, dec_params);
+ mv_addr = luma_addr + hantro_g2_motion_vectors_offset(ctx);
hantro_write_addr(ctx->dev, G2_OUT_MV_ADDR, mv_addr);
- dst->vp9.mv_offset = mv_offset(ctx, dec_params);
+ dst->vp9.mv_offset = hantro_g2_motion_vectors_offset(ctx);
}
struct hantro_vp9_ref_reg {
diff --git a/drivers/media/platform/verisilicon/hantro_hw.h b/drivers/media/platform/verisilicon/hantro_hw.h
index 292a76ef643e..9aec8a79acdc 100644
--- a/drivers/media/platform/verisilicon/hantro_hw.h
+++ b/drivers/media/platform/verisilicon/hantro_hw.h
@@ -521,6 +521,9 @@ hantro_av1_mv_size(unsigned int width, unsigned int height)
return ALIGN(num_sbs * 384, 16) * 2 + 512;
}
+size_t hantro_g2_chroma_offset(struct hantro_ctx *ctx);
+size_t hantro_g2_motion_vectors_offset(struct hantro_ctx *ctx);
+
int hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx);
int rockchip_vpu2_mpeg2_dec_run(struct hantro_ctx *ctx);
void hantro_mpeg2_dec_copy_qtable(u8 *qtable,
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 18/53] media: verisilicon: g2: Use common helpers to compute chroma and mv offsets
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
HEVC and VP9 are running on the same hardware and share the same
chroma and motion vectors offset constraint.
Create common helpers functions for these computation.
Source and destination buffer height may not be the same because
alignment constraint are different so use destination height to
compute chroma offset because we target this buffer as hardware
output.
To be able to use the helpers in both VP9 HEVC code remove dec_params
and use context->bit_depth instead.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/platform/verisilicon/hantro_g2.c | 14 ++++++++++
.../platform/verisilicon/hantro_g2_hevc_dec.c | 18 ++-----------
.../platform/verisilicon/hantro_g2_vp9_dec.c | 26 +++----------------
.../media/platform/verisilicon/hantro_hw.h | 3 +++
4 files changed, 23 insertions(+), 38 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro_g2.c b/drivers/media/platform/verisilicon/hantro_g2.c
index ee5f14c5f8f2..b880a6849d58 100644
--- a/drivers/media/platform/verisilicon/hantro_g2.c
+++ b/drivers/media/platform/verisilicon/hantro_g2.c
@@ -8,6 +8,8 @@
#include "hantro_hw.h"
#include "hantro_g2_regs.h"
+#define G2_ALIGN 16
+
void hantro_g2_check_idle(struct hantro_dev *vpu)
{
int i;
@@ -42,3 +44,15 @@ irqreturn_t hantro_g2_irq(int irq, void *dev_id)
return IRQ_HANDLED;
}
+
+size_t hantro_g2_chroma_offset(struct hantro_ctx *ctx)
+{
+ return ctx->dst_fmt.width * ctx->dst_fmt.height * ctx->bit_depth / 8;
+}
+
+size_t hantro_g2_motion_vectors_offset(struct hantro_ctx *ctx)
+{
+ size_t cr_offset = hantro_g2_chroma_offset(ctx);
+
+ return ALIGN((cr_offset * 3) / 2, G2_ALIGN);
+}
diff --git a/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c b/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c
index a9d4ac84a8d8..d3f8c33eb16c 100644
--- a/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c
+++ b/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c
@@ -8,20 +8,6 @@
#include "hantro_hw.h"
#include "hantro_g2_regs.h"
-#define G2_ALIGN 16
-
-static size_t hantro_hevc_chroma_offset(struct hantro_ctx *ctx)
-{
- return ctx->dst_fmt.width * ctx->dst_fmt.height * ctx->bit_depth / 8;
-}
-
-static size_t hantro_hevc_motion_vectors_offset(struct hantro_ctx *ctx)
-{
- size_t cr_offset = hantro_hevc_chroma_offset(ctx);
-
- return ALIGN((cr_offset * 3) / 2, G2_ALIGN);
-}
-
static void prepare_tile_info_buffer(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
@@ -384,8 +370,8 @@ static int set_ref(struct hantro_ctx *ctx)
struct hantro_dev *vpu = ctx->dev;
struct vb2_v4l2_buffer *vb2_dst;
struct hantro_decoded_buffer *dst;
- size_t cr_offset = hantro_hevc_chroma_offset(ctx);
- size_t mv_offset = hantro_hevc_motion_vectors_offset(ctx);
+ size_t cr_offset = hantro_g2_chroma_offset(ctx);
+ size_t mv_offset = hantro_g2_motion_vectors_offset(ctx);
u32 max_ref_frames;
u16 dpb_longterm_e;
static const struct hantro_reg cur_poc[] = {
diff --git a/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c b/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
index 6db1c32fce4d..342e543dee4c 100644
--- a/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
+++ b/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
@@ -16,8 +16,6 @@
#include "hantro_vp9.h"
#include "hantro_g2_regs.h"
-#define G2_ALIGN 16
-
enum hantro_ref_frames {
INTRA_FRAME = 0,
LAST_FRAME = 1,
@@ -90,22 +88,6 @@ static int start_prepare_run(struct hantro_ctx *ctx, const struct v4l2_ctrl_vp9_
return 0;
}
-static size_t chroma_offset(const struct hantro_ctx *ctx,
- const struct v4l2_ctrl_vp9_frame *dec_params)
-{
- int bytes_per_pixel = dec_params->bit_depth == 8 ? 1 : 2;
-
- return ctx->src_fmt.width * ctx->src_fmt.height * bytes_per_pixel;
-}
-
-static size_t mv_offset(const struct hantro_ctx *ctx,
- const struct v4l2_ctrl_vp9_frame *dec_params)
-{
- size_t cr_offset = chroma_offset(ctx, dec_params);
-
- return ALIGN((cr_offset * 3) / 2, G2_ALIGN);
-}
-
static struct hantro_decoded_buffer *
get_ref_buf(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *dst, u64 timestamp)
{
@@ -156,13 +138,13 @@ static void config_output(struct hantro_ctx *ctx,
luma_addr = hantro_get_dec_buf_addr(ctx, &dst->base.vb.vb2_buf);
hantro_write_addr(ctx->dev, G2_OUT_LUMA_ADDR, luma_addr);
- chroma_addr = luma_addr + chroma_offset(ctx, dec_params);
+ chroma_addr = luma_addr + hantro_g2_chroma_offset(ctx);
hantro_write_addr(ctx->dev, G2_OUT_CHROMA_ADDR, chroma_addr);
- dst->vp9.chroma_offset = chroma_offset(ctx, dec_params);
+ dst->vp9.chroma_offset = hantro_g2_chroma_offset(ctx);
- mv_addr = luma_addr + mv_offset(ctx, dec_params);
+ mv_addr = luma_addr + hantro_g2_motion_vectors_offset(ctx);
hantro_write_addr(ctx->dev, G2_OUT_MV_ADDR, mv_addr);
- dst->vp9.mv_offset = mv_offset(ctx, dec_params);
+ dst->vp9.mv_offset = hantro_g2_motion_vectors_offset(ctx);
}
struct hantro_vp9_ref_reg {
diff --git a/drivers/media/platform/verisilicon/hantro_hw.h b/drivers/media/platform/verisilicon/hantro_hw.h
index 292a76ef643e..9aec8a79acdc 100644
--- a/drivers/media/platform/verisilicon/hantro_hw.h
+++ b/drivers/media/platform/verisilicon/hantro_hw.h
@@ -521,6 +521,9 @@ hantro_av1_mv_size(unsigned int width, unsigned int height)
return ALIGN(num_sbs * 384, 16) * 2 + 512;
}
+size_t hantro_g2_chroma_offset(struct hantro_ctx *ctx);
+size_t hantro_g2_motion_vectors_offset(struct hantro_ctx *ctx);
+
int hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx);
int rockchip_vpu2_mpeg2_dec_run(struct hantro_ctx *ctx);
void hantro_mpeg2_dec_copy_qtable(u8 *qtable,
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 18/53] media: verisilicon: g2: Use common helpers to compute chroma and mv offsets
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
HEVC and VP9 are running on the same hardware and share the same
chroma and motion vectors offset constraint.
Create common helpers functions for these computation.
Source and destination buffer height may not be the same because
alignment constraint are different so use destination height to
compute chroma offset because we target this buffer as hardware
output.
To be able to use the helpers in both VP9 HEVC code remove dec_params
and use context->bit_depth instead.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/platform/verisilicon/hantro_g2.c | 14 ++++++++++
.../platform/verisilicon/hantro_g2_hevc_dec.c | 18 ++-----------
.../platform/verisilicon/hantro_g2_vp9_dec.c | 26 +++----------------
.../media/platform/verisilicon/hantro_hw.h | 3 +++
4 files changed, 23 insertions(+), 38 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro_g2.c b/drivers/media/platform/verisilicon/hantro_g2.c
index ee5f14c5f8f2..b880a6849d58 100644
--- a/drivers/media/platform/verisilicon/hantro_g2.c
+++ b/drivers/media/platform/verisilicon/hantro_g2.c
@@ -8,6 +8,8 @@
#include "hantro_hw.h"
#include "hantro_g2_regs.h"
+#define G2_ALIGN 16
+
void hantro_g2_check_idle(struct hantro_dev *vpu)
{
int i;
@@ -42,3 +44,15 @@ irqreturn_t hantro_g2_irq(int irq, void *dev_id)
return IRQ_HANDLED;
}
+
+size_t hantro_g2_chroma_offset(struct hantro_ctx *ctx)
+{
+ return ctx->dst_fmt.width * ctx->dst_fmt.height * ctx->bit_depth / 8;
+}
+
+size_t hantro_g2_motion_vectors_offset(struct hantro_ctx *ctx)
+{
+ size_t cr_offset = hantro_g2_chroma_offset(ctx);
+
+ return ALIGN((cr_offset * 3) / 2, G2_ALIGN);
+}
diff --git a/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c b/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c
index a9d4ac84a8d8..d3f8c33eb16c 100644
--- a/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c
+++ b/drivers/media/platform/verisilicon/hantro_g2_hevc_dec.c
@@ -8,20 +8,6 @@
#include "hantro_hw.h"
#include "hantro_g2_regs.h"
-#define G2_ALIGN 16
-
-static size_t hantro_hevc_chroma_offset(struct hantro_ctx *ctx)
-{
- return ctx->dst_fmt.width * ctx->dst_fmt.height * ctx->bit_depth / 8;
-}
-
-static size_t hantro_hevc_motion_vectors_offset(struct hantro_ctx *ctx)
-{
- size_t cr_offset = hantro_hevc_chroma_offset(ctx);
-
- return ALIGN((cr_offset * 3) / 2, G2_ALIGN);
-}
-
static void prepare_tile_info_buffer(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
@@ -384,8 +370,8 @@ static int set_ref(struct hantro_ctx *ctx)
struct hantro_dev *vpu = ctx->dev;
struct vb2_v4l2_buffer *vb2_dst;
struct hantro_decoded_buffer *dst;
- size_t cr_offset = hantro_hevc_chroma_offset(ctx);
- size_t mv_offset = hantro_hevc_motion_vectors_offset(ctx);
+ size_t cr_offset = hantro_g2_chroma_offset(ctx);
+ size_t mv_offset = hantro_g2_motion_vectors_offset(ctx);
u32 max_ref_frames;
u16 dpb_longterm_e;
static const struct hantro_reg cur_poc[] = {
diff --git a/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c b/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
index 6db1c32fce4d..342e543dee4c 100644
--- a/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
+++ b/drivers/media/platform/verisilicon/hantro_g2_vp9_dec.c
@@ -16,8 +16,6 @@
#include "hantro_vp9.h"
#include "hantro_g2_regs.h"
-#define G2_ALIGN 16
-
enum hantro_ref_frames {
INTRA_FRAME = 0,
LAST_FRAME = 1,
@@ -90,22 +88,6 @@ static int start_prepare_run(struct hantro_ctx *ctx, const struct v4l2_ctrl_vp9_
return 0;
}
-static size_t chroma_offset(const struct hantro_ctx *ctx,
- const struct v4l2_ctrl_vp9_frame *dec_params)
-{
- int bytes_per_pixel = dec_params->bit_depth == 8 ? 1 : 2;
-
- return ctx->src_fmt.width * ctx->src_fmt.height * bytes_per_pixel;
-}
-
-static size_t mv_offset(const struct hantro_ctx *ctx,
- const struct v4l2_ctrl_vp9_frame *dec_params)
-{
- size_t cr_offset = chroma_offset(ctx, dec_params);
-
- return ALIGN((cr_offset * 3) / 2, G2_ALIGN);
-}
-
static struct hantro_decoded_buffer *
get_ref_buf(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *dst, u64 timestamp)
{
@@ -156,13 +138,13 @@ static void config_output(struct hantro_ctx *ctx,
luma_addr = hantro_get_dec_buf_addr(ctx, &dst->base.vb.vb2_buf);
hantro_write_addr(ctx->dev, G2_OUT_LUMA_ADDR, luma_addr);
- chroma_addr = luma_addr + chroma_offset(ctx, dec_params);
+ chroma_addr = luma_addr + hantro_g2_chroma_offset(ctx);
hantro_write_addr(ctx->dev, G2_OUT_CHROMA_ADDR, chroma_addr);
- dst->vp9.chroma_offset = chroma_offset(ctx, dec_params);
+ dst->vp9.chroma_offset = hantro_g2_chroma_offset(ctx);
- mv_addr = luma_addr + mv_offset(ctx, dec_params);
+ mv_addr = luma_addr + hantro_g2_motion_vectors_offset(ctx);
hantro_write_addr(ctx->dev, G2_OUT_MV_ADDR, mv_addr);
- dst->vp9.mv_offset = mv_offset(ctx, dec_params);
+ dst->vp9.mv_offset = hantro_g2_motion_vectors_offset(ctx);
}
struct hantro_vp9_ref_reg {
diff --git a/drivers/media/platform/verisilicon/hantro_hw.h b/drivers/media/platform/verisilicon/hantro_hw.h
index 292a76ef643e..9aec8a79acdc 100644
--- a/drivers/media/platform/verisilicon/hantro_hw.h
+++ b/drivers/media/platform/verisilicon/hantro_hw.h
@@ -521,6 +521,9 @@ hantro_av1_mv_size(unsigned int width, unsigned int height)
return ALIGN(num_sbs * 384, 16) * 2 + 512;
}
+size_t hantro_g2_chroma_offset(struct hantro_ctx *ctx);
+size_t hantro_g2_motion_vectors_offset(struct hantro_ctx *ctx);
+
int hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx);
int rockchip_vpu2_mpeg2_dec_run(struct hantro_ctx *ctx);
void hantro_mpeg2_dec_copy_qtable(u8 *qtable,
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 19/53] media: verisilicon: vp9: Allow to change resolution while streaming
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Remove all checks that prohibit to set a new format while streaming.
This allow to change dynamically the resolution if the pixel format
remains the same.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/platform/verisilicon/hantro_v4l2.c | 24 +++----------------
1 file changed, 3 insertions(+), 21 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index f0d8b165abcd..27a1e77cca38 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -514,25 +514,14 @@ static int hantro_set_fmt_out(struct hantro_ctx *ctx,
return ret;
if (!ctx->is_encoder) {
- struct vb2_queue *peer_vq;
-
/*
* In order to support dynamic resolution change,
* the decoder admits a resolution change, as long
- * as the pixelformat remains. Can't be done if streaming.
- */
- if (vb2_is_streaming(vq) || (vb2_is_busy(vq) &&
- pix_mp->pixelformat != ctx->src_fmt.pixelformat))
- return -EBUSY;
- /*
- * Since format change on the OUTPUT queue will reset
- * the CAPTURE queue, we can't allow doing so
- * when the CAPTURE queue has buffers allocated.
+ * as the pixelformat remains.
*/
- peer_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
- V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
- if (vb2_is_busy(peer_vq))
+ if (vb2_is_streaming(vq) && pix_mp->pixelformat != ctx->src_fmt.pixelformat) {
return -EBUSY;
+ }
} else {
/*
* The encoder doesn't admit a format change if
@@ -577,15 +566,8 @@ static int hantro_set_fmt_out(struct hantro_ctx *ctx,
static int hantro_set_fmt_cap(struct hantro_ctx *ctx,
struct v4l2_pix_format_mplane *pix_mp)
{
- struct vb2_queue *vq;
int ret;
- /* Change not allowed if queue is busy. */
- vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
- V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
- if (vb2_is_busy(vq))
- return -EBUSY;
-
if (ctx->is_encoder) {
struct vb2_queue *peer_vq;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 19/53] media: verisilicon: vp9: Allow to change resolution while streaming
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Remove all checks that prohibit to set a new format while streaming.
This allow to change dynamically the resolution if the pixel format
remains the same.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/platform/verisilicon/hantro_v4l2.c | 24 +++----------------
1 file changed, 3 insertions(+), 21 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index f0d8b165abcd..27a1e77cca38 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -514,25 +514,14 @@ static int hantro_set_fmt_out(struct hantro_ctx *ctx,
return ret;
if (!ctx->is_encoder) {
- struct vb2_queue *peer_vq;
-
/*
* In order to support dynamic resolution change,
* the decoder admits a resolution change, as long
- * as the pixelformat remains. Can't be done if streaming.
- */
- if (vb2_is_streaming(vq) || (vb2_is_busy(vq) &&
- pix_mp->pixelformat != ctx->src_fmt.pixelformat))
- return -EBUSY;
- /*
- * Since format change on the OUTPUT queue will reset
- * the CAPTURE queue, we can't allow doing so
- * when the CAPTURE queue has buffers allocated.
+ * as the pixelformat remains.
*/
- peer_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
- V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
- if (vb2_is_busy(peer_vq))
+ if (vb2_is_streaming(vq) && pix_mp->pixelformat != ctx->src_fmt.pixelformat) {
return -EBUSY;
+ }
} else {
/*
* The encoder doesn't admit a format change if
@@ -577,15 +566,8 @@ static int hantro_set_fmt_out(struct hantro_ctx *ctx,
static int hantro_set_fmt_cap(struct hantro_ctx *ctx,
struct v4l2_pix_format_mplane *pix_mp)
{
- struct vb2_queue *vq;
int ret;
- /* Change not allowed if queue is busy. */
- vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
- V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
- if (vb2_is_busy(vq))
- return -EBUSY;
-
if (ctx->is_encoder) {
struct vb2_queue *peer_vq;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 19/53] media: verisilicon: vp9: Allow to change resolution while streaming
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Remove all checks that prohibit to set a new format while streaming.
This allow to change dynamically the resolution if the pixel format
remains the same.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/platform/verisilicon/hantro_v4l2.c | 24 +++----------------
1 file changed, 3 insertions(+), 21 deletions(-)
diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index f0d8b165abcd..27a1e77cca38 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -514,25 +514,14 @@ static int hantro_set_fmt_out(struct hantro_ctx *ctx,
return ret;
if (!ctx->is_encoder) {
- struct vb2_queue *peer_vq;
-
/*
* In order to support dynamic resolution change,
* the decoder admits a resolution change, as long
- * as the pixelformat remains. Can't be done if streaming.
- */
- if (vb2_is_streaming(vq) || (vb2_is_busy(vq) &&
- pix_mp->pixelformat != ctx->src_fmt.pixelformat))
- return -EBUSY;
- /*
- * Since format change on the OUTPUT queue will reset
- * the CAPTURE queue, we can't allow doing so
- * when the CAPTURE queue has buffers allocated.
+ * as the pixelformat remains.
*/
- peer_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
- V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
- if (vb2_is_busy(peer_vq))
+ if (vb2_is_streaming(vq) && pix_mp->pixelformat != ctx->src_fmt.pixelformat) {
return -EBUSY;
+ }
} else {
/*
* The encoder doesn't admit a format change if
@@ -577,15 +566,8 @@ static int hantro_set_fmt_out(struct hantro_ctx *ctx,
static int hantro_set_fmt_cap(struct hantro_ctx *ctx,
struct v4l2_pix_format_mplane *pix_mp)
{
- struct vb2_queue *vq;
int ret;
- /* Change not allowed if queue is busy. */
- vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
- V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
- if (vb2_is_busy(vq))
- return -EBUSY;
-
if (ctx->is_encoder) {
struct vb2_queue *peer_vq;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 20/53] media: Remove duplicated index vs q->num_buffers check
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2_get_buffer() already checks if the requested index is valid.
Stop duplicating this kind of check everywhere.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/common/videobuf2/videobuf2-v4l2.c | 13 -------------
1 file changed, 13 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 655133f1ae2b..9a4b11279fe7 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -378,11 +378,6 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md
return -EINVAL;
}
- if (b->index >= q->num_buffers) {
- dprintk(q, 1, "%s: buffer index out of range\n", opname);
- return -EINVAL;
- }
-
vb = vb2_get_buffer(q, b->index);
if (!vb) {
dprintk(q, 1, "%s: buffer %u is NULL\n", opname, b->index);
@@ -834,10 +829,6 @@ int vb2_qbuf(struct vb2_queue *q, struct media_device *mdev,
return -EBUSY;
}
- if (b->index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
- return -EINVAL;
- }
vb = vb2_get_buffer(q, b->index);
if (!vb) {
dprintk(q, 1, "can't find the requested buffer %u\n", b->index);
@@ -909,10 +900,6 @@ int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb)
{
struct vb2_buffer *vb;
- if (eb->index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
- return -EINVAL;
- }
vb = vb2_get_buffer(q, eb->index);
if (!vb) {
dprintk(q, 1, "can't find the requested buffer %u\n", eb->index);
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 20/53] media: Remove duplicated index vs q->num_buffers check
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2_get_buffer() already checks if the requested index is valid.
Stop duplicating this kind of check everywhere.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/common/videobuf2/videobuf2-v4l2.c | 13 -------------
1 file changed, 13 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 655133f1ae2b..9a4b11279fe7 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -378,11 +378,6 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md
return -EINVAL;
}
- if (b->index >= q->num_buffers) {
- dprintk(q, 1, "%s: buffer index out of range\n", opname);
- return -EINVAL;
- }
-
vb = vb2_get_buffer(q, b->index);
if (!vb) {
dprintk(q, 1, "%s: buffer %u is NULL\n", opname, b->index);
@@ -834,10 +829,6 @@ int vb2_qbuf(struct vb2_queue *q, struct media_device *mdev,
return -EBUSY;
}
- if (b->index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
- return -EINVAL;
- }
vb = vb2_get_buffer(q, b->index);
if (!vb) {
dprintk(q, 1, "can't find the requested buffer %u\n", b->index);
@@ -909,10 +900,6 @@ int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb)
{
struct vb2_buffer *vb;
- if (eb->index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
- return -EINVAL;
- }
vb = vb2_get_buffer(q, eb->index);
if (!vb) {
dprintk(q, 1, "can't find the requested buffer %u\n", eb->index);
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 20/53] media: Remove duplicated index vs q->num_buffers check
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2_get_buffer() already checks if the requested index is valid.
Stop duplicating this kind of check everywhere.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/common/videobuf2/videobuf2-v4l2.c | 13 -------------
1 file changed, 13 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 655133f1ae2b..9a4b11279fe7 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -378,11 +378,6 @@ static int vb2_queue_or_prepare_buf(struct vb2_queue *q, struct media_device *md
return -EINVAL;
}
- if (b->index >= q->num_buffers) {
- dprintk(q, 1, "%s: buffer index out of range\n", opname);
- return -EINVAL;
- }
-
vb = vb2_get_buffer(q, b->index);
if (!vb) {
dprintk(q, 1, "%s: buffer %u is NULL\n", opname, b->index);
@@ -834,10 +829,6 @@ int vb2_qbuf(struct vb2_queue *q, struct media_device *mdev,
return -EBUSY;
}
- if (b->index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
- return -EINVAL;
- }
vb = vb2_get_buffer(q, b->index);
if (!vb) {
dprintk(q, 1, "can't find the requested buffer %u\n", b->index);
@@ -909,10 +900,6 @@ int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb)
{
struct vb2_buffer *vb;
- if (eb->index >= q->num_buffers) {
- dprintk(q, 1, "buffer index out of range\n");
- return -EINVAL;
- }
vb = vb2_get_buffer(q, eb->index);
if (!vb) {
dprintk(q, 1, "can't find the requested buffer %u\n", eb->index);
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 21/53] media: core: Add helper to get queue number of buffers
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
In the future a side effect of introducing DELETE_BUFS ioctl is
the create of 'holes' (i.e. unused buffers) in bufs arrays.
To know which entries of the bufs arrays are used a bitmap will
be added in struct vb2_queue. That will also mean that the number
of buffers will be computed given the number of bit set in this bitmap.
To smoothly allow this evolution all drives must stop using
directly num_buffers field from struct vb2_queue.
Let do it in 4 steps:
- Introduce vb2_get_num_buffers() helper
- Rework how create_bufs first buffer index is computed
- Rework all drivers to remove direct calls to queue num_buffers
- Replace num_buffers by a bitmap.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 104 ++++++++++--------
.../media/common/videobuf2/videobuf2-v4l2.c | 2 +-
include/media/videobuf2-core.h | 11 +-
3 files changed, 68 insertions(+), 49 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 023e00aa4848..320f37e46343 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -511,12 +511,12 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
*/
static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
{
- unsigned int buffer;
+ unsigned int buffer = 0;
+ long i = q->max_num_buffers;
struct vb2_buffer *vb;
- for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
- ++buffer) {
- vb = vb2_get_buffer(q, buffer);
+ for (i = q->max_num_buffers; i >= 0 && buffer < buffers; i--) {
+ vb = vb2_get_buffer(q, i);
if (!vb)
continue;
@@ -527,6 +527,7 @@ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
__vb2_buf_dmabuf_put(vb);
else
__vb2_buf_userptr_put(vb);
+ buffer++;
}
}
@@ -538,16 +539,20 @@ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
{
unsigned int buffer;
+ long i = q->max_num_buffers;
lockdep_assert_held(&q->mmap_lock);
/* Call driver-provided cleanup function for each buffer, if provided */
- for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
- ++buffer) {
- struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+ for (i = q->max_num_buffers, buffer = 0; i >= 0 && buffer < buffers; i--) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
- if (vb && vb->planes[0].mem_priv)
+ if (!vb)
+ continue;
+ if (vb->planes[0].mem_priv) {
call_void_vb_qop(vb, buf_cleanup, vb);
+ buffer++;
+ }
}
/* Release video buffer memory */
@@ -558,7 +563,7 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
* Check that all the calls were balanced during the life-time of this
* queue. If not then dump the counters to the kernel log.
*/
- if (q->num_buffers) {
+ if (vb2_get_num_buffers(q)) {
bool unbalanced = q->cnt_start_streaming != q->cnt_stop_streaming ||
q->cnt_prepare_streaming != q->cnt_unprepare_streaming ||
q->cnt_wait_prepare != q->cnt_wait_finish;
@@ -584,7 +589,7 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
q->cnt_stop_streaming = 0;
q->cnt_unprepare_streaming = 0;
}
- for (buffer = 0; buffer < q->num_buffers; ++buffer) {
+ for (buffer = 0; buffer < q->max_num_buffers; buffer++) {
struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
bool unbalanced;
@@ -636,8 +641,7 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
#endif
/* Free vb2 buffers */
- for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
- ++buffer) {
+ for (i = q->max_num_buffers, buffer = 0; i > 0 && buffer < buffers; i--) {
struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
if (!vb)
@@ -645,10 +649,10 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
vb2_queue_remove_buffer(vb);
kfree(vb);
+ buffer++;
}
- q->num_buffers -= buffers;
- if (!q->num_buffers) {
+ if (!vb2_get_num_buffers(q)) {
q->memory = VB2_MEMORY_UNKNOWN;
INIT_LIST_HEAD(&q->queued_list);
}
@@ -679,7 +683,7 @@ EXPORT_SYMBOL(vb2_buffer_in_use);
static bool __buffers_in_use(struct vb2_queue *q)
{
unsigned int buffer;
- for (buffer = 0; buffer < q->num_buffers; ++buffer) {
+ for (buffer = 0; buffer < q->max_num_buffers; ++buffer) {
struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
if (!vb)
@@ -805,6 +809,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int flags, unsigned int *count)
{
unsigned int num_buffers, allocated_buffers, num_planes = 0;
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
unsigned int i;
@@ -820,7 +825,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
return -EBUSY;
}
- if (*count == 0 || q->num_buffers != 0 ||
+ if (*count == 0 || q_num_bufs != 0 ||
(q->memory != VB2_MEMORY_UNKNOWN && q->memory != memory) ||
!verify_coherency_flags(q, non_coherent_mem)) {
/*
@@ -838,7 +843,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
* queued without ever calling STREAMON.
*/
__vb2_queue_cancel(q);
- __vb2_queue_free(q, q->num_buffers);
+ __vb2_queue_free(q, q_num_bufs);
mutex_unlock(&q->mmap_lock);
/*
@@ -938,7 +943,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
if (ret < 0) {
/*
* Note: __vb2_queue_free() will subtract 'allocated_buffers'
- * from q->num_buffers and it will reset q->memory to
+ * from already queued buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
__vb2_queue_free(q, allocated_buffers);
@@ -972,10 +977,11 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int num_planes = 0, num_buffers, allocated_buffers;
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
- bool no_previous_buffers = !q->num_buffers;
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
+ bool no_previous_buffers = !q_num_bufs;
int ret = 0;
- if (q->num_buffers == q->max_num_buffers) {
+ if (q_num_bufs == q->max_num_buffers) {
dprintk(q, 1, "maximum number of buffers already allocated\n");
return -ENOBUFS;
}
@@ -1010,7 +1016,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
return -EINVAL;
}
- num_buffers = min(*count, q->max_num_buffers - q->num_buffers);
+ num_buffers = min(*count, q->max_num_buffers - q_num_bufs);
if (requested_planes && requested_sizes) {
num_planes = requested_planes;
@@ -1042,7 +1048,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
num_buffers = allocated_buffers;
/*
- * q->num_buffers contains the total number of buffers, that the
+ * num_buffers contains the total number of buffers, that the
* queue driver has set up
*/
ret = call_qop(q, queue_setup, q, &num_buffers,
@@ -1063,7 +1069,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
if (ret < 0) {
/*
* Note: __vb2_queue_free() will subtract 'allocated_buffers'
- * from q->num_buffers and it will reset q->memory to
+ * from already queued buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
__vb2_queue_free(q, allocated_buffers);
@@ -1680,7 +1686,7 @@ static int vb2_start_streaming(struct vb2_queue *q)
* Forcefully reclaim buffers if the driver did not
* correctly return them to vb2.
*/
- for (i = 0; i < q->num_buffers; ++i) {
+ for (i = 0; i < q->max_num_buffers; ++i) {
vb = vb2_get_buffer(q, i);
if (!vb)
@@ -2086,9 +2092,8 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
* to vb2 in stop_streaming().
*/
if (WARN_ON(atomic_read(&q->owned_by_drv_count))) {
- for (i = 0; i < q->num_buffers; ++i) {
+ for (i = 0; i < q->max_num_buffers; i++) {
struct vb2_buffer *vb = vb2_get_buffer(q, i);
-
if (!vb)
continue;
@@ -2130,10 +2135,9 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
* call to __fill_user_buffer() after buf_finish(). That order can't
* be changed, so we can't move the buf_finish() to __vb2_dqbuf().
*/
- for (i = 0; i < q->num_buffers; ++i) {
+ for (i = 0; i < q->max_num_buffers; i++) {
struct vb2_buffer *vb;
struct media_request *req;
-
vb = vb2_get_buffer(q, i);
if (!vb)
continue;
@@ -2178,6 +2182,7 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
int vb2_core_streamon(struct vb2_queue *q, unsigned int type)
{
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
int ret;
if (type != q->type) {
@@ -2190,12 +2195,12 @@ int vb2_core_streamon(struct vb2_queue *q, unsigned int type)
return 0;
}
- if (!q->num_buffers) {
+ if (!q_num_bufs) {
dprintk(q, 1, "no buffers have been allocated\n");
return -EINVAL;
}
- if (q->num_buffers < q->min_buffers_needed) {
+ if (q_num_bufs < q->min_buffers_needed) {
dprintk(q, 1, "need at least %u allocated buffers\n",
q->min_buffers_needed);
return -EINVAL;
@@ -2533,7 +2538,7 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_cleanup_fileio(q);
__vb2_queue_cancel(q);
mutex_lock(&q->mmap_lock);
- __vb2_queue_free(q, q->num_buffers);
+ __vb2_queue_free(q, q->max_num_buffers);
kfree(q->bufs);
q->bufs = NULL;
mutex_unlock(&q->mmap_lock);
@@ -2564,7 +2569,7 @@ __poll_t vb2_core_poll(struct vb2_queue *q, struct file *file,
/*
* Start file I/O emulator only if streaming API has not been used yet.
*/
- if (q->num_buffers == 0 && !vb2_fileio_is_active(q)) {
+ if (vb2_get_num_buffers(q) == 0 && !vb2_fileio_is_active(q)) {
if (!q->is_output && (q->io_modes & VB2_READ) &&
(req_events & (EPOLLIN | EPOLLRDNORM))) {
if (__vb2_init_fileio(q, 1))
@@ -2602,7 +2607,7 @@ __poll_t vb2_core_poll(struct vb2_queue *q, struct file *file,
* For output streams you can call write() as long as there are fewer
* buffers queued than there are buffers available.
*/
- if (q->is_output && q->fileio && q->queued_count < q->num_buffers)
+ if (q->is_output && q->fileio && q->queued_count < vb2_get_num_buffers(q))
return EPOLLOUT | EPOLLWRNORM;
if (list_empty(&q->done_list)) {
@@ -2651,8 +2656,8 @@ struct vb2_fileio_buf {
* struct vb2_fileio_data - queue context used by file io emulator
*
* @cur_index: the index of the buffer currently being read from or
- * written to. If equal to q->num_buffers then a new buffer
- * must be dequeued.
+ * written to. If equal to number of already queues buffers
+ * then a new buffer must be dequeued.
* @initial_index: in the read() case all buffers are queued up immediately
* in __vb2_init_fileio() and __vb2_perform_fileio() just cycles
* buffers. However, in the write() case no buffers are initially
@@ -2662,7 +2667,7 @@ struct vb2_fileio_buf {
* buffers. This means that initially __vb2_perform_fileio()
* needs to know what buffer index to use when it is queuing up
* the buffers for the first time. That initial index is stored
- * in this field. Once it is equal to q->num_buffers all
+ * in this field. Once it is equal to num_buffers all
* available buffers have been queued and __vb2_perform_fileio()
* should start the normal dequeue/queue cycle.
*
@@ -2712,7 +2717,7 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
/*
* Check if streaming api has not been already activated.
*/
- if (q->streaming || q->num_buffers > 0)
+ if (q->streaming || vb2_get_num_buffers(q) > 0)
return -EBUSY;
/*
@@ -2762,7 +2767,7 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
/*
* Get kernel address of each buffer.
*/
- for (i = 0; i < q->num_buffers; i++) {
+ for (i = 0; i < vb2_get_num_buffers(q); i++) {
vb = vb2_get_buffer(q, i);
WARN_ON_ONCE(!vb);
@@ -2781,18 +2786,23 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
/*
* Queue all buffers.
*/
- for (i = 0; i < q->num_buffers; i++) {
- ret = vb2_core_qbuf(q, q->bufs[i], NULL, NULL);
+ for (i = 0; i < vb2_get_num_buffers(q); i++) {
+ struct vb2_buffer *vb2 = vb2_get_buffer(q, i);
+
+ if (!vb2)
+ continue;
+
+ ret = vb2_core_qbuf(q, vb2, NULL, NULL);
if (ret)
goto err_reqbufs;
fileio->bufs[i].queued = 1;
}
/*
* All buffers have been queued, so mark that by setting
- * initial_index to q->num_buffers
+ * initial_index to num_buffers
*/
- fileio->initial_index = q->num_buffers;
- fileio->cur_index = q->num_buffers;
+ fileio->initial_index = vb2_get_num_buffers(q);
+ fileio->cur_index = fileio->initial_index;
}
/*
@@ -2986,12 +2996,12 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
* If we are queuing up buffers for the first time, then
* increase initial_index by one.
*/
- if (fileio->initial_index < q->num_buffers)
+ if (fileio->initial_index < vb2_get_num_buffers(q))
fileio->initial_index++;
/*
* The next buffer to use is either a buffer that's going to be
- * queued for the first time (initial_index < q->num_buffers)
- * or it is equal to q->num_buffers, meaning that the next
+ * queued for the first time (initial_index < num_buffers)
+ * or it is equal to num_buffers, meaning that the next
* time we need to dequeue a buffer since we've now queued up
* all the 'first time' buffers.
*/
@@ -3038,7 +3048,7 @@ static int vb2_thread(void *data)
int ret = 0;
if (q->is_output) {
- prequeue = q->num_buffers;
+ prequeue = vb2_get_num_buffers(q);
copy_timestamp = q->copy_timestamp;
}
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 9a4b11279fe7..304163e27d10 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -628,7 +628,7 @@ struct vb2_buffer *vb2_find_buffer(struct vb2_queue *q, u64 timestamp)
* This loop doesn't scale if there is a really large number of buffers.
* Maybe something more efficient will be needed in this case.
*/
- for (i = 0; i < q->num_buffers; i++) {
+ for (i = 0; i < q->max_num_buffers; i++) {
vb2 = vb2_get_buffer(q, i);
if (!vb2)
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 1d6d68e8a711..dffb9647d4d1 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -1141,6 +1141,15 @@ static inline bool vb2_fileio_is_active(struct vb2_queue *q)
return q->fileio;
}
+/**
+ * vb2_get_num_buffers() - get the number of buffer in a queue
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ */
+static inline unsigned int vb2_get_num_buffers(struct vb2_queue *q)
+{
+ return q->num_buffers;
+}
+
/**
* vb2_is_busy() - return busy status of the queue.
* @q: pointer to &struct vb2_queue with videobuf2 queue.
@@ -1149,7 +1158,7 @@ static inline bool vb2_fileio_is_active(struct vb2_queue *q)
*/
static inline bool vb2_is_busy(struct vb2_queue *q)
{
- return (q->num_buffers > 0);
+ return (vb2_get_num_buffers(q) > 0);
}
/**
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 21/53] media: core: Add helper to get queue number of buffers
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
In the future a side effect of introducing DELETE_BUFS ioctl is
the create of 'holes' (i.e. unused buffers) in bufs arrays.
To know which entries of the bufs arrays are used a bitmap will
be added in struct vb2_queue. That will also mean that the number
of buffers will be computed given the number of bit set in this bitmap.
To smoothly allow this evolution all drives must stop using
directly num_buffers field from struct vb2_queue.
Let do it in 4 steps:
- Introduce vb2_get_num_buffers() helper
- Rework how create_bufs first buffer index is computed
- Rework all drivers to remove direct calls to queue num_buffers
- Replace num_buffers by a bitmap.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 104 ++++++++++--------
.../media/common/videobuf2/videobuf2-v4l2.c | 2 +-
include/media/videobuf2-core.h | 11 +-
3 files changed, 68 insertions(+), 49 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 023e00aa4848..320f37e46343 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -511,12 +511,12 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
*/
static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
{
- unsigned int buffer;
+ unsigned int buffer = 0;
+ long i = q->max_num_buffers;
struct vb2_buffer *vb;
- for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
- ++buffer) {
- vb = vb2_get_buffer(q, buffer);
+ for (i = q->max_num_buffers; i >= 0 && buffer < buffers; i--) {
+ vb = vb2_get_buffer(q, i);
if (!vb)
continue;
@@ -527,6 +527,7 @@ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
__vb2_buf_dmabuf_put(vb);
else
__vb2_buf_userptr_put(vb);
+ buffer++;
}
}
@@ -538,16 +539,20 @@ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
{
unsigned int buffer;
+ long i = q->max_num_buffers;
lockdep_assert_held(&q->mmap_lock);
/* Call driver-provided cleanup function for each buffer, if provided */
- for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
- ++buffer) {
- struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+ for (i = q->max_num_buffers, buffer = 0; i >= 0 && buffer < buffers; i--) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
- if (vb && vb->planes[0].mem_priv)
+ if (!vb)
+ continue;
+ if (vb->planes[0].mem_priv) {
call_void_vb_qop(vb, buf_cleanup, vb);
+ buffer++;
+ }
}
/* Release video buffer memory */
@@ -558,7 +563,7 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
* Check that all the calls were balanced during the life-time of this
* queue. If not then dump the counters to the kernel log.
*/
- if (q->num_buffers) {
+ if (vb2_get_num_buffers(q)) {
bool unbalanced = q->cnt_start_streaming != q->cnt_stop_streaming ||
q->cnt_prepare_streaming != q->cnt_unprepare_streaming ||
q->cnt_wait_prepare != q->cnt_wait_finish;
@@ -584,7 +589,7 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
q->cnt_stop_streaming = 0;
q->cnt_unprepare_streaming = 0;
}
- for (buffer = 0; buffer < q->num_buffers; ++buffer) {
+ for (buffer = 0; buffer < q->max_num_buffers; buffer++) {
struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
bool unbalanced;
@@ -636,8 +641,7 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
#endif
/* Free vb2 buffers */
- for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
- ++buffer) {
+ for (i = q->max_num_buffers, buffer = 0; i > 0 && buffer < buffers; i--) {
struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
if (!vb)
@@ -645,10 +649,10 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
vb2_queue_remove_buffer(vb);
kfree(vb);
+ buffer++;
}
- q->num_buffers -= buffers;
- if (!q->num_buffers) {
+ if (!vb2_get_num_buffers(q)) {
q->memory = VB2_MEMORY_UNKNOWN;
INIT_LIST_HEAD(&q->queued_list);
}
@@ -679,7 +683,7 @@ EXPORT_SYMBOL(vb2_buffer_in_use);
static bool __buffers_in_use(struct vb2_queue *q)
{
unsigned int buffer;
- for (buffer = 0; buffer < q->num_buffers; ++buffer) {
+ for (buffer = 0; buffer < q->max_num_buffers; ++buffer) {
struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
if (!vb)
@@ -805,6 +809,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int flags, unsigned int *count)
{
unsigned int num_buffers, allocated_buffers, num_planes = 0;
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
unsigned int i;
@@ -820,7 +825,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
return -EBUSY;
}
- if (*count == 0 || q->num_buffers != 0 ||
+ if (*count == 0 || q_num_bufs != 0 ||
(q->memory != VB2_MEMORY_UNKNOWN && q->memory != memory) ||
!verify_coherency_flags(q, non_coherent_mem)) {
/*
@@ -838,7 +843,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
* queued without ever calling STREAMON.
*/
__vb2_queue_cancel(q);
- __vb2_queue_free(q, q->num_buffers);
+ __vb2_queue_free(q, q_num_bufs);
mutex_unlock(&q->mmap_lock);
/*
@@ -938,7 +943,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
if (ret < 0) {
/*
* Note: __vb2_queue_free() will subtract 'allocated_buffers'
- * from q->num_buffers and it will reset q->memory to
+ * from already queued buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
__vb2_queue_free(q, allocated_buffers);
@@ -972,10 +977,11 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int num_planes = 0, num_buffers, allocated_buffers;
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
- bool no_previous_buffers = !q->num_buffers;
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
+ bool no_previous_buffers = !q_num_bufs;
int ret = 0;
- if (q->num_buffers == q->max_num_buffers) {
+ if (q_num_bufs == q->max_num_buffers) {
dprintk(q, 1, "maximum number of buffers already allocated\n");
return -ENOBUFS;
}
@@ -1010,7 +1016,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
return -EINVAL;
}
- num_buffers = min(*count, q->max_num_buffers - q->num_buffers);
+ num_buffers = min(*count, q->max_num_buffers - q_num_bufs);
if (requested_planes && requested_sizes) {
num_planes = requested_planes;
@@ -1042,7 +1048,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
num_buffers = allocated_buffers;
/*
- * q->num_buffers contains the total number of buffers, that the
+ * num_buffers contains the total number of buffers, that the
* queue driver has set up
*/
ret = call_qop(q, queue_setup, q, &num_buffers,
@@ -1063,7 +1069,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
if (ret < 0) {
/*
* Note: __vb2_queue_free() will subtract 'allocated_buffers'
- * from q->num_buffers and it will reset q->memory to
+ * from already queued buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
__vb2_queue_free(q, allocated_buffers);
@@ -1680,7 +1686,7 @@ static int vb2_start_streaming(struct vb2_queue *q)
* Forcefully reclaim buffers if the driver did not
* correctly return them to vb2.
*/
- for (i = 0; i < q->num_buffers; ++i) {
+ for (i = 0; i < q->max_num_buffers; ++i) {
vb = vb2_get_buffer(q, i);
if (!vb)
@@ -2086,9 +2092,8 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
* to vb2 in stop_streaming().
*/
if (WARN_ON(atomic_read(&q->owned_by_drv_count))) {
- for (i = 0; i < q->num_buffers; ++i) {
+ for (i = 0; i < q->max_num_buffers; i++) {
struct vb2_buffer *vb = vb2_get_buffer(q, i);
-
if (!vb)
continue;
@@ -2130,10 +2135,9 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
* call to __fill_user_buffer() after buf_finish(). That order can't
* be changed, so we can't move the buf_finish() to __vb2_dqbuf().
*/
- for (i = 0; i < q->num_buffers; ++i) {
+ for (i = 0; i < q->max_num_buffers; i++) {
struct vb2_buffer *vb;
struct media_request *req;
-
vb = vb2_get_buffer(q, i);
if (!vb)
continue;
@@ -2178,6 +2182,7 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
int vb2_core_streamon(struct vb2_queue *q, unsigned int type)
{
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
int ret;
if (type != q->type) {
@@ -2190,12 +2195,12 @@ int vb2_core_streamon(struct vb2_queue *q, unsigned int type)
return 0;
}
- if (!q->num_buffers) {
+ if (!q_num_bufs) {
dprintk(q, 1, "no buffers have been allocated\n");
return -EINVAL;
}
- if (q->num_buffers < q->min_buffers_needed) {
+ if (q_num_bufs < q->min_buffers_needed) {
dprintk(q, 1, "need at least %u allocated buffers\n",
q->min_buffers_needed);
return -EINVAL;
@@ -2533,7 +2538,7 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_cleanup_fileio(q);
__vb2_queue_cancel(q);
mutex_lock(&q->mmap_lock);
- __vb2_queue_free(q, q->num_buffers);
+ __vb2_queue_free(q, q->max_num_buffers);
kfree(q->bufs);
q->bufs = NULL;
mutex_unlock(&q->mmap_lock);
@@ -2564,7 +2569,7 @@ __poll_t vb2_core_poll(struct vb2_queue *q, struct file *file,
/*
* Start file I/O emulator only if streaming API has not been used yet.
*/
- if (q->num_buffers == 0 && !vb2_fileio_is_active(q)) {
+ if (vb2_get_num_buffers(q) == 0 && !vb2_fileio_is_active(q)) {
if (!q->is_output && (q->io_modes & VB2_READ) &&
(req_events & (EPOLLIN | EPOLLRDNORM))) {
if (__vb2_init_fileio(q, 1))
@@ -2602,7 +2607,7 @@ __poll_t vb2_core_poll(struct vb2_queue *q, struct file *file,
* For output streams you can call write() as long as there are fewer
* buffers queued than there are buffers available.
*/
- if (q->is_output && q->fileio && q->queued_count < q->num_buffers)
+ if (q->is_output && q->fileio && q->queued_count < vb2_get_num_buffers(q))
return EPOLLOUT | EPOLLWRNORM;
if (list_empty(&q->done_list)) {
@@ -2651,8 +2656,8 @@ struct vb2_fileio_buf {
* struct vb2_fileio_data - queue context used by file io emulator
*
* @cur_index: the index of the buffer currently being read from or
- * written to. If equal to q->num_buffers then a new buffer
- * must be dequeued.
+ * written to. If equal to number of already queues buffers
+ * then a new buffer must be dequeued.
* @initial_index: in the read() case all buffers are queued up immediately
* in __vb2_init_fileio() and __vb2_perform_fileio() just cycles
* buffers. However, in the write() case no buffers are initially
@@ -2662,7 +2667,7 @@ struct vb2_fileio_buf {
* buffers. This means that initially __vb2_perform_fileio()
* needs to know what buffer index to use when it is queuing up
* the buffers for the first time. That initial index is stored
- * in this field. Once it is equal to q->num_buffers all
+ * in this field. Once it is equal to num_buffers all
* available buffers have been queued and __vb2_perform_fileio()
* should start the normal dequeue/queue cycle.
*
@@ -2712,7 +2717,7 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
/*
* Check if streaming api has not been already activated.
*/
- if (q->streaming || q->num_buffers > 0)
+ if (q->streaming || vb2_get_num_buffers(q) > 0)
return -EBUSY;
/*
@@ -2762,7 +2767,7 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
/*
* Get kernel address of each buffer.
*/
- for (i = 0; i < q->num_buffers; i++) {
+ for (i = 0; i < vb2_get_num_buffers(q); i++) {
vb = vb2_get_buffer(q, i);
WARN_ON_ONCE(!vb);
@@ -2781,18 +2786,23 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
/*
* Queue all buffers.
*/
- for (i = 0; i < q->num_buffers; i++) {
- ret = vb2_core_qbuf(q, q->bufs[i], NULL, NULL);
+ for (i = 0; i < vb2_get_num_buffers(q); i++) {
+ struct vb2_buffer *vb2 = vb2_get_buffer(q, i);
+
+ if (!vb2)
+ continue;
+
+ ret = vb2_core_qbuf(q, vb2, NULL, NULL);
if (ret)
goto err_reqbufs;
fileio->bufs[i].queued = 1;
}
/*
* All buffers have been queued, so mark that by setting
- * initial_index to q->num_buffers
+ * initial_index to num_buffers
*/
- fileio->initial_index = q->num_buffers;
- fileio->cur_index = q->num_buffers;
+ fileio->initial_index = vb2_get_num_buffers(q);
+ fileio->cur_index = fileio->initial_index;
}
/*
@@ -2986,12 +2996,12 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
* If we are queuing up buffers for the first time, then
* increase initial_index by one.
*/
- if (fileio->initial_index < q->num_buffers)
+ if (fileio->initial_index < vb2_get_num_buffers(q))
fileio->initial_index++;
/*
* The next buffer to use is either a buffer that's going to be
- * queued for the first time (initial_index < q->num_buffers)
- * or it is equal to q->num_buffers, meaning that the next
+ * queued for the first time (initial_index < num_buffers)
+ * or it is equal to num_buffers, meaning that the next
* time we need to dequeue a buffer since we've now queued up
* all the 'first time' buffers.
*/
@@ -3038,7 +3048,7 @@ static int vb2_thread(void *data)
int ret = 0;
if (q->is_output) {
- prequeue = q->num_buffers;
+ prequeue = vb2_get_num_buffers(q);
copy_timestamp = q->copy_timestamp;
}
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 9a4b11279fe7..304163e27d10 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -628,7 +628,7 @@ struct vb2_buffer *vb2_find_buffer(struct vb2_queue *q, u64 timestamp)
* This loop doesn't scale if there is a really large number of buffers.
* Maybe something more efficient will be needed in this case.
*/
- for (i = 0; i < q->num_buffers; i++) {
+ for (i = 0; i < q->max_num_buffers; i++) {
vb2 = vb2_get_buffer(q, i);
if (!vb2)
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 1d6d68e8a711..dffb9647d4d1 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -1141,6 +1141,15 @@ static inline bool vb2_fileio_is_active(struct vb2_queue *q)
return q->fileio;
}
+/**
+ * vb2_get_num_buffers() - get the number of buffer in a queue
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ */
+static inline unsigned int vb2_get_num_buffers(struct vb2_queue *q)
+{
+ return q->num_buffers;
+}
+
/**
* vb2_is_busy() - return busy status of the queue.
* @q: pointer to &struct vb2_queue with videobuf2 queue.
@@ -1149,7 +1158,7 @@ static inline bool vb2_fileio_is_active(struct vb2_queue *q)
*/
static inline bool vb2_is_busy(struct vb2_queue *q)
{
- return (q->num_buffers > 0);
+ return (vb2_get_num_buffers(q) > 0);
}
/**
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 21/53] media: core: Add helper to get queue number of buffers
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
In the future a side effect of introducing DELETE_BUFS ioctl is
the create of 'holes' (i.e. unused buffers) in bufs arrays.
To know which entries of the bufs arrays are used a bitmap will
be added in struct vb2_queue. That will also mean that the number
of buffers will be computed given the number of bit set in this bitmap.
To smoothly allow this evolution all drives must stop using
directly num_buffers field from struct vb2_queue.
Let do it in 4 steps:
- Introduce vb2_get_num_buffers() helper
- Rework how create_bufs first buffer index is computed
- Rework all drivers to remove direct calls to queue num_buffers
- Replace num_buffers by a bitmap.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 104 ++++++++++--------
.../media/common/videobuf2/videobuf2-v4l2.c | 2 +-
include/media/videobuf2-core.h | 11 +-
3 files changed, 68 insertions(+), 49 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 023e00aa4848..320f37e46343 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -511,12 +511,12 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
*/
static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
{
- unsigned int buffer;
+ unsigned int buffer = 0;
+ long i = q->max_num_buffers;
struct vb2_buffer *vb;
- for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
- ++buffer) {
- vb = vb2_get_buffer(q, buffer);
+ for (i = q->max_num_buffers; i >= 0 && buffer < buffers; i--) {
+ vb = vb2_get_buffer(q, i);
if (!vb)
continue;
@@ -527,6 +527,7 @@ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
__vb2_buf_dmabuf_put(vb);
else
__vb2_buf_userptr_put(vb);
+ buffer++;
}
}
@@ -538,16 +539,20 @@ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
{
unsigned int buffer;
+ long i = q->max_num_buffers;
lockdep_assert_held(&q->mmap_lock);
/* Call driver-provided cleanup function for each buffer, if provided */
- for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
- ++buffer) {
- struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+ for (i = q->max_num_buffers, buffer = 0; i >= 0 && buffer < buffers; i--) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
- if (vb && vb->planes[0].mem_priv)
+ if (!vb)
+ continue;
+ if (vb->planes[0].mem_priv) {
call_void_vb_qop(vb, buf_cleanup, vb);
+ buffer++;
+ }
}
/* Release video buffer memory */
@@ -558,7 +563,7 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
* Check that all the calls were balanced during the life-time of this
* queue. If not then dump the counters to the kernel log.
*/
- if (q->num_buffers) {
+ if (vb2_get_num_buffers(q)) {
bool unbalanced = q->cnt_start_streaming != q->cnt_stop_streaming ||
q->cnt_prepare_streaming != q->cnt_unprepare_streaming ||
q->cnt_wait_prepare != q->cnt_wait_finish;
@@ -584,7 +589,7 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
q->cnt_stop_streaming = 0;
q->cnt_unprepare_streaming = 0;
}
- for (buffer = 0; buffer < q->num_buffers; ++buffer) {
+ for (buffer = 0; buffer < q->max_num_buffers; buffer++) {
struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
bool unbalanced;
@@ -636,8 +641,7 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
#endif
/* Free vb2 buffers */
- for (buffer = q->num_buffers - buffers; buffer < q->num_buffers;
- ++buffer) {
+ for (i = q->max_num_buffers, buffer = 0; i > 0 && buffer < buffers; i--) {
struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
if (!vb)
@@ -645,10 +649,10 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
vb2_queue_remove_buffer(vb);
kfree(vb);
+ buffer++;
}
- q->num_buffers -= buffers;
- if (!q->num_buffers) {
+ if (!vb2_get_num_buffers(q)) {
q->memory = VB2_MEMORY_UNKNOWN;
INIT_LIST_HEAD(&q->queued_list);
}
@@ -679,7 +683,7 @@ EXPORT_SYMBOL(vb2_buffer_in_use);
static bool __buffers_in_use(struct vb2_queue *q)
{
unsigned int buffer;
- for (buffer = 0; buffer < q->num_buffers; ++buffer) {
+ for (buffer = 0; buffer < q->max_num_buffers; ++buffer) {
struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
if (!vb)
@@ -805,6 +809,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int flags, unsigned int *count)
{
unsigned int num_buffers, allocated_buffers, num_planes = 0;
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
unsigned int i;
@@ -820,7 +825,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
return -EBUSY;
}
- if (*count == 0 || q->num_buffers != 0 ||
+ if (*count == 0 || q_num_bufs != 0 ||
(q->memory != VB2_MEMORY_UNKNOWN && q->memory != memory) ||
!verify_coherency_flags(q, non_coherent_mem)) {
/*
@@ -838,7 +843,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
* queued without ever calling STREAMON.
*/
__vb2_queue_cancel(q);
- __vb2_queue_free(q, q->num_buffers);
+ __vb2_queue_free(q, q_num_bufs);
mutex_unlock(&q->mmap_lock);
/*
@@ -938,7 +943,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
if (ret < 0) {
/*
* Note: __vb2_queue_free() will subtract 'allocated_buffers'
- * from q->num_buffers and it will reset q->memory to
+ * from already queued buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
__vb2_queue_free(q, allocated_buffers);
@@ -972,10 +977,11 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int num_planes = 0, num_buffers, allocated_buffers;
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
- bool no_previous_buffers = !q->num_buffers;
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
+ bool no_previous_buffers = !q_num_bufs;
int ret = 0;
- if (q->num_buffers == q->max_num_buffers) {
+ if (q_num_bufs == q->max_num_buffers) {
dprintk(q, 1, "maximum number of buffers already allocated\n");
return -ENOBUFS;
}
@@ -1010,7 +1016,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
return -EINVAL;
}
- num_buffers = min(*count, q->max_num_buffers - q->num_buffers);
+ num_buffers = min(*count, q->max_num_buffers - q_num_bufs);
if (requested_planes && requested_sizes) {
num_planes = requested_planes;
@@ -1042,7 +1048,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
num_buffers = allocated_buffers;
/*
- * q->num_buffers contains the total number of buffers, that the
+ * num_buffers contains the total number of buffers, that the
* queue driver has set up
*/
ret = call_qop(q, queue_setup, q, &num_buffers,
@@ -1063,7 +1069,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
if (ret < 0) {
/*
* Note: __vb2_queue_free() will subtract 'allocated_buffers'
- * from q->num_buffers and it will reset q->memory to
+ * from already queued buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
__vb2_queue_free(q, allocated_buffers);
@@ -1680,7 +1686,7 @@ static int vb2_start_streaming(struct vb2_queue *q)
* Forcefully reclaim buffers if the driver did not
* correctly return them to vb2.
*/
- for (i = 0; i < q->num_buffers; ++i) {
+ for (i = 0; i < q->max_num_buffers; ++i) {
vb = vb2_get_buffer(q, i);
if (!vb)
@@ -2086,9 +2092,8 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
* to vb2 in stop_streaming().
*/
if (WARN_ON(atomic_read(&q->owned_by_drv_count))) {
- for (i = 0; i < q->num_buffers; ++i) {
+ for (i = 0; i < q->max_num_buffers; i++) {
struct vb2_buffer *vb = vb2_get_buffer(q, i);
-
if (!vb)
continue;
@@ -2130,10 +2135,9 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
* call to __fill_user_buffer() after buf_finish(). That order can't
* be changed, so we can't move the buf_finish() to __vb2_dqbuf().
*/
- for (i = 0; i < q->num_buffers; ++i) {
+ for (i = 0; i < q->max_num_buffers; i++) {
struct vb2_buffer *vb;
struct media_request *req;
-
vb = vb2_get_buffer(q, i);
if (!vb)
continue;
@@ -2178,6 +2182,7 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
int vb2_core_streamon(struct vb2_queue *q, unsigned int type)
{
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
int ret;
if (type != q->type) {
@@ -2190,12 +2195,12 @@ int vb2_core_streamon(struct vb2_queue *q, unsigned int type)
return 0;
}
- if (!q->num_buffers) {
+ if (!q_num_bufs) {
dprintk(q, 1, "no buffers have been allocated\n");
return -EINVAL;
}
- if (q->num_buffers < q->min_buffers_needed) {
+ if (q_num_bufs < q->min_buffers_needed) {
dprintk(q, 1, "need at least %u allocated buffers\n",
q->min_buffers_needed);
return -EINVAL;
@@ -2533,7 +2538,7 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_cleanup_fileio(q);
__vb2_queue_cancel(q);
mutex_lock(&q->mmap_lock);
- __vb2_queue_free(q, q->num_buffers);
+ __vb2_queue_free(q, q->max_num_buffers);
kfree(q->bufs);
q->bufs = NULL;
mutex_unlock(&q->mmap_lock);
@@ -2564,7 +2569,7 @@ __poll_t vb2_core_poll(struct vb2_queue *q, struct file *file,
/*
* Start file I/O emulator only if streaming API has not been used yet.
*/
- if (q->num_buffers == 0 && !vb2_fileio_is_active(q)) {
+ if (vb2_get_num_buffers(q) == 0 && !vb2_fileio_is_active(q)) {
if (!q->is_output && (q->io_modes & VB2_READ) &&
(req_events & (EPOLLIN | EPOLLRDNORM))) {
if (__vb2_init_fileio(q, 1))
@@ -2602,7 +2607,7 @@ __poll_t vb2_core_poll(struct vb2_queue *q, struct file *file,
* For output streams you can call write() as long as there are fewer
* buffers queued than there are buffers available.
*/
- if (q->is_output && q->fileio && q->queued_count < q->num_buffers)
+ if (q->is_output && q->fileio && q->queued_count < vb2_get_num_buffers(q))
return EPOLLOUT | EPOLLWRNORM;
if (list_empty(&q->done_list)) {
@@ -2651,8 +2656,8 @@ struct vb2_fileio_buf {
* struct vb2_fileio_data - queue context used by file io emulator
*
* @cur_index: the index of the buffer currently being read from or
- * written to. If equal to q->num_buffers then a new buffer
- * must be dequeued.
+ * written to. If equal to number of already queues buffers
+ * then a new buffer must be dequeued.
* @initial_index: in the read() case all buffers are queued up immediately
* in __vb2_init_fileio() and __vb2_perform_fileio() just cycles
* buffers. However, in the write() case no buffers are initially
@@ -2662,7 +2667,7 @@ struct vb2_fileio_buf {
* buffers. This means that initially __vb2_perform_fileio()
* needs to know what buffer index to use when it is queuing up
* the buffers for the first time. That initial index is stored
- * in this field. Once it is equal to q->num_buffers all
+ * in this field. Once it is equal to num_buffers all
* available buffers have been queued and __vb2_perform_fileio()
* should start the normal dequeue/queue cycle.
*
@@ -2712,7 +2717,7 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
/*
* Check if streaming api has not been already activated.
*/
- if (q->streaming || q->num_buffers > 0)
+ if (q->streaming || vb2_get_num_buffers(q) > 0)
return -EBUSY;
/*
@@ -2762,7 +2767,7 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
/*
* Get kernel address of each buffer.
*/
- for (i = 0; i < q->num_buffers; i++) {
+ for (i = 0; i < vb2_get_num_buffers(q); i++) {
vb = vb2_get_buffer(q, i);
WARN_ON_ONCE(!vb);
@@ -2781,18 +2786,23 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read)
/*
* Queue all buffers.
*/
- for (i = 0; i < q->num_buffers; i++) {
- ret = vb2_core_qbuf(q, q->bufs[i], NULL, NULL);
+ for (i = 0; i < vb2_get_num_buffers(q); i++) {
+ struct vb2_buffer *vb2 = vb2_get_buffer(q, i);
+
+ if (!vb2)
+ continue;
+
+ ret = vb2_core_qbuf(q, vb2, NULL, NULL);
if (ret)
goto err_reqbufs;
fileio->bufs[i].queued = 1;
}
/*
* All buffers have been queued, so mark that by setting
- * initial_index to q->num_buffers
+ * initial_index to num_buffers
*/
- fileio->initial_index = q->num_buffers;
- fileio->cur_index = q->num_buffers;
+ fileio->initial_index = vb2_get_num_buffers(q);
+ fileio->cur_index = fileio->initial_index;
}
/*
@@ -2986,12 +2996,12 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
* If we are queuing up buffers for the first time, then
* increase initial_index by one.
*/
- if (fileio->initial_index < q->num_buffers)
+ if (fileio->initial_index < vb2_get_num_buffers(q))
fileio->initial_index++;
/*
* The next buffer to use is either a buffer that's going to be
- * queued for the first time (initial_index < q->num_buffers)
- * or it is equal to q->num_buffers, meaning that the next
+ * queued for the first time (initial_index < num_buffers)
+ * or it is equal to num_buffers, meaning that the next
* time we need to dequeue a buffer since we've now queued up
* all the 'first time' buffers.
*/
@@ -3038,7 +3048,7 @@ static int vb2_thread(void *data)
int ret = 0;
if (q->is_output) {
- prequeue = q->num_buffers;
+ prequeue = vb2_get_num_buffers(q);
copy_timestamp = q->copy_timestamp;
}
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 9a4b11279fe7..304163e27d10 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -628,7 +628,7 @@ struct vb2_buffer *vb2_find_buffer(struct vb2_queue *q, u64 timestamp)
* This loop doesn't scale if there is a really large number of buffers.
* Maybe something more efficient will be needed in this case.
*/
- for (i = 0; i < q->num_buffers; i++) {
+ for (i = 0; i < q->max_num_buffers; i++) {
vb2 = vb2_get_buffer(q, i);
if (!vb2)
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 1d6d68e8a711..dffb9647d4d1 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -1141,6 +1141,15 @@ static inline bool vb2_fileio_is_active(struct vb2_queue *q)
return q->fileio;
}
+/**
+ * vb2_get_num_buffers() - get the number of buffer in a queue
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ */
+static inline unsigned int vb2_get_num_buffers(struct vb2_queue *q)
+{
+ return q->num_buffers;
+}
+
/**
* vb2_is_busy() - return busy status of the queue.
* @q: pointer to &struct vb2_queue with videobuf2 queue.
@@ -1149,7 +1158,7 @@ static inline bool vb2_fileio_is_active(struct vb2_queue *q)
*/
static inline bool vb2_is_busy(struct vb2_queue *q)
{
- return (q->num_buffers > 0);
+ return (vb2_get_num_buffers(q) > 0);
}
/**
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 22/53] media: dvb-core: Do not initialize twice queue num_buffer field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
The above memset already zeroed all the ctx fields, it is useless
to do it here again.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/dvb-core/dvb_vb2.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c
index 3a966fdf814c..a731b755a0b9 100644
--- a/drivers/media/dvb-core/dvb_vb2.c
+++ b/drivers/media/dvb-core/dvb_vb2.c
@@ -177,7 +177,6 @@ int dvb_vb2_init(struct dvb_vb2_ctx *ctx, const char *name, int nonblocking)
q->ops = &dvb_vb2_qops;
q->mem_ops = &vb2_vmalloc_memops;
q->buf_ops = &dvb_vb2_buf_ops;
- q->num_buffers = 0;
ret = vb2_core_queue_init(q);
if (ret) {
ctx->state = DVB_VB2_STATE_NONE;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 22/53] media: dvb-core: Do not initialize twice queue num_buffer field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
The above memset already zeroed all the ctx fields, it is useless
to do it here again.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/dvb-core/dvb_vb2.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c
index 3a966fdf814c..a731b755a0b9 100644
--- a/drivers/media/dvb-core/dvb_vb2.c
+++ b/drivers/media/dvb-core/dvb_vb2.c
@@ -177,7 +177,6 @@ int dvb_vb2_init(struct dvb_vb2_ctx *ctx, const char *name, int nonblocking)
q->ops = &dvb_vb2_qops;
q->mem_ops = &vb2_vmalloc_memops;
q->buf_ops = &dvb_vb2_buf_ops;
- q->num_buffers = 0;
ret = vb2_core_queue_init(q);
if (ret) {
ctx->state = DVB_VB2_STATE_NONE;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 22/53] media: dvb-core: Do not initialize twice queue num_buffer field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
The above memset already zeroed all the ctx fields, it is useless
to do it here again.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/dvb-core/dvb_vb2.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c
index 3a966fdf814c..a731b755a0b9 100644
--- a/drivers/media/dvb-core/dvb_vb2.c
+++ b/drivers/media/dvb-core/dvb_vb2.c
@@ -177,7 +177,6 @@ int dvb_vb2_init(struct dvb_vb2_ctx *ctx, const char *name, int nonblocking)
q->ops = &dvb_vb2_qops;
q->mem_ops = &vb2_vmalloc_memops;
q->buf_ops = &dvb_vb2_buf_ops;
- q->num_buffers = 0;
ret = vb2_core_queue_init(q);
if (ret) {
ctx->state = DVB_VB2_STATE_NONE;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 23/53] media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
queue_setup checks for a minimum number of buffers so use queue
min_buffers_needed field and remove the check done in
rtl2832_sdr_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c
index 02c619e51641..597b1548ed8b 100644
--- a/drivers/media/dvb-frontends/rtl2832_sdr.c
+++ b/drivers/media/dvb-frontends/rtl2832_sdr.c
@@ -440,14 +440,9 @@ static int rtl2832_sdr_queue_setup(struct vb2_queue *vq,
struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq);
struct platform_device *pdev = dev->pdev;
- dev_dbg(&pdev->dev, "nbuffers=%d\n", *nbuffers);
-
- /* Need at least 8 buffers */
- if (vq->num_buffers + *nbuffers < 8)
- *nbuffers = 8 - vq->num_buffers;
*nplanes = 1;
sizes[0] = PAGE_ALIGN(dev->buffersize);
- dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]);
+ dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
@@ -1364,6 +1359,8 @@ static int rtl2832_sdr_probe(struct platform_device *pdev)
dev->vb_queue.ops = &rtl2832_sdr_vb2_ops;
dev->vb_queue.mem_ops = &vb2_vmalloc_memops;
dev->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ /* Need at least 8 buffers */
+ dev->vb_queue.min_buffers_needed = 8;
ret = vb2_queue_init(&dev->vb_queue);
if (ret) {
dev_err(&pdev->dev, "Could not initialize vb2 queue\n");
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 23/53] media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
queue_setup checks for a minimum number of buffers so use queue
min_buffers_needed field and remove the check done in
rtl2832_sdr_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c
index 02c619e51641..597b1548ed8b 100644
--- a/drivers/media/dvb-frontends/rtl2832_sdr.c
+++ b/drivers/media/dvb-frontends/rtl2832_sdr.c
@@ -440,14 +440,9 @@ static int rtl2832_sdr_queue_setup(struct vb2_queue *vq,
struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq);
struct platform_device *pdev = dev->pdev;
- dev_dbg(&pdev->dev, "nbuffers=%d\n", *nbuffers);
-
- /* Need at least 8 buffers */
- if (vq->num_buffers + *nbuffers < 8)
- *nbuffers = 8 - vq->num_buffers;
*nplanes = 1;
sizes[0] = PAGE_ALIGN(dev->buffersize);
- dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]);
+ dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
@@ -1364,6 +1359,8 @@ static int rtl2832_sdr_probe(struct platform_device *pdev)
dev->vb_queue.ops = &rtl2832_sdr_vb2_ops;
dev->vb_queue.mem_ops = &vb2_vmalloc_memops;
dev->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ /* Need at least 8 buffers */
+ dev->vb_queue.min_buffers_needed = 8;
ret = vb2_queue_init(&dev->vb_queue);
if (ret) {
dev_err(&pdev->dev, "Could not initialize vb2 queue\n");
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 23/53] media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
queue_setup checks for a minimum number of buffers so use queue
min_buffers_needed field and remove the check done in
rtl2832_sdr_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c
index 02c619e51641..597b1548ed8b 100644
--- a/drivers/media/dvb-frontends/rtl2832_sdr.c
+++ b/drivers/media/dvb-frontends/rtl2832_sdr.c
@@ -440,14 +440,9 @@ static int rtl2832_sdr_queue_setup(struct vb2_queue *vq,
struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq);
struct platform_device *pdev = dev->pdev;
- dev_dbg(&pdev->dev, "nbuffers=%d\n", *nbuffers);
-
- /* Need at least 8 buffers */
- if (vq->num_buffers + *nbuffers < 8)
- *nbuffers = 8 - vq->num_buffers;
*nplanes = 1;
sizes[0] = PAGE_ALIGN(dev->buffersize);
- dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]);
+ dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
@@ -1364,6 +1359,8 @@ static int rtl2832_sdr_probe(struct platform_device *pdev)
dev->vb_queue.ops = &rtl2832_sdr_vb2_ops;
dev->vb_queue.mem_ops = &vb2_vmalloc_memops;
dev->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ /* Need at least 8 buffers */
+ dev->vb_queue.min_buffers_needed = 8;
ret = vb2_queue_init(&dev->vb_queue);
if (ret) {
dev_err(&pdev->dev, "Could not initialize vb2 queue\n");
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 24/53] media: video-i2c: Set min_buffers_needed to 2
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 2 and remove the useless check in video-i2c
queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/i2c/video-i2c.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/media/i2c/video-i2c.c b/drivers/media/i2c/video-i2c.c
index 537ebd9fa8d7..5692d0b529d7 100644
--- a/drivers/media/i2c/video-i2c.c
+++ b/drivers/media/i2c/video-i2c.c
@@ -406,9 +406,6 @@ static int queue_setup(struct vb2_queue *vq,
struct video_i2c_data *data = vb2_get_drv_priv(vq);
unsigned int size = data->chip->buffer_size;
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2;
-
if (*nplanes)
return sizes[0] < size ? -EINVAL : 0;
@@ -798,7 +795,7 @@ static int video_i2c_probe(struct i2c_client *client)
queue->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
queue->drv_priv = data;
queue->buf_struct_size = sizeof(struct video_i2c_buffer);
- queue->min_buffers_needed = 1;
+ queue->min_buffers_needed = 2;
queue->ops = &video_i2c_video_qops;
queue->mem_ops = &vb2_vmalloc_memops;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 24/53] media: video-i2c: Set min_buffers_needed to 2
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 2 and remove the useless check in video-i2c
queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/i2c/video-i2c.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/media/i2c/video-i2c.c b/drivers/media/i2c/video-i2c.c
index 537ebd9fa8d7..5692d0b529d7 100644
--- a/drivers/media/i2c/video-i2c.c
+++ b/drivers/media/i2c/video-i2c.c
@@ -406,9 +406,6 @@ static int queue_setup(struct vb2_queue *vq,
struct video_i2c_data *data = vb2_get_drv_priv(vq);
unsigned int size = data->chip->buffer_size;
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2;
-
if (*nplanes)
return sizes[0] < size ? -EINVAL : 0;
@@ -798,7 +795,7 @@ static int video_i2c_probe(struct i2c_client *client)
queue->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
queue->drv_priv = data;
queue->buf_struct_size = sizeof(struct video_i2c_buffer);
- queue->min_buffers_needed = 1;
+ queue->min_buffers_needed = 2;
queue->ops = &video_i2c_video_qops;
queue->mem_ops = &vb2_vmalloc_memops;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 24/53] media: video-i2c: Set min_buffers_needed to 2
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 2 and remove the useless check in video-i2c
queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/i2c/video-i2c.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/media/i2c/video-i2c.c b/drivers/media/i2c/video-i2c.c
index 537ebd9fa8d7..5692d0b529d7 100644
--- a/drivers/media/i2c/video-i2c.c
+++ b/drivers/media/i2c/video-i2c.c
@@ -406,9 +406,6 @@ static int queue_setup(struct vb2_queue *vq,
struct video_i2c_data *data = vb2_get_drv_priv(vq);
unsigned int size = data->chip->buffer_size;
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2;
-
if (*nplanes)
return sizes[0] < size ? -EINVAL : 0;
@@ -798,7 +795,7 @@ static int video_i2c_probe(struct i2c_client *client)
queue->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
queue->drv_priv = data;
queue->buf_struct_size = sizeof(struct video_i2c_buffer);
- queue->min_buffers_needed = 1;
+ queue->min_buffers_needed = 2;
queue->ops = &video_i2c_video_qops;
queue->mem_ops = &vb2_vmalloc_memops;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 25/53] media: pci: cx18: Set correct value to min_buffers_needed field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Set queue min_buffers_needed field to 3 and remove the useless
check.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/cx18/cx18-streams.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/media/pci/cx18/cx18-streams.c b/drivers/media/pci/cx18/cx18-streams.c
index 597472754c4c..6ed2c9fb882c 100644
--- a/drivers/media/pci/cx18/cx18-streams.c
+++ b/drivers/media/pci/cx18/cx18-streams.c
@@ -117,13 +117,6 @@ static int cx18_queue_setup(struct vb2_queue *vq,
else
szimage = cx->cxhdl.height * 720 * 2;
- /*
- * Let's request at least three buffers: two for the
- * DMA engine and one for userspace.
- */
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < szimage)
return -EINVAL;
@@ -286,7 +279,11 @@ static int cx18_stream_init(struct cx18 *cx, int type)
s->vidq.ops = &cx18_vb2_qops;
s->vidq.mem_ops = &vb2_vmalloc_memops;
s->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- s->vidq.min_buffers_needed = 2;
+ /*
+ * Let's request at least three buffers: two for the
+ * DMA engine and one for userspace.
+ */
+ s->vidq.min_buffers_needed = 3;
s->vidq.gfp_flags = GFP_DMA32;
s->vidq.dev = &cx->pci_dev->dev;
s->vidq.lock = &cx->serialize_lock;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 25/53] media: pci: cx18: Set correct value to min_buffers_needed field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Set queue min_buffers_needed field to 3 and remove the useless
check.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/cx18/cx18-streams.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/media/pci/cx18/cx18-streams.c b/drivers/media/pci/cx18/cx18-streams.c
index 597472754c4c..6ed2c9fb882c 100644
--- a/drivers/media/pci/cx18/cx18-streams.c
+++ b/drivers/media/pci/cx18/cx18-streams.c
@@ -117,13 +117,6 @@ static int cx18_queue_setup(struct vb2_queue *vq,
else
szimage = cx->cxhdl.height * 720 * 2;
- /*
- * Let's request at least three buffers: two for the
- * DMA engine and one for userspace.
- */
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < szimage)
return -EINVAL;
@@ -286,7 +279,11 @@ static int cx18_stream_init(struct cx18 *cx, int type)
s->vidq.ops = &cx18_vb2_qops;
s->vidq.mem_ops = &vb2_vmalloc_memops;
s->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- s->vidq.min_buffers_needed = 2;
+ /*
+ * Let's request at least three buffers: two for the
+ * DMA engine and one for userspace.
+ */
+ s->vidq.min_buffers_needed = 3;
s->vidq.gfp_flags = GFP_DMA32;
s->vidq.dev = &cx->pci_dev->dev;
s->vidq.lock = &cx->serialize_lock;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 25/53] media: pci: cx18: Set correct value to min_buffers_needed field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Set queue min_buffers_needed field to 3 and remove the useless
check.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/cx18/cx18-streams.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/media/pci/cx18/cx18-streams.c b/drivers/media/pci/cx18/cx18-streams.c
index 597472754c4c..6ed2c9fb882c 100644
--- a/drivers/media/pci/cx18/cx18-streams.c
+++ b/drivers/media/pci/cx18/cx18-streams.c
@@ -117,13 +117,6 @@ static int cx18_queue_setup(struct vb2_queue *vq,
else
szimage = cx->cxhdl.height * 720 * 2;
- /*
- * Let's request at least three buffers: two for the
- * DMA engine and one for userspace.
- */
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < szimage)
return -EINVAL;
@@ -286,7 +279,11 @@ static int cx18_stream_init(struct cx18 *cx, int type)
s->vidq.ops = &cx18_vb2_qops;
s->vidq.mem_ops = &vb2_vmalloc_memops;
s->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- s->vidq.min_buffers_needed = 2;
+ /*
+ * Let's request at least three buffers: two for the
+ * DMA engine and one for userspace.
+ */
+ s->vidq.min_buffers_needed = 3;
s->vidq.gfp_flags = GFP_DMA32;
s->vidq.dev = &cx->pci_dev->dev;
s->vidq.lock = &cx->serialize_lock;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 26/53] media: pci: dt3155: Remove useless check
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
min_buffers_needed is already set to 2 so remove this useless
check.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/dt3155/dt3155.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/media/pci/dt3155/dt3155.c b/drivers/media/pci/dt3155/dt3155.c
index 548156b199cc..d09cde2f6ee4 100644
--- a/drivers/media/pci/dt3155/dt3155.c
+++ b/drivers/media/pci/dt3155/dt3155.c
@@ -128,8 +128,6 @@ dt3155_queue_setup(struct vb2_queue *vq,
struct dt3155_priv *pd = vb2_get_drv_priv(vq);
unsigned size = pd->width * pd->height;
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
if (*num_planes)
return sizes[0] < size ? -EINVAL : 0;
*num_planes = 1;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 26/53] media: pci: dt3155: Remove useless check
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
min_buffers_needed is already set to 2 so remove this useless
check.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/dt3155/dt3155.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/media/pci/dt3155/dt3155.c b/drivers/media/pci/dt3155/dt3155.c
index 548156b199cc..d09cde2f6ee4 100644
--- a/drivers/media/pci/dt3155/dt3155.c
+++ b/drivers/media/pci/dt3155/dt3155.c
@@ -128,8 +128,6 @@ dt3155_queue_setup(struct vb2_queue *vq,
struct dt3155_priv *pd = vb2_get_drv_priv(vq);
unsigned size = pd->width * pd->height;
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
if (*num_planes)
return sizes[0] < size ? -EINVAL : 0;
*num_planes = 1;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 26/53] media: pci: dt3155: Remove useless check
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
min_buffers_needed is already set to 2 so remove this useless
check.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/dt3155/dt3155.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/media/pci/dt3155/dt3155.c b/drivers/media/pci/dt3155/dt3155.c
index 548156b199cc..d09cde2f6ee4 100644
--- a/drivers/media/pci/dt3155/dt3155.c
+++ b/drivers/media/pci/dt3155/dt3155.c
@@ -128,8 +128,6 @@ dt3155_queue_setup(struct vb2_queue *vq,
struct dt3155_priv *pd = vb2_get_drv_priv(vq);
unsigned size = pd->width * pd->height;
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
if (*num_planes)
return sizes[0] < size ? -EINVAL : 0;
*num_planes = 1;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 27/53] media: pci: netup_unidvb: Remove useless number of buffers check
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 core tests this already so remove it.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/netup_unidvb/netup_unidvb_core.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
index d85bfbb77a25..52de9b0af812 100644
--- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
+++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
@@ -297,11 +297,9 @@ static int netup_unidvb_queue_setup(struct vb2_queue *vq,
dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
*nplanes = 1;
- if (vq->num_buffers + *nbuffers < VIDEO_MAX_FRAME)
- *nbuffers = VIDEO_MAX_FRAME - vq->num_buffers;
sizes[0] = PAGE_ALIGN(NETUP_DMA_PACKETS_COUNT * 188);
dev_dbg(&dma->ndev->pci_dev->dev, "%s() nbuffers=%d sizes[0]=%d\n",
- __func__, *nbuffers, sizes[0]);
+ __func__, vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 27/53] media: pci: netup_unidvb: Remove useless number of buffers check
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 core tests this already so remove it.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/netup_unidvb/netup_unidvb_core.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
index d85bfbb77a25..52de9b0af812 100644
--- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
+++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
@@ -297,11 +297,9 @@ static int netup_unidvb_queue_setup(struct vb2_queue *vq,
dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
*nplanes = 1;
- if (vq->num_buffers + *nbuffers < VIDEO_MAX_FRAME)
- *nbuffers = VIDEO_MAX_FRAME - vq->num_buffers;
sizes[0] = PAGE_ALIGN(NETUP_DMA_PACKETS_COUNT * 188);
dev_dbg(&dma->ndev->pci_dev->dev, "%s() nbuffers=%d sizes[0]=%d\n",
- __func__, *nbuffers, sizes[0]);
+ __func__, vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 27/53] media: pci: netup_unidvb: Remove useless number of buffers check
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 core tests this already so remove it.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/netup_unidvb/netup_unidvb_core.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
index d85bfbb77a25..52de9b0af812 100644
--- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
+++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
@@ -297,11 +297,9 @@ static int netup_unidvb_queue_setup(struct vb2_queue *vq,
dev_dbg(&dma->ndev->pci_dev->dev, "%s()\n", __func__);
*nplanes = 1;
- if (vq->num_buffers + *nbuffers < VIDEO_MAX_FRAME)
- *nbuffers = VIDEO_MAX_FRAME - vq->num_buffers;
sizes[0] = PAGE_ALIGN(NETUP_DMA_PACKETS_COUNT * 188);
dev_dbg(&dma->ndev->pci_dev->dev, "%s() nbuffers=%d sizes[0]=%d\n",
- __func__, *nbuffers, sizes[0]);
+ __func__, vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 28/53] media: pci: tw68: Stop direct calls to queue num_buffers field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Remove tot_bufs < 2 test because min_buffers_needed is already set to 2.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/tw68/tw68-video.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/media/pci/tw68/tw68-video.c b/drivers/media/pci/tw68/tw68-video.c
index 773a18702d36..c0a8257b02ca 100644
--- a/drivers/media/pci/tw68/tw68-video.c
+++ b/drivers/media/pci/tw68/tw68-video.c
@@ -360,13 +360,11 @@ static int tw68_queue_setup(struct vb2_queue *q,
unsigned int sizes[], struct device *alloc_devs[])
{
struct tw68_dev *dev = vb2_get_drv_priv(q);
- unsigned tot_bufs = q->num_buffers + *num_buffers;
+ unsigned tot_bufs = vb2_get_num_buffers(q) + *num_buffers;
unsigned size = (dev->fmt->depth * dev->width * dev->height) >> 3;
- if (tot_bufs < 2)
- tot_bufs = 2;
tot_bufs = tw68_buffer_count(size, tot_bufs);
- *num_buffers = tot_bufs - q->num_buffers;
+ *num_buffers = tot_bufs - vb2_get_num_buffers(q);
/*
* We allow create_bufs, but only if the sizeimage is >= as the
* current sizeimage. The tw68_buffer_count calculation becomes quite
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 28/53] media: pci: tw68: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Remove tot_bufs < 2 test because min_buffers_needed is already set to 2.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/tw68/tw68-video.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/media/pci/tw68/tw68-video.c b/drivers/media/pci/tw68/tw68-video.c
index 773a18702d36..c0a8257b02ca 100644
--- a/drivers/media/pci/tw68/tw68-video.c
+++ b/drivers/media/pci/tw68/tw68-video.c
@@ -360,13 +360,11 @@ static int tw68_queue_setup(struct vb2_queue *q,
unsigned int sizes[], struct device *alloc_devs[])
{
struct tw68_dev *dev = vb2_get_drv_priv(q);
- unsigned tot_bufs = q->num_buffers + *num_buffers;
+ unsigned tot_bufs = vb2_get_num_buffers(q) + *num_buffers;
unsigned size = (dev->fmt->depth * dev->width * dev->height) >> 3;
- if (tot_bufs < 2)
- tot_bufs = 2;
tot_bufs = tw68_buffer_count(size, tot_bufs);
- *num_buffers = tot_bufs - q->num_buffers;
+ *num_buffers = tot_bufs - vb2_get_num_buffers(q);
/*
* We allow create_bufs, but only if the sizeimage is >= as the
* current sizeimage. The tw68_buffer_count calculation becomes quite
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 28/53] media: pci: tw68: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Remove tot_bufs < 2 test because min_buffers_needed is already set to 2.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/tw68/tw68-video.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/media/pci/tw68/tw68-video.c b/drivers/media/pci/tw68/tw68-video.c
index 773a18702d36..c0a8257b02ca 100644
--- a/drivers/media/pci/tw68/tw68-video.c
+++ b/drivers/media/pci/tw68/tw68-video.c
@@ -360,13 +360,11 @@ static int tw68_queue_setup(struct vb2_queue *q,
unsigned int sizes[], struct device *alloc_devs[])
{
struct tw68_dev *dev = vb2_get_drv_priv(q);
- unsigned tot_bufs = q->num_buffers + *num_buffers;
+ unsigned tot_bufs = vb2_get_num_buffers(q) + *num_buffers;
unsigned size = (dev->fmt->depth * dev->width * dev->height) >> 3;
- if (tot_bufs < 2)
- tot_bufs = 2;
tot_bufs = tw68_buffer_count(size, tot_bufs);
- *num_buffers = tot_bufs - q->num_buffers;
+ *num_buffers = tot_bufs - vb2_get_num_buffers(q);
/*
* We allow create_bufs, but only if the sizeimage is >= as the
* current sizeimage. The tw68_buffer_count calculation becomes quite
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 29/53] media: pci: tw686x: Set min_buffers_needed to 3
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 3 and remove the useless check in
tw686x_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/tw686x/tw686x-video.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/media/pci/tw686x/tw686x-video.c b/drivers/media/pci/tw686x/tw686x-video.c
index 3ebf7a2c95f0..74cd864365aa 100644
--- a/drivers/media/pci/tw686x/tw686x-video.c
+++ b/drivers/media/pci/tw686x/tw686x-video.c
@@ -426,13 +426,6 @@ static int tw686x_queue_setup(struct vb2_queue *vq,
unsigned int szimage =
(vc->width * vc->height * vc->format->depth) >> 3;
- /*
- * Let's request at least three buffers: two for the
- * DMA engine and one for userspace.
- */
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < szimage)
return -EINVAL;
@@ -1221,7 +1214,11 @@ int tw686x_video_init(struct tw686x_dev *dev)
vc->vidq.ops = &tw686x_video_qops;
vc->vidq.mem_ops = dev->dma_ops->mem_ops;
vc->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- vc->vidq.min_buffers_needed = 2;
+ /*
+ * Let's request at least three buffers: two for the
+ * DMA engine and one for userspace.
+ */
+ vc->vidq.min_buffers_needed = 3;
vc->vidq.lock = &vc->vb_mutex;
vc->vidq.gfp_flags = dev->dma_mode != TW686X_DMA_MODE_MEMCPY ?
GFP_DMA32 : 0;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 29/53] media: pci: tw686x: Set min_buffers_needed to 3
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 3 and remove the useless check in
tw686x_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/tw686x/tw686x-video.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/media/pci/tw686x/tw686x-video.c b/drivers/media/pci/tw686x/tw686x-video.c
index 3ebf7a2c95f0..74cd864365aa 100644
--- a/drivers/media/pci/tw686x/tw686x-video.c
+++ b/drivers/media/pci/tw686x/tw686x-video.c
@@ -426,13 +426,6 @@ static int tw686x_queue_setup(struct vb2_queue *vq,
unsigned int szimage =
(vc->width * vc->height * vc->format->depth) >> 3;
- /*
- * Let's request at least three buffers: two for the
- * DMA engine and one for userspace.
- */
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < szimage)
return -EINVAL;
@@ -1221,7 +1214,11 @@ int tw686x_video_init(struct tw686x_dev *dev)
vc->vidq.ops = &tw686x_video_qops;
vc->vidq.mem_ops = dev->dma_ops->mem_ops;
vc->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- vc->vidq.min_buffers_needed = 2;
+ /*
+ * Let's request at least three buffers: two for the
+ * DMA engine and one for userspace.
+ */
+ vc->vidq.min_buffers_needed = 3;
vc->vidq.lock = &vc->vb_mutex;
vc->vidq.gfp_flags = dev->dma_mode != TW686X_DMA_MODE_MEMCPY ?
GFP_DMA32 : 0;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 29/53] media: pci: tw686x: Set min_buffers_needed to 3
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 3 and remove the useless check in
tw686x_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/pci/tw686x/tw686x-video.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/media/pci/tw686x/tw686x-video.c b/drivers/media/pci/tw686x/tw686x-video.c
index 3ebf7a2c95f0..74cd864365aa 100644
--- a/drivers/media/pci/tw686x/tw686x-video.c
+++ b/drivers/media/pci/tw686x/tw686x-video.c
@@ -426,13 +426,6 @@ static int tw686x_queue_setup(struct vb2_queue *vq,
unsigned int szimage =
(vc->width * vc->height * vc->format->depth) >> 3;
- /*
- * Let's request at least three buffers: two for the
- * DMA engine and one for userspace.
- */
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < szimage)
return -EINVAL;
@@ -1221,7 +1214,11 @@ int tw686x_video_init(struct tw686x_dev *dev)
vc->vidq.ops = &tw686x_video_qops;
vc->vidq.mem_ops = dev->dma_ops->mem_ops;
vc->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- vc->vidq.min_buffers_needed = 2;
+ /*
+ * Let's request at least three buffers: two for the
+ * DMA engine and one for userspace.
+ */
+ vc->vidq.min_buffers_needed = 3;
vc->vidq.lock = &vc->vb_mutex;
vc->vidq.gfp_flags = dev->dma_mode != TW686X_DMA_MODE_MEMCPY ?
GFP_DMA32 : 0;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 30/53] media: amphion: Stop direct calls to queue num_buffers field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/amphion/vpu_dbg.c | 8 ++++----
drivers/media/platform/amphion/vpu_v4l2.c | 4 ++--
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/amphion/vpu_dbg.c b/drivers/media/platform/amphion/vpu_dbg.c
index a462d6fe4ea9..61530ef92ff0 100644
--- a/drivers/media/platform/amphion/vpu_dbg.c
+++ b/drivers/media/platform/amphion/vpu_dbg.c
@@ -87,7 +87,7 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
num = scnprintf(str, sizeof(str),
"output (%2d, %2d): fmt = %c%c%c%c %d x %d, %d;",
vb2_is_streaming(vq),
- vq->num_buffers,
+ vb2_get_num_buffers(vq),
inst->out_format.pixfmt,
inst->out_format.pixfmt >> 8,
inst->out_format.pixfmt >> 16,
@@ -111,7 +111,7 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
num = scnprintf(str, sizeof(str),
"capture(%2d, %2d): fmt = %c%c%c%c %d x %d, %d;",
vb2_is_streaming(vq),
- vq->num_buffers,
+ vb2_get_num_buffers(vq),
inst->cap_format.pixfmt,
inst->cap_format.pixfmt >> 8,
inst->cap_format.pixfmt >> 16,
@@ -139,7 +139,7 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
return 0;
vq = v4l2_m2m_get_src_vq(inst->fh.m2m_ctx);
- for (i = 0; i < vq->num_buffers; i++) {
+ for (i = 0; i < vq->max_allowed_buffers; i++) {
struct vb2_buffer *vb;
struct vb2_v4l2_buffer *vbuf;
@@ -161,7 +161,7 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
}
vq = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx);
- for (i = 0; i < vq->num_buffers; i++) {
+ for (i = 0; i < vq->max_allowed_buffers; i++) {
struct vb2_buffer *vb;
struct vb2_v4l2_buffer *vbuf;
diff --git a/drivers/media/platform/amphion/vpu_v4l2.c b/drivers/media/platform/amphion/vpu_v4l2.c
index 0f6e4c666440..87afb4a18d5d 100644
--- a/drivers/media/platform/amphion/vpu_v4l2.c
+++ b/drivers/media/platform/amphion/vpu_v4l2.c
@@ -439,7 +439,7 @@ int vpu_get_num_buffers(struct vpu_inst *inst, u32 type)
else
q = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx);
- return q->num_buffers;
+ return vb2_get_num_buffers(q);
}
static void vpu_m2m_device_run(void *priv)
@@ -587,7 +587,7 @@ static int vpu_vb2_start_streaming(struct vb2_queue *q, unsigned int count)
fmt->sizeimage[0], fmt->bytesperline[0],
fmt->sizeimage[1], fmt->bytesperline[1],
fmt->sizeimage[2], fmt->bytesperline[2],
- q->num_buffers);
+ vb2_get_num_buffers(q));
vb2_clear_last_buffer_dequeued(q);
ret = call_vop(inst, start, q->type);
if (ret)
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 30/53] media: amphion: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/amphion/vpu_dbg.c | 8 ++++----
drivers/media/platform/amphion/vpu_v4l2.c | 4 ++--
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/amphion/vpu_dbg.c b/drivers/media/platform/amphion/vpu_dbg.c
index a462d6fe4ea9..61530ef92ff0 100644
--- a/drivers/media/platform/amphion/vpu_dbg.c
+++ b/drivers/media/platform/amphion/vpu_dbg.c
@@ -87,7 +87,7 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
num = scnprintf(str, sizeof(str),
"output (%2d, %2d): fmt = %c%c%c%c %d x %d, %d;",
vb2_is_streaming(vq),
- vq->num_buffers,
+ vb2_get_num_buffers(vq),
inst->out_format.pixfmt,
inst->out_format.pixfmt >> 8,
inst->out_format.pixfmt >> 16,
@@ -111,7 +111,7 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
num = scnprintf(str, sizeof(str),
"capture(%2d, %2d): fmt = %c%c%c%c %d x %d, %d;",
vb2_is_streaming(vq),
- vq->num_buffers,
+ vb2_get_num_buffers(vq),
inst->cap_format.pixfmt,
inst->cap_format.pixfmt >> 8,
inst->cap_format.pixfmt >> 16,
@@ -139,7 +139,7 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
return 0;
vq = v4l2_m2m_get_src_vq(inst->fh.m2m_ctx);
- for (i = 0; i < vq->num_buffers; i++) {
+ for (i = 0; i < vq->max_allowed_buffers; i++) {
struct vb2_buffer *vb;
struct vb2_v4l2_buffer *vbuf;
@@ -161,7 +161,7 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
}
vq = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx);
- for (i = 0; i < vq->num_buffers; i++) {
+ for (i = 0; i < vq->max_allowed_buffers; i++) {
struct vb2_buffer *vb;
struct vb2_v4l2_buffer *vbuf;
diff --git a/drivers/media/platform/amphion/vpu_v4l2.c b/drivers/media/platform/amphion/vpu_v4l2.c
index 0f6e4c666440..87afb4a18d5d 100644
--- a/drivers/media/platform/amphion/vpu_v4l2.c
+++ b/drivers/media/platform/amphion/vpu_v4l2.c
@@ -439,7 +439,7 @@ int vpu_get_num_buffers(struct vpu_inst *inst, u32 type)
else
q = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx);
- return q->num_buffers;
+ return vb2_get_num_buffers(q);
}
static void vpu_m2m_device_run(void *priv)
@@ -587,7 +587,7 @@ static int vpu_vb2_start_streaming(struct vb2_queue *q, unsigned int count)
fmt->sizeimage[0], fmt->bytesperline[0],
fmt->sizeimage[1], fmt->bytesperline[1],
fmt->sizeimage[2], fmt->bytesperline[2],
- q->num_buffers);
+ vb2_get_num_buffers(q));
vb2_clear_last_buffer_dequeued(q);
ret = call_vop(inst, start, q->type);
if (ret)
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 30/53] media: amphion: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/amphion/vpu_dbg.c | 8 ++++----
drivers/media/platform/amphion/vpu_v4l2.c | 4 ++--
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/amphion/vpu_dbg.c b/drivers/media/platform/amphion/vpu_dbg.c
index a462d6fe4ea9..61530ef92ff0 100644
--- a/drivers/media/platform/amphion/vpu_dbg.c
+++ b/drivers/media/platform/amphion/vpu_dbg.c
@@ -87,7 +87,7 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
num = scnprintf(str, sizeof(str),
"output (%2d, %2d): fmt = %c%c%c%c %d x %d, %d;",
vb2_is_streaming(vq),
- vq->num_buffers,
+ vb2_get_num_buffers(vq),
inst->out_format.pixfmt,
inst->out_format.pixfmt >> 8,
inst->out_format.pixfmt >> 16,
@@ -111,7 +111,7 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
num = scnprintf(str, sizeof(str),
"capture(%2d, %2d): fmt = %c%c%c%c %d x %d, %d;",
vb2_is_streaming(vq),
- vq->num_buffers,
+ vb2_get_num_buffers(vq),
inst->cap_format.pixfmt,
inst->cap_format.pixfmt >> 8,
inst->cap_format.pixfmt >> 16,
@@ -139,7 +139,7 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
return 0;
vq = v4l2_m2m_get_src_vq(inst->fh.m2m_ctx);
- for (i = 0; i < vq->num_buffers; i++) {
+ for (i = 0; i < vq->max_allowed_buffers; i++) {
struct vb2_buffer *vb;
struct vb2_v4l2_buffer *vbuf;
@@ -161,7 +161,7 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
}
vq = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx);
- for (i = 0; i < vq->num_buffers; i++) {
+ for (i = 0; i < vq->max_allowed_buffers; i++) {
struct vb2_buffer *vb;
struct vb2_v4l2_buffer *vbuf;
diff --git a/drivers/media/platform/amphion/vpu_v4l2.c b/drivers/media/platform/amphion/vpu_v4l2.c
index 0f6e4c666440..87afb4a18d5d 100644
--- a/drivers/media/platform/amphion/vpu_v4l2.c
+++ b/drivers/media/platform/amphion/vpu_v4l2.c
@@ -439,7 +439,7 @@ int vpu_get_num_buffers(struct vpu_inst *inst, u32 type)
else
q = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx);
- return q->num_buffers;
+ return vb2_get_num_buffers(q);
}
static void vpu_m2m_device_run(void *priv)
@@ -587,7 +587,7 @@ static int vpu_vb2_start_streaming(struct vb2_queue *q, unsigned int count)
fmt->sizeimage[0], fmt->bytesperline[0],
fmt->sizeimage[1], fmt->bytesperline[1],
fmt->sizeimage[2], fmt->bytesperline[2],
- q->num_buffers);
+ vb2_get_num_buffers(q));
vb2_clear_last_buffer_dequeued(q);
ret = call_vop(inst, start, q->type);
if (ret)
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 31/53] media: coda: Stop direct calls to queue num_buffers field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/chips-media/coda-common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/chips-media/coda-common.c b/drivers/media/platform/chips-media/coda-common.c
index cc4892129aaf..f1d85758f6dd 100644
--- a/drivers/media/platform/chips-media/coda-common.c
+++ b/drivers/media/platform/chips-media/coda-common.c
@@ -794,7 +794,7 @@ static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f,
if (vb2_is_busy(vq)) {
v4l2_err(&ctx->dev->v4l2_dev, "%s: %s queue busy: %d\n",
- __func__, v4l2_type_names[f->type], vq->num_buffers);
+ __func__, v4l2_type_names[f->type], vb2_get_num_buffers(vq));
return -EBUSY;
}
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 31/53] media: coda: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/chips-media/coda-common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/chips-media/coda-common.c b/drivers/media/platform/chips-media/coda-common.c
index cc4892129aaf..f1d85758f6dd 100644
--- a/drivers/media/platform/chips-media/coda-common.c
+++ b/drivers/media/platform/chips-media/coda-common.c
@@ -794,7 +794,7 @@ static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f,
if (vb2_is_busy(vq)) {
v4l2_err(&ctx->dev->v4l2_dev, "%s: %s queue busy: %d\n",
- __func__, v4l2_type_names[f->type], vq->num_buffers);
+ __func__, v4l2_type_names[f->type], vb2_get_num_buffers(vq));
return -EBUSY;
}
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 31/53] media: coda: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/chips-media/coda-common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/chips-media/coda-common.c b/drivers/media/platform/chips-media/coda-common.c
index cc4892129aaf..f1d85758f6dd 100644
--- a/drivers/media/platform/chips-media/coda-common.c
+++ b/drivers/media/platform/chips-media/coda-common.c
@@ -794,7 +794,7 @@ static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f,
if (vb2_is_busy(vq)) {
v4l2_err(&ctx->dev->v4l2_dev, "%s: %s queue busy: %d\n",
- __func__, v4l2_type_names[f->type], vq->num_buffers);
+ __func__, v4l2_type_names[f->type], vb2_get_num_buffers(vq));
return -EBUSY;
}
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 32/53] media: mediatek: vcodec: Stop direct calls to queue num_buffers field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
index 04948d3eb011..8c580956b905 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
@@ -923,7 +923,7 @@ static int vb2ops_venc_start_streaming(struct vb2_queue *q, unsigned int count)
mtk_v4l2_venc_err(ctx, "pm_runtime_put fail %d", pm_ret);
err_start_stream:
- for (i = 0; i < q->num_buffers; ++i) {
+ for (i = 0; i < q->max_num_buffers; ++i) {
struct vb2_buffer *buf = vb2_get_buffer(q, i);
/*
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 32/53] media: mediatek: vcodec: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
index 04948d3eb011..8c580956b905 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
@@ -923,7 +923,7 @@ static int vb2ops_venc_start_streaming(struct vb2_queue *q, unsigned int count)
mtk_v4l2_venc_err(ctx, "pm_runtime_put fail %d", pm_ret);
err_start_stream:
- for (i = 0; i < q->num_buffers; ++i) {
+ for (i = 0; i < q->max_num_buffers; ++i) {
struct vb2_buffer *buf = vb2_get_buffer(q, i);
/*
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 32/53] media: mediatek: vcodec: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
index 04948d3eb011..8c580956b905 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc.c
@@ -923,7 +923,7 @@ static int vb2ops_venc_start_streaming(struct vb2_queue *q, unsigned int count)
mtk_v4l2_venc_err(ctx, "pm_runtime_put fail %d", pm_ret);
err_start_stream:
- for (i = 0; i < q->num_buffers; ++i) {
+ for (i = 0; i < q->max_num_buffers; ++i) {
struct vb2_buffer *buf = vb2_get_buffer(q, i);
/*
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 33/53] media: nxp: Stop direct calls to queue num_buffers field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/nxp/imx7-media-csi.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/nxp/imx7-media-csi.c b/drivers/media/platform/nxp/imx7-media-csi.c
index 15049c6aab37..4c467fb82789 100644
--- a/drivers/media/platform/nxp/imx7-media-csi.c
+++ b/drivers/media/platform/nxp/imx7-media-csi.c
@@ -1245,6 +1245,7 @@ static int imx7_csi_video_queue_setup(struct vb2_queue *vq,
struct device *alloc_devs[])
{
struct imx7_csi *csi = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
struct v4l2_pix_format *pix = &csi->vdev_fmt;
unsigned int count = *nbuffers;
@@ -1254,14 +1255,14 @@ static int imx7_csi_video_queue_setup(struct vb2_queue *vq,
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < pix->sizeimage)
return -EINVAL;
- count += vq->num_buffers;
+ count += q_num_bufs;
}
count = min_t(__u32, IMX7_CSI_VIDEO_MEM_LIMIT / pix->sizeimage, count);
if (*nplanes)
- *nbuffers = (count < vq->num_buffers) ? 0 :
- count - vq->num_buffers;
+ *nbuffers = (count < q_num_bufs) ? 0 :
+ count - q_num_bufs;
else
*nbuffers = count;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 33/53] media: nxp: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/nxp/imx7-media-csi.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/nxp/imx7-media-csi.c b/drivers/media/platform/nxp/imx7-media-csi.c
index 15049c6aab37..4c467fb82789 100644
--- a/drivers/media/platform/nxp/imx7-media-csi.c
+++ b/drivers/media/platform/nxp/imx7-media-csi.c
@@ -1245,6 +1245,7 @@ static int imx7_csi_video_queue_setup(struct vb2_queue *vq,
struct device *alloc_devs[])
{
struct imx7_csi *csi = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
struct v4l2_pix_format *pix = &csi->vdev_fmt;
unsigned int count = *nbuffers;
@@ -1254,14 +1255,14 @@ static int imx7_csi_video_queue_setup(struct vb2_queue *vq,
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < pix->sizeimage)
return -EINVAL;
- count += vq->num_buffers;
+ count += q_num_bufs;
}
count = min_t(__u32, IMX7_CSI_VIDEO_MEM_LIMIT / pix->sizeimage, count);
if (*nplanes)
- *nbuffers = (count < vq->num_buffers) ? 0 :
- count - vq->num_buffers;
+ *nbuffers = (count < q_num_bufs) ? 0 :
+ count - q_num_bufs;
else
*nbuffers = count;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 33/53] media: nxp: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/nxp/imx7-media-csi.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/nxp/imx7-media-csi.c b/drivers/media/platform/nxp/imx7-media-csi.c
index 15049c6aab37..4c467fb82789 100644
--- a/drivers/media/platform/nxp/imx7-media-csi.c
+++ b/drivers/media/platform/nxp/imx7-media-csi.c
@@ -1245,6 +1245,7 @@ static int imx7_csi_video_queue_setup(struct vb2_queue *vq,
struct device *alloc_devs[])
{
struct imx7_csi *csi = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
struct v4l2_pix_format *pix = &csi->vdev_fmt;
unsigned int count = *nbuffers;
@@ -1254,14 +1255,14 @@ static int imx7_csi_video_queue_setup(struct vb2_queue *vq,
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < pix->sizeimage)
return -EINVAL;
- count += vq->num_buffers;
+ count += q_num_bufs;
}
count = min_t(__u32, IMX7_CSI_VIDEO_MEM_LIMIT / pix->sizeimage, count);
if (*nplanes)
- *nbuffers = (count < vq->num_buffers) ? 0 :
- count - vq->num_buffers;
+ *nbuffers = (count < q_num_bufs) ? 0 :
+ count - q_num_bufs;
else
*nbuffers = count;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 34/53] media: renesas: Set min_buffers_needed to 16
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 16 and remove the useless check in
rcar_drif_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/renesas/rcar_drif.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/media/platform/renesas/rcar_drif.c b/drivers/media/platform/renesas/rcar_drif.c
index 163a4ba61c17..8a9a70565d3f 100644
--- a/drivers/media/platform/renesas/rcar_drif.c
+++ b/drivers/media/platform/renesas/rcar_drif.c
@@ -425,13 +425,9 @@ static int rcar_drif_queue_setup(struct vb2_queue *vq,
{
struct rcar_drif_sdr *sdr = vb2_get_drv_priv(vq);
- /* Need at least 16 buffers */
- if (vq->num_buffers + *num_buffers < 16)
- *num_buffers = 16 - vq->num_buffers;
-
*num_planes = 1;
sizes[0] = PAGE_ALIGN(sdr->fmt->buffersize);
- rdrif_dbg(sdr, "num_bufs %d sizes[0] %d\n", *num_buffers, sizes[0]);
+ rdrif_dbg(sdr, "num_bufs %u sizes[0] %d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
@@ -1311,6 +1307,8 @@ static int rcar_drif_sdr_probe(struct rcar_drif_sdr *sdr)
/* Init videobuf2 queue structure */
sdr->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
sdr->vb_queue.io_modes = VB2_READ | VB2_MMAP | VB2_DMABUF;
+ /* Need at least 16 buffers */
+ sdr->vb_queue.min_buffers_needed = 16;
sdr->vb_queue.drv_priv = sdr;
sdr->vb_queue.buf_struct_size = sizeof(struct rcar_drif_frame_buf);
sdr->vb_queue.ops = &rcar_drif_vb2_ops;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 34/53] media: renesas: Set min_buffers_needed to 16
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 16 and remove the useless check in
rcar_drif_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/renesas/rcar_drif.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/media/platform/renesas/rcar_drif.c b/drivers/media/platform/renesas/rcar_drif.c
index 163a4ba61c17..8a9a70565d3f 100644
--- a/drivers/media/platform/renesas/rcar_drif.c
+++ b/drivers/media/platform/renesas/rcar_drif.c
@@ -425,13 +425,9 @@ static int rcar_drif_queue_setup(struct vb2_queue *vq,
{
struct rcar_drif_sdr *sdr = vb2_get_drv_priv(vq);
- /* Need at least 16 buffers */
- if (vq->num_buffers + *num_buffers < 16)
- *num_buffers = 16 - vq->num_buffers;
-
*num_planes = 1;
sizes[0] = PAGE_ALIGN(sdr->fmt->buffersize);
- rdrif_dbg(sdr, "num_bufs %d sizes[0] %d\n", *num_buffers, sizes[0]);
+ rdrif_dbg(sdr, "num_bufs %u sizes[0] %d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
@@ -1311,6 +1307,8 @@ static int rcar_drif_sdr_probe(struct rcar_drif_sdr *sdr)
/* Init videobuf2 queue structure */
sdr->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
sdr->vb_queue.io_modes = VB2_READ | VB2_MMAP | VB2_DMABUF;
+ /* Need at least 16 buffers */
+ sdr->vb_queue.min_buffers_needed = 16;
sdr->vb_queue.drv_priv = sdr;
sdr->vb_queue.buf_struct_size = sizeof(struct rcar_drif_frame_buf);
sdr->vb_queue.ops = &rcar_drif_vb2_ops;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 34/53] media: renesas: Set min_buffers_needed to 16
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 16 and remove the useless check in
rcar_drif_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/renesas/rcar_drif.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/media/platform/renesas/rcar_drif.c b/drivers/media/platform/renesas/rcar_drif.c
index 163a4ba61c17..8a9a70565d3f 100644
--- a/drivers/media/platform/renesas/rcar_drif.c
+++ b/drivers/media/platform/renesas/rcar_drif.c
@@ -425,13 +425,9 @@ static int rcar_drif_queue_setup(struct vb2_queue *vq,
{
struct rcar_drif_sdr *sdr = vb2_get_drv_priv(vq);
- /* Need at least 16 buffers */
- if (vq->num_buffers + *num_buffers < 16)
- *num_buffers = 16 - vq->num_buffers;
-
*num_planes = 1;
sizes[0] = PAGE_ALIGN(sdr->fmt->buffersize);
- rdrif_dbg(sdr, "num_bufs %d sizes[0] %d\n", *num_buffers, sizes[0]);
+ rdrif_dbg(sdr, "num_bufs %u sizes[0] %d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
@@ -1311,6 +1307,8 @@ static int rcar_drif_sdr_probe(struct rcar_drif_sdr *sdr)
/* Init videobuf2 queue structure */
sdr->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
sdr->vb_queue.io_modes = VB2_READ | VB2_MMAP | VB2_DMABUF;
+ /* Need at least 16 buffers */
+ sdr->vb_queue.min_buffers_needed = 16;
sdr->vb_queue.drv_priv = sdr;
sdr->vb_queue.buf_struct_size = sizeof(struct rcar_drif_frame_buf);
sdr->vb_queue.ops = &rcar_drif_vb2_ops;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 35/53] media: ti: Use queue min_buffers_needed field to set the min number of buffers
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
When queue min_buffers_needed field is correctly set vb2 queue_setup()
does take care of it and we can remove the checks from drivers.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/ti/am437x/am437x-vpfe.c | 7 ++-----
drivers/media/platform/ti/cal/cal-video.c | 5 +----
drivers/media/platform/ti/davinci/vpif_capture.c | 5 +----
drivers/media/platform/ti/davinci/vpif_display.c | 5 +----
drivers/media/platform/ti/omap/omap_vout.c | 5 +++--
5 files changed, 8 insertions(+), 19 deletions(-)
diff --git a/drivers/media/platform/ti/am437x/am437x-vpfe.c b/drivers/media/platform/ti/am437x/am437x-vpfe.c
index 63092013d476..a12c93f8b40e 100644
--- a/drivers/media/platform/ti/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/ti/am437x/am437x-vpfe.c
@@ -1776,9 +1776,6 @@ static int vpfe_queue_setup(struct vb2_queue *vq,
struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
unsigned size = vpfe->fmt.fmt.pix.sizeimage;
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
if (*nplanes) {
if (sizes[0] < size)
return -EINVAL;
@@ -1789,7 +1786,7 @@ static int vpfe_queue_setup(struct vb2_queue *vq,
sizes[0] = size;
vpfe_dbg(1, vpfe,
- "nbuffers=%d, size=%u\n", *nbuffers, sizes[0]);
+ "nbuffers=%u, size=%u\n", vb2_get_num_buffers(vq), sizes[0]);
/* Calculate field offset */
vpfe_calculate_offsets(vpfe);
@@ -2237,7 +2234,7 @@ static int vpfe_probe_complete(struct vpfe_device *vpfe)
q->buf_struct_size = sizeof(struct vpfe_cap_buffer);
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->lock = &vpfe->lock;
- q->min_buffers_needed = 1;
+ q->min_buffers_needed = 3;
q->dev = vpfe->pdev;
err = vb2_queue_init(q);
diff --git a/drivers/media/platform/ti/cal/cal-video.c b/drivers/media/platform/ti/cal/cal-video.c
index a8abcd0fee17..924465b37e5f 100644
--- a/drivers/media/platform/ti/cal/cal-video.c
+++ b/drivers/media/platform/ti/cal/cal-video.c
@@ -604,9 +604,6 @@ static int cal_queue_setup(struct vb2_queue *vq,
struct cal_ctx *ctx = vb2_get_drv_priv(vq);
unsigned int size = ctx->v_fmt.fmt.pix.sizeimage;
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
if (*nplanes) {
if (sizes[0] < size)
return -EINVAL;
@@ -616,7 +613,7 @@ static int cal_queue_setup(struct vb2_queue *vq,
*nplanes = 1;
sizes[0] = size;
- ctx_dbg(3, ctx, "nbuffers=%d, size=%d\n", *nbuffers, sizes[0]);
+ ctx_dbg(3, ctx, "nbuffers=%d, size=%d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
diff --git a/drivers/media/platform/ti/davinci/vpif_capture.c b/drivers/media/platform/ti/davinci/vpif_capture.c
index 99fae8830c41..8a4cc62cf562 100644
--- a/drivers/media/platform/ti/davinci/vpif_capture.c
+++ b/drivers/media/platform/ti/davinci/vpif_capture.c
@@ -122,9 +122,6 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
size = sizes[0];
}
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
*nplanes = 1;
sizes[0] = size;
@@ -1428,7 +1425,7 @@ static int vpif_probe_complete(void)
q->mem_ops = &vb2_dma_contig_memops;
q->buf_struct_size = sizeof(struct vpif_cap_buffer);
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- q->min_buffers_needed = 1;
+ q->min_buffers_needed = 3;
q->lock = &common->lock;
q->dev = vpif_dev;
diff --git a/drivers/media/platform/ti/davinci/vpif_display.c b/drivers/media/platform/ti/davinci/vpif_display.c
index f8ec2991c667..6fc32314cf9c 100644
--- a/drivers/media/platform/ti/davinci/vpif_display.c
+++ b/drivers/media/platform/ti/davinci/vpif_display.c
@@ -122,9 +122,6 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
size = sizes[0];
}
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
*nplanes = 1;
sizes[0] = size;
@@ -1168,7 +1165,7 @@ static int vpif_probe_complete(void)
q->mem_ops = &vb2_dma_contig_memops;
q->buf_struct_size = sizeof(struct vpif_disp_buffer);
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- q->min_buffers_needed = 1;
+ q->min_buffers_needed = 3;
q->lock = &common->lock;
q->dev = vpif_dev;
err = vb2_queue_init(q);
diff --git a/drivers/media/platform/ti/omap/omap_vout.c b/drivers/media/platform/ti/omap/omap_vout.c
index 4143274089c3..72ce903717d3 100644
--- a/drivers/media/platform/ti/omap/omap_vout.c
+++ b/drivers/media/platform/ti/omap/omap_vout.c
@@ -944,10 +944,11 @@ static int omap_vout_vb2_queue_setup(struct vb2_queue *vq,
struct device *alloc_devs[])
{
struct omap_vout_device *vout = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
int size = vout->pix.sizeimage;
- if (is_rotation_enabled(vout) && vq->num_buffers + *nbufs > VRFB_NUM_BUFS) {
- *nbufs = VRFB_NUM_BUFS - vq->num_buffers;
+ if (is_rotation_enabled(vout) && q_num_bufs + *nbufs > VRFB_NUM_BUFS) {
+ *nbufs = VRFB_NUM_BUFS - q_num_bufs;
if (*nbufs == 0)
return -EINVAL;
}
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 35/53] media: ti: Use queue min_buffers_needed field to set the min number of buffers
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
When queue min_buffers_needed field is correctly set vb2 queue_setup()
does take care of it and we can remove the checks from drivers.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/ti/am437x/am437x-vpfe.c | 7 ++-----
drivers/media/platform/ti/cal/cal-video.c | 5 +----
drivers/media/platform/ti/davinci/vpif_capture.c | 5 +----
drivers/media/platform/ti/davinci/vpif_display.c | 5 +----
drivers/media/platform/ti/omap/omap_vout.c | 5 +++--
5 files changed, 8 insertions(+), 19 deletions(-)
diff --git a/drivers/media/platform/ti/am437x/am437x-vpfe.c b/drivers/media/platform/ti/am437x/am437x-vpfe.c
index 63092013d476..a12c93f8b40e 100644
--- a/drivers/media/platform/ti/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/ti/am437x/am437x-vpfe.c
@@ -1776,9 +1776,6 @@ static int vpfe_queue_setup(struct vb2_queue *vq,
struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
unsigned size = vpfe->fmt.fmt.pix.sizeimage;
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
if (*nplanes) {
if (sizes[0] < size)
return -EINVAL;
@@ -1789,7 +1786,7 @@ static int vpfe_queue_setup(struct vb2_queue *vq,
sizes[0] = size;
vpfe_dbg(1, vpfe,
- "nbuffers=%d, size=%u\n", *nbuffers, sizes[0]);
+ "nbuffers=%u, size=%u\n", vb2_get_num_buffers(vq), sizes[0]);
/* Calculate field offset */
vpfe_calculate_offsets(vpfe);
@@ -2237,7 +2234,7 @@ static int vpfe_probe_complete(struct vpfe_device *vpfe)
q->buf_struct_size = sizeof(struct vpfe_cap_buffer);
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->lock = &vpfe->lock;
- q->min_buffers_needed = 1;
+ q->min_buffers_needed = 3;
q->dev = vpfe->pdev;
err = vb2_queue_init(q);
diff --git a/drivers/media/platform/ti/cal/cal-video.c b/drivers/media/platform/ti/cal/cal-video.c
index a8abcd0fee17..924465b37e5f 100644
--- a/drivers/media/platform/ti/cal/cal-video.c
+++ b/drivers/media/platform/ti/cal/cal-video.c
@@ -604,9 +604,6 @@ static int cal_queue_setup(struct vb2_queue *vq,
struct cal_ctx *ctx = vb2_get_drv_priv(vq);
unsigned int size = ctx->v_fmt.fmt.pix.sizeimage;
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
if (*nplanes) {
if (sizes[0] < size)
return -EINVAL;
@@ -616,7 +613,7 @@ static int cal_queue_setup(struct vb2_queue *vq,
*nplanes = 1;
sizes[0] = size;
- ctx_dbg(3, ctx, "nbuffers=%d, size=%d\n", *nbuffers, sizes[0]);
+ ctx_dbg(3, ctx, "nbuffers=%d, size=%d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
diff --git a/drivers/media/platform/ti/davinci/vpif_capture.c b/drivers/media/platform/ti/davinci/vpif_capture.c
index 99fae8830c41..8a4cc62cf562 100644
--- a/drivers/media/platform/ti/davinci/vpif_capture.c
+++ b/drivers/media/platform/ti/davinci/vpif_capture.c
@@ -122,9 +122,6 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
size = sizes[0];
}
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
*nplanes = 1;
sizes[0] = size;
@@ -1428,7 +1425,7 @@ static int vpif_probe_complete(void)
q->mem_ops = &vb2_dma_contig_memops;
q->buf_struct_size = sizeof(struct vpif_cap_buffer);
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- q->min_buffers_needed = 1;
+ q->min_buffers_needed = 3;
q->lock = &common->lock;
q->dev = vpif_dev;
diff --git a/drivers/media/platform/ti/davinci/vpif_display.c b/drivers/media/platform/ti/davinci/vpif_display.c
index f8ec2991c667..6fc32314cf9c 100644
--- a/drivers/media/platform/ti/davinci/vpif_display.c
+++ b/drivers/media/platform/ti/davinci/vpif_display.c
@@ -122,9 +122,6 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
size = sizes[0];
}
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
*nplanes = 1;
sizes[0] = size;
@@ -1168,7 +1165,7 @@ static int vpif_probe_complete(void)
q->mem_ops = &vb2_dma_contig_memops;
q->buf_struct_size = sizeof(struct vpif_disp_buffer);
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- q->min_buffers_needed = 1;
+ q->min_buffers_needed = 3;
q->lock = &common->lock;
q->dev = vpif_dev;
err = vb2_queue_init(q);
diff --git a/drivers/media/platform/ti/omap/omap_vout.c b/drivers/media/platform/ti/omap/omap_vout.c
index 4143274089c3..72ce903717d3 100644
--- a/drivers/media/platform/ti/omap/omap_vout.c
+++ b/drivers/media/platform/ti/omap/omap_vout.c
@@ -944,10 +944,11 @@ static int omap_vout_vb2_queue_setup(struct vb2_queue *vq,
struct device *alloc_devs[])
{
struct omap_vout_device *vout = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
int size = vout->pix.sizeimage;
- if (is_rotation_enabled(vout) && vq->num_buffers + *nbufs > VRFB_NUM_BUFS) {
- *nbufs = VRFB_NUM_BUFS - vq->num_buffers;
+ if (is_rotation_enabled(vout) && q_num_bufs + *nbufs > VRFB_NUM_BUFS) {
+ *nbufs = VRFB_NUM_BUFS - q_num_bufs;
if (*nbufs == 0)
return -EINVAL;
}
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 35/53] media: ti: Use queue min_buffers_needed field to set the min number of buffers
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
When queue min_buffers_needed field is correctly set vb2 queue_setup()
does take care of it and we can remove the checks from drivers.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/ti/am437x/am437x-vpfe.c | 7 ++-----
drivers/media/platform/ti/cal/cal-video.c | 5 +----
drivers/media/platform/ti/davinci/vpif_capture.c | 5 +----
drivers/media/platform/ti/davinci/vpif_display.c | 5 +----
drivers/media/platform/ti/omap/omap_vout.c | 5 +++--
5 files changed, 8 insertions(+), 19 deletions(-)
diff --git a/drivers/media/platform/ti/am437x/am437x-vpfe.c b/drivers/media/platform/ti/am437x/am437x-vpfe.c
index 63092013d476..a12c93f8b40e 100644
--- a/drivers/media/platform/ti/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/ti/am437x/am437x-vpfe.c
@@ -1776,9 +1776,6 @@ static int vpfe_queue_setup(struct vb2_queue *vq,
struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
unsigned size = vpfe->fmt.fmt.pix.sizeimage;
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
if (*nplanes) {
if (sizes[0] < size)
return -EINVAL;
@@ -1789,7 +1786,7 @@ static int vpfe_queue_setup(struct vb2_queue *vq,
sizes[0] = size;
vpfe_dbg(1, vpfe,
- "nbuffers=%d, size=%u\n", *nbuffers, sizes[0]);
+ "nbuffers=%u, size=%u\n", vb2_get_num_buffers(vq), sizes[0]);
/* Calculate field offset */
vpfe_calculate_offsets(vpfe);
@@ -2237,7 +2234,7 @@ static int vpfe_probe_complete(struct vpfe_device *vpfe)
q->buf_struct_size = sizeof(struct vpfe_cap_buffer);
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->lock = &vpfe->lock;
- q->min_buffers_needed = 1;
+ q->min_buffers_needed = 3;
q->dev = vpfe->pdev;
err = vb2_queue_init(q);
diff --git a/drivers/media/platform/ti/cal/cal-video.c b/drivers/media/platform/ti/cal/cal-video.c
index a8abcd0fee17..924465b37e5f 100644
--- a/drivers/media/platform/ti/cal/cal-video.c
+++ b/drivers/media/platform/ti/cal/cal-video.c
@@ -604,9 +604,6 @@ static int cal_queue_setup(struct vb2_queue *vq,
struct cal_ctx *ctx = vb2_get_drv_priv(vq);
unsigned int size = ctx->v_fmt.fmt.pix.sizeimage;
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
if (*nplanes) {
if (sizes[0] < size)
return -EINVAL;
@@ -616,7 +613,7 @@ static int cal_queue_setup(struct vb2_queue *vq,
*nplanes = 1;
sizes[0] = size;
- ctx_dbg(3, ctx, "nbuffers=%d, size=%d\n", *nbuffers, sizes[0]);
+ ctx_dbg(3, ctx, "nbuffers=%d, size=%d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
diff --git a/drivers/media/platform/ti/davinci/vpif_capture.c b/drivers/media/platform/ti/davinci/vpif_capture.c
index 99fae8830c41..8a4cc62cf562 100644
--- a/drivers/media/platform/ti/davinci/vpif_capture.c
+++ b/drivers/media/platform/ti/davinci/vpif_capture.c
@@ -122,9 +122,6 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
size = sizes[0];
}
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
*nplanes = 1;
sizes[0] = size;
@@ -1428,7 +1425,7 @@ static int vpif_probe_complete(void)
q->mem_ops = &vb2_dma_contig_memops;
q->buf_struct_size = sizeof(struct vpif_cap_buffer);
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- q->min_buffers_needed = 1;
+ q->min_buffers_needed = 3;
q->lock = &common->lock;
q->dev = vpif_dev;
diff --git a/drivers/media/platform/ti/davinci/vpif_display.c b/drivers/media/platform/ti/davinci/vpif_display.c
index f8ec2991c667..6fc32314cf9c 100644
--- a/drivers/media/platform/ti/davinci/vpif_display.c
+++ b/drivers/media/platform/ti/davinci/vpif_display.c
@@ -122,9 +122,6 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq,
size = sizes[0];
}
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
-
*nplanes = 1;
sizes[0] = size;
@@ -1168,7 +1165,7 @@ static int vpif_probe_complete(void)
q->mem_ops = &vb2_dma_contig_memops;
q->buf_struct_size = sizeof(struct vpif_disp_buffer);
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- q->min_buffers_needed = 1;
+ q->min_buffers_needed = 3;
q->lock = &common->lock;
q->dev = vpif_dev;
err = vb2_queue_init(q);
diff --git a/drivers/media/platform/ti/omap/omap_vout.c b/drivers/media/platform/ti/omap/omap_vout.c
index 4143274089c3..72ce903717d3 100644
--- a/drivers/media/platform/ti/omap/omap_vout.c
+++ b/drivers/media/platform/ti/omap/omap_vout.c
@@ -944,10 +944,11 @@ static int omap_vout_vb2_queue_setup(struct vb2_queue *vq,
struct device *alloc_devs[])
{
struct omap_vout_device *vout = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
int size = vout->pix.sizeimage;
- if (is_rotation_enabled(vout) && vq->num_buffers + *nbufs > VRFB_NUM_BUFS) {
- *nbufs = VRFB_NUM_BUFS - vq->num_buffers;
+ if (is_rotation_enabled(vout) && q_num_bufs + *nbufs > VRFB_NUM_BUFS) {
+ *nbufs = VRFB_NUM_BUFS - q_num_bufs;
if (*nbufs == 0)
return -EINVAL;
}
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 36/53] media: verisilicon: Stop direct calls to queue num_buffers field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/verisilicon/hantro_postproc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/verisilicon/hantro_postproc.c b/drivers/media/platform/verisilicon/hantro_postproc.c
index 20e8f04a3bef..1f5f1aabf406 100644
--- a/drivers/media/platform/verisilicon/hantro_postproc.c
+++ b/drivers/media/platform/verisilicon/hantro_postproc.c
@@ -250,7 +250,7 @@ int hantro_postproc_init(struct hantro_ctx *ctx)
{
struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
struct vb2_queue *cap_queue = &m2m_ctx->cap_q_ctx.q;
- unsigned int num_buffers = cap_queue->num_buffers;
+ unsigned int num_buffers = vb2_get_num_buffers(cap_queue);
unsigned int i;
int ret;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 36/53] media: verisilicon: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/verisilicon/hantro_postproc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/verisilicon/hantro_postproc.c b/drivers/media/platform/verisilicon/hantro_postproc.c
index 20e8f04a3bef..1f5f1aabf406 100644
--- a/drivers/media/platform/verisilicon/hantro_postproc.c
+++ b/drivers/media/platform/verisilicon/hantro_postproc.c
@@ -250,7 +250,7 @@ int hantro_postproc_init(struct hantro_ctx *ctx)
{
struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
struct vb2_queue *cap_queue = &m2m_ctx->cap_q_ctx.q;
- unsigned int num_buffers = cap_queue->num_buffers;
+ unsigned int num_buffers = vb2_get_num_buffers(cap_queue);
unsigned int i;
int ret;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 36/53] media: verisilicon: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/platform/verisilicon/hantro_postproc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/verisilicon/hantro_postproc.c b/drivers/media/platform/verisilicon/hantro_postproc.c
index 20e8f04a3bef..1f5f1aabf406 100644
--- a/drivers/media/platform/verisilicon/hantro_postproc.c
+++ b/drivers/media/platform/verisilicon/hantro_postproc.c
@@ -250,7 +250,7 @@ int hantro_postproc_init(struct hantro_ctx *ctx)
{
struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
struct vb2_queue *cap_queue = &m2m_ctx->cap_q_ctx.q;
- unsigned int num_buffers = cap_queue->num_buffers;
+ unsigned int num_buffers = vb2_get_num_buffers(cap_queue);
unsigned int i;
int ret;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 37/53] media: test-drivers: Stop direct calls to queue num_buffers field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
If min_buffers_needed is set remove useless checks.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/visl/visl-dec.c | 4 ++--
drivers/media/test-drivers/vivid/vivid-meta-cap.c | 3 ---
drivers/media/test-drivers/vivid/vivid-meta-out.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-touch-cap.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-vbi-cap.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-vbi-out.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-vid-cap.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-vid-out.c | 5 +----
8 files changed, 18 insertions(+), 19 deletions(-)
diff --git a/drivers/media/test-drivers/visl/visl-dec.c b/drivers/media/test-drivers/visl/visl-dec.c
index ba20ea998d19..7aa70da72b97 100644
--- a/drivers/media/test-drivers/visl/visl-dec.c
+++ b/drivers/media/test-drivers/visl/visl-dec.c
@@ -287,7 +287,7 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
len = 0;
- for (i = 0; i < out_q->num_buffers; i++) {
+ for (i = 0; i < out_q->max_num_buffers; i++) {
char entry[] = "index: %u, state: %s, request_fd: %d, ";
u32 old_len = len;
struct vb2_buffer *vb2;
@@ -347,7 +347,7 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
len = 0;
- for (i = 0; i < cap_q->num_buffers; i++) {
+ for (i = 0; i < cap_q->max_num_buffers; i++) {
u32 old_len = len;
struct vb2_buffer *vb2;
char *q_status;
diff --git a/drivers/media/test-drivers/vivid/vivid-meta-cap.c b/drivers/media/test-drivers/vivid/vivid-meta-cap.c
index 780f96860a6d..0a718d037e59 100644
--- a/drivers/media/test-drivers/vivid/vivid-meta-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-meta-cap.c
@@ -30,9 +30,6 @@ static int meta_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
sizes[0] = size;
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
-
*nplanes = 1;
return 0;
}
diff --git a/drivers/media/test-drivers/vivid/vivid-meta-out.c b/drivers/media/test-drivers/vivid/vivid-meta-out.c
index 95835b52b58f..4a569a6e58be 100644
--- a/drivers/media/test-drivers/vivid/vivid-meta-out.c
+++ b/drivers/media/test-drivers/vivid/vivid-meta-out.c
@@ -18,6 +18,7 @@ static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
unsigned int size = sizeof(struct vivid_meta_out_buf);
if (!vivid_is_webcam(dev))
@@ -30,8 +31,8 @@ static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
sizes[0] = size;
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
diff --git a/drivers/media/test-drivers/vivid/vivid-touch-cap.c b/drivers/media/test-drivers/vivid/vivid-touch-cap.c
index c7f6e23df51e..4b3c6ea0afde 100644
--- a/drivers/media/test-drivers/vivid/vivid-touch-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-touch-cap.c
@@ -13,6 +13,7 @@ static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
struct v4l2_pix_format *f = &dev->tch_format;
unsigned int size = f->sizeimage;
@@ -23,8 +24,8 @@ static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
sizes[0] = size;
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-cap.c b/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
index b65b02eeeb97..fcd7f40385e9 100644
--- a/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
@@ -124,6 +124,7 @@ static int vbi_cap_queue_setup(struct vb2_queue *vq,
unsigned sizes[], struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
bool is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60;
unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ?
36 * sizeof(struct v4l2_sliced_vbi_data) :
@@ -134,8 +135,8 @@ static int vbi_cap_queue_setup(struct vb2_queue *vq,
sizes[0] = size;
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-out.c b/drivers/media/test-drivers/vivid/vivid-vbi-out.c
index cd56476902a2..8f0da5d88bcc 100644
--- a/drivers/media/test-drivers/vivid/vivid-vbi-out.c
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-out.c
@@ -20,6 +20,7 @@ static int vbi_out_queue_setup(struct vb2_queue *vq,
unsigned sizes[], struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
bool is_60hz = dev->std_out & V4L2_STD_525_60;
unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT ?
36 * sizeof(struct v4l2_sliced_vbi_data) :
@@ -30,8 +31,8 @@ static int vbi_out_queue_setup(struct vb2_queue *vq,
sizes[0] = size;
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
diff --git a/drivers/media/test-drivers/vivid/vivid-vid-cap.c b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
index 3a06df35a2d7..0cc7602b9fb2 100644
--- a/drivers/media/test-drivers/vivid/vivid-vid-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
@@ -77,6 +77,7 @@ static int vid_cap_queue_setup(struct vb2_queue *vq,
unsigned sizes[], struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
unsigned buffers = tpg_g_buffers(&dev->tpg);
unsigned h = dev->fmt_cap_rect.height;
unsigned p;
@@ -117,8 +118,8 @@ static int vid_cap_queue_setup(struct vb2_queue *vq,
dev->fmt_cap->data_offset[p];
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = buffers;
diff --git a/drivers/media/test-drivers/vivid/vivid-vid-out.c b/drivers/media/test-drivers/vivid/vivid-vid-out.c
index 184a6df2c29f..24c6dc896255 100644
--- a/drivers/media/test-drivers/vivid/vivid-vid-out.c
+++ b/drivers/media/test-drivers/vivid/vivid-vid-out.c
@@ -73,12 +73,9 @@ static int vid_out_queue_setup(struct vb2_queue *vq,
vfmt->data_offset[p] : size;
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
-
*nplanes = planes;
- dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
+ dprintk(dev, 1, "%s: count=%u\n", __func__, vb2_get_num_buffers(vq));
for (p = 0; p < planes; p++)
dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
return 0;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 37/53] media: test-drivers: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
If min_buffers_needed is set remove useless checks.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/visl/visl-dec.c | 4 ++--
drivers/media/test-drivers/vivid/vivid-meta-cap.c | 3 ---
drivers/media/test-drivers/vivid/vivid-meta-out.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-touch-cap.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-vbi-cap.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-vbi-out.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-vid-cap.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-vid-out.c | 5 +----
8 files changed, 18 insertions(+), 19 deletions(-)
diff --git a/drivers/media/test-drivers/visl/visl-dec.c b/drivers/media/test-drivers/visl/visl-dec.c
index ba20ea998d19..7aa70da72b97 100644
--- a/drivers/media/test-drivers/visl/visl-dec.c
+++ b/drivers/media/test-drivers/visl/visl-dec.c
@@ -287,7 +287,7 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
len = 0;
- for (i = 0; i < out_q->num_buffers; i++) {
+ for (i = 0; i < out_q->max_num_buffers; i++) {
char entry[] = "index: %u, state: %s, request_fd: %d, ";
u32 old_len = len;
struct vb2_buffer *vb2;
@@ -347,7 +347,7 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
len = 0;
- for (i = 0; i < cap_q->num_buffers; i++) {
+ for (i = 0; i < cap_q->max_num_buffers; i++) {
u32 old_len = len;
struct vb2_buffer *vb2;
char *q_status;
diff --git a/drivers/media/test-drivers/vivid/vivid-meta-cap.c b/drivers/media/test-drivers/vivid/vivid-meta-cap.c
index 780f96860a6d..0a718d037e59 100644
--- a/drivers/media/test-drivers/vivid/vivid-meta-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-meta-cap.c
@@ -30,9 +30,6 @@ static int meta_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
sizes[0] = size;
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
-
*nplanes = 1;
return 0;
}
diff --git a/drivers/media/test-drivers/vivid/vivid-meta-out.c b/drivers/media/test-drivers/vivid/vivid-meta-out.c
index 95835b52b58f..4a569a6e58be 100644
--- a/drivers/media/test-drivers/vivid/vivid-meta-out.c
+++ b/drivers/media/test-drivers/vivid/vivid-meta-out.c
@@ -18,6 +18,7 @@ static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
unsigned int size = sizeof(struct vivid_meta_out_buf);
if (!vivid_is_webcam(dev))
@@ -30,8 +31,8 @@ static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
sizes[0] = size;
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
diff --git a/drivers/media/test-drivers/vivid/vivid-touch-cap.c b/drivers/media/test-drivers/vivid/vivid-touch-cap.c
index c7f6e23df51e..4b3c6ea0afde 100644
--- a/drivers/media/test-drivers/vivid/vivid-touch-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-touch-cap.c
@@ -13,6 +13,7 @@ static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
struct v4l2_pix_format *f = &dev->tch_format;
unsigned int size = f->sizeimage;
@@ -23,8 +24,8 @@ static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
sizes[0] = size;
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-cap.c b/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
index b65b02eeeb97..fcd7f40385e9 100644
--- a/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
@@ -124,6 +124,7 @@ static int vbi_cap_queue_setup(struct vb2_queue *vq,
unsigned sizes[], struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
bool is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60;
unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ?
36 * sizeof(struct v4l2_sliced_vbi_data) :
@@ -134,8 +135,8 @@ static int vbi_cap_queue_setup(struct vb2_queue *vq,
sizes[0] = size;
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-out.c b/drivers/media/test-drivers/vivid/vivid-vbi-out.c
index cd56476902a2..8f0da5d88bcc 100644
--- a/drivers/media/test-drivers/vivid/vivid-vbi-out.c
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-out.c
@@ -20,6 +20,7 @@ static int vbi_out_queue_setup(struct vb2_queue *vq,
unsigned sizes[], struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
bool is_60hz = dev->std_out & V4L2_STD_525_60;
unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT ?
36 * sizeof(struct v4l2_sliced_vbi_data) :
@@ -30,8 +31,8 @@ static int vbi_out_queue_setup(struct vb2_queue *vq,
sizes[0] = size;
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
diff --git a/drivers/media/test-drivers/vivid/vivid-vid-cap.c b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
index 3a06df35a2d7..0cc7602b9fb2 100644
--- a/drivers/media/test-drivers/vivid/vivid-vid-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
@@ -77,6 +77,7 @@ static int vid_cap_queue_setup(struct vb2_queue *vq,
unsigned sizes[], struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
unsigned buffers = tpg_g_buffers(&dev->tpg);
unsigned h = dev->fmt_cap_rect.height;
unsigned p;
@@ -117,8 +118,8 @@ static int vid_cap_queue_setup(struct vb2_queue *vq,
dev->fmt_cap->data_offset[p];
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = buffers;
diff --git a/drivers/media/test-drivers/vivid/vivid-vid-out.c b/drivers/media/test-drivers/vivid/vivid-vid-out.c
index 184a6df2c29f..24c6dc896255 100644
--- a/drivers/media/test-drivers/vivid/vivid-vid-out.c
+++ b/drivers/media/test-drivers/vivid/vivid-vid-out.c
@@ -73,12 +73,9 @@ static int vid_out_queue_setup(struct vb2_queue *vq,
vfmt->data_offset[p] : size;
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
-
*nplanes = planes;
- dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
+ dprintk(dev, 1, "%s: count=%u\n", __func__, vb2_get_num_buffers(vq));
for (p = 0; p < planes; p++)
dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
return 0;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 37/53] media: test-drivers: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
If min_buffers_needed is set remove useless checks.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/visl/visl-dec.c | 4 ++--
drivers/media/test-drivers/vivid/vivid-meta-cap.c | 3 ---
drivers/media/test-drivers/vivid/vivid-meta-out.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-touch-cap.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-vbi-cap.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-vbi-out.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-vid-cap.c | 5 +++--
drivers/media/test-drivers/vivid/vivid-vid-out.c | 5 +----
8 files changed, 18 insertions(+), 19 deletions(-)
diff --git a/drivers/media/test-drivers/visl/visl-dec.c b/drivers/media/test-drivers/visl/visl-dec.c
index ba20ea998d19..7aa70da72b97 100644
--- a/drivers/media/test-drivers/visl/visl-dec.c
+++ b/drivers/media/test-drivers/visl/visl-dec.c
@@ -287,7 +287,7 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
len = 0;
- for (i = 0; i < out_q->num_buffers; i++) {
+ for (i = 0; i < out_q->max_num_buffers; i++) {
char entry[] = "index: %u, state: %s, request_fd: %d, ";
u32 old_len = len;
struct vb2_buffer *vb2;
@@ -347,7 +347,7 @@ static void visl_tpg_fill(struct visl_ctx *ctx, struct visl_run *run)
frame_dprintk(ctx->dev, run->dst->sequence, "%s\n", buf);
len = 0;
- for (i = 0; i < cap_q->num_buffers; i++) {
+ for (i = 0; i < cap_q->max_num_buffers; i++) {
u32 old_len = len;
struct vb2_buffer *vb2;
char *q_status;
diff --git a/drivers/media/test-drivers/vivid/vivid-meta-cap.c b/drivers/media/test-drivers/vivid/vivid-meta-cap.c
index 780f96860a6d..0a718d037e59 100644
--- a/drivers/media/test-drivers/vivid/vivid-meta-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-meta-cap.c
@@ -30,9 +30,6 @@ static int meta_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
sizes[0] = size;
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
-
*nplanes = 1;
return 0;
}
diff --git a/drivers/media/test-drivers/vivid/vivid-meta-out.c b/drivers/media/test-drivers/vivid/vivid-meta-out.c
index 95835b52b58f..4a569a6e58be 100644
--- a/drivers/media/test-drivers/vivid/vivid-meta-out.c
+++ b/drivers/media/test-drivers/vivid/vivid-meta-out.c
@@ -18,6 +18,7 @@ static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
unsigned int size = sizeof(struct vivid_meta_out_buf);
if (!vivid_is_webcam(dev))
@@ -30,8 +31,8 @@ static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
sizes[0] = size;
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
diff --git a/drivers/media/test-drivers/vivid/vivid-touch-cap.c b/drivers/media/test-drivers/vivid/vivid-touch-cap.c
index c7f6e23df51e..4b3c6ea0afde 100644
--- a/drivers/media/test-drivers/vivid/vivid-touch-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-touch-cap.c
@@ -13,6 +13,7 @@ static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
struct v4l2_pix_format *f = &dev->tch_format;
unsigned int size = f->sizeimage;
@@ -23,8 +24,8 @@ static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
sizes[0] = size;
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-cap.c b/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
index b65b02eeeb97..fcd7f40385e9 100644
--- a/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-cap.c
@@ -124,6 +124,7 @@ static int vbi_cap_queue_setup(struct vb2_queue *vq,
unsigned sizes[], struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
bool is_60hz = dev->std_cap[dev->input] & V4L2_STD_525_60;
unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE ?
36 * sizeof(struct v4l2_sliced_vbi_data) :
@@ -134,8 +135,8 @@ static int vbi_cap_queue_setup(struct vb2_queue *vq,
sizes[0] = size;
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-out.c b/drivers/media/test-drivers/vivid/vivid-vbi-out.c
index cd56476902a2..8f0da5d88bcc 100644
--- a/drivers/media/test-drivers/vivid/vivid-vbi-out.c
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-out.c
@@ -20,6 +20,7 @@ static int vbi_out_queue_setup(struct vb2_queue *vq,
unsigned sizes[], struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
bool is_60hz = dev->std_out & V4L2_STD_525_60;
unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT ?
36 * sizeof(struct v4l2_sliced_vbi_data) :
@@ -30,8 +31,8 @@ static int vbi_out_queue_setup(struct vb2_queue *vq,
sizes[0] = size;
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
diff --git a/drivers/media/test-drivers/vivid/vivid-vid-cap.c b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
index 3a06df35a2d7..0cc7602b9fb2 100644
--- a/drivers/media/test-drivers/vivid/vivid-vid-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
@@ -77,6 +77,7 @@ static int vid_cap_queue_setup(struct vb2_queue *vq,
unsigned sizes[], struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
unsigned buffers = tpg_g_buffers(&dev->tpg);
unsigned h = dev->fmt_cap_rect.height;
unsigned p;
@@ -117,8 +118,8 @@ static int vid_cap_queue_setup(struct vb2_queue *vq,
dev->fmt_cap->data_offset[p];
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
*nplanes = buffers;
diff --git a/drivers/media/test-drivers/vivid/vivid-vid-out.c b/drivers/media/test-drivers/vivid/vivid-vid-out.c
index 184a6df2c29f..24c6dc896255 100644
--- a/drivers/media/test-drivers/vivid/vivid-vid-out.c
+++ b/drivers/media/test-drivers/vivid/vivid-vid-out.c
@@ -73,12 +73,9 @@ static int vid_out_queue_setup(struct vb2_queue *vq,
vfmt->data_offset[p] : size;
}
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
-
*nplanes = planes;
- dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
+ dprintk(dev, 1, "%s: count=%u\n", __func__, vb2_get_num_buffers(vq));
for (p = 0; p < planes; p++)
dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
return 0;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 38/53] media: usb: airspy: Set min_buffers_needed to 8
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 8 and remove the useless check in
airspy_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/usb/airspy/airspy.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/media/usb/airspy/airspy.c b/drivers/media/usb/airspy/airspy.c
index 462eb8423506..56bc1b23d39b 100644
--- a/drivers/media/usb/airspy/airspy.c
+++ b/drivers/media/usb/airspy/airspy.c
@@ -483,15 +483,10 @@ static int airspy_queue_setup(struct vb2_queue *vq,
{
struct airspy *s = vb2_get_drv_priv(vq);
- dev_dbg(s->dev, "nbuffers=%d\n", *nbuffers);
-
- /* Need at least 8 buffers */
- if (vq->num_buffers + *nbuffers < 8)
- *nbuffers = 8 - vq->num_buffers;
*nplanes = 1;
sizes[0] = PAGE_ALIGN(s->buffersize);
- dev_dbg(s->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]);
+ dev_dbg(s->dev, "nbuffers=%d sizes[0]=%d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
@@ -1011,6 +1006,8 @@ static int airspy_probe(struct usb_interface *intf,
/* Init videobuf2 queue structure */
s->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
s->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
+ /* Need at least 8 buffers */
+ s->vb_queue.min_buffers_needed = 8;
s->vb_queue.drv_priv = s;
s->vb_queue.buf_struct_size = sizeof(struct airspy_frame_buf);
s->vb_queue.ops = &airspy_vb2_ops;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 38/53] media: usb: airspy: Set min_buffers_needed to 8
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 8 and remove the useless check in
airspy_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/usb/airspy/airspy.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/media/usb/airspy/airspy.c b/drivers/media/usb/airspy/airspy.c
index 462eb8423506..56bc1b23d39b 100644
--- a/drivers/media/usb/airspy/airspy.c
+++ b/drivers/media/usb/airspy/airspy.c
@@ -483,15 +483,10 @@ static int airspy_queue_setup(struct vb2_queue *vq,
{
struct airspy *s = vb2_get_drv_priv(vq);
- dev_dbg(s->dev, "nbuffers=%d\n", *nbuffers);
-
- /* Need at least 8 buffers */
- if (vq->num_buffers + *nbuffers < 8)
- *nbuffers = 8 - vq->num_buffers;
*nplanes = 1;
sizes[0] = PAGE_ALIGN(s->buffersize);
- dev_dbg(s->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]);
+ dev_dbg(s->dev, "nbuffers=%d sizes[0]=%d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
@@ -1011,6 +1006,8 @@ static int airspy_probe(struct usb_interface *intf,
/* Init videobuf2 queue structure */
s->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
s->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
+ /* Need at least 8 buffers */
+ s->vb_queue.min_buffers_needed = 8;
s->vb_queue.drv_priv = s;
s->vb_queue.buf_struct_size = sizeof(struct airspy_frame_buf);
s->vb_queue.ops = &airspy_vb2_ops;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 38/53] media: usb: airspy: Set min_buffers_needed to 8
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 8 and remove the useless check in
airspy_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/usb/airspy/airspy.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/media/usb/airspy/airspy.c b/drivers/media/usb/airspy/airspy.c
index 462eb8423506..56bc1b23d39b 100644
--- a/drivers/media/usb/airspy/airspy.c
+++ b/drivers/media/usb/airspy/airspy.c
@@ -483,15 +483,10 @@ static int airspy_queue_setup(struct vb2_queue *vq,
{
struct airspy *s = vb2_get_drv_priv(vq);
- dev_dbg(s->dev, "nbuffers=%d\n", *nbuffers);
-
- /* Need at least 8 buffers */
- if (vq->num_buffers + *nbuffers < 8)
- *nbuffers = 8 - vq->num_buffers;
*nplanes = 1;
sizes[0] = PAGE_ALIGN(s->buffersize);
- dev_dbg(s->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]);
+ dev_dbg(s->dev, "nbuffers=%d sizes[0]=%d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
@@ -1011,6 +1006,8 @@ static int airspy_probe(struct usb_interface *intf,
/* Init videobuf2 queue structure */
s->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
s->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
+ /* Need at least 8 buffers */
+ s->vb_queue.min_buffers_needed = 8;
s->vb_queue.drv_priv = s;
s->vb_queue.buf_struct_size = sizeof(struct airspy_frame_buf);
s->vb_queue.ops = &airspy_vb2_ops;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 39/53] media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to aCX231XX_MIN_BUFnd remove the useless check in
cx231xx queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/usb/cx231xx/cx231xx-417.c | 4 +---
drivers/media/usb/cx231xx/cx231xx-video.c | 4 +---
2 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c b/drivers/media/usb/cx231xx/cx231xx-417.c
index c5e21785fafe..fecdb12f5ef7 100644
--- a/drivers/media/usb/cx231xx/cx231xx-417.c
+++ b/drivers/media/usb/cx231xx/cx231xx-417.c
@@ -1223,9 +1223,6 @@ static int queue_setup(struct vb2_queue *vq,
dev->ts1.ts_packet_size = mpeglinesize;
dev->ts1.ts_packet_count = mpeglines;
- if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF)
- *nbuffers = CX231XX_MIN_BUF - vq->num_buffers;
-
if (*nplanes)
return sizes[0] < size ? -EINVAL : 0;
*nplanes = 1;
@@ -1777,6 +1774,7 @@ int cx231xx_417_register(struct cx231xx *dev)
q = &dev->mpegq;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_USERPTR | VB2_MMAP | VB2_DMABUF | VB2_READ;
+ q->min_buffers_needed = CX231XX_MIN_BUF;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct cx231xx_buffer);
q->ops = &cx231xx_video_qops;
diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c
index e23b8ccd79d4..26b593844157 100644
--- a/drivers/media/usb/cx231xx/cx231xx-video.c
+++ b/drivers/media/usb/cx231xx/cx231xx-video.c
@@ -717,9 +717,6 @@ static int queue_setup(struct vb2_queue *vq,
dev->size = (dev->width * dev->height * dev->format->depth + 7) >> 3;
- if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF)
- *nbuffers = CX231XX_MIN_BUF - vq->num_buffers;
-
if (*nplanes)
return sizes[0] < dev->size ? -EINVAL : 0;
*nplanes = 1;
@@ -1805,6 +1802,7 @@ int cx231xx_register_analog_devices(struct cx231xx *dev)
q = &dev->vidq;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_USERPTR | VB2_MMAP | VB2_DMABUF | VB2_READ;
+ q->min_buffers_needed = CX231XX_MIN_BUF;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct cx231xx_buffer);
q->ops = &cx231xx_video_qops;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 39/53] media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to aCX231XX_MIN_BUFnd remove the useless check in
cx231xx queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/usb/cx231xx/cx231xx-417.c | 4 +---
drivers/media/usb/cx231xx/cx231xx-video.c | 4 +---
2 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c b/drivers/media/usb/cx231xx/cx231xx-417.c
index c5e21785fafe..fecdb12f5ef7 100644
--- a/drivers/media/usb/cx231xx/cx231xx-417.c
+++ b/drivers/media/usb/cx231xx/cx231xx-417.c
@@ -1223,9 +1223,6 @@ static int queue_setup(struct vb2_queue *vq,
dev->ts1.ts_packet_size = mpeglinesize;
dev->ts1.ts_packet_count = mpeglines;
- if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF)
- *nbuffers = CX231XX_MIN_BUF - vq->num_buffers;
-
if (*nplanes)
return sizes[0] < size ? -EINVAL : 0;
*nplanes = 1;
@@ -1777,6 +1774,7 @@ int cx231xx_417_register(struct cx231xx *dev)
q = &dev->mpegq;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_USERPTR | VB2_MMAP | VB2_DMABUF | VB2_READ;
+ q->min_buffers_needed = CX231XX_MIN_BUF;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct cx231xx_buffer);
q->ops = &cx231xx_video_qops;
diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c
index e23b8ccd79d4..26b593844157 100644
--- a/drivers/media/usb/cx231xx/cx231xx-video.c
+++ b/drivers/media/usb/cx231xx/cx231xx-video.c
@@ -717,9 +717,6 @@ static int queue_setup(struct vb2_queue *vq,
dev->size = (dev->width * dev->height * dev->format->depth + 7) >> 3;
- if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF)
- *nbuffers = CX231XX_MIN_BUF - vq->num_buffers;
-
if (*nplanes)
return sizes[0] < dev->size ? -EINVAL : 0;
*nplanes = 1;
@@ -1805,6 +1802,7 @@ int cx231xx_register_analog_devices(struct cx231xx *dev)
q = &dev->vidq;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_USERPTR | VB2_MMAP | VB2_DMABUF | VB2_READ;
+ q->min_buffers_needed = CX231XX_MIN_BUF;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct cx231xx_buffer);
q->ops = &cx231xx_video_qops;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 39/53] media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to aCX231XX_MIN_BUFnd remove the useless check in
cx231xx queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/usb/cx231xx/cx231xx-417.c | 4 +---
drivers/media/usb/cx231xx/cx231xx-video.c | 4 +---
2 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c b/drivers/media/usb/cx231xx/cx231xx-417.c
index c5e21785fafe..fecdb12f5ef7 100644
--- a/drivers/media/usb/cx231xx/cx231xx-417.c
+++ b/drivers/media/usb/cx231xx/cx231xx-417.c
@@ -1223,9 +1223,6 @@ static int queue_setup(struct vb2_queue *vq,
dev->ts1.ts_packet_size = mpeglinesize;
dev->ts1.ts_packet_count = mpeglines;
- if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF)
- *nbuffers = CX231XX_MIN_BUF - vq->num_buffers;
-
if (*nplanes)
return sizes[0] < size ? -EINVAL : 0;
*nplanes = 1;
@@ -1777,6 +1774,7 @@ int cx231xx_417_register(struct cx231xx *dev)
q = &dev->mpegq;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_USERPTR | VB2_MMAP | VB2_DMABUF | VB2_READ;
+ q->min_buffers_needed = CX231XX_MIN_BUF;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct cx231xx_buffer);
q->ops = &cx231xx_video_qops;
diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c
index e23b8ccd79d4..26b593844157 100644
--- a/drivers/media/usb/cx231xx/cx231xx-video.c
+++ b/drivers/media/usb/cx231xx/cx231xx-video.c
@@ -717,9 +717,6 @@ static int queue_setup(struct vb2_queue *vq,
dev->size = (dev->width * dev->height * dev->format->depth + 7) >> 3;
- if (vq->num_buffers + *nbuffers < CX231XX_MIN_BUF)
- *nbuffers = CX231XX_MIN_BUF - vq->num_buffers;
-
if (*nplanes)
return sizes[0] < dev->size ? -EINVAL : 0;
*nplanes = 1;
@@ -1805,6 +1802,7 @@ int cx231xx_register_analog_devices(struct cx231xx *dev)
q = &dev->vidq;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_USERPTR | VB2_MMAP | VB2_DMABUF | VB2_READ;
+ q->min_buffers_needed = CX231XX_MIN_BUF;
q->drv_priv = dev;
q->buf_struct_size = sizeof(struct cx231xx_buffer);
q->ops = &cx231xx_video_qops;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 40/53] media: usb: hackrf: Set min_buffers_needed to 8
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 8 and remove the useless check in
hackrf_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/usb/hackrf/hackrf.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/media/usb/hackrf/hackrf.c b/drivers/media/usb/hackrf/hackrf.c
index 3e535be2c520..2e856b20aa21 100644
--- a/drivers/media/usb/hackrf/hackrf.c
+++ b/drivers/media/usb/hackrf/hackrf.c
@@ -754,15 +754,10 @@ static int hackrf_queue_setup(struct vb2_queue *vq,
{
struct hackrf_dev *dev = vb2_get_drv_priv(vq);
- dev_dbg(dev->dev, "nbuffers=%d\n", *nbuffers);
-
- /* Need at least 8 buffers */
- if (vq->num_buffers + *nbuffers < 8)
- *nbuffers = 8 - vq->num_buffers;
*nplanes = 1;
sizes[0] = PAGE_ALIGN(dev->buffersize);
- dev_dbg(dev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]);
+ dev_dbg(dev->dev, "nbuffers=%u sizes[0]=%d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
@@ -1392,6 +1387,8 @@ static int hackrf_probe(struct usb_interface *intf,
dev->rx_vb2_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
dev->rx_vb2_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF |
VB2_READ;
+ /* Need at least 8 buffers */
+ dev->rx_vb2_queue.min_buffers_needed = 8;
dev->rx_vb2_queue.ops = &hackrf_vb2_ops;
dev->rx_vb2_queue.mem_ops = &vb2_vmalloc_memops;
dev->rx_vb2_queue.drv_priv = dev;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 40/53] media: usb: hackrf: Set min_buffers_needed to 8
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 8 and remove the useless check in
hackrf_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/usb/hackrf/hackrf.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/media/usb/hackrf/hackrf.c b/drivers/media/usb/hackrf/hackrf.c
index 3e535be2c520..2e856b20aa21 100644
--- a/drivers/media/usb/hackrf/hackrf.c
+++ b/drivers/media/usb/hackrf/hackrf.c
@@ -754,15 +754,10 @@ static int hackrf_queue_setup(struct vb2_queue *vq,
{
struct hackrf_dev *dev = vb2_get_drv_priv(vq);
- dev_dbg(dev->dev, "nbuffers=%d\n", *nbuffers);
-
- /* Need at least 8 buffers */
- if (vq->num_buffers + *nbuffers < 8)
- *nbuffers = 8 - vq->num_buffers;
*nplanes = 1;
sizes[0] = PAGE_ALIGN(dev->buffersize);
- dev_dbg(dev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]);
+ dev_dbg(dev->dev, "nbuffers=%u sizes[0]=%d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
@@ -1392,6 +1387,8 @@ static int hackrf_probe(struct usb_interface *intf,
dev->rx_vb2_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
dev->rx_vb2_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF |
VB2_READ;
+ /* Need at least 8 buffers */
+ dev->rx_vb2_queue.min_buffers_needed = 8;
dev->rx_vb2_queue.ops = &hackrf_vb2_ops;
dev->rx_vb2_queue.mem_ops = &vb2_vmalloc_memops;
dev->rx_vb2_queue.drv_priv = dev;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 40/53] media: usb: hackrf: Set min_buffers_needed to 8
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 8 and remove the useless check in
hackrf_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/usb/hackrf/hackrf.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/media/usb/hackrf/hackrf.c b/drivers/media/usb/hackrf/hackrf.c
index 3e535be2c520..2e856b20aa21 100644
--- a/drivers/media/usb/hackrf/hackrf.c
+++ b/drivers/media/usb/hackrf/hackrf.c
@@ -754,15 +754,10 @@ static int hackrf_queue_setup(struct vb2_queue *vq,
{
struct hackrf_dev *dev = vb2_get_drv_priv(vq);
- dev_dbg(dev->dev, "nbuffers=%d\n", *nbuffers);
-
- /* Need at least 8 buffers */
- if (vq->num_buffers + *nbuffers < 8)
- *nbuffers = 8 - vq->num_buffers;
*nplanes = 1;
sizes[0] = PAGE_ALIGN(dev->buffersize);
- dev_dbg(dev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]);
+ dev_dbg(dev->dev, "nbuffers=%u sizes[0]=%d\n", vb2_get_num_buffers(vq), sizes[0]);
return 0;
}
@@ -1392,6 +1387,8 @@ static int hackrf_probe(struct usb_interface *intf,
dev->rx_vb2_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
dev->rx_vb2_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF |
VB2_READ;
+ /* Need at least 8 buffers */
+ dev->rx_vb2_queue.min_buffers_needed = 8;
dev->rx_vb2_queue.ops = &hackrf_vb2_ops;
dev->rx_vb2_queue.mem_ops = &vb2_vmalloc_memops;
dev->rx_vb2_queue.drv_priv = dev;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 41/53] media: usb: usbtv: Set min_buffers_needed to 2
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 2 and remove the useless check in
usbtv_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/usb/usbtv/usbtv-video.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/media/usb/usbtv/usbtv-video.c b/drivers/media/usb/usbtv/usbtv-video.c
index 1e30e05953dc..0e9e860be47f 100644
--- a/drivers/media/usb/usbtv/usbtv-video.c
+++ b/drivers/media/usb/usbtv/usbtv-video.c
@@ -727,8 +727,6 @@ static int usbtv_queue_setup(struct vb2_queue *vq,
struct usbtv *usbtv = vb2_get_drv_priv(vq);
unsigned size = USBTV_CHUNK * usbtv->n_chunks * 2 * sizeof(u32);
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
if (*nplanes)
return sizes[0] < size ? -EINVAL : 0;
*nplanes = 1;
@@ -892,6 +890,7 @@ int usbtv_video_init(struct usbtv *usbtv)
/* videobuf2 structure */
usbtv->vb2q.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
usbtv->vb2q.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
+ usbtv->vb2q.min_buffers_needed = 2;
usbtv->vb2q.drv_priv = usbtv;
usbtv->vb2q.buf_struct_size = sizeof(struct usbtv_buf);
usbtv->vb2q.ops = &usbtv_vb2_ops;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 41/53] media: usb: usbtv: Set min_buffers_needed to 2
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 2 and remove the useless check in
usbtv_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/usb/usbtv/usbtv-video.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/media/usb/usbtv/usbtv-video.c b/drivers/media/usb/usbtv/usbtv-video.c
index 1e30e05953dc..0e9e860be47f 100644
--- a/drivers/media/usb/usbtv/usbtv-video.c
+++ b/drivers/media/usb/usbtv/usbtv-video.c
@@ -727,8 +727,6 @@ static int usbtv_queue_setup(struct vb2_queue *vq,
struct usbtv *usbtv = vb2_get_drv_priv(vq);
unsigned size = USBTV_CHUNK * usbtv->n_chunks * 2 * sizeof(u32);
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
if (*nplanes)
return sizes[0] < size ? -EINVAL : 0;
*nplanes = 1;
@@ -892,6 +890,7 @@ int usbtv_video_init(struct usbtv *usbtv)
/* videobuf2 structure */
usbtv->vb2q.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
usbtv->vb2q.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
+ usbtv->vb2q.min_buffers_needed = 2;
usbtv->vb2q.drv_priv = usbtv;
usbtv->vb2q.buf_struct_size = sizeof(struct usbtv_buf);
usbtv->vb2q.ops = &usbtv_vb2_ops;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 41/53] media: usb: usbtv: Set min_buffers_needed to 2
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
vb2 queue_setup checks for a minimum number of buffers so set
min_buffers_needed to 2 and remove the useless check in
usbtv_queue_setup().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/usb/usbtv/usbtv-video.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/media/usb/usbtv/usbtv-video.c b/drivers/media/usb/usbtv/usbtv-video.c
index 1e30e05953dc..0e9e860be47f 100644
--- a/drivers/media/usb/usbtv/usbtv-video.c
+++ b/drivers/media/usb/usbtv/usbtv-video.c
@@ -727,8 +727,6 @@ static int usbtv_queue_setup(struct vb2_queue *vq,
struct usbtv *usbtv = vb2_get_drv_priv(vq);
unsigned size = USBTV_CHUNK * usbtv->n_chunks * 2 * sizeof(u32);
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2 - vq->num_buffers;
if (*nplanes)
return sizes[0] < size ? -EINVAL : 0;
*nplanes = 1;
@@ -892,6 +890,7 @@ int usbtv_video_init(struct usbtv *usbtv)
/* videobuf2 structure */
usbtv->vb2q.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
usbtv->vb2q.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
+ usbtv->vb2q.min_buffers_needed = 2;
usbtv->vb2q.drv_priv = usbtv;
usbtv->vb2q.buf_struct_size = sizeof(struct usbtv_buf);
usbtv->vb2q.ops = &usbtv_vb2_ops;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 42/53] media: atomisp: Stop direct calls to queue num_buffers field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/atomisp/pci/atomisp_ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index 4b65c69fa60d..48f9745421a9 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -1030,7 +1030,7 @@ static int atomisp_qbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer
struct atomisp_device *isp = video_get_drvdata(vdev);
struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
- if (buf->index >= vdev->queue->num_buffers)
+ if (buf->index >= vb2_get_num_buffers(vdev->queue))
return -EINVAL;
if (buf->reserved2 & ATOMISP_BUFFER_HAS_PER_FRAME_SETTING) {
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 42/53] media: atomisp: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/atomisp/pci/atomisp_ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index 4b65c69fa60d..48f9745421a9 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -1030,7 +1030,7 @@ static int atomisp_qbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer
struct atomisp_device *isp = video_get_drvdata(vdev);
struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
- if (buf->index >= vdev->queue->num_buffers)
+ if (buf->index >= vb2_get_num_buffers(vdev->queue))
return -EINVAL;
if (buf->reserved2 & ATOMISP_BUFFER_HAS_PER_FRAME_SETTING) {
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 42/53] media: atomisp: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/atomisp/pci/atomisp_ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index 4b65c69fa60d..48f9745421a9 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -1030,7 +1030,7 @@ static int atomisp_qbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer
struct atomisp_device *isp = video_get_drvdata(vdev);
struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
- if (buf->index >= vdev->queue->num_buffers)
+ if (buf->index >= vb2_get_num_buffers(vdev->queue))
return -EINVAL;
if (buf->reserved2 & ATOMISP_BUFFER_HAS_PER_FRAME_SETTING) {
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 43/53] media: imx: Stop direct calls to queue num_buffers field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/imx/imx-media-capture.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/media/imx/imx-media-capture.c b/drivers/staging/media/imx/imx-media-capture.c
index 4846078315ff..ce02199e7b1b 100644
--- a/drivers/staging/media/imx/imx-media-capture.c
+++ b/drivers/staging/media/imx/imx-media-capture.c
@@ -605,6 +605,7 @@ static int capture_queue_setup(struct vb2_queue *vq,
{
struct capture_priv *priv = vb2_get_drv_priv(vq);
struct v4l2_pix_format *pix = &priv->vdev.fmt;
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
unsigned int count = *nbuffers;
if (vq->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
@@ -613,14 +614,14 @@ static int capture_queue_setup(struct vb2_queue *vq,
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < pix->sizeimage)
return -EINVAL;
- count += vq->num_buffers;
+ count += q_num_bufs;
}
count = min_t(__u32, VID_MEM_LIMIT / pix->sizeimage, count);
if (*nplanes)
- *nbuffers = (count < vq->num_buffers) ? 0 :
- count - vq->num_buffers;
+ *nbuffers = (count < q_num_bufs) ? 0 :
+ count - q_num_bufs;
else
*nbuffers = count;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 43/53] media: imx: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/imx/imx-media-capture.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/media/imx/imx-media-capture.c b/drivers/staging/media/imx/imx-media-capture.c
index 4846078315ff..ce02199e7b1b 100644
--- a/drivers/staging/media/imx/imx-media-capture.c
+++ b/drivers/staging/media/imx/imx-media-capture.c
@@ -605,6 +605,7 @@ static int capture_queue_setup(struct vb2_queue *vq,
{
struct capture_priv *priv = vb2_get_drv_priv(vq);
struct v4l2_pix_format *pix = &priv->vdev.fmt;
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
unsigned int count = *nbuffers;
if (vq->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
@@ -613,14 +614,14 @@ static int capture_queue_setup(struct vb2_queue *vq,
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < pix->sizeimage)
return -EINVAL;
- count += vq->num_buffers;
+ count += q_num_bufs;
}
count = min_t(__u32, VID_MEM_LIMIT / pix->sizeimage, count);
if (*nplanes)
- *nbuffers = (count < vq->num_buffers) ? 0 :
- count - vq->num_buffers;
+ *nbuffers = (count < q_num_bufs) ? 0 :
+ count - q_num_bufs;
else
*nbuffers = count;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 43/53] media: imx: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/imx/imx-media-capture.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/media/imx/imx-media-capture.c b/drivers/staging/media/imx/imx-media-capture.c
index 4846078315ff..ce02199e7b1b 100644
--- a/drivers/staging/media/imx/imx-media-capture.c
+++ b/drivers/staging/media/imx/imx-media-capture.c
@@ -605,6 +605,7 @@ static int capture_queue_setup(struct vb2_queue *vq,
{
struct capture_priv *priv = vb2_get_drv_priv(vq);
struct v4l2_pix_format *pix = &priv->vdev.fmt;
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
unsigned int count = *nbuffers;
if (vq->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
@@ -613,14 +614,14 @@ static int capture_queue_setup(struct vb2_queue *vq,
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < pix->sizeimage)
return -EINVAL;
- count += vq->num_buffers;
+ count += q_num_bufs;
}
count = min_t(__u32, VID_MEM_LIMIT / pix->sizeimage, count);
if (*nplanes)
- *nbuffers = (count < vq->num_buffers) ? 0 :
- count - vq->num_buffers;
+ *nbuffers = (count < q_num_bufs) ? 0 :
+ count - q_num_bufs;
else
*nbuffers = count;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 44/53] media: meson: vdec: Stop direct calls to queue num_buffers field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/meson/vdec/vdec.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/staging/media/meson/vdec/vdec.c b/drivers/staging/media/meson/vdec/vdec.c
index 219185aaa588..1e2369f104c8 100644
--- a/drivers/staging/media/meson/vdec/vdec.c
+++ b/drivers/staging/media/meson/vdec/vdec.c
@@ -167,22 +167,23 @@ static void process_num_buffers(struct vb2_queue *q,
bool is_reqbufs)
{
const struct amvdec_format *fmt_out = sess->fmt_out;
- unsigned int buffers_total = q->num_buffers + *num_buffers;
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
+ unsigned int buffers_total = q_num_bufs + *num_buffers;
u32 min_buf_capture = v4l2_ctrl_g_ctrl(sess->ctrl_min_buf_capture);
- if (q->num_buffers + *num_buffers < min_buf_capture)
- *num_buffers = min_buf_capture - q->num_buffers;
+ if (q_num_bufs + *num_buffers < min_buf_capture)
+ *num_buffers = min_buf_capture - q_num_bufs;
if (is_reqbufs && buffers_total < fmt_out->min_buffers)
- *num_buffers = fmt_out->min_buffers - q->num_buffers;
+ *num_buffers = fmt_out->min_buffers - q_num_bufs;
if (buffers_total > fmt_out->max_buffers)
- *num_buffers = fmt_out->max_buffers - q->num_buffers;
+ *num_buffers = fmt_out->max_buffers - q_num_bufs;
/* We need to program the complete CAPTURE buffer list
* in registers during start_streaming, and the firmwares
* are free to choose any of them to write frames to. As such,
* we need all of them to be queued into the driver
*/
- sess->num_dst_bufs = q->num_buffers + *num_buffers;
+ sess->num_dst_bufs = q_num_bufs + *num_buffers;
q->min_buffers_needed = max(fmt_out->min_buffers, sess->num_dst_bufs);
}
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 44/53] media: meson: vdec: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/meson/vdec/vdec.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/staging/media/meson/vdec/vdec.c b/drivers/staging/media/meson/vdec/vdec.c
index 219185aaa588..1e2369f104c8 100644
--- a/drivers/staging/media/meson/vdec/vdec.c
+++ b/drivers/staging/media/meson/vdec/vdec.c
@@ -167,22 +167,23 @@ static void process_num_buffers(struct vb2_queue *q,
bool is_reqbufs)
{
const struct amvdec_format *fmt_out = sess->fmt_out;
- unsigned int buffers_total = q->num_buffers + *num_buffers;
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
+ unsigned int buffers_total = q_num_bufs + *num_buffers;
u32 min_buf_capture = v4l2_ctrl_g_ctrl(sess->ctrl_min_buf_capture);
- if (q->num_buffers + *num_buffers < min_buf_capture)
- *num_buffers = min_buf_capture - q->num_buffers;
+ if (q_num_bufs + *num_buffers < min_buf_capture)
+ *num_buffers = min_buf_capture - q_num_bufs;
if (is_reqbufs && buffers_total < fmt_out->min_buffers)
- *num_buffers = fmt_out->min_buffers - q->num_buffers;
+ *num_buffers = fmt_out->min_buffers - q_num_bufs;
if (buffers_total > fmt_out->max_buffers)
- *num_buffers = fmt_out->max_buffers - q->num_buffers;
+ *num_buffers = fmt_out->max_buffers - q_num_bufs;
/* We need to program the complete CAPTURE buffer list
* in registers during start_streaming, and the firmwares
* are free to choose any of them to write frames to. As such,
* we need all of them to be queued into the driver
*/
- sess->num_dst_bufs = q->num_buffers + *num_buffers;
+ sess->num_dst_bufs = q_num_bufs + *num_buffers;
q->min_buffers_needed = max(fmt_out->min_buffers, sess->num_dst_bufs);
}
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 44/53] media: meson: vdec: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/meson/vdec/vdec.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/staging/media/meson/vdec/vdec.c b/drivers/staging/media/meson/vdec/vdec.c
index 219185aaa588..1e2369f104c8 100644
--- a/drivers/staging/media/meson/vdec/vdec.c
+++ b/drivers/staging/media/meson/vdec/vdec.c
@@ -167,22 +167,23 @@ static void process_num_buffers(struct vb2_queue *q,
bool is_reqbufs)
{
const struct amvdec_format *fmt_out = sess->fmt_out;
- unsigned int buffers_total = q->num_buffers + *num_buffers;
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
+ unsigned int buffers_total = q_num_bufs + *num_buffers;
u32 min_buf_capture = v4l2_ctrl_g_ctrl(sess->ctrl_min_buf_capture);
- if (q->num_buffers + *num_buffers < min_buf_capture)
- *num_buffers = min_buf_capture - q->num_buffers;
+ if (q_num_bufs + *num_buffers < min_buf_capture)
+ *num_buffers = min_buf_capture - q_num_bufs;
if (is_reqbufs && buffers_total < fmt_out->min_buffers)
- *num_buffers = fmt_out->min_buffers - q->num_buffers;
+ *num_buffers = fmt_out->min_buffers - q_num_bufs;
if (buffers_total > fmt_out->max_buffers)
- *num_buffers = fmt_out->max_buffers - q->num_buffers;
+ *num_buffers = fmt_out->max_buffers - q_num_bufs;
/* We need to program the complete CAPTURE buffer list
* in registers during start_streaming, and the firmwares
* are free to choose any of them to write frames to. As such,
* we need all of them to be queued into the driver
*/
- sess->num_dst_bufs = q->num_buffers + *num_buffers;
+ sess->num_dst_bufs = q_num_bufs + *num_buffers;
q->min_buffers_needed = max(fmt_out->min_buffers, sess->num_dst_bufs);
}
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 45/53] touchscreen: sur40: Stop direct calls to queue num_buffers field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/input/touchscreen/sur40.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
index 8ddb3f7d307a..e7d2a52169a0 100644
--- a/drivers/input/touchscreen/sur40.c
+++ b/drivers/input/touchscreen/sur40.c
@@ -847,9 +847,10 @@ static int sur40_queue_setup(struct vb2_queue *q,
unsigned int sizes[], struct device *alloc_devs[])
{
struct sur40_state *sur40 = vb2_get_drv_priv(q);
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
- if (q->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - q->num_buffers;
+ if (q_num_bufs + *nbuffers < 3)
+ *nbuffers = 3 - q_num_bufs;
if (*nplanes)
return sizes[0] < sur40->pix_fmt.sizeimage ? -EINVAL : 0;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 45/53] touchscreen: sur40: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/input/touchscreen/sur40.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
index 8ddb3f7d307a..e7d2a52169a0 100644
--- a/drivers/input/touchscreen/sur40.c
+++ b/drivers/input/touchscreen/sur40.c
@@ -847,9 +847,10 @@ static int sur40_queue_setup(struct vb2_queue *q,
unsigned int sizes[], struct device *alloc_devs[])
{
struct sur40_state *sur40 = vb2_get_drv_priv(q);
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
- if (q->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - q->num_buffers;
+ if (q_num_bufs + *nbuffers < 3)
+ *nbuffers = 3 - q_num_bufs;
if (*nplanes)
return sizes[0] < sur40->pix_fmt.sizeimage ? -EINVAL : 0;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 45/53] touchscreen: sur40: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/input/touchscreen/sur40.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
index 8ddb3f7d307a..e7d2a52169a0 100644
--- a/drivers/input/touchscreen/sur40.c
+++ b/drivers/input/touchscreen/sur40.c
@@ -847,9 +847,10 @@ static int sur40_queue_setup(struct vb2_queue *q,
unsigned int sizes[], struct device *alloc_devs[])
{
struct sur40_state *sur40 = vb2_get_drv_priv(q);
+ unsigned int q_num_bufs = vb2_get_num_buffers(q);
- if (q->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - q->num_buffers;
+ if (q_num_bufs + *nbuffers < 3)
+ *nbuffers = 3 - q_num_bufs;
if (*nplanes)
return sizes[0] < sur40->pix_fmt.sizeimage ? -EINVAL : 0;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 46/53] sample: v4l: Stop direct calls to queue num_buffers field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
samples/v4l/v4l2-pci-skeleton.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/samples/v4l/v4l2-pci-skeleton.c b/samples/v4l/v4l2-pci-skeleton.c
index a61f94db18d9..a65aa9d1e9da 100644
--- a/samples/v4l/v4l2-pci-skeleton.c
+++ b/samples/v4l/v4l2-pci-skeleton.c
@@ -155,6 +155,7 @@ static int queue_setup(struct vb2_queue *vq,
unsigned int sizes[], struct device *alloc_devs[])
{
struct skeleton *skel = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
skel->field = skel->format.field;
if (skel->field == V4L2_FIELD_ALTERNATE) {
@@ -167,8 +168,8 @@ static int queue_setup(struct vb2_queue *vq,
skel->field = V4L2_FIELD_TOP;
}
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 3)
+ *nbuffers = 3 - q_num_bufs;
if (*nplanes)
return sizes[0] < skel->format.sizeimage ? -EINVAL : 0;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 46/53] sample: v4l: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
samples/v4l/v4l2-pci-skeleton.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/samples/v4l/v4l2-pci-skeleton.c b/samples/v4l/v4l2-pci-skeleton.c
index a61f94db18d9..a65aa9d1e9da 100644
--- a/samples/v4l/v4l2-pci-skeleton.c
+++ b/samples/v4l/v4l2-pci-skeleton.c
@@ -155,6 +155,7 @@ static int queue_setup(struct vb2_queue *vq,
unsigned int sizes[], struct device *alloc_devs[])
{
struct skeleton *skel = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
skel->field = skel->format.field;
if (skel->field == V4L2_FIELD_ALTERNATE) {
@@ -167,8 +168,8 @@ static int queue_setup(struct vb2_queue *vq,
skel->field = V4L2_FIELD_TOP;
}
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 3)
+ *nbuffers = 3 - q_num_bufs;
if (*nplanes)
return sizes[0] < skel->format.sizeimage ? -EINVAL : 0;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 46/53] sample: v4l: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
samples/v4l/v4l2-pci-skeleton.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/samples/v4l/v4l2-pci-skeleton.c b/samples/v4l/v4l2-pci-skeleton.c
index a61f94db18d9..a65aa9d1e9da 100644
--- a/samples/v4l/v4l2-pci-skeleton.c
+++ b/samples/v4l/v4l2-pci-skeleton.c
@@ -155,6 +155,7 @@ static int queue_setup(struct vb2_queue *vq,
unsigned int sizes[], struct device *alloc_devs[])
{
struct skeleton *skel = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
skel->field = skel->format.field;
if (skel->field == V4L2_FIELD_ALTERNATE) {
@@ -167,8 +168,8 @@ static int queue_setup(struct vb2_queue *vq,
skel->field = V4L2_FIELD_TOP;
}
- if (vq->num_buffers + *nbuffers < 3)
- *nbuffers = 3 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 3)
+ *nbuffers = 3 - q_num_bufs;
if (*nplanes)
return sizes[0] < skel->format.sizeimage ? -EINVAL : 0;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 47/53] media: cedrus: Stop direct calls to queue num_buffers field
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() and queue max_num_buffers field
to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/sunxi/cedrus/cedrus_h264.c | 8 ++++++--
drivers/staging/media/sunxi/cedrus/cedrus_h265.c | 9 +++++++--
2 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
index dfb401df138a..88061310f815 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
@@ -653,8 +653,12 @@ static void cedrus_h264_stop(struct cedrus_ctx *ctx)
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
- for (i = 0; i < vq->num_buffers; i++) {
- buf = vb2_to_cedrus_buffer(vb2_get_buffer(vq, i));
+ for (i = 0; i < vq->max_num_buffers; i++) {
+ struct vb2_buffer *vb = vb2_get_buffer(vq, i);
+
+ if (!vb)
+ continue;
+ buf = vb2_to_cedrus_buffer(vb);
if (buf->codec.h264.mv_col_buf_size > 0) {
dma_free_attrs(dev->dev,
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
index fc9297232456..b8b66d0d951e 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
@@ -869,8 +869,13 @@ static void cedrus_h265_stop(struct cedrus_ctx *ctx)
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
- for (i = 0; i < vq->num_buffers; i++) {
- buf = vb2_to_cedrus_buffer(vb2_get_buffer(vq, i));
+ for (i = 0; i < vq->max_num_buffers; i++) {
+ struct vb2_buffer *vb = vb2_get_buffer(vq, i);
+
+ if (!vb)
+ continue;
+
+ buf = vb2_to_cedrus_buffer(vb);
if (buf->codec.h265.mv_col_buf_size > 0) {
dma_free_attrs(dev->dev,
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 47/53] media: cedrus: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() and queue max_num_buffers field
to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/sunxi/cedrus/cedrus_h264.c | 8 ++++++--
drivers/staging/media/sunxi/cedrus/cedrus_h265.c | 9 +++++++--
2 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
index dfb401df138a..88061310f815 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
@@ -653,8 +653,12 @@ static void cedrus_h264_stop(struct cedrus_ctx *ctx)
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
- for (i = 0; i < vq->num_buffers; i++) {
- buf = vb2_to_cedrus_buffer(vb2_get_buffer(vq, i));
+ for (i = 0; i < vq->max_num_buffers; i++) {
+ struct vb2_buffer *vb = vb2_get_buffer(vq, i);
+
+ if (!vb)
+ continue;
+ buf = vb2_to_cedrus_buffer(vb);
if (buf->codec.h264.mv_col_buf_size > 0) {
dma_free_attrs(dev->dev,
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
index fc9297232456..b8b66d0d951e 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
@@ -869,8 +869,13 @@ static void cedrus_h265_stop(struct cedrus_ctx *ctx)
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
- for (i = 0; i < vq->num_buffers; i++) {
- buf = vb2_to_cedrus_buffer(vb2_get_buffer(vq, i));
+ for (i = 0; i < vq->max_num_buffers; i++) {
+ struct vb2_buffer *vb = vb2_get_buffer(vq, i);
+
+ if (!vb)
+ continue;
+
+ buf = vb2_to_cedrus_buffer(vb);
if (buf->codec.h265.mv_col_buf_size > 0) {
dma_free_attrs(dev->dev,
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 47/53] media: cedrus: Stop direct calls to queue num_buffers field
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Use vb2_get_num_buffers() and queue max_num_buffers field
to avoid using queue num_buffer field directly.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/sunxi/cedrus/cedrus_h264.c | 8 ++++++--
drivers/staging/media/sunxi/cedrus/cedrus_h265.c | 9 +++++++--
2 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
index dfb401df138a..88061310f815 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
@@ -653,8 +653,12 @@ static void cedrus_h264_stop(struct cedrus_ctx *ctx)
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
- for (i = 0; i < vq->num_buffers; i++) {
- buf = vb2_to_cedrus_buffer(vb2_get_buffer(vq, i));
+ for (i = 0; i < vq->max_num_buffers; i++) {
+ struct vb2_buffer *vb = vb2_get_buffer(vq, i);
+
+ if (!vb)
+ continue;
+ buf = vb2_to_cedrus_buffer(vb);
if (buf->codec.h264.mv_col_buf_size > 0) {
dma_free_attrs(dev->dev,
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
index fc9297232456..b8b66d0d951e 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
@@ -869,8 +869,13 @@ static void cedrus_h265_stop(struct cedrus_ctx *ctx)
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
- for (i = 0; i < vq->num_buffers; i++) {
- buf = vb2_to_cedrus_buffer(vb2_get_buffer(vq, i));
+ for (i = 0; i < vq->max_num_buffers; i++) {
+ struct vb2_buffer *vb = vb2_get_buffer(vq, i);
+
+ if (!vb)
+ continue;
+
+ buf = vb2_to_cedrus_buffer(vb);
if (buf->codec.h265.mv_col_buf_size > 0) {
dma_free_attrs(dev->dev,
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 48/53] media: core: Rework how create_buf index returned value is computed
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
When DELETE_BUFS will be introduced holes could created in bufs array.
To be able to reuse these unused indices reworking how create->index
is set is mandatory.
Let __vb2_queue_alloc() decide which first index is correct and
forward this to the caller.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 21 ++++++++++++-------
.../media/common/videobuf2/videobuf2-v4l2.c | 20 +++++++++++-------
include/media/videobuf2-core.h | 5 ++++-
3 files changed, 31 insertions(+), 15 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 320f37e46343..b5a963030cde 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -441,15 +441,21 @@ static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
*/
static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
unsigned int num_buffers, unsigned int num_planes,
- const unsigned plane_sizes[VB2_MAX_PLANES])
+ const unsigned plane_sizes[VB2_MAX_PLANES],
+ unsigned int *first_index)
{
unsigned int buffer, plane;
struct vb2_buffer *vb;
+ unsigned long index;
int ret;
/* Ensure that the number of already queue + num_buffers is below q->max_num_buffers */
num_buffers = min_t(unsigned int, num_buffers,
- q->max_num_buffers - q->num_buffers);
+ q->max_num_buffers - vb2_get_num_buffers(q));
+
+ index = vb2_get_num_buffers(q);
+
+ *first_index = index;
for (buffer = 0; buffer < num_buffers; ++buffer) {
/* Allocate vb2 buffer structures */
@@ -469,7 +475,7 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
vb->planes[plane].min_length = plane_sizes[plane];
}
- vb2_queue_add_buffer(q, vb, q->num_buffers + buffer);
+ vb2_queue_add_buffer(q, vb, index++);
call_void_bufop(q, init_buffer, vb);
/* Allocate video buffer memory for the MMAP type */
@@ -812,7 +818,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int q_num_bufs = vb2_get_num_buffers(q);
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
- unsigned int i;
+ unsigned int i, first_index;
int ret = 0;
if (q->streaming) {
@@ -898,7 +904,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
/* Finally, allocate buffers and video memory */
allocated_buffers =
- __vb2_queue_alloc(q, memory, num_buffers, num_planes, plane_sizes);
+ __vb2_queue_alloc(q, memory, num_buffers, num_planes, plane_sizes, &first_index);
if (allocated_buffers == 0) {
dprintk(q, 1, "memory allocation failed\n");
ret = -ENOMEM;
@@ -972,7 +978,8 @@ EXPORT_SYMBOL_GPL(vb2_core_reqbufs);
int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int flags, unsigned int *count,
unsigned int requested_planes,
- const unsigned int requested_sizes[])
+ const unsigned int requested_sizes[],
+ unsigned int *first_index)
{
unsigned int num_planes = 0, num_buffers, allocated_buffers;
unsigned plane_sizes[VB2_MAX_PLANES] = { };
@@ -1034,7 +1041,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
/* Finally, allocate buffers and video memory */
allocated_buffers = __vb2_queue_alloc(q, memory, num_buffers,
- num_planes, plane_sizes);
+ num_planes, plane_sizes, first_index);
if (allocated_buffers == 0) {
dprintk(q, 1, "memory allocation failed\n");
ret = -ENOMEM;
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 304163e27d10..3d2affb00d19 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -809,11 +809,16 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
for (i = 0; i < requested_planes; i++)
if (requested_sizes[i] == 0)
return -EINVAL;
- return ret ? ret : vb2_core_create_bufs(q, create->memory,
- create->flags,
- &create->count,
- requested_planes,
- requested_sizes);
+ if (ret)
+ return ret;
+
+ ret = vb2_core_create_bufs(q, create->memory,
+ create->flags,
+ &create->count,
+ requested_planes,
+ requested_sizes,
+ &create->index);
+ return ret;
}
EXPORT_SYMBOL_GPL(vb2_create_bufs);
@@ -1041,15 +1046,16 @@ int vb2_ioctl_create_bufs(struct file *file, void *priv,
int res = vb2_verify_memory_type(vdev->queue, p->memory,
p->format.type);
- p->index = vdev->queue->num_buffers;
fill_buf_caps(vdev->queue, &p->capabilities);
validate_memory_flags(vdev->queue, p->memory, &p->flags);
/*
* If count == 0, then just check if memory and type are valid.
* Any -EBUSY result from vb2_verify_memory_type can be mapped to 0.
*/
- if (p->count == 0)
+ if (p->count == 0) {
+ p->index = vb2_get_num_buffers(vdev->queue);
return res != -EBUSY ? res : 0;
+ }
if (res)
return res;
if (vb2_queue_is_busy(vdev->queue, file))
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index dffb9647d4d1..d433bf84e30c 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -803,6 +803,8 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
* @count: requested buffer count.
* @requested_planes: number of planes requested.
* @requested_sizes: array with the size of the planes.
+ * @first_index: index of the first created buffer, all allocated buffers have
+ * indices in the range [first..first+count]
*
* Videobuf2 core helper to implement VIDIOC_CREATE_BUFS() operation. It is
* called internally by VB2 by an API-specific handler, like
@@ -819,7 +821,8 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int flags, unsigned int *count,
unsigned int requested_planes,
- const unsigned int requested_sizes[]);
+ const unsigned int requested_sizes[],
+ unsigned int *first_index);
/**
* vb2_core_prepare_buf() - Pass ownership of a buffer from userspace
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 48/53] media: core: Rework how create_buf index returned value is computed
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
When DELETE_BUFS will be introduced holes could created in bufs array.
To be able to reuse these unused indices reworking how create->index
is set is mandatory.
Let __vb2_queue_alloc() decide which first index is correct and
forward this to the caller.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 21 ++++++++++++-------
.../media/common/videobuf2/videobuf2-v4l2.c | 20 +++++++++++-------
include/media/videobuf2-core.h | 5 ++++-
3 files changed, 31 insertions(+), 15 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 320f37e46343..b5a963030cde 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -441,15 +441,21 @@ static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
*/
static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
unsigned int num_buffers, unsigned int num_planes,
- const unsigned plane_sizes[VB2_MAX_PLANES])
+ const unsigned plane_sizes[VB2_MAX_PLANES],
+ unsigned int *first_index)
{
unsigned int buffer, plane;
struct vb2_buffer *vb;
+ unsigned long index;
int ret;
/* Ensure that the number of already queue + num_buffers is below q->max_num_buffers */
num_buffers = min_t(unsigned int, num_buffers,
- q->max_num_buffers - q->num_buffers);
+ q->max_num_buffers - vb2_get_num_buffers(q));
+
+ index = vb2_get_num_buffers(q);
+
+ *first_index = index;
for (buffer = 0; buffer < num_buffers; ++buffer) {
/* Allocate vb2 buffer structures */
@@ -469,7 +475,7 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
vb->planes[plane].min_length = plane_sizes[plane];
}
- vb2_queue_add_buffer(q, vb, q->num_buffers + buffer);
+ vb2_queue_add_buffer(q, vb, index++);
call_void_bufop(q, init_buffer, vb);
/* Allocate video buffer memory for the MMAP type */
@@ -812,7 +818,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int q_num_bufs = vb2_get_num_buffers(q);
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
- unsigned int i;
+ unsigned int i, first_index;
int ret = 0;
if (q->streaming) {
@@ -898,7 +904,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
/* Finally, allocate buffers and video memory */
allocated_buffers =
- __vb2_queue_alloc(q, memory, num_buffers, num_planes, plane_sizes);
+ __vb2_queue_alloc(q, memory, num_buffers, num_planes, plane_sizes, &first_index);
if (allocated_buffers == 0) {
dprintk(q, 1, "memory allocation failed\n");
ret = -ENOMEM;
@@ -972,7 +978,8 @@ EXPORT_SYMBOL_GPL(vb2_core_reqbufs);
int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int flags, unsigned int *count,
unsigned int requested_planes,
- const unsigned int requested_sizes[])
+ const unsigned int requested_sizes[],
+ unsigned int *first_index)
{
unsigned int num_planes = 0, num_buffers, allocated_buffers;
unsigned plane_sizes[VB2_MAX_PLANES] = { };
@@ -1034,7 +1041,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
/* Finally, allocate buffers and video memory */
allocated_buffers = __vb2_queue_alloc(q, memory, num_buffers,
- num_planes, plane_sizes);
+ num_planes, plane_sizes, first_index);
if (allocated_buffers == 0) {
dprintk(q, 1, "memory allocation failed\n");
ret = -ENOMEM;
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 304163e27d10..3d2affb00d19 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -809,11 +809,16 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
for (i = 0; i < requested_planes; i++)
if (requested_sizes[i] == 0)
return -EINVAL;
- return ret ? ret : vb2_core_create_bufs(q, create->memory,
- create->flags,
- &create->count,
- requested_planes,
- requested_sizes);
+ if (ret)
+ return ret;
+
+ ret = vb2_core_create_bufs(q, create->memory,
+ create->flags,
+ &create->count,
+ requested_planes,
+ requested_sizes,
+ &create->index);
+ return ret;
}
EXPORT_SYMBOL_GPL(vb2_create_bufs);
@@ -1041,15 +1046,16 @@ int vb2_ioctl_create_bufs(struct file *file, void *priv,
int res = vb2_verify_memory_type(vdev->queue, p->memory,
p->format.type);
- p->index = vdev->queue->num_buffers;
fill_buf_caps(vdev->queue, &p->capabilities);
validate_memory_flags(vdev->queue, p->memory, &p->flags);
/*
* If count == 0, then just check if memory and type are valid.
* Any -EBUSY result from vb2_verify_memory_type can be mapped to 0.
*/
- if (p->count == 0)
+ if (p->count == 0) {
+ p->index = vb2_get_num_buffers(vdev->queue);
return res != -EBUSY ? res : 0;
+ }
if (res)
return res;
if (vb2_queue_is_busy(vdev->queue, file))
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index dffb9647d4d1..d433bf84e30c 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -803,6 +803,8 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
* @count: requested buffer count.
* @requested_planes: number of planes requested.
* @requested_sizes: array with the size of the planes.
+ * @first_index: index of the first created buffer, all allocated buffers have
+ * indices in the range [first..first+count]
*
* Videobuf2 core helper to implement VIDIOC_CREATE_BUFS() operation. It is
* called internally by VB2 by an API-specific handler, like
@@ -819,7 +821,8 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int flags, unsigned int *count,
unsigned int requested_planes,
- const unsigned int requested_sizes[]);
+ const unsigned int requested_sizes[],
+ unsigned int *first_index);
/**
* vb2_core_prepare_buf() - Pass ownership of a buffer from userspace
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 48/53] media: core: Rework how create_buf index returned value is computed
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
When DELETE_BUFS will be introduced holes could created in bufs array.
To be able to reuse these unused indices reworking how create->index
is set is mandatory.
Let __vb2_queue_alloc() decide which first index is correct and
forward this to the caller.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 21 ++++++++++++-------
.../media/common/videobuf2/videobuf2-v4l2.c | 20 +++++++++++-------
include/media/videobuf2-core.h | 5 ++++-
3 files changed, 31 insertions(+), 15 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 320f37e46343..b5a963030cde 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -441,15 +441,21 @@ static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
*/
static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
unsigned int num_buffers, unsigned int num_planes,
- const unsigned plane_sizes[VB2_MAX_PLANES])
+ const unsigned plane_sizes[VB2_MAX_PLANES],
+ unsigned int *first_index)
{
unsigned int buffer, plane;
struct vb2_buffer *vb;
+ unsigned long index;
int ret;
/* Ensure that the number of already queue + num_buffers is below q->max_num_buffers */
num_buffers = min_t(unsigned int, num_buffers,
- q->max_num_buffers - q->num_buffers);
+ q->max_num_buffers - vb2_get_num_buffers(q));
+
+ index = vb2_get_num_buffers(q);
+
+ *first_index = index;
for (buffer = 0; buffer < num_buffers; ++buffer) {
/* Allocate vb2 buffer structures */
@@ -469,7 +475,7 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
vb->planes[plane].min_length = plane_sizes[plane];
}
- vb2_queue_add_buffer(q, vb, q->num_buffers + buffer);
+ vb2_queue_add_buffer(q, vb, index++);
call_void_bufop(q, init_buffer, vb);
/* Allocate video buffer memory for the MMAP type */
@@ -812,7 +818,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int q_num_bufs = vb2_get_num_buffers(q);
unsigned plane_sizes[VB2_MAX_PLANES] = { };
bool non_coherent_mem = flags & V4L2_MEMORY_FLAG_NON_COHERENT;
- unsigned int i;
+ unsigned int i, first_index;
int ret = 0;
if (q->streaming) {
@@ -898,7 +904,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
/* Finally, allocate buffers and video memory */
allocated_buffers =
- __vb2_queue_alloc(q, memory, num_buffers, num_planes, plane_sizes);
+ __vb2_queue_alloc(q, memory, num_buffers, num_planes, plane_sizes, &first_index);
if (allocated_buffers == 0) {
dprintk(q, 1, "memory allocation failed\n");
ret = -ENOMEM;
@@ -972,7 +978,8 @@ EXPORT_SYMBOL_GPL(vb2_core_reqbufs);
int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int flags, unsigned int *count,
unsigned int requested_planes,
- const unsigned int requested_sizes[])
+ const unsigned int requested_sizes[],
+ unsigned int *first_index)
{
unsigned int num_planes = 0, num_buffers, allocated_buffers;
unsigned plane_sizes[VB2_MAX_PLANES] = { };
@@ -1034,7 +1041,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
/* Finally, allocate buffers and video memory */
allocated_buffers = __vb2_queue_alloc(q, memory, num_buffers,
- num_planes, plane_sizes);
+ num_planes, plane_sizes, first_index);
if (allocated_buffers == 0) {
dprintk(q, 1, "memory allocation failed\n");
ret = -ENOMEM;
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 304163e27d10..3d2affb00d19 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -809,11 +809,16 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
for (i = 0; i < requested_planes; i++)
if (requested_sizes[i] == 0)
return -EINVAL;
- return ret ? ret : vb2_core_create_bufs(q, create->memory,
- create->flags,
- &create->count,
- requested_planes,
- requested_sizes);
+ if (ret)
+ return ret;
+
+ ret = vb2_core_create_bufs(q, create->memory,
+ create->flags,
+ &create->count,
+ requested_planes,
+ requested_sizes,
+ &create->index);
+ return ret;
}
EXPORT_SYMBOL_GPL(vb2_create_bufs);
@@ -1041,15 +1046,16 @@ int vb2_ioctl_create_bufs(struct file *file, void *priv,
int res = vb2_verify_memory_type(vdev->queue, p->memory,
p->format.type);
- p->index = vdev->queue->num_buffers;
fill_buf_caps(vdev->queue, &p->capabilities);
validate_memory_flags(vdev->queue, p->memory, &p->flags);
/*
* If count == 0, then just check if memory and type are valid.
* Any -EBUSY result from vb2_verify_memory_type can be mapped to 0.
*/
- if (p->count == 0)
+ if (p->count == 0) {
+ p->index = vb2_get_num_buffers(vdev->queue);
return res != -EBUSY ? res : 0;
+ }
if (res)
return res;
if (vb2_queue_is_busy(vdev->queue, file))
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index dffb9647d4d1..d433bf84e30c 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -803,6 +803,8 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
* @count: requested buffer count.
* @requested_planes: number of planes requested.
* @requested_sizes: array with the size of the planes.
+ * @first_index: index of the first created buffer, all allocated buffers have
+ * indices in the range [first..first+count]
*
* Videobuf2 core helper to implement VIDIOC_CREATE_BUFS() operation. It is
* called internally by VB2 by an API-specific handler, like
@@ -819,7 +821,8 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
unsigned int flags, unsigned int *count,
unsigned int requested_planes,
- const unsigned int requested_sizes[]);
+ const unsigned int requested_sizes[],
+ unsigned int *first_index);
/**
* vb2_core_prepare_buf() - Pass ownership of a buffer from userspace
--
2.39.2
_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 49/53] media: core: Add bitmap manage bufs array entries
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Add a bitmap field to know which of bufs array entries are
used or not.
Remove no more used num_buffers field from queue structure.
Use bitmap_find_next_zero_area() to find the first possible
range when creating new buffers to fill the gaps.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 40 +++++++++++++++----
include/media/videobuf2-core.h | 19 ++++++---
2 files changed, 47 insertions(+), 12 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index b5a963030cde..8d35cf7cef42 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -415,11 +415,12 @@ static void init_buffer_cache_hints(struct vb2_queue *q, struct vb2_buffer *vb)
*/
static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, unsigned int index)
{
- WARN_ON(index >= q->max_num_buffers || q->bufs[index]);
+ WARN_ON(index >= q->max_num_buffers || test_bit(index, q->bufs_bitmap));
q->bufs[index] = vb;
vb->index = index;
vb->vb2_queue = q;
+ set_bit(index, q->bufs_bitmap);
}
/**
@@ -428,6 +429,7 @@ static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, uns
*/
static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
{
+ clear_bit(vb->index, vb->vb2_queue->bufs_bitmap);
vb->vb2_queue->bufs[vb->index] = NULL;
vb->vb2_queue = NULL;
}
@@ -449,11 +451,12 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
unsigned long index;
int ret;
- /* Ensure that the number of already queue + num_buffers is below q->max_num_buffers */
+ /* Ensure that vb2_get_num_buffers(q) + num_buffers is no more than q->max_num_buffers */
num_buffers = min_t(unsigned int, num_buffers,
q->max_num_buffers - vb2_get_num_buffers(q));
- index = vb2_get_num_buffers(q);
+ index = bitmap_find_next_zero_area(q->bufs_bitmap, q->max_num_buffers,
+ 0, num_buffers, 0);
*first_index = index;
@@ -875,6 +878,14 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
q->bufs = kcalloc(q->max_num_buffers, sizeof(*q->bufs), GFP_KERNEL);
if (!q->bufs)
ret = -ENOMEM;
+
+ if (!q->bufs_bitmap)
+ q->bufs_bitmap = bitmap_zalloc(q->max_num_buffers, GFP_KERNEL);
+ if (!q->bufs_bitmap) {
+ ret = -ENOMEM;
+ kfree(q->bufs);
+ q->bufs = NULL;
+ }
q->memory = memory;
mutex_unlock(&q->mmap_lock);
if (ret)
@@ -944,7 +955,6 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
}
mutex_lock(&q->mmap_lock);
- q->num_buffers = allocated_buffers;
if (ret < 0) {
/*
@@ -971,6 +981,10 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
mutex_lock(&q->mmap_lock);
q->memory = VB2_MEMORY_UNKNOWN;
mutex_unlock(&q->mmap_lock);
+ kfree(q->bufs);
+ q->bufs = NULL;
+ bitmap_free(q->bufs_bitmap);
+ q->bufs_bitmap = NULL;
return ret;
}
EXPORT_SYMBOL_GPL(vb2_core_reqbufs);
@@ -1007,9 +1021,19 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
q->memory = memory;
if (!q->bufs)
q->bufs = kcalloc(q->max_num_buffers, sizeof(*q->bufs), GFP_KERNEL);
- if (!q->bufs)
+ if (!q->bufs) {
ret = -ENOMEM;
+ goto unlock;
+ }
+ if (!q->bufs_bitmap)
+ q->bufs_bitmap = bitmap_zalloc(q->max_num_buffers, GFP_KERNEL);
+ if (!q->bufs_bitmap) {
+ ret = -ENOMEM;
+ kfree(q->bufs);
+ q->bufs = NULL;
+ }
mutex_unlock(&q->mmap_lock);
+unlock:
if (ret)
return ret;
q->waiting_for_buffers = !q->is_output;
@@ -1071,7 +1095,6 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
}
mutex_lock(&q->mmap_lock);
- q->num_buffers += allocated_buffers;
if (ret < 0) {
/*
@@ -2548,6 +2571,9 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_queue_free(q, q->max_num_buffers);
kfree(q->bufs);
q->bufs = NULL;
+ bitmap_free(q->bufs_bitmap);
+ q->bufs_bitmap = NULL;
+
mutex_unlock(&q->mmap_lock);
}
EXPORT_SYMBOL_GPL(vb2_core_queue_release);
@@ -2902,7 +2928,7 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
* Check if we need to dequeue the buffer.
*/
index = fileio->cur_index;
- if (index >= q->num_buffers) {
+ if (!test_bit(index, q->bufs_bitmap)) {
struct vb2_buffer *b;
/*
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index d433bf84e30c..fc1fcd8faa64 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -346,7 +346,7 @@ struct vb2_buffer {
* describes the requested number of planes and sizes\[\]
* contains the requested plane sizes. In this case
* \*num_buffers are being allocated additionally to
- * q->num_buffers. If either \*num_planes or the requested
+ * queue buffers. If either \*num_planes or the requested
* sizes are invalid callback must return %-EINVAL.
* @wait_prepare: release any locks taken while calling vb2 functions;
* it is called before an ioctl needs to wait for a new
@@ -557,7 +557,7 @@ struct vb2_buf_ops {
* @memory: current memory type used
* @dma_dir: DMA mapping direction.
* @bufs: videobuf2 buffer structures
- * @num_buffers: number of allocated/used buffers
+ * @bufs_bitmap: bitmap to manage bufs entries.
* @max_num_buffers: upper limit of number of allocated/used buffers
* @queued_list: list of buffers currently queued from userspace
* @queued_count: number of buffers queued and ready for streaming.
@@ -621,7 +621,7 @@ struct vb2_queue {
unsigned int memory;
enum dma_data_direction dma_dir;
struct vb2_buffer **bufs;
- unsigned int num_buffers;
+ unsigned long *bufs_bitmap;
unsigned int max_num_buffers;
struct list_head queued_list;
@@ -1150,7 +1150,10 @@ static inline bool vb2_fileio_is_active(struct vb2_queue *q)
*/
static inline unsigned int vb2_get_num_buffers(struct vb2_queue *q)
{
- return q->num_buffers;
+ if (!q->bufs_bitmap)
+ return 0;
+
+ return bitmap_weight(q->bufs_bitmap, q->max_num_buffers);
}
/**
@@ -1253,7 +1256,13 @@ static inline void vb2_clear_last_buffer_dequeued(struct vb2_queue *q)
static inline struct vb2_buffer *vb2_get_buffer(struct vb2_queue *q,
unsigned int index)
{
- if (index < q->num_buffers)
+ if (!q->bufs_bitmap)
+ return NULL;
+
+ if (index >= q->max_num_buffers)
+ return NULL;
+
+ if (test_bit(index, q->bufs_bitmap))
return q->bufs[index];
return NULL;
}
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 49/53] media: core: Add bitmap manage bufs array entries
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Add a bitmap field to know which of bufs array entries are
used or not.
Remove no more used num_buffers field from queue structure.
Use bitmap_find_next_zero_area() to find the first possible
range when creating new buffers to fill the gaps.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 40 +++++++++++++++----
include/media/videobuf2-core.h | 19 ++++++---
2 files changed, 47 insertions(+), 12 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index b5a963030cde..8d35cf7cef42 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -415,11 +415,12 @@ static void init_buffer_cache_hints(struct vb2_queue *q, struct vb2_buffer *vb)
*/
static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, unsigned int index)
{
- WARN_ON(index >= q->max_num_buffers || q->bufs[index]);
+ WARN_ON(index >= q->max_num_buffers || test_bit(index, q->bufs_bitmap));
q->bufs[index] = vb;
vb->index = index;
vb->vb2_queue = q;
+ set_bit(index, q->bufs_bitmap);
}
/**
@@ -428,6 +429,7 @@ static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, uns
*/
static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
{
+ clear_bit(vb->index, vb->vb2_queue->bufs_bitmap);
vb->vb2_queue->bufs[vb->index] = NULL;
vb->vb2_queue = NULL;
}
@@ -449,11 +451,12 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
unsigned long index;
int ret;
- /* Ensure that the number of already queue + num_buffers is below q->max_num_buffers */
+ /* Ensure that vb2_get_num_buffers(q) + num_buffers is no more than q->max_num_buffers */
num_buffers = min_t(unsigned int, num_buffers,
q->max_num_buffers - vb2_get_num_buffers(q));
- index = vb2_get_num_buffers(q);
+ index = bitmap_find_next_zero_area(q->bufs_bitmap, q->max_num_buffers,
+ 0, num_buffers, 0);
*first_index = index;
@@ -875,6 +878,14 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
q->bufs = kcalloc(q->max_num_buffers, sizeof(*q->bufs), GFP_KERNEL);
if (!q->bufs)
ret = -ENOMEM;
+
+ if (!q->bufs_bitmap)
+ q->bufs_bitmap = bitmap_zalloc(q->max_num_buffers, GFP_KERNEL);
+ if (!q->bufs_bitmap) {
+ ret = -ENOMEM;
+ kfree(q->bufs);
+ q->bufs = NULL;
+ }
q->memory = memory;
mutex_unlock(&q->mmap_lock);
if (ret)
@@ -944,7 +955,6 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
}
mutex_lock(&q->mmap_lock);
- q->num_buffers = allocated_buffers;
if (ret < 0) {
/*
@@ -971,6 +981,10 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
mutex_lock(&q->mmap_lock);
q->memory = VB2_MEMORY_UNKNOWN;
mutex_unlock(&q->mmap_lock);
+ kfree(q->bufs);
+ q->bufs = NULL;
+ bitmap_free(q->bufs_bitmap);
+ q->bufs_bitmap = NULL;
return ret;
}
EXPORT_SYMBOL_GPL(vb2_core_reqbufs);
@@ -1007,9 +1021,19 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
q->memory = memory;
if (!q->bufs)
q->bufs = kcalloc(q->max_num_buffers, sizeof(*q->bufs), GFP_KERNEL);
- if (!q->bufs)
+ if (!q->bufs) {
ret = -ENOMEM;
+ goto unlock;
+ }
+ if (!q->bufs_bitmap)
+ q->bufs_bitmap = bitmap_zalloc(q->max_num_buffers, GFP_KERNEL);
+ if (!q->bufs_bitmap) {
+ ret = -ENOMEM;
+ kfree(q->bufs);
+ q->bufs = NULL;
+ }
mutex_unlock(&q->mmap_lock);
+unlock:
if (ret)
return ret;
q->waiting_for_buffers = !q->is_output;
@@ -1071,7 +1095,6 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
}
mutex_lock(&q->mmap_lock);
- q->num_buffers += allocated_buffers;
if (ret < 0) {
/*
@@ -2548,6 +2571,9 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_queue_free(q, q->max_num_buffers);
kfree(q->bufs);
q->bufs = NULL;
+ bitmap_free(q->bufs_bitmap);
+ q->bufs_bitmap = NULL;
+
mutex_unlock(&q->mmap_lock);
}
EXPORT_SYMBOL_GPL(vb2_core_queue_release);
@@ -2902,7 +2928,7 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
* Check if we need to dequeue the buffer.
*/
index = fileio->cur_index;
- if (index >= q->num_buffers) {
+ if (!test_bit(index, q->bufs_bitmap)) {
struct vb2_buffer *b;
/*
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index d433bf84e30c..fc1fcd8faa64 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -346,7 +346,7 @@ struct vb2_buffer {
* describes the requested number of planes and sizes\[\]
* contains the requested plane sizes. In this case
* \*num_buffers are being allocated additionally to
- * q->num_buffers. If either \*num_planes or the requested
+ * queue buffers. If either \*num_planes or the requested
* sizes are invalid callback must return %-EINVAL.
* @wait_prepare: release any locks taken while calling vb2 functions;
* it is called before an ioctl needs to wait for a new
@@ -557,7 +557,7 @@ struct vb2_buf_ops {
* @memory: current memory type used
* @dma_dir: DMA mapping direction.
* @bufs: videobuf2 buffer structures
- * @num_buffers: number of allocated/used buffers
+ * @bufs_bitmap: bitmap to manage bufs entries.
* @max_num_buffers: upper limit of number of allocated/used buffers
* @queued_list: list of buffers currently queued from userspace
* @queued_count: number of buffers queued and ready for streaming.
@@ -621,7 +621,7 @@ struct vb2_queue {
unsigned int memory;
enum dma_data_direction dma_dir;
struct vb2_buffer **bufs;
- unsigned int num_buffers;
+ unsigned long *bufs_bitmap;
unsigned int max_num_buffers;
struct list_head queued_list;
@@ -1150,7 +1150,10 @@ static inline bool vb2_fileio_is_active(struct vb2_queue *q)
*/
static inline unsigned int vb2_get_num_buffers(struct vb2_queue *q)
{
- return q->num_buffers;
+ if (!q->bufs_bitmap)
+ return 0;
+
+ return bitmap_weight(q->bufs_bitmap, q->max_num_buffers);
}
/**
@@ -1253,7 +1256,13 @@ static inline void vb2_clear_last_buffer_dequeued(struct vb2_queue *q)
static inline struct vb2_buffer *vb2_get_buffer(struct vb2_queue *q,
unsigned int index)
{
- if (index < q->num_buffers)
+ if (!q->bufs_bitmap)
+ return NULL;
+
+ if (index >= q->max_num_buffers)
+ return NULL;
+
+ if (test_bit(index, q->bufs_bitmap))
return q->bufs[index];
return NULL;
}
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 49/53] media: core: Add bitmap manage bufs array entries
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Add a bitmap field to know which of bufs array entries are
used or not.
Remove no more used num_buffers field from queue structure.
Use bitmap_find_next_zero_area() to find the first possible
range when creating new buffers to fill the gaps.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 40 +++++++++++++++----
include/media/videobuf2-core.h | 19 ++++++---
2 files changed, 47 insertions(+), 12 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index b5a963030cde..8d35cf7cef42 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -415,11 +415,12 @@ static void init_buffer_cache_hints(struct vb2_queue *q, struct vb2_buffer *vb)
*/
static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, unsigned int index)
{
- WARN_ON(index >= q->max_num_buffers || q->bufs[index]);
+ WARN_ON(index >= q->max_num_buffers || test_bit(index, q->bufs_bitmap));
q->bufs[index] = vb;
vb->index = index;
vb->vb2_queue = q;
+ set_bit(index, q->bufs_bitmap);
}
/**
@@ -428,6 +429,7 @@ static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, uns
*/
static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
{
+ clear_bit(vb->index, vb->vb2_queue->bufs_bitmap);
vb->vb2_queue->bufs[vb->index] = NULL;
vb->vb2_queue = NULL;
}
@@ -449,11 +451,12 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
unsigned long index;
int ret;
- /* Ensure that the number of already queue + num_buffers is below q->max_num_buffers */
+ /* Ensure that vb2_get_num_buffers(q) + num_buffers is no more than q->max_num_buffers */
num_buffers = min_t(unsigned int, num_buffers,
q->max_num_buffers - vb2_get_num_buffers(q));
- index = vb2_get_num_buffers(q);
+ index = bitmap_find_next_zero_area(q->bufs_bitmap, q->max_num_buffers,
+ 0, num_buffers, 0);
*first_index = index;
@@ -875,6 +878,14 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
q->bufs = kcalloc(q->max_num_buffers, sizeof(*q->bufs), GFP_KERNEL);
if (!q->bufs)
ret = -ENOMEM;
+
+ if (!q->bufs_bitmap)
+ q->bufs_bitmap = bitmap_zalloc(q->max_num_buffers, GFP_KERNEL);
+ if (!q->bufs_bitmap) {
+ ret = -ENOMEM;
+ kfree(q->bufs);
+ q->bufs = NULL;
+ }
q->memory = memory;
mutex_unlock(&q->mmap_lock);
if (ret)
@@ -944,7 +955,6 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
}
mutex_lock(&q->mmap_lock);
- q->num_buffers = allocated_buffers;
if (ret < 0) {
/*
@@ -971,6 +981,10 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
mutex_lock(&q->mmap_lock);
q->memory = VB2_MEMORY_UNKNOWN;
mutex_unlock(&q->mmap_lock);
+ kfree(q->bufs);
+ q->bufs = NULL;
+ bitmap_free(q->bufs_bitmap);
+ q->bufs_bitmap = NULL;
return ret;
}
EXPORT_SYMBOL_GPL(vb2_core_reqbufs);
@@ -1007,9 +1021,19 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
q->memory = memory;
if (!q->bufs)
q->bufs = kcalloc(q->max_num_buffers, sizeof(*q->bufs), GFP_KERNEL);
- if (!q->bufs)
+ if (!q->bufs) {
ret = -ENOMEM;
+ goto unlock;
+ }
+ if (!q->bufs_bitmap)
+ q->bufs_bitmap = bitmap_zalloc(q->max_num_buffers, GFP_KERNEL);
+ if (!q->bufs_bitmap) {
+ ret = -ENOMEM;
+ kfree(q->bufs);
+ q->bufs = NULL;
+ }
mutex_unlock(&q->mmap_lock);
+unlock:
if (ret)
return ret;
q->waiting_for_buffers = !q->is_output;
@@ -1071,7 +1095,6 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
}
mutex_lock(&q->mmap_lock);
- q->num_buffers += allocated_buffers;
if (ret < 0) {
/*
@@ -2548,6 +2571,9 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_queue_free(q, q->max_num_buffers);
kfree(q->bufs);
q->bufs = NULL;
+ bitmap_free(q->bufs_bitmap);
+ q->bufs_bitmap = NULL;
+
mutex_unlock(&q->mmap_lock);
}
EXPORT_SYMBOL_GPL(vb2_core_queue_release);
@@ -2902,7 +2928,7 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_
* Check if we need to dequeue the buffer.
*/
index = fileio->cur_index;
- if (index >= q->num_buffers) {
+ if (!test_bit(index, q->bufs_bitmap)) {
struct vb2_buffer *b;
/*
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index d433bf84e30c..fc1fcd8faa64 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -346,7 +346,7 @@ struct vb2_buffer {
* describes the requested number of planes and sizes\[\]
* contains the requested plane sizes. In this case
* \*num_buffers are being allocated additionally to
- * q->num_buffers. If either \*num_planes or the requested
+ * queue buffers. If either \*num_planes or the requested
* sizes are invalid callback must return %-EINVAL.
* @wait_prepare: release any locks taken while calling vb2 functions;
* it is called before an ioctl needs to wait for a new
@@ -557,7 +557,7 @@ struct vb2_buf_ops {
* @memory: current memory type used
* @dma_dir: DMA mapping direction.
* @bufs: videobuf2 buffer structures
- * @num_buffers: number of allocated/used buffers
+ * @bufs_bitmap: bitmap to manage bufs entries.
* @max_num_buffers: upper limit of number of allocated/used buffers
* @queued_list: list of buffers currently queued from userspace
* @queued_count: number of buffers queued and ready for streaming.
@@ -621,7 +621,7 @@ struct vb2_queue {
unsigned int memory;
enum dma_data_direction dma_dir;
struct vb2_buffer **bufs;
- unsigned int num_buffers;
+ unsigned long *bufs_bitmap;
unsigned int max_num_buffers;
struct list_head queued_list;
@@ -1150,7 +1150,10 @@ static inline bool vb2_fileio_is_active(struct vb2_queue *q)
*/
static inline unsigned int vb2_get_num_buffers(struct vb2_queue *q)
{
- return q->num_buffers;
+ if (!q->bufs_bitmap)
+ return 0;
+
+ return bitmap_weight(q->bufs_bitmap, q->max_num_buffers);
}
/**
@@ -1253,7 +1256,13 @@ static inline void vb2_clear_last_buffer_dequeued(struct vb2_queue *q)
static inline struct vb2_buffer *vb2_get_buffer(struct vb2_queue *q,
unsigned int index)
{
- if (index < q->num_buffers)
+ if (!q->bufs_bitmap)
+ return NULL;
+
+ if (index >= q->max_num_buffers)
+ return NULL;
+
+ if (test_bit(index, q->bufs_bitmap))
return q->bufs[index];
return NULL;
}
--
2.39.2
_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 50/53] media: core: Free range of buffers
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Improve __vb2_queue_free() and __vb2_free_mem() to free
range of buffers and not only the last few buffers.
Intoduce starting index to be flexible on range and change the loops
according to this parameters.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 36 ++++++++-----------
1 file changed, 15 insertions(+), 21 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 8d35cf7cef42..3bf455f03461 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -518,13 +518,12 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
/*
* __vb2_free_mem() - release all video buffer memory for a given queue
*/
-static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
+static void __vb2_free_mem(struct vb2_queue *q, unsigned int start, unsigned int count)
{
- unsigned int buffer = 0;
- long i = q->max_num_buffers;
+ unsigned int i;
struct vb2_buffer *vb;
- for (i = q->max_num_buffers; i >= 0 && buffer < buffers; i--) {
+ for (i = start; i < q->max_num_buffers && i < start + count; i++) {
vb = vb2_get_buffer(q, i);
if (!vb)
continue;
@@ -536,36 +535,32 @@ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
__vb2_buf_dmabuf_put(vb);
else
__vb2_buf_userptr_put(vb);
- buffer++;
}
}
/*
- * __vb2_queue_free() - free buffers at the end of the queue - video memory and
+ * __vb2_queue_free() - free count buffers from start index of the queue - video memory and
* related information, if no buffers are left return the queue to an
* uninitialized state. Might be called even if the queue has already been freed.
*/
-static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
+static void __vb2_queue_free(struct vb2_queue *q, unsigned int start, unsigned int count)
{
- unsigned int buffer;
- long i = q->max_num_buffers;
+ unsigned int i;
lockdep_assert_held(&q->mmap_lock);
/* Call driver-provided cleanup function for each buffer, if provided */
- for (i = q->max_num_buffers, buffer = 0; i >= 0 && buffer < buffers; i--) {
+ for (i = start; i < q->max_num_buffers && i < start + count; i++) {
struct vb2_buffer *vb = vb2_get_buffer(q, i);
if (!vb)
continue;
- if (vb->planes[0].mem_priv) {
+ if (vb->planes[0].mem_priv)
call_void_vb_qop(vb, buf_cleanup, vb);
- buffer++;
- }
}
/* Release video buffer memory */
- __vb2_free_mem(q, buffers);
+ __vb2_free_mem(q, start, count);
#ifdef CONFIG_VIDEO_ADV_DEBUG
/*
@@ -650,15 +645,14 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
#endif
/* Free vb2 buffers */
- for (i = q->max_num_buffers, buffer = 0; i > 0 && buffer < buffers; i--) {
- struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+ for (i = start; i < q->max_num_buffers && i < start + count; i++) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
if (!vb)
continue;
vb2_queue_remove_buffer(vb);
kfree(vb);
- buffer++;
}
if (!vb2_get_num_buffers(q)) {
@@ -852,7 +846,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
* queued without ever calling STREAMON.
*/
__vb2_queue_cancel(q);
- __vb2_queue_free(q, q_num_bufs);
+ __vb2_queue_free(q, 0, q_num_bufs);
mutex_unlock(&q->mmap_lock);
/*
@@ -962,7 +956,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
* from already queued buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
- __vb2_queue_free(q, allocated_buffers);
+ __vb2_queue_free(q, first_index, allocated_buffers);
mutex_unlock(&q->mmap_lock);
return ret;
}
@@ -1102,7 +1096,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
* from already queued buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
- __vb2_queue_free(q, allocated_buffers);
+ __vb2_queue_free(q, *first_index, allocated_buffers);
mutex_unlock(&q->mmap_lock);
return -ENOMEM;
}
@@ -2568,7 +2562,7 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_cleanup_fileio(q);
__vb2_queue_cancel(q);
mutex_lock(&q->mmap_lock);
- __vb2_queue_free(q, q->max_num_buffers);
+ __vb2_queue_free(q, 0, q->max_num_buffers);
kfree(q->bufs);
q->bufs = NULL;
bitmap_free(q->bufs_bitmap);
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 50/53] media: core: Free range of buffers
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Improve __vb2_queue_free() and __vb2_free_mem() to free
range of buffers and not only the last few buffers.
Intoduce starting index to be flexible on range and change the loops
according to this parameters.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 36 ++++++++-----------
1 file changed, 15 insertions(+), 21 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 8d35cf7cef42..3bf455f03461 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -518,13 +518,12 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
/*
* __vb2_free_mem() - release all video buffer memory for a given queue
*/
-static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
+static void __vb2_free_mem(struct vb2_queue *q, unsigned int start, unsigned int count)
{
- unsigned int buffer = 0;
- long i = q->max_num_buffers;
+ unsigned int i;
struct vb2_buffer *vb;
- for (i = q->max_num_buffers; i >= 0 && buffer < buffers; i--) {
+ for (i = start; i < q->max_num_buffers && i < start + count; i++) {
vb = vb2_get_buffer(q, i);
if (!vb)
continue;
@@ -536,36 +535,32 @@ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
__vb2_buf_dmabuf_put(vb);
else
__vb2_buf_userptr_put(vb);
- buffer++;
}
}
/*
- * __vb2_queue_free() - free buffers at the end of the queue - video memory and
+ * __vb2_queue_free() - free count buffers from start index of the queue - video memory and
* related information, if no buffers are left return the queue to an
* uninitialized state. Might be called even if the queue has already been freed.
*/
-static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
+static void __vb2_queue_free(struct vb2_queue *q, unsigned int start, unsigned int count)
{
- unsigned int buffer;
- long i = q->max_num_buffers;
+ unsigned int i;
lockdep_assert_held(&q->mmap_lock);
/* Call driver-provided cleanup function for each buffer, if provided */
- for (i = q->max_num_buffers, buffer = 0; i >= 0 && buffer < buffers; i--) {
+ for (i = start; i < q->max_num_buffers && i < start + count; i++) {
struct vb2_buffer *vb = vb2_get_buffer(q, i);
if (!vb)
continue;
- if (vb->planes[0].mem_priv) {
+ if (vb->planes[0].mem_priv)
call_void_vb_qop(vb, buf_cleanup, vb);
- buffer++;
- }
}
/* Release video buffer memory */
- __vb2_free_mem(q, buffers);
+ __vb2_free_mem(q, start, count);
#ifdef CONFIG_VIDEO_ADV_DEBUG
/*
@@ -650,15 +645,14 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
#endif
/* Free vb2 buffers */
- for (i = q->max_num_buffers, buffer = 0; i > 0 && buffer < buffers; i--) {
- struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+ for (i = start; i < q->max_num_buffers && i < start + count; i++) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
if (!vb)
continue;
vb2_queue_remove_buffer(vb);
kfree(vb);
- buffer++;
}
if (!vb2_get_num_buffers(q)) {
@@ -852,7 +846,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
* queued without ever calling STREAMON.
*/
__vb2_queue_cancel(q);
- __vb2_queue_free(q, q_num_bufs);
+ __vb2_queue_free(q, 0, q_num_bufs);
mutex_unlock(&q->mmap_lock);
/*
@@ -962,7 +956,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
* from already queued buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
- __vb2_queue_free(q, allocated_buffers);
+ __vb2_queue_free(q, first_index, allocated_buffers);
mutex_unlock(&q->mmap_lock);
return ret;
}
@@ -1102,7 +1096,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
* from already queued buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
- __vb2_queue_free(q, allocated_buffers);
+ __vb2_queue_free(q, *first_index, allocated_buffers);
mutex_unlock(&q->mmap_lock);
return -ENOMEM;
}
@@ -2568,7 +2562,7 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_cleanup_fileio(q);
__vb2_queue_cancel(q);
mutex_lock(&q->mmap_lock);
- __vb2_queue_free(q, q->max_num_buffers);
+ __vb2_queue_free(q, 0, q->max_num_buffers);
kfree(q->bufs);
q->bufs = NULL;
bitmap_free(q->bufs_bitmap);
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 50/53] media: core: Free range of buffers
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Improve __vb2_queue_free() and __vb2_free_mem() to free
range of buffers and not only the last few buffers.
Intoduce starting index to be flexible on range and change the loops
according to this parameters.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/common/videobuf2/videobuf2-core.c | 36 ++++++++-----------
1 file changed, 15 insertions(+), 21 deletions(-)
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 8d35cf7cef42..3bf455f03461 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -518,13 +518,12 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
/*
* __vb2_free_mem() - release all video buffer memory for a given queue
*/
-static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
+static void __vb2_free_mem(struct vb2_queue *q, unsigned int start, unsigned int count)
{
- unsigned int buffer = 0;
- long i = q->max_num_buffers;
+ unsigned int i;
struct vb2_buffer *vb;
- for (i = q->max_num_buffers; i >= 0 && buffer < buffers; i--) {
+ for (i = start; i < q->max_num_buffers && i < start + count; i++) {
vb = vb2_get_buffer(q, i);
if (!vb)
continue;
@@ -536,36 +535,32 @@ static void __vb2_free_mem(struct vb2_queue *q, unsigned int buffers)
__vb2_buf_dmabuf_put(vb);
else
__vb2_buf_userptr_put(vb);
- buffer++;
}
}
/*
- * __vb2_queue_free() - free buffers at the end of the queue - video memory and
+ * __vb2_queue_free() - free count buffers from start index of the queue - video memory and
* related information, if no buffers are left return the queue to an
* uninitialized state. Might be called even if the queue has already been freed.
*/
-static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
+static void __vb2_queue_free(struct vb2_queue *q, unsigned int start, unsigned int count)
{
- unsigned int buffer;
- long i = q->max_num_buffers;
+ unsigned int i;
lockdep_assert_held(&q->mmap_lock);
/* Call driver-provided cleanup function for each buffer, if provided */
- for (i = q->max_num_buffers, buffer = 0; i >= 0 && buffer < buffers; i--) {
+ for (i = start; i < q->max_num_buffers && i < start + count; i++) {
struct vb2_buffer *vb = vb2_get_buffer(q, i);
if (!vb)
continue;
- if (vb->planes[0].mem_priv) {
+ if (vb->planes[0].mem_priv)
call_void_vb_qop(vb, buf_cleanup, vb);
- buffer++;
- }
}
/* Release video buffer memory */
- __vb2_free_mem(q, buffers);
+ __vb2_free_mem(q, start, count);
#ifdef CONFIG_VIDEO_ADV_DEBUG
/*
@@ -650,15 +645,14 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
#endif
/* Free vb2 buffers */
- for (i = q->max_num_buffers, buffer = 0; i > 0 && buffer < buffers; i--) {
- struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+ for (i = start; i < q->max_num_buffers && i < start + count; i++) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
if (!vb)
continue;
vb2_queue_remove_buffer(vb);
kfree(vb);
- buffer++;
}
if (!vb2_get_num_buffers(q)) {
@@ -852,7 +846,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
* queued without ever calling STREAMON.
*/
__vb2_queue_cancel(q);
- __vb2_queue_free(q, q_num_bufs);
+ __vb2_queue_free(q, 0, q_num_bufs);
mutex_unlock(&q->mmap_lock);
/*
@@ -962,7 +956,7 @@ int vb2_core_reqbufs(struct vb2_queue *q, enum vb2_memory memory,
* from already queued buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
- __vb2_queue_free(q, allocated_buffers);
+ __vb2_queue_free(q, first_index, allocated_buffers);
mutex_unlock(&q->mmap_lock);
return ret;
}
@@ -1102,7 +1096,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
* from already queued buffers and it will reset q->memory to
* VB2_MEMORY_UNKNOWN.
*/
- __vb2_queue_free(q, allocated_buffers);
+ __vb2_queue_free(q, *first_index, allocated_buffers);
mutex_unlock(&q->mmap_lock);
return -ENOMEM;
}
@@ -2568,7 +2562,7 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_cleanup_fileio(q);
__vb2_queue_cancel(q);
mutex_lock(&q->mmap_lock);
- __vb2_queue_free(q, q->max_num_buffers);
+ __vb2_queue_free(q, 0, q->max_num_buffers);
kfree(q->bufs);
q->bufs = NULL;
bitmap_free(q->bufs_bitmap);
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 51/53] media: v4l2: Add DELETE_BUFS ioctl
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
VIDIOC_DELETE_BUFS ioctl allows to delete buffers from a queue.
The number of buffers to delete in given by count field of
struct v4l2_delete_buffers and the range start at the index
specified in the same structure.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
version 8:
- Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS capabilities flag.
- Fix warnings in documentation.
.../userspace-api/media/v4l/user-func.rst | 1 +
.../media/v4l/vidioc-delete-bufs.rst | 80 +++++++++++++++++++
.../media/v4l/vidioc-reqbufs.rst | 1 +
.../media/common/videobuf2/videobuf2-core.c | 30 +++++++
.../media/common/videobuf2/videobuf2-v4l2.c | 20 +++++
drivers/media/v4l2-core/v4l2-dev.c | 1 +
drivers/media/v4l2-core/v4l2-ioctl.c | 17 ++++
include/media/v4l2-ioctl.h | 4 +
include/media/videobuf2-core.h | 12 +++
include/media/videobuf2-v4l2.h | 13 +++
include/uapi/linux/videodev2.h | 17 ++++
11 files changed, 196 insertions(+)
create mode 100644 Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
diff --git a/Documentation/userspace-api/media/v4l/user-func.rst b/Documentation/userspace-api/media/v4l/user-func.rst
index 15ff0bf7bbe6..3fd567695477 100644
--- a/Documentation/userspace-api/media/v4l/user-func.rst
+++ b/Documentation/userspace-api/media/v4l/user-func.rst
@@ -17,6 +17,7 @@ Function Reference
vidioc-dbg-g-chip-info
vidioc-dbg-g-register
vidioc-decoder-cmd
+ vidioc-delete-bufs
vidioc-dqevent
vidioc-dv-timings-cap
vidioc-encoder-cmd
diff --git a/Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
new file mode 100644
index 000000000000..4791df1395d6
--- /dev/null
+++ b/Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
@@ -0,0 +1,80 @@
+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: V4L
+
+.. _VIDIOC_DELETE_BUFS:
+
+************************
+ioctl VIDIOC_DELETE_BUFS
+************************
+
+Name
+====
+
+VIDIOC_DELETE_BUFS - Deletes buffers from a queue
+Drivers using this feature must expose the ``V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS``
+capability on the queue :c:func:`VIDIOC_REQBUFS` or :c:func:`VIDIOC_CREATE_BUFS`
+are invoked.
+
+Synopsis
+========
+
+.. c:macro:: VIDIOC_DELETE_BUFs
+
+``int ioctl(int fd, VIDIOC_DELETE_BUFs, struct v4l2_delete_buffers *argp)``
+
+Arguments
+=========
+
+``fd``
+ File descriptor returned by :c:func:`open()`.
+
+``argp``
+ Pointer to struct :c:type:`v4l2_delete_buffers`.
+
+Description
+===========
+
+Applications can optionally call the :ref:`VIDIOC_DELETE_BUFS` ioctl to
+delete buffers from a queue.
+
+.. c:type:: v4l2_delete_buffers
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.5cm}|
+
+.. flat-table:: struct v4l2_delete_buffers
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u32
+ - ``index``
+ - The starting buffer index to delete.
+ * - __u32
+ - ``count``
+ - The number of buffers to be deleted with indices 'index' until 'index + count - 1'.
+ All buffers in this range must be valid and in DEQUEUED state.
+ In error case errno is set to ``EINVAL`` error code and index returns the index of
+ the invalid buffer.
+ If count and index are set to 0 :ref:`VIDIOC_DELETE_BUFS` will return 0.
+ * - __u32
+ - ``type``
+ - Type of the stream or buffers, this is the same as the struct
+ :c:type:`v4l2_format` ``type`` field. See
+ :c:type:`v4l2_buf_type` for valid values.
+ * - __u32
+ - ``reserved``\ [13]
+ - A place holder for future extensions. Drivers and applications
+ must set the array to zero.
+
+Return Value
+============
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+EBUSY
+ File I/O is in progress.
+
+EINVAL
+ The buffer ``index`` doesn't exist in the queue.
diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
index 0395187e1a5a..bcdf72dcbc22 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
@@ -121,6 +121,7 @@ aborting or finishing any DMA in progress, an implicit
.. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
.. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
+.. _V4L2-BUF-CAP-SUPPORTS-DELETE-BUFS:
.. raw:: latex
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 3bf455f03461..98e72acab408 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -1664,6 +1664,36 @@ int vb2_core_prepare_buf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb)
}
EXPORT_SYMBOL_GPL(vb2_core_prepare_buf);
+int vb2_core_delete_bufs(struct vb2_queue *q, unsigned int start, unsigned int count)
+{
+ unsigned int i, ret = 0;
+
+ if (start == 0 && count == 0)
+ return 0;
+
+ mutex_lock(&q->mmap_lock);
+
+ for (i = start; i < start + count && i < q->max_num_buffers; i++) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
+
+ if (!vb) {
+ ret = -EINVAL;
+ goto unlock;
+ }
+ if (vb->state != VB2_BUF_STATE_DEQUEUED) {
+ ret = -EINVAL;
+ goto unlock;
+ }
+ }
+ __vb2_queue_free(q, start, count);
+ dprintk(q, 2, "buffers deleted\n");
+
+unlock:
+ mutex_unlock(&q->mmap_lock);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(vb2_core_delete_bufs);
+
/*
* vb2_start_streaming() - Attempt to start streaming.
* @q: videobuf2 queue
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 3d2affb00d19..98f2c1433678 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -696,6 +696,8 @@ static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
if (q->supports_requests)
*caps |= V4L2_BUF_CAP_SUPPORTS_REQUESTS;
#endif
+ if (q->supports_delete_bufs)
+ *caps |= V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS;
}
static void validate_memory_flags(struct vb2_queue *q,
@@ -753,6 +755,12 @@ int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
}
EXPORT_SYMBOL_GPL(vb2_prepare_buf);
+int vb2_delete_bufs(struct vb2_queue *q, struct v4l2_delete_buffers *d)
+{
+ return vb2_core_delete_bufs(q, d->index, d->count);
+}
+EXPORT_SYMBOL_GPL(vb2_delete_bufs);
+
int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
{
unsigned requested_planes = 1;
@@ -1016,6 +1024,18 @@ EXPORT_SYMBOL_GPL(vb2_poll);
/* vb2 ioctl helpers */
+int vb2_ioctl_delete_bufs(struct file *file, void *priv,
+ struct v4l2_delete_buffers *p)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ if (vb2_queue_is_busy(vdev->queue, file))
+ return -EBUSY;
+
+ return vb2_delete_bufs(vdev->queue, p);
+}
+EXPORT_SYMBOL_GPL(vb2_ioctl_delete_bufs);
+
int vb2_ioctl_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *p)
{
diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index f81279492682..215654fd6581 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -720,6 +720,7 @@ static void determine_valid_ioctls(struct video_device *vdev)
SET_VALID_IOCTL(ops, VIDIOC_PREPARE_BUF, vidioc_prepare_buf);
SET_VALID_IOCTL(ops, VIDIOC_STREAMON, vidioc_streamon);
SET_VALID_IOCTL(ops, VIDIOC_STREAMOFF, vidioc_streamoff);
+ SET_VALID_IOCTL(ops, VIDIOC_DELETE_BUFS, vidioc_delete_bufs);
}
if (is_vid || is_vbi || is_meta) {
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 700db197e371..4514fa42c31f 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -489,6 +489,13 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
v4l_print_format(&p->format, write_only);
}
+static void v4l_print_delete_buffers(const void *arg, bool write_only)
+{
+ const struct v4l2_delete_buffers *p = arg;
+
+ pr_cont("index=%u, count=%u\n", p->index, p->count);
+}
+
static void v4l_print_streamparm(const void *arg, bool write_only)
{
const struct v4l2_streamparm *p = arg;
@@ -2160,6 +2167,15 @@ static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
return ret ? ret : ops->vidioc_prepare_buf(file, fh, b);
}
+static int v4l_delete_bufs(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_delete_buffers *delete = arg;
+ int ret = check_fmt(file, delete->type);
+
+ return ret ? ret : ops->vidioc_delete_bufs(file, fh, delete);
+}
+
static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
@@ -2909,6 +2925,7 @@ static const struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0),
IOCTL_INFO(VIDIOC_DBG_G_CHIP_INFO, v4l_dbg_g_chip_info, v4l_print_dbg_chip_info, INFO_FL_CLEAR(v4l2_dbg_chip_info, match)),
IOCTL_INFO(VIDIOC_QUERY_EXT_CTRL, v4l_query_ext_ctrl, v4l_print_query_ext_ctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_query_ext_ctrl, id)),
+ IOCTL_INFO(VIDIOC_DELETE_BUFS, v4l_delete_bufs, v4l_print_delete_buffers, INFO_FL_PRIO | INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_delete_buffers, type)),
};
#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index edb733f21604..55afbde54211 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -163,6 +163,8 @@ struct v4l2_fh;
* :ref:`VIDIOC_CREATE_BUFS <vidioc_create_bufs>` ioctl
* @vidioc_prepare_buf: pointer to the function that implements
* :ref:`VIDIOC_PREPARE_BUF <vidioc_prepare_buf>` ioctl
+ * @vidioc_delete_bufs: pointer to the function that implements
+ * :ref:`VIDIOC_DELETE_BUFS <vidioc_delete_bufs>` ioctl
* @vidioc_overlay: pointer to the function that implements
* :ref:`VIDIOC_OVERLAY <vidioc_overlay>` ioctl
* @vidioc_g_fbuf: pointer to the function that implements
@@ -422,6 +424,8 @@ struct v4l2_ioctl_ops {
struct v4l2_create_buffers *b);
int (*vidioc_prepare_buf)(struct file *file, void *fh,
struct v4l2_buffer *b);
+ int (*vidioc_delete_bufs)(struct file *file, void *fh,
+ struct v4l2_delete_buffers *d);
int (*vidioc_overlay)(struct file *file, void *fh, unsigned int i);
int (*vidioc_g_fbuf)(struct file *file, void *fh,
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index fc1fcd8faa64..29c34947098e 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -507,6 +507,7 @@ struct vb2_buf_ops {
* @supports_requests: this queue supports the Request API.
* @requires_requests: this queue requires the Request API. If this is set to 1,
* then supports_requests must be set to 1 as well.
+ * @supports_delete_bufs: this queue supports DELETE_BUFS ioctl.
* @uses_qbuf: qbuf was used directly for this queue. Set to 1 the first
* time this is called. Set to 0 when the queue is canceled.
* If this is 1, then you cannot queue buffers from a request.
@@ -595,6 +596,7 @@ struct vb2_queue {
unsigned int quirk_poll_must_check_waiting_for_buffers:1;
unsigned int supports_requests:1;
unsigned int requires_requests:1;
+ unsigned int supports_delete_bufs:1;
unsigned int uses_qbuf:1;
unsigned int uses_requests:1;
unsigned int allow_cache_hints:1;
@@ -846,6 +848,16 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
*/
int vb2_core_prepare_buf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb);
+/**
+ * vb2_core_delete_bufs() -
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ * @start: first index of the range of buffers to delete.
+ * @count: number of buffers to delete.
+ *
+ * Return: returns zero on success; an error code otherwise.
+ */
+int vb2_core_delete_bufs(struct vb2_queue *q, unsigned int start, unsigned int count);
+
/**
* vb2_core_qbuf() - Queue a buffer from userspace
*
diff --git a/include/media/videobuf2-v4l2.h b/include/media/videobuf2-v4l2.h
index 5a845887850b..79cea8459f52 100644
--- a/include/media/videobuf2-v4l2.h
+++ b/include/media/videobuf2-v4l2.h
@@ -118,6 +118,17 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create);
*/
int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
struct v4l2_buffer *b);
+/**
+ * vb2_delete_bufs() - Delete buffers from the queue
+ *
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ * @d: delete parameter, passed from userspace to
+ * &v4l2_ioctl_ops->vidioc_delete_bufs handler in driver
+ *
+ * The return values from this function are intended to be directly returned
+ * from &v4l2_ioctl_ops->vidioc_delete_bufs handler in driver.
+ */
+int vb2_delete_bufs(struct vb2_queue *q, struct v4l2_delete_buffers *d);
/**
* vb2_qbuf() - Queue a buffer from userspace
@@ -334,6 +345,8 @@ int vb2_ioctl_streamon(struct file *file, void *priv, enum v4l2_buf_type i);
int vb2_ioctl_streamoff(struct file *file, void *priv, enum v4l2_buf_type i);
int vb2_ioctl_expbuf(struct file *file, void *priv,
struct v4l2_exportbuffer *p);
+int vb2_ioctl_delete_bufs(struct file *file, void *priv,
+ struct v4l2_delete_buffers *p);
/* struct v4l2_file_operations helpers */
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index b0dbb1be728c..49c50e31c2b3 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1035,6 +1035,7 @@ struct v4l2_requestbuffers {
#define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
#define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
+#define V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS (1 << 8)
/**
* struct v4l2_plane - plane info for multi-planar buffers
@@ -2621,6 +2622,20 @@ struct v4l2_create_buffers {
__u32 reserved[5];
};
+/**
+ * struct v4l2_delete_buffers - VIDIOC_DELETE_BUFS argument
+ * @index: the first buffer to be deleted
+ * @count: number of buffers to delete
+ * @type: enum v4l2_buf_type
+ * @reserved: future extensions
+ */
+struct v4l2_delete_buffers {
+ __u32 index;
+ __u32 count;
+ __u32 type;
+ __u32 reserved[13];
+};
+
/*
* I O C T L C O D E S F O R V I D E O D E V I C E S
*
@@ -2720,6 +2735,8 @@ struct v4l2_create_buffers {
#define VIDIOC_DBG_G_CHIP_INFO _IOWR('V', 102, struct v4l2_dbg_chip_info)
#define VIDIOC_QUERY_EXT_CTRL _IOWR('V', 103, struct v4l2_query_ext_ctrl)
+#define VIDIOC_DELETE_BUFS _IOWR('V', 104, struct v4l2_delete_buffers)
+
/* Reminder: when adding new ioctls please add support for them to
drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 51/53] media: v4l2: Add DELETE_BUFS ioctl
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
VIDIOC_DELETE_BUFS ioctl allows to delete buffers from a queue.
The number of buffers to delete in given by count field of
struct v4l2_delete_buffers and the range start at the index
specified in the same structure.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
version 8:
- Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS capabilities flag.
- Fix warnings in documentation.
.../userspace-api/media/v4l/user-func.rst | 1 +
.../media/v4l/vidioc-delete-bufs.rst | 80 +++++++++++++++++++
.../media/v4l/vidioc-reqbufs.rst | 1 +
.../media/common/videobuf2/videobuf2-core.c | 30 +++++++
.../media/common/videobuf2/videobuf2-v4l2.c | 20 +++++
drivers/media/v4l2-core/v4l2-dev.c | 1 +
drivers/media/v4l2-core/v4l2-ioctl.c | 17 ++++
include/media/v4l2-ioctl.h | 4 +
include/media/videobuf2-core.h | 12 +++
include/media/videobuf2-v4l2.h | 13 +++
include/uapi/linux/videodev2.h | 17 ++++
11 files changed, 196 insertions(+)
create mode 100644 Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
diff --git a/Documentation/userspace-api/media/v4l/user-func.rst b/Documentation/userspace-api/media/v4l/user-func.rst
index 15ff0bf7bbe6..3fd567695477 100644
--- a/Documentation/userspace-api/media/v4l/user-func.rst
+++ b/Documentation/userspace-api/media/v4l/user-func.rst
@@ -17,6 +17,7 @@ Function Reference
vidioc-dbg-g-chip-info
vidioc-dbg-g-register
vidioc-decoder-cmd
+ vidioc-delete-bufs
vidioc-dqevent
vidioc-dv-timings-cap
vidioc-encoder-cmd
diff --git a/Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
new file mode 100644
index 000000000000..4791df1395d6
--- /dev/null
+++ b/Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
@@ -0,0 +1,80 @@
+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: V4L
+
+.. _VIDIOC_DELETE_BUFS:
+
+************************
+ioctl VIDIOC_DELETE_BUFS
+************************
+
+Name
+====
+
+VIDIOC_DELETE_BUFS - Deletes buffers from a queue
+Drivers using this feature must expose the ``V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS``
+capability on the queue :c:func:`VIDIOC_REQBUFS` or :c:func:`VIDIOC_CREATE_BUFS`
+are invoked.
+
+Synopsis
+========
+
+.. c:macro:: VIDIOC_DELETE_BUFs
+
+``int ioctl(int fd, VIDIOC_DELETE_BUFs, struct v4l2_delete_buffers *argp)``
+
+Arguments
+=========
+
+``fd``
+ File descriptor returned by :c:func:`open()`.
+
+``argp``
+ Pointer to struct :c:type:`v4l2_delete_buffers`.
+
+Description
+===========
+
+Applications can optionally call the :ref:`VIDIOC_DELETE_BUFS` ioctl to
+delete buffers from a queue.
+
+.. c:type:: v4l2_delete_buffers
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.5cm}|
+
+.. flat-table:: struct v4l2_delete_buffers
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u32
+ - ``index``
+ - The starting buffer index to delete.
+ * - __u32
+ - ``count``
+ - The number of buffers to be deleted with indices 'index' until 'index + count - 1'.
+ All buffers in this range must be valid and in DEQUEUED state.
+ In error case errno is set to ``EINVAL`` error code and index returns the index of
+ the invalid buffer.
+ If count and index are set to 0 :ref:`VIDIOC_DELETE_BUFS` will return 0.
+ * - __u32
+ - ``type``
+ - Type of the stream or buffers, this is the same as the struct
+ :c:type:`v4l2_format` ``type`` field. See
+ :c:type:`v4l2_buf_type` for valid values.
+ * - __u32
+ - ``reserved``\ [13]
+ - A place holder for future extensions. Drivers and applications
+ must set the array to zero.
+
+Return Value
+============
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+EBUSY
+ File I/O is in progress.
+
+EINVAL
+ The buffer ``index`` doesn't exist in the queue.
diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
index 0395187e1a5a..bcdf72dcbc22 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
@@ -121,6 +121,7 @@ aborting or finishing any DMA in progress, an implicit
.. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
.. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
+.. _V4L2-BUF-CAP-SUPPORTS-DELETE-BUFS:
.. raw:: latex
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 3bf455f03461..98e72acab408 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -1664,6 +1664,36 @@ int vb2_core_prepare_buf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb)
}
EXPORT_SYMBOL_GPL(vb2_core_prepare_buf);
+int vb2_core_delete_bufs(struct vb2_queue *q, unsigned int start, unsigned int count)
+{
+ unsigned int i, ret = 0;
+
+ if (start == 0 && count == 0)
+ return 0;
+
+ mutex_lock(&q->mmap_lock);
+
+ for (i = start; i < start + count && i < q->max_num_buffers; i++) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
+
+ if (!vb) {
+ ret = -EINVAL;
+ goto unlock;
+ }
+ if (vb->state != VB2_BUF_STATE_DEQUEUED) {
+ ret = -EINVAL;
+ goto unlock;
+ }
+ }
+ __vb2_queue_free(q, start, count);
+ dprintk(q, 2, "buffers deleted\n");
+
+unlock:
+ mutex_unlock(&q->mmap_lock);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(vb2_core_delete_bufs);
+
/*
* vb2_start_streaming() - Attempt to start streaming.
* @q: videobuf2 queue
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 3d2affb00d19..98f2c1433678 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -696,6 +696,8 @@ static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
if (q->supports_requests)
*caps |= V4L2_BUF_CAP_SUPPORTS_REQUESTS;
#endif
+ if (q->supports_delete_bufs)
+ *caps |= V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS;
}
static void validate_memory_flags(struct vb2_queue *q,
@@ -753,6 +755,12 @@ int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
}
EXPORT_SYMBOL_GPL(vb2_prepare_buf);
+int vb2_delete_bufs(struct vb2_queue *q, struct v4l2_delete_buffers *d)
+{
+ return vb2_core_delete_bufs(q, d->index, d->count);
+}
+EXPORT_SYMBOL_GPL(vb2_delete_bufs);
+
int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
{
unsigned requested_planes = 1;
@@ -1016,6 +1024,18 @@ EXPORT_SYMBOL_GPL(vb2_poll);
/* vb2 ioctl helpers */
+int vb2_ioctl_delete_bufs(struct file *file, void *priv,
+ struct v4l2_delete_buffers *p)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ if (vb2_queue_is_busy(vdev->queue, file))
+ return -EBUSY;
+
+ return vb2_delete_bufs(vdev->queue, p);
+}
+EXPORT_SYMBOL_GPL(vb2_ioctl_delete_bufs);
+
int vb2_ioctl_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *p)
{
diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index f81279492682..215654fd6581 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -720,6 +720,7 @@ static void determine_valid_ioctls(struct video_device *vdev)
SET_VALID_IOCTL(ops, VIDIOC_PREPARE_BUF, vidioc_prepare_buf);
SET_VALID_IOCTL(ops, VIDIOC_STREAMON, vidioc_streamon);
SET_VALID_IOCTL(ops, VIDIOC_STREAMOFF, vidioc_streamoff);
+ SET_VALID_IOCTL(ops, VIDIOC_DELETE_BUFS, vidioc_delete_bufs);
}
if (is_vid || is_vbi || is_meta) {
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 700db197e371..4514fa42c31f 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -489,6 +489,13 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
v4l_print_format(&p->format, write_only);
}
+static void v4l_print_delete_buffers(const void *arg, bool write_only)
+{
+ const struct v4l2_delete_buffers *p = arg;
+
+ pr_cont("index=%u, count=%u\n", p->index, p->count);
+}
+
static void v4l_print_streamparm(const void *arg, bool write_only)
{
const struct v4l2_streamparm *p = arg;
@@ -2160,6 +2167,15 @@ static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
return ret ? ret : ops->vidioc_prepare_buf(file, fh, b);
}
+static int v4l_delete_bufs(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_delete_buffers *delete = arg;
+ int ret = check_fmt(file, delete->type);
+
+ return ret ? ret : ops->vidioc_delete_bufs(file, fh, delete);
+}
+
static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
@@ -2909,6 +2925,7 @@ static const struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0),
IOCTL_INFO(VIDIOC_DBG_G_CHIP_INFO, v4l_dbg_g_chip_info, v4l_print_dbg_chip_info, INFO_FL_CLEAR(v4l2_dbg_chip_info, match)),
IOCTL_INFO(VIDIOC_QUERY_EXT_CTRL, v4l_query_ext_ctrl, v4l_print_query_ext_ctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_query_ext_ctrl, id)),
+ IOCTL_INFO(VIDIOC_DELETE_BUFS, v4l_delete_bufs, v4l_print_delete_buffers, INFO_FL_PRIO | INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_delete_buffers, type)),
};
#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index edb733f21604..55afbde54211 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -163,6 +163,8 @@ struct v4l2_fh;
* :ref:`VIDIOC_CREATE_BUFS <vidioc_create_bufs>` ioctl
* @vidioc_prepare_buf: pointer to the function that implements
* :ref:`VIDIOC_PREPARE_BUF <vidioc_prepare_buf>` ioctl
+ * @vidioc_delete_bufs: pointer to the function that implements
+ * :ref:`VIDIOC_DELETE_BUFS <vidioc_delete_bufs>` ioctl
* @vidioc_overlay: pointer to the function that implements
* :ref:`VIDIOC_OVERLAY <vidioc_overlay>` ioctl
* @vidioc_g_fbuf: pointer to the function that implements
@@ -422,6 +424,8 @@ struct v4l2_ioctl_ops {
struct v4l2_create_buffers *b);
int (*vidioc_prepare_buf)(struct file *file, void *fh,
struct v4l2_buffer *b);
+ int (*vidioc_delete_bufs)(struct file *file, void *fh,
+ struct v4l2_delete_buffers *d);
int (*vidioc_overlay)(struct file *file, void *fh, unsigned int i);
int (*vidioc_g_fbuf)(struct file *file, void *fh,
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index fc1fcd8faa64..29c34947098e 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -507,6 +507,7 @@ struct vb2_buf_ops {
* @supports_requests: this queue supports the Request API.
* @requires_requests: this queue requires the Request API. If this is set to 1,
* then supports_requests must be set to 1 as well.
+ * @supports_delete_bufs: this queue supports DELETE_BUFS ioctl.
* @uses_qbuf: qbuf was used directly for this queue. Set to 1 the first
* time this is called. Set to 0 when the queue is canceled.
* If this is 1, then you cannot queue buffers from a request.
@@ -595,6 +596,7 @@ struct vb2_queue {
unsigned int quirk_poll_must_check_waiting_for_buffers:1;
unsigned int supports_requests:1;
unsigned int requires_requests:1;
+ unsigned int supports_delete_bufs:1;
unsigned int uses_qbuf:1;
unsigned int uses_requests:1;
unsigned int allow_cache_hints:1;
@@ -846,6 +848,16 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
*/
int vb2_core_prepare_buf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb);
+/**
+ * vb2_core_delete_bufs() -
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ * @start: first index of the range of buffers to delete.
+ * @count: number of buffers to delete.
+ *
+ * Return: returns zero on success; an error code otherwise.
+ */
+int vb2_core_delete_bufs(struct vb2_queue *q, unsigned int start, unsigned int count);
+
/**
* vb2_core_qbuf() - Queue a buffer from userspace
*
diff --git a/include/media/videobuf2-v4l2.h b/include/media/videobuf2-v4l2.h
index 5a845887850b..79cea8459f52 100644
--- a/include/media/videobuf2-v4l2.h
+++ b/include/media/videobuf2-v4l2.h
@@ -118,6 +118,17 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create);
*/
int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
struct v4l2_buffer *b);
+/**
+ * vb2_delete_bufs() - Delete buffers from the queue
+ *
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ * @d: delete parameter, passed from userspace to
+ * &v4l2_ioctl_ops->vidioc_delete_bufs handler in driver
+ *
+ * The return values from this function are intended to be directly returned
+ * from &v4l2_ioctl_ops->vidioc_delete_bufs handler in driver.
+ */
+int vb2_delete_bufs(struct vb2_queue *q, struct v4l2_delete_buffers *d);
/**
* vb2_qbuf() - Queue a buffer from userspace
@@ -334,6 +345,8 @@ int vb2_ioctl_streamon(struct file *file, void *priv, enum v4l2_buf_type i);
int vb2_ioctl_streamoff(struct file *file, void *priv, enum v4l2_buf_type i);
int vb2_ioctl_expbuf(struct file *file, void *priv,
struct v4l2_exportbuffer *p);
+int vb2_ioctl_delete_bufs(struct file *file, void *priv,
+ struct v4l2_delete_buffers *p);
/* struct v4l2_file_operations helpers */
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index b0dbb1be728c..49c50e31c2b3 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1035,6 +1035,7 @@ struct v4l2_requestbuffers {
#define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
#define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
+#define V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS (1 << 8)
/**
* struct v4l2_plane - plane info for multi-planar buffers
@@ -2621,6 +2622,20 @@ struct v4l2_create_buffers {
__u32 reserved[5];
};
+/**
+ * struct v4l2_delete_buffers - VIDIOC_DELETE_BUFS argument
+ * @index: the first buffer to be deleted
+ * @count: number of buffers to delete
+ * @type: enum v4l2_buf_type
+ * @reserved: future extensions
+ */
+struct v4l2_delete_buffers {
+ __u32 index;
+ __u32 count;
+ __u32 type;
+ __u32 reserved[13];
+};
+
/*
* I O C T L C O D E S F O R V I D E O D E V I C E S
*
@@ -2720,6 +2735,8 @@ struct v4l2_create_buffers {
#define VIDIOC_DBG_G_CHIP_INFO _IOWR('V', 102, struct v4l2_dbg_chip_info)
#define VIDIOC_QUERY_EXT_CTRL _IOWR('V', 103, struct v4l2_query_ext_ctrl)
+#define VIDIOC_DELETE_BUFS _IOWR('V', 104, struct v4l2_delete_buffers)
+
/* Reminder: when adding new ioctls please add support for them to
drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 51/53] media: v4l2: Add DELETE_BUFS ioctl
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
VIDIOC_DELETE_BUFS ioctl allows to delete buffers from a queue.
The number of buffers to delete in given by count field of
struct v4l2_delete_buffers and the range start at the index
specified in the same structure.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
version 8:
- Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS capabilities flag.
- Fix warnings in documentation.
.../userspace-api/media/v4l/user-func.rst | 1 +
.../media/v4l/vidioc-delete-bufs.rst | 80 +++++++++++++++++++
.../media/v4l/vidioc-reqbufs.rst | 1 +
.../media/common/videobuf2/videobuf2-core.c | 30 +++++++
.../media/common/videobuf2/videobuf2-v4l2.c | 20 +++++
drivers/media/v4l2-core/v4l2-dev.c | 1 +
drivers/media/v4l2-core/v4l2-ioctl.c | 17 ++++
include/media/v4l2-ioctl.h | 4 +
include/media/videobuf2-core.h | 12 +++
include/media/videobuf2-v4l2.h | 13 +++
include/uapi/linux/videodev2.h | 17 ++++
11 files changed, 196 insertions(+)
create mode 100644 Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
diff --git a/Documentation/userspace-api/media/v4l/user-func.rst b/Documentation/userspace-api/media/v4l/user-func.rst
index 15ff0bf7bbe6..3fd567695477 100644
--- a/Documentation/userspace-api/media/v4l/user-func.rst
+++ b/Documentation/userspace-api/media/v4l/user-func.rst
@@ -17,6 +17,7 @@ Function Reference
vidioc-dbg-g-chip-info
vidioc-dbg-g-register
vidioc-decoder-cmd
+ vidioc-delete-bufs
vidioc-dqevent
vidioc-dv-timings-cap
vidioc-encoder-cmd
diff --git a/Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
new file mode 100644
index 000000000000..4791df1395d6
--- /dev/null
+++ b/Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
@@ -0,0 +1,80 @@
+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: V4L
+
+.. _VIDIOC_DELETE_BUFS:
+
+************************
+ioctl VIDIOC_DELETE_BUFS
+************************
+
+Name
+====
+
+VIDIOC_DELETE_BUFS - Deletes buffers from a queue
+Drivers using this feature must expose the ``V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS``
+capability on the queue :c:func:`VIDIOC_REQBUFS` or :c:func:`VIDIOC_CREATE_BUFS`
+are invoked.
+
+Synopsis
+========
+
+.. c:macro:: VIDIOC_DELETE_BUFs
+
+``int ioctl(int fd, VIDIOC_DELETE_BUFs, struct v4l2_delete_buffers *argp)``
+
+Arguments
+=========
+
+``fd``
+ File descriptor returned by :c:func:`open()`.
+
+``argp``
+ Pointer to struct :c:type:`v4l2_delete_buffers`.
+
+Description
+===========
+
+Applications can optionally call the :ref:`VIDIOC_DELETE_BUFS` ioctl to
+delete buffers from a queue.
+
+.. c:type:: v4l2_delete_buffers
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.5cm}|
+
+.. flat-table:: struct v4l2_delete_buffers
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u32
+ - ``index``
+ - The starting buffer index to delete.
+ * - __u32
+ - ``count``
+ - The number of buffers to be deleted with indices 'index' until 'index + count - 1'.
+ All buffers in this range must be valid and in DEQUEUED state.
+ In error case errno is set to ``EINVAL`` error code and index returns the index of
+ the invalid buffer.
+ If count and index are set to 0 :ref:`VIDIOC_DELETE_BUFS` will return 0.
+ * - __u32
+ - ``type``
+ - Type of the stream or buffers, this is the same as the struct
+ :c:type:`v4l2_format` ``type`` field. See
+ :c:type:`v4l2_buf_type` for valid values.
+ * - __u32
+ - ``reserved``\ [13]
+ - A place holder for future extensions. Drivers and applications
+ must set the array to zero.
+
+Return Value
+============
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+EBUSY
+ File I/O is in progress.
+
+EINVAL
+ The buffer ``index`` doesn't exist in the queue.
diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
index 0395187e1a5a..bcdf72dcbc22 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
@@ -121,6 +121,7 @@ aborting or finishing any DMA in progress, an implicit
.. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
.. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
+.. _V4L2-BUF-CAP-SUPPORTS-DELETE-BUFS:
.. raw:: latex
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 3bf455f03461..98e72acab408 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -1664,6 +1664,36 @@ int vb2_core_prepare_buf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb)
}
EXPORT_SYMBOL_GPL(vb2_core_prepare_buf);
+int vb2_core_delete_bufs(struct vb2_queue *q, unsigned int start, unsigned int count)
+{
+ unsigned int i, ret = 0;
+
+ if (start == 0 && count == 0)
+ return 0;
+
+ mutex_lock(&q->mmap_lock);
+
+ for (i = start; i < start + count && i < q->max_num_buffers; i++) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
+
+ if (!vb) {
+ ret = -EINVAL;
+ goto unlock;
+ }
+ if (vb->state != VB2_BUF_STATE_DEQUEUED) {
+ ret = -EINVAL;
+ goto unlock;
+ }
+ }
+ __vb2_queue_free(q, start, count);
+ dprintk(q, 2, "buffers deleted\n");
+
+unlock:
+ mutex_unlock(&q->mmap_lock);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(vb2_core_delete_bufs);
+
/*
* vb2_start_streaming() - Attempt to start streaming.
* @q: videobuf2 queue
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 3d2affb00d19..98f2c1433678 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -696,6 +696,8 @@ static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
if (q->supports_requests)
*caps |= V4L2_BUF_CAP_SUPPORTS_REQUESTS;
#endif
+ if (q->supports_delete_bufs)
+ *caps |= V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS;
}
static void validate_memory_flags(struct vb2_queue *q,
@@ -753,6 +755,12 @@ int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
}
EXPORT_SYMBOL_GPL(vb2_prepare_buf);
+int vb2_delete_bufs(struct vb2_queue *q, struct v4l2_delete_buffers *d)
+{
+ return vb2_core_delete_bufs(q, d->index, d->count);
+}
+EXPORT_SYMBOL_GPL(vb2_delete_bufs);
+
int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
{
unsigned requested_planes = 1;
@@ -1016,6 +1024,18 @@ EXPORT_SYMBOL_GPL(vb2_poll);
/* vb2 ioctl helpers */
+int vb2_ioctl_delete_bufs(struct file *file, void *priv,
+ struct v4l2_delete_buffers *p)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ if (vb2_queue_is_busy(vdev->queue, file))
+ return -EBUSY;
+
+ return vb2_delete_bufs(vdev->queue, p);
+}
+EXPORT_SYMBOL_GPL(vb2_ioctl_delete_bufs);
+
int vb2_ioctl_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *p)
{
diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index f81279492682..215654fd6581 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -720,6 +720,7 @@ static void determine_valid_ioctls(struct video_device *vdev)
SET_VALID_IOCTL(ops, VIDIOC_PREPARE_BUF, vidioc_prepare_buf);
SET_VALID_IOCTL(ops, VIDIOC_STREAMON, vidioc_streamon);
SET_VALID_IOCTL(ops, VIDIOC_STREAMOFF, vidioc_streamoff);
+ SET_VALID_IOCTL(ops, VIDIOC_DELETE_BUFS, vidioc_delete_bufs);
}
if (is_vid || is_vbi || is_meta) {
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 700db197e371..4514fa42c31f 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -489,6 +489,13 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
v4l_print_format(&p->format, write_only);
}
+static void v4l_print_delete_buffers(const void *arg, bool write_only)
+{
+ const struct v4l2_delete_buffers *p = arg;
+
+ pr_cont("index=%u, count=%u\n", p->index, p->count);
+}
+
static void v4l_print_streamparm(const void *arg, bool write_only)
{
const struct v4l2_streamparm *p = arg;
@@ -2160,6 +2167,15 @@ static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
return ret ? ret : ops->vidioc_prepare_buf(file, fh, b);
}
+static int v4l_delete_bufs(const struct v4l2_ioctl_ops *ops,
+ struct file *file, void *fh, void *arg)
+{
+ struct v4l2_delete_buffers *delete = arg;
+ int ret = check_fmt(file, delete->type);
+
+ return ret ? ret : ops->vidioc_delete_bufs(file, fh, delete);
+}
+
static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
@@ -2909,6 +2925,7 @@ static const struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0),
IOCTL_INFO(VIDIOC_DBG_G_CHIP_INFO, v4l_dbg_g_chip_info, v4l_print_dbg_chip_info, INFO_FL_CLEAR(v4l2_dbg_chip_info, match)),
IOCTL_INFO(VIDIOC_QUERY_EXT_CTRL, v4l_query_ext_ctrl, v4l_print_query_ext_ctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_query_ext_ctrl, id)),
+ IOCTL_INFO(VIDIOC_DELETE_BUFS, v4l_delete_bufs, v4l_print_delete_buffers, INFO_FL_PRIO | INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_delete_buffers, type)),
};
#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index edb733f21604..55afbde54211 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -163,6 +163,8 @@ struct v4l2_fh;
* :ref:`VIDIOC_CREATE_BUFS <vidioc_create_bufs>` ioctl
* @vidioc_prepare_buf: pointer to the function that implements
* :ref:`VIDIOC_PREPARE_BUF <vidioc_prepare_buf>` ioctl
+ * @vidioc_delete_bufs: pointer to the function that implements
+ * :ref:`VIDIOC_DELETE_BUFS <vidioc_delete_bufs>` ioctl
* @vidioc_overlay: pointer to the function that implements
* :ref:`VIDIOC_OVERLAY <vidioc_overlay>` ioctl
* @vidioc_g_fbuf: pointer to the function that implements
@@ -422,6 +424,8 @@ struct v4l2_ioctl_ops {
struct v4l2_create_buffers *b);
int (*vidioc_prepare_buf)(struct file *file, void *fh,
struct v4l2_buffer *b);
+ int (*vidioc_delete_bufs)(struct file *file, void *fh,
+ struct v4l2_delete_buffers *d);
int (*vidioc_overlay)(struct file *file, void *fh, unsigned int i);
int (*vidioc_g_fbuf)(struct file *file, void *fh,
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index fc1fcd8faa64..29c34947098e 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -507,6 +507,7 @@ struct vb2_buf_ops {
* @supports_requests: this queue supports the Request API.
* @requires_requests: this queue requires the Request API. If this is set to 1,
* then supports_requests must be set to 1 as well.
+ * @supports_delete_bufs: this queue supports DELETE_BUFS ioctl.
* @uses_qbuf: qbuf was used directly for this queue. Set to 1 the first
* time this is called. Set to 0 when the queue is canceled.
* If this is 1, then you cannot queue buffers from a request.
@@ -595,6 +596,7 @@ struct vb2_queue {
unsigned int quirk_poll_must_check_waiting_for_buffers:1;
unsigned int supports_requests:1;
unsigned int requires_requests:1;
+ unsigned int supports_delete_bufs:1;
unsigned int uses_qbuf:1;
unsigned int uses_requests:1;
unsigned int allow_cache_hints:1;
@@ -846,6 +848,16 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
*/
int vb2_core_prepare_buf(struct vb2_queue *q, struct vb2_buffer *vb, void *pb);
+/**
+ * vb2_core_delete_bufs() -
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ * @start: first index of the range of buffers to delete.
+ * @count: number of buffers to delete.
+ *
+ * Return: returns zero on success; an error code otherwise.
+ */
+int vb2_core_delete_bufs(struct vb2_queue *q, unsigned int start, unsigned int count);
+
/**
* vb2_core_qbuf() - Queue a buffer from userspace
*
diff --git a/include/media/videobuf2-v4l2.h b/include/media/videobuf2-v4l2.h
index 5a845887850b..79cea8459f52 100644
--- a/include/media/videobuf2-v4l2.h
+++ b/include/media/videobuf2-v4l2.h
@@ -118,6 +118,17 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create);
*/
int vb2_prepare_buf(struct vb2_queue *q, struct media_device *mdev,
struct v4l2_buffer *b);
+/**
+ * vb2_delete_bufs() - Delete buffers from the queue
+ *
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ * @d: delete parameter, passed from userspace to
+ * &v4l2_ioctl_ops->vidioc_delete_bufs handler in driver
+ *
+ * The return values from this function are intended to be directly returned
+ * from &v4l2_ioctl_ops->vidioc_delete_bufs handler in driver.
+ */
+int vb2_delete_bufs(struct vb2_queue *q, struct v4l2_delete_buffers *d);
/**
* vb2_qbuf() - Queue a buffer from userspace
@@ -334,6 +345,8 @@ int vb2_ioctl_streamon(struct file *file, void *priv, enum v4l2_buf_type i);
int vb2_ioctl_streamoff(struct file *file, void *priv, enum v4l2_buf_type i);
int vb2_ioctl_expbuf(struct file *file, void *priv,
struct v4l2_exportbuffer *p);
+int vb2_ioctl_delete_bufs(struct file *file, void *priv,
+ struct v4l2_delete_buffers *p);
/* struct v4l2_file_operations helpers */
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index b0dbb1be728c..49c50e31c2b3 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1035,6 +1035,7 @@ struct v4l2_requestbuffers {
#define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
#define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
+#define V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS (1 << 8)
/**
* struct v4l2_plane - plane info for multi-planar buffers
@@ -2621,6 +2622,20 @@ struct v4l2_create_buffers {
__u32 reserved[5];
};
+/**
+ * struct v4l2_delete_buffers - VIDIOC_DELETE_BUFS argument
+ * @index: the first buffer to be deleted
+ * @count: number of buffers to delete
+ * @type: enum v4l2_buf_type
+ * @reserved: future extensions
+ */
+struct v4l2_delete_buffers {
+ __u32 index;
+ __u32 count;
+ __u32 type;
+ __u32 reserved[13];
+};
+
/*
* I O C T L C O D E S F O R V I D E O D E V I C E S
*
@@ -2720,6 +2735,8 @@ struct v4l2_create_buffers {
#define VIDIOC_DBG_G_CHIP_INFO _IOWR('V', 102, struct v4l2_dbg_chip_info)
#define VIDIOC_QUERY_EXT_CTRL _IOWR('V', 103, struct v4l2_query_ext_ctrl)
+#define VIDIOC_DELETE_BUFS _IOWR('V', 104, struct v4l2_delete_buffers)
+
/* Reminder: when adding new ioctls please add support for them to
drivers/media/v4l2-core/v4l2-compat-ioctl32.c as well! */
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 52/53] media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Create v4l2-mem2mem helpers for VIDIOC_DELETE_BUFS ioctl.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/platform/verisilicon/hantro_drv.c | 1 +
.../media/platform/verisilicon/hantro_v4l2.c | 1 +
drivers/media/test-drivers/vim2m.c | 2 ++
drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +++++++++++++++++++
include/media/v4l2-mem2mem.h | 12 +++++++++++
5 files changed, 36 insertions(+)
diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
index ad6b086f0526..1195a163d9e8 100644
--- a/drivers/media/platform/verisilicon/hantro_drv.c
+++ b/drivers/media/platform/verisilicon/hantro_drv.c
@@ -247,6 +247,7 @@ queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = &ctx->dev->vpu_mutex;
dst_vq->dev = ctx->dev->v4l2_dev.dev;
+ src_vq->supports_delete_bufs = true;
return vb2_queue_init(dst_vq);
}
diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index 27a1e77cca38..0fd1c2fc78c8 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -756,6 +756,7 @@ const struct v4l2_ioctl_ops hantro_ioctl_ops = {
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
+ .vidioc_delete_bufs = v4l2_m2m_ioctl_delete_bufs,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
diff --git a/drivers/media/test-drivers/vim2m.c b/drivers/media/test-drivers/vim2m.c
index 3e3b424b4860..17213ce42059 100644
--- a/drivers/media/test-drivers/vim2m.c
+++ b/drivers/media/test-drivers/vim2m.c
@@ -960,6 +960,7 @@ static const struct v4l2_ioctl_ops vim2m_ioctl_ops = {
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
+ .vidioc_delete_bufs = v4l2_m2m_ioctl_delete_bufs,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
@@ -1133,6 +1134,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq,
dst_vq->mem_ops = &vb2_vmalloc_memops;
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = &ctx->vb_mutex;
+ dst_vq->supports_delete_bufs = true;
return vb2_queue_init(dst_vq);
}
diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c
index 0cc30397fbad..d1d59943680f 100644
--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
+++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
@@ -831,6 +831,17 @@ int v4l2_m2m_prepare_buf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
}
EXPORT_SYMBOL_GPL(v4l2_m2m_prepare_buf);
+int v4l2_m2m_delete_bufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
+ struct v4l2_delete_buffers *d)
+{
+ struct vb2_queue *vq;
+
+ vq = v4l2_m2m_get_vq(m2m_ctx, d->type);
+
+ return vb2_delete_bufs(vq, d);
+}
+EXPORT_SYMBOL_GPL(v4l2_m2m_delete_bufs);
+
int v4l2_m2m_create_bufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
struct v4l2_create_buffers *create)
{
@@ -1377,6 +1388,15 @@ int v4l2_m2m_ioctl_create_bufs(struct file *file, void *priv,
}
EXPORT_SYMBOL_GPL(v4l2_m2m_ioctl_create_bufs);
+int v4l2_m2m_ioctl_delete_bufs(struct file *file, void *priv,
+ struct v4l2_delete_buffers *d)
+{
+ struct v4l2_fh *fh = file->private_data;
+
+ return v4l2_m2m_delete_bufs(file, fh->m2m_ctx, d);
+}
+EXPORT_SYMBOL_GPL(v4l2_m2m_ioctl_delete_bufs);
+
int v4l2_m2m_ioctl_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
diff --git a/include/media/v4l2-mem2mem.h b/include/media/v4l2-mem2mem.h
index d6c8eb2b5201..161f85c42dc8 100644
--- a/include/media/v4l2-mem2mem.h
+++ b/include/media/v4l2-mem2mem.h
@@ -381,6 +381,16 @@ int v4l2_m2m_dqbuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
int v4l2_m2m_prepare_buf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
struct v4l2_buffer *buf);
+/**
+ * v4l2_m2m_delete_bufs() - delete buffers from the queue
+ *
+ * @file: pointer to struct &file
+ * @m2m_ctx: m2m context assigned to the instance given by struct &v4l2_m2m_ctx
+ * @d: pointer to struct &v4l2_delete_buffers
+ */
+int v4l2_m2m_delete_bufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
+ struct v4l2_delete_buffers *d);
+
/**
* v4l2_m2m_create_bufs() - create a source or destination buffer, depending
* on the type
@@ -860,6 +870,8 @@ int v4l2_m2m_ioctl_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *rb);
int v4l2_m2m_ioctl_create_bufs(struct file *file, void *fh,
struct v4l2_create_buffers *create);
+int v4l2_m2m_ioctl_delete_bufs(struct file *file, void *priv,
+ struct v4l2_delete_buffers *d);
int v4l2_m2m_ioctl_querybuf(struct file *file, void *fh,
struct v4l2_buffer *buf);
int v4l2_m2m_ioctl_expbuf(struct file *file, void *fh,
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 52/53] media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Create v4l2-mem2mem helpers for VIDIOC_DELETE_BUFS ioctl.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/platform/verisilicon/hantro_drv.c | 1 +
.../media/platform/verisilicon/hantro_v4l2.c | 1 +
drivers/media/test-drivers/vim2m.c | 2 ++
drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +++++++++++++++++++
include/media/v4l2-mem2mem.h | 12 +++++++++++
5 files changed, 36 insertions(+)
diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
index ad6b086f0526..1195a163d9e8 100644
--- a/drivers/media/platform/verisilicon/hantro_drv.c
+++ b/drivers/media/platform/verisilicon/hantro_drv.c
@@ -247,6 +247,7 @@ queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = &ctx->dev->vpu_mutex;
dst_vq->dev = ctx->dev->v4l2_dev.dev;
+ src_vq->supports_delete_bufs = true;
return vb2_queue_init(dst_vq);
}
diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index 27a1e77cca38..0fd1c2fc78c8 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -756,6 +756,7 @@ const struct v4l2_ioctl_ops hantro_ioctl_ops = {
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
+ .vidioc_delete_bufs = v4l2_m2m_ioctl_delete_bufs,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
diff --git a/drivers/media/test-drivers/vim2m.c b/drivers/media/test-drivers/vim2m.c
index 3e3b424b4860..17213ce42059 100644
--- a/drivers/media/test-drivers/vim2m.c
+++ b/drivers/media/test-drivers/vim2m.c
@@ -960,6 +960,7 @@ static const struct v4l2_ioctl_ops vim2m_ioctl_ops = {
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
+ .vidioc_delete_bufs = v4l2_m2m_ioctl_delete_bufs,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
@@ -1133,6 +1134,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq,
dst_vq->mem_ops = &vb2_vmalloc_memops;
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = &ctx->vb_mutex;
+ dst_vq->supports_delete_bufs = true;
return vb2_queue_init(dst_vq);
}
diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c
index 0cc30397fbad..d1d59943680f 100644
--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
+++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
@@ -831,6 +831,17 @@ int v4l2_m2m_prepare_buf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
}
EXPORT_SYMBOL_GPL(v4l2_m2m_prepare_buf);
+int v4l2_m2m_delete_bufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
+ struct v4l2_delete_buffers *d)
+{
+ struct vb2_queue *vq;
+
+ vq = v4l2_m2m_get_vq(m2m_ctx, d->type);
+
+ return vb2_delete_bufs(vq, d);
+}
+EXPORT_SYMBOL_GPL(v4l2_m2m_delete_bufs);
+
int v4l2_m2m_create_bufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
struct v4l2_create_buffers *create)
{
@@ -1377,6 +1388,15 @@ int v4l2_m2m_ioctl_create_bufs(struct file *file, void *priv,
}
EXPORT_SYMBOL_GPL(v4l2_m2m_ioctl_create_bufs);
+int v4l2_m2m_ioctl_delete_bufs(struct file *file, void *priv,
+ struct v4l2_delete_buffers *d)
+{
+ struct v4l2_fh *fh = file->private_data;
+
+ return v4l2_m2m_delete_bufs(file, fh->m2m_ctx, d);
+}
+EXPORT_SYMBOL_GPL(v4l2_m2m_ioctl_delete_bufs);
+
int v4l2_m2m_ioctl_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
diff --git a/include/media/v4l2-mem2mem.h b/include/media/v4l2-mem2mem.h
index d6c8eb2b5201..161f85c42dc8 100644
--- a/include/media/v4l2-mem2mem.h
+++ b/include/media/v4l2-mem2mem.h
@@ -381,6 +381,16 @@ int v4l2_m2m_dqbuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
int v4l2_m2m_prepare_buf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
struct v4l2_buffer *buf);
+/**
+ * v4l2_m2m_delete_bufs() - delete buffers from the queue
+ *
+ * @file: pointer to struct &file
+ * @m2m_ctx: m2m context assigned to the instance given by struct &v4l2_m2m_ctx
+ * @d: pointer to struct &v4l2_delete_buffers
+ */
+int v4l2_m2m_delete_bufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
+ struct v4l2_delete_buffers *d);
+
/**
* v4l2_m2m_create_bufs() - create a source or destination buffer, depending
* on the type
@@ -860,6 +870,8 @@ int v4l2_m2m_ioctl_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *rb);
int v4l2_m2m_ioctl_create_bufs(struct file *file, void *fh,
struct v4l2_create_buffers *create);
+int v4l2_m2m_ioctl_delete_bufs(struct file *file, void *priv,
+ struct v4l2_delete_buffers *d);
int v4l2_m2m_ioctl_querybuf(struct file *file, void *fh,
struct v4l2_buffer *buf);
int v4l2_m2m_ioctl_expbuf(struct file *file, void *fh,
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 52/53] media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Create v4l2-mem2mem helpers for VIDIOC_DELETE_BUFS ioctl.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
.../media/platform/verisilicon/hantro_drv.c | 1 +
.../media/platform/verisilicon/hantro_v4l2.c | 1 +
drivers/media/test-drivers/vim2m.c | 2 ++
drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +++++++++++++++++++
include/media/v4l2-mem2mem.h | 12 +++++++++++
5 files changed, 36 insertions(+)
diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
index ad6b086f0526..1195a163d9e8 100644
--- a/drivers/media/platform/verisilicon/hantro_drv.c
+++ b/drivers/media/platform/verisilicon/hantro_drv.c
@@ -247,6 +247,7 @@ queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = &ctx->dev->vpu_mutex;
dst_vq->dev = ctx->dev->v4l2_dev.dev;
+ src_vq->supports_delete_bufs = true;
return vb2_queue_init(dst_vq);
}
diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index 27a1e77cca38..0fd1c2fc78c8 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -756,6 +756,7 @@ const struct v4l2_ioctl_ops hantro_ioctl_ops = {
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
+ .vidioc_delete_bufs = v4l2_m2m_ioctl_delete_bufs,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
diff --git a/drivers/media/test-drivers/vim2m.c b/drivers/media/test-drivers/vim2m.c
index 3e3b424b4860..17213ce42059 100644
--- a/drivers/media/test-drivers/vim2m.c
+++ b/drivers/media/test-drivers/vim2m.c
@@ -960,6 +960,7 @@ static const struct v4l2_ioctl_ops vim2m_ioctl_ops = {
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
+ .vidioc_delete_bufs = v4l2_m2m_ioctl_delete_bufs,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
@@ -1133,6 +1134,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq,
dst_vq->mem_ops = &vb2_vmalloc_memops;
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = &ctx->vb_mutex;
+ dst_vq->supports_delete_bufs = true;
return vb2_queue_init(dst_vq);
}
diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c
index 0cc30397fbad..d1d59943680f 100644
--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
+++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
@@ -831,6 +831,17 @@ int v4l2_m2m_prepare_buf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
}
EXPORT_SYMBOL_GPL(v4l2_m2m_prepare_buf);
+int v4l2_m2m_delete_bufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
+ struct v4l2_delete_buffers *d)
+{
+ struct vb2_queue *vq;
+
+ vq = v4l2_m2m_get_vq(m2m_ctx, d->type);
+
+ return vb2_delete_bufs(vq, d);
+}
+EXPORT_SYMBOL_GPL(v4l2_m2m_delete_bufs);
+
int v4l2_m2m_create_bufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
struct v4l2_create_buffers *create)
{
@@ -1377,6 +1388,15 @@ int v4l2_m2m_ioctl_create_bufs(struct file *file, void *priv,
}
EXPORT_SYMBOL_GPL(v4l2_m2m_ioctl_create_bufs);
+int v4l2_m2m_ioctl_delete_bufs(struct file *file, void *priv,
+ struct v4l2_delete_buffers *d)
+{
+ struct v4l2_fh *fh = file->private_data;
+
+ return v4l2_m2m_delete_bufs(file, fh->m2m_ctx, d);
+}
+EXPORT_SYMBOL_GPL(v4l2_m2m_ioctl_delete_bufs);
+
int v4l2_m2m_ioctl_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
diff --git a/include/media/v4l2-mem2mem.h b/include/media/v4l2-mem2mem.h
index d6c8eb2b5201..161f85c42dc8 100644
--- a/include/media/v4l2-mem2mem.h
+++ b/include/media/v4l2-mem2mem.h
@@ -381,6 +381,16 @@ int v4l2_m2m_dqbuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
int v4l2_m2m_prepare_buf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
struct v4l2_buffer *buf);
+/**
+ * v4l2_m2m_delete_bufs() - delete buffers from the queue
+ *
+ * @file: pointer to struct &file
+ * @m2m_ctx: m2m context assigned to the instance given by struct &v4l2_m2m_ctx
+ * @d: pointer to struct &v4l2_delete_buffers
+ */
+int v4l2_m2m_delete_bufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
+ struct v4l2_delete_buffers *d);
+
/**
* v4l2_m2m_create_bufs() - create a source or destination buffer, depending
* on the type
@@ -860,6 +870,8 @@ int v4l2_m2m_ioctl_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *rb);
int v4l2_m2m_ioctl_create_bufs(struct file *file, void *fh,
struct v4l2_create_buffers *create);
+int v4l2_m2m_ioctl_delete_bufs(struct file *file, void *priv,
+ struct v4l2_delete_buffers *d);
int v4l2_m2m_ioctl_querybuf(struct file *file, void *fh,
struct v4l2_buffer *buf);
int v4l2_m2m_ioctl_expbuf(struct file *file, void *fh,
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 53/53] media: test-drivers: Use helper for DELETE_BUFS ioctl
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-27 15:35 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Allow test drivers to use DELETE_BUFS by adding vb2_ioctl_delete_bufs() helper.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/vicodec/vicodec-core.c | 2 ++
drivers/media/test-drivers/vimc/vimc-capture.c | 2 ++
drivers/media/test-drivers/visl/visl-video.c | 2 ++
drivers/media/test-drivers/vivid/vivid-core.c | 13 ++++++++++---
4 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/drivers/media/test-drivers/vicodec/vicodec-core.c b/drivers/media/test-drivers/vicodec/vicodec-core.c
index 69cbe2c094e1..f14a8fd506d0 100644
--- a/drivers/media/test-drivers/vicodec/vicodec-core.c
+++ b/drivers/media/test-drivers/vicodec/vicodec-core.c
@@ -1339,6 +1339,7 @@ static const struct v4l2_ioctl_ops vicodec_ioctl_ops = {
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
+ .vidioc_delete_bufs = v4l2_m2m_ioctl_delete_bufs,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
@@ -1725,6 +1726,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq,
dst_vq->mem_ops = &vb2_vmalloc_memops;
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = src_vq->lock;
+ dst_vq->supports_delete_bufs = true;
return vb2_queue_init(dst_vq);
}
diff --git a/drivers/media/test-drivers/vimc/vimc-capture.c b/drivers/media/test-drivers/vimc/vimc-capture.c
index aa944270e716..fda7ea3a6cb6 100644
--- a/drivers/media/test-drivers/vimc/vimc-capture.c
+++ b/drivers/media/test-drivers/vimc/vimc-capture.c
@@ -221,6 +221,7 @@ static const struct v4l2_ioctl_ops vimc_capture_ioctl_ops = {
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
+ .vidioc_delete_bufs = vb2_ioctl_delete_bufs,
};
static void vimc_capture_return_all_buffers(struct vimc_capture_device *vcapture,
@@ -435,6 +436,7 @@ static struct vimc_ent_device *vimc_capture_add(struct vimc_device *vimc,
q->min_buffers_needed = 2;
q->lock = &vcapture->lock;
q->dev = v4l2_dev->dev;
+ q->supports_delete_bufs = true;
ret = vb2_queue_init(q);
if (ret) {
diff --git a/drivers/media/test-drivers/visl/visl-video.c b/drivers/media/test-drivers/visl/visl-video.c
index 7cac6a6456eb..bd6c112f7846 100644
--- a/drivers/media/test-drivers/visl/visl-video.c
+++ b/drivers/media/test-drivers/visl/visl-video.c
@@ -521,6 +521,7 @@ const struct v4l2_ioctl_ops visl_ioctl_ops = {
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
+ .vidioc_delete_bufs = v4l2_m2m_ioctl_delete_bufs,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
@@ -728,6 +729,7 @@ int visl_queue_init(void *priv, struct vb2_queue *src_vq,
dst_vq->mem_ops = &vb2_vmalloc_memops;
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = &ctx->vb_mutex;
+ dst_vq->supports_delete_bufs = true;
return vb2_queue_init(dst_vq);
}
diff --git a/drivers/media/test-drivers/vivid/vivid-core.c b/drivers/media/test-drivers/vivid/vivid-core.c
index 58a059140365..2ed8847ce86e 100644
--- a/drivers/media/test-drivers/vivid/vivid-core.c
+++ b/drivers/media/test-drivers/vivid/vivid-core.c
@@ -769,6 +769,7 @@ static const struct v4l2_ioctl_ops vivid_ioctl_ops = {
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
+ .vidioc_delete_bufs = vb2_ioctl_delete_bufs,
.vidioc_enum_input = vivid_enum_input,
.vidioc_g_input = vivid_g_input,
@@ -876,12 +877,18 @@ static int vivid_create_queue(struct vivid_dev *dev,
q->type = buf_type;
q->io_modes = VB2_MMAP | VB2_DMABUF;
q->io_modes |= V4L2_TYPE_IS_OUTPUT(buf_type) ? VB2_WRITE : VB2_READ;
- if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
q->max_num_buffers = 64;
- if (buf_type == V4L2_BUF_TYPE_SDR_CAPTURE)
+ q->supports_delete_bufs = true;
+ }
+ if (buf_type == V4L2_BUF_TYPE_SDR_CAPTURE) {
q->max_num_buffers = 1024;
- if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE)
+ q->supports_delete_bufs = true;
+ }
+ if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE) {
q->max_num_buffers = 32768;
+ q->supports_delete_bufs = true;
+ }
if (allocators[dev->inst] != 1)
q->io_modes |= VB2_USERPTR;
--
2.39.2
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 53/53] media: test-drivers: Use helper for DELETE_BUFS ioctl
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Allow test drivers to use DELETE_BUFS by adding vb2_ioctl_delete_bufs() helper.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/vicodec/vicodec-core.c | 2 ++
drivers/media/test-drivers/vimc/vimc-capture.c | 2 ++
drivers/media/test-drivers/visl/visl-video.c | 2 ++
drivers/media/test-drivers/vivid/vivid-core.c | 13 ++++++++++---
4 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/drivers/media/test-drivers/vicodec/vicodec-core.c b/drivers/media/test-drivers/vicodec/vicodec-core.c
index 69cbe2c094e1..f14a8fd506d0 100644
--- a/drivers/media/test-drivers/vicodec/vicodec-core.c
+++ b/drivers/media/test-drivers/vicodec/vicodec-core.c
@@ -1339,6 +1339,7 @@ static const struct v4l2_ioctl_ops vicodec_ioctl_ops = {
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
+ .vidioc_delete_bufs = v4l2_m2m_ioctl_delete_bufs,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
@@ -1725,6 +1726,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq,
dst_vq->mem_ops = &vb2_vmalloc_memops;
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = src_vq->lock;
+ dst_vq->supports_delete_bufs = true;
return vb2_queue_init(dst_vq);
}
diff --git a/drivers/media/test-drivers/vimc/vimc-capture.c b/drivers/media/test-drivers/vimc/vimc-capture.c
index aa944270e716..fda7ea3a6cb6 100644
--- a/drivers/media/test-drivers/vimc/vimc-capture.c
+++ b/drivers/media/test-drivers/vimc/vimc-capture.c
@@ -221,6 +221,7 @@ static const struct v4l2_ioctl_ops vimc_capture_ioctl_ops = {
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
+ .vidioc_delete_bufs = vb2_ioctl_delete_bufs,
};
static void vimc_capture_return_all_buffers(struct vimc_capture_device *vcapture,
@@ -435,6 +436,7 @@ static struct vimc_ent_device *vimc_capture_add(struct vimc_device *vimc,
q->min_buffers_needed = 2;
q->lock = &vcapture->lock;
q->dev = v4l2_dev->dev;
+ q->supports_delete_bufs = true;
ret = vb2_queue_init(q);
if (ret) {
diff --git a/drivers/media/test-drivers/visl/visl-video.c b/drivers/media/test-drivers/visl/visl-video.c
index 7cac6a6456eb..bd6c112f7846 100644
--- a/drivers/media/test-drivers/visl/visl-video.c
+++ b/drivers/media/test-drivers/visl/visl-video.c
@@ -521,6 +521,7 @@ const struct v4l2_ioctl_ops visl_ioctl_ops = {
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
+ .vidioc_delete_bufs = v4l2_m2m_ioctl_delete_bufs,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
@@ -728,6 +729,7 @@ int visl_queue_init(void *priv, struct vb2_queue *src_vq,
dst_vq->mem_ops = &vb2_vmalloc_memops;
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = &ctx->vb_mutex;
+ dst_vq->supports_delete_bufs = true;
return vb2_queue_init(dst_vq);
}
diff --git a/drivers/media/test-drivers/vivid/vivid-core.c b/drivers/media/test-drivers/vivid/vivid-core.c
index 58a059140365..2ed8847ce86e 100644
--- a/drivers/media/test-drivers/vivid/vivid-core.c
+++ b/drivers/media/test-drivers/vivid/vivid-core.c
@@ -769,6 +769,7 @@ static const struct v4l2_ioctl_ops vivid_ioctl_ops = {
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
+ .vidioc_delete_bufs = vb2_ioctl_delete_bufs,
.vidioc_enum_input = vivid_enum_input,
.vidioc_g_input = vivid_g_input,
@@ -876,12 +877,18 @@ static int vivid_create_queue(struct vivid_dev *dev,
q->type = buf_type;
q->io_modes = VB2_MMAP | VB2_DMABUF;
q->io_modes |= V4L2_TYPE_IS_OUTPUT(buf_type) ? VB2_WRITE : VB2_READ;
- if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
q->max_num_buffers = 64;
- if (buf_type == V4L2_BUF_TYPE_SDR_CAPTURE)
+ q->supports_delete_bufs = true;
+ }
+ if (buf_type == V4L2_BUF_TYPE_SDR_CAPTURE) {
q->max_num_buffers = 1024;
- if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE)
+ q->supports_delete_bufs = true;
+ }
+ if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE) {
q->max_num_buffers = 32768;
+ q->supports_delete_bufs = true;
+ }
if (allocators[dev->inst] != 1)
q->io_modes |= VB2_USERPTR;
--
2.39.2
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 190+ messages in thread
* [PATCH v8 53/53] media: test-drivers: Use helper for DELETE_BUFS ioctl
@ 2023-09-27 15:35 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-27 15:35 UTC (permalink / raw)
To: mchehab, tfiga, m.szyprowski, ming.qian, ezequiel, p.zabel,
gregkh, hverkuil-cisco, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel,
Benjamin Gaignard
Allow test drivers to use DELETE_BUFS by adding vb2_ioctl_delete_bufs() helper.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/media/test-drivers/vicodec/vicodec-core.c | 2 ++
drivers/media/test-drivers/vimc/vimc-capture.c | 2 ++
drivers/media/test-drivers/visl/visl-video.c | 2 ++
drivers/media/test-drivers/vivid/vivid-core.c | 13 ++++++++++---
4 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/drivers/media/test-drivers/vicodec/vicodec-core.c b/drivers/media/test-drivers/vicodec/vicodec-core.c
index 69cbe2c094e1..f14a8fd506d0 100644
--- a/drivers/media/test-drivers/vicodec/vicodec-core.c
+++ b/drivers/media/test-drivers/vicodec/vicodec-core.c
@@ -1339,6 +1339,7 @@ static const struct v4l2_ioctl_ops vicodec_ioctl_ops = {
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
+ .vidioc_delete_bufs = v4l2_m2m_ioctl_delete_bufs,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
@@ -1725,6 +1726,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq,
dst_vq->mem_ops = &vb2_vmalloc_memops;
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = src_vq->lock;
+ dst_vq->supports_delete_bufs = true;
return vb2_queue_init(dst_vq);
}
diff --git a/drivers/media/test-drivers/vimc/vimc-capture.c b/drivers/media/test-drivers/vimc/vimc-capture.c
index aa944270e716..fda7ea3a6cb6 100644
--- a/drivers/media/test-drivers/vimc/vimc-capture.c
+++ b/drivers/media/test-drivers/vimc/vimc-capture.c
@@ -221,6 +221,7 @@ static const struct v4l2_ioctl_ops vimc_capture_ioctl_ops = {
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
+ .vidioc_delete_bufs = vb2_ioctl_delete_bufs,
};
static void vimc_capture_return_all_buffers(struct vimc_capture_device *vcapture,
@@ -435,6 +436,7 @@ static struct vimc_ent_device *vimc_capture_add(struct vimc_device *vimc,
q->min_buffers_needed = 2;
q->lock = &vcapture->lock;
q->dev = v4l2_dev->dev;
+ q->supports_delete_bufs = true;
ret = vb2_queue_init(q);
if (ret) {
diff --git a/drivers/media/test-drivers/visl/visl-video.c b/drivers/media/test-drivers/visl/visl-video.c
index 7cac6a6456eb..bd6c112f7846 100644
--- a/drivers/media/test-drivers/visl/visl-video.c
+++ b/drivers/media/test-drivers/visl/visl-video.c
@@ -521,6 +521,7 @@ const struct v4l2_ioctl_ops visl_ioctl_ops = {
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
+ .vidioc_delete_bufs = v4l2_m2m_ioctl_delete_bufs,
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
@@ -728,6 +729,7 @@ int visl_queue_init(void *priv, struct vb2_queue *src_vq,
dst_vq->mem_ops = &vb2_vmalloc_memops;
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->lock = &ctx->vb_mutex;
+ dst_vq->supports_delete_bufs = true;
return vb2_queue_init(dst_vq);
}
diff --git a/drivers/media/test-drivers/vivid/vivid-core.c b/drivers/media/test-drivers/vivid/vivid-core.c
index 58a059140365..2ed8847ce86e 100644
--- a/drivers/media/test-drivers/vivid/vivid-core.c
+++ b/drivers/media/test-drivers/vivid/vivid-core.c
@@ -769,6 +769,7 @@ static const struct v4l2_ioctl_ops vivid_ioctl_ops = {
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
+ .vidioc_delete_bufs = vb2_ioctl_delete_bufs,
.vidioc_enum_input = vivid_enum_input,
.vidioc_g_input = vivid_g_input,
@@ -876,12 +877,18 @@ static int vivid_create_queue(struct vivid_dev *dev,
q->type = buf_type;
q->io_modes = VB2_MMAP | VB2_DMABUF;
q->io_modes |= V4L2_TYPE_IS_OUTPUT(buf_type) ? VB2_WRITE : VB2_READ;
- if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
q->max_num_buffers = 64;
- if (buf_type == V4L2_BUF_TYPE_SDR_CAPTURE)
+ q->supports_delete_bufs = true;
+ }
+ if (buf_type == V4L2_BUF_TYPE_SDR_CAPTURE) {
q->max_num_buffers = 1024;
- if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE)
+ q->supports_delete_bufs = true;
+ }
+ if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE) {
q->max_num_buffers = 32768;
+ q->supports_delete_bufs = true;
+ }
if (allocators[dev->inst] != 1)
q->io_modes |= VB2_USERPTR;
--
2.39.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 190+ messages in thread
* Re: [PATCH v8 00/53] Add DELETE_BUF ioctl
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-28 13:04 ` Hans Verkuil
-1 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-09-28 13:04 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
Hi Benjamin,
On 27/09/2023 17:35, Benjamin Gaignard wrote:
> Unlike when resolution change on keyframes, dynamic resolution change
> on inter frames doesn't allow to do a stream off/on sequence because
> it is need to keep all previous references alive to decode inter frames.
> This constraint have two main problems:
> - more memory consumption.
> - more buffers in use.
> To solve these issue this series introduce DELETE_BUFS ioctl and remove
> the 32 buffers limit per queue.
>
> VP9 conformance tests using fluster give a score of 210/305.
> The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
> but require to use postprocessor.
>
> Kernel branch is available here:
> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
>
> GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
> change is here:
> https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
I applied patches 1-46 on top of staging and applied patch 1/2 of v4l-utils. I chose
1-46 since those would be the first batch to be merged.
I had to apply a small patch on top, since amphion was still using max_allowed_buffers:
https://git.linuxtv.org/hverkuil/media_tree.git/commit/?h=delbuf&id=fce79aa0239a3a4e5c7634b9b7ffc356057b70b4
With that change everything compiled cleanly.
But running the regression tests (test-media script) failed with a kernel oops:
Buffer ioctls (Input 0):
fail: v4l2-test-buffers.cpp(611): q.reqbufs(node, 1)
test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
[ 25.309343] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN
[ 25.310067] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
[ 25.310471] CPU: 0 PID: 187 Comm: v4l2-compliance Not tainted 6.6.0-rc3+ #1
[ 25.310837] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 25.311334] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
[ 25.311688] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
0f 0b 4c 89 e8
[ 25.312670] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
[ 25.312948] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
[ 25.313331] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
[ 25.313708] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
[ 25.314097] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
[ 25.314470] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
[ 25.314854] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
[ 25.315281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 25.315594] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
[ 25.315982] Call Trace:
[ 25.316122] <TASK>
[ 25.316243] ? die_addr+0x37/0xa0
[ 25.316433] ? exc_general_protection+0x144/0x210
[ 25.316693] ? asm_exc_general_protection+0x22/0x30
[ 25.316955] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 25.317235] ? __vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
[ 25.317555] vb2_core_create_bufs+0x5a0/0xce0 [videobuf2_common]
[ 25.317879] ? __vb2_queue_alloc+0xd00/0xd00 [videobuf2_common]
[ 25.318213] vb2_create_bufs+0x680/0x7f0 [videobuf2_v4l2]
[ 25.318506] ? __kasan_kmalloc+0x83/0x90
[ 25.318729] ? __kmalloc+0x5c/0x150
[ 25.318924] ? __video_do_ioctl+0x3a5/0xc20 [videodev]
[ 25.319223] ? __copy_timestamp+0x270/0x270 [videobuf2_v4l2]
[ 25.319532] ? v4l_sanitize_format+0x121/0x340 [videodev]
[ 25.319839] vb2_ioctl_create_bufs+0x280/0x440 [videobuf2_v4l2]
[ 25.320162] ? check_fmt+0x15/0x5e0 [videodev]
[ 25.320420] v4l_create_bufs+0xa8/0x150 [videodev]
[ 25.320693] __video_do_ioctl+0x8d0/0xc20 [videodev]
[ 25.320975] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
[ 25.321250] ? __might_fault+0x112/0x170
[ 25.321463] ? __might_fault+0x112/0x170
[ 25.321675] video_usercopy+0x48c/0xd00 [videodev]
[ 25.321949] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
[ 25.322228] ? v4l_enumstd+0x60/0x60 [videodev]
[ 25.322497] ? selinux_bprm_creds_for_exec+0xa90/0xa90
[ 25.322779] ? rseq_ip_fixup+0x304/0x480
[ 25.322995] ? __up_read+0x10b/0x750
[ 25.323201] ? rseq_get_rseq_cs+0x680/0x680
[ 25.323430] v4l2_ioctl+0x17f/0x1f0 [videodev]
[ 25.323689] __x64_sys_ioctl+0x127/0x190
[ 25.323905] do_syscall_64+0x35/0x80
[ 25.324105] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 25.324372] RIP: 0033:0x7fa524bf44eb
[ 25.324564] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b
04 25 28 00 00
[ 25.325533] RSP: 002b:00007ffc888efee0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 25.325933] RAX: ffffffffffffffda RBX: 00007ffc888f0350 RCX: 00007fa524bf44eb
[ 25.326314] RDX: 00007ffc888effb0 RSI: 00000000c100565c RDI: 0000000000000023
[ 25.326702] RBP: 00007ffc888f8550 R08: 0000000000000000 R09: 0000000000000001
[ 25.327081] R10: 0000000000000016 R11: 0000000000000246 R12: 0000000000000000
[ 25.327468] R13: 0000000000000001 R14: 00007ffc888f8010 R15: 00007ffc888f1790
[ 25.327852] </TASK>
[ 25.327979] Modules linked in: vivid videobuf2_dma_contig v4l2_tpg v4l2_dv_timings cec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev videobuf2_common mc rc_core
[ 25.328835] ---[ end trace 0000000000000000 ]---
[ 25.329083] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
[ 25.329434] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
0f 0b 4c 89 e8
[ 25.330417] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
[ 25.330812] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
[ 25.331194] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
[ 25.331594] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
[ 25.331978] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
[ 25.332360] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
[ 25.332746] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
[ 25.333170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 25.333486] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
[ 25.333861] Kernel panic - not syncing: Fatal exception
[ 25.334179] Kernel Offset: 0xbe00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 25.334748] Rebooting in 30 seconds..
I use the build scripts as described here:
https://lore.kernel.org/linux-media/18989016-6392-a77b-6cf7-1223c9161def@xs4all.nl/
I use this command to run the regression tests:
./build.sh -virtme -virtme-utils-path /usr/local/bin none delbuf
(delbuf is the name of my branch)
I don't really want to spend time reviewing this series until this is fixed...
Regards,
Hans
>
> changes in version 8:
> - Add V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS and new 'max_buffers' field in v4l2_create_buffers
> structure to report the maximum number of buffers that a queue could allocate.
> - Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS to indicate that a queue support
> DELETE_BUFS ioctl.
> - Make some test drivers use more than 32 buffers and DELETE_BUFS ioctl.
> - Fix remarks done by Hans
> - Move "media: core: Rework how create_buf index returned value is
> computed" patch to the top of the serie.
>
> changes in version 7:
> - Use a bitmap to know which entries are valid in queue bufs array.
> The number of buffers in the queue could must calculated from the
> bitmap so num_buffers becomes useless. This led to add quite few
> patches to remove it from all the drivers.
> Note: despiste my attention I may have miss some calls to
> num_buffers...
> - Split patches to make them more readable.
> - Run v4l2-compliance with additional delete-bufs tests.
> - Run ./test-media -kmemleak vivid and no more failures.
> Note: I had to remove USERPTR streaming test because they to much
> frequentely hit get_framevec bug. It is not related to my series
> since this happens all the time on master branch.
> - Fix Hans remarks on v6
>
> changes in version 6:
> - Get a patch per driver to use vb2_get_buffer() instead of directly access
> to queue buffers array.
> - Add lock in vb2_core_delete_buf()
> - Use vb2_buffer instead of index
> - Fix various comments
> - Change buffer index name to BUFFER_INDEX_MASK
> - Stop spamming kernel log with unbalanced counters
>
> changes in version 5:
> - Rework offset cookie encoding pattern is n ow the first patch of the
> serie.
> - Use static array instead of allocated one for postprocessor buffers.
>
> changes in version 4:
> - Stop using Xarray, instead let queues decide about their own maximum
> number of buffer and allocate bufs array given that value.
> - Rework offset cookie encoding pattern.
> - Change DELETE_BUF to DELETE_BUFS because it now usable for
> range of buffer to be symetrical of CREATE_BUFS.
> - Add fixes tags on couple of Verisilicon related patches.
> - Be smarter in Verisilicon postprocessor buffers management.
> - Rebase on top of v6.4
>
> changes in version 3:
> - Use Xarray API to store allocated video buffers.
> - No module parameter to limit the number of buffer per queue.
> - Use Xarray inside Verisilicon driver to store postprocessor buffers
> and remove VB2_MAX_FRAME limit.
> - Allow Versilicon driver to change of resolution while streaming
> - Various fixes the Verisilicon VP9 code to improve fluster score.
>
> changes in version 2:
> - Use a dynamic array and not a list to keep trace of allocated buffers.
> Not use IDR interface because it is marked as deprecated in kernel
> documentation.
> - Add a module parameter to limit the number of buffer per queue.
> - Add DELETE_BUF ioctl and m2m helpers.
>
> Regards,
> Benjamin
>
> Benjamin Gaignard (53):
> media: videobuf2: Rework offset 'cookie' encoding pattern
> media: videobuf2: Stop spamming kernel log with all queue counter
> media: videobuf2: Use vb2_buffer instead of index
> media: amphion: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: mediatek: jpeg: Use vb2_get_buffer() instead of directly access
> to buffers array
> media: mediatek: vdec: Remove useless loop
> media: sti: hva: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: visl: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: atomisp: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: dvb-core: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: videobuf2: Access vb2_queue bufs array through helper functions
> media: videobuf2: Be more flexible on the number of queue stored
> buffers
> media: Report the maximum possible number of buffers for the queue
> media: test-drivers: vivid: Increase max supported buffers for capture
> queues
> media: test-drivers: vicodec: Increase max supported capture queue
> buffers
> media: verisilicon: Refactor postprocessor to store more buffers
> media: verisilicon: Store chroma and motion vectors offset
> media: verisilicon: g2: Use common helpers to compute chroma and mv
> offsets
> media: verisilicon: vp9: Allow to change resolution while streaming
> media: Remove duplicated index vs q->num_buffers check
> media: core: Add helper to get queue number of buffers
> media: dvb-core: Do not initialize twice queue num_buffer field
> media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed field
> media: video-i2c: Set min_buffers_needed to 2
> media: pci: cx18: Set correct value to min_buffers_needed field
> media: pci: dt3155: Remove useless check
> media: pci: netup_unidvb: Remove useless number of buffers check
> media: pci: tw68: Stop direct calls to queue num_buffers field
> media: pci: tw686x: Set min_buffers_needed to 3
> media: amphion: Stop direct calls to queue num_buffers field
> media: coda: Stop direct calls to queue num_buffers field
> media: mediatek: vcodec: Stop direct calls to queue num_buffers field
> media: nxp: Stop direct calls to queue num_buffers field
> media: renesas: Set min_buffers_needed to 16
> media: ti: Use queue min_buffers_needed field to set the min number of
> buffers
> media: verisilicon: Stop direct calls to queue num_buffers field
> media: test-drivers: Stop direct calls to queue num_buffers field
> media: usb: airspy: Set min_buffers_needed to 8
> media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
> media: usb: hackrf: Set min_buffers_needed to 8
> media: usb: usbtv: Set min_buffers_needed to 2
> media: atomisp: Stop direct calls to queue num_buffers field
> media: imx: Stop direct calls to queue num_buffers field
> media: meson: vdec: Stop direct calls to queue num_buffers field
> touchscreen: sur40: Stop direct calls to queue num_buffers field
> sample: v4l: Stop direct calls to queue num_buffers field
> media: cedrus: Stop direct calls to queue num_buffers field
> media: core: Rework how create_buf index returned value is computed
> media: core: Add bitmap manage bufs array entries
> media: core: Free range of buffers
> media: v4l2: Add DELETE_BUFS ioctl
> media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
> media: test-drivers: Use helper for DELETE_BUFS ioctl
>
> .../userspace-api/media/v4l/user-func.rst | 1 +
> .../media/v4l/vidioc-create-bufs.rst | 8 +-
> .../media/v4l/vidioc-delete-bufs.rst | 80 +++
> .../media/v4l/vidioc-reqbufs.rst | 2 +
> drivers/input/touchscreen/sur40.c | 5 +-
> .../media/common/videobuf2/videobuf2-core.c | 556 +++++++++++-------
> .../media/common/videobuf2/videobuf2-v4l2.c | 121 +++-
> drivers/media/dvb-core/dvb_vb2.c | 17 +-
> drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +-
> drivers/media/i2c/video-i2c.c | 5 +-
> drivers/media/pci/cx18/cx18-streams.c | 13 +-
> drivers/media/pci/dt3155/dt3155.c | 2 -
> .../pci/netup_unidvb/netup_unidvb_core.c | 4 +-
> drivers/media/pci/tw68/tw68-video.c | 6 +-
> drivers/media/pci/tw686x/tw686x-video.c | 13 +-
> drivers/media/platform/amphion/vpu_dbg.c | 30 +-
> drivers/media/platform/amphion/vpu_v4l2.c | 4 +-
> .../media/platform/chips-media/coda-common.c | 2 +-
> .../platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +-
> .../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 +-
> .../mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
> drivers/media/platform/nxp/imx7-media-csi.c | 7 +-
> drivers/media/platform/renesas/rcar_drif.c | 8 +-
> drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +-
> .../media/platform/ti/am437x/am437x-vpfe.c | 7 +-
> drivers/media/platform/ti/cal/cal-video.c | 5 +-
> .../media/platform/ti/davinci/vpif_capture.c | 5 +-
> .../media/platform/ti/davinci/vpif_display.c | 5 +-
> drivers/media/platform/ti/omap/omap_vout.c | 5 +-
> drivers/media/platform/verisilicon/hantro.h | 9 +-
> .../media/platform/verisilicon/hantro_drv.c | 5 +-
> .../media/platform/verisilicon/hantro_g2.c | 14 +
> .../platform/verisilicon/hantro_g2_hevc_dec.c | 18 +-
> .../platform/verisilicon/hantro_g2_vp9_dec.c | 28 +-
> .../media/platform/verisilicon/hantro_hw.h | 7 +-
> .../platform/verisilicon/hantro_postproc.c | 93 ++-
> .../media/platform/verisilicon/hantro_v4l2.c | 27 +-
> .../media/test-drivers/vicodec/vicodec-core.c | 3 +
> drivers/media/test-drivers/vim2m.c | 2 +
> .../media/test-drivers/vimc/vimc-capture.c | 2 +
> drivers/media/test-drivers/visl/visl-dec.c | 32 +-
> drivers/media/test-drivers/visl/visl-video.c | 2 +
> drivers/media/test-drivers/vivid/vivid-core.c | 14 +
> .../media/test-drivers/vivid/vivid-meta-cap.c | 3 -
> .../media/test-drivers/vivid/vivid-meta-out.c | 5 +-
> .../test-drivers/vivid/vivid-touch-cap.c | 5 +-
> .../media/test-drivers/vivid/vivid-vbi-cap.c | 5 +-
> .../media/test-drivers/vivid/vivid-vbi-out.c | 5 +-
> .../media/test-drivers/vivid/vivid-vid-cap.c | 5 +-
> .../media/test-drivers/vivid/vivid-vid-out.c | 5 +-
> drivers/media/usb/airspy/airspy.c | 9 +-
> drivers/media/usb/cx231xx/cx231xx-417.c | 4 +-
> drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-
> drivers/media/usb/hackrf/hackrf.c | 9 +-
> drivers/media/usb/usbtv/usbtv-video.c | 3 +-
> drivers/media/v4l2-core/v4l2-dev.c | 1 +
> drivers/media/v4l2-core/v4l2-ioctl.c | 21 +-
> drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +
> .../staging/media/atomisp/pci/atomisp_ioctl.c | 4 +-
> drivers/staging/media/imx/imx-media-capture.c | 7 +-
> drivers/staging/media/meson/vdec/vdec.c | 13 +-
> .../staging/media/sunxi/cedrus/cedrus_h264.c | 8 +-
> .../staging/media/sunxi/cedrus/cedrus_h265.c | 9 +-
> include/media/v4l2-ioctl.h | 4 +
> include/media/v4l2-mem2mem.h | 12 +
> include/media/videobuf2-core.h | 65 +-
> include/media/videobuf2-v4l2.h | 13 +
> include/uapi/linux/videodev2.h | 24 +-
> samples/v4l/v4l2-pci-skeleton.c | 5 +-
> 69 files changed, 969 insertions(+), 502 deletions(-)
> create mode 100644 Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
>
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 00/53] Add DELETE_BUF ioctl
@ 2023-09-28 13:04 ` Hans Verkuil
0 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-09-28 13:04 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
Hi Benjamin,
On 27/09/2023 17:35, Benjamin Gaignard wrote:
> Unlike when resolution change on keyframes, dynamic resolution change
> on inter frames doesn't allow to do a stream off/on sequence because
> it is need to keep all previous references alive to decode inter frames.
> This constraint have two main problems:
> - more memory consumption.
> - more buffers in use.
> To solve these issue this series introduce DELETE_BUFS ioctl and remove
> the 32 buffers limit per queue.
>
> VP9 conformance tests using fluster give a score of 210/305.
> The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
> but require to use postprocessor.
>
> Kernel branch is available here:
> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
>
> GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
> change is here:
> https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
I applied patches 1-46 on top of staging and applied patch 1/2 of v4l-utils. I chose
1-46 since those would be the first batch to be merged.
I had to apply a small patch on top, since amphion was still using max_allowed_buffers:
https://git.linuxtv.org/hverkuil/media_tree.git/commit/?h=delbuf&id=fce79aa0239a3a4e5c7634b9b7ffc356057b70b4
With that change everything compiled cleanly.
But running the regression tests (test-media script) failed with a kernel oops:
Buffer ioctls (Input 0):
fail: v4l2-test-buffers.cpp(611): q.reqbufs(node, 1)
test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
[ 25.309343] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN
[ 25.310067] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
[ 25.310471] CPU: 0 PID: 187 Comm: v4l2-compliance Not tainted 6.6.0-rc3+ #1
[ 25.310837] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 25.311334] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
[ 25.311688] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
0f 0b 4c 89 e8
[ 25.312670] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
[ 25.312948] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
[ 25.313331] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
[ 25.313708] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
[ 25.314097] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
[ 25.314470] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
[ 25.314854] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
[ 25.315281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 25.315594] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
[ 25.315982] Call Trace:
[ 25.316122] <TASK>
[ 25.316243] ? die_addr+0x37/0xa0
[ 25.316433] ? exc_general_protection+0x144/0x210
[ 25.316693] ? asm_exc_general_protection+0x22/0x30
[ 25.316955] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 25.317235] ? __vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
[ 25.317555] vb2_core_create_bufs+0x5a0/0xce0 [videobuf2_common]
[ 25.317879] ? __vb2_queue_alloc+0xd00/0xd00 [videobuf2_common]
[ 25.318213] vb2_create_bufs+0x680/0x7f0 [videobuf2_v4l2]
[ 25.318506] ? __kasan_kmalloc+0x83/0x90
[ 25.318729] ? __kmalloc+0x5c/0x150
[ 25.318924] ? __video_do_ioctl+0x3a5/0xc20 [videodev]
[ 25.319223] ? __copy_timestamp+0x270/0x270 [videobuf2_v4l2]
[ 25.319532] ? v4l_sanitize_format+0x121/0x340 [videodev]
[ 25.319839] vb2_ioctl_create_bufs+0x280/0x440 [videobuf2_v4l2]
[ 25.320162] ? check_fmt+0x15/0x5e0 [videodev]
[ 25.320420] v4l_create_bufs+0xa8/0x150 [videodev]
[ 25.320693] __video_do_ioctl+0x8d0/0xc20 [videodev]
[ 25.320975] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
[ 25.321250] ? __might_fault+0x112/0x170
[ 25.321463] ? __might_fault+0x112/0x170
[ 25.321675] video_usercopy+0x48c/0xd00 [videodev]
[ 25.321949] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
[ 25.322228] ? v4l_enumstd+0x60/0x60 [videodev]
[ 25.322497] ? selinux_bprm_creds_for_exec+0xa90/0xa90
[ 25.322779] ? rseq_ip_fixup+0x304/0x480
[ 25.322995] ? __up_read+0x10b/0x750
[ 25.323201] ? rseq_get_rseq_cs+0x680/0x680
[ 25.323430] v4l2_ioctl+0x17f/0x1f0 [videodev]
[ 25.323689] __x64_sys_ioctl+0x127/0x190
[ 25.323905] do_syscall_64+0x35/0x80
[ 25.324105] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 25.324372] RIP: 0033:0x7fa524bf44eb
[ 25.324564] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b
04 25 28 00 00
[ 25.325533] RSP: 002b:00007ffc888efee0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 25.325933] RAX: ffffffffffffffda RBX: 00007ffc888f0350 RCX: 00007fa524bf44eb
[ 25.326314] RDX: 00007ffc888effb0 RSI: 00000000c100565c RDI: 0000000000000023
[ 25.326702] RBP: 00007ffc888f8550 R08: 0000000000000000 R09: 0000000000000001
[ 25.327081] R10: 0000000000000016 R11: 0000000000000246 R12: 0000000000000000
[ 25.327468] R13: 0000000000000001 R14: 00007ffc888f8010 R15: 00007ffc888f1790
[ 25.327852] </TASK>
[ 25.327979] Modules linked in: vivid videobuf2_dma_contig v4l2_tpg v4l2_dv_timings cec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev videobuf2_common mc rc_core
[ 25.328835] ---[ end trace 0000000000000000 ]---
[ 25.329083] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
[ 25.329434] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
0f 0b 4c 89 e8
[ 25.330417] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
[ 25.330812] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
[ 25.331194] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
[ 25.331594] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
[ 25.331978] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
[ 25.332360] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
[ 25.332746] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
[ 25.333170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 25.333486] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
[ 25.333861] Kernel panic - not syncing: Fatal exception
[ 25.334179] Kernel Offset: 0xbe00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 25.334748] Rebooting in 30 seconds..
I use the build scripts as described here:
https://lore.kernel.org/linux-media/18989016-6392-a77b-6cf7-1223c9161def@xs4all.nl/
I use this command to run the regression tests:
./build.sh -virtme -virtme-utils-path /usr/local/bin none delbuf
(delbuf is the name of my branch)
I don't really want to spend time reviewing this series until this is fixed...
Regards,
Hans
>
> changes in version 8:
> - Add V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS and new 'max_buffers' field in v4l2_create_buffers
> structure to report the maximum number of buffers that a queue could allocate.
> - Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS to indicate that a queue support
> DELETE_BUFS ioctl.
> - Make some test drivers use more than 32 buffers and DELETE_BUFS ioctl.
> - Fix remarks done by Hans
> - Move "media: core: Rework how create_buf index returned value is
> computed" patch to the top of the serie.
>
> changes in version 7:
> - Use a bitmap to know which entries are valid in queue bufs array.
> The number of buffers in the queue could must calculated from the
> bitmap so num_buffers becomes useless. This led to add quite few
> patches to remove it from all the drivers.
> Note: despiste my attention I may have miss some calls to
> num_buffers...
> - Split patches to make them more readable.
> - Run v4l2-compliance with additional delete-bufs tests.
> - Run ./test-media -kmemleak vivid and no more failures.
> Note: I had to remove USERPTR streaming test because they to much
> frequentely hit get_framevec bug. It is not related to my series
> since this happens all the time on master branch.
> - Fix Hans remarks on v6
>
> changes in version 6:
> - Get a patch per driver to use vb2_get_buffer() instead of directly access
> to queue buffers array.
> - Add lock in vb2_core_delete_buf()
> - Use vb2_buffer instead of index
> - Fix various comments
> - Change buffer index name to BUFFER_INDEX_MASK
> - Stop spamming kernel log with unbalanced counters
>
> changes in version 5:
> - Rework offset cookie encoding pattern is n ow the first patch of the
> serie.
> - Use static array instead of allocated one for postprocessor buffers.
>
> changes in version 4:
> - Stop using Xarray, instead let queues decide about their own maximum
> number of buffer and allocate bufs array given that value.
> - Rework offset cookie encoding pattern.
> - Change DELETE_BUF to DELETE_BUFS because it now usable for
> range of buffer to be symetrical of CREATE_BUFS.
> - Add fixes tags on couple of Verisilicon related patches.
> - Be smarter in Verisilicon postprocessor buffers management.
> - Rebase on top of v6.4
>
> changes in version 3:
> - Use Xarray API to store allocated video buffers.
> - No module parameter to limit the number of buffer per queue.
> - Use Xarray inside Verisilicon driver to store postprocessor buffers
> and remove VB2_MAX_FRAME limit.
> - Allow Versilicon driver to change of resolution while streaming
> - Various fixes the Verisilicon VP9 code to improve fluster score.
>
> changes in version 2:
> - Use a dynamic array and not a list to keep trace of allocated buffers.
> Not use IDR interface because it is marked as deprecated in kernel
> documentation.
> - Add a module parameter to limit the number of buffer per queue.
> - Add DELETE_BUF ioctl and m2m helpers.
>
> Regards,
> Benjamin
>
> Benjamin Gaignard (53):
> media: videobuf2: Rework offset 'cookie' encoding pattern
> media: videobuf2: Stop spamming kernel log with all queue counter
> media: videobuf2: Use vb2_buffer instead of index
> media: amphion: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: mediatek: jpeg: Use vb2_get_buffer() instead of directly access
> to buffers array
> media: mediatek: vdec: Remove useless loop
> media: sti: hva: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: visl: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: atomisp: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: dvb-core: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: videobuf2: Access vb2_queue bufs array through helper functions
> media: videobuf2: Be more flexible on the number of queue stored
> buffers
> media: Report the maximum possible number of buffers for the queue
> media: test-drivers: vivid: Increase max supported buffers for capture
> queues
> media: test-drivers: vicodec: Increase max supported capture queue
> buffers
> media: verisilicon: Refactor postprocessor to store more buffers
> media: verisilicon: Store chroma and motion vectors offset
> media: verisilicon: g2: Use common helpers to compute chroma and mv
> offsets
> media: verisilicon: vp9: Allow to change resolution while streaming
> media: Remove duplicated index vs q->num_buffers check
> media: core: Add helper to get queue number of buffers
> media: dvb-core: Do not initialize twice queue num_buffer field
> media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed field
> media: video-i2c: Set min_buffers_needed to 2
> media: pci: cx18: Set correct value to min_buffers_needed field
> media: pci: dt3155: Remove useless check
> media: pci: netup_unidvb: Remove useless number of buffers check
> media: pci: tw68: Stop direct calls to queue num_buffers field
> media: pci: tw686x: Set min_buffers_needed to 3
> media: amphion: Stop direct calls to queue num_buffers field
> media: coda: Stop direct calls to queue num_buffers field
> media: mediatek: vcodec: Stop direct calls to queue num_buffers field
> media: nxp: Stop direct calls to queue num_buffers field
> media: renesas: Set min_buffers_needed to 16
> media: ti: Use queue min_buffers_needed field to set the min number of
> buffers
> media: verisilicon: Stop direct calls to queue num_buffers field
> media: test-drivers: Stop direct calls to queue num_buffers field
> media: usb: airspy: Set min_buffers_needed to 8
> media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
> media: usb: hackrf: Set min_buffers_needed to 8
> media: usb: usbtv: Set min_buffers_needed to 2
> media: atomisp: Stop direct calls to queue num_buffers field
> media: imx: Stop direct calls to queue num_buffers field
> media: meson: vdec: Stop direct calls to queue num_buffers field
> touchscreen: sur40: Stop direct calls to queue num_buffers field
> sample: v4l: Stop direct calls to queue num_buffers field
> media: cedrus: Stop direct calls to queue num_buffers field
> media: core: Rework how create_buf index returned value is computed
> media: core: Add bitmap manage bufs array entries
> media: core: Free range of buffers
> media: v4l2: Add DELETE_BUFS ioctl
> media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
> media: test-drivers: Use helper for DELETE_BUFS ioctl
>
> .../userspace-api/media/v4l/user-func.rst | 1 +
> .../media/v4l/vidioc-create-bufs.rst | 8 +-
> .../media/v4l/vidioc-delete-bufs.rst | 80 +++
> .../media/v4l/vidioc-reqbufs.rst | 2 +
> drivers/input/touchscreen/sur40.c | 5 +-
> .../media/common/videobuf2/videobuf2-core.c | 556 +++++++++++-------
> .../media/common/videobuf2/videobuf2-v4l2.c | 121 +++-
> drivers/media/dvb-core/dvb_vb2.c | 17 +-
> drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +-
> drivers/media/i2c/video-i2c.c | 5 +-
> drivers/media/pci/cx18/cx18-streams.c | 13 +-
> drivers/media/pci/dt3155/dt3155.c | 2 -
> .../pci/netup_unidvb/netup_unidvb_core.c | 4 +-
> drivers/media/pci/tw68/tw68-video.c | 6 +-
> drivers/media/pci/tw686x/tw686x-video.c | 13 +-
> drivers/media/platform/amphion/vpu_dbg.c | 30 +-
> drivers/media/platform/amphion/vpu_v4l2.c | 4 +-
> .../media/platform/chips-media/coda-common.c | 2 +-
> .../platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +-
> .../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 +-
> .../mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
> drivers/media/platform/nxp/imx7-media-csi.c | 7 +-
> drivers/media/platform/renesas/rcar_drif.c | 8 +-
> drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +-
> .../media/platform/ti/am437x/am437x-vpfe.c | 7 +-
> drivers/media/platform/ti/cal/cal-video.c | 5 +-
> .../media/platform/ti/davinci/vpif_capture.c | 5 +-
> .../media/platform/ti/davinci/vpif_display.c | 5 +-
> drivers/media/platform/ti/omap/omap_vout.c | 5 +-
> drivers/media/platform/verisilicon/hantro.h | 9 +-
> .../media/platform/verisilicon/hantro_drv.c | 5 +-
> .../media/platform/verisilicon/hantro_g2.c | 14 +
> .../platform/verisilicon/hantro_g2_hevc_dec.c | 18 +-
> .../platform/verisilicon/hantro_g2_vp9_dec.c | 28 +-
> .../media/platform/verisilicon/hantro_hw.h | 7 +-
> .../platform/verisilicon/hantro_postproc.c | 93 ++-
> .../media/platform/verisilicon/hantro_v4l2.c | 27 +-
> .../media/test-drivers/vicodec/vicodec-core.c | 3 +
> drivers/media/test-drivers/vim2m.c | 2 +
> .../media/test-drivers/vimc/vimc-capture.c | 2 +
> drivers/media/test-drivers/visl/visl-dec.c | 32 +-
> drivers/media/test-drivers/visl/visl-video.c | 2 +
> drivers/media/test-drivers/vivid/vivid-core.c | 14 +
> .../media/test-drivers/vivid/vivid-meta-cap.c | 3 -
> .../media/test-drivers/vivid/vivid-meta-out.c | 5 +-
> .../test-drivers/vivid/vivid-touch-cap.c | 5 +-
> .../media/test-drivers/vivid/vivid-vbi-cap.c | 5 +-
> .../media/test-drivers/vivid/vivid-vbi-out.c | 5 +-
> .../media/test-drivers/vivid/vivid-vid-cap.c | 5 +-
> .../media/test-drivers/vivid/vivid-vid-out.c | 5 +-
> drivers/media/usb/airspy/airspy.c | 9 +-
> drivers/media/usb/cx231xx/cx231xx-417.c | 4 +-
> drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-
> drivers/media/usb/hackrf/hackrf.c | 9 +-
> drivers/media/usb/usbtv/usbtv-video.c | 3 +-
> drivers/media/v4l2-core/v4l2-dev.c | 1 +
> drivers/media/v4l2-core/v4l2-ioctl.c | 21 +-
> drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +
> .../staging/media/atomisp/pci/atomisp_ioctl.c | 4 +-
> drivers/staging/media/imx/imx-media-capture.c | 7 +-
> drivers/staging/media/meson/vdec/vdec.c | 13 +-
> .../staging/media/sunxi/cedrus/cedrus_h264.c | 8 +-
> .../staging/media/sunxi/cedrus/cedrus_h265.c | 9 +-
> include/media/v4l2-ioctl.h | 4 +
> include/media/v4l2-mem2mem.h | 12 +
> include/media/videobuf2-core.h | 65 +-
> include/media/videobuf2-v4l2.h | 13 +
> include/uapi/linux/videodev2.h | 24 +-
> samples/v4l/v4l2-pci-skeleton.c | 5 +-
> 69 files changed, 969 insertions(+), 502 deletions(-)
> create mode 100644 Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
>
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
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^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 00/53] Add DELETE_BUF ioctl
@ 2023-09-28 13:04 ` Hans Verkuil
0 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-09-28 13:04 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
Hi Benjamin,
On 27/09/2023 17:35, Benjamin Gaignard wrote:
> Unlike when resolution change on keyframes, dynamic resolution change
> on inter frames doesn't allow to do a stream off/on sequence because
> it is need to keep all previous references alive to decode inter frames.
> This constraint have two main problems:
> - more memory consumption.
> - more buffers in use.
> To solve these issue this series introduce DELETE_BUFS ioctl and remove
> the 32 buffers limit per queue.
>
> VP9 conformance tests using fluster give a score of 210/305.
> The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
> but require to use postprocessor.
>
> Kernel branch is available here:
> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
>
> GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
> change is here:
> https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
I applied patches 1-46 on top of staging and applied patch 1/2 of v4l-utils. I chose
1-46 since those would be the first batch to be merged.
I had to apply a small patch on top, since amphion was still using max_allowed_buffers:
https://git.linuxtv.org/hverkuil/media_tree.git/commit/?h=delbuf&id=fce79aa0239a3a4e5c7634b9b7ffc356057b70b4
With that change everything compiled cleanly.
But running the regression tests (test-media script) failed with a kernel oops:
Buffer ioctls (Input 0):
fail: v4l2-test-buffers.cpp(611): q.reqbufs(node, 1)
test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
[ 25.309343] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN
[ 25.310067] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
[ 25.310471] CPU: 0 PID: 187 Comm: v4l2-compliance Not tainted 6.6.0-rc3+ #1
[ 25.310837] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 25.311334] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
[ 25.311688] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
0f 0b 4c 89 e8
[ 25.312670] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
[ 25.312948] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
[ 25.313331] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
[ 25.313708] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
[ 25.314097] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
[ 25.314470] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
[ 25.314854] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
[ 25.315281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 25.315594] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
[ 25.315982] Call Trace:
[ 25.316122] <TASK>
[ 25.316243] ? die_addr+0x37/0xa0
[ 25.316433] ? exc_general_protection+0x144/0x210
[ 25.316693] ? asm_exc_general_protection+0x22/0x30
[ 25.316955] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 25.317235] ? __vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
[ 25.317555] vb2_core_create_bufs+0x5a0/0xce0 [videobuf2_common]
[ 25.317879] ? __vb2_queue_alloc+0xd00/0xd00 [videobuf2_common]
[ 25.318213] vb2_create_bufs+0x680/0x7f0 [videobuf2_v4l2]
[ 25.318506] ? __kasan_kmalloc+0x83/0x90
[ 25.318729] ? __kmalloc+0x5c/0x150
[ 25.318924] ? __video_do_ioctl+0x3a5/0xc20 [videodev]
[ 25.319223] ? __copy_timestamp+0x270/0x270 [videobuf2_v4l2]
[ 25.319532] ? v4l_sanitize_format+0x121/0x340 [videodev]
[ 25.319839] vb2_ioctl_create_bufs+0x280/0x440 [videobuf2_v4l2]
[ 25.320162] ? check_fmt+0x15/0x5e0 [videodev]
[ 25.320420] v4l_create_bufs+0xa8/0x150 [videodev]
[ 25.320693] __video_do_ioctl+0x8d0/0xc20 [videodev]
[ 25.320975] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
[ 25.321250] ? __might_fault+0x112/0x170
[ 25.321463] ? __might_fault+0x112/0x170
[ 25.321675] video_usercopy+0x48c/0xd00 [videodev]
[ 25.321949] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
[ 25.322228] ? v4l_enumstd+0x60/0x60 [videodev]
[ 25.322497] ? selinux_bprm_creds_for_exec+0xa90/0xa90
[ 25.322779] ? rseq_ip_fixup+0x304/0x480
[ 25.322995] ? __up_read+0x10b/0x750
[ 25.323201] ? rseq_get_rseq_cs+0x680/0x680
[ 25.323430] v4l2_ioctl+0x17f/0x1f0 [videodev]
[ 25.323689] __x64_sys_ioctl+0x127/0x190
[ 25.323905] do_syscall_64+0x35/0x80
[ 25.324105] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 25.324372] RIP: 0033:0x7fa524bf44eb
[ 25.324564] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b
04 25 28 00 00
[ 25.325533] RSP: 002b:00007ffc888efee0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 25.325933] RAX: ffffffffffffffda RBX: 00007ffc888f0350 RCX: 00007fa524bf44eb
[ 25.326314] RDX: 00007ffc888effb0 RSI: 00000000c100565c RDI: 0000000000000023
[ 25.326702] RBP: 00007ffc888f8550 R08: 0000000000000000 R09: 0000000000000001
[ 25.327081] R10: 0000000000000016 R11: 0000000000000246 R12: 0000000000000000
[ 25.327468] R13: 0000000000000001 R14: 00007ffc888f8010 R15: 00007ffc888f1790
[ 25.327852] </TASK>
[ 25.327979] Modules linked in: vivid videobuf2_dma_contig v4l2_tpg v4l2_dv_timings cec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev videobuf2_common mc rc_core
[ 25.328835] ---[ end trace 0000000000000000 ]---
[ 25.329083] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
[ 25.329434] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
0f 0b 4c 89 e8
[ 25.330417] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
[ 25.330812] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
[ 25.331194] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
[ 25.331594] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
[ 25.331978] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
[ 25.332360] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
[ 25.332746] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
[ 25.333170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 25.333486] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
[ 25.333861] Kernel panic - not syncing: Fatal exception
[ 25.334179] Kernel Offset: 0xbe00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 25.334748] Rebooting in 30 seconds..
I use the build scripts as described here:
https://lore.kernel.org/linux-media/18989016-6392-a77b-6cf7-1223c9161def@xs4all.nl/
I use this command to run the regression tests:
./build.sh -virtme -virtme-utils-path /usr/local/bin none delbuf
(delbuf is the name of my branch)
I don't really want to spend time reviewing this series until this is fixed...
Regards,
Hans
>
> changes in version 8:
> - Add V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS and new 'max_buffers' field in v4l2_create_buffers
> structure to report the maximum number of buffers that a queue could allocate.
> - Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS to indicate that a queue support
> DELETE_BUFS ioctl.
> - Make some test drivers use more than 32 buffers and DELETE_BUFS ioctl.
> - Fix remarks done by Hans
> - Move "media: core: Rework how create_buf index returned value is
> computed" patch to the top of the serie.
>
> changes in version 7:
> - Use a bitmap to know which entries are valid in queue bufs array.
> The number of buffers in the queue could must calculated from the
> bitmap so num_buffers becomes useless. This led to add quite few
> patches to remove it from all the drivers.
> Note: despiste my attention I may have miss some calls to
> num_buffers...
> - Split patches to make them more readable.
> - Run v4l2-compliance with additional delete-bufs tests.
> - Run ./test-media -kmemleak vivid and no more failures.
> Note: I had to remove USERPTR streaming test because they to much
> frequentely hit get_framevec bug. It is not related to my series
> since this happens all the time on master branch.
> - Fix Hans remarks on v6
>
> changes in version 6:
> - Get a patch per driver to use vb2_get_buffer() instead of directly access
> to queue buffers array.
> - Add lock in vb2_core_delete_buf()
> - Use vb2_buffer instead of index
> - Fix various comments
> - Change buffer index name to BUFFER_INDEX_MASK
> - Stop spamming kernel log with unbalanced counters
>
> changes in version 5:
> - Rework offset cookie encoding pattern is n ow the first patch of the
> serie.
> - Use static array instead of allocated one for postprocessor buffers.
>
> changes in version 4:
> - Stop using Xarray, instead let queues decide about their own maximum
> number of buffer and allocate bufs array given that value.
> - Rework offset cookie encoding pattern.
> - Change DELETE_BUF to DELETE_BUFS because it now usable for
> range of buffer to be symetrical of CREATE_BUFS.
> - Add fixes tags on couple of Verisilicon related patches.
> - Be smarter in Verisilicon postprocessor buffers management.
> - Rebase on top of v6.4
>
> changes in version 3:
> - Use Xarray API to store allocated video buffers.
> - No module parameter to limit the number of buffer per queue.
> - Use Xarray inside Verisilicon driver to store postprocessor buffers
> and remove VB2_MAX_FRAME limit.
> - Allow Versilicon driver to change of resolution while streaming
> - Various fixes the Verisilicon VP9 code to improve fluster score.
>
> changes in version 2:
> - Use a dynamic array and not a list to keep trace of allocated buffers.
> Not use IDR interface because it is marked as deprecated in kernel
> documentation.
> - Add a module parameter to limit the number of buffer per queue.
> - Add DELETE_BUF ioctl and m2m helpers.
>
> Regards,
> Benjamin
>
> Benjamin Gaignard (53):
> media: videobuf2: Rework offset 'cookie' encoding pattern
> media: videobuf2: Stop spamming kernel log with all queue counter
> media: videobuf2: Use vb2_buffer instead of index
> media: amphion: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: mediatek: jpeg: Use vb2_get_buffer() instead of directly access
> to buffers array
> media: mediatek: vdec: Remove useless loop
> media: sti: hva: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: visl: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: atomisp: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: dvb-core: Use vb2_get_buffer() instead of directly access to
> buffers array
> media: videobuf2: Access vb2_queue bufs array through helper functions
> media: videobuf2: Be more flexible on the number of queue stored
> buffers
> media: Report the maximum possible number of buffers for the queue
> media: test-drivers: vivid: Increase max supported buffers for capture
> queues
> media: test-drivers: vicodec: Increase max supported capture queue
> buffers
> media: verisilicon: Refactor postprocessor to store more buffers
> media: verisilicon: Store chroma and motion vectors offset
> media: verisilicon: g2: Use common helpers to compute chroma and mv
> offsets
> media: verisilicon: vp9: Allow to change resolution while streaming
> media: Remove duplicated index vs q->num_buffers check
> media: core: Add helper to get queue number of buffers
> media: dvb-core: Do not initialize twice queue num_buffer field
> media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed field
> media: video-i2c: Set min_buffers_needed to 2
> media: pci: cx18: Set correct value to min_buffers_needed field
> media: pci: dt3155: Remove useless check
> media: pci: netup_unidvb: Remove useless number of buffers check
> media: pci: tw68: Stop direct calls to queue num_buffers field
> media: pci: tw686x: Set min_buffers_needed to 3
> media: amphion: Stop direct calls to queue num_buffers field
> media: coda: Stop direct calls to queue num_buffers field
> media: mediatek: vcodec: Stop direct calls to queue num_buffers field
> media: nxp: Stop direct calls to queue num_buffers field
> media: renesas: Set min_buffers_needed to 16
> media: ti: Use queue min_buffers_needed field to set the min number of
> buffers
> media: verisilicon: Stop direct calls to queue num_buffers field
> media: test-drivers: Stop direct calls to queue num_buffers field
> media: usb: airspy: Set min_buffers_needed to 8
> media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
> media: usb: hackrf: Set min_buffers_needed to 8
> media: usb: usbtv: Set min_buffers_needed to 2
> media: atomisp: Stop direct calls to queue num_buffers field
> media: imx: Stop direct calls to queue num_buffers field
> media: meson: vdec: Stop direct calls to queue num_buffers field
> touchscreen: sur40: Stop direct calls to queue num_buffers field
> sample: v4l: Stop direct calls to queue num_buffers field
> media: cedrus: Stop direct calls to queue num_buffers field
> media: core: Rework how create_buf index returned value is computed
> media: core: Add bitmap manage bufs array entries
> media: core: Free range of buffers
> media: v4l2: Add DELETE_BUFS ioctl
> media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
> media: test-drivers: Use helper for DELETE_BUFS ioctl
>
> .../userspace-api/media/v4l/user-func.rst | 1 +
> .../media/v4l/vidioc-create-bufs.rst | 8 +-
> .../media/v4l/vidioc-delete-bufs.rst | 80 +++
> .../media/v4l/vidioc-reqbufs.rst | 2 +
> drivers/input/touchscreen/sur40.c | 5 +-
> .../media/common/videobuf2/videobuf2-core.c | 556 +++++++++++-------
> .../media/common/videobuf2/videobuf2-v4l2.c | 121 +++-
> drivers/media/dvb-core/dvb_vb2.c | 17 +-
> drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +-
> drivers/media/i2c/video-i2c.c | 5 +-
> drivers/media/pci/cx18/cx18-streams.c | 13 +-
> drivers/media/pci/dt3155/dt3155.c | 2 -
> .../pci/netup_unidvb/netup_unidvb_core.c | 4 +-
> drivers/media/pci/tw68/tw68-video.c | 6 +-
> drivers/media/pci/tw686x/tw686x-video.c | 13 +-
> drivers/media/platform/amphion/vpu_dbg.c | 30 +-
> drivers/media/platform/amphion/vpu_v4l2.c | 4 +-
> .../media/platform/chips-media/coda-common.c | 2 +-
> .../platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +-
> .../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 +-
> .../mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
> drivers/media/platform/nxp/imx7-media-csi.c | 7 +-
> drivers/media/platform/renesas/rcar_drif.c | 8 +-
> drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +-
> .../media/platform/ti/am437x/am437x-vpfe.c | 7 +-
> drivers/media/platform/ti/cal/cal-video.c | 5 +-
> .../media/platform/ti/davinci/vpif_capture.c | 5 +-
> .../media/platform/ti/davinci/vpif_display.c | 5 +-
> drivers/media/platform/ti/omap/omap_vout.c | 5 +-
> drivers/media/platform/verisilicon/hantro.h | 9 +-
> .../media/platform/verisilicon/hantro_drv.c | 5 +-
> .../media/platform/verisilicon/hantro_g2.c | 14 +
> .../platform/verisilicon/hantro_g2_hevc_dec.c | 18 +-
> .../platform/verisilicon/hantro_g2_vp9_dec.c | 28 +-
> .../media/platform/verisilicon/hantro_hw.h | 7 +-
> .../platform/verisilicon/hantro_postproc.c | 93 ++-
> .../media/platform/verisilicon/hantro_v4l2.c | 27 +-
> .../media/test-drivers/vicodec/vicodec-core.c | 3 +
> drivers/media/test-drivers/vim2m.c | 2 +
> .../media/test-drivers/vimc/vimc-capture.c | 2 +
> drivers/media/test-drivers/visl/visl-dec.c | 32 +-
> drivers/media/test-drivers/visl/visl-video.c | 2 +
> drivers/media/test-drivers/vivid/vivid-core.c | 14 +
> .../media/test-drivers/vivid/vivid-meta-cap.c | 3 -
> .../media/test-drivers/vivid/vivid-meta-out.c | 5 +-
> .../test-drivers/vivid/vivid-touch-cap.c | 5 +-
> .../media/test-drivers/vivid/vivid-vbi-cap.c | 5 +-
> .../media/test-drivers/vivid/vivid-vbi-out.c | 5 +-
> .../media/test-drivers/vivid/vivid-vid-cap.c | 5 +-
> .../media/test-drivers/vivid/vivid-vid-out.c | 5 +-
> drivers/media/usb/airspy/airspy.c | 9 +-
> drivers/media/usb/cx231xx/cx231xx-417.c | 4 +-
> drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-
> drivers/media/usb/hackrf/hackrf.c | 9 +-
> drivers/media/usb/usbtv/usbtv-video.c | 3 +-
> drivers/media/v4l2-core/v4l2-dev.c | 1 +
> drivers/media/v4l2-core/v4l2-ioctl.c | 21 +-
> drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +
> .../staging/media/atomisp/pci/atomisp_ioctl.c | 4 +-
> drivers/staging/media/imx/imx-media-capture.c | 7 +-
> drivers/staging/media/meson/vdec/vdec.c | 13 +-
> .../staging/media/sunxi/cedrus/cedrus_h264.c | 8 +-
> .../staging/media/sunxi/cedrus/cedrus_h265.c | 9 +-
> include/media/v4l2-ioctl.h | 4 +
> include/media/v4l2-mem2mem.h | 12 +
> include/media/videobuf2-core.h | 65 +-
> include/media/videobuf2-v4l2.h | 13 +
> include/uapi/linux/videodev2.h | 24 +-
> samples/v4l/v4l2-pci-skeleton.c | 5 +-
> 69 files changed, 969 insertions(+), 502 deletions(-)
> create mode 100644 Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
>
_______________________________________________
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^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 00/53] Add DELETE_BUF ioctl
2023-09-28 13:04 ` Hans Verkuil
(?)
@ 2023-09-28 13:16 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-28 13:16 UTC (permalink / raw)
To: Hans Verkuil, mchehab, tfiga, m.szyprowski, ming.qian, ezequiel,
p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
Le 28/09/2023 à 15:04, Hans Verkuil a écrit :
> Hi Benjamin,
>
> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>> Unlike when resolution change on keyframes, dynamic resolution change
>> on inter frames doesn't allow to do a stream off/on sequence because
>> it is need to keep all previous references alive to decode inter frames.
>> This constraint have two main problems:
>> - more memory consumption.
>> - more buffers in use.
>> To solve these issue this series introduce DELETE_BUFS ioctl and remove
>> the 32 buffers limit per queue.
>>
>> VP9 conformance tests using fluster give a score of 210/305.
>> The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
>> but require to use postprocessor.
>>
>> Kernel branch is available here:
>> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
>>
>> GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
>> change is here:
>> https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
> I applied patches 1-46 on top of staging and applied patch 1/2 of v4l-utils. I chose
> 1-46 since those would be the first batch to be merged.
>
> I had to apply a small patch on top, since amphion was still using max_allowed_buffers:
>
> https://git.linuxtv.org/hverkuil/media_tree.git/commit/?h=delbuf&id=fce79aa0239a3a4e5c7634b9b7ffc356057b70b4
>
> With that change everything compiled cleanly.
>
> But running the regression tests (test-media script) failed with a kernel oops:
>
> Buffer ioctls (Input 0):
> fail: v4l2-test-buffers.cpp(611): q.reqbufs(node, 1)
> test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
> [ 25.309343] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN
> [ 25.310067] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
> [ 25.310471] CPU: 0 PID: 187 Comm: v4l2-compliance Not tainted 6.6.0-rc3+ #1
> [ 25.310837] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
> [ 25.311334] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
> [ 25.311688] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
> 0f 0b 4c 89 e8
> [ 25.312670] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
> [ 25.312948] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
> [ 25.313331] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
> [ 25.313708] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
> [ 25.314097] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
> [ 25.314470] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
> [ 25.314854] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
> [ 25.315281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 25.315594] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
> [ 25.315982] Call Trace:
> [ 25.316122] <TASK>
> [ 25.316243] ? die_addr+0x37/0xa0
> [ 25.316433] ? exc_general_protection+0x144/0x210
> [ 25.316693] ? asm_exc_general_protection+0x22/0x30
> [ 25.316955] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
> [ 25.317235] ? __vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
> [ 25.317555] vb2_core_create_bufs+0x5a0/0xce0 [videobuf2_common]
> [ 25.317879] ? __vb2_queue_alloc+0xd00/0xd00 [videobuf2_common]
> [ 25.318213] vb2_create_bufs+0x680/0x7f0 [videobuf2_v4l2]
> [ 25.318506] ? __kasan_kmalloc+0x83/0x90
> [ 25.318729] ? __kmalloc+0x5c/0x150
> [ 25.318924] ? __video_do_ioctl+0x3a5/0xc20 [videodev]
> [ 25.319223] ? __copy_timestamp+0x270/0x270 [videobuf2_v4l2]
> [ 25.319532] ? v4l_sanitize_format+0x121/0x340 [videodev]
> [ 25.319839] vb2_ioctl_create_bufs+0x280/0x440 [videobuf2_v4l2]
> [ 25.320162] ? check_fmt+0x15/0x5e0 [videodev]
> [ 25.320420] v4l_create_bufs+0xa8/0x150 [videodev]
> [ 25.320693] __video_do_ioctl+0x8d0/0xc20 [videodev]
> [ 25.320975] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
> [ 25.321250] ? __might_fault+0x112/0x170
> [ 25.321463] ? __might_fault+0x112/0x170
> [ 25.321675] video_usercopy+0x48c/0xd00 [videodev]
> [ 25.321949] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
> [ 25.322228] ? v4l_enumstd+0x60/0x60 [videodev]
> [ 25.322497] ? selinux_bprm_creds_for_exec+0xa90/0xa90
> [ 25.322779] ? rseq_ip_fixup+0x304/0x480
> [ 25.322995] ? __up_read+0x10b/0x750
> [ 25.323201] ? rseq_get_rseq_cs+0x680/0x680
> [ 25.323430] v4l2_ioctl+0x17f/0x1f0 [videodev]
> [ 25.323689] __x64_sys_ioctl+0x127/0x190
> [ 25.323905] do_syscall_64+0x35/0x80
> [ 25.324105] entry_SYSCALL_64_after_hwframe+0x46/0xb0
> [ 25.324372] RIP: 0033:0x7fa524bf44eb
> [ 25.324564] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b
> 04 25 28 00 00
> [ 25.325533] RSP: 002b:00007ffc888efee0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
> [ 25.325933] RAX: ffffffffffffffda RBX: 00007ffc888f0350 RCX: 00007fa524bf44eb
> [ 25.326314] RDX: 00007ffc888effb0 RSI: 00000000c100565c RDI: 0000000000000023
> [ 25.326702] RBP: 00007ffc888f8550 R08: 0000000000000000 R09: 0000000000000001
> [ 25.327081] R10: 0000000000000016 R11: 0000000000000246 R12: 0000000000000000
> [ 25.327468] R13: 0000000000000001 R14: 00007ffc888f8010 R15: 00007ffc888f1790
> [ 25.327852] </TASK>
> [ 25.327979] Modules linked in: vivid videobuf2_dma_contig v4l2_tpg v4l2_dv_timings cec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev videobuf2_common mc rc_core
> [ 25.328835] ---[ end trace 0000000000000000 ]---
> [ 25.329083] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
> [ 25.329434] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
> 0f 0b 4c 89 e8
> [ 25.330417] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
> [ 25.330812] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
> [ 25.331194] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
> [ 25.331594] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
> [ 25.331978] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
> [ 25.332360] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
> [ 25.332746] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
> [ 25.333170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 25.333486] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
> [ 25.333861] Kernel panic - not syncing: Fatal exception
> [ 25.334179] Kernel Offset: 0xbe00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
> [ 25.334748] Rebooting in 30 seconds..
>
> I use the build scripts as described here:
>
> https://lore.kernel.org/linux-media/18989016-6392-a77b-6cf7-1223c9161def@xs4all.nl/
>
> I use this command to run the regression tests:
>
> ./build.sh -virtme -virtme-utils-path /usr/local/bin none delbuf
>
> (delbuf is the name of my branch)
>
> I don't really want to spend time reviewing this series until this is fixed...
Yes that make sense.
It will work on it and let you now when I had fix it.
Regards,
Benjamin
>
> Regards,
>
> Hans
>
>> changes in version 8:
>> - Add V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS and new 'max_buffers' field in v4l2_create_buffers
>> structure to report the maximum number of buffers that a queue could allocate.
>> - Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS to indicate that a queue support
>> DELETE_BUFS ioctl.
>> - Make some test drivers use more than 32 buffers and DELETE_BUFS ioctl.
>> - Fix remarks done by Hans
>> - Move "media: core: Rework how create_buf index returned value is
>> computed" patch to the top of the serie.
>>
>> changes in version 7:
>> - Use a bitmap to know which entries are valid in queue bufs array.
>> The number of buffers in the queue could must calculated from the
>> bitmap so num_buffers becomes useless. This led to add quite few
>> patches to remove it from all the drivers.
>> Note: despiste my attention I may have miss some calls to
>> num_buffers...
>> - Split patches to make them more readable.
>> - Run v4l2-compliance with additional delete-bufs tests.
>> - Run ./test-media -kmemleak vivid and no more failures.
>> Note: I had to remove USERPTR streaming test because they to much
>> frequentely hit get_framevec bug. It is not related to my series
>> since this happens all the time on master branch.
>> - Fix Hans remarks on v6
>>
>> changes in version 6:
>> - Get a patch per driver to use vb2_get_buffer() instead of directly access
>> to queue buffers array.
>> - Add lock in vb2_core_delete_buf()
>> - Use vb2_buffer instead of index
>> - Fix various comments
>> - Change buffer index name to BUFFER_INDEX_MASK
>> - Stop spamming kernel log with unbalanced counters
>>
>> changes in version 5:
>> - Rework offset cookie encoding pattern is n ow the first patch of the
>> serie.
>> - Use static array instead of allocated one for postprocessor buffers.
>>
>> changes in version 4:
>> - Stop using Xarray, instead let queues decide about their own maximum
>> number of buffer and allocate bufs array given that value.
>> - Rework offset cookie encoding pattern.
>> - Change DELETE_BUF to DELETE_BUFS because it now usable for
>> range of buffer to be symetrical of CREATE_BUFS.
>> - Add fixes tags on couple of Verisilicon related patches.
>> - Be smarter in Verisilicon postprocessor buffers management.
>> - Rebase on top of v6.4
>>
>> changes in version 3:
>> - Use Xarray API to store allocated video buffers.
>> - No module parameter to limit the number of buffer per queue.
>> - Use Xarray inside Verisilicon driver to store postprocessor buffers
>> and remove VB2_MAX_FRAME limit.
>> - Allow Versilicon driver to change of resolution while streaming
>> - Various fixes the Verisilicon VP9 code to improve fluster score.
>>
>> changes in version 2:
>> - Use a dynamic array and not a list to keep trace of allocated buffers.
>> Not use IDR interface because it is marked as deprecated in kernel
>> documentation.
>> - Add a module parameter to limit the number of buffer per queue.
>> - Add DELETE_BUF ioctl and m2m helpers.
>>
>> Regards,
>> Benjamin
>>
>> Benjamin Gaignard (53):
>> media: videobuf2: Rework offset 'cookie' encoding pattern
>> media: videobuf2: Stop spamming kernel log with all queue counter
>> media: videobuf2: Use vb2_buffer instead of index
>> media: amphion: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: mediatek: jpeg: Use vb2_get_buffer() instead of directly access
>> to buffers array
>> media: mediatek: vdec: Remove useless loop
>> media: sti: hva: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: visl: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: atomisp: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: dvb-core: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: videobuf2: Access vb2_queue bufs array through helper functions
>> media: videobuf2: Be more flexible on the number of queue stored
>> buffers
>> media: Report the maximum possible number of buffers for the queue
>> media: test-drivers: vivid: Increase max supported buffers for capture
>> queues
>> media: test-drivers: vicodec: Increase max supported capture queue
>> buffers
>> media: verisilicon: Refactor postprocessor to store more buffers
>> media: verisilicon: Store chroma and motion vectors offset
>> media: verisilicon: g2: Use common helpers to compute chroma and mv
>> offsets
>> media: verisilicon: vp9: Allow to change resolution while streaming
>> media: Remove duplicated index vs q->num_buffers check
>> media: core: Add helper to get queue number of buffers
>> media: dvb-core: Do not initialize twice queue num_buffer field
>> media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed field
>> media: video-i2c: Set min_buffers_needed to 2
>> media: pci: cx18: Set correct value to min_buffers_needed field
>> media: pci: dt3155: Remove useless check
>> media: pci: netup_unidvb: Remove useless number of buffers check
>> media: pci: tw68: Stop direct calls to queue num_buffers field
>> media: pci: tw686x: Set min_buffers_needed to 3
>> media: amphion: Stop direct calls to queue num_buffers field
>> media: coda: Stop direct calls to queue num_buffers field
>> media: mediatek: vcodec: Stop direct calls to queue num_buffers field
>> media: nxp: Stop direct calls to queue num_buffers field
>> media: renesas: Set min_buffers_needed to 16
>> media: ti: Use queue min_buffers_needed field to set the min number of
>> buffers
>> media: verisilicon: Stop direct calls to queue num_buffers field
>> media: test-drivers: Stop direct calls to queue num_buffers field
>> media: usb: airspy: Set min_buffers_needed to 8
>> media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
>> media: usb: hackrf: Set min_buffers_needed to 8
>> media: usb: usbtv: Set min_buffers_needed to 2
>> media: atomisp: Stop direct calls to queue num_buffers field
>> media: imx: Stop direct calls to queue num_buffers field
>> media: meson: vdec: Stop direct calls to queue num_buffers field
>> touchscreen: sur40: Stop direct calls to queue num_buffers field
>> sample: v4l: Stop direct calls to queue num_buffers field
>> media: cedrus: Stop direct calls to queue num_buffers field
>> media: core: Rework how create_buf index returned value is computed
>> media: core: Add bitmap manage bufs array entries
>> media: core: Free range of buffers
>> media: v4l2: Add DELETE_BUFS ioctl
>> media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
>> media: test-drivers: Use helper for DELETE_BUFS ioctl
>>
>> .../userspace-api/media/v4l/user-func.rst | 1 +
>> .../media/v4l/vidioc-create-bufs.rst | 8 +-
>> .../media/v4l/vidioc-delete-bufs.rst | 80 +++
>> .../media/v4l/vidioc-reqbufs.rst | 2 +
>> drivers/input/touchscreen/sur40.c | 5 +-
>> .../media/common/videobuf2/videobuf2-core.c | 556 +++++++++++-------
>> .../media/common/videobuf2/videobuf2-v4l2.c | 121 +++-
>> drivers/media/dvb-core/dvb_vb2.c | 17 +-
>> drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +-
>> drivers/media/i2c/video-i2c.c | 5 +-
>> drivers/media/pci/cx18/cx18-streams.c | 13 +-
>> drivers/media/pci/dt3155/dt3155.c | 2 -
>> .../pci/netup_unidvb/netup_unidvb_core.c | 4 +-
>> drivers/media/pci/tw68/tw68-video.c | 6 +-
>> drivers/media/pci/tw686x/tw686x-video.c | 13 +-
>> drivers/media/platform/amphion/vpu_dbg.c | 30 +-
>> drivers/media/platform/amphion/vpu_v4l2.c | 4 +-
>> .../media/platform/chips-media/coda-common.c | 2 +-
>> .../platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +-
>> .../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 +-
>> .../mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
>> drivers/media/platform/nxp/imx7-media-csi.c | 7 +-
>> drivers/media/platform/renesas/rcar_drif.c | 8 +-
>> drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +-
>> .../media/platform/ti/am437x/am437x-vpfe.c | 7 +-
>> drivers/media/platform/ti/cal/cal-video.c | 5 +-
>> .../media/platform/ti/davinci/vpif_capture.c | 5 +-
>> .../media/platform/ti/davinci/vpif_display.c | 5 +-
>> drivers/media/platform/ti/omap/omap_vout.c | 5 +-
>> drivers/media/platform/verisilicon/hantro.h | 9 +-
>> .../media/platform/verisilicon/hantro_drv.c | 5 +-
>> .../media/platform/verisilicon/hantro_g2.c | 14 +
>> .../platform/verisilicon/hantro_g2_hevc_dec.c | 18 +-
>> .../platform/verisilicon/hantro_g2_vp9_dec.c | 28 +-
>> .../media/platform/verisilicon/hantro_hw.h | 7 +-
>> .../platform/verisilicon/hantro_postproc.c | 93 ++-
>> .../media/platform/verisilicon/hantro_v4l2.c | 27 +-
>> .../media/test-drivers/vicodec/vicodec-core.c | 3 +
>> drivers/media/test-drivers/vim2m.c | 2 +
>> .../media/test-drivers/vimc/vimc-capture.c | 2 +
>> drivers/media/test-drivers/visl/visl-dec.c | 32 +-
>> drivers/media/test-drivers/visl/visl-video.c | 2 +
>> drivers/media/test-drivers/vivid/vivid-core.c | 14 +
>> .../media/test-drivers/vivid/vivid-meta-cap.c | 3 -
>> .../media/test-drivers/vivid/vivid-meta-out.c | 5 +-
>> .../test-drivers/vivid/vivid-touch-cap.c | 5 +-
>> .../media/test-drivers/vivid/vivid-vbi-cap.c | 5 +-
>> .../media/test-drivers/vivid/vivid-vbi-out.c | 5 +-
>> .../media/test-drivers/vivid/vivid-vid-cap.c | 5 +-
>> .../media/test-drivers/vivid/vivid-vid-out.c | 5 +-
>> drivers/media/usb/airspy/airspy.c | 9 +-
>> drivers/media/usb/cx231xx/cx231xx-417.c | 4 +-
>> drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-
>> drivers/media/usb/hackrf/hackrf.c | 9 +-
>> drivers/media/usb/usbtv/usbtv-video.c | 3 +-
>> drivers/media/v4l2-core/v4l2-dev.c | 1 +
>> drivers/media/v4l2-core/v4l2-ioctl.c | 21 +-
>> drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +
>> .../staging/media/atomisp/pci/atomisp_ioctl.c | 4 +-
>> drivers/staging/media/imx/imx-media-capture.c | 7 +-
>> drivers/staging/media/meson/vdec/vdec.c | 13 +-
>> .../staging/media/sunxi/cedrus/cedrus_h264.c | 8 +-
>> .../staging/media/sunxi/cedrus/cedrus_h265.c | 9 +-
>> include/media/v4l2-ioctl.h | 4 +
>> include/media/v4l2-mem2mem.h | 12 +
>> include/media/videobuf2-core.h | 65 +-
>> include/media/videobuf2-v4l2.h | 13 +
>> include/uapi/linux/videodev2.h | 24 +-
>> samples/v4l/v4l2-pci-skeleton.c | 5 +-
>> 69 files changed, 969 insertions(+), 502 deletions(-)
>> create mode 100644 Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
>>
> _______________________________________________
> Kernel mailing list -- kernel@mailman.collabora.com
> To unsubscribe send an email to kernel-leave@mailman.collabora.com
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 00/53] Add DELETE_BUF ioctl
@ 2023-09-28 13:16 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-28 13:16 UTC (permalink / raw)
To: Hans Verkuil, mchehab, tfiga, m.szyprowski, ming.qian, ezequiel,
p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
Le 28/09/2023 à 15:04, Hans Verkuil a écrit :
> Hi Benjamin,
>
> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>> Unlike when resolution change on keyframes, dynamic resolution change
>> on inter frames doesn't allow to do a stream off/on sequence because
>> it is need to keep all previous references alive to decode inter frames.
>> This constraint have two main problems:
>> - more memory consumption.
>> - more buffers in use.
>> To solve these issue this series introduce DELETE_BUFS ioctl and remove
>> the 32 buffers limit per queue.
>>
>> VP9 conformance tests using fluster give a score of 210/305.
>> The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
>> but require to use postprocessor.
>>
>> Kernel branch is available here:
>> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
>>
>> GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
>> change is here:
>> https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
> I applied patches 1-46 on top of staging and applied patch 1/2 of v4l-utils. I chose
> 1-46 since those would be the first batch to be merged.
>
> I had to apply a small patch on top, since amphion was still using max_allowed_buffers:
>
> https://git.linuxtv.org/hverkuil/media_tree.git/commit/?h=delbuf&id=fce79aa0239a3a4e5c7634b9b7ffc356057b70b4
>
> With that change everything compiled cleanly.
>
> But running the regression tests (test-media script) failed with a kernel oops:
>
> Buffer ioctls (Input 0):
> fail: v4l2-test-buffers.cpp(611): q.reqbufs(node, 1)
> test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
> [ 25.309343] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN
> [ 25.310067] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
> [ 25.310471] CPU: 0 PID: 187 Comm: v4l2-compliance Not tainted 6.6.0-rc3+ #1
> [ 25.310837] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
> [ 25.311334] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
> [ 25.311688] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
> 0f 0b 4c 89 e8
> [ 25.312670] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
> [ 25.312948] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
> [ 25.313331] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
> [ 25.313708] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
> [ 25.314097] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
> [ 25.314470] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
> [ 25.314854] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
> [ 25.315281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 25.315594] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
> [ 25.315982] Call Trace:
> [ 25.316122] <TASK>
> [ 25.316243] ? die_addr+0x37/0xa0
> [ 25.316433] ? exc_general_protection+0x144/0x210
> [ 25.316693] ? asm_exc_general_protection+0x22/0x30
> [ 25.316955] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
> [ 25.317235] ? __vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
> [ 25.317555] vb2_core_create_bufs+0x5a0/0xce0 [videobuf2_common]
> [ 25.317879] ? __vb2_queue_alloc+0xd00/0xd00 [videobuf2_common]
> [ 25.318213] vb2_create_bufs+0x680/0x7f0 [videobuf2_v4l2]
> [ 25.318506] ? __kasan_kmalloc+0x83/0x90
> [ 25.318729] ? __kmalloc+0x5c/0x150
> [ 25.318924] ? __video_do_ioctl+0x3a5/0xc20 [videodev]
> [ 25.319223] ? __copy_timestamp+0x270/0x270 [videobuf2_v4l2]
> [ 25.319532] ? v4l_sanitize_format+0x121/0x340 [videodev]
> [ 25.319839] vb2_ioctl_create_bufs+0x280/0x440 [videobuf2_v4l2]
> [ 25.320162] ? check_fmt+0x15/0x5e0 [videodev]
> [ 25.320420] v4l_create_bufs+0xa8/0x150 [videodev]
> [ 25.320693] __video_do_ioctl+0x8d0/0xc20 [videodev]
> [ 25.320975] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
> [ 25.321250] ? __might_fault+0x112/0x170
> [ 25.321463] ? __might_fault+0x112/0x170
> [ 25.321675] video_usercopy+0x48c/0xd00 [videodev]
> [ 25.321949] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
> [ 25.322228] ? v4l_enumstd+0x60/0x60 [videodev]
> [ 25.322497] ? selinux_bprm_creds_for_exec+0xa90/0xa90
> [ 25.322779] ? rseq_ip_fixup+0x304/0x480
> [ 25.322995] ? __up_read+0x10b/0x750
> [ 25.323201] ? rseq_get_rseq_cs+0x680/0x680
> [ 25.323430] v4l2_ioctl+0x17f/0x1f0 [videodev]
> [ 25.323689] __x64_sys_ioctl+0x127/0x190
> [ 25.323905] do_syscall_64+0x35/0x80
> [ 25.324105] entry_SYSCALL_64_after_hwframe+0x46/0xb0
> [ 25.324372] RIP: 0033:0x7fa524bf44eb
> [ 25.324564] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b
> 04 25 28 00 00
> [ 25.325533] RSP: 002b:00007ffc888efee0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
> [ 25.325933] RAX: ffffffffffffffda RBX: 00007ffc888f0350 RCX: 00007fa524bf44eb
> [ 25.326314] RDX: 00007ffc888effb0 RSI: 00000000c100565c RDI: 0000000000000023
> [ 25.326702] RBP: 00007ffc888f8550 R08: 0000000000000000 R09: 0000000000000001
> [ 25.327081] R10: 0000000000000016 R11: 0000000000000246 R12: 0000000000000000
> [ 25.327468] R13: 0000000000000001 R14: 00007ffc888f8010 R15: 00007ffc888f1790
> [ 25.327852] </TASK>
> [ 25.327979] Modules linked in: vivid videobuf2_dma_contig v4l2_tpg v4l2_dv_timings cec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev videobuf2_common mc rc_core
> [ 25.328835] ---[ end trace 0000000000000000 ]---
> [ 25.329083] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
> [ 25.329434] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
> 0f 0b 4c 89 e8
> [ 25.330417] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
> [ 25.330812] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
> [ 25.331194] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
> [ 25.331594] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
> [ 25.331978] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
> [ 25.332360] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
> [ 25.332746] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
> [ 25.333170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 25.333486] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
> [ 25.333861] Kernel panic - not syncing: Fatal exception
> [ 25.334179] Kernel Offset: 0xbe00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
> [ 25.334748] Rebooting in 30 seconds..
>
> I use the build scripts as described here:
>
> https://lore.kernel.org/linux-media/18989016-6392-a77b-6cf7-1223c9161def@xs4all.nl/
>
> I use this command to run the regression tests:
>
> ./build.sh -virtme -virtme-utils-path /usr/local/bin none delbuf
>
> (delbuf is the name of my branch)
>
> I don't really want to spend time reviewing this series until this is fixed...
Yes that make sense.
It will work on it and let you now when I had fix it.
Regards,
Benjamin
>
> Regards,
>
> Hans
>
>> changes in version 8:
>> - Add V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS and new 'max_buffers' field in v4l2_create_buffers
>> structure to report the maximum number of buffers that a queue could allocate.
>> - Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS to indicate that a queue support
>> DELETE_BUFS ioctl.
>> - Make some test drivers use more than 32 buffers and DELETE_BUFS ioctl.
>> - Fix remarks done by Hans
>> - Move "media: core: Rework how create_buf index returned value is
>> computed" patch to the top of the serie.
>>
>> changes in version 7:
>> - Use a bitmap to know which entries are valid in queue bufs array.
>> The number of buffers in the queue could must calculated from the
>> bitmap so num_buffers becomes useless. This led to add quite few
>> patches to remove it from all the drivers.
>> Note: despiste my attention I may have miss some calls to
>> num_buffers...
>> - Split patches to make them more readable.
>> - Run v4l2-compliance with additional delete-bufs tests.
>> - Run ./test-media -kmemleak vivid and no more failures.
>> Note: I had to remove USERPTR streaming test because they to much
>> frequentely hit get_framevec bug. It is not related to my series
>> since this happens all the time on master branch.
>> - Fix Hans remarks on v6
>>
>> changes in version 6:
>> - Get a patch per driver to use vb2_get_buffer() instead of directly access
>> to queue buffers array.
>> - Add lock in vb2_core_delete_buf()
>> - Use vb2_buffer instead of index
>> - Fix various comments
>> - Change buffer index name to BUFFER_INDEX_MASK
>> - Stop spamming kernel log with unbalanced counters
>>
>> changes in version 5:
>> - Rework offset cookie encoding pattern is n ow the first patch of the
>> serie.
>> - Use static array instead of allocated one for postprocessor buffers.
>>
>> changes in version 4:
>> - Stop using Xarray, instead let queues decide about their own maximum
>> number of buffer and allocate bufs array given that value.
>> - Rework offset cookie encoding pattern.
>> - Change DELETE_BUF to DELETE_BUFS because it now usable for
>> range of buffer to be symetrical of CREATE_BUFS.
>> - Add fixes tags on couple of Verisilicon related patches.
>> - Be smarter in Verisilicon postprocessor buffers management.
>> - Rebase on top of v6.4
>>
>> changes in version 3:
>> - Use Xarray API to store allocated video buffers.
>> - No module parameter to limit the number of buffer per queue.
>> - Use Xarray inside Verisilicon driver to store postprocessor buffers
>> and remove VB2_MAX_FRAME limit.
>> - Allow Versilicon driver to change of resolution while streaming
>> - Various fixes the Verisilicon VP9 code to improve fluster score.
>>
>> changes in version 2:
>> - Use a dynamic array and not a list to keep trace of allocated buffers.
>> Not use IDR interface because it is marked as deprecated in kernel
>> documentation.
>> - Add a module parameter to limit the number of buffer per queue.
>> - Add DELETE_BUF ioctl and m2m helpers.
>>
>> Regards,
>> Benjamin
>>
>> Benjamin Gaignard (53):
>> media: videobuf2: Rework offset 'cookie' encoding pattern
>> media: videobuf2: Stop spamming kernel log with all queue counter
>> media: videobuf2: Use vb2_buffer instead of index
>> media: amphion: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: mediatek: jpeg: Use vb2_get_buffer() instead of directly access
>> to buffers array
>> media: mediatek: vdec: Remove useless loop
>> media: sti: hva: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: visl: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: atomisp: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: dvb-core: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: videobuf2: Access vb2_queue bufs array through helper functions
>> media: videobuf2: Be more flexible on the number of queue stored
>> buffers
>> media: Report the maximum possible number of buffers for the queue
>> media: test-drivers: vivid: Increase max supported buffers for capture
>> queues
>> media: test-drivers: vicodec: Increase max supported capture queue
>> buffers
>> media: verisilicon: Refactor postprocessor to store more buffers
>> media: verisilicon: Store chroma and motion vectors offset
>> media: verisilicon: g2: Use common helpers to compute chroma and mv
>> offsets
>> media: verisilicon: vp9: Allow to change resolution while streaming
>> media: Remove duplicated index vs q->num_buffers check
>> media: core: Add helper to get queue number of buffers
>> media: dvb-core: Do not initialize twice queue num_buffer field
>> media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed field
>> media: video-i2c: Set min_buffers_needed to 2
>> media: pci: cx18: Set correct value to min_buffers_needed field
>> media: pci: dt3155: Remove useless check
>> media: pci: netup_unidvb: Remove useless number of buffers check
>> media: pci: tw68: Stop direct calls to queue num_buffers field
>> media: pci: tw686x: Set min_buffers_needed to 3
>> media: amphion: Stop direct calls to queue num_buffers field
>> media: coda: Stop direct calls to queue num_buffers field
>> media: mediatek: vcodec: Stop direct calls to queue num_buffers field
>> media: nxp: Stop direct calls to queue num_buffers field
>> media: renesas: Set min_buffers_needed to 16
>> media: ti: Use queue min_buffers_needed field to set the min number of
>> buffers
>> media: verisilicon: Stop direct calls to queue num_buffers field
>> media: test-drivers: Stop direct calls to queue num_buffers field
>> media: usb: airspy: Set min_buffers_needed to 8
>> media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
>> media: usb: hackrf: Set min_buffers_needed to 8
>> media: usb: usbtv: Set min_buffers_needed to 2
>> media: atomisp: Stop direct calls to queue num_buffers field
>> media: imx: Stop direct calls to queue num_buffers field
>> media: meson: vdec: Stop direct calls to queue num_buffers field
>> touchscreen: sur40: Stop direct calls to queue num_buffers field
>> sample: v4l: Stop direct calls to queue num_buffers field
>> media: cedrus: Stop direct calls to queue num_buffers field
>> media: core: Rework how create_buf index returned value is computed
>> media: core: Add bitmap manage bufs array entries
>> media: core: Free range of buffers
>> media: v4l2: Add DELETE_BUFS ioctl
>> media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
>> media: test-drivers: Use helper for DELETE_BUFS ioctl
>>
>> .../userspace-api/media/v4l/user-func.rst | 1 +
>> .../media/v4l/vidioc-create-bufs.rst | 8 +-
>> .../media/v4l/vidioc-delete-bufs.rst | 80 +++
>> .../media/v4l/vidioc-reqbufs.rst | 2 +
>> drivers/input/touchscreen/sur40.c | 5 +-
>> .../media/common/videobuf2/videobuf2-core.c | 556 +++++++++++-------
>> .../media/common/videobuf2/videobuf2-v4l2.c | 121 +++-
>> drivers/media/dvb-core/dvb_vb2.c | 17 +-
>> drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +-
>> drivers/media/i2c/video-i2c.c | 5 +-
>> drivers/media/pci/cx18/cx18-streams.c | 13 +-
>> drivers/media/pci/dt3155/dt3155.c | 2 -
>> .../pci/netup_unidvb/netup_unidvb_core.c | 4 +-
>> drivers/media/pci/tw68/tw68-video.c | 6 +-
>> drivers/media/pci/tw686x/tw686x-video.c | 13 +-
>> drivers/media/platform/amphion/vpu_dbg.c | 30 +-
>> drivers/media/platform/amphion/vpu_v4l2.c | 4 +-
>> .../media/platform/chips-media/coda-common.c | 2 +-
>> .../platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +-
>> .../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 +-
>> .../mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
>> drivers/media/platform/nxp/imx7-media-csi.c | 7 +-
>> drivers/media/platform/renesas/rcar_drif.c | 8 +-
>> drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +-
>> .../media/platform/ti/am437x/am437x-vpfe.c | 7 +-
>> drivers/media/platform/ti/cal/cal-video.c | 5 +-
>> .../media/platform/ti/davinci/vpif_capture.c | 5 +-
>> .../media/platform/ti/davinci/vpif_display.c | 5 +-
>> drivers/media/platform/ti/omap/omap_vout.c | 5 +-
>> drivers/media/platform/verisilicon/hantro.h | 9 +-
>> .../media/platform/verisilicon/hantro_drv.c | 5 +-
>> .../media/platform/verisilicon/hantro_g2.c | 14 +
>> .../platform/verisilicon/hantro_g2_hevc_dec.c | 18 +-
>> .../platform/verisilicon/hantro_g2_vp9_dec.c | 28 +-
>> .../media/platform/verisilicon/hantro_hw.h | 7 +-
>> .../platform/verisilicon/hantro_postproc.c | 93 ++-
>> .../media/platform/verisilicon/hantro_v4l2.c | 27 +-
>> .../media/test-drivers/vicodec/vicodec-core.c | 3 +
>> drivers/media/test-drivers/vim2m.c | 2 +
>> .../media/test-drivers/vimc/vimc-capture.c | 2 +
>> drivers/media/test-drivers/visl/visl-dec.c | 32 +-
>> drivers/media/test-drivers/visl/visl-video.c | 2 +
>> drivers/media/test-drivers/vivid/vivid-core.c | 14 +
>> .../media/test-drivers/vivid/vivid-meta-cap.c | 3 -
>> .../media/test-drivers/vivid/vivid-meta-out.c | 5 +-
>> .../test-drivers/vivid/vivid-touch-cap.c | 5 +-
>> .../media/test-drivers/vivid/vivid-vbi-cap.c | 5 +-
>> .../media/test-drivers/vivid/vivid-vbi-out.c | 5 +-
>> .../media/test-drivers/vivid/vivid-vid-cap.c | 5 +-
>> .../media/test-drivers/vivid/vivid-vid-out.c | 5 +-
>> drivers/media/usb/airspy/airspy.c | 9 +-
>> drivers/media/usb/cx231xx/cx231xx-417.c | 4 +-
>> drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-
>> drivers/media/usb/hackrf/hackrf.c | 9 +-
>> drivers/media/usb/usbtv/usbtv-video.c | 3 +-
>> drivers/media/v4l2-core/v4l2-dev.c | 1 +
>> drivers/media/v4l2-core/v4l2-ioctl.c | 21 +-
>> drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +
>> .../staging/media/atomisp/pci/atomisp_ioctl.c | 4 +-
>> drivers/staging/media/imx/imx-media-capture.c | 7 +-
>> drivers/staging/media/meson/vdec/vdec.c | 13 +-
>> .../staging/media/sunxi/cedrus/cedrus_h264.c | 8 +-
>> .../staging/media/sunxi/cedrus/cedrus_h265.c | 9 +-
>> include/media/v4l2-ioctl.h | 4 +
>> include/media/v4l2-mem2mem.h | 12 +
>> include/media/videobuf2-core.h | 65 +-
>> include/media/videobuf2-v4l2.h | 13 +
>> include/uapi/linux/videodev2.h | 24 +-
>> samples/v4l/v4l2-pci-skeleton.c | 5 +-
>> 69 files changed, 969 insertions(+), 502 deletions(-)
>> create mode 100644 Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
>>
> _______________________________________________
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^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 00/53] Add DELETE_BUF ioctl
@ 2023-09-28 13:16 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-28 13:16 UTC (permalink / raw)
To: Hans Verkuil, mchehab, tfiga, m.szyprowski, ming.qian, ezequiel,
p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
Le 28/09/2023 à 15:04, Hans Verkuil a écrit :
> Hi Benjamin,
>
> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>> Unlike when resolution change on keyframes, dynamic resolution change
>> on inter frames doesn't allow to do a stream off/on sequence because
>> it is need to keep all previous references alive to decode inter frames.
>> This constraint have two main problems:
>> - more memory consumption.
>> - more buffers in use.
>> To solve these issue this series introduce DELETE_BUFS ioctl and remove
>> the 32 buffers limit per queue.
>>
>> VP9 conformance tests using fluster give a score of 210/305.
>> The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
>> but require to use postprocessor.
>>
>> Kernel branch is available here:
>> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
>>
>> GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
>> change is here:
>> https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
> I applied patches 1-46 on top of staging and applied patch 1/2 of v4l-utils. I chose
> 1-46 since those would be the first batch to be merged.
>
> I had to apply a small patch on top, since amphion was still using max_allowed_buffers:
>
> https://git.linuxtv.org/hverkuil/media_tree.git/commit/?h=delbuf&id=fce79aa0239a3a4e5c7634b9b7ffc356057b70b4
>
> With that change everything compiled cleanly.
>
> But running the regression tests (test-media script) failed with a kernel oops:
>
> Buffer ioctls (Input 0):
> fail: v4l2-test-buffers.cpp(611): q.reqbufs(node, 1)
> test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
> [ 25.309343] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN
> [ 25.310067] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
> [ 25.310471] CPU: 0 PID: 187 Comm: v4l2-compliance Not tainted 6.6.0-rc3+ #1
> [ 25.310837] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
> [ 25.311334] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
> [ 25.311688] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
> 0f 0b 4c 89 e8
> [ 25.312670] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
> [ 25.312948] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
> [ 25.313331] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
> [ 25.313708] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
> [ 25.314097] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
> [ 25.314470] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
> [ 25.314854] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
> [ 25.315281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 25.315594] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
> [ 25.315982] Call Trace:
> [ 25.316122] <TASK>
> [ 25.316243] ? die_addr+0x37/0xa0
> [ 25.316433] ? exc_general_protection+0x144/0x210
> [ 25.316693] ? asm_exc_general_protection+0x22/0x30
> [ 25.316955] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
> [ 25.317235] ? __vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
> [ 25.317555] vb2_core_create_bufs+0x5a0/0xce0 [videobuf2_common]
> [ 25.317879] ? __vb2_queue_alloc+0xd00/0xd00 [videobuf2_common]
> [ 25.318213] vb2_create_bufs+0x680/0x7f0 [videobuf2_v4l2]
> [ 25.318506] ? __kasan_kmalloc+0x83/0x90
> [ 25.318729] ? __kmalloc+0x5c/0x150
> [ 25.318924] ? __video_do_ioctl+0x3a5/0xc20 [videodev]
> [ 25.319223] ? __copy_timestamp+0x270/0x270 [videobuf2_v4l2]
> [ 25.319532] ? v4l_sanitize_format+0x121/0x340 [videodev]
> [ 25.319839] vb2_ioctl_create_bufs+0x280/0x440 [videobuf2_v4l2]
> [ 25.320162] ? check_fmt+0x15/0x5e0 [videodev]
> [ 25.320420] v4l_create_bufs+0xa8/0x150 [videodev]
> [ 25.320693] __video_do_ioctl+0x8d0/0xc20 [videodev]
> [ 25.320975] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
> [ 25.321250] ? __might_fault+0x112/0x170
> [ 25.321463] ? __might_fault+0x112/0x170
> [ 25.321675] video_usercopy+0x48c/0xd00 [videodev]
> [ 25.321949] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
> [ 25.322228] ? v4l_enumstd+0x60/0x60 [videodev]
> [ 25.322497] ? selinux_bprm_creds_for_exec+0xa90/0xa90
> [ 25.322779] ? rseq_ip_fixup+0x304/0x480
> [ 25.322995] ? __up_read+0x10b/0x750
> [ 25.323201] ? rseq_get_rseq_cs+0x680/0x680
> [ 25.323430] v4l2_ioctl+0x17f/0x1f0 [videodev]
> [ 25.323689] __x64_sys_ioctl+0x127/0x190
> [ 25.323905] do_syscall_64+0x35/0x80
> [ 25.324105] entry_SYSCALL_64_after_hwframe+0x46/0xb0
> [ 25.324372] RIP: 0033:0x7fa524bf44eb
> [ 25.324564] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b
> 04 25 28 00 00
> [ 25.325533] RSP: 002b:00007ffc888efee0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
> [ 25.325933] RAX: ffffffffffffffda RBX: 00007ffc888f0350 RCX: 00007fa524bf44eb
> [ 25.326314] RDX: 00007ffc888effb0 RSI: 00000000c100565c RDI: 0000000000000023
> [ 25.326702] RBP: 00007ffc888f8550 R08: 0000000000000000 R09: 0000000000000001
> [ 25.327081] R10: 0000000000000016 R11: 0000000000000246 R12: 0000000000000000
> [ 25.327468] R13: 0000000000000001 R14: 00007ffc888f8010 R15: 00007ffc888f1790
> [ 25.327852] </TASK>
> [ 25.327979] Modules linked in: vivid videobuf2_dma_contig v4l2_tpg v4l2_dv_timings cec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev videobuf2_common mc rc_core
> [ 25.328835] ---[ end trace 0000000000000000 ]---
> [ 25.329083] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
> [ 25.329434] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
> 0f 0b 4c 89 e8
> [ 25.330417] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
> [ 25.330812] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
> [ 25.331194] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
> [ 25.331594] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
> [ 25.331978] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
> [ 25.332360] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
> [ 25.332746] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
> [ 25.333170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 25.333486] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
> [ 25.333861] Kernel panic - not syncing: Fatal exception
> [ 25.334179] Kernel Offset: 0xbe00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
> [ 25.334748] Rebooting in 30 seconds..
>
> I use the build scripts as described here:
>
> https://lore.kernel.org/linux-media/18989016-6392-a77b-6cf7-1223c9161def@xs4all.nl/
>
> I use this command to run the regression tests:
>
> ./build.sh -virtme -virtme-utils-path /usr/local/bin none delbuf
>
> (delbuf is the name of my branch)
>
> I don't really want to spend time reviewing this series until this is fixed...
Yes that make sense.
It will work on it and let you now when I had fix it.
Regards,
Benjamin
>
> Regards,
>
> Hans
>
>> changes in version 8:
>> - Add V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS and new 'max_buffers' field in v4l2_create_buffers
>> structure to report the maximum number of buffers that a queue could allocate.
>> - Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS to indicate that a queue support
>> DELETE_BUFS ioctl.
>> - Make some test drivers use more than 32 buffers and DELETE_BUFS ioctl.
>> - Fix remarks done by Hans
>> - Move "media: core: Rework how create_buf index returned value is
>> computed" patch to the top of the serie.
>>
>> changes in version 7:
>> - Use a bitmap to know which entries are valid in queue bufs array.
>> The number of buffers in the queue could must calculated from the
>> bitmap so num_buffers becomes useless. This led to add quite few
>> patches to remove it from all the drivers.
>> Note: despiste my attention I may have miss some calls to
>> num_buffers...
>> - Split patches to make them more readable.
>> - Run v4l2-compliance with additional delete-bufs tests.
>> - Run ./test-media -kmemleak vivid and no more failures.
>> Note: I had to remove USERPTR streaming test because they to much
>> frequentely hit get_framevec bug. It is not related to my series
>> since this happens all the time on master branch.
>> - Fix Hans remarks on v6
>>
>> changes in version 6:
>> - Get a patch per driver to use vb2_get_buffer() instead of directly access
>> to queue buffers array.
>> - Add lock in vb2_core_delete_buf()
>> - Use vb2_buffer instead of index
>> - Fix various comments
>> - Change buffer index name to BUFFER_INDEX_MASK
>> - Stop spamming kernel log with unbalanced counters
>>
>> changes in version 5:
>> - Rework offset cookie encoding pattern is n ow the first patch of the
>> serie.
>> - Use static array instead of allocated one for postprocessor buffers.
>>
>> changes in version 4:
>> - Stop using Xarray, instead let queues decide about their own maximum
>> number of buffer and allocate bufs array given that value.
>> - Rework offset cookie encoding pattern.
>> - Change DELETE_BUF to DELETE_BUFS because it now usable for
>> range of buffer to be symetrical of CREATE_BUFS.
>> - Add fixes tags on couple of Verisilicon related patches.
>> - Be smarter in Verisilicon postprocessor buffers management.
>> - Rebase on top of v6.4
>>
>> changes in version 3:
>> - Use Xarray API to store allocated video buffers.
>> - No module parameter to limit the number of buffer per queue.
>> - Use Xarray inside Verisilicon driver to store postprocessor buffers
>> and remove VB2_MAX_FRAME limit.
>> - Allow Versilicon driver to change of resolution while streaming
>> - Various fixes the Verisilicon VP9 code to improve fluster score.
>>
>> changes in version 2:
>> - Use a dynamic array and not a list to keep trace of allocated buffers.
>> Not use IDR interface because it is marked as deprecated in kernel
>> documentation.
>> - Add a module parameter to limit the number of buffer per queue.
>> - Add DELETE_BUF ioctl and m2m helpers.
>>
>> Regards,
>> Benjamin
>>
>> Benjamin Gaignard (53):
>> media: videobuf2: Rework offset 'cookie' encoding pattern
>> media: videobuf2: Stop spamming kernel log with all queue counter
>> media: videobuf2: Use vb2_buffer instead of index
>> media: amphion: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: mediatek: jpeg: Use vb2_get_buffer() instead of directly access
>> to buffers array
>> media: mediatek: vdec: Remove useless loop
>> media: sti: hva: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: visl: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: atomisp: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: dvb-core: Use vb2_get_buffer() instead of directly access to
>> buffers array
>> media: videobuf2: Access vb2_queue bufs array through helper functions
>> media: videobuf2: Be more flexible on the number of queue stored
>> buffers
>> media: Report the maximum possible number of buffers for the queue
>> media: test-drivers: vivid: Increase max supported buffers for capture
>> queues
>> media: test-drivers: vicodec: Increase max supported capture queue
>> buffers
>> media: verisilicon: Refactor postprocessor to store more buffers
>> media: verisilicon: Store chroma and motion vectors offset
>> media: verisilicon: g2: Use common helpers to compute chroma and mv
>> offsets
>> media: verisilicon: vp9: Allow to change resolution while streaming
>> media: Remove duplicated index vs q->num_buffers check
>> media: core: Add helper to get queue number of buffers
>> media: dvb-core: Do not initialize twice queue num_buffer field
>> media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed field
>> media: video-i2c: Set min_buffers_needed to 2
>> media: pci: cx18: Set correct value to min_buffers_needed field
>> media: pci: dt3155: Remove useless check
>> media: pci: netup_unidvb: Remove useless number of buffers check
>> media: pci: tw68: Stop direct calls to queue num_buffers field
>> media: pci: tw686x: Set min_buffers_needed to 3
>> media: amphion: Stop direct calls to queue num_buffers field
>> media: coda: Stop direct calls to queue num_buffers field
>> media: mediatek: vcodec: Stop direct calls to queue num_buffers field
>> media: nxp: Stop direct calls to queue num_buffers field
>> media: renesas: Set min_buffers_needed to 16
>> media: ti: Use queue min_buffers_needed field to set the min number of
>> buffers
>> media: verisilicon: Stop direct calls to queue num_buffers field
>> media: test-drivers: Stop direct calls to queue num_buffers field
>> media: usb: airspy: Set min_buffers_needed to 8
>> media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
>> media: usb: hackrf: Set min_buffers_needed to 8
>> media: usb: usbtv: Set min_buffers_needed to 2
>> media: atomisp: Stop direct calls to queue num_buffers field
>> media: imx: Stop direct calls to queue num_buffers field
>> media: meson: vdec: Stop direct calls to queue num_buffers field
>> touchscreen: sur40: Stop direct calls to queue num_buffers field
>> sample: v4l: Stop direct calls to queue num_buffers field
>> media: cedrus: Stop direct calls to queue num_buffers field
>> media: core: Rework how create_buf index returned value is computed
>> media: core: Add bitmap manage bufs array entries
>> media: core: Free range of buffers
>> media: v4l2: Add DELETE_BUFS ioctl
>> media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
>> media: test-drivers: Use helper for DELETE_BUFS ioctl
>>
>> .../userspace-api/media/v4l/user-func.rst | 1 +
>> .../media/v4l/vidioc-create-bufs.rst | 8 +-
>> .../media/v4l/vidioc-delete-bufs.rst | 80 +++
>> .../media/v4l/vidioc-reqbufs.rst | 2 +
>> drivers/input/touchscreen/sur40.c | 5 +-
>> .../media/common/videobuf2/videobuf2-core.c | 556 +++++++++++-------
>> .../media/common/videobuf2/videobuf2-v4l2.c | 121 +++-
>> drivers/media/dvb-core/dvb_vb2.c | 17 +-
>> drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +-
>> drivers/media/i2c/video-i2c.c | 5 +-
>> drivers/media/pci/cx18/cx18-streams.c | 13 +-
>> drivers/media/pci/dt3155/dt3155.c | 2 -
>> .../pci/netup_unidvb/netup_unidvb_core.c | 4 +-
>> drivers/media/pci/tw68/tw68-video.c | 6 +-
>> drivers/media/pci/tw686x/tw686x-video.c | 13 +-
>> drivers/media/platform/amphion/vpu_dbg.c | 30 +-
>> drivers/media/platform/amphion/vpu_v4l2.c | 4 +-
>> .../media/platform/chips-media/coda-common.c | 2 +-
>> .../platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +-
>> .../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 +-
>> .../mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
>> drivers/media/platform/nxp/imx7-media-csi.c | 7 +-
>> drivers/media/platform/renesas/rcar_drif.c | 8 +-
>> drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +-
>> .../media/platform/ti/am437x/am437x-vpfe.c | 7 +-
>> drivers/media/platform/ti/cal/cal-video.c | 5 +-
>> .../media/platform/ti/davinci/vpif_capture.c | 5 +-
>> .../media/platform/ti/davinci/vpif_display.c | 5 +-
>> drivers/media/platform/ti/omap/omap_vout.c | 5 +-
>> drivers/media/platform/verisilicon/hantro.h | 9 +-
>> .../media/platform/verisilicon/hantro_drv.c | 5 +-
>> .../media/platform/verisilicon/hantro_g2.c | 14 +
>> .../platform/verisilicon/hantro_g2_hevc_dec.c | 18 +-
>> .../platform/verisilicon/hantro_g2_vp9_dec.c | 28 +-
>> .../media/platform/verisilicon/hantro_hw.h | 7 +-
>> .../platform/verisilicon/hantro_postproc.c | 93 ++-
>> .../media/platform/verisilicon/hantro_v4l2.c | 27 +-
>> .../media/test-drivers/vicodec/vicodec-core.c | 3 +
>> drivers/media/test-drivers/vim2m.c | 2 +
>> .../media/test-drivers/vimc/vimc-capture.c | 2 +
>> drivers/media/test-drivers/visl/visl-dec.c | 32 +-
>> drivers/media/test-drivers/visl/visl-video.c | 2 +
>> drivers/media/test-drivers/vivid/vivid-core.c | 14 +
>> .../media/test-drivers/vivid/vivid-meta-cap.c | 3 -
>> .../media/test-drivers/vivid/vivid-meta-out.c | 5 +-
>> .../test-drivers/vivid/vivid-touch-cap.c | 5 +-
>> .../media/test-drivers/vivid/vivid-vbi-cap.c | 5 +-
>> .../media/test-drivers/vivid/vivid-vbi-out.c | 5 +-
>> .../media/test-drivers/vivid/vivid-vid-cap.c | 5 +-
>> .../media/test-drivers/vivid/vivid-vid-out.c | 5 +-
>> drivers/media/usb/airspy/airspy.c | 9 +-
>> drivers/media/usb/cx231xx/cx231xx-417.c | 4 +-
>> drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-
>> drivers/media/usb/hackrf/hackrf.c | 9 +-
>> drivers/media/usb/usbtv/usbtv-video.c | 3 +-
>> drivers/media/v4l2-core/v4l2-dev.c | 1 +
>> drivers/media/v4l2-core/v4l2-ioctl.c | 21 +-
>> drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +
>> .../staging/media/atomisp/pci/atomisp_ioctl.c | 4 +-
>> drivers/staging/media/imx/imx-media-capture.c | 7 +-
>> drivers/staging/media/meson/vdec/vdec.c | 13 +-
>> .../staging/media/sunxi/cedrus/cedrus_h264.c | 8 +-
>> .../staging/media/sunxi/cedrus/cedrus_h265.c | 9 +-
>> include/media/v4l2-ioctl.h | 4 +
>> include/media/v4l2-mem2mem.h | 12 +
>> include/media/videobuf2-core.h | 65 +-
>> include/media/videobuf2-v4l2.h | 13 +
>> include/uapi/linux/videodev2.h | 24 +-
>> samples/v4l/v4l2-pci-skeleton.c | 5 +-
>> 69 files changed, 969 insertions(+), 502 deletions(-)
>> create mode 100644 Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
>>
> _______________________________________________
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^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 00/53] Add DELETE_BUF ioctl
2023-09-28 13:16 ` Benjamin Gaignard
(?)
@ 2023-09-29 11:44 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-29 11:44 UTC (permalink / raw)
To: Hans Verkuil, mchehab, tfiga, m.szyprowski, ming.qian, ezequiel,
p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
Le 28/09/2023 à 15:16, Benjamin Gaignard a écrit :
>
> Le 28/09/2023 à 15:04, Hans Verkuil a écrit :
>> Hi Benjamin,
>>
>> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>>> Unlike when resolution change on keyframes, dynamic resolution change
>>> on inter frames doesn't allow to do a stream off/on sequence because
>>> it is need to keep all previous references alive to decode inter
>>> frames.
>>> This constraint have two main problems:
>>> - more memory consumption.
>>> - more buffers in use.
>>> To solve these issue this series introduce DELETE_BUFS ioctl and remove
>>> the 32 buffers limit per queue.
>>>
>>> VP9 conformance tests using fluster give a score of 210/305.
>>> The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
>>> but require to use postprocessor.
>>>
>>> Kernel branch is available here:
>>> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
>>>
>>>
>>> GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
>>> change is here:
>>> https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
>>>
>> I applied patches 1-46 on top of staging and applied patch 1/2 of
>> v4l-utils. I chose
>> 1-46 since those would be the first batch to be merged.
>>
>> I had to apply a small patch on top, since amphion was still using
>> max_allowed_buffers:
>>
>> https://git.linuxtv.org/hverkuil/media_tree.git/commit/?h=delbuf&id=fce79aa0239a3a4e5c7634b9b7ffc356057b70b4
>>
>>
>> With that change everything compiled cleanly.
>>
>> But running the regression tests (test-media script) failed with a
>> kernel oops:
>>
>> Buffer ioctls (Input 0):
>> fail: v4l2-test-buffers.cpp(611): q.reqbufs(node, 1)
>> test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
>> [ 25.309343] general protection fault, probably for non-canonical
>> address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN
>> [ 25.310067] KASAN: null-ptr-deref in range
>> [0x0000000000000008-0x000000000000000f]
>> [ 25.310471] CPU: 0 PID: 187 Comm: v4l2-compliance Not tainted
>> 6.6.0-rc3+ #1
>> [ 25.310837] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
>> BIOS 1.16.2-debian-1.16.2-1 04/01/2014
>> [ 25.311334] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00
>> [videobuf2_common]
>> [ 25.311688] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00
>> 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48
>> c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
>> 0f 0b 4c 89 e8
>> [ 25.312670] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
>> [ 25.312948] RAX: 0000000000000001 RBX: dffffc0000000000 RCX:
>> 0000000000000040
>> [ 25.313331] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI:
>> ffff88810cfb72e0
>> [ 25.313708] RBP: ffff88810ce08800 R08: 0000000000001800 R09:
>> 0000000000000001
>> [ 25.314097] R10: ffffffff91560b0f R11: ffffffff8f40006a R12:
>> ffff88810afefa74
>> [ 25.314470] R13: 0000000000000008 R14: 0000000000000001 R15:
>> ffff88810cfb71a0
>> [ 25.314854] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000)
>> knlGS:0000000000000000
>> [ 25.315281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [ 25.315594] CR2: 0000562855948270 CR3: 0000000109e21000 CR4:
>> 0000000000350ef0
>> [ 25.315982] Call Trace:
>> [ 25.316122] <TASK>
>> [ 25.316243] ? die_addr+0x37/0xa0
>> [ 25.316433] ? exc_general_protection+0x144/0x210
>> [ 25.316693] ? asm_exc_general_protection+0x22/0x30
>> [ 25.316955] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
>> [ 25.317235] ? __vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
>> [ 25.317555] vb2_core_create_bufs+0x5a0/0xce0 [videobuf2_common]
>> [ 25.317879] ? __vb2_queue_alloc+0xd00/0xd00 [videobuf2_common]
>> [ 25.318213] vb2_create_bufs+0x680/0x7f0 [videobuf2_v4l2]
>> [ 25.318506] ? __kasan_kmalloc+0x83/0x90
>> [ 25.318729] ? __kmalloc+0x5c/0x150
>> [ 25.318924] ? __video_do_ioctl+0x3a5/0xc20 [videodev]
>> [ 25.319223] ? __copy_timestamp+0x270/0x270 [videobuf2_v4l2]
>> [ 25.319532] ? v4l_sanitize_format+0x121/0x340 [videodev]
>> [ 25.319839] vb2_ioctl_create_bufs+0x280/0x440 [videobuf2_v4l2]
>> [ 25.320162] ? check_fmt+0x15/0x5e0 [videodev]
>> [ 25.320420] v4l_create_bufs+0xa8/0x150 [videodev]
>> [ 25.320693] __video_do_ioctl+0x8d0/0xc20 [videodev]
>> [ 25.320975] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
>> [ 25.321250] ? __might_fault+0x112/0x170
>> [ 25.321463] ? __might_fault+0x112/0x170
>> [ 25.321675] video_usercopy+0x48c/0xd00 [videodev]
>> [ 25.321949] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
>> [ 25.322228] ? v4l_enumstd+0x60/0x60 [videodev]
>> [ 25.322497] ? selinux_bprm_creds_for_exec+0xa90/0xa90
>> [ 25.322779] ? rseq_ip_fixup+0x304/0x480
>> [ 25.322995] ? __up_read+0x10b/0x750
>> [ 25.323201] ? rseq_get_rseq_cs+0x680/0x680
>> [ 25.323430] v4l2_ioctl+0x17f/0x1f0 [videodev]
>> [ 25.323689] __x64_sys_ioctl+0x127/0x190
>> [ 25.323905] do_syscall_64+0x35/0x80
>> [ 25.324105] entry_SYSCALL_64_after_hwframe+0x46/0xb0
>> [ 25.324372] RIP: 0033:0x7fa524bf44eb
>> [ 25.324564] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24
>> 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00
>> 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b
>> 04 25 28 00 00
>> [ 25.325533] RSP: 002b:00007ffc888efee0 EFLAGS: 00000246 ORIG_RAX:
>> 0000000000000010
>> [ 25.325933] RAX: ffffffffffffffda RBX: 00007ffc888f0350 RCX:
>> 00007fa524bf44eb
>> [ 25.326314] RDX: 00007ffc888effb0 RSI: 00000000c100565c RDI:
>> 0000000000000023
>> [ 25.326702] RBP: 00007ffc888f8550 R08: 0000000000000000 R09:
>> 0000000000000001
>> [ 25.327081] R10: 0000000000000016 R11: 0000000000000246 R12:
>> 0000000000000000
>> [ 25.327468] R13: 0000000000000001 R14: 00007ffc888f8010 R15:
>> 00007ffc888f1790
>> [ 25.327852] </TASK>
>> [ 25.327979] Modules linked in: vivid videobuf2_dma_contig v4l2_tpg
>> v4l2_dv_timings cec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2
>> videodev videobuf2_common mc rc_core
>> [ 25.328835] ---[ end trace 0000000000000000 ]---
>> [ 25.329083] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00
>> [videobuf2_common]
>> [ 25.329434] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00
>> 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48
>> c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
>> 0f 0b 4c 89 e8
>> [ 25.330417] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
>> [ 25.330812] RAX: 0000000000000001 RBX: dffffc0000000000 RCX:
>> 0000000000000040
>> [ 25.331194] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI:
>> ffff88810cfb72e0
>> [ 25.331594] RBP: ffff88810ce08800 R08: 0000000000001800 R09:
>> 0000000000000001
>> [ 25.331978] R10: ffffffff91560b0f R11: ffffffff8f40006a R12:
>> ffff88810afefa74
>> [ 25.332360] R13: 0000000000000008 R14: 0000000000000001 R15:
>> ffff88810cfb71a0
>> [ 25.332746] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000)
>> knlGS:0000000000000000
>> [ 25.333170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [ 25.333486] CR2: 0000562855948270 CR3: 0000000109e21000 CR4:
>> 0000000000350ef0
>> [ 25.333861] Kernel panic - not syncing: Fatal exception
>> [ 25.334179] Kernel Offset: 0xbe00000 from 0xffffffff81000000
>> (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
>> [ 25.334748] Rebooting in 30 seconds..
>>
>> I use the build scripts as described here:
>>
>> https://lore.kernel.org/linux-media/18989016-6392-a77b-6cf7-1223c9161def@xs4all.nl/
>>
>>
>> I use this command to run the regression tests:
>>
>> ./build.sh -virtme -virtme-utils-path /usr/local/bin none delbuf
>>
>> (delbuf is the name of my branch)
>>
>> I don't really want to spend time reviewing this series until this is
>> fixed...
>
> Yes that make sense.
> It will work on it and let you now when I had fix it.
> Regards,
> Benjamin
This patch fix the problem:
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c
b/drivers/media/common/videobuf2/videobuf2-core.c
index 320f37e46343..0598c1e4e9b5 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -428,6 +428,8 @@ static void vb2_queue_add_buffer(struct vb2_queue
*q, struct vb2_buffer *vb, uns
*/
static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
{
+ if (vb->vb2_queue->num_buffers)
+ vb->vb2_queue->num_buffers--;
vb->vb2_queue->bufs[vb->index] = NULL;
vb->vb2_queue = NULL;
}
@@ -641,8 +643,8 @@ static void __vb2_queue_free(struct vb2_queue *q,
unsigned int buffers)
#endif
/* Free vb2 buffers */
- for (i = q->max_num_buffers, buffer = 0; i > 0 && buffer < buffers;
i--) {
- struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+ for (i = q->max_num_buffers, buffer = 0; i >= 0 && buffer <
buffers; i--) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
if (!vb)
continue;
@@ -2541,6 +2543,7 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_queue_free(q, q->max_num_buffers);
kfree(q->bufs);
q->bufs = NULL;
+ q->num_buffers = 0;
mutex_unlock(&q->mmap_lock);
}
EXPORT_SYMBOL_GPL(vb2_core_queue_release);
I'm preparing a v9 with this + your patch for Amphion driver:
https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v9
Regards,
Benjamin
>
>>
>> Regards,
>>
>> Hans
>>
>>> changes in version 8:
>>> - Add V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS and new 'max_buffers' field
>>> in v4l2_create_buffers
>>> structure to report the maximum number of buffers that a queue
>>> could allocate.
>>> - Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS to indicate that a queue
>>> support
>>> DELETE_BUFS ioctl.
>>> - Make some test drivers use more than 32 buffers and DELETE_BUFS
>>> ioctl.
>>> - Fix remarks done by Hans
>>> - Move "media: core: Rework how create_buf index returned value is
>>> computed" patch to the top of the serie.
>>>
>>> changes in version 7:
>>> - Use a bitmap to know which entries are valid in queue bufs array.
>>> The number of buffers in the queue could must calculated from the
>>> bitmap so num_buffers becomes useless. This led to add quite few
>>> patches to remove it from all the drivers.
>>> Note: despiste my attention I may have miss some calls to
>>> num_buffers...
>>> - Split patches to make them more readable.
>>> - Run v4l2-compliance with additional delete-bufs tests.
>>> - Run ./test-media -kmemleak vivid and no more failures.
>>> Note: I had to remove USERPTR streaming test because they to much
>>> frequentely hit get_framevec bug. It is not related to my series
>>> since this happens all the time on master branch.
>>> - Fix Hans remarks on v6
>>>
>>> changes in version 6:
>>> - Get a patch per driver to use vb2_get_buffer() instead of directly
>>> access
>>> to queue buffers array.
>>> - Add lock in vb2_core_delete_buf()
>>> - Use vb2_buffer instead of index
>>> - Fix various comments
>>> - Change buffer index name to BUFFER_INDEX_MASK
>>> - Stop spamming kernel log with unbalanced counters
>>>
>>> changes in version 5:
>>> - Rework offset cookie encoding pattern is n ow the first patch of the
>>> serie.
>>> - Use static array instead of allocated one for postprocessor buffers.
>>>
>>> changes in version 4:
>>> - Stop using Xarray, instead let queues decide about their own maximum
>>> number of buffer and allocate bufs array given that value.
>>> - Rework offset cookie encoding pattern.
>>> - Change DELETE_BUF to DELETE_BUFS because it now usable for
>>> range of buffer to be symetrical of CREATE_BUFS.
>>> - Add fixes tags on couple of Verisilicon related patches.
>>> - Be smarter in Verisilicon postprocessor buffers management.
>>> - Rebase on top of v6.4
>>>
>>> changes in version 3:
>>> - Use Xarray API to store allocated video buffers.
>>> - No module parameter to limit the number of buffer per queue.
>>> - Use Xarray inside Verisilicon driver to store postprocessor buffers
>>> and remove VB2_MAX_FRAME limit.
>>> - Allow Versilicon driver to change of resolution while streaming
>>> - Various fixes the Verisilicon VP9 code to improve fluster score.
>>> changes in version 2:
>>> - Use a dynamic array and not a list to keep trace of allocated
>>> buffers.
>>> Not use IDR interface because it is marked as deprecated in kernel
>>> documentation.
>>> - Add a module parameter to limit the number of buffer per queue.
>>> - Add DELETE_BUF ioctl and m2m helpers.
>>>
>>> Regards,
>>> Benjamin
>>>
>>> Benjamin Gaignard (53):
>>> media: videobuf2: Rework offset 'cookie' encoding pattern
>>> media: videobuf2: Stop spamming kernel log with all queue counter
>>> media: videobuf2: Use vb2_buffer instead of index
>>> media: amphion: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: mediatek: jpeg: Use vb2_get_buffer() instead of directly
>>> access
>>> to buffers array
>>> media: mediatek: vdec: Remove useless loop
>>> media: sti: hva: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: visl: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: atomisp: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: dvb-core: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: videobuf2: Access vb2_queue bufs array through helper
>>> functions
>>> media: videobuf2: Be more flexible on the number of queue stored
>>> buffers
>>> media: Report the maximum possible number of buffers for the queue
>>> media: test-drivers: vivid: Increase max supported buffers for
>>> capture
>>> queues
>>> media: test-drivers: vicodec: Increase max supported capture queue
>>> buffers
>>> media: verisilicon: Refactor postprocessor to store more buffers
>>> media: verisilicon: Store chroma and motion vectors offset
>>> media: verisilicon: g2: Use common helpers to compute chroma and mv
>>> offsets
>>> media: verisilicon: vp9: Allow to change resolution while streaming
>>> media: Remove duplicated index vs q->num_buffers check
>>> media: core: Add helper to get queue number of buffers
>>> media: dvb-core: Do not initialize twice queue num_buffer field
>>> media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed
>>> field
>>> media: video-i2c: Set min_buffers_needed to 2
>>> media: pci: cx18: Set correct value to min_buffers_needed field
>>> media: pci: dt3155: Remove useless check
>>> media: pci: netup_unidvb: Remove useless number of buffers check
>>> media: pci: tw68: Stop direct calls to queue num_buffers field
>>> media: pci: tw686x: Set min_buffers_needed to 3
>>> media: amphion: Stop direct calls to queue num_buffers field
>>> media: coda: Stop direct calls to queue num_buffers field
>>> media: mediatek: vcodec: Stop direct calls to queue num_buffers
>>> field
>>> media: nxp: Stop direct calls to queue num_buffers field
>>> media: renesas: Set min_buffers_needed to 16
>>> media: ti: Use queue min_buffers_needed field to set the min
>>> number of
>>> buffers
>>> media: verisilicon: Stop direct calls to queue num_buffers field
>>> media: test-drivers: Stop direct calls to queue num_buffers field
>>> media: usb: airspy: Set min_buffers_needed to 8
>>> media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
>>> media: usb: hackrf: Set min_buffers_needed to 8
>>> media: usb: usbtv: Set min_buffers_needed to 2
>>> media: atomisp: Stop direct calls to queue num_buffers field
>>> media: imx: Stop direct calls to queue num_buffers field
>>> media: meson: vdec: Stop direct calls to queue num_buffers field
>>> touchscreen: sur40: Stop direct calls to queue num_buffers field
>>> sample: v4l: Stop direct calls to queue num_buffers field
>>> media: cedrus: Stop direct calls to queue num_buffers field
>>> media: core: Rework how create_buf index returned value is computed
>>> media: core: Add bitmap manage bufs array entries
>>> media: core: Free range of buffers
>>> media: v4l2: Add DELETE_BUFS ioctl
>>> media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
>>> media: test-drivers: Use helper for DELETE_BUFS ioctl
>>>
>>> .../userspace-api/media/v4l/user-func.rst | 1 +
>>> .../media/v4l/vidioc-create-bufs.rst | 8 +-
>>> .../media/v4l/vidioc-delete-bufs.rst | 80 +++
>>> .../media/v4l/vidioc-reqbufs.rst | 2 +
>>> drivers/input/touchscreen/sur40.c | 5 +-
>>> .../media/common/videobuf2/videobuf2-core.c | 556
>>> +++++++++++-------
>>> .../media/common/videobuf2/videobuf2-v4l2.c | 121 +++-
>>> drivers/media/dvb-core/dvb_vb2.c | 17 +-
>>> drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +-
>>> drivers/media/i2c/video-i2c.c | 5 +-
>>> drivers/media/pci/cx18/cx18-streams.c | 13 +-
>>> drivers/media/pci/dt3155/dt3155.c | 2 -
>>> .../pci/netup_unidvb/netup_unidvb_core.c | 4 +-
>>> drivers/media/pci/tw68/tw68-video.c | 6 +-
>>> drivers/media/pci/tw686x/tw686x-video.c | 13 +-
>>> drivers/media/platform/amphion/vpu_dbg.c | 30 +-
>>> drivers/media/platform/amphion/vpu_v4l2.c | 4 +-
>>> .../media/platform/chips-media/coda-common.c | 2 +-
>>> .../platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +-
>>> .../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 +-
>>> .../mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
>>> drivers/media/platform/nxp/imx7-media-csi.c | 7 +-
>>> drivers/media/platform/renesas/rcar_drif.c | 8 +-
>>> drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +-
>>> .../media/platform/ti/am437x/am437x-vpfe.c | 7 +-
>>> drivers/media/platform/ti/cal/cal-video.c | 5 +-
>>> .../media/platform/ti/davinci/vpif_capture.c | 5 +-
>>> .../media/platform/ti/davinci/vpif_display.c | 5 +-
>>> drivers/media/platform/ti/omap/omap_vout.c | 5 +-
>>> drivers/media/platform/verisilicon/hantro.h | 9 +-
>>> .../media/platform/verisilicon/hantro_drv.c | 5 +-
>>> .../media/platform/verisilicon/hantro_g2.c | 14 +
>>> .../platform/verisilicon/hantro_g2_hevc_dec.c | 18 +-
>>> .../platform/verisilicon/hantro_g2_vp9_dec.c | 28 +-
>>> .../media/platform/verisilicon/hantro_hw.h | 7 +-
>>> .../platform/verisilicon/hantro_postproc.c | 93 ++-
>>> .../media/platform/verisilicon/hantro_v4l2.c | 27 +-
>>> .../media/test-drivers/vicodec/vicodec-core.c | 3 +
>>> drivers/media/test-drivers/vim2m.c | 2 +
>>> .../media/test-drivers/vimc/vimc-capture.c | 2 +
>>> drivers/media/test-drivers/visl/visl-dec.c | 32 +-
>>> drivers/media/test-drivers/visl/visl-video.c | 2 +
>>> drivers/media/test-drivers/vivid/vivid-core.c | 14 +
>>> .../media/test-drivers/vivid/vivid-meta-cap.c | 3 -
>>> .../media/test-drivers/vivid/vivid-meta-out.c | 5 +-
>>> .../test-drivers/vivid/vivid-touch-cap.c | 5 +-
>>> .../media/test-drivers/vivid/vivid-vbi-cap.c | 5 +-
>>> .../media/test-drivers/vivid/vivid-vbi-out.c | 5 +-
>>> .../media/test-drivers/vivid/vivid-vid-cap.c | 5 +-
>>> .../media/test-drivers/vivid/vivid-vid-out.c | 5 +-
>>> drivers/media/usb/airspy/airspy.c | 9 +-
>>> drivers/media/usb/cx231xx/cx231xx-417.c | 4 +-
>>> drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-
>>> drivers/media/usb/hackrf/hackrf.c | 9 +-
>>> drivers/media/usb/usbtv/usbtv-video.c | 3 +-
>>> drivers/media/v4l2-core/v4l2-dev.c | 1 +
>>> drivers/media/v4l2-core/v4l2-ioctl.c | 21 +-
>>> drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +
>>> .../staging/media/atomisp/pci/atomisp_ioctl.c | 4 +-
>>> drivers/staging/media/imx/imx-media-capture.c | 7 +-
>>> drivers/staging/media/meson/vdec/vdec.c | 13 +-
>>> .../staging/media/sunxi/cedrus/cedrus_h264.c | 8 +-
>>> .../staging/media/sunxi/cedrus/cedrus_h265.c | 9 +-
>>> include/media/v4l2-ioctl.h | 4 +
>>> include/media/v4l2-mem2mem.h | 12 +
>>> include/media/videobuf2-core.h | 65 +-
>>> include/media/videobuf2-v4l2.h | 13 +
>>> include/uapi/linux/videodev2.h | 24 +-
>>> samples/v4l/v4l2-pci-skeleton.c | 5 +-
>>> 69 files changed, 969 insertions(+), 502 deletions(-)
>>> create mode 100644
>>> Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
>>>
>> _______________________________________________
>> Kernel mailing list -- kernel@mailman.collabora.com
>> To unsubscribe send an email to kernel-leave@mailman.collabora.com
^ permalink raw reply related [flat|nested] 190+ messages in thread
* Re: [PATCH v8 00/53] Add DELETE_BUF ioctl
@ 2023-09-29 11:44 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-29 11:44 UTC (permalink / raw)
To: Hans Verkuil, mchehab, tfiga, m.szyprowski, ming.qian, ezequiel,
p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
Le 28/09/2023 à 15:16, Benjamin Gaignard a écrit :
>
> Le 28/09/2023 à 15:04, Hans Verkuil a écrit :
>> Hi Benjamin,
>>
>> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>>> Unlike when resolution change on keyframes, dynamic resolution change
>>> on inter frames doesn't allow to do a stream off/on sequence because
>>> it is need to keep all previous references alive to decode inter
>>> frames.
>>> This constraint have two main problems:
>>> - more memory consumption.
>>> - more buffers in use.
>>> To solve these issue this series introduce DELETE_BUFS ioctl and remove
>>> the 32 buffers limit per queue.
>>>
>>> VP9 conformance tests using fluster give a score of 210/305.
>>> The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
>>> but require to use postprocessor.
>>>
>>> Kernel branch is available here:
>>> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
>>>
>>>
>>> GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
>>> change is here:
>>> https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
>>>
>> I applied patches 1-46 on top of staging and applied patch 1/2 of
>> v4l-utils. I chose
>> 1-46 since those would be the first batch to be merged.
>>
>> I had to apply a small patch on top, since amphion was still using
>> max_allowed_buffers:
>>
>> https://git.linuxtv.org/hverkuil/media_tree.git/commit/?h=delbuf&id=fce79aa0239a3a4e5c7634b9b7ffc356057b70b4
>>
>>
>> With that change everything compiled cleanly.
>>
>> But running the regression tests (test-media script) failed with a
>> kernel oops:
>>
>> Buffer ioctls (Input 0):
>> fail: v4l2-test-buffers.cpp(611): q.reqbufs(node, 1)
>> test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
>> [ 25.309343] general protection fault, probably for non-canonical
>> address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN
>> [ 25.310067] KASAN: null-ptr-deref in range
>> [0x0000000000000008-0x000000000000000f]
>> [ 25.310471] CPU: 0 PID: 187 Comm: v4l2-compliance Not tainted
>> 6.6.0-rc3+ #1
>> [ 25.310837] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
>> BIOS 1.16.2-debian-1.16.2-1 04/01/2014
>> [ 25.311334] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00
>> [videobuf2_common]
>> [ 25.311688] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00
>> 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48
>> c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
>> 0f 0b 4c 89 e8
>> [ 25.312670] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
>> [ 25.312948] RAX: 0000000000000001 RBX: dffffc0000000000 RCX:
>> 0000000000000040
>> [ 25.313331] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI:
>> ffff88810cfb72e0
>> [ 25.313708] RBP: ffff88810ce08800 R08: 0000000000001800 R09:
>> 0000000000000001
>> [ 25.314097] R10: ffffffff91560b0f R11: ffffffff8f40006a R12:
>> ffff88810afefa74
>> [ 25.314470] R13: 0000000000000008 R14: 0000000000000001 R15:
>> ffff88810cfb71a0
>> [ 25.314854] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000)
>> knlGS:0000000000000000
>> [ 25.315281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [ 25.315594] CR2: 0000562855948270 CR3: 0000000109e21000 CR4:
>> 0000000000350ef0
>> [ 25.315982] Call Trace:
>> [ 25.316122] <TASK>
>> [ 25.316243] ? die_addr+0x37/0xa0
>> [ 25.316433] ? exc_general_protection+0x144/0x210
>> [ 25.316693] ? asm_exc_general_protection+0x22/0x30
>> [ 25.316955] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
>> [ 25.317235] ? __vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
>> [ 25.317555] vb2_core_create_bufs+0x5a0/0xce0 [videobuf2_common]
>> [ 25.317879] ? __vb2_queue_alloc+0xd00/0xd00 [videobuf2_common]
>> [ 25.318213] vb2_create_bufs+0x680/0x7f0 [videobuf2_v4l2]
>> [ 25.318506] ? __kasan_kmalloc+0x83/0x90
>> [ 25.318729] ? __kmalloc+0x5c/0x150
>> [ 25.318924] ? __video_do_ioctl+0x3a5/0xc20 [videodev]
>> [ 25.319223] ? __copy_timestamp+0x270/0x270 [videobuf2_v4l2]
>> [ 25.319532] ? v4l_sanitize_format+0x121/0x340 [videodev]
>> [ 25.319839] vb2_ioctl_create_bufs+0x280/0x440 [videobuf2_v4l2]
>> [ 25.320162] ? check_fmt+0x15/0x5e0 [videodev]
>> [ 25.320420] v4l_create_bufs+0xa8/0x150 [videodev]
>> [ 25.320693] __video_do_ioctl+0x8d0/0xc20 [videodev]
>> [ 25.320975] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
>> [ 25.321250] ? __might_fault+0x112/0x170
>> [ 25.321463] ? __might_fault+0x112/0x170
>> [ 25.321675] video_usercopy+0x48c/0xd00 [videodev]
>> [ 25.321949] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
>> [ 25.322228] ? v4l_enumstd+0x60/0x60 [videodev]
>> [ 25.322497] ? selinux_bprm_creds_for_exec+0xa90/0xa90
>> [ 25.322779] ? rseq_ip_fixup+0x304/0x480
>> [ 25.322995] ? __up_read+0x10b/0x750
>> [ 25.323201] ? rseq_get_rseq_cs+0x680/0x680
>> [ 25.323430] v4l2_ioctl+0x17f/0x1f0 [videodev]
>> [ 25.323689] __x64_sys_ioctl+0x127/0x190
>> [ 25.323905] do_syscall_64+0x35/0x80
>> [ 25.324105] entry_SYSCALL_64_after_hwframe+0x46/0xb0
>> [ 25.324372] RIP: 0033:0x7fa524bf44eb
>> [ 25.324564] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24
>> 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00
>> 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b
>> 04 25 28 00 00
>> [ 25.325533] RSP: 002b:00007ffc888efee0 EFLAGS: 00000246 ORIG_RAX:
>> 0000000000000010
>> [ 25.325933] RAX: ffffffffffffffda RBX: 00007ffc888f0350 RCX:
>> 00007fa524bf44eb
>> [ 25.326314] RDX: 00007ffc888effb0 RSI: 00000000c100565c RDI:
>> 0000000000000023
>> [ 25.326702] RBP: 00007ffc888f8550 R08: 0000000000000000 R09:
>> 0000000000000001
>> [ 25.327081] R10: 0000000000000016 R11: 0000000000000246 R12:
>> 0000000000000000
>> [ 25.327468] R13: 0000000000000001 R14: 00007ffc888f8010 R15:
>> 00007ffc888f1790
>> [ 25.327852] </TASK>
>> [ 25.327979] Modules linked in: vivid videobuf2_dma_contig v4l2_tpg
>> v4l2_dv_timings cec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2
>> videodev videobuf2_common mc rc_core
>> [ 25.328835] ---[ end trace 0000000000000000 ]---
>> [ 25.329083] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00
>> [videobuf2_common]
>> [ 25.329434] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00
>> 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48
>> c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
>> 0f 0b 4c 89 e8
>> [ 25.330417] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
>> [ 25.330812] RAX: 0000000000000001 RBX: dffffc0000000000 RCX:
>> 0000000000000040
>> [ 25.331194] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI:
>> ffff88810cfb72e0
>> [ 25.331594] RBP: ffff88810ce08800 R08: 0000000000001800 R09:
>> 0000000000000001
>> [ 25.331978] R10: ffffffff91560b0f R11: ffffffff8f40006a R12:
>> ffff88810afefa74
>> [ 25.332360] R13: 0000000000000008 R14: 0000000000000001 R15:
>> ffff88810cfb71a0
>> [ 25.332746] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000)
>> knlGS:0000000000000000
>> [ 25.333170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [ 25.333486] CR2: 0000562855948270 CR3: 0000000109e21000 CR4:
>> 0000000000350ef0
>> [ 25.333861] Kernel panic - not syncing: Fatal exception
>> [ 25.334179] Kernel Offset: 0xbe00000 from 0xffffffff81000000
>> (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
>> [ 25.334748] Rebooting in 30 seconds..
>>
>> I use the build scripts as described here:
>>
>> https://lore.kernel.org/linux-media/18989016-6392-a77b-6cf7-1223c9161def@xs4all.nl/
>>
>>
>> I use this command to run the regression tests:
>>
>> ./build.sh -virtme -virtme-utils-path /usr/local/bin none delbuf
>>
>> (delbuf is the name of my branch)
>>
>> I don't really want to spend time reviewing this series until this is
>> fixed...
>
> Yes that make sense.
> It will work on it and let you now when I had fix it.
> Regards,
> Benjamin
This patch fix the problem:
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c
b/drivers/media/common/videobuf2/videobuf2-core.c
index 320f37e46343..0598c1e4e9b5 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -428,6 +428,8 @@ static void vb2_queue_add_buffer(struct vb2_queue
*q, struct vb2_buffer *vb, uns
*/
static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
{
+ if (vb->vb2_queue->num_buffers)
+ vb->vb2_queue->num_buffers--;
vb->vb2_queue->bufs[vb->index] = NULL;
vb->vb2_queue = NULL;
}
@@ -641,8 +643,8 @@ static void __vb2_queue_free(struct vb2_queue *q,
unsigned int buffers)
#endif
/* Free vb2 buffers */
- for (i = q->max_num_buffers, buffer = 0; i > 0 && buffer < buffers;
i--) {
- struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+ for (i = q->max_num_buffers, buffer = 0; i >= 0 && buffer <
buffers; i--) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
if (!vb)
continue;
@@ -2541,6 +2543,7 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_queue_free(q, q->max_num_buffers);
kfree(q->bufs);
q->bufs = NULL;
+ q->num_buffers = 0;
mutex_unlock(&q->mmap_lock);
}
EXPORT_SYMBOL_GPL(vb2_core_queue_release);
I'm preparing a v9 with this + your patch for Amphion driver:
https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v9
Regards,
Benjamin
>
>>
>> Regards,
>>
>> Hans
>>
>>> changes in version 8:
>>> - Add V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS and new 'max_buffers' field
>>> in v4l2_create_buffers
>>> structure to report the maximum number of buffers that a queue
>>> could allocate.
>>> - Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS to indicate that a queue
>>> support
>>> DELETE_BUFS ioctl.
>>> - Make some test drivers use more than 32 buffers and DELETE_BUFS
>>> ioctl.
>>> - Fix remarks done by Hans
>>> - Move "media: core: Rework how create_buf index returned value is
>>> computed" patch to the top of the serie.
>>>
>>> changes in version 7:
>>> - Use a bitmap to know which entries are valid in queue bufs array.
>>> The number of buffers in the queue could must calculated from the
>>> bitmap so num_buffers becomes useless. This led to add quite few
>>> patches to remove it from all the drivers.
>>> Note: despiste my attention I may have miss some calls to
>>> num_buffers...
>>> - Split patches to make them more readable.
>>> - Run v4l2-compliance with additional delete-bufs tests.
>>> - Run ./test-media -kmemleak vivid and no more failures.
>>> Note: I had to remove USERPTR streaming test because they to much
>>> frequentely hit get_framevec bug. It is not related to my series
>>> since this happens all the time on master branch.
>>> - Fix Hans remarks on v6
>>>
>>> changes in version 6:
>>> - Get a patch per driver to use vb2_get_buffer() instead of directly
>>> access
>>> to queue buffers array.
>>> - Add lock in vb2_core_delete_buf()
>>> - Use vb2_buffer instead of index
>>> - Fix various comments
>>> - Change buffer index name to BUFFER_INDEX_MASK
>>> - Stop spamming kernel log with unbalanced counters
>>>
>>> changes in version 5:
>>> - Rework offset cookie encoding pattern is n ow the first patch of the
>>> serie.
>>> - Use static array instead of allocated one for postprocessor buffers.
>>>
>>> changes in version 4:
>>> - Stop using Xarray, instead let queues decide about their own maximum
>>> number of buffer and allocate bufs array given that value.
>>> - Rework offset cookie encoding pattern.
>>> - Change DELETE_BUF to DELETE_BUFS because it now usable for
>>> range of buffer to be symetrical of CREATE_BUFS.
>>> - Add fixes tags on couple of Verisilicon related patches.
>>> - Be smarter in Verisilicon postprocessor buffers management.
>>> - Rebase on top of v6.4
>>>
>>> changes in version 3:
>>> - Use Xarray API to store allocated video buffers.
>>> - No module parameter to limit the number of buffer per queue.
>>> - Use Xarray inside Verisilicon driver to store postprocessor buffers
>>> and remove VB2_MAX_FRAME limit.
>>> - Allow Versilicon driver to change of resolution while streaming
>>> - Various fixes the Verisilicon VP9 code to improve fluster score.
>>> changes in version 2:
>>> - Use a dynamic array and not a list to keep trace of allocated
>>> buffers.
>>> Not use IDR interface because it is marked as deprecated in kernel
>>> documentation.
>>> - Add a module parameter to limit the number of buffer per queue.
>>> - Add DELETE_BUF ioctl and m2m helpers.
>>>
>>> Regards,
>>> Benjamin
>>>
>>> Benjamin Gaignard (53):
>>> media: videobuf2: Rework offset 'cookie' encoding pattern
>>> media: videobuf2: Stop spamming kernel log with all queue counter
>>> media: videobuf2: Use vb2_buffer instead of index
>>> media: amphion: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: mediatek: jpeg: Use vb2_get_buffer() instead of directly
>>> access
>>> to buffers array
>>> media: mediatek: vdec: Remove useless loop
>>> media: sti: hva: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: visl: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: atomisp: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: dvb-core: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: videobuf2: Access vb2_queue bufs array through helper
>>> functions
>>> media: videobuf2: Be more flexible on the number of queue stored
>>> buffers
>>> media: Report the maximum possible number of buffers for the queue
>>> media: test-drivers: vivid: Increase max supported buffers for
>>> capture
>>> queues
>>> media: test-drivers: vicodec: Increase max supported capture queue
>>> buffers
>>> media: verisilicon: Refactor postprocessor to store more buffers
>>> media: verisilicon: Store chroma and motion vectors offset
>>> media: verisilicon: g2: Use common helpers to compute chroma and mv
>>> offsets
>>> media: verisilicon: vp9: Allow to change resolution while streaming
>>> media: Remove duplicated index vs q->num_buffers check
>>> media: core: Add helper to get queue number of buffers
>>> media: dvb-core: Do not initialize twice queue num_buffer field
>>> media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed
>>> field
>>> media: video-i2c: Set min_buffers_needed to 2
>>> media: pci: cx18: Set correct value to min_buffers_needed field
>>> media: pci: dt3155: Remove useless check
>>> media: pci: netup_unidvb: Remove useless number of buffers check
>>> media: pci: tw68: Stop direct calls to queue num_buffers field
>>> media: pci: tw686x: Set min_buffers_needed to 3
>>> media: amphion: Stop direct calls to queue num_buffers field
>>> media: coda: Stop direct calls to queue num_buffers field
>>> media: mediatek: vcodec: Stop direct calls to queue num_buffers
>>> field
>>> media: nxp: Stop direct calls to queue num_buffers field
>>> media: renesas: Set min_buffers_needed to 16
>>> media: ti: Use queue min_buffers_needed field to set the min
>>> number of
>>> buffers
>>> media: verisilicon: Stop direct calls to queue num_buffers field
>>> media: test-drivers: Stop direct calls to queue num_buffers field
>>> media: usb: airspy: Set min_buffers_needed to 8
>>> media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
>>> media: usb: hackrf: Set min_buffers_needed to 8
>>> media: usb: usbtv: Set min_buffers_needed to 2
>>> media: atomisp: Stop direct calls to queue num_buffers field
>>> media: imx: Stop direct calls to queue num_buffers field
>>> media: meson: vdec: Stop direct calls to queue num_buffers field
>>> touchscreen: sur40: Stop direct calls to queue num_buffers field
>>> sample: v4l: Stop direct calls to queue num_buffers field
>>> media: cedrus: Stop direct calls to queue num_buffers field
>>> media: core: Rework how create_buf index returned value is computed
>>> media: core: Add bitmap manage bufs array entries
>>> media: core: Free range of buffers
>>> media: v4l2: Add DELETE_BUFS ioctl
>>> media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
>>> media: test-drivers: Use helper for DELETE_BUFS ioctl
>>>
>>> .../userspace-api/media/v4l/user-func.rst | 1 +
>>> .../media/v4l/vidioc-create-bufs.rst | 8 +-
>>> .../media/v4l/vidioc-delete-bufs.rst | 80 +++
>>> .../media/v4l/vidioc-reqbufs.rst | 2 +
>>> drivers/input/touchscreen/sur40.c | 5 +-
>>> .../media/common/videobuf2/videobuf2-core.c | 556
>>> +++++++++++-------
>>> .../media/common/videobuf2/videobuf2-v4l2.c | 121 +++-
>>> drivers/media/dvb-core/dvb_vb2.c | 17 +-
>>> drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +-
>>> drivers/media/i2c/video-i2c.c | 5 +-
>>> drivers/media/pci/cx18/cx18-streams.c | 13 +-
>>> drivers/media/pci/dt3155/dt3155.c | 2 -
>>> .../pci/netup_unidvb/netup_unidvb_core.c | 4 +-
>>> drivers/media/pci/tw68/tw68-video.c | 6 +-
>>> drivers/media/pci/tw686x/tw686x-video.c | 13 +-
>>> drivers/media/platform/amphion/vpu_dbg.c | 30 +-
>>> drivers/media/platform/amphion/vpu_v4l2.c | 4 +-
>>> .../media/platform/chips-media/coda-common.c | 2 +-
>>> .../platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +-
>>> .../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 +-
>>> .../mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
>>> drivers/media/platform/nxp/imx7-media-csi.c | 7 +-
>>> drivers/media/platform/renesas/rcar_drif.c | 8 +-
>>> drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +-
>>> .../media/platform/ti/am437x/am437x-vpfe.c | 7 +-
>>> drivers/media/platform/ti/cal/cal-video.c | 5 +-
>>> .../media/platform/ti/davinci/vpif_capture.c | 5 +-
>>> .../media/platform/ti/davinci/vpif_display.c | 5 +-
>>> drivers/media/platform/ti/omap/omap_vout.c | 5 +-
>>> drivers/media/platform/verisilicon/hantro.h | 9 +-
>>> .../media/platform/verisilicon/hantro_drv.c | 5 +-
>>> .../media/platform/verisilicon/hantro_g2.c | 14 +
>>> .../platform/verisilicon/hantro_g2_hevc_dec.c | 18 +-
>>> .../platform/verisilicon/hantro_g2_vp9_dec.c | 28 +-
>>> .../media/platform/verisilicon/hantro_hw.h | 7 +-
>>> .../platform/verisilicon/hantro_postproc.c | 93 ++-
>>> .../media/platform/verisilicon/hantro_v4l2.c | 27 +-
>>> .../media/test-drivers/vicodec/vicodec-core.c | 3 +
>>> drivers/media/test-drivers/vim2m.c | 2 +
>>> .../media/test-drivers/vimc/vimc-capture.c | 2 +
>>> drivers/media/test-drivers/visl/visl-dec.c | 32 +-
>>> drivers/media/test-drivers/visl/visl-video.c | 2 +
>>> drivers/media/test-drivers/vivid/vivid-core.c | 14 +
>>> .../media/test-drivers/vivid/vivid-meta-cap.c | 3 -
>>> .../media/test-drivers/vivid/vivid-meta-out.c | 5 +-
>>> .../test-drivers/vivid/vivid-touch-cap.c | 5 +-
>>> .../media/test-drivers/vivid/vivid-vbi-cap.c | 5 +-
>>> .../media/test-drivers/vivid/vivid-vbi-out.c | 5 +-
>>> .../media/test-drivers/vivid/vivid-vid-cap.c | 5 +-
>>> .../media/test-drivers/vivid/vivid-vid-out.c | 5 +-
>>> drivers/media/usb/airspy/airspy.c | 9 +-
>>> drivers/media/usb/cx231xx/cx231xx-417.c | 4 +-
>>> drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-
>>> drivers/media/usb/hackrf/hackrf.c | 9 +-
>>> drivers/media/usb/usbtv/usbtv-video.c | 3 +-
>>> drivers/media/v4l2-core/v4l2-dev.c | 1 +
>>> drivers/media/v4l2-core/v4l2-ioctl.c | 21 +-
>>> drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +
>>> .../staging/media/atomisp/pci/atomisp_ioctl.c | 4 +-
>>> drivers/staging/media/imx/imx-media-capture.c | 7 +-
>>> drivers/staging/media/meson/vdec/vdec.c | 13 +-
>>> .../staging/media/sunxi/cedrus/cedrus_h264.c | 8 +-
>>> .../staging/media/sunxi/cedrus/cedrus_h265.c | 9 +-
>>> include/media/v4l2-ioctl.h | 4 +
>>> include/media/v4l2-mem2mem.h | 12 +
>>> include/media/videobuf2-core.h | 65 +-
>>> include/media/videobuf2-v4l2.h | 13 +
>>> include/uapi/linux/videodev2.h | 24 +-
>>> samples/v4l/v4l2-pci-skeleton.c | 5 +-
>>> 69 files changed, 969 insertions(+), 502 deletions(-)
>>> create mode 100644
>>> Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
>>>
>> _______________________________________________
>> Kernel mailing list -- kernel@mailman.collabora.com
>> To unsubscribe send an email to kernel-leave@mailman.collabora.com
_______________________________________________
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^ permalink raw reply related [flat|nested] 190+ messages in thread
* Re: [PATCH v8 00/53] Add DELETE_BUF ioctl
@ 2023-09-29 11:44 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-09-29 11:44 UTC (permalink / raw)
To: Hans Verkuil, mchehab, tfiga, m.szyprowski, ming.qian, ezequiel,
p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
Le 28/09/2023 à 15:16, Benjamin Gaignard a écrit :
>
> Le 28/09/2023 à 15:04, Hans Verkuil a écrit :
>> Hi Benjamin,
>>
>> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>>> Unlike when resolution change on keyframes, dynamic resolution change
>>> on inter frames doesn't allow to do a stream off/on sequence because
>>> it is need to keep all previous references alive to decode inter
>>> frames.
>>> This constraint have two main problems:
>>> - more memory consumption.
>>> - more buffers in use.
>>> To solve these issue this series introduce DELETE_BUFS ioctl and remove
>>> the 32 buffers limit per queue.
>>>
>>> VP9 conformance tests using fluster give a score of 210/305.
>>> The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
>>> but require to use postprocessor.
>>>
>>> Kernel branch is available here:
>>> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
>>>
>>>
>>> GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
>>> change is here:
>>> https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
>>>
>> I applied patches 1-46 on top of staging and applied patch 1/2 of
>> v4l-utils. I chose
>> 1-46 since those would be the first batch to be merged.
>>
>> I had to apply a small patch on top, since amphion was still using
>> max_allowed_buffers:
>>
>> https://git.linuxtv.org/hverkuil/media_tree.git/commit/?h=delbuf&id=fce79aa0239a3a4e5c7634b9b7ffc356057b70b4
>>
>>
>> With that change everything compiled cleanly.
>>
>> But running the regression tests (test-media script) failed with a
>> kernel oops:
>>
>> Buffer ioctls (Input 0):
>> fail: v4l2-test-buffers.cpp(611): q.reqbufs(node, 1)
>> test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
>> [ 25.309343] general protection fault, probably for non-canonical
>> address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN
>> [ 25.310067] KASAN: null-ptr-deref in range
>> [0x0000000000000008-0x000000000000000f]
>> [ 25.310471] CPU: 0 PID: 187 Comm: v4l2-compliance Not tainted
>> 6.6.0-rc3+ #1
>> [ 25.310837] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
>> BIOS 1.16.2-debian-1.16.2-1 04/01/2014
>> [ 25.311334] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00
>> [videobuf2_common]
>> [ 25.311688] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00
>> 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48
>> c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
>> 0f 0b 4c 89 e8
>> [ 25.312670] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
>> [ 25.312948] RAX: 0000000000000001 RBX: dffffc0000000000 RCX:
>> 0000000000000040
>> [ 25.313331] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI:
>> ffff88810cfb72e0
>> [ 25.313708] RBP: ffff88810ce08800 R08: 0000000000001800 R09:
>> 0000000000000001
>> [ 25.314097] R10: ffffffff91560b0f R11: ffffffff8f40006a R12:
>> ffff88810afefa74
>> [ 25.314470] R13: 0000000000000008 R14: 0000000000000001 R15:
>> ffff88810cfb71a0
>> [ 25.314854] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000)
>> knlGS:0000000000000000
>> [ 25.315281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [ 25.315594] CR2: 0000562855948270 CR3: 0000000109e21000 CR4:
>> 0000000000350ef0
>> [ 25.315982] Call Trace:
>> [ 25.316122] <TASK>
>> [ 25.316243] ? die_addr+0x37/0xa0
>> [ 25.316433] ? exc_general_protection+0x144/0x210
>> [ 25.316693] ? asm_exc_general_protection+0x22/0x30
>> [ 25.316955] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
>> [ 25.317235] ? __vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
>> [ 25.317555] vb2_core_create_bufs+0x5a0/0xce0 [videobuf2_common]
>> [ 25.317879] ? __vb2_queue_alloc+0xd00/0xd00 [videobuf2_common]
>> [ 25.318213] vb2_create_bufs+0x680/0x7f0 [videobuf2_v4l2]
>> [ 25.318506] ? __kasan_kmalloc+0x83/0x90
>> [ 25.318729] ? __kmalloc+0x5c/0x150
>> [ 25.318924] ? __video_do_ioctl+0x3a5/0xc20 [videodev]
>> [ 25.319223] ? __copy_timestamp+0x270/0x270 [videobuf2_v4l2]
>> [ 25.319532] ? v4l_sanitize_format+0x121/0x340 [videodev]
>> [ 25.319839] vb2_ioctl_create_bufs+0x280/0x440 [videobuf2_v4l2]
>> [ 25.320162] ? check_fmt+0x15/0x5e0 [videodev]
>> [ 25.320420] v4l_create_bufs+0xa8/0x150 [videodev]
>> [ 25.320693] __video_do_ioctl+0x8d0/0xc20 [videodev]
>> [ 25.320975] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
>> [ 25.321250] ? __might_fault+0x112/0x170
>> [ 25.321463] ? __might_fault+0x112/0x170
>> [ 25.321675] video_usercopy+0x48c/0xd00 [videodev]
>> [ 25.321949] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
>> [ 25.322228] ? v4l_enumstd+0x60/0x60 [videodev]
>> [ 25.322497] ? selinux_bprm_creds_for_exec+0xa90/0xa90
>> [ 25.322779] ? rseq_ip_fixup+0x304/0x480
>> [ 25.322995] ? __up_read+0x10b/0x750
>> [ 25.323201] ? rseq_get_rseq_cs+0x680/0x680
>> [ 25.323430] v4l2_ioctl+0x17f/0x1f0 [videodev]
>> [ 25.323689] __x64_sys_ioctl+0x127/0x190
>> [ 25.323905] do_syscall_64+0x35/0x80
>> [ 25.324105] entry_SYSCALL_64_after_hwframe+0x46/0xb0
>> [ 25.324372] RIP: 0033:0x7fa524bf44eb
>> [ 25.324564] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24
>> 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00
>> 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b
>> 04 25 28 00 00
>> [ 25.325533] RSP: 002b:00007ffc888efee0 EFLAGS: 00000246 ORIG_RAX:
>> 0000000000000010
>> [ 25.325933] RAX: ffffffffffffffda RBX: 00007ffc888f0350 RCX:
>> 00007fa524bf44eb
>> [ 25.326314] RDX: 00007ffc888effb0 RSI: 00000000c100565c RDI:
>> 0000000000000023
>> [ 25.326702] RBP: 00007ffc888f8550 R08: 0000000000000000 R09:
>> 0000000000000001
>> [ 25.327081] R10: 0000000000000016 R11: 0000000000000246 R12:
>> 0000000000000000
>> [ 25.327468] R13: 0000000000000001 R14: 00007ffc888f8010 R15:
>> 00007ffc888f1790
>> [ 25.327852] </TASK>
>> [ 25.327979] Modules linked in: vivid videobuf2_dma_contig v4l2_tpg
>> v4l2_dv_timings cec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2
>> videodev videobuf2_common mc rc_core
>> [ 25.328835] ---[ end trace 0000000000000000 ]---
>> [ 25.329083] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00
>> [videobuf2_common]
>> [ 25.329434] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00
>> 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48
>> c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
>> 0f 0b 4c 89 e8
>> [ 25.330417] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
>> [ 25.330812] RAX: 0000000000000001 RBX: dffffc0000000000 RCX:
>> 0000000000000040
>> [ 25.331194] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI:
>> ffff88810cfb72e0
>> [ 25.331594] RBP: ffff88810ce08800 R08: 0000000000001800 R09:
>> 0000000000000001
>> [ 25.331978] R10: ffffffff91560b0f R11: ffffffff8f40006a R12:
>> ffff88810afefa74
>> [ 25.332360] R13: 0000000000000008 R14: 0000000000000001 R15:
>> ffff88810cfb71a0
>> [ 25.332746] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000)
>> knlGS:0000000000000000
>> [ 25.333170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [ 25.333486] CR2: 0000562855948270 CR3: 0000000109e21000 CR4:
>> 0000000000350ef0
>> [ 25.333861] Kernel panic - not syncing: Fatal exception
>> [ 25.334179] Kernel Offset: 0xbe00000 from 0xffffffff81000000
>> (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
>> [ 25.334748] Rebooting in 30 seconds..
>>
>> I use the build scripts as described here:
>>
>> https://lore.kernel.org/linux-media/18989016-6392-a77b-6cf7-1223c9161def@xs4all.nl/
>>
>>
>> I use this command to run the regression tests:
>>
>> ./build.sh -virtme -virtme-utils-path /usr/local/bin none delbuf
>>
>> (delbuf is the name of my branch)
>>
>> I don't really want to spend time reviewing this series until this is
>> fixed...
>
> Yes that make sense.
> It will work on it and let you now when I had fix it.
> Regards,
> Benjamin
This patch fix the problem:
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c
b/drivers/media/common/videobuf2/videobuf2-core.c
index 320f37e46343..0598c1e4e9b5 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -428,6 +428,8 @@ static void vb2_queue_add_buffer(struct vb2_queue
*q, struct vb2_buffer *vb, uns
*/
static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
{
+ if (vb->vb2_queue->num_buffers)
+ vb->vb2_queue->num_buffers--;
vb->vb2_queue->bufs[vb->index] = NULL;
vb->vb2_queue = NULL;
}
@@ -641,8 +643,8 @@ static void __vb2_queue_free(struct vb2_queue *q,
unsigned int buffers)
#endif
/* Free vb2 buffers */
- for (i = q->max_num_buffers, buffer = 0; i > 0 && buffer < buffers;
i--) {
- struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
+ for (i = q->max_num_buffers, buffer = 0; i >= 0 && buffer <
buffers; i--) {
+ struct vb2_buffer *vb = vb2_get_buffer(q, i);
if (!vb)
continue;
@@ -2541,6 +2543,7 @@ void vb2_core_queue_release(struct vb2_queue *q)
__vb2_queue_free(q, q->max_num_buffers);
kfree(q->bufs);
q->bufs = NULL;
+ q->num_buffers = 0;
mutex_unlock(&q->mmap_lock);
}
EXPORT_SYMBOL_GPL(vb2_core_queue_release);
I'm preparing a v9 with this + your patch for Amphion driver:
https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v9
Regards,
Benjamin
>
>>
>> Regards,
>>
>> Hans
>>
>>> changes in version 8:
>>> - Add V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS and new 'max_buffers' field
>>> in v4l2_create_buffers
>>> structure to report the maximum number of buffers that a queue
>>> could allocate.
>>> - Add V4L2_BUF_CAP_SUPPORTS_DELETE_BUFS to indicate that a queue
>>> support
>>> DELETE_BUFS ioctl.
>>> - Make some test drivers use more than 32 buffers and DELETE_BUFS
>>> ioctl.
>>> - Fix remarks done by Hans
>>> - Move "media: core: Rework how create_buf index returned value is
>>> computed" patch to the top of the serie.
>>>
>>> changes in version 7:
>>> - Use a bitmap to know which entries are valid in queue bufs array.
>>> The number of buffers in the queue could must calculated from the
>>> bitmap so num_buffers becomes useless. This led to add quite few
>>> patches to remove it from all the drivers.
>>> Note: despiste my attention I may have miss some calls to
>>> num_buffers...
>>> - Split patches to make them more readable.
>>> - Run v4l2-compliance with additional delete-bufs tests.
>>> - Run ./test-media -kmemleak vivid and no more failures.
>>> Note: I had to remove USERPTR streaming test because they to much
>>> frequentely hit get_framevec bug. It is not related to my series
>>> since this happens all the time on master branch.
>>> - Fix Hans remarks on v6
>>>
>>> changes in version 6:
>>> - Get a patch per driver to use vb2_get_buffer() instead of directly
>>> access
>>> to queue buffers array.
>>> - Add lock in vb2_core_delete_buf()
>>> - Use vb2_buffer instead of index
>>> - Fix various comments
>>> - Change buffer index name to BUFFER_INDEX_MASK
>>> - Stop spamming kernel log with unbalanced counters
>>>
>>> changes in version 5:
>>> - Rework offset cookie encoding pattern is n ow the first patch of the
>>> serie.
>>> - Use static array instead of allocated one for postprocessor buffers.
>>>
>>> changes in version 4:
>>> - Stop using Xarray, instead let queues decide about their own maximum
>>> number of buffer and allocate bufs array given that value.
>>> - Rework offset cookie encoding pattern.
>>> - Change DELETE_BUF to DELETE_BUFS because it now usable for
>>> range of buffer to be symetrical of CREATE_BUFS.
>>> - Add fixes tags on couple of Verisilicon related patches.
>>> - Be smarter in Verisilicon postprocessor buffers management.
>>> - Rebase on top of v6.4
>>>
>>> changes in version 3:
>>> - Use Xarray API to store allocated video buffers.
>>> - No module parameter to limit the number of buffer per queue.
>>> - Use Xarray inside Verisilicon driver to store postprocessor buffers
>>> and remove VB2_MAX_FRAME limit.
>>> - Allow Versilicon driver to change of resolution while streaming
>>> - Various fixes the Verisilicon VP9 code to improve fluster score.
>>> changes in version 2:
>>> - Use a dynamic array and not a list to keep trace of allocated
>>> buffers.
>>> Not use IDR interface because it is marked as deprecated in kernel
>>> documentation.
>>> - Add a module parameter to limit the number of buffer per queue.
>>> - Add DELETE_BUF ioctl and m2m helpers.
>>>
>>> Regards,
>>> Benjamin
>>>
>>> Benjamin Gaignard (53):
>>> media: videobuf2: Rework offset 'cookie' encoding pattern
>>> media: videobuf2: Stop spamming kernel log with all queue counter
>>> media: videobuf2: Use vb2_buffer instead of index
>>> media: amphion: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: mediatek: jpeg: Use vb2_get_buffer() instead of directly
>>> access
>>> to buffers array
>>> media: mediatek: vdec: Remove useless loop
>>> media: sti: hva: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: visl: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: atomisp: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: dvb-core: Use vb2_get_buffer() instead of directly access to
>>> buffers array
>>> media: videobuf2: Access vb2_queue bufs array through helper
>>> functions
>>> media: videobuf2: Be more flexible on the number of queue stored
>>> buffers
>>> media: Report the maximum possible number of buffers for the queue
>>> media: test-drivers: vivid: Increase max supported buffers for
>>> capture
>>> queues
>>> media: test-drivers: vicodec: Increase max supported capture queue
>>> buffers
>>> media: verisilicon: Refactor postprocessor to store more buffers
>>> media: verisilicon: Store chroma and motion vectors offset
>>> media: verisilicon: g2: Use common helpers to compute chroma and mv
>>> offsets
>>> media: verisilicon: vp9: Allow to change resolution while streaming
>>> media: Remove duplicated index vs q->num_buffers check
>>> media: core: Add helper to get queue number of buffers
>>> media: dvb-core: Do not initialize twice queue num_buffer field
>>> media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed
>>> field
>>> media: video-i2c: Set min_buffers_needed to 2
>>> media: pci: cx18: Set correct value to min_buffers_needed field
>>> media: pci: dt3155: Remove useless check
>>> media: pci: netup_unidvb: Remove useless number of buffers check
>>> media: pci: tw68: Stop direct calls to queue num_buffers field
>>> media: pci: tw686x: Set min_buffers_needed to 3
>>> media: amphion: Stop direct calls to queue num_buffers field
>>> media: coda: Stop direct calls to queue num_buffers field
>>> media: mediatek: vcodec: Stop direct calls to queue num_buffers
>>> field
>>> media: nxp: Stop direct calls to queue num_buffers field
>>> media: renesas: Set min_buffers_needed to 16
>>> media: ti: Use queue min_buffers_needed field to set the min
>>> number of
>>> buffers
>>> media: verisilicon: Stop direct calls to queue num_buffers field
>>> media: test-drivers: Stop direct calls to queue num_buffers field
>>> media: usb: airspy: Set min_buffers_needed to 8
>>> media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF
>>> media: usb: hackrf: Set min_buffers_needed to 8
>>> media: usb: usbtv: Set min_buffers_needed to 2
>>> media: atomisp: Stop direct calls to queue num_buffers field
>>> media: imx: Stop direct calls to queue num_buffers field
>>> media: meson: vdec: Stop direct calls to queue num_buffers field
>>> touchscreen: sur40: Stop direct calls to queue num_buffers field
>>> sample: v4l: Stop direct calls to queue num_buffers field
>>> media: cedrus: Stop direct calls to queue num_buffers field
>>> media: core: Rework how create_buf index returned value is computed
>>> media: core: Add bitmap manage bufs array entries
>>> media: core: Free range of buffers
>>> media: v4l2: Add DELETE_BUFS ioctl
>>> media: v4l2: Add mem2mem helpers for DELETE_BUFS ioctl
>>> media: test-drivers: Use helper for DELETE_BUFS ioctl
>>>
>>> .../userspace-api/media/v4l/user-func.rst | 1 +
>>> .../media/v4l/vidioc-create-bufs.rst | 8 +-
>>> .../media/v4l/vidioc-delete-bufs.rst | 80 +++
>>> .../media/v4l/vidioc-reqbufs.rst | 2 +
>>> drivers/input/touchscreen/sur40.c | 5 +-
>>> .../media/common/videobuf2/videobuf2-core.c | 556
>>> +++++++++++-------
>>> .../media/common/videobuf2/videobuf2-v4l2.c | 121 +++-
>>> drivers/media/dvb-core/dvb_vb2.c | 17 +-
>>> drivers/media/dvb-frontends/rtl2832_sdr.c | 9 +-
>>> drivers/media/i2c/video-i2c.c | 5 +-
>>> drivers/media/pci/cx18/cx18-streams.c | 13 +-
>>> drivers/media/pci/dt3155/dt3155.c | 2 -
>>> .../pci/netup_unidvb/netup_unidvb_core.c | 4 +-
>>> drivers/media/pci/tw68/tw68-video.c | 6 +-
>>> drivers/media/pci/tw686x/tw686x-video.c | 13 +-
>>> drivers/media/platform/amphion/vpu_dbg.c | 30 +-
>>> drivers/media/platform/amphion/vpu_v4l2.c | 4 +-
>>> .../media/platform/chips-media/coda-common.c | 2 +-
>>> .../platform/mediatek/jpeg/mtk_jpeg_core.c | 7 +-
>>> .../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c | 9 +-
>>> .../mediatek/vcodec/encoder/mtk_vcodec_enc.c | 2 +-
>>> drivers/media/platform/nxp/imx7-media-csi.c | 7 +-
>>> drivers/media/platform/renesas/rcar_drif.c | 8 +-
>>> drivers/media/platform/st/sti/hva/hva-v4l2.c | 9 +-
>>> .../media/platform/ti/am437x/am437x-vpfe.c | 7 +-
>>> drivers/media/platform/ti/cal/cal-video.c | 5 +-
>>> .../media/platform/ti/davinci/vpif_capture.c | 5 +-
>>> .../media/platform/ti/davinci/vpif_display.c | 5 +-
>>> drivers/media/platform/ti/omap/omap_vout.c | 5 +-
>>> drivers/media/platform/verisilicon/hantro.h | 9 +-
>>> .../media/platform/verisilicon/hantro_drv.c | 5 +-
>>> .../media/platform/verisilicon/hantro_g2.c | 14 +
>>> .../platform/verisilicon/hantro_g2_hevc_dec.c | 18 +-
>>> .../platform/verisilicon/hantro_g2_vp9_dec.c | 28 +-
>>> .../media/platform/verisilicon/hantro_hw.h | 7 +-
>>> .../platform/verisilicon/hantro_postproc.c | 93 ++-
>>> .../media/platform/verisilicon/hantro_v4l2.c | 27 +-
>>> .../media/test-drivers/vicodec/vicodec-core.c | 3 +
>>> drivers/media/test-drivers/vim2m.c | 2 +
>>> .../media/test-drivers/vimc/vimc-capture.c | 2 +
>>> drivers/media/test-drivers/visl/visl-dec.c | 32 +-
>>> drivers/media/test-drivers/visl/visl-video.c | 2 +
>>> drivers/media/test-drivers/vivid/vivid-core.c | 14 +
>>> .../media/test-drivers/vivid/vivid-meta-cap.c | 3 -
>>> .../media/test-drivers/vivid/vivid-meta-out.c | 5 +-
>>> .../test-drivers/vivid/vivid-touch-cap.c | 5 +-
>>> .../media/test-drivers/vivid/vivid-vbi-cap.c | 5 +-
>>> .../media/test-drivers/vivid/vivid-vbi-out.c | 5 +-
>>> .../media/test-drivers/vivid/vivid-vid-cap.c | 5 +-
>>> .../media/test-drivers/vivid/vivid-vid-out.c | 5 +-
>>> drivers/media/usb/airspy/airspy.c | 9 +-
>>> drivers/media/usb/cx231xx/cx231xx-417.c | 4 +-
>>> drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-
>>> drivers/media/usb/hackrf/hackrf.c | 9 +-
>>> drivers/media/usb/usbtv/usbtv-video.c | 3 +-
>>> drivers/media/v4l2-core/v4l2-dev.c | 1 +
>>> drivers/media/v4l2-core/v4l2-ioctl.c | 21 +-
>>> drivers/media/v4l2-core/v4l2-mem2mem.c | 20 +
>>> .../staging/media/atomisp/pci/atomisp_ioctl.c | 4 +-
>>> drivers/staging/media/imx/imx-media-capture.c | 7 +-
>>> drivers/staging/media/meson/vdec/vdec.c | 13 +-
>>> .../staging/media/sunxi/cedrus/cedrus_h264.c | 8 +-
>>> .../staging/media/sunxi/cedrus/cedrus_h265.c | 9 +-
>>> include/media/v4l2-ioctl.h | 4 +
>>> include/media/v4l2-mem2mem.h | 12 +
>>> include/media/videobuf2-core.h | 65 +-
>>> include/media/videobuf2-v4l2.h | 13 +
>>> include/uapi/linux/videodev2.h | 24 +-
>>> samples/v4l/v4l2-pci-skeleton.c | 5 +-
>>> 69 files changed, 969 insertions(+), 502 deletions(-)
>>> create mode 100644
>>> Documentation/userspace-api/media/v4l/vidioc-delete-bufs.rst
>>>
>> _______________________________________________
>> Kernel mailing list -- kernel@mailman.collabora.com
>> To unsubscribe send an email to kernel-leave@mailman.collabora.com
_______________________________________________
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^ permalink raw reply related [flat|nested] 190+ messages in thread
* Re: [PATCH v8 00/53] Add DELETE_BUF ioctl
2023-09-29 11:44 ` Benjamin Gaignard
(?)
@ 2023-09-29 13:17 ` Hans Verkuil
-1 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-09-29 13:17 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
On 29/09/2023 13:44, Benjamin Gaignard wrote:
>
> Le 28/09/2023 à 15:16, Benjamin Gaignard a écrit :
>>
>> Le 28/09/2023 à 15:04, Hans Verkuil a écrit :
>>> Hi Benjamin,
>>>
>>> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>>>> Unlike when resolution change on keyframes, dynamic resolution change
>>>> on inter frames doesn't allow to do a stream off/on sequence because
>>>> it is need to keep all previous references alive to decode inter frames.
>>>> This constraint have two main problems:
>>>> - more memory consumption.
>>>> - more buffers in use.
>>>> To solve these issue this series introduce DELETE_BUFS ioctl and remove
>>>> the 32 buffers limit per queue.
>>>>
>>>> VP9 conformance tests using fluster give a score of 210/305.
>>>> The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
>>>> but require to use postprocessor.
>>>>
>>>> Kernel branch is available here:
>>>> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
>>>>
>>>> GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
>>>> change is here:
>>>> https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
>>> I applied patches 1-46 on top of staging and applied patch 1/2 of v4l-utils. I chose
>>> 1-46 since those would be the first batch to be merged.
>>>
>>> I had to apply a small patch on top, since amphion was still using max_allowed_buffers:
>>>
>>> https://git.linuxtv.org/hverkuil/media_tree.git/commit/?h=delbuf&id=fce79aa0239a3a4e5c7634b9b7ffc356057b70b4
>>>
>>> With that change everything compiled cleanly.
>>>
>>> But running the regression tests (test-media script) failed with a kernel oops:
>>>
>>> Buffer ioctls (Input 0):
>>> fail: v4l2-test-buffers.cpp(611): q.reqbufs(node, 1)
>>> test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
>>> [ 25.309343] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN
>>> [ 25.310067] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
>>> [ 25.310471] CPU: 0 PID: 187 Comm: v4l2-compliance Not tainted 6.6.0-rc3+ #1
>>> [ 25.310837] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
>>> [ 25.311334] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
>>> [ 25.311688] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
>>> 0f 0b 4c 89 e8
>>> [ 25.312670] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
>>> [ 25.312948] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
>>> [ 25.313331] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
>>> [ 25.313708] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
>>> [ 25.314097] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
>>> [ 25.314470] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
>>> [ 25.314854] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
>>> [ 25.315281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>> [ 25.315594] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
>>> [ 25.315982] Call Trace:
>>> [ 25.316122] <TASK>
>>> [ 25.316243] ? die_addr+0x37/0xa0
>>> [ 25.316433] ? exc_general_protection+0x144/0x210
>>> [ 25.316693] ? asm_exc_general_protection+0x22/0x30
>>> [ 25.316955] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
>>> [ 25.317235] ? __vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
>>> [ 25.317555] vb2_core_create_bufs+0x5a0/0xce0 [videobuf2_common]
>>> [ 25.317879] ? __vb2_queue_alloc+0xd00/0xd00 [videobuf2_common]
>>> [ 25.318213] vb2_create_bufs+0x680/0x7f0 [videobuf2_v4l2]
>>> [ 25.318506] ? __kasan_kmalloc+0x83/0x90
>>> [ 25.318729] ? __kmalloc+0x5c/0x150
>>> [ 25.318924] ? __video_do_ioctl+0x3a5/0xc20 [videodev]
>>> [ 25.319223] ? __copy_timestamp+0x270/0x270 [videobuf2_v4l2]
>>> [ 25.319532] ? v4l_sanitize_format+0x121/0x340 [videodev]
>>> [ 25.319839] vb2_ioctl_create_bufs+0x280/0x440 [videobuf2_v4l2]
>>> [ 25.320162] ? check_fmt+0x15/0x5e0 [videodev]
>>> [ 25.320420] v4l_create_bufs+0xa8/0x150 [videodev]
>>> [ 25.320693] __video_do_ioctl+0x8d0/0xc20 [videodev]
>>> [ 25.320975] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
>>> [ 25.321250] ? __might_fault+0x112/0x170
>>> [ 25.321463] ? __might_fault+0x112/0x170
>>> [ 25.321675] video_usercopy+0x48c/0xd00 [videodev]
>>> [ 25.321949] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
>>> [ 25.322228] ? v4l_enumstd+0x60/0x60 [videodev]
>>> [ 25.322497] ? selinux_bprm_creds_for_exec+0xa90/0xa90
>>> [ 25.322779] ? rseq_ip_fixup+0x304/0x480
>>> [ 25.322995] ? __up_read+0x10b/0x750
>>> [ 25.323201] ? rseq_get_rseq_cs+0x680/0x680
>>> [ 25.323430] v4l2_ioctl+0x17f/0x1f0 [videodev]
>>> [ 25.323689] __x64_sys_ioctl+0x127/0x190
>>> [ 25.323905] do_syscall_64+0x35/0x80
>>> [ 25.324105] entry_SYSCALL_64_after_hwframe+0x46/0xb0
>>> [ 25.324372] RIP: 0033:0x7fa524bf44eb
>>> [ 25.324564] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b
>>> 04 25 28 00 00
>>> [ 25.325533] RSP: 002b:00007ffc888efee0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
>>> [ 25.325933] RAX: ffffffffffffffda RBX: 00007ffc888f0350 RCX: 00007fa524bf44eb
>>> [ 25.326314] RDX: 00007ffc888effb0 RSI: 00000000c100565c RDI: 0000000000000023
>>> [ 25.326702] RBP: 00007ffc888f8550 R08: 0000000000000000 R09: 0000000000000001
>>> [ 25.327081] R10: 0000000000000016 R11: 0000000000000246 R12: 0000000000000000
>>> [ 25.327468] R13: 0000000000000001 R14: 00007ffc888f8010 R15: 00007ffc888f1790
>>> [ 25.327852] </TASK>
>>> [ 25.327979] Modules linked in: vivid videobuf2_dma_contig v4l2_tpg v4l2_dv_timings cec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev videobuf2_common mc rc_core
>>> [ 25.328835] ---[ end trace 0000000000000000 ]---
>>> [ 25.329083] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
>>> [ 25.329434] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
>>> 0f 0b 4c 89 e8
>>> [ 25.330417] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
>>> [ 25.330812] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
>>> [ 25.331194] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
>>> [ 25.331594] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
>>> [ 25.331978] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
>>> [ 25.332360] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
>>> [ 25.332746] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
>>> [ 25.333170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>> [ 25.333486] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
>>> [ 25.333861] Kernel panic - not syncing: Fatal exception
>>> [ 25.334179] Kernel Offset: 0xbe00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
>>> [ 25.334748] Rebooting in 30 seconds..
>>>
>>> I use the build scripts as described here:
>>>
>>> https://lore.kernel.org/linux-media/18989016-6392-a77b-6cf7-1223c9161def@xs4all.nl/
>>>
>>> I use this command to run the regression tests:
>>>
>>> ./build.sh -virtme -virtme-utils-path /usr/local/bin none delbuf
>>>
>>> (delbuf is the name of my branch)
>>>
>>> I don't really want to spend time reviewing this series until this is fixed...
>>
>> Yes that make sense.
>> It will work on it and let you now when I had fix it.
>> Regards,
>> Benjamin
>
> This patch fix the problem:
>
> diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
> index 320f37e46343..0598c1e4e9b5 100644
> --- a/drivers/media/common/videobuf2/videobuf2-core.c
> +++ b/drivers/media/common/videobuf2/videobuf2-core.c
> @@ -428,6 +428,8 @@ static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, uns
> */
> static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
> {
> + if (vb->vb2_queue->num_buffers)
> + vb->vb2_queue->num_buffers--;
> vb->vb2_queue->bufs[vb->index] = NULL;
> vb->vb2_queue = NULL;
> }
> @@ -641,8 +643,8 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
> #endif
>
> /* Free vb2 buffers */
> - for (i = q->max_num_buffers, buffer = 0; i > 0 && buffer < buffers; i--) {
> - struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
> + for (i = q->max_num_buffers, buffer = 0; i >= 0 && buffer < buffers; i--) {
> + struct vb2_buffer *vb = vb2_get_buffer(q, i);
>
> if (!vb)
> continue;
> @@ -2541,6 +2543,7 @@ void vb2_core_queue_release(struct vb2_queue *q)
> __vb2_queue_free(q, q->max_num_buffers);
> kfree(q->bufs);
> q->bufs = NULL;
> + q->num_buffers = 0;
> mutex_unlock(&q->mmap_lock);
> }
> EXPORT_SYMBOL_GPL(vb2_core_queue_release);
>
> I'm preparing a v9 with this + your patch for Amphion driver:
>
> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v9
Even with this patch I still get errors. Did you just test vivid?
Run 'test-media mc' to test it for all virtual drivers. I get both compliance
failures, a WARN_ON in drivers/media/common/videobuf2/videobuf2-core.c:2489,
and memory leaks. It currently fails and exists completely with the vimc tests,
but things may already have gone pear-shaped with the vim2m test.
I'll mail you the full output from a test run with the build scripts
separately (it's a bit too big to add here).
I don't know if you can run the build script with the -virtme option, instructions
for that are currently only available for debian 12. If not, then ask Sebastian
Fricke (he is working on a docker for this), alternatively you can take
configs/virtme.config from the build scripts git repo and use that as the kernel
config to test under. This config enables memory leak detection and a whole bunch
of other debugging stuff.
Regards,
Hans
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 00/53] Add DELETE_BUF ioctl
@ 2023-09-29 13:17 ` Hans Verkuil
0 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-09-29 13:17 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
On 29/09/2023 13:44, Benjamin Gaignard wrote:
>
> Le 28/09/2023 à 15:16, Benjamin Gaignard a écrit :
>>
>> Le 28/09/2023 à 15:04, Hans Verkuil a écrit :
>>> Hi Benjamin,
>>>
>>> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>>>> Unlike when resolution change on keyframes, dynamic resolution change
>>>> on inter frames doesn't allow to do a stream off/on sequence because
>>>> it is need to keep all previous references alive to decode inter frames.
>>>> This constraint have two main problems:
>>>> - more memory consumption.
>>>> - more buffers in use.
>>>> To solve these issue this series introduce DELETE_BUFS ioctl and remove
>>>> the 32 buffers limit per queue.
>>>>
>>>> VP9 conformance tests using fluster give a score of 210/305.
>>>> The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
>>>> but require to use postprocessor.
>>>>
>>>> Kernel branch is available here:
>>>> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
>>>>
>>>> GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
>>>> change is here:
>>>> https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
>>> I applied patches 1-46 on top of staging and applied patch 1/2 of v4l-utils. I chose
>>> 1-46 since those would be the first batch to be merged.
>>>
>>> I had to apply a small patch on top, since amphion was still using max_allowed_buffers:
>>>
>>> https://git.linuxtv.org/hverkuil/media_tree.git/commit/?h=delbuf&id=fce79aa0239a3a4e5c7634b9b7ffc356057b70b4
>>>
>>> With that change everything compiled cleanly.
>>>
>>> But running the regression tests (test-media script) failed with a kernel oops:
>>>
>>> Buffer ioctls (Input 0):
>>> fail: v4l2-test-buffers.cpp(611): q.reqbufs(node, 1)
>>> test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
>>> [ 25.309343] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN
>>> [ 25.310067] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
>>> [ 25.310471] CPU: 0 PID: 187 Comm: v4l2-compliance Not tainted 6.6.0-rc3+ #1
>>> [ 25.310837] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
>>> [ 25.311334] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
>>> [ 25.311688] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
>>> 0f 0b 4c 89 e8
>>> [ 25.312670] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
>>> [ 25.312948] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
>>> [ 25.313331] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
>>> [ 25.313708] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
>>> [ 25.314097] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
>>> [ 25.314470] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
>>> [ 25.314854] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
>>> [ 25.315281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>> [ 25.315594] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
>>> [ 25.315982] Call Trace:
>>> [ 25.316122] <TASK>
>>> [ 25.316243] ? die_addr+0x37/0xa0
>>> [ 25.316433] ? exc_general_protection+0x144/0x210
>>> [ 25.316693] ? asm_exc_general_protection+0x22/0x30
>>> [ 25.316955] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
>>> [ 25.317235] ? __vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
>>> [ 25.317555] vb2_core_create_bufs+0x5a0/0xce0 [videobuf2_common]
>>> [ 25.317879] ? __vb2_queue_alloc+0xd00/0xd00 [videobuf2_common]
>>> [ 25.318213] vb2_create_bufs+0x680/0x7f0 [videobuf2_v4l2]
>>> [ 25.318506] ? __kasan_kmalloc+0x83/0x90
>>> [ 25.318729] ? __kmalloc+0x5c/0x150
>>> [ 25.318924] ? __video_do_ioctl+0x3a5/0xc20 [videodev]
>>> [ 25.319223] ? __copy_timestamp+0x270/0x270 [videobuf2_v4l2]
>>> [ 25.319532] ? v4l_sanitize_format+0x121/0x340 [videodev]
>>> [ 25.319839] vb2_ioctl_create_bufs+0x280/0x440 [videobuf2_v4l2]
>>> [ 25.320162] ? check_fmt+0x15/0x5e0 [videodev]
>>> [ 25.320420] v4l_create_bufs+0xa8/0x150 [videodev]
>>> [ 25.320693] __video_do_ioctl+0x8d0/0xc20 [videodev]
>>> [ 25.320975] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
>>> [ 25.321250] ? __might_fault+0x112/0x170
>>> [ 25.321463] ? __might_fault+0x112/0x170
>>> [ 25.321675] video_usercopy+0x48c/0xd00 [videodev]
>>> [ 25.321949] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
>>> [ 25.322228] ? v4l_enumstd+0x60/0x60 [videodev]
>>> [ 25.322497] ? selinux_bprm_creds_for_exec+0xa90/0xa90
>>> [ 25.322779] ? rseq_ip_fixup+0x304/0x480
>>> [ 25.322995] ? __up_read+0x10b/0x750
>>> [ 25.323201] ? rseq_get_rseq_cs+0x680/0x680
>>> [ 25.323430] v4l2_ioctl+0x17f/0x1f0 [videodev]
>>> [ 25.323689] __x64_sys_ioctl+0x127/0x190
>>> [ 25.323905] do_syscall_64+0x35/0x80
>>> [ 25.324105] entry_SYSCALL_64_after_hwframe+0x46/0xb0
>>> [ 25.324372] RIP: 0033:0x7fa524bf44eb
>>> [ 25.324564] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b
>>> 04 25 28 00 00
>>> [ 25.325533] RSP: 002b:00007ffc888efee0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
>>> [ 25.325933] RAX: ffffffffffffffda RBX: 00007ffc888f0350 RCX: 00007fa524bf44eb
>>> [ 25.326314] RDX: 00007ffc888effb0 RSI: 00000000c100565c RDI: 0000000000000023
>>> [ 25.326702] RBP: 00007ffc888f8550 R08: 0000000000000000 R09: 0000000000000001
>>> [ 25.327081] R10: 0000000000000016 R11: 0000000000000246 R12: 0000000000000000
>>> [ 25.327468] R13: 0000000000000001 R14: 00007ffc888f8010 R15: 00007ffc888f1790
>>> [ 25.327852] </TASK>
>>> [ 25.327979] Modules linked in: vivid videobuf2_dma_contig v4l2_tpg v4l2_dv_timings cec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev videobuf2_common mc rc_core
>>> [ 25.328835] ---[ end trace 0000000000000000 ]---
>>> [ 25.329083] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
>>> [ 25.329434] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
>>> 0f 0b 4c 89 e8
>>> [ 25.330417] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
>>> [ 25.330812] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
>>> [ 25.331194] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
>>> [ 25.331594] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
>>> [ 25.331978] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
>>> [ 25.332360] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
>>> [ 25.332746] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
>>> [ 25.333170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>> [ 25.333486] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
>>> [ 25.333861] Kernel panic - not syncing: Fatal exception
>>> [ 25.334179] Kernel Offset: 0xbe00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
>>> [ 25.334748] Rebooting in 30 seconds..
>>>
>>> I use the build scripts as described here:
>>>
>>> https://lore.kernel.org/linux-media/18989016-6392-a77b-6cf7-1223c9161def@xs4all.nl/
>>>
>>> I use this command to run the regression tests:
>>>
>>> ./build.sh -virtme -virtme-utils-path /usr/local/bin none delbuf
>>>
>>> (delbuf is the name of my branch)
>>>
>>> I don't really want to spend time reviewing this series until this is fixed...
>>
>> Yes that make sense.
>> It will work on it and let you now when I had fix it.
>> Regards,
>> Benjamin
>
> This patch fix the problem:
>
> diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
> index 320f37e46343..0598c1e4e9b5 100644
> --- a/drivers/media/common/videobuf2/videobuf2-core.c
> +++ b/drivers/media/common/videobuf2/videobuf2-core.c
> @@ -428,6 +428,8 @@ static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, uns
> */
> static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
> {
> + if (vb->vb2_queue->num_buffers)
> + vb->vb2_queue->num_buffers--;
> vb->vb2_queue->bufs[vb->index] = NULL;
> vb->vb2_queue = NULL;
> }
> @@ -641,8 +643,8 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
> #endif
>
> /* Free vb2 buffers */
> - for (i = q->max_num_buffers, buffer = 0; i > 0 && buffer < buffers; i--) {
> - struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
> + for (i = q->max_num_buffers, buffer = 0; i >= 0 && buffer < buffers; i--) {
> + struct vb2_buffer *vb = vb2_get_buffer(q, i);
>
> if (!vb)
> continue;
> @@ -2541,6 +2543,7 @@ void vb2_core_queue_release(struct vb2_queue *q)
> __vb2_queue_free(q, q->max_num_buffers);
> kfree(q->bufs);
> q->bufs = NULL;
> + q->num_buffers = 0;
> mutex_unlock(&q->mmap_lock);
> }
> EXPORT_SYMBOL_GPL(vb2_core_queue_release);
>
> I'm preparing a v9 with this + your patch for Amphion driver:
>
> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v9
Even with this patch I still get errors. Did you just test vivid?
Run 'test-media mc' to test it for all virtual drivers. I get both compliance
failures, a WARN_ON in drivers/media/common/videobuf2/videobuf2-core.c:2489,
and memory leaks. It currently fails and exists completely with the vimc tests,
but things may already have gone pear-shaped with the vim2m test.
I'll mail you the full output from a test run with the build scripts
separately (it's a bit too big to add here).
I don't know if you can run the build script with the -virtme option, instructions
for that are currently only available for debian 12. If not, then ask Sebastian
Fricke (he is working on a docker for this), alternatively you can take
configs/virtme.config from the build scripts git repo and use that as the kernel
config to test under. This config enables memory leak detection and a whole bunch
of other debugging stuff.
Regards,
Hans
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 00/53] Add DELETE_BUF ioctl
@ 2023-09-29 13:17 ` Hans Verkuil
0 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-09-29 13:17 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
On 29/09/2023 13:44, Benjamin Gaignard wrote:
>
> Le 28/09/2023 à 15:16, Benjamin Gaignard a écrit :
>>
>> Le 28/09/2023 à 15:04, Hans Verkuil a écrit :
>>> Hi Benjamin,
>>>
>>> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>>>> Unlike when resolution change on keyframes, dynamic resolution change
>>>> on inter frames doesn't allow to do a stream off/on sequence because
>>>> it is need to keep all previous references alive to decode inter frames.
>>>> This constraint have two main problems:
>>>> - more memory consumption.
>>>> - more buffers in use.
>>>> To solve these issue this series introduce DELETE_BUFS ioctl and remove
>>>> the 32 buffers limit per queue.
>>>>
>>>> VP9 conformance tests using fluster give a score of 210/305.
>>>> The 24 resize inter tests (vp90-2-21-resize_inter_* files) are ok
>>>> but require to use postprocessor.
>>>>
>>>> Kernel branch is available here:
>>>> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v8
>>>>
>>>> GStreamer branch to use DELETE_BUF ioctl and testing dynamic resolution
>>>> change is here:
>>>> https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer/-/commits/VP9_drc
>>> I applied patches 1-46 on top of staging and applied patch 1/2 of v4l-utils. I chose
>>> 1-46 since those would be the first batch to be merged.
>>>
>>> I had to apply a small patch on top, since amphion was still using max_allowed_buffers:
>>>
>>> https://git.linuxtv.org/hverkuil/media_tree.git/commit/?h=delbuf&id=fce79aa0239a3a4e5c7634b9b7ffc356057b70b4
>>>
>>> With that change everything compiled cleanly.
>>>
>>> But running the regression tests (test-media script) failed with a kernel oops:
>>>
>>> Buffer ioctls (Input 0):
>>> fail: v4l2-test-buffers.cpp(611): q.reqbufs(node, 1)
>>> test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
>>> [ 25.309343] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN
>>> [ 25.310067] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
>>> [ 25.310471] CPU: 0 PID: 187 Comm: v4l2-compliance Not tainted 6.6.0-rc3+ #1
>>> [ 25.310837] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
>>> [ 25.311334] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
>>> [ 25.311688] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
>>> 0f 0b 4c 89 e8
>>> [ 25.312670] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
>>> [ 25.312948] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
>>> [ 25.313331] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
>>> [ 25.313708] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
>>> [ 25.314097] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
>>> [ 25.314470] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
>>> [ 25.314854] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
>>> [ 25.315281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>> [ 25.315594] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
>>> [ 25.315982] Call Trace:
>>> [ 25.316122] <TASK>
>>> [ 25.316243] ? die_addr+0x37/0xa0
>>> [ 25.316433] ? exc_general_protection+0x144/0x210
>>> [ 25.316693] ? asm_exc_general_protection+0x22/0x30
>>> [ 25.316955] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
>>> [ 25.317235] ? __vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
>>> [ 25.317555] vb2_core_create_bufs+0x5a0/0xce0 [videobuf2_common]
>>> [ 25.317879] ? __vb2_queue_alloc+0xd00/0xd00 [videobuf2_common]
>>> [ 25.318213] vb2_create_bufs+0x680/0x7f0 [videobuf2_v4l2]
>>> [ 25.318506] ? __kasan_kmalloc+0x83/0x90
>>> [ 25.318729] ? __kmalloc+0x5c/0x150
>>> [ 25.318924] ? __video_do_ioctl+0x3a5/0xc20 [videodev]
>>> [ 25.319223] ? __copy_timestamp+0x270/0x270 [videobuf2_v4l2]
>>> [ 25.319532] ? v4l_sanitize_format+0x121/0x340 [videodev]
>>> [ 25.319839] vb2_ioctl_create_bufs+0x280/0x440 [videobuf2_v4l2]
>>> [ 25.320162] ? check_fmt+0x15/0x5e0 [videodev]
>>> [ 25.320420] v4l_create_bufs+0xa8/0x150 [videodev]
>>> [ 25.320693] __video_do_ioctl+0x8d0/0xc20 [videodev]
>>> [ 25.320975] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
>>> [ 25.321250] ? __might_fault+0x112/0x170
>>> [ 25.321463] ? __might_fault+0x112/0x170
>>> [ 25.321675] video_usercopy+0x48c/0xd00 [videodev]
>>> [ 25.321949] ? v4l_prepare_buf+0xa0/0xa0 [videodev]
>>> [ 25.322228] ? v4l_enumstd+0x60/0x60 [videodev]
>>> [ 25.322497] ? selinux_bprm_creds_for_exec+0xa90/0xa90
>>> [ 25.322779] ? rseq_ip_fixup+0x304/0x480
>>> [ 25.322995] ? __up_read+0x10b/0x750
>>> [ 25.323201] ? rseq_get_rseq_cs+0x680/0x680
>>> [ 25.323430] v4l2_ioctl+0x17f/0x1f0 [videodev]
>>> [ 25.323689] __x64_sys_ioctl+0x127/0x190
>>> [ 25.323905] do_syscall_64+0x35/0x80
>>> [ 25.324105] entry_SYSCALL_64_after_hwframe+0x46/0xb0
>>> [ 25.324372] RIP: 0033:0x7fa524bf44eb
>>> [ 25.324564] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b
>>> 04 25 28 00 00
>>> [ 25.325533] RSP: 002b:00007ffc888efee0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
>>> [ 25.325933] RAX: ffffffffffffffda RBX: 00007ffc888f0350 RCX: 00007fa524bf44eb
>>> [ 25.326314] RDX: 00007ffc888effb0 RSI: 00000000c100565c RDI: 0000000000000023
>>> [ 25.326702] RBP: 00007ffc888f8550 R08: 0000000000000000 R09: 0000000000000001
>>> [ 25.327081] R10: 0000000000000016 R11: 0000000000000246 R12: 0000000000000000
>>> [ 25.327468] R13: 0000000000000001 R14: 00007ffc888f8010 R15: 00007ffc888f1790
>>> [ 25.327852] </TASK>
>>> [ 25.327979] Modules linked in: vivid videobuf2_dma_contig v4l2_tpg v4l2_dv_timings cec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev videobuf2_common mc rc_core
>>> [ 25.328835] ---[ end trace 0000000000000000 ]---
>>> [ 25.329083] RIP: 0010:__vb2_queue_alloc+0x34c/0xd00 [videobuf2_common]
>>> [ 25.329434] Code: 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 0c 07 00 00 49 8b b7 40 01 00 00 44 89 f0 4c 8d 2c c6 41 39 ce 73 18 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 08 00 00 49 83 7d 00 00 74 02
>>> 0f 0b 4c 89 e8
>>> [ 25.330417] RSP: 0018:ffff88810afef930 EFLAGS: 00010212
>>> [ 25.330812] RAX: 0000000000000001 RBX: dffffc0000000000 RCX: 0000000000000040
>>> [ 25.331194] RDX: ffff88810ce08814 RSI: 0000000000000000 RDI: ffff88810cfb72e0
>>> [ 25.331594] RBP: ffff88810ce08800 R08: 0000000000001800 R09: 0000000000000001
>>> [ 25.331978] R10: ffffffff91560b0f R11: ffffffff8f40006a R12: ffff88810afefa74
>>> [ 25.332360] R13: 0000000000000008 R14: 0000000000000001 R15: ffff88810cfb71a0
>>> [ 25.332746] FS: 00007fa524908440(0000) GS:ffff88811aa00000(0000) knlGS:0000000000000000
>>> [ 25.333170] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>> [ 25.333486] CR2: 0000562855948270 CR3: 0000000109e21000 CR4: 0000000000350ef0
>>> [ 25.333861] Kernel panic - not syncing: Fatal exception
>>> [ 25.334179] Kernel Offset: 0xbe00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
>>> [ 25.334748] Rebooting in 30 seconds..
>>>
>>> I use the build scripts as described here:
>>>
>>> https://lore.kernel.org/linux-media/18989016-6392-a77b-6cf7-1223c9161def@xs4all.nl/
>>>
>>> I use this command to run the regression tests:
>>>
>>> ./build.sh -virtme -virtme-utils-path /usr/local/bin none delbuf
>>>
>>> (delbuf is the name of my branch)
>>>
>>> I don't really want to spend time reviewing this series until this is fixed...
>>
>> Yes that make sense.
>> It will work on it and let you now when I had fix it.
>> Regards,
>> Benjamin
>
> This patch fix the problem:
>
> diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
> index 320f37e46343..0598c1e4e9b5 100644
> --- a/drivers/media/common/videobuf2/videobuf2-core.c
> +++ b/drivers/media/common/videobuf2/videobuf2-core.c
> @@ -428,6 +428,8 @@ static void vb2_queue_add_buffer(struct vb2_queue *q, struct vb2_buffer *vb, uns
> */
> static void vb2_queue_remove_buffer(struct vb2_buffer *vb)
> {
> + if (vb->vb2_queue->num_buffers)
> + vb->vb2_queue->num_buffers--;
> vb->vb2_queue->bufs[vb->index] = NULL;
> vb->vb2_queue = NULL;
> }
> @@ -641,8 +643,8 @@ static void __vb2_queue_free(struct vb2_queue *q, unsigned int buffers)
> #endif
>
> /* Free vb2 buffers */
> - for (i = q->max_num_buffers, buffer = 0; i > 0 && buffer < buffers; i--) {
> - struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
> + for (i = q->max_num_buffers, buffer = 0; i >= 0 && buffer < buffers; i--) {
> + struct vb2_buffer *vb = vb2_get_buffer(q, i);
>
> if (!vb)
> continue;
> @@ -2541,6 +2543,7 @@ void vb2_core_queue_release(struct vb2_queue *q)
> __vb2_queue_free(q, q->max_num_buffers);
> kfree(q->bufs);
> q->bufs = NULL;
> + q->num_buffers = 0;
> mutex_unlock(&q->mmap_lock);
> }
> EXPORT_SYMBOL_GPL(vb2_core_queue_release);
>
> I'm preparing a v9 with this + your patch for Amphion driver:
>
> https://gitlab.collabora.com/benjamin.gaignard/for-upstream/-/commits/remove_vb2_queue_limit_v9
Even with this patch I still get errors. Did you just test vivid?
Run 'test-media mc' to test it for all virtual drivers. I get both compliance
failures, a WARN_ON in drivers/media/common/videobuf2/videobuf2-core.c:2489,
and memory leaks. It currently fails and exists completely with the vimc tests,
but things may already have gone pear-shaped with the vim2m test.
I'll mail you the full output from a test run with the build scripts
separately (it's a bit too big to add here).
I don't know if you can run the build script with the -virtme option, instructions
for that are currently only available for debian 12. If not, then ask Sebastian
Fricke (he is working on a docker for this), alternatively you can take
configs/virtme.config from the build scripts git repo and use that as the kernel
config to test under. This config enables memory leak detection and a whole bunch
of other debugging stuff.
Regards,
Hans
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 01/53] media: videobuf2: Rework offset 'cookie' encoding pattern
2023-09-27 15:35 ` Benjamin Gaignard
(?)
(?)
@ 2023-09-30 3:55 ` kernel test robot
-1 siblings, 0 replies; 190+ messages in thread
From: kernel test robot @ 2023-09-30 3:55 UTC (permalink / raw)
To: Benjamin Gaignard; +Cc: oe-kbuild-all
Hi Benjamin,
kernel test robot noticed the following build errors:
[auto build test ERROR on media-tree/master]
[also build test ERROR on sunxi/sunxi/for-next dtor-input/next dtor-input/for-linus linus/master v6.6-rc3 next-20230929]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Benjamin-Gaignard/media-videobuf2-Rework-offset-cookie-encoding-pattern/20230928-003247
base: git://linuxtv.org/media_tree.git master
patch link: https://lore.kernel.org/r/20230927153558.159278-2-benjamin.gaignard%40collabora.com
patch subject: [PATCH v8 01/53] media: videobuf2: Rework offset 'cookie' encoding pattern
config: powerpc64-randconfig-001-20230930 (https://download.01.org/0day-ci/archive/20230930/202309301123.yFQ6HRrA-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230930/202309301123.yFQ6HRrA-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309301123.yFQ6HRrA-lkp@intel.com/
All errors (new ones prefixed by >>):
>> drivers/media/common/videobuf2/videobuf2-core.c:39:2: error: #error Expected PAGE_SHIFT to be 12
39 | #error Expected PAGE_SHIFT to be 12
| ^~~~~
vim +39 drivers/media/common/videobuf2/videobuf2-core.c
37
38 #if PAGE_SHIFT != 12
> 39 #error Expected PAGE_SHIFT to be 12
40 #endif
41
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 50/53] media: core: Free range of buffers
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-30 5:09 ` kernel test robot
-1 siblings, 0 replies; 190+ messages in thread
From: kernel test robot @ 2023-09-30 5:09 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, hverkuil-cisco, nicolas.dufresne
Cc: oe-kbuild-all, linux-media, linux-kernel, linux-arm-kernel,
linux-mediatek, linux-arm-msm, linux-rockchip, linux-staging,
kernel, Benjamin Gaignard
Hi Benjamin,
kernel test robot noticed the following build errors:
[auto build test ERROR on media-tree/master]
[also build test ERROR on sunxi/sunxi/for-next dtor-input/next linus/master v6.6-rc3]
[cannot apply to dtor-input/for-linus next-20230929]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Benjamin-Gaignard/media-videobuf2-Rework-offset-cookie-encoding-pattern/20230928-003247
base: git://linuxtv.org/media_tree.git master
patch link: https://lore.kernel.org/r/20230927153558.159278-51-benjamin.gaignard%40collabora.com
patch subject: [PATCH v8 50/53] media: core: Free range of buffers
config: powerpc64-randconfig-001-20230930 (https://download.01.org/0day-ci/archive/20230930/202309301247.Y0hH4pjx-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230930/202309301247.Y0hH4pjx-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309301247.Y0hH4pjx-lkp@intel.com/
All errors (new ones prefixed by >>):
drivers/media/common/videobuf2/videobuf2-core.c:39:2: error: #error Expected PAGE_SHIFT to be 12
39 | #error Expected PAGE_SHIFT to be 12
| ^~~~~
drivers/media/common/videobuf2/videobuf2-core.c: In function '__vb2_queue_free':
>> drivers/media/common/videobuf2/videobuf2-core.c:596:14: error: 'buffer' undeclared (first use in this function)
596 | for (buffer = 0; buffer < q->max_num_buffers; buffer++) {
| ^~~~~~
drivers/media/common/videobuf2/videobuf2-core.c:596:14: note: each undeclared identifier is reported only once for each function it appears in
vim +/buffer +596 drivers/media/common/videobuf2/videobuf2-core.c
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 540
2a87af6ba1b9df drivers/media/v4l2-core/videobuf2-core.c Mauro Carvalho Chehab 2017-11-27 541 /*
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 542 * __vb2_queue_free() - free count buffers from start index of the queue - video memory and
2d86401c2cbfce drivers/media/video/videobuf2-core.c Guennadi Liakhovetski 2011-09-28 543 * related information, if no buffers are left return the queue to an
2d86401c2cbfce drivers/media/video/videobuf2-core.c Guennadi Liakhovetski 2011-09-28 544 * uninitialized state. Might be called even if the queue has already been freed.
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 545 */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 546 static void __vb2_queue_free(struct vb2_queue *q, unsigned int start, unsigned int count)
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 547 {
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 548 unsigned int i;
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 549
01cb370ff6c5ab drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-11-30 550 lockdep_assert_held(&q->mmap_lock);
63faabfd89f4db drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2013-12-13 551
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 552 /* Call driver-provided cleanup function for each buffer, if provided */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 553 for (i = start; i < q->max_num_buffers && i < start + count; i++) {
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 554 struct vb2_buffer *vb = vb2_get_buffer(q, i);
256f3162c17595 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 555
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 556 if (!vb)
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 557 continue;
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 558 if (vb->planes[0].mem_priv)
a1d36d8c705e10 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-03-17 559 call_void_vb_qop(vb, buf_cleanup, vb);
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 560 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 561
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 562 /* Release video buffer memory */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 563 __vb2_free_mem(q, start, count);
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 564
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 565 #ifdef CONFIG_VIDEO_ADV_DEBUG
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 566 /*
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 567 * Check that all the calls were balanced during the life-time of this
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 568 * queue. If not then dump the counters to the kernel log.
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 569 */
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 570 if (vb2_get_num_buffers(q)) {
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 571 bool unbalanced = q->cnt_start_streaming != q->cnt_stop_streaming ||
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 572 q->cnt_prepare_streaming != q->cnt_unprepare_streaming ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 573 q->cnt_wait_prepare != q->cnt_wait_finish;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 574
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 575 if (unbalanced) {
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 576 pr_info("unbalanced counters for queue %p:\n", q);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 577 if (q->cnt_start_streaming != q->cnt_stop_streaming)
2e33dbb06da407 drivers/media/common/videobuf/videobuf2-core.c Mauro Carvalho Chehab 2017-12-28 578 pr_info(" setup: %u start_streaming: %u stop_streaming: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 579 q->cnt_queue_setup, q->cnt_start_streaming,
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 580 q->cnt_stop_streaming);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 581 if (q->cnt_prepare_streaming != q->cnt_unprepare_streaming)
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 582 pr_info(" prepare_streaming: %u unprepare_streaming: %u\n",
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 583 q->cnt_prepare_streaming, q->cnt_unprepare_streaming);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 584 if (q->cnt_wait_prepare != q->cnt_wait_finish)
2e33dbb06da407 drivers/media/common/videobuf/videobuf2-core.c Mauro Carvalho Chehab 2017-12-28 585 pr_info(" wait_prepare: %u wait_finish: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 586 q->cnt_wait_prepare, q->cnt_wait_finish);
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 587 }
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 588 q->cnt_queue_setup = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 589 q->cnt_wait_prepare = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 590 q->cnt_wait_finish = 0;
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 591 q->cnt_prepare_streaming = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 592 q->cnt_start_streaming = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 593 q->cnt_stop_streaming = 0;
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 594 q->cnt_unprepare_streaming = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 595 }
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 @596 for (buffer = 0; buffer < q->max_num_buffers; buffer++) {
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 597 struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 598 bool unbalanced;
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 599
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 600 if (!vb)
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 601 continue;
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 602
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 603 unbalanced = vb->cnt_mem_alloc != vb->cnt_mem_put ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 604 vb->cnt_mem_prepare != vb->cnt_mem_finish ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 605 vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 606 vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 607 vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 608 vb->cnt_buf_queue != vb->cnt_buf_done ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 609 vb->cnt_buf_prepare != vb->cnt_buf_finish ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 610 vb->cnt_buf_init != vb->cnt_buf_cleanup;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 611
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 612 if (unbalanced) {
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 613 pr_info("unbalanced counters for queue %p, buffer %d:\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 614 q, buffer);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 615 if (vb->cnt_buf_init != vb->cnt_buf_cleanup)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 616 pr_info(" buf_init: %u buf_cleanup: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 617 vb->cnt_buf_init, vb->cnt_buf_cleanup);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 618 if (vb->cnt_buf_prepare != vb->cnt_buf_finish)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 619 pr_info(" buf_prepare: %u buf_finish: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 620 vb->cnt_buf_prepare, vb->cnt_buf_finish);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 621 if (vb->cnt_buf_queue != vb->cnt_buf_done)
28d77c21cbeb2c drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2019-01-16 622 pr_info(" buf_out_validate: %u buf_queue: %u buf_done: %u buf_request_complete: %u\n",
28d77c21cbeb2c drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2019-01-16 623 vb->cnt_buf_out_validate, vb->cnt_buf_queue,
28d77c21cbeb2c drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2019-01-16 624 vb->cnt_buf_done, vb->cnt_buf_request_complete);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 625 if (vb->cnt_mem_alloc != vb->cnt_mem_put)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 626 pr_info(" alloc: %u put: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 627 vb->cnt_mem_alloc, vb->cnt_mem_put);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 628 if (vb->cnt_mem_prepare != vb->cnt_mem_finish)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 629 pr_info(" prepare: %u finish: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 630 vb->cnt_mem_prepare, vb->cnt_mem_finish);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 631 if (vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr)
2e33dbb06da407 drivers/media/common/videobuf/videobuf2-core.c Mauro Carvalho Chehab 2017-12-28 632 pr_info(" get_userptr: %u put_userptr: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 633 vb->cnt_mem_get_userptr, vb->cnt_mem_put_userptr);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 634 if (vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 635 pr_info(" attach_dmabuf: %u detach_dmabuf: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 636 vb->cnt_mem_attach_dmabuf, vb->cnt_mem_detach_dmabuf);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 637 if (vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 638 pr_info(" map_dmabuf: %u unmap_dmabuf: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 639 vb->cnt_mem_map_dmabuf, vb->cnt_mem_unmap_dmabuf);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 640 pr_info(" get_dmabuf: %u num_users: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 641 vb->cnt_mem_get_dmabuf,
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 642 vb->cnt_mem_num_users);
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 643 }
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 644 }
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 645 #endif
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 646
3e947c36af524b drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-08-10 647 /* Free vb2 buffers */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 648 for (i = start; i < q->max_num_buffers && i < start + count; i++) {
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 649 struct vb2_buffer *vb = vb2_get_buffer(q, i);
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 650
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 651 if (!vb)
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 652 continue;
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 653
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 654 vb2_queue_remove_buffer(vb);
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 655 kfree(vb);
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 656 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 657
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 658 if (!vb2_get_num_buffers(q)) {
ce4686702f8f56 drivers/media/common/videobuf/videobuf2-core.c Satendra Singh Thakur 2017-12-28 659 q->memory = VB2_MEMORY_UNKNOWN;
bd50d999d4d4f3 drivers/media/video/videobuf2-core.c Marek Szyprowski 2011-10-25 660 INIT_LIST_HEAD(&q->queued_list);
a7afcaccfab2fb drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-02-24 661 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 662 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 663
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 50/53] media: core: Free range of buffers
@ 2023-09-30 5:09 ` kernel test robot
0 siblings, 0 replies; 190+ messages in thread
From: kernel test robot @ 2023-09-30 5:09 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, hverkuil-cisco, nicolas.dufresne
Cc: oe-kbuild-all, linux-media, linux-kernel, linux-arm-kernel,
linux-mediatek, linux-arm-msm, linux-rockchip, linux-staging,
kernel, Benjamin Gaignard
Hi Benjamin,
kernel test robot noticed the following build errors:
[auto build test ERROR on media-tree/master]
[also build test ERROR on sunxi/sunxi/for-next dtor-input/next linus/master v6.6-rc3]
[cannot apply to dtor-input/for-linus next-20230929]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Benjamin-Gaignard/media-videobuf2-Rework-offset-cookie-encoding-pattern/20230928-003247
base: git://linuxtv.org/media_tree.git master
patch link: https://lore.kernel.org/r/20230927153558.159278-51-benjamin.gaignard%40collabora.com
patch subject: [PATCH v8 50/53] media: core: Free range of buffers
config: powerpc64-randconfig-001-20230930 (https://download.01.org/0day-ci/archive/20230930/202309301247.Y0hH4pjx-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230930/202309301247.Y0hH4pjx-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309301247.Y0hH4pjx-lkp@intel.com/
All errors (new ones prefixed by >>):
drivers/media/common/videobuf2/videobuf2-core.c:39:2: error: #error Expected PAGE_SHIFT to be 12
39 | #error Expected PAGE_SHIFT to be 12
| ^~~~~
drivers/media/common/videobuf2/videobuf2-core.c: In function '__vb2_queue_free':
>> drivers/media/common/videobuf2/videobuf2-core.c:596:14: error: 'buffer' undeclared (first use in this function)
596 | for (buffer = 0; buffer < q->max_num_buffers; buffer++) {
| ^~~~~~
drivers/media/common/videobuf2/videobuf2-core.c:596:14: note: each undeclared identifier is reported only once for each function it appears in
vim +/buffer +596 drivers/media/common/videobuf2/videobuf2-core.c
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 540
2a87af6ba1b9df drivers/media/v4l2-core/videobuf2-core.c Mauro Carvalho Chehab 2017-11-27 541 /*
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 542 * __vb2_queue_free() - free count buffers from start index of the queue - video memory and
2d86401c2cbfce drivers/media/video/videobuf2-core.c Guennadi Liakhovetski 2011-09-28 543 * related information, if no buffers are left return the queue to an
2d86401c2cbfce drivers/media/video/videobuf2-core.c Guennadi Liakhovetski 2011-09-28 544 * uninitialized state. Might be called even if the queue has already been freed.
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 545 */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 546 static void __vb2_queue_free(struct vb2_queue *q, unsigned int start, unsigned int count)
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 547 {
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 548 unsigned int i;
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 549
01cb370ff6c5ab drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-11-30 550 lockdep_assert_held(&q->mmap_lock);
63faabfd89f4db drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2013-12-13 551
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 552 /* Call driver-provided cleanup function for each buffer, if provided */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 553 for (i = start; i < q->max_num_buffers && i < start + count; i++) {
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 554 struct vb2_buffer *vb = vb2_get_buffer(q, i);
256f3162c17595 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 555
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 556 if (!vb)
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 557 continue;
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 558 if (vb->planes[0].mem_priv)
a1d36d8c705e10 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-03-17 559 call_void_vb_qop(vb, buf_cleanup, vb);
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 560 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 561
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 562 /* Release video buffer memory */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 563 __vb2_free_mem(q, start, count);
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 564
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 565 #ifdef CONFIG_VIDEO_ADV_DEBUG
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 566 /*
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 567 * Check that all the calls were balanced during the life-time of this
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 568 * queue. If not then dump the counters to the kernel log.
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 569 */
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 570 if (vb2_get_num_buffers(q)) {
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 571 bool unbalanced = q->cnt_start_streaming != q->cnt_stop_streaming ||
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 572 q->cnt_prepare_streaming != q->cnt_unprepare_streaming ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 573 q->cnt_wait_prepare != q->cnt_wait_finish;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 574
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 575 if (unbalanced) {
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 576 pr_info("unbalanced counters for queue %p:\n", q);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 577 if (q->cnt_start_streaming != q->cnt_stop_streaming)
2e33dbb06da407 drivers/media/common/videobuf/videobuf2-core.c Mauro Carvalho Chehab 2017-12-28 578 pr_info(" setup: %u start_streaming: %u stop_streaming: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 579 q->cnt_queue_setup, q->cnt_start_streaming,
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 580 q->cnt_stop_streaming);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 581 if (q->cnt_prepare_streaming != q->cnt_unprepare_streaming)
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 582 pr_info(" prepare_streaming: %u unprepare_streaming: %u\n",
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 583 q->cnt_prepare_streaming, q->cnt_unprepare_streaming);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 584 if (q->cnt_wait_prepare != q->cnt_wait_finish)
2e33dbb06da407 drivers/media/common/videobuf/videobuf2-core.c Mauro Carvalho Chehab 2017-12-28 585 pr_info(" wait_prepare: %u wait_finish: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 586 q->cnt_wait_prepare, q->cnt_wait_finish);
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 587 }
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 588 q->cnt_queue_setup = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 589 q->cnt_wait_prepare = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 590 q->cnt_wait_finish = 0;
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 591 q->cnt_prepare_streaming = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 592 q->cnt_start_streaming = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 593 q->cnt_stop_streaming = 0;
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 594 q->cnt_unprepare_streaming = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 595 }
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 @596 for (buffer = 0; buffer < q->max_num_buffers; buffer++) {
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 597 struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 598 bool unbalanced;
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 599
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 600 if (!vb)
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 601 continue;
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 602
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 603 unbalanced = vb->cnt_mem_alloc != vb->cnt_mem_put ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 604 vb->cnt_mem_prepare != vb->cnt_mem_finish ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 605 vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 606 vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 607 vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 608 vb->cnt_buf_queue != vb->cnt_buf_done ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 609 vb->cnt_buf_prepare != vb->cnt_buf_finish ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 610 vb->cnt_buf_init != vb->cnt_buf_cleanup;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 611
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 612 if (unbalanced) {
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 613 pr_info("unbalanced counters for queue %p, buffer %d:\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 614 q, buffer);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 615 if (vb->cnt_buf_init != vb->cnt_buf_cleanup)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 616 pr_info(" buf_init: %u buf_cleanup: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 617 vb->cnt_buf_init, vb->cnt_buf_cleanup);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 618 if (vb->cnt_buf_prepare != vb->cnt_buf_finish)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 619 pr_info(" buf_prepare: %u buf_finish: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 620 vb->cnt_buf_prepare, vb->cnt_buf_finish);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 621 if (vb->cnt_buf_queue != vb->cnt_buf_done)
28d77c21cbeb2c drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2019-01-16 622 pr_info(" buf_out_validate: %u buf_queue: %u buf_done: %u buf_request_complete: %u\n",
28d77c21cbeb2c drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2019-01-16 623 vb->cnt_buf_out_validate, vb->cnt_buf_queue,
28d77c21cbeb2c drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2019-01-16 624 vb->cnt_buf_done, vb->cnt_buf_request_complete);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 625 if (vb->cnt_mem_alloc != vb->cnt_mem_put)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 626 pr_info(" alloc: %u put: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 627 vb->cnt_mem_alloc, vb->cnt_mem_put);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 628 if (vb->cnt_mem_prepare != vb->cnt_mem_finish)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 629 pr_info(" prepare: %u finish: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 630 vb->cnt_mem_prepare, vb->cnt_mem_finish);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 631 if (vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr)
2e33dbb06da407 drivers/media/common/videobuf/videobuf2-core.c Mauro Carvalho Chehab 2017-12-28 632 pr_info(" get_userptr: %u put_userptr: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 633 vb->cnt_mem_get_userptr, vb->cnt_mem_put_userptr);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 634 if (vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 635 pr_info(" attach_dmabuf: %u detach_dmabuf: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 636 vb->cnt_mem_attach_dmabuf, vb->cnt_mem_detach_dmabuf);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 637 if (vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 638 pr_info(" map_dmabuf: %u unmap_dmabuf: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 639 vb->cnt_mem_map_dmabuf, vb->cnt_mem_unmap_dmabuf);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 640 pr_info(" get_dmabuf: %u num_users: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 641 vb->cnt_mem_get_dmabuf,
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 642 vb->cnt_mem_num_users);
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 643 }
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 644 }
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 645 #endif
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 646
3e947c36af524b drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-08-10 647 /* Free vb2 buffers */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 648 for (i = start; i < q->max_num_buffers && i < start + count; i++) {
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 649 struct vb2_buffer *vb = vb2_get_buffer(q, i);
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 650
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 651 if (!vb)
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 652 continue;
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 653
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 654 vb2_queue_remove_buffer(vb);
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 655 kfree(vb);
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 656 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 657
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 658 if (!vb2_get_num_buffers(q)) {
ce4686702f8f56 drivers/media/common/videobuf/videobuf2-core.c Satendra Singh Thakur 2017-12-28 659 q->memory = VB2_MEMORY_UNKNOWN;
bd50d999d4d4f3 drivers/media/video/videobuf2-core.c Marek Szyprowski 2011-10-25 660 INIT_LIST_HEAD(&q->queued_list);
a7afcaccfab2fb drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-02-24 661 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 662 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 663
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 50/53] media: core: Free range of buffers
@ 2023-09-30 5:09 ` kernel test robot
0 siblings, 0 replies; 190+ messages in thread
From: kernel test robot @ 2023-09-30 5:09 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, hverkuil-cisco, nicolas.dufresne
Cc: oe-kbuild-all, linux-media, linux-kernel, linux-arm-kernel,
linux-mediatek, linux-arm-msm, linux-rockchip, linux-staging,
kernel, Benjamin Gaignard
Hi Benjamin,
kernel test robot noticed the following build errors:
[auto build test ERROR on media-tree/master]
[also build test ERROR on sunxi/sunxi/for-next dtor-input/next linus/master v6.6-rc3]
[cannot apply to dtor-input/for-linus next-20230929]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Benjamin-Gaignard/media-videobuf2-Rework-offset-cookie-encoding-pattern/20230928-003247
base: git://linuxtv.org/media_tree.git master
patch link: https://lore.kernel.org/r/20230927153558.159278-51-benjamin.gaignard%40collabora.com
patch subject: [PATCH v8 50/53] media: core: Free range of buffers
config: powerpc64-randconfig-001-20230930 (https://download.01.org/0day-ci/archive/20230930/202309301247.Y0hH4pjx-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230930/202309301247.Y0hH4pjx-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309301247.Y0hH4pjx-lkp@intel.com/
All errors (new ones prefixed by >>):
drivers/media/common/videobuf2/videobuf2-core.c:39:2: error: #error Expected PAGE_SHIFT to be 12
39 | #error Expected PAGE_SHIFT to be 12
| ^~~~~
drivers/media/common/videobuf2/videobuf2-core.c: In function '__vb2_queue_free':
>> drivers/media/common/videobuf2/videobuf2-core.c:596:14: error: 'buffer' undeclared (first use in this function)
596 | for (buffer = 0; buffer < q->max_num_buffers; buffer++) {
| ^~~~~~
drivers/media/common/videobuf2/videobuf2-core.c:596:14: note: each undeclared identifier is reported only once for each function it appears in
vim +/buffer +596 drivers/media/common/videobuf2/videobuf2-core.c
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 540
2a87af6ba1b9df drivers/media/v4l2-core/videobuf2-core.c Mauro Carvalho Chehab 2017-11-27 541 /*
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 542 * __vb2_queue_free() - free count buffers from start index of the queue - video memory and
2d86401c2cbfce drivers/media/video/videobuf2-core.c Guennadi Liakhovetski 2011-09-28 543 * related information, if no buffers are left return the queue to an
2d86401c2cbfce drivers/media/video/videobuf2-core.c Guennadi Liakhovetski 2011-09-28 544 * uninitialized state. Might be called even if the queue has already been freed.
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 545 */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 546 static void __vb2_queue_free(struct vb2_queue *q, unsigned int start, unsigned int count)
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 547 {
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 548 unsigned int i;
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 549
01cb370ff6c5ab drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-11-30 550 lockdep_assert_held(&q->mmap_lock);
63faabfd89f4db drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2013-12-13 551
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 552 /* Call driver-provided cleanup function for each buffer, if provided */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 553 for (i = start; i < q->max_num_buffers && i < start + count; i++) {
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 554 struct vb2_buffer *vb = vb2_get_buffer(q, i);
256f3162c17595 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 555
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 556 if (!vb)
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 557 continue;
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 558 if (vb->planes[0].mem_priv)
a1d36d8c705e10 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-03-17 559 call_void_vb_qop(vb, buf_cleanup, vb);
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 560 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 561
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 562 /* Release video buffer memory */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 563 __vb2_free_mem(q, start, count);
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 564
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 565 #ifdef CONFIG_VIDEO_ADV_DEBUG
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 566 /*
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 567 * Check that all the calls were balanced during the life-time of this
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 568 * queue. If not then dump the counters to the kernel log.
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 569 */
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 570 if (vb2_get_num_buffers(q)) {
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 571 bool unbalanced = q->cnt_start_streaming != q->cnt_stop_streaming ||
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 572 q->cnt_prepare_streaming != q->cnt_unprepare_streaming ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 573 q->cnt_wait_prepare != q->cnt_wait_finish;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 574
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 575 if (unbalanced) {
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 576 pr_info("unbalanced counters for queue %p:\n", q);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 577 if (q->cnt_start_streaming != q->cnt_stop_streaming)
2e33dbb06da407 drivers/media/common/videobuf/videobuf2-core.c Mauro Carvalho Chehab 2017-12-28 578 pr_info(" setup: %u start_streaming: %u stop_streaming: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 579 q->cnt_queue_setup, q->cnt_start_streaming,
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 580 q->cnt_stop_streaming);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 581 if (q->cnt_prepare_streaming != q->cnt_unprepare_streaming)
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 582 pr_info(" prepare_streaming: %u unprepare_streaming: %u\n",
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 583 q->cnt_prepare_streaming, q->cnt_unprepare_streaming);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 584 if (q->cnt_wait_prepare != q->cnt_wait_finish)
2e33dbb06da407 drivers/media/common/videobuf/videobuf2-core.c Mauro Carvalho Chehab 2017-12-28 585 pr_info(" wait_prepare: %u wait_finish: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 586 q->cnt_wait_prepare, q->cnt_wait_finish);
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 587 }
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 588 q->cnt_queue_setup = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 589 q->cnt_wait_prepare = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 590 q->cnt_wait_finish = 0;
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 591 q->cnt_prepare_streaming = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 592 q->cnt_start_streaming = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 593 q->cnt_stop_streaming = 0;
a10b2153257403 drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-06-22 594 q->cnt_unprepare_streaming = 0;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 595 }
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 @596 for (buffer = 0; buffer < q->max_num_buffers; buffer++) {
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 597 struct vb2_buffer *vb = vb2_get_buffer(q, buffer);
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 598 bool unbalanced;
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 599
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 600 if (!vb)
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 601 continue;
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 602
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 603 unbalanced = vb->cnt_mem_alloc != vb->cnt_mem_put ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 604 vb->cnt_mem_prepare != vb->cnt_mem_finish ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 605 vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 606 vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 607 vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 608 vb->cnt_buf_queue != vb->cnt_buf_done ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 609 vb->cnt_buf_prepare != vb->cnt_buf_finish ||
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 610 vb->cnt_buf_init != vb->cnt_buf_cleanup;
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 611
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 612 if (unbalanced) {
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 613 pr_info("unbalanced counters for queue %p, buffer %d:\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 614 q, buffer);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 615 if (vb->cnt_buf_init != vb->cnt_buf_cleanup)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 616 pr_info(" buf_init: %u buf_cleanup: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 617 vb->cnt_buf_init, vb->cnt_buf_cleanup);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 618 if (vb->cnt_buf_prepare != vb->cnt_buf_finish)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 619 pr_info(" buf_prepare: %u buf_finish: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 620 vb->cnt_buf_prepare, vb->cnt_buf_finish);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 621 if (vb->cnt_buf_queue != vb->cnt_buf_done)
28d77c21cbeb2c drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2019-01-16 622 pr_info(" buf_out_validate: %u buf_queue: %u buf_done: %u buf_request_complete: %u\n",
28d77c21cbeb2c drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2019-01-16 623 vb->cnt_buf_out_validate, vb->cnt_buf_queue,
28d77c21cbeb2c drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2019-01-16 624 vb->cnt_buf_done, vb->cnt_buf_request_complete);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 625 if (vb->cnt_mem_alloc != vb->cnt_mem_put)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 626 pr_info(" alloc: %u put: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 627 vb->cnt_mem_alloc, vb->cnt_mem_put);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 628 if (vb->cnt_mem_prepare != vb->cnt_mem_finish)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 629 pr_info(" prepare: %u finish: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 630 vb->cnt_mem_prepare, vb->cnt_mem_finish);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 631 if (vb->cnt_mem_get_userptr != vb->cnt_mem_put_userptr)
2e33dbb06da407 drivers/media/common/videobuf/videobuf2-core.c Mauro Carvalho Chehab 2017-12-28 632 pr_info(" get_userptr: %u put_userptr: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 633 vb->cnt_mem_get_userptr, vb->cnt_mem_put_userptr);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 634 if (vb->cnt_mem_attach_dmabuf != vb->cnt_mem_detach_dmabuf)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 635 pr_info(" attach_dmabuf: %u detach_dmabuf: %u\n",
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 636 vb->cnt_mem_attach_dmabuf, vb->cnt_mem_detach_dmabuf);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 637 if (vb->cnt_mem_map_dmabuf != vb->cnt_mem_unmap_dmabuf)
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 638 pr_info(" map_dmabuf: %u unmap_dmabuf: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 639 vb->cnt_mem_map_dmabuf, vb->cnt_mem_unmap_dmabuf);
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 640 pr_info(" get_dmabuf: %u num_users: %u\n",
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 641 vb->cnt_mem_get_dmabuf,
14700b816b3d49 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 642 vb->cnt_mem_num_users);
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 643 }
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 644 }
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 645 #endif
b5b4541eef8eac drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-01-29 646
3e947c36af524b drivers/media/common/videobuf2/videobuf2-core.c Hans Verkuil 2022-08-10 647 /* Free vb2 buffers */
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 648 for (i = start; i < q->max_num_buffers && i < start + count; i++) {
de4be4166a32b9 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 649 struct vb2_buffer *vb = vb2_get_buffer(q, i);
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 650
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 651 if (!vb)
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 652 continue;
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 653
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 654 vb2_queue_remove_buffer(vb);
145085ced318ad drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 655 kfree(vb);
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 656 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 657
6e57b95def5189 drivers/media/common/videobuf2/videobuf2-core.c Benjamin Gaignard 2023-09-27 658 if (!vb2_get_num_buffers(q)) {
ce4686702f8f56 drivers/media/common/videobuf/videobuf2-core.c Satendra Singh Thakur 2017-12-28 659 q->memory = VB2_MEMORY_UNKNOWN;
bd50d999d4d4f3 drivers/media/video/videobuf2-core.c Marek Szyprowski 2011-10-25 660 INIT_LIST_HEAD(&q->queued_list);
a7afcaccfab2fb drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-02-24 661 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 662 }
e23ccc0ad92586 drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 663
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 01/53] media: videobuf2: Rework offset 'cookie' encoding pattern
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-09-30 8:52 ` Hans Verkuil
-1 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-09-30 8:52 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
On 27/09/2023 17:35, Benjamin Gaignard wrote:
> Change how offset 'cookie' field value is computed to make possible
> to use more buffers (up to 0x7fff)
> With this encoding pattern we know the maximum number that a queue
> could store so we can check ing at queue init time.
> It also make easier and faster to find buffer and plane from using
> the offset field.
> Change __find_plane_by_offset() prototype to return the video buffer
> itself rather than it index.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
> ---
> .../media/common/videobuf2/videobuf2-core.c | 74 +++++++++----------
> 1 file changed, 35 insertions(+), 39 deletions(-)
>
> diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
> index cf6727d9c81f..6eeddb3a01c7 100644
> --- a/drivers/media/common/videobuf2/videobuf2-core.c
> +++ b/drivers/media/common/videobuf2/videobuf2-core.c
> @@ -31,6 +31,14 @@
>
> #include <trace/events/vb2.h>
>
> +#define PLANE_INDEX_SHIFT (PAGE_SHIFT + 3)
> +#define PLANE_INDEX_MASK 0x7
> +#define BUFFER_INDEX_MASK 0x7fff
> +
> +#if PAGE_SHIFT != 12
> +#error Expected PAGE_SHIFT to be 12
So it turns out this can actually be something other than 12.
Search for CONFIG_ARM64_PAGE_SHIFT and CONFIG_PPC_PAGE_SHIFT.
arm64 supports 12, 14, 16 and powerpc64 supports 12, 14, 16, 18.
I think we should calculate the BUFFER_INDEX_MASK based on the
PAGE_SHIFT value. Even with a PAGE_SHIFT of 18, you can still
allocate up to 512 buffers.
Regards,
Hans
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 01/53] media: videobuf2: Rework offset 'cookie' encoding pattern
@ 2023-09-30 8:52 ` Hans Verkuil
0 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-09-30 8:52 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
On 27/09/2023 17:35, Benjamin Gaignard wrote:
> Change how offset 'cookie' field value is computed to make possible
> to use more buffers (up to 0x7fff)
> With this encoding pattern we know the maximum number that a queue
> could store so we can check ing at queue init time.
> It also make easier and faster to find buffer and plane from using
> the offset field.
> Change __find_plane_by_offset() prototype to return the video buffer
> itself rather than it index.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
> ---
> .../media/common/videobuf2/videobuf2-core.c | 74 +++++++++----------
> 1 file changed, 35 insertions(+), 39 deletions(-)
>
> diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
> index cf6727d9c81f..6eeddb3a01c7 100644
> --- a/drivers/media/common/videobuf2/videobuf2-core.c
> +++ b/drivers/media/common/videobuf2/videobuf2-core.c
> @@ -31,6 +31,14 @@
>
> #include <trace/events/vb2.h>
>
> +#define PLANE_INDEX_SHIFT (PAGE_SHIFT + 3)
> +#define PLANE_INDEX_MASK 0x7
> +#define BUFFER_INDEX_MASK 0x7fff
> +
> +#if PAGE_SHIFT != 12
> +#error Expected PAGE_SHIFT to be 12
So it turns out this can actually be something other than 12.
Search for CONFIG_ARM64_PAGE_SHIFT and CONFIG_PPC_PAGE_SHIFT.
arm64 supports 12, 14, 16 and powerpc64 supports 12, 14, 16, 18.
I think we should calculate the BUFFER_INDEX_MASK based on the
PAGE_SHIFT value. Even with a PAGE_SHIFT of 18, you can still
allocate up to 512 buffers.
Regards,
Hans
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 01/53] media: videobuf2: Rework offset 'cookie' encoding pattern
@ 2023-09-30 8:52 ` Hans Verkuil
0 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-09-30 8:52 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
On 27/09/2023 17:35, Benjamin Gaignard wrote:
> Change how offset 'cookie' field value is computed to make possible
> to use more buffers (up to 0x7fff)
> With this encoding pattern we know the maximum number that a queue
> could store so we can check ing at queue init time.
> It also make easier and faster to find buffer and plane from using
> the offset field.
> Change __find_plane_by_offset() prototype to return the video buffer
> itself rather than it index.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
> ---
> .../media/common/videobuf2/videobuf2-core.c | 74 +++++++++----------
> 1 file changed, 35 insertions(+), 39 deletions(-)
>
> diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
> index cf6727d9c81f..6eeddb3a01c7 100644
> --- a/drivers/media/common/videobuf2/videobuf2-core.c
> +++ b/drivers/media/common/videobuf2/videobuf2-core.c
> @@ -31,6 +31,14 @@
>
> #include <trace/events/vb2.h>
>
> +#define PLANE_INDEX_SHIFT (PAGE_SHIFT + 3)
> +#define PLANE_INDEX_MASK 0x7
> +#define BUFFER_INDEX_MASK 0x7fff
> +
> +#if PAGE_SHIFT != 12
> +#error Expected PAGE_SHIFT to be 12
So it turns out this can actually be something other than 12.
Search for CONFIG_ARM64_PAGE_SHIFT and CONFIG_PPC_PAGE_SHIFT.
arm64 supports 12, 14, 16 and powerpc64 supports 12, 14, 16, 18.
I think we should calculate the BUFFER_INDEX_MASK based on the
PAGE_SHIFT value. Even with a PAGE_SHIFT of 18, you can still
allocate up to 512 buffers.
Regards,
Hans
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 13/53] media: Report the maximum possible number of buffers for the queue
2023-09-27 15:35 ` Benjamin Gaignard
(?)
@ 2023-10-02 13:37 ` Hans Verkuil
-1 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-10-02 13:37 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
On 27/09/2023 17:35, Benjamin Gaignard wrote:
> Use one of the struct v4l2_create_buffers reserved bytes to report
> the maximum possible number of buffers for the queue.
> V4l2 framework set V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS flags in queue
> capabilities so userland can know when the field is valid.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
> ---
> .../userspace-api/media/v4l/vidioc-create-bufs.rst | 8 ++++++--
> Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1 +
> drivers/media/common/videobuf2/videobuf2-v4l2.c | 9 +++++++--
> drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++--
> include/uapi/linux/videodev2.h | 7 ++++++-
> 5 files changed, 22 insertions(+), 7 deletions(-)
>
> diff --git a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
> index a048a9f6b7b6..1a46549e7462 100644
> --- a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
> +++ b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
> @@ -116,9 +116,13 @@ than the number requested.
> - ``flags``
> - Specifies additional buffer management attributes.
> See :ref:`memory-flags`.
> -
> * - __u32
> - - ``reserved``\ [6]
> + - ``max_buffers``
> + - If V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
> + this field indicate the maximum possible number of buffers
> + for this queue.
> + * - __u32
> + - ``reserved``\ [5]
> - A place holder for future extensions. Drivers and applications
> must set the array to zero.
>
> diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
> index 099fa6695167..0395187e1a5a 100644
> --- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
> +++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
> @@ -120,6 +120,7 @@ aborting or finishing any DMA in progress, an implicit
> .. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
> .. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
> .. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
> +.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
>
> .. raw:: latex
>
> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> index 278ea1107b01..655133f1ae2b 100644
> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> @@ -686,6 +686,7 @@ EXPORT_SYMBOL(vb2_querybuf);
> static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
> {
> *caps = V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS;
> + *caps |= V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS;
> if (q->io_modes & VB2_MMAP)
> *caps |= V4L2_BUF_CAP_SUPPORTS_MMAP;
> if (q->io_modes & VB2_USERPTR)
> @@ -767,9 +768,13 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
>
> fill_buf_caps(q, &create->capabilities);
> validate_memory_flags(q, create->memory, &create->flags);
> - create->index = q->num_buffers;
> - if (create->count == 0)
> +
> + create->max_buffers = q->max_num_buffers;
> +
> + if (create->count == 0) {
> + create->index = vb2_get_num_buffers(q);
This breaks git bisect: this function isn't introduced until patch 21/53.
Note: with the build scripts you can just run it with:
./build.sh -patches 53 ...
and it will apply each patch in sequence and attempt to compile it.
Regards,
Hans
> return ret != -EBUSY ? ret : 0;
> + }
>
> switch (f->type) {
> case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
> index f4d9d6279094..700db197e371 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -483,9 +483,9 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
> {
> const struct v4l2_create_buffers *p = arg;
>
> - pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, ",
> + pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, max buffers=%u",
> p->index, p->count, prt_names(p->memory, v4l2_memory_names),
> - p->capabilities);
> + p->capabilities, p->max_buffers);
> v4l_print_format(&p->format, write_only);
> }
>
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index 78260e5d9985..b0dbb1be728c 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -1034,6 +1034,7 @@ struct v4l2_requestbuffers {
> #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
> #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
> #define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
> +#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
>
> /**
> * struct v4l2_plane - plane info for multi-planar buffers
> @@ -2604,6 +2605,9 @@ struct v4l2_dbg_chip_info {
> * @flags: additional buffer management attributes (ignored unless the
> * queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
> * and configured for MMAP streaming I/O).
> + * @max_buffers: if V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
> + * this field indicate the maximum possible number of buffers
> + * for this queue.
> * @reserved: future extensions
> */
> struct v4l2_create_buffers {
> @@ -2613,7 +2617,8 @@ struct v4l2_create_buffers {
> struct v4l2_format format;
> __u32 capabilities;
> __u32 flags;
> - __u32 reserved[6];
> + __u32 max_buffers;
> + __u32 reserved[5];
> };
>
> /*
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 13/53] media: Report the maximum possible number of buffers for the queue
@ 2023-10-02 13:37 ` Hans Verkuil
0 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-10-02 13:37 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
On 27/09/2023 17:35, Benjamin Gaignard wrote:
> Use one of the struct v4l2_create_buffers reserved bytes to report
> the maximum possible number of buffers for the queue.
> V4l2 framework set V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS flags in queue
> capabilities so userland can know when the field is valid.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
> ---
> .../userspace-api/media/v4l/vidioc-create-bufs.rst | 8 ++++++--
> Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1 +
> drivers/media/common/videobuf2/videobuf2-v4l2.c | 9 +++++++--
> drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++--
> include/uapi/linux/videodev2.h | 7 ++++++-
> 5 files changed, 22 insertions(+), 7 deletions(-)
>
> diff --git a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
> index a048a9f6b7b6..1a46549e7462 100644
> --- a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
> +++ b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
> @@ -116,9 +116,13 @@ than the number requested.
> - ``flags``
> - Specifies additional buffer management attributes.
> See :ref:`memory-flags`.
> -
> * - __u32
> - - ``reserved``\ [6]
> + - ``max_buffers``
> + - If V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
> + this field indicate the maximum possible number of buffers
> + for this queue.
> + * - __u32
> + - ``reserved``\ [5]
> - A place holder for future extensions. Drivers and applications
> must set the array to zero.
>
> diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
> index 099fa6695167..0395187e1a5a 100644
> --- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
> +++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
> @@ -120,6 +120,7 @@ aborting or finishing any DMA in progress, an implicit
> .. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
> .. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
> .. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
> +.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
>
> .. raw:: latex
>
> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> index 278ea1107b01..655133f1ae2b 100644
> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> @@ -686,6 +686,7 @@ EXPORT_SYMBOL(vb2_querybuf);
> static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
> {
> *caps = V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS;
> + *caps |= V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS;
> if (q->io_modes & VB2_MMAP)
> *caps |= V4L2_BUF_CAP_SUPPORTS_MMAP;
> if (q->io_modes & VB2_USERPTR)
> @@ -767,9 +768,13 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
>
> fill_buf_caps(q, &create->capabilities);
> validate_memory_flags(q, create->memory, &create->flags);
> - create->index = q->num_buffers;
> - if (create->count == 0)
> +
> + create->max_buffers = q->max_num_buffers;
> +
> + if (create->count == 0) {
> + create->index = vb2_get_num_buffers(q);
This breaks git bisect: this function isn't introduced until patch 21/53.
Note: with the build scripts you can just run it with:
./build.sh -patches 53 ...
and it will apply each patch in sequence and attempt to compile it.
Regards,
Hans
> return ret != -EBUSY ? ret : 0;
> + }
>
> switch (f->type) {
> case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
> index f4d9d6279094..700db197e371 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -483,9 +483,9 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
> {
> const struct v4l2_create_buffers *p = arg;
>
> - pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, ",
> + pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, max buffers=%u",
> p->index, p->count, prt_names(p->memory, v4l2_memory_names),
> - p->capabilities);
> + p->capabilities, p->max_buffers);
> v4l_print_format(&p->format, write_only);
> }
>
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index 78260e5d9985..b0dbb1be728c 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -1034,6 +1034,7 @@ struct v4l2_requestbuffers {
> #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
> #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
> #define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
> +#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
>
> /**
> * struct v4l2_plane - plane info for multi-planar buffers
> @@ -2604,6 +2605,9 @@ struct v4l2_dbg_chip_info {
> * @flags: additional buffer management attributes (ignored unless the
> * queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
> * and configured for MMAP streaming I/O).
> + * @max_buffers: if V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
> + * this field indicate the maximum possible number of buffers
> + * for this queue.
> * @reserved: future extensions
> */
> struct v4l2_create_buffers {
> @@ -2613,7 +2617,8 @@ struct v4l2_create_buffers {
> struct v4l2_format format;
> __u32 capabilities;
> __u32 flags;
> - __u32 reserved[6];
> + __u32 max_buffers;
> + __u32 reserved[5];
> };
>
> /*
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 13/53] media: Report the maximum possible number of buffers for the queue
@ 2023-10-02 13:37 ` Hans Verkuil
0 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-10-02 13:37 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
On 27/09/2023 17:35, Benjamin Gaignard wrote:
> Use one of the struct v4l2_create_buffers reserved bytes to report
> the maximum possible number of buffers for the queue.
> V4l2 framework set V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS flags in queue
> capabilities so userland can know when the field is valid.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
> ---
> .../userspace-api/media/v4l/vidioc-create-bufs.rst | 8 ++++++--
> Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1 +
> drivers/media/common/videobuf2/videobuf2-v4l2.c | 9 +++++++--
> drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++--
> include/uapi/linux/videodev2.h | 7 ++++++-
> 5 files changed, 22 insertions(+), 7 deletions(-)
>
> diff --git a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
> index a048a9f6b7b6..1a46549e7462 100644
> --- a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
> +++ b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
> @@ -116,9 +116,13 @@ than the number requested.
> - ``flags``
> - Specifies additional buffer management attributes.
> See :ref:`memory-flags`.
> -
> * - __u32
> - - ``reserved``\ [6]
> + - ``max_buffers``
> + - If V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
> + this field indicate the maximum possible number of buffers
> + for this queue.
> + * - __u32
> + - ``reserved``\ [5]
> - A place holder for future extensions. Drivers and applications
> must set the array to zero.
>
> diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
> index 099fa6695167..0395187e1a5a 100644
> --- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
> +++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
> @@ -120,6 +120,7 @@ aborting or finishing any DMA in progress, an implicit
> .. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
> .. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
> .. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
> +.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
>
> .. raw:: latex
>
> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> index 278ea1107b01..655133f1ae2b 100644
> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> @@ -686,6 +686,7 @@ EXPORT_SYMBOL(vb2_querybuf);
> static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
> {
> *caps = V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS;
> + *caps |= V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS;
> if (q->io_modes & VB2_MMAP)
> *caps |= V4L2_BUF_CAP_SUPPORTS_MMAP;
> if (q->io_modes & VB2_USERPTR)
> @@ -767,9 +768,13 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
>
> fill_buf_caps(q, &create->capabilities);
> validate_memory_flags(q, create->memory, &create->flags);
> - create->index = q->num_buffers;
> - if (create->count == 0)
> +
> + create->max_buffers = q->max_num_buffers;
> +
> + if (create->count == 0) {
> + create->index = vb2_get_num_buffers(q);
This breaks git bisect: this function isn't introduced until patch 21/53.
Note: with the build scripts you can just run it with:
./build.sh -patches 53 ...
and it will apply each patch in sequence and attempt to compile it.
Regards,
Hans
> return ret != -EBUSY ? ret : 0;
> + }
>
> switch (f->type) {
> case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
> index f4d9d6279094..700db197e371 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -483,9 +483,9 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
> {
> const struct v4l2_create_buffers *p = arg;
>
> - pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, ",
> + pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, max buffers=%u",
> p->index, p->count, prt_names(p->memory, v4l2_memory_names),
> - p->capabilities);
> + p->capabilities, p->max_buffers);
> v4l_print_format(&p->format, write_only);
> }
>
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index 78260e5d9985..b0dbb1be728c 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -1034,6 +1034,7 @@ struct v4l2_requestbuffers {
> #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
> #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
> #define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
> +#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
>
> /**
> * struct v4l2_plane - plane info for multi-planar buffers
> @@ -2604,6 +2605,9 @@ struct v4l2_dbg_chip_info {
> * @flags: additional buffer management attributes (ignored unless the
> * queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
> * and configured for MMAP streaming I/O).
> + * @max_buffers: if V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
> + * this field indicate the maximum possible number of buffers
> + * for this queue.
> * @reserved: future extensions
> */
> struct v4l2_create_buffers {
> @@ -2613,7 +2617,8 @@ struct v4l2_create_buffers {
> struct v4l2_format format;
> __u32 capabilities;
> __u32 flags;
> - __u32 reserved[6];
> + __u32 max_buffers;
> + __u32 reserved[5];
> };
>
> /*
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 13/53] media: Report the maximum possible number of buffers for the queue
2023-10-02 13:37 ` Hans Verkuil
(?)
@ 2023-10-02 13:46 ` Benjamin Gaignard
-1 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-10-02 13:46 UTC (permalink / raw)
To: Hans Verkuil, mchehab, tfiga, m.szyprowski, ming.qian, ezequiel,
p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
Le 02/10/2023 à 15:37, Hans Verkuil a écrit :
> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>> Use one of the struct v4l2_create_buffers reserved bytes to report
>> the maximum possible number of buffers for the queue.
>> V4l2 framework set V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS flags in queue
>> capabilities so userland can know when the field is valid.
>>
>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
>> ---
>> .../userspace-api/media/v4l/vidioc-create-bufs.rst | 8 ++++++--
>> Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1 +
>> drivers/media/common/videobuf2/videobuf2-v4l2.c | 9 +++++++--
>> drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++--
>> include/uapi/linux/videodev2.h | 7 ++++++-
>> 5 files changed, 22 insertions(+), 7 deletions(-)
>>
>> diff --git a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>> index a048a9f6b7b6..1a46549e7462 100644
>> --- a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>> +++ b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>> @@ -116,9 +116,13 @@ than the number requested.
>> - ``flags``
>> - Specifies additional buffer management attributes.
>> See :ref:`memory-flags`.
>> -
>> * - __u32
>> - - ``reserved``\ [6]
>> + - ``max_buffers``
>> + - If V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
>> + this field indicate the maximum possible number of buffers
>> + for this queue.
>> + * - __u32
>> + - ``reserved``\ [5]
>> - A place holder for future extensions. Drivers and applications
>> must set the array to zero.
>>
>> diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>> index 099fa6695167..0395187e1a5a 100644
>> --- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>> +++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>> @@ -120,6 +120,7 @@ aborting or finishing any DMA in progress, an implicit
>> .. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
>> .. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
>> .. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
>> +.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
>>
>> .. raw:: latex
>>
>> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>> index 278ea1107b01..655133f1ae2b 100644
>> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
>> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>> @@ -686,6 +686,7 @@ EXPORT_SYMBOL(vb2_querybuf);
>> static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
>> {
>> *caps = V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS;
>> + *caps |= V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS;
>> if (q->io_modes & VB2_MMAP)
>> *caps |= V4L2_BUF_CAP_SUPPORTS_MMAP;
>> if (q->io_modes & VB2_USERPTR)
>> @@ -767,9 +768,13 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
>>
>> fill_buf_caps(q, &create->capabilities);
>> validate_memory_flags(q, create->memory, &create->flags);
>> - create->index = q->num_buffers;
>> - if (create->count == 0)
>> +
>> + create->max_buffers = q->max_num_buffers;
>> +
>> + if (create->count == 0) {
>> + create->index = vb2_get_num_buffers(q);
> This breaks git bisect: this function isn't introduced until patch 21/53.
>
> Note: with the build scripts you can just run it with:
>
> ./build.sh -patches 53 ...
>
> and it will apply each patch in sequence and attempt to compile it.
It should be create->index = q->num_buffers;
The error is also in v9...
>
> Regards,
>
> Hans
>
>> return ret != -EBUSY ? ret : 0;
>> + }
>>
>> switch (f->type) {
>> case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
>> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
>> index f4d9d6279094..700db197e371 100644
>> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
>> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
>> @@ -483,9 +483,9 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
>> {
>> const struct v4l2_create_buffers *p = arg;
>>
>> - pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, ",
>> + pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, max buffers=%u",
>> p->index, p->count, prt_names(p->memory, v4l2_memory_names),
>> - p->capabilities);
>> + p->capabilities, p->max_buffers);
>> v4l_print_format(&p->format, write_only);
>> }
>>
>> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
>> index 78260e5d9985..b0dbb1be728c 100644
>> --- a/include/uapi/linux/videodev2.h
>> +++ b/include/uapi/linux/videodev2.h
>> @@ -1034,6 +1034,7 @@ struct v4l2_requestbuffers {
>> #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
>> #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
>> #define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
>> +#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
>>
>> /**
>> * struct v4l2_plane - plane info for multi-planar buffers
>> @@ -2604,6 +2605,9 @@ struct v4l2_dbg_chip_info {
>> * @flags: additional buffer management attributes (ignored unless the
>> * queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
>> * and configured for MMAP streaming I/O).
>> + * @max_buffers: if V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
>> + * this field indicate the maximum possible number of buffers
>> + * for this queue.
>> * @reserved: future extensions
>> */
>> struct v4l2_create_buffers {
>> @@ -2613,7 +2617,8 @@ struct v4l2_create_buffers {
>> struct v4l2_format format;
>> __u32 capabilities;
>> __u32 flags;
>> - __u32 reserved[6];
>> + __u32 max_buffers;
>> + __u32 reserved[5];
>> };
>>
>> /*
>
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 13/53] media: Report the maximum possible number of buffers for the queue
@ 2023-10-02 13:46 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-10-02 13:46 UTC (permalink / raw)
To: Hans Verkuil, mchehab, tfiga, m.szyprowski, ming.qian, ezequiel,
p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
Le 02/10/2023 à 15:37, Hans Verkuil a écrit :
> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>> Use one of the struct v4l2_create_buffers reserved bytes to report
>> the maximum possible number of buffers for the queue.
>> V4l2 framework set V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS flags in queue
>> capabilities so userland can know when the field is valid.
>>
>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
>> ---
>> .../userspace-api/media/v4l/vidioc-create-bufs.rst | 8 ++++++--
>> Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1 +
>> drivers/media/common/videobuf2/videobuf2-v4l2.c | 9 +++++++--
>> drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++--
>> include/uapi/linux/videodev2.h | 7 ++++++-
>> 5 files changed, 22 insertions(+), 7 deletions(-)
>>
>> diff --git a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>> index a048a9f6b7b6..1a46549e7462 100644
>> --- a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>> +++ b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>> @@ -116,9 +116,13 @@ than the number requested.
>> - ``flags``
>> - Specifies additional buffer management attributes.
>> See :ref:`memory-flags`.
>> -
>> * - __u32
>> - - ``reserved``\ [6]
>> + - ``max_buffers``
>> + - If V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
>> + this field indicate the maximum possible number of buffers
>> + for this queue.
>> + * - __u32
>> + - ``reserved``\ [5]
>> - A place holder for future extensions. Drivers and applications
>> must set the array to zero.
>>
>> diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>> index 099fa6695167..0395187e1a5a 100644
>> --- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>> +++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>> @@ -120,6 +120,7 @@ aborting or finishing any DMA in progress, an implicit
>> .. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
>> .. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
>> .. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
>> +.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
>>
>> .. raw:: latex
>>
>> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>> index 278ea1107b01..655133f1ae2b 100644
>> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
>> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>> @@ -686,6 +686,7 @@ EXPORT_SYMBOL(vb2_querybuf);
>> static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
>> {
>> *caps = V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS;
>> + *caps |= V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS;
>> if (q->io_modes & VB2_MMAP)
>> *caps |= V4L2_BUF_CAP_SUPPORTS_MMAP;
>> if (q->io_modes & VB2_USERPTR)
>> @@ -767,9 +768,13 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
>>
>> fill_buf_caps(q, &create->capabilities);
>> validate_memory_flags(q, create->memory, &create->flags);
>> - create->index = q->num_buffers;
>> - if (create->count == 0)
>> +
>> + create->max_buffers = q->max_num_buffers;
>> +
>> + if (create->count == 0) {
>> + create->index = vb2_get_num_buffers(q);
> This breaks git bisect: this function isn't introduced until patch 21/53.
>
> Note: with the build scripts you can just run it with:
>
> ./build.sh -patches 53 ...
>
> and it will apply each patch in sequence and attempt to compile it.
It should be create->index = q->num_buffers;
The error is also in v9...
>
> Regards,
>
> Hans
>
>> return ret != -EBUSY ? ret : 0;
>> + }
>>
>> switch (f->type) {
>> case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
>> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
>> index f4d9d6279094..700db197e371 100644
>> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
>> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
>> @@ -483,9 +483,9 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
>> {
>> const struct v4l2_create_buffers *p = arg;
>>
>> - pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, ",
>> + pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, max buffers=%u",
>> p->index, p->count, prt_names(p->memory, v4l2_memory_names),
>> - p->capabilities);
>> + p->capabilities, p->max_buffers);
>> v4l_print_format(&p->format, write_only);
>> }
>>
>> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
>> index 78260e5d9985..b0dbb1be728c 100644
>> --- a/include/uapi/linux/videodev2.h
>> +++ b/include/uapi/linux/videodev2.h
>> @@ -1034,6 +1034,7 @@ struct v4l2_requestbuffers {
>> #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
>> #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
>> #define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
>> +#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
>>
>> /**
>> * struct v4l2_plane - plane info for multi-planar buffers
>> @@ -2604,6 +2605,9 @@ struct v4l2_dbg_chip_info {
>> * @flags: additional buffer management attributes (ignored unless the
>> * queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
>> * and configured for MMAP streaming I/O).
>> + * @max_buffers: if V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
>> + * this field indicate the maximum possible number of buffers
>> + * for this queue.
>> * @reserved: future extensions
>> */
>> struct v4l2_create_buffers {
>> @@ -2613,7 +2617,8 @@ struct v4l2_create_buffers {
>> struct v4l2_format format;
>> __u32 capabilities;
>> __u32 flags;
>> - __u32 reserved[6];
>> + __u32 max_buffers;
>> + __u32 reserved[5];
>> };
>>
>> /*
>
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 13/53] media: Report the maximum possible number of buffers for the queue
@ 2023-10-02 13:46 ` Benjamin Gaignard
0 siblings, 0 replies; 190+ messages in thread
From: Benjamin Gaignard @ 2023-10-02 13:46 UTC (permalink / raw)
To: Hans Verkuil, mchehab, tfiga, m.szyprowski, ming.qian, ezequiel,
p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
Le 02/10/2023 à 15:37, Hans Verkuil a écrit :
> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>> Use one of the struct v4l2_create_buffers reserved bytes to report
>> the maximum possible number of buffers for the queue.
>> V4l2 framework set V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS flags in queue
>> capabilities so userland can know when the field is valid.
>>
>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
>> ---
>> .../userspace-api/media/v4l/vidioc-create-bufs.rst | 8 ++++++--
>> Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1 +
>> drivers/media/common/videobuf2/videobuf2-v4l2.c | 9 +++++++--
>> drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++--
>> include/uapi/linux/videodev2.h | 7 ++++++-
>> 5 files changed, 22 insertions(+), 7 deletions(-)
>>
>> diff --git a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>> index a048a9f6b7b6..1a46549e7462 100644
>> --- a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>> +++ b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>> @@ -116,9 +116,13 @@ than the number requested.
>> - ``flags``
>> - Specifies additional buffer management attributes.
>> See :ref:`memory-flags`.
>> -
>> * - __u32
>> - - ``reserved``\ [6]
>> + - ``max_buffers``
>> + - If V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
>> + this field indicate the maximum possible number of buffers
>> + for this queue.
>> + * - __u32
>> + - ``reserved``\ [5]
>> - A place holder for future extensions. Drivers and applications
>> must set the array to zero.
>>
>> diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>> index 099fa6695167..0395187e1a5a 100644
>> --- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>> +++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>> @@ -120,6 +120,7 @@ aborting or finishing any DMA in progress, an implicit
>> .. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
>> .. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
>> .. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
>> +.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
>>
>> .. raw:: latex
>>
>> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>> index 278ea1107b01..655133f1ae2b 100644
>> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
>> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>> @@ -686,6 +686,7 @@ EXPORT_SYMBOL(vb2_querybuf);
>> static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
>> {
>> *caps = V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS;
>> + *caps |= V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS;
>> if (q->io_modes & VB2_MMAP)
>> *caps |= V4L2_BUF_CAP_SUPPORTS_MMAP;
>> if (q->io_modes & VB2_USERPTR)
>> @@ -767,9 +768,13 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
>>
>> fill_buf_caps(q, &create->capabilities);
>> validate_memory_flags(q, create->memory, &create->flags);
>> - create->index = q->num_buffers;
>> - if (create->count == 0)
>> +
>> + create->max_buffers = q->max_num_buffers;
>> +
>> + if (create->count == 0) {
>> + create->index = vb2_get_num_buffers(q);
> This breaks git bisect: this function isn't introduced until patch 21/53.
>
> Note: with the build scripts you can just run it with:
>
> ./build.sh -patches 53 ...
>
> and it will apply each patch in sequence and attempt to compile it.
It should be create->index = q->num_buffers;
The error is also in v9...
>
> Regards,
>
> Hans
>
>> return ret != -EBUSY ? ret : 0;
>> + }
>>
>> switch (f->type) {
>> case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
>> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
>> index f4d9d6279094..700db197e371 100644
>> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
>> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
>> @@ -483,9 +483,9 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
>> {
>> const struct v4l2_create_buffers *p = arg;
>>
>> - pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, ",
>> + pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, max buffers=%u",
>> p->index, p->count, prt_names(p->memory, v4l2_memory_names),
>> - p->capabilities);
>> + p->capabilities, p->max_buffers);
>> v4l_print_format(&p->format, write_only);
>> }
>>
>> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
>> index 78260e5d9985..b0dbb1be728c 100644
>> --- a/include/uapi/linux/videodev2.h
>> +++ b/include/uapi/linux/videodev2.h
>> @@ -1034,6 +1034,7 @@ struct v4l2_requestbuffers {
>> #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
>> #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
>> #define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
>> +#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
>>
>> /**
>> * struct v4l2_plane - plane info for multi-planar buffers
>> @@ -2604,6 +2605,9 @@ struct v4l2_dbg_chip_info {
>> * @flags: additional buffer management attributes (ignored unless the
>> * queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
>> * and configured for MMAP streaming I/O).
>> + * @max_buffers: if V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
>> + * this field indicate the maximum possible number of buffers
>> + * for this queue.
>> * @reserved: future extensions
>> */
>> struct v4l2_create_buffers {
>> @@ -2613,7 +2617,8 @@ struct v4l2_create_buffers {
>> struct v4l2_format format;
>> __u32 capabilities;
>> __u32 flags;
>> - __u32 reserved[6];
>> + __u32 max_buffers;
>> + __u32 reserved[5];
>> };
>>
>> /*
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 13/53] media: Report the maximum possible number of buffers for the queue
2023-10-02 13:46 ` Benjamin Gaignard
(?)
@ 2023-10-02 13:49 ` Hans Verkuil
-1 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-10-02 13:49 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
On 02/10/2023 15:46, Benjamin Gaignard wrote:
>
> Le 02/10/2023 à 15:37, Hans Verkuil a écrit :
>> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>>> Use one of the struct v4l2_create_buffers reserved bytes to report
>>> the maximum possible number of buffers for the queue.
>>> V4l2 framework set V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS flags in queue
>>> capabilities so userland can know when the field is valid.
>>>
>>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
>>> ---
>>> .../userspace-api/media/v4l/vidioc-create-bufs.rst | 8 ++++++--
>>> Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1 +
>>> drivers/media/common/videobuf2/videobuf2-v4l2.c | 9 +++++++--
>>> drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++--
>>> include/uapi/linux/videodev2.h | 7 ++++++-
>>> 5 files changed, 22 insertions(+), 7 deletions(-)
>>>
>>> diff --git a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>>> index a048a9f6b7b6..1a46549e7462 100644
>>> --- a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>>> +++ b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>>> @@ -116,9 +116,13 @@ than the number requested.
>>> - ``flags``
>>> - Specifies additional buffer management attributes.
>>> See :ref:`memory-flags`.
>>> -
>>> * - __u32
>>> - - ``reserved``\ [6]
>>> + - ``max_buffers``
>>> + - If V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
>>> + this field indicate the maximum possible number of buffers
>>> + for this queue.
>>> + * - __u32
>>> + - ``reserved``\ [5]
>>> - A place holder for future extensions. Drivers and applications
>>> must set the array to zero.
>>> diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>>> index 099fa6695167..0395187e1a5a 100644
>>> --- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>>> +++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>>> @@ -120,6 +120,7 @@ aborting or finishing any DMA in progress, an implicit
>>> .. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
>>> .. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
>>> .. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
>>> +.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
>>> .. raw:: latex
>>> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>> index 278ea1107b01..655133f1ae2b 100644
>>> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>> @@ -686,6 +686,7 @@ EXPORT_SYMBOL(vb2_querybuf);
>>> static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
>>> {
>>> *caps = V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS;
>>> + *caps |= V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS;
>>> if (q->io_modes & VB2_MMAP)
>>> *caps |= V4L2_BUF_CAP_SUPPORTS_MMAP;
>>> if (q->io_modes & VB2_USERPTR)
>>> @@ -767,9 +768,13 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
>>> fill_buf_caps(q, &create->capabilities);
>>> validate_memory_flags(q, create->memory, &create->flags);
>>> - create->index = q->num_buffers;
>>> - if (create->count == 0)
>>> +
>>> + create->max_buffers = q->max_num_buffers;
>>> +
>>> + if (create->count == 0) {
>>> + create->index = vb2_get_num_buffers(q);
>> This breaks git bisect: this function isn't introduced until patch 21/53.
>>
>> Note: with the build scripts you can just run it with:
>>
>> ./build.sh -patches 53 ...
>>
>> and it will apply each patch in sequence and attempt to compile it.
>
> It should be create->index = q->num_buffers;
> The error is also in v9...
Sorry, I meant to reply to the v9 patch, so yes, it is also in v9 :-)
Hans
>
>>
>> Regards,
>>
>> Hans
>>
>>> return ret != -EBUSY ? ret : 0;
>>> + }
>>> switch (f->type) {
>>> case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
>>> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
>>> index f4d9d6279094..700db197e371 100644
>>> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
>>> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
>>> @@ -483,9 +483,9 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
>>> {
>>> const struct v4l2_create_buffers *p = arg;
>>> - pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, ",
>>> + pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, max buffers=%u",
>>> p->index, p->count, prt_names(p->memory, v4l2_memory_names),
>>> - p->capabilities);
>>> + p->capabilities, p->max_buffers);
>>> v4l_print_format(&p->format, write_only);
>>> }
>>> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
>>> index 78260e5d9985..b0dbb1be728c 100644
>>> --- a/include/uapi/linux/videodev2.h
>>> +++ b/include/uapi/linux/videodev2.h
>>> @@ -1034,6 +1034,7 @@ struct v4l2_requestbuffers {
>>> #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
>>> #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
>>> #define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
>>> +#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
>>> /**
>>> * struct v4l2_plane - plane info for multi-planar buffers
>>> @@ -2604,6 +2605,9 @@ struct v4l2_dbg_chip_info {
>>> * @flags: additional buffer management attributes (ignored unless the
>>> * queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
>>> * and configured for MMAP streaming I/O).
>>> + * @max_buffers: if V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
>>> + * this field indicate the maximum possible number of buffers
>>> + * for this queue.
>>> * @reserved: future extensions
>>> */
>>> struct v4l2_create_buffers {
>>> @@ -2613,7 +2617,8 @@ struct v4l2_create_buffers {
>>> struct v4l2_format format;
>>> __u32 capabilities;
>>> __u32 flags;
>>> - __u32 reserved[6];
>>> + __u32 max_buffers;
>>> + __u32 reserved[5];
>>> };
>>> /*
>>
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 13/53] media: Report the maximum possible number of buffers for the queue
@ 2023-10-02 13:49 ` Hans Verkuil
0 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-10-02 13:49 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
On 02/10/2023 15:46, Benjamin Gaignard wrote:
>
> Le 02/10/2023 à 15:37, Hans Verkuil a écrit :
>> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>>> Use one of the struct v4l2_create_buffers reserved bytes to report
>>> the maximum possible number of buffers for the queue.
>>> V4l2 framework set V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS flags in queue
>>> capabilities so userland can know when the field is valid.
>>>
>>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
>>> ---
>>> .../userspace-api/media/v4l/vidioc-create-bufs.rst | 8 ++++++--
>>> Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1 +
>>> drivers/media/common/videobuf2/videobuf2-v4l2.c | 9 +++++++--
>>> drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++--
>>> include/uapi/linux/videodev2.h | 7 ++++++-
>>> 5 files changed, 22 insertions(+), 7 deletions(-)
>>>
>>> diff --git a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>>> index a048a9f6b7b6..1a46549e7462 100644
>>> --- a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>>> +++ b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>>> @@ -116,9 +116,13 @@ than the number requested.
>>> - ``flags``
>>> - Specifies additional buffer management attributes.
>>> See :ref:`memory-flags`.
>>> -
>>> * - __u32
>>> - - ``reserved``\ [6]
>>> + - ``max_buffers``
>>> + - If V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
>>> + this field indicate the maximum possible number of buffers
>>> + for this queue.
>>> + * - __u32
>>> + - ``reserved``\ [5]
>>> - A place holder for future extensions. Drivers and applications
>>> must set the array to zero.
>>> diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>>> index 099fa6695167..0395187e1a5a 100644
>>> --- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>>> +++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>>> @@ -120,6 +120,7 @@ aborting or finishing any DMA in progress, an implicit
>>> .. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
>>> .. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
>>> .. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
>>> +.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
>>> .. raw:: latex
>>> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>> index 278ea1107b01..655133f1ae2b 100644
>>> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>> @@ -686,6 +686,7 @@ EXPORT_SYMBOL(vb2_querybuf);
>>> static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
>>> {
>>> *caps = V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS;
>>> + *caps |= V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS;
>>> if (q->io_modes & VB2_MMAP)
>>> *caps |= V4L2_BUF_CAP_SUPPORTS_MMAP;
>>> if (q->io_modes & VB2_USERPTR)
>>> @@ -767,9 +768,13 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
>>> fill_buf_caps(q, &create->capabilities);
>>> validate_memory_flags(q, create->memory, &create->flags);
>>> - create->index = q->num_buffers;
>>> - if (create->count == 0)
>>> +
>>> + create->max_buffers = q->max_num_buffers;
>>> +
>>> + if (create->count == 0) {
>>> + create->index = vb2_get_num_buffers(q);
>> This breaks git bisect: this function isn't introduced until patch 21/53.
>>
>> Note: with the build scripts you can just run it with:
>>
>> ./build.sh -patches 53 ...
>>
>> and it will apply each patch in sequence and attempt to compile it.
>
> It should be create->index = q->num_buffers;
> The error is also in v9...
Sorry, I meant to reply to the v9 patch, so yes, it is also in v9 :-)
Hans
>
>>
>> Regards,
>>
>> Hans
>>
>>> return ret != -EBUSY ? ret : 0;
>>> + }
>>> switch (f->type) {
>>> case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
>>> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
>>> index f4d9d6279094..700db197e371 100644
>>> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
>>> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
>>> @@ -483,9 +483,9 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
>>> {
>>> const struct v4l2_create_buffers *p = arg;
>>> - pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, ",
>>> + pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, max buffers=%u",
>>> p->index, p->count, prt_names(p->memory, v4l2_memory_names),
>>> - p->capabilities);
>>> + p->capabilities, p->max_buffers);
>>> v4l_print_format(&p->format, write_only);
>>> }
>>> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
>>> index 78260e5d9985..b0dbb1be728c 100644
>>> --- a/include/uapi/linux/videodev2.h
>>> +++ b/include/uapi/linux/videodev2.h
>>> @@ -1034,6 +1034,7 @@ struct v4l2_requestbuffers {
>>> #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
>>> #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
>>> #define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
>>> +#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
>>> /**
>>> * struct v4l2_plane - plane info for multi-planar buffers
>>> @@ -2604,6 +2605,9 @@ struct v4l2_dbg_chip_info {
>>> * @flags: additional buffer management attributes (ignored unless the
>>> * queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
>>> * and configured for MMAP streaming I/O).
>>> + * @max_buffers: if V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
>>> + * this field indicate the maximum possible number of buffers
>>> + * for this queue.
>>> * @reserved: future extensions
>>> */
>>> struct v4l2_create_buffers {
>>> @@ -2613,7 +2617,8 @@ struct v4l2_create_buffers {
>>> struct v4l2_format format;
>>> __u32 capabilities;
>>> __u32 flags;
>>> - __u32 reserved[6];
>>> + __u32 max_buffers;
>>> + __u32 reserved[5];
>>> };
>>> /*
>>
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply [flat|nested] 190+ messages in thread
* Re: [PATCH v8 13/53] media: Report the maximum possible number of buffers for the queue
@ 2023-10-02 13:49 ` Hans Verkuil
0 siblings, 0 replies; 190+ messages in thread
From: Hans Verkuil @ 2023-10-02 13:49 UTC (permalink / raw)
To: Benjamin Gaignard, mchehab, tfiga, m.szyprowski, ming.qian,
ezequiel, p.zabel, gregkh, nicolas.dufresne
Cc: linux-media, linux-kernel, linux-arm-kernel, linux-mediatek,
linux-arm-msm, linux-rockchip, linux-staging, kernel
On 02/10/2023 15:46, Benjamin Gaignard wrote:
>
> Le 02/10/2023 à 15:37, Hans Verkuil a écrit :
>> On 27/09/2023 17:35, Benjamin Gaignard wrote:
>>> Use one of the struct v4l2_create_buffers reserved bytes to report
>>> the maximum possible number of buffers for the queue.
>>> V4l2 framework set V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS flags in queue
>>> capabilities so userland can know when the field is valid.
>>>
>>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
>>> ---
>>> .../userspace-api/media/v4l/vidioc-create-bufs.rst | 8 ++++++--
>>> Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst | 1 +
>>> drivers/media/common/videobuf2/videobuf2-v4l2.c | 9 +++++++--
>>> drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++--
>>> include/uapi/linux/videodev2.h | 7 ++++++-
>>> 5 files changed, 22 insertions(+), 7 deletions(-)
>>>
>>> diff --git a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>>> index a048a9f6b7b6..1a46549e7462 100644
>>> --- a/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>>> +++ b/Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst
>>> @@ -116,9 +116,13 @@ than the number requested.
>>> - ``flags``
>>> - Specifies additional buffer management attributes.
>>> See :ref:`memory-flags`.
>>> -
>>> * - __u32
>>> - - ``reserved``\ [6]
>>> + - ``max_buffers``
>>> + - If V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
>>> + this field indicate the maximum possible number of buffers
>>> + for this queue.
>>> + * - __u32
>>> + - ``reserved``\ [5]
>>> - A place holder for future extensions. Drivers and applications
>>> must set the array to zero.
>>> diff --git a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>>> index 099fa6695167..0395187e1a5a 100644
>>> --- a/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>>> +++ b/Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst
>>> @@ -120,6 +120,7 @@ aborting or finishing any DMA in progress, an implicit
>>> .. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
>>> .. _V4L2-BUF-CAP-SUPPORTS-M2M-HOLD-CAPTURE-BUF:
>>> .. _V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS:
>>> +.. _V4L2-BUF-CAP-SUPPORTS-SET-MAX-BUFS:
>>> .. raw:: latex
>>> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>> index 278ea1107b01..655133f1ae2b 100644
>>> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>> @@ -686,6 +686,7 @@ EXPORT_SYMBOL(vb2_querybuf);
>>> static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
>>> {
>>> *caps = V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS;
>>> + *caps |= V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS;
>>> if (q->io_modes & VB2_MMAP)
>>> *caps |= V4L2_BUF_CAP_SUPPORTS_MMAP;
>>> if (q->io_modes & VB2_USERPTR)
>>> @@ -767,9 +768,13 @@ int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create)
>>> fill_buf_caps(q, &create->capabilities);
>>> validate_memory_flags(q, create->memory, &create->flags);
>>> - create->index = q->num_buffers;
>>> - if (create->count == 0)
>>> +
>>> + create->max_buffers = q->max_num_buffers;
>>> +
>>> + if (create->count == 0) {
>>> + create->index = vb2_get_num_buffers(q);
>> This breaks git bisect: this function isn't introduced until patch 21/53.
>>
>> Note: with the build scripts you can just run it with:
>>
>> ./build.sh -patches 53 ...
>>
>> and it will apply each patch in sequence and attempt to compile it.
>
> It should be create->index = q->num_buffers;
> The error is also in v9...
Sorry, I meant to reply to the v9 patch, so yes, it is also in v9 :-)
Hans
>
>>
>> Regards,
>>
>> Hans
>>
>>> return ret != -EBUSY ? ret : 0;
>>> + }
>>> switch (f->type) {
>>> case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
>>> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
>>> index f4d9d6279094..700db197e371 100644
>>> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
>>> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
>>> @@ -483,9 +483,9 @@ static void v4l_print_create_buffers(const void *arg, bool write_only)
>>> {
>>> const struct v4l2_create_buffers *p = arg;
>>> - pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, ",
>>> + pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, max buffers=%u",
>>> p->index, p->count, prt_names(p->memory, v4l2_memory_names),
>>> - p->capabilities);
>>> + p->capabilities, p->max_buffers);
>>> v4l_print_format(&p->format, write_only);
>>> }
>>> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
>>> index 78260e5d9985..b0dbb1be728c 100644
>>> --- a/include/uapi/linux/videodev2.h
>>> +++ b/include/uapi/linux/videodev2.h
>>> @@ -1034,6 +1034,7 @@ struct v4l2_requestbuffers {
>>> #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
>>> #define V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF (1 << 5)
>>> #define V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS (1 << 6)
>>> +#define V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS (1 << 7)
>>> /**
>>> * struct v4l2_plane - plane info for multi-planar buffers
>>> @@ -2604,6 +2605,9 @@ struct v4l2_dbg_chip_info {
>>> * @flags: additional buffer management attributes (ignored unless the
>>> * queue has V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS capability
>>> * and configured for MMAP streaming I/O).
>>> + * @max_buffers: if V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS capability flag is set
>>> + * this field indicate the maximum possible number of buffers
>>> + * for this queue.
>>> * @reserved: future extensions
>>> */
>>> struct v4l2_create_buffers {
>>> @@ -2613,7 +2617,8 @@ struct v4l2_create_buffers {
>>> struct v4l2_format format;
>>> __u32 capabilities;
>>> __u32 flags;
>>> - __u32 reserved[6];
>>> + __u32 max_buffers;
>>> + __u32 reserved[5];
>>> };
>>> /*
>>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 190+ messages in thread
end of thread, other threads:[~2023-10-02 13:50 UTC | newest]
Thread overview: 190+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-09-27 15:35 [PATCH v8 00/53] Add DELETE_BUF ioctl Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 01/53] media: videobuf2: Rework offset 'cookie' encoding pattern Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-30 3:55 ` kernel test robot
2023-09-30 8:52 ` Hans Verkuil
2023-09-30 8:52 ` Hans Verkuil
2023-09-30 8:52 ` Hans Verkuil
2023-09-27 15:35 ` [PATCH v8 02/53] media: videobuf2: Stop spamming kernel log with all queue counter Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 03/53] media: videobuf2: Use vb2_buffer instead of index Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 04/53] media: amphion: Use vb2_get_buffer() instead of directly access to buffers array Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 05/53] media: mediatek: jpeg: " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 06/53] media: mediatek: vdec: Remove useless loop Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 07/53] media: sti: hva: Use vb2_get_buffer() instead of directly access to buffers array Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 08/53] media: visl: " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 09/53] media: atomisp: " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 10/53] media: dvb-core: " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 11/53] media: videobuf2: Access vb2_queue bufs array through helper functions Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 12/53] media: videobuf2: Be more flexible on the number of queue stored buffers Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 13/53] media: Report the maximum possible number of buffers for the queue Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-10-02 13:37 ` Hans Verkuil
2023-10-02 13:37 ` Hans Verkuil
2023-10-02 13:37 ` Hans Verkuil
2023-10-02 13:46 ` Benjamin Gaignard
2023-10-02 13:46 ` Benjamin Gaignard
2023-10-02 13:46 ` Benjamin Gaignard
2023-10-02 13:49 ` Hans Verkuil
2023-10-02 13:49 ` Hans Verkuil
2023-10-02 13:49 ` Hans Verkuil
2023-09-27 15:35 ` [PATCH v8 14/53] media: test-drivers: vivid: Increase max supported buffers for capture queues Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 15/53] media: test-drivers: vicodec: Increase max supported capture queue buffers Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 16/53] media: verisilicon: Refactor postprocessor to store more buffers Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 17/53] media: verisilicon: Store chroma and motion vectors offset Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 18/53] media: verisilicon: g2: Use common helpers to compute chroma and mv offsets Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 19/53] media: verisilicon: vp9: Allow to change resolution while streaming Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 20/53] media: Remove duplicated index vs q->num_buffers check Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 21/53] media: core: Add helper to get queue number of buffers Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 22/53] media: dvb-core: Do not initialize twice queue num_buffer field Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 23/53] media: dvb-frontends: rtl2832_srd: Use queue min_buffers_needed field Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 24/53] media: video-i2c: Set min_buffers_needed to 2 Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 25/53] media: pci: cx18: Set correct value to min_buffers_needed field Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 26/53] media: pci: dt3155: Remove useless check Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 27/53] media: pci: netup_unidvb: Remove useless number of buffers check Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 28/53] media: pci: tw68: Stop direct calls to queue num_buffers field Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 29/53] media: pci: tw686x: Set min_buffers_needed to 3 Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 30/53] media: amphion: Stop direct calls to queue num_buffers field Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 31/53] media: coda: " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 32/53] media: mediatek: vcodec: " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 33/53] media: nxp: " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 34/53] media: renesas: Set min_buffers_needed to 16 Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 35/53] media: ti: Use queue min_buffers_needed field to set the min number of buffers Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 36/53] media: verisilicon: Stop direct calls to queue num_buffers field Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 37/53] media: test-drivers: " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 38/53] media: usb: airspy: Set min_buffers_needed to 8 Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 39/53] media: usb: cx231xx: Set min_buffers_needed to CX231XX_MIN_BUF Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 40/53] media: usb: hackrf: Set min_buffers_needed to 8 Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 41/53] media: usb: usbtv: Set min_buffers_needed to 2 Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 42/53] media: atomisp: Stop direct calls to queue num_buffers field Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 43/53] media: imx: " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 44/53] media: meson: vdec: " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 45/53] touchscreen: sur40: " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 46/53] sample: v4l: " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 47/53] media: cedrus: " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 48/53] media: core: Rework how create_buf index returned value is computed Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 49/53] media: core: Add bitmap manage bufs array entries Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 50/53] media: core: Free range of buffers Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-30 5:09 ` kernel test robot
2023-09-30 5:09 ` kernel test robot
2023-09-30 5:09 ` kernel test robot
2023-09-27 15:35 ` [PATCH v8 51/53] media: v4l2: Add DELETE_BUFS ioctl Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 52/53] media: v4l2: Add mem2mem helpers for " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` [PATCH v8 53/53] media: test-drivers: Use helper " Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-27 15:35 ` Benjamin Gaignard
2023-09-28 13:04 ` [PATCH v8 00/53] Add DELETE_BUF ioctl Hans Verkuil
2023-09-28 13:04 ` Hans Verkuil
2023-09-28 13:04 ` Hans Verkuil
2023-09-28 13:16 ` Benjamin Gaignard
2023-09-28 13:16 ` Benjamin Gaignard
2023-09-28 13:16 ` Benjamin Gaignard
2023-09-29 11:44 ` Benjamin Gaignard
2023-09-29 11:44 ` Benjamin Gaignard
2023-09-29 11:44 ` Benjamin Gaignard
2023-09-29 13:17 ` Hans Verkuil
2023-09-29 13:17 ` Hans Verkuil
2023-09-29 13:17 ` Hans Verkuil
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