* [PATCH v3 1/3] drm/etnaviv: submit support for in-fences
@ 2017-03-29 14:27 Lucas Stach
2017-03-29 14:27 ` [PATCH v3 2/3] drm/etnaviv: return GPU fence through the submit structure Lucas Stach
2017-03-29 14:27 ` [PATCH v3 3/3] drm/etnaviv: submit support for out-fences Lucas Stach
0 siblings, 2 replies; 3+ messages in thread
From: Lucas Stach @ 2017-03-29 14:27 UTC (permalink / raw)
To: dri-devel; +Cc: Gustavo Padovan, etnaviv, kernel, Russell King
From: Philipp Zabel <p.zabel@pengutronix.de>
Loosely based on commit f0a42bb5423a ("drm/msm: submit support for
in-fences"). Unfortunately, struct drm_etnaviv_gem_submit doesn't have
a flags field yet, so we have to extend the structure and trust that
drm_ioctl will clear the flags for us if an older userspace only submits
part of the struct.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Reviewed-by: Sumit Semwal <sumit.semwal@linaro.org>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
drivers/gpu/drm/etnaviv/Kconfig | 1 +
drivers/gpu/drm/etnaviv/etnaviv_gem.h | 1 +
drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 34 +++++++++++++++++++++++++++-
drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 5 +++-
drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 2 +-
include/uapi/drm/etnaviv_drm.h | 6 +++++
6 files changed, 46 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/etnaviv/Kconfig b/drivers/gpu/drm/etnaviv/Kconfig
index cc1731c5289c..71cee4e9fefb 100644
--- a/drivers/gpu/drm/etnaviv/Kconfig
+++ b/drivers/gpu/drm/etnaviv/Kconfig
@@ -5,6 +5,7 @@ config DRM_ETNAVIV
depends on ARCH_MXC || ARCH_DOVE || (ARM && COMPILE_TEST)
depends on MMU
select SHMEM
+ select SYNC_FILE
select TMPFS
select IOMMU_API
select IOMMU_SUPPORT
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.h b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
index e63ff116a3b3..120410d67eb5 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
@@ -107,6 +107,7 @@ struct etnaviv_gem_submit {
u32 fence;
unsigned int nr_bos;
struct etnaviv_gem_submit_bo bos[0];
+ u32 flags;
};
int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index 726090d7a6ac..fb8d5befbf4f 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -14,7 +14,9 @@
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <linux/dma-fence-array.h>
#include <linux/reservation.h>
+#include <linux/sync_file.h>
#include "etnaviv_cmdbuf.h"
#include "etnaviv_drv.h"
#include "etnaviv_gpu.h"
@@ -169,8 +171,10 @@ static int submit_fence_sync(const struct etnaviv_gem_submit *submit)
for (i = 0; i < submit->nr_bos; i++) {
struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
bool write = submit->bos[i].flags & ETNA_SUBMIT_BO_WRITE;
+ bool explicit = !(submit->flags & ETNA_SUBMIT_NO_IMPLICIT);
- ret = etnaviv_gpu_fence_sync_obj(etnaviv_obj, context, write);
+ ret = etnaviv_gpu_fence_sync_obj(etnaviv_obj, context, write,
+ explicit);
if (ret)
break;
}
@@ -303,6 +307,7 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
struct etnaviv_gem_submit *submit;
struct etnaviv_cmdbuf *cmdbuf;
struct etnaviv_gpu *gpu;
+ struct dma_fence *in_fence = NULL;
void *stream;
int ret;
@@ -326,6 +331,11 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
return -EINVAL;
}
+ if (args->flags & ~ETNA_SUBMIT_FLAGS) {
+ DRM_ERROR("invalid flags: 0x%x\n", args->flags);
+ return -EINVAL;
+ }
+
/*
* Copy the command submission and bo array to kernel space in
* one go, and do this outside of any locks.
@@ -371,6 +381,8 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
goto err_submit_cmds;
}
+ submit->flags = args->flags;
+
ret = submit_lookup_objects(submit, file, bos, args->nr_bos);
if (ret)
goto err_submit_objects;
@@ -385,6 +397,24 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
goto err_submit_objects;
}
+ if (args->flags & ETNA_SUBMIT_FENCE_FD_IN) {
+ in_fence = sync_file_get_fence(args->fence_fd);
+ if (!in_fence) {
+ ret = -EINVAL;
+ goto err_submit_objects;
+ }
+
+ /*
+ * Wait if the fence is from a foreign context, or if the fence
+ * array contains any fence from a foreign context.
+ */
+ if (!dma_fence_match_context(in_fence, gpu->fence_context)) {
+ ret = dma_fence_wait(in_fence, true);
+ if (ret)
+ goto err_submit_objects;
+ }
+ }
+
ret = submit_fence_sync(submit);
if (ret)
goto err_submit_objects;
@@ -419,6 +449,8 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
flush_workqueue(priv->wq);
err_submit_objects:
+ if (in_fence)
+ dma_fence_put(in_fence);
submit_cleanup(submit);
err_submit_cmds:
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index 545ef08323f4..ed3fdeb8b5e6 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -1077,7 +1077,7 @@ static struct dma_fence *etnaviv_gpu_fence_alloc(struct etnaviv_gpu *gpu)
}
int etnaviv_gpu_fence_sync_obj(struct etnaviv_gem_object *etnaviv_obj,
- unsigned int context, bool exclusive)
+ unsigned int context, bool exclusive, bool explicit)
{
struct reservation_object *robj = etnaviv_obj->resv;
struct reservation_object_list *fobj;
@@ -1090,6 +1090,9 @@ int etnaviv_gpu_fence_sync_obj(struct etnaviv_gem_object *etnaviv_obj,
return ret;
}
+ if (explicit)
+ return 0;
+
/*
* If we have any shared fences, then the exclusive fence
* should be ignored as it will already have been signalled.
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
index 6a1e68eec24c..9227a9740447 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
@@ -183,7 +183,7 @@ int etnaviv_gpu_debugfs(struct etnaviv_gpu *gpu, struct seq_file *m);
#endif
int etnaviv_gpu_fence_sync_obj(struct etnaviv_gem_object *etnaviv_obj,
- unsigned int context, bool exclusive);
+ unsigned int context, bool exclusive, bool implicit);
void etnaviv_gpu_retire(struct etnaviv_gpu *gpu);
int etnaviv_gpu_wait_fence_interruptible(struct etnaviv_gpu *gpu,
diff --git a/include/uapi/drm/etnaviv_drm.h b/include/uapi/drm/etnaviv_drm.h
index 2584c1cca42f..e9c388a1d8eb 100644
--- a/include/uapi/drm/etnaviv_drm.h
+++ b/include/uapi/drm/etnaviv_drm.h
@@ -154,6 +154,10 @@ struct drm_etnaviv_gem_submit_bo {
* one or more cmdstream buffers. This allows for conditional execution
* (context-restore), and IB buffers needed for per tile/bin draw cmds.
*/
+#define ETNA_SUBMIT_NO_IMPLICIT 0x0001
+#define ETNA_SUBMIT_FENCE_FD_IN 0x0002
+#define ETNA_SUBMIT_FLAGS (ETNA_SUBMIT_NO_IMPLICIT | \
+ ETNA_SUBMIT_FENCE_FD_IN)
#define ETNA_PIPE_3D 0x00
#define ETNA_PIPE_2D 0x01
#define ETNA_PIPE_VG 0x02
@@ -167,6 +171,8 @@ struct drm_etnaviv_gem_submit {
__u64 bos; /* in, ptr to array of submit_bo's */
__u64 relocs; /* in, ptr to array of submit_reloc's */
__u64 stream; /* in, ptr to cmdstream */
+ __u32 flags; /* in, mask of ETNA_SUBMIT_x */
+ __s32 fence_fd; /* in, fence fd (see ETNA_SUBMIT_FENCE_FD_IN) */
};
/* The normal way to synchronize with the GPU is just to CPU_PREP on
--
2.11.0
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH v3 2/3] drm/etnaviv: return GPU fence through the submit structure
2017-03-29 14:27 [PATCH v3 1/3] drm/etnaviv: submit support for in-fences Lucas Stach
@ 2017-03-29 14:27 ` Lucas Stach
2017-03-29 14:27 ` [PATCH v3 3/3] drm/etnaviv: submit support for out-fences Lucas Stach
1 sibling, 0 replies; 3+ messages in thread
From: Lucas Stach @ 2017-03-29 14:27 UTC (permalink / raw)
To: dri-devel; +Cc: Gustavo Padovan, etnaviv, kernel, Russell King
The next patch will need the complete dma_fence, instead of just the seqno,
to create the sync_file in etnaviv_ioctl_gem_submit, in case an
out_fence_fd is requested.
The submit needs to hold a reference to the dma_fence, to avoid raceing
with the GPU completing the fence.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
---
New patch in v3.
---
drivers/gpu/drm/etnaviv/etnaviv_gem.h | 3 ++-
drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 3 ++-
drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 4 ++--
3 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.h b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
index 120410d67eb5..c4a091e87426 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
@@ -20,6 +20,7 @@
#include <linux/reservation.h>
#include "etnaviv_drv.h"
+struct dma_fence;
struct etnaviv_gem_ops;
struct etnaviv_gem_object;
@@ -104,7 +105,7 @@ struct etnaviv_gem_submit {
struct drm_device *dev;
struct etnaviv_gpu *gpu;
struct ww_acquire_ctx ticket;
- u32 fence;
+ struct dma_fence *fence;
unsigned int nr_bos;
struct etnaviv_gem_submit_bo bos[0];
u32 flags;
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index fb8d5befbf4f..1b6f9b843815 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -294,6 +294,7 @@ static void submit_cleanup(struct etnaviv_gem_submit *submit)
}
ww_acquire_fini(&submit->ticket);
+ dma_fence_put(submit->fence);
kfree(submit);
}
@@ -435,7 +436,7 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
if (ret == 0)
cmdbuf = NULL;
- args->fence = submit->fence;
+ args->fence = submit->fence->seqno;
out:
submit_unpin_objects(submit);
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index ed3fdeb8b5e6..4f587058a3aa 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -1337,8 +1337,8 @@ int etnaviv_gpu_submit(struct etnaviv_gpu *gpu,
}
gpu->event[event].fence = fence;
- submit->fence = fence->seqno;
- gpu->active_fence = submit->fence;
+ submit->fence = dma_fence_get(fence);
+ gpu->active_fence = submit->fence->seqno;
if (gpu->lastctx != cmdbuf->ctx) {
gpu->mmu->need_flush = true;
--
2.11.0
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH v3 3/3] drm/etnaviv: submit support for out-fences
2017-03-29 14:27 [PATCH v3 1/3] drm/etnaviv: submit support for in-fences Lucas Stach
2017-03-29 14:27 ` [PATCH v3 2/3] drm/etnaviv: return GPU fence through the submit structure Lucas Stach
@ 2017-03-29 14:27 ` Lucas Stach
1 sibling, 0 replies; 3+ messages in thread
From: Lucas Stach @ 2017-03-29 14:27 UTC (permalink / raw)
To: dri-devel; +Cc: Gustavo Padovan, etnaviv, kernel, Russell King
From: Philipp Zabel <p.zabel@pengutronix.de>
Based on commit 4cd0945901a6 ("drm/msm: submit support for out-fences").
We increment the minor driver version so userspace can detect explicit
fence support.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
v3: Changed to work with fence returned from GPU submit.
---
drivers/gpu/drm/etnaviv/etnaviv_drv.c | 2 +-
drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 28 ++++++++++++++++++++++++++++
include/uapi/drm/etnaviv_drm.h | 6 ++++--
3 files changed, 33 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
index 289a9f8c6671..5255278dde56 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
@@ -512,7 +512,7 @@ static struct drm_driver etnaviv_drm_driver = {
.desc = "etnaviv DRM",
.date = "20151214",
.major = 1,
- .minor = 0,
+ .minor = 1,
};
/*
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index 1b6f9b843815..e1909429837e 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -309,6 +309,8 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
struct etnaviv_cmdbuf *cmdbuf;
struct etnaviv_gpu *gpu;
struct dma_fence *in_fence = NULL;
+ struct sync_file *sync_file = NULL;
+ int out_fence_fd = -1;
void *stream;
int ret;
@@ -376,6 +378,14 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
goto err_submit_cmds;
}
+ if (args->flags & ETNA_SUBMIT_FENCE_FD_OUT) {
+ out_fence_fd = get_unused_fd_flags(O_CLOEXEC);
+ if (out_fence_fd < 0) {
+ ret = out_fence_fd;
+ goto err_submit_cmds;
+ }
+ }
+
submit = submit_create(dev, gpu, args->nr_bos);
if (!submit) {
ret = -ENOMEM;
@@ -436,6 +446,22 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
if (ret == 0)
cmdbuf = NULL;
+ if (args->flags & ETNA_SUBMIT_FENCE_FD_OUT) {
+ /*
+ * This can be improved: ideally we want to allocate the sync
+ * file before kicking off the GPU job and just attach the
+ * fence to the sync file here, eliminating the ENOMEM
+ * possibility at this stage.
+ */
+ sync_file = sync_file_create(submit->fence);
+ if (!sync_file) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ fd_install(out_fence_fd, sync_file->file);
+ }
+
+ args->fence_fd = out_fence_fd;
args->fence = submit->fence->seqno;
out:
@@ -455,6 +481,8 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
submit_cleanup(submit);
err_submit_cmds:
+ if (ret && (out_fence_fd >= 0))
+ put_unused_fd(out_fence_fd);
/* if we still own the cmdbuf */
if (cmdbuf)
etnaviv_cmdbuf_free(cmdbuf);
diff --git a/include/uapi/drm/etnaviv_drm.h b/include/uapi/drm/etnaviv_drm.h
index e9c388a1d8eb..76f6f78a352b 100644
--- a/include/uapi/drm/etnaviv_drm.h
+++ b/include/uapi/drm/etnaviv_drm.h
@@ -156,8 +156,10 @@ struct drm_etnaviv_gem_submit_bo {
*/
#define ETNA_SUBMIT_NO_IMPLICIT 0x0001
#define ETNA_SUBMIT_FENCE_FD_IN 0x0002
+#define ETNA_SUBMIT_FENCE_FD_OUT 0x0004
#define ETNA_SUBMIT_FLAGS (ETNA_SUBMIT_NO_IMPLICIT | \
- ETNA_SUBMIT_FENCE_FD_IN)
+ ETNA_SUBMIT_FENCE_FD_IN | \
+ ETNA_SUBMIT_FENCE_FD_OUT)
#define ETNA_PIPE_3D 0x00
#define ETNA_PIPE_2D 0x01
#define ETNA_PIPE_VG 0x02
@@ -172,7 +174,7 @@ struct drm_etnaviv_gem_submit {
__u64 relocs; /* in, ptr to array of submit_reloc's */
__u64 stream; /* in, ptr to cmdstream */
__u32 flags; /* in, mask of ETNA_SUBMIT_x */
- __s32 fence_fd; /* in, fence fd (see ETNA_SUBMIT_FENCE_FD_IN) */
+ __s32 fence_fd; /* in/out, fence fd (see ETNA_SUBMIT_FENCE_FD_x) */
};
/* The normal way to synchronize with the GPU is just to CPU_PREP on
--
2.11.0
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2017-03-29 14:27 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-03-29 14:27 [PATCH v3 1/3] drm/etnaviv: submit support for in-fences Lucas Stach
2017-03-29 14:27 ` [PATCH v3 2/3] drm/etnaviv: return GPU fence through the submit structure Lucas Stach
2017-03-29 14:27 ` [PATCH v3 3/3] drm/etnaviv: submit support for out-fences Lucas Stach
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.