From: Daniel Vetter <daniel.vetter@ffwll.ch>
To: DRI Development <dri-devel@lists.freedesktop.org>,
LKML <linux-kernel@vger.kernel.org>
Cc: kvm@vger.kernel.org, linux-mm@kvack.org,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-media@vger.kernel.org,
"Daniel Vetter" <daniel.vetter@ffwll.ch>,
"John Hubbard" <jhubbard@nvidia.com>,
"Hans Verkuil" <hverkuil-cisco@xs4all.nl>,
"Mauro Carvalho Chehab" <mchehab+huawei@kernel.org>,
"Tomasz Figa" <tfiga@chromium.org>,
"Daniel Vetter" <daniel.vetter@intel.com>,
"Jason Gunthorpe" <jgg@ziepe.ca>,
"Pawel Osciak" <pawel@osciak.com>,
"Marek Szyprowski" <m.szyprowski@samsung.com>,
"Kyungmin Park" <kyungmin.park@samsung.com>,
"Mauro Carvalho Chehab" <mchehab@kernel.org>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Jérôme Glisse" <jglisse@redhat.com>, "Jan Kara" <jack@suse.cz>,
"Dan Williams" <dan.j.williams@intel.com>
Subject: [PATCH v7 06/17] media: videobuf2: Move frame_vector into media subsystem
Date: Fri, 27 Nov 2020 17:41:20 +0100 [thread overview]
Message-ID: <20201127164131.2244124-7-daniel.vetter@ffwll.ch> (raw)
In-Reply-To: <20201127164131.2244124-1-daniel.vetter@ffwll.ch>
It's the only user. This also garbage collects the CONFIG_FRAME_VECTOR
symbol from all over the tree (well just one place, somehow omap media
driver still had this in its Kconfig, despite not using it).
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Pawel Osciak <pawel@osciak.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Tomasz Figa <tfiga@chromium.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: linux-mm@kvack.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
--
v3:
- Create a new frame_vector.h header for this (Mauro)
v5:
- Rebase over changes in frame-vector.c from Tomasz review.
---
drivers/media/common/videobuf2/Kconfig | 1 -
drivers/media/common/videobuf2/Makefile | 1 +
.../media/common/videobuf2}/frame_vector.c | 2 +
drivers/media/platform/omap/Kconfig | 1 -
include/linux/mm.h | 42 -----------------
include/media/frame_vector.h | 47 +++++++++++++++++++
include/media/videobuf2-core.h | 1 +
mm/Kconfig | 3 --
mm/Makefile | 1 -
9 files changed, 51 insertions(+), 48 deletions(-)
rename {mm => drivers/media/common/videobuf2}/frame_vector.c (99%)
create mode 100644 include/media/frame_vector.h
diff --git a/drivers/media/common/videobuf2/Kconfig b/drivers/media/common/videobuf2/Kconfig
index edbc99ebba87..d2223a12c95f 100644
--- a/drivers/media/common/videobuf2/Kconfig
+++ b/drivers/media/common/videobuf2/Kconfig
@@ -9,7 +9,6 @@ config VIDEOBUF2_V4L2
config VIDEOBUF2_MEMOPS
tristate
- select FRAME_VECTOR
config VIDEOBUF2_DMA_CONTIG
tristate
diff --git a/drivers/media/common/videobuf2/Makefile b/drivers/media/common/videobuf2/Makefile
index 77bebe8b202f..54306f8d096c 100644
--- a/drivers/media/common/videobuf2/Makefile
+++ b/drivers/media/common/videobuf2/Makefile
@@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
videobuf2-common-objs := videobuf2-core.o
+videobuf2-common-objs += frame_vector.o
ifeq ($(CONFIG_TRACEPOINTS),y)
videobuf2-common-objs += vb2-trace.o
diff --git a/mm/frame_vector.c b/drivers/media/common/videobuf2/frame_vector.c
similarity index 99%
rename from mm/frame_vector.c
rename to drivers/media/common/videobuf2/frame_vector.c
index f8c34b895c76..a0e65481a201 100644
--- a/mm/frame_vector.c
+++ b/drivers/media/common/videobuf2/frame_vector.c
@@ -8,6 +8,8 @@
#include <linux/pagemap.h>
#include <linux/sched.h>
+#include <media/frame_vector.h>
+
/**
* get_vaddr_frames() - map virtual addresses to pfns
* @start: starting user address
diff --git a/drivers/media/platform/omap/Kconfig b/drivers/media/platform/omap/Kconfig
index f73b5893220d..de16de46c0f4 100644
--- a/drivers/media/platform/omap/Kconfig
+++ b/drivers/media/platform/omap/Kconfig
@@ -12,6 +12,5 @@ config VIDEO_OMAP2_VOUT
depends on VIDEO_V4L2
select VIDEOBUF2_DMA_CONTIG
select OMAP2_VRFB if ARCH_OMAP2 || ARCH_OMAP3
- select FRAME_VECTOR
help
V4L2 Display driver support for OMAP2/3 based boards.
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 29a1941cd255..c4cc8ea1402c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1751,48 +1751,6 @@ int account_locked_vm(struct mm_struct *mm, unsigned long pages, bool inc);
int __account_locked_vm(struct mm_struct *mm, unsigned long pages, bool inc,
struct task_struct *task, bool bypass_rlim);
-/* Container for pinned pfns / pages */
-struct frame_vector {
- unsigned int nr_allocated; /* Number of frames we have space for */
- unsigned int nr_frames; /* Number of frames stored in ptrs array */
- bool got_ref; /* Did we pin pages by getting page ref? */
- bool is_pfns; /* Does array contain pages or pfns? */
- void *ptrs[]; /* Array of pinned pfns / pages. Use
- * pfns_vector_pages() or pfns_vector_pfns()
- * for access */
-};
-
-struct frame_vector *frame_vector_create(unsigned int nr_frames);
-void frame_vector_destroy(struct frame_vector *vec);
-int get_vaddr_frames(unsigned long start, unsigned int nr_pfns,
- struct frame_vector *vec);
-void put_vaddr_frames(struct frame_vector *vec);
-int frame_vector_to_pages(struct frame_vector *vec);
-void frame_vector_to_pfns(struct frame_vector *vec);
-
-static inline unsigned int frame_vector_count(struct frame_vector *vec)
-{
- return vec->nr_frames;
-}
-
-static inline struct page **frame_vector_pages(struct frame_vector *vec)
-{
- if (vec->is_pfns) {
- int err = frame_vector_to_pages(vec);
-
- if (err)
- return ERR_PTR(err);
- }
- return (struct page **)(vec->ptrs);
-}
-
-static inline unsigned long *frame_vector_pfns(struct frame_vector *vec)
-{
- if (!vec->is_pfns)
- frame_vector_to_pfns(vec);
- return (unsigned long *)(vec->ptrs);
-}
-
struct kvec;
int get_kernel_pages(const struct kvec *iov, int nr_pages, int write,
struct page **pages);
diff --git a/include/media/frame_vector.h b/include/media/frame_vector.h
new file mode 100644
index 000000000000..bfed1710dc24
--- /dev/null
+++ b/include/media/frame_vector.h
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef _MEDIA_FRAME_VECTOR_H
+#define _MEDIA_FRAME_VECTOR_H
+
+/* Container for pinned pfns / pages in frame_vector.c */
+struct frame_vector {
+ unsigned int nr_allocated; /* Number of frames we have space for */
+ unsigned int nr_frames; /* Number of frames stored in ptrs array */
+ bool got_ref; /* Did we pin pages by getting page ref? */
+ bool is_pfns; /* Does array contain pages or pfns? */
+ void *ptrs[]; /* Array of pinned pfns / pages. Use
+ * pfns_vector_pages() or pfns_vector_pfns()
+ * for access */
+};
+
+struct frame_vector *frame_vector_create(unsigned int nr_frames);
+void frame_vector_destroy(struct frame_vector *vec);
+int get_vaddr_frames(unsigned long start, unsigned int nr_pfns,
+ struct frame_vector *vec);
+void put_vaddr_frames(struct frame_vector *vec);
+int frame_vector_to_pages(struct frame_vector *vec);
+void frame_vector_to_pfns(struct frame_vector *vec);
+
+static inline unsigned int frame_vector_count(struct frame_vector *vec)
+{
+ return vec->nr_frames;
+}
+
+static inline struct page **frame_vector_pages(struct frame_vector *vec)
+{
+ if (vec->is_pfns) {
+ int err = frame_vector_to_pages(vec);
+
+ if (err)
+ return ERR_PTR(err);
+ }
+ return (struct page **)(vec->ptrs);
+}
+
+static inline unsigned long *frame_vector_pfns(struct frame_vector *vec)
+{
+ if (!vec->is_pfns)
+ frame_vector_to_pfns(vec);
+ return (unsigned long *)(vec->ptrs);
+}
+
+#endif /* _MEDIA_FRAME_VECTOR_H */
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index bbb3f26fbde9..d045e3a5a1d8 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -18,6 +18,7 @@
#include <linux/dma-buf.h>
#include <linux/bitops.h>
#include <media/media-request.h>
+#include <media/frame_vector.h>
#define VB2_MAX_FRAME (32)
#define VB2_MAX_PLANES (8)
diff --git a/mm/Kconfig b/mm/Kconfig
index d42423f884a7..0dcff24cba53 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -819,9 +819,6 @@ config DEVICE_PRIVATE
config VMAP_PFN
bool
-config FRAME_VECTOR
- bool
-
config ARCH_USES_HIGH_VMA_FLAGS
bool
config ARCH_HAS_PKEYS
diff --git a/mm/Makefile b/mm/Makefile
index d73aed0fc99c..db41fff05038 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -110,7 +110,6 @@ obj-$(CONFIG_PAGE_EXTENSION) += page_ext.o
obj-$(CONFIG_CMA_DEBUGFS) += cma_debug.o
obj-$(CONFIG_USERFAULTFD) += userfaultfd.o
obj-$(CONFIG_IDLE_PAGE_TRACKING) += page_idle.o
-obj-$(CONFIG_FRAME_VECTOR) += frame_vector.o
obj-$(CONFIG_DEBUG_PAGE_REF) += debug_page_ref.o
obj-$(CONFIG_HARDENED_USERCOPY) += usercopy.o
obj-$(CONFIG_PERCPU_STATS) += percpu-stats.o
--
2.29.2
next prev parent reply other threads:[~2020-11-27 16:42 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-27 16:41 [PATCH v7 00/17] follow_pfn and other iomap races Daniel Vetter
2020-11-27 16:41 ` [PATCH v7 01/17] drm/exynos: Stop using frame_vector helpers Daniel Vetter
2020-11-27 16:41 ` [PATCH v7 02/17] drm/exynos: Use FOLL_LONGTERM for g2d cmdlists Daniel Vetter
2020-11-27 16:41 ` [PATCH v7 03/17] misc/habana: Stop using frame_vector helpers Daniel Vetter
2020-11-27 16:41 ` [PATCH v7 04/17] misc/habana: Use FOLL_LONGTERM for userptr Daniel Vetter
2020-12-22 16:07 ` Oded Gabbay
2020-11-27 16:41 ` [PATCH v7 05/17] mm/frame-vector: Use FOLL_LONGTERM Daniel Vetter
2020-11-27 16:41 ` Daniel Vetter [this message]
2020-11-27 16:41 ` [PATCH v7 07/17] mm: Close race in generic_access_phys Daniel Vetter
2020-11-27 16:41 ` [PATCH v7 08/17] PCI: Obey iomem restrictions for procfs mmap Daniel Vetter
2020-11-27 16:41 ` [PATCH v7 09/17] /dev/mem: Only set filp->f_mapping Daniel Vetter
2020-11-27 16:41 ` [PATCH v7 10/17] resource: Move devmem revoke code to resource framework Daniel Vetter
2020-11-27 16:41 ` [PATCH v7 11/17] sysfs: Support zapping of binary attr mmaps Daniel Vetter
2020-11-27 16:41 ` [PATCH v7 12/17] PCI: Revoke mappings like devmem Daniel Vetter
2021-01-19 8:17 ` Daniel Vetter
2021-01-19 14:32 ` Greg Kroah-Hartman
2021-01-19 14:34 ` Daniel Vetter
2021-01-19 15:20 ` Greg Kroah-Hartman
2021-01-19 16:03 ` Daniel Vetter
2021-02-03 16:14 ` Daniel Vetter
2021-02-04 10:23 ` Daniel Vetter
2020-11-27 16:41 ` [PATCH v7 13/17] mm: Add unsafe_follow_pfn Daniel Vetter
2020-11-27 16:41 ` [PATCH v7 14/17] media/videobuf1|2: Mark follow_pfn usage as unsafe Daniel Vetter
2021-01-19 12:24 ` Hans Verkuil
2020-11-27 16:41 ` [PATCH v7 15/17] vfio/type1: Mark follow_pfn " Daniel Vetter
2020-11-27 16:41 ` [PATCH v7 16/17] kvm: pass kvm argument to follow_pfn callsites Daniel Vetter
2020-11-27 16:41 ` [PATCH v7 17/17] mm: add mmu_notifier argument to follow_pfn Daniel Vetter
2020-11-27 19:10 ` kernel test robot
2020-11-30 14:28 ` Daniel Vetter
2020-11-30 18:03 ` Nick Desaulniers
2021-01-12 13:24 ` [PATCH v7 00/17] follow_pfn and other iomap races Daniel Vetter
2021-01-12 13:28 ` Daniel Vetter
2021-01-12 20:57 ` Stephen Rothwell
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20201127164131.2244124-7-daniel.vetter@ffwll.ch \
--to=daniel.vetter@ffwll.ch \
--cc=akpm@linux-foundation.org \
--cc=dan.j.williams@intel.com \
--cc=daniel.vetter@intel.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=hverkuil-cisco@xs4all.nl \
--cc=jack@suse.cz \
--cc=jgg@ziepe.ca \
--cc=jglisse@redhat.com \
--cc=jhubbard@nvidia.com \
--cc=kvm@vger.kernel.org \
--cc=kyungmin.park@samsung.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-samsung-soc@vger.kernel.org \
--cc=m.szyprowski@samsung.com \
--cc=mchehab+huawei@kernel.org \
--cc=mchehab@kernel.org \
--cc=pawel@osciak.com \
--cc=tfiga@chromium.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).