diff options
| author |   Sergey Senozhatsky <senozhatsky@chromium.org> | 2020-05-14 18:01:42 +0200 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-06-23 13:25:11 +0200 |
| commit | f5f5fa73fbfb9f346f1b5f37ebf343bae6ef6361 (patch) | |
| tree | 6dac7c8404b8b378374cd960af73577e09f0f437 /include | |
| parent | media: videobuf2: add cache management members (diff) | |
media: videobuf2: handle V4L2 buffer cache flags
Set video buffer cache management flags corresponding to V4L2 cache
flags.
Both ->prepare() and ->finish() cache management hints should be
passed during this stage (buffer preparation), because there is
no other way for user-space to tell V4L2 to avoid ->finish() cache
flush.
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/media/videobuf2-core.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index 7f39d9fffc8c..ccc5c498d3e3 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -636,6 +636,17 @@ struct vb2_queue { }; /** + * vb2_queue_allows_cache_hints() - Return true if the queue allows cache + * and memory consistency hints. + * + * @q: pointer to &struct vb2_queue with videobuf2 queue + */ +static inline bool vb2_queue_allows_cache_hints(struct vb2_queue *q) +{ + return q->allow_cache_hints && q->memory == VB2_MEMORY_MMAP; +} + +/** * vb2_plane_vaddr() - Return a kernel virtual address of a given plane. * @vb: pointer to &struct vb2_buffer to which the plane in * question belongs to. |