Commit dcf3bfe7 authored by Sergey Senozhatsky's avatar Sergey Senozhatsky Committed by Mauro Carvalho Chehab

media: videobuf2: do not sync caches when we are allowed not to

Skip ->prepare() or/and ->finish() cache synchronisation if
user-space requested us to do so (or when queue dma direction
permits us to skip cache syncs).
Signed-off-by: default avatarSergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent 38a417e8
...@@ -304,8 +304,11 @@ static void __vb2_buf_mem_prepare(struct vb2_buffer *vb) ...@@ -304,8 +304,11 @@ static void __vb2_buf_mem_prepare(struct vb2_buffer *vb)
{ {
unsigned int plane; unsigned int plane;
if (vb->need_cache_sync_on_prepare) {
for (plane = 0; plane < vb->num_planes; ++plane) for (plane = 0; plane < vb->num_planes; ++plane)
call_void_memop(vb, prepare, vb->planes[plane].mem_priv); call_void_memop(vb, prepare,
vb->planes[plane].mem_priv);
}
vb->synced = 1; vb->synced = 1;
} }
...@@ -317,8 +320,11 @@ static void __vb2_buf_mem_finish(struct vb2_buffer *vb) ...@@ -317,8 +320,11 @@ static void __vb2_buf_mem_finish(struct vb2_buffer *vb)
{ {
unsigned int plane; unsigned int plane;
if (vb->need_cache_sync_on_finish) {
for (plane = 0; plane < vb->num_planes; ++plane) for (plane = 0; plane < vb->num_planes; ++plane)
call_void_memop(vb, finish, vb->planes[plane].mem_priv); call_void_memop(vb, finish,
vb->planes[plane].mem_priv);
}
vb->synced = 0; vb->synced = 0;
} }
......
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