BackPup/Linux
1
0 Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-10-07 05:31:08 -04:00
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source 
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: Sergey Senozhatsky <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Sergey Senozhatsky authored and Mauro Carvalho Chehab committed 2020-06-23 13:34:06 +02:00
1 parent 38a417e88a
commit dcf3bfe7c7
1 file changed
+10 -4
Download Patch File Download Diff File Expand all files Collapse all files
drivers/media/common/videobuf2/videobuf2-core.c
+10 -4
View File
@@ -304,8 +304,11 @@ static void __vb2_buf_mem_prepare(struct vb2_buffer *vb)
{
unsigned int plane;
for (plane = 0; plane < vb->num_planes; ++plane)
call_void_memop(vb, prepare, vb->planes[plane].mem_priv);
if (vb->need_cache_sync_on_prepare) {
for (plane = 0; plane < vb->num_planes; ++plane)
call_void_memop(vb, prepare,
vb->planes[plane].mem_priv);
}
vb->synced = 1;
}
@@ -317,8 +320,11 @@ static void __vb2_buf_mem_finish(struct vb2_buffer *vb)
{
unsigned int plane;
for (plane = 0; plane < vb->num_planes; ++plane)
call_void_memop(vb, finish, vb->planes[plane].mem_priv);
if (vb->need_cache_sync_on_finish) {
for (plane = 0; plane < vb->num_planes; ++plane)
call_void_memop(vb, finish,
vb->planes[plane].mem_priv);
}
vb->synced = 0;
}