diff options
| author | Robby Cai <R63905@freescale.com> | 2010-12-13 17:36:38 +0800 |
|---|---|---|
| committer | Robby Cai <R63905@freescale.com> | 2010-12-13 17:45:22 +0800 |
| commit | 3862b1becab6968996a605845ca2e827273903f1 (patch) | |
| tree | 64dce9b198e6a6504271bd27d5693d52d7b238d3 | |
| parent | e595caa10fa849727280f4052d74536ba8fd0b39 (diff) | |
ENGR00136875-2 make video buffer cacheable to improve video performance
Use pgprot_writethru() instead of pgprot_noncached()
Signed-off-by: Robby Cai <R63905@freescale.com>
| -rw-r--r-- | drivers/media/video/videobuf-dma-contig.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/videobuf-dma-contig.c b/drivers/media/video/videobuf-dma-contig.c index 3d9a6aa00420..f57db6034a25 100644 --- a/drivers/media/video/videobuf-dma-contig.c +++ b/drivers/media/video/videobuf-dma-contig.c @@ -306,7 +306,7 @@ static int __videobuf_mmap_mapper(struct videobuf_queue *q, size = vma->vm_end - vma->vm_start; size = (size < mem->size) ? size : mem->size; - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + vma->vm_page_prot = pgprot_writethru(vma->vm_page_prot); retval = remap_pfn_range(vma, vma->vm_start, mem->dma_handle >> PAGE_SHIFT, size, vma->vm_page_prot); |