diff options
| author | Robby Cai <r63905@freescale.com> | 2009-08-07 15:28:14 +0800 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2012-01-09 19:53:39 +0800 |
| commit | c1a49042210de3fb8e3cefffe53f6e9e49b34f33 (patch) | |
| tree | ced2f8c46a01817feee08298469bfd0b8bde3968 | |
| parent | 63adfaca1bdf7799c1a84b9d3ff5309b072ff80e (diff) | |
ENGR00114911 make video buffer cacheable to improve video performance
use pgprot_writethru instead
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 c9691115f2d2..669f4ae8fa97 100644 --- a/drivers/media/video/videobuf-dma-contig.c +++ b/drivers/media/video/videobuf-dma-contig.c @@ -298,7 +298,7 @@ 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); |