From b6ba2057f7823352bbc44ee846faa03b36e8b6ac Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 1 Mar 2013 15:44:20 -0300 Subject: [media] videobuf2: add gfp_flags Some drivers have special memory requirements for their buffers, usually related to DMA (e.g. GFP_DMA or __GFP_DMA32). Make it possible to specify additional GFP flags for those buffers by adding a gfp_flags field to vb2_queue. Note that this field will be replaced in the future with a different mechanism, but that is still work in progress and we need this feature now so we won't be able to convert drivers with such requirements to vb2. Signed-off-by: Hans Verkuil Acked-by: Marek Szyprowski Acked-by: Federico Vaga Signed-off-by: Mauro Carvalho Chehab --- drivers/media/v4l2-core/videobuf2-dma-sg.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/media/v4l2-core/videobuf2-dma-sg.c') diff --git a/drivers/media/v4l2-core/videobuf2-dma-sg.c b/drivers/media/v4l2-core/videobuf2-dma-sg.c index 25c3b360e1ad..952776fafe2c 100644 --- a/drivers/media/v4l2-core/videobuf2-dma-sg.c +++ b/drivers/media/v4l2-core/videobuf2-dma-sg.c @@ -33,7 +33,7 @@ struct vb2_dma_sg_buf { static void vb2_dma_sg_put(void *buf_priv); -static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size) +static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_flags) { struct vb2_dma_sg_buf *buf; int i; @@ -60,7 +60,8 @@ static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size) goto fail_pages_array_alloc; for (i = 0; i < buf->sg_desc.num_pages; ++i) { - buf->pages[i] = alloc_page(GFP_KERNEL | __GFP_ZERO | __GFP_NOWARN); + buf->pages[i] = alloc_page(GFP_KERNEL | __GFP_ZERO | + __GFP_NOWARN | gfp_flags); if (NULL == buf->pages[i]) goto fail_pages_alloc; sg_set_page(&buf->sg_desc.sglist[i], -- cgit v1.2.3