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linux-sg2042
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[media] vb2: add dma_dir to the alloc memop 

This is needed for the next patch where the dma-sg alloc memop needs
to know the dma_dir.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Hans Verkuil 2014-11-18 09:50:59 -03:00 committed by Mauro Carvalho Chehab
parent cd474037c4
commit d935c57e8f
5 changed files with 15 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/media/v4l2-core/videobuf2-core.c
View File

@ -189,6 +189,8 @@ static void __vb2_queue_cancel(struct vb2_queue *q);
static int __vb2_buf_mem_alloc(struct vb2_buffer *vb)
{
struct vb2_queue *q = vb->vb2_queue;
enum dma_data_direction dma_dir =
V4L2_TYPE_IS_OUTPUT(q->type) ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
void *mem_priv;
int plane;
@ -200,7 +202,7 @@ static int __vb2_buf_mem_alloc(struct vb2_buffer *vb)
unsigned long size = PAGE_ALIGN(q->plane_sizes[plane]);
mem_priv = call_ptr_memop(vb, alloc, q->alloc_ctx[plane],
size, q->gfp_flags);
size, dma_dir, q->gfp_flags);
if (IS_ERR_OR_NULL(mem_priv))
goto free;

4
drivers/media/v4l2-core/videobuf2-dma-contig.c
View File

@ -155,7 +155,8 @@ static void vb2_dc_put(void *buf_priv)
kfree(buf);
}
static void *vb2_dc_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_flags)
static void *vb2_dc_alloc(void *alloc_ctx, unsigned long size,
enum dma_data_direction dma_dir, gfp_t gfp_flags)
{
struct vb2_dc_conf *conf = alloc_ctx;
struct device *dev = conf->dev;
@ -176,6 +177,7 @@ static void *vb2_dc_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_flags)
/* Prevent the device from being released while the buffer is used */
buf->dev = get_device(dev);
buf->size = size;
buf->dma_dir = dma_dir;
buf->handler.refcount = &buf->refcount;
buf->handler.put = vb2_dc_put;

5
drivers/media/v4l2-core/videobuf2-dma-sg.c
View File

@ -86,7 +86,8 @@ static int vb2_dma_sg_alloc_compacted(struct vb2_dma_sg_buf *buf,
return 0;
}
static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_flags)
static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size,
enum dma_data_direction dma_dir, gfp_t gfp_flags)
{
struct vb2_dma_sg_buf *buf;
int ret;
@ -97,7 +98,7 @@ static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_fla
return NULL;
buf->vaddr = NULL;
buf->dma_dir = DMA_NONE;
buf->dma_dir = dma_dir;
buf->offset = 0;
buf->size = size;
/* size is already page aligned */

4
drivers/media/v4l2-core/videobuf2-vmalloc.c
View File

@ -35,7 +35,8 @@ struct vb2_vmalloc_buf {
static void vb2_vmalloc_put(void *buf_priv);
static void *vb2_vmalloc_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_flags)
static void *vb2_vmalloc_alloc(void *alloc_ctx, unsigned long size,
enum dma_data_direction dma_dir, gfp_t gfp_flags)
{
struct vb2_vmalloc_buf *buf;
@ -45,6 +46,7 @@ static void *vb2_vmalloc_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_fl
buf->size = size;
buf->vaddr = vmalloc_user(buf->size);
buf->dma_dir = dma_dir;
buf->handler.refcount = &buf->refcount;
buf->handler.put = vb2_vmalloc_put;
buf->handler.arg = buf;

4
include/media/videobuf2-core.h
View File

@ -82,7 +82,9 @@ struct vb2_threadio_data;
* unmap_dmabuf.
*/
struct vb2_mem_ops {
void *(*alloc)(void *alloc_ctx, unsigned long size, gfp_t gfp_flags);
void *(*alloc)(void *alloc_ctx, unsigned long size,
enum dma_data_direction dma_dir,
gfp_t gfp_flags);
void (*put)(void *buf_priv);
struct dma_buf *(*get_dmabuf)(void *buf_priv, unsigned long flags);