Commit 33ea2dcb authored by Sumit Semwal's avatar Sumit Semwal

dma-buf: add dma_data_direction to unmap dma_buf_op

Some exporters may use DMA map/unmap APIs in dma-buf ops, which require
enum dma_data_direction for both map and unmap operations.

Thus, the unmap dma_buf_op also needs to have enum dma_data_direction as
a parameter.
Reported-by: default avatarTomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: default avatarSumit Semwal <sumit.semwal@ti.com>
Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: default avatarSumit Semwal <sumit.semwal@linaro.org>
parent 2ed9201b
......@@ -271,16 +271,19 @@ EXPORT_SYMBOL_GPL(dma_buf_map_attachment);
* dma_buf_ops.
* @attach: [in] attachment to unmap buffer from
* @sg_table: [in] scatterlist info of the buffer to unmap
* @direction: [in] direction of DMA transfer
*
*/
void dma_buf_unmap_attachment(struct dma_buf_attachment *attach,
struct sg_table *sg_table)
struct sg_table *sg_table,
enum dma_data_direction direction)
{
if (WARN_ON(!attach || !attach->dmabuf || !sg_table))
return;
mutex_lock(&attach->dmabuf->lock);
attach->dmabuf->ops->unmap_dma_buf(attach, sg_table);
attach->dmabuf->ops->unmap_dma_buf(attach, sg_table,
direction);
mutex_unlock(&attach->dmabuf->lock);
}
......
......@@ -63,7 +63,8 @@ struct dma_buf_ops {
struct sg_table * (*map_dma_buf)(struct dma_buf_attachment *,
enum dma_data_direction);
void (*unmap_dma_buf)(struct dma_buf_attachment *,
struct sg_table *);
struct sg_table *,
enum dma_data_direction);
/* TODO: Add try_map_dma_buf version, to return immed with -EBUSY
* if the call would block.
*/
......@@ -122,7 +123,8 @@ void dma_buf_put(struct dma_buf *dmabuf);
struct sg_table *dma_buf_map_attachment(struct dma_buf_attachment *,
enum dma_data_direction);
void dma_buf_unmap_attachment(struct dma_buf_attachment *, struct sg_table *);
void dma_buf_unmap_attachment(struct dma_buf_attachment *, struct sg_table *,
enum dma_data_direction);
#else
static inline struct dma_buf_attachment *dma_buf_attach(struct dma_buf *dmabuf,
......@@ -166,7 +168,7 @@ static inline struct sg_table *dma_buf_map_attachment(
}
static inline void dma_buf_unmap_attachment(struct dma_buf_attachment *attach,
struct sg_table *sg)
struct sg_table *sg, enum dma_data_direction dir)
{
return;
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment