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| author | Sumit Semwal <sumit.semwal@ti.com> | 2012-01-27 15:09:27 +0530 |
|---|---|---|
| committer | Sumit Semwal <sumit.semwal@ti.com> | 2012-03-26 11:31:58 +0530 |
| commit | 33ea2dcb39ba50b0b69d1b1dc24702f084b46411 (patch) | |
| tree | ec1e1b0c223e09861341f82d2aa0b13ec841be95 /include/linux/dma-buf.h | |
| parent | 2ed9201bdd9a8e462d768a838fb2bc944c6887a4 (diff) | |
| download | lwn-33ea2dcb39ba50b0b69d1b1dc24702f084b46411.tar.gz lwn-33ea2dcb39ba50b0b69d1b1dc24702f084b46411.zip | |
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: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Sumit Semwal <sumit.semwal@ti.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Diffstat (limited to 'include/linux/dma-buf.h')
| -rw-r--r-- | include/linux/dma-buf.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h index 86f624141048..a885b2689b8f 100644 --- a/include/linux/dma-buf.h +++ b/include/linux/dma-buf.h @@ -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; } |