On 1/18/19 10:37 AM, Liam Mark wrote:
Add support for configuring dma mapping attributes when mapping and unmapping memory through dma_buf_map_attachment and dma_buf_unmap_attachment.
Signed-off-by: Liam Mark lmark@codeaurora.org
include/linux/dma-buf.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h index 58725f890b5b..59bf33e09e2d 100644 --- a/include/linux/dma-buf.h +++ b/include/linux/dma-buf.h @@ -308,6 +308,8 @@ struct dma_buf {
- @dev: device attached to the buffer.
- @node: list of dma_buf_attachment.
- @priv: exporter specific attachment data.
- @dma_map_attrs: DMA mapping attributes to be used in
dma_buf_map_attachment() and dma_buf_unmap_attachment().- This structure holds the attachment information between the dma_buf buffer
- and its user device(s). The list contains one attachment struct per device
@@ -323,6 +325,7 @@ struct dma_buf_attachment { struct device *dev; struct list_head node; void *priv;
- unsigned long dma_map_attrs; };
/**
Did you miss part of this patch? This only adds it to the structure but doesn't add it to any API. The same commment applies to the follow up patch, I don't quite see how it's being used.
Thanks, Laura