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    Subject[PATCH 3/4] dma-buf: add support for mapping with dma mapping attributes
    Date
    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;
    };

    /**
    --
    Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
    a Linux Foundation Collaborative Project
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