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From:   Liam Mark <lmark@codeaurora.org>
To:     labbott@redhat.com, sumit.semwal@linaro.org
Cc:     arve@android.com, tkjos@android.com, maco@android.com,
        joel@joelfernandes.org, christian@brauner.io,
        devel@driverdev.osuosl.org, dri-devel@lists.freedesktop.org,
        linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org,
        afd@ti.com, john.stultz@linaro.org,
        Liam Mark <lmark@codeaurora.org>
Subject: [PATCH 3/4] dma-buf: add support for mapping with dma mapping attributes
Date:   Fri, 18 Jan 2019 10:37:46 -0800
Message-Id: <1547836667-13695-4-git-send-email-lmark@codeaurora.org>
In-Reply-To: <1547836667-13695-1-git-send-email-lmark@codeaurora.org>
References: <1547836667-13695-1-git-send-email-lmark@codeaurora.org>
Sender: linux-kernel-owner@vger.kernel.org
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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;
 };
 
 /**
-- 
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