From: Jeffrey Kardatzke <[email protected]>
Adds documentation for V4L2_MEMORY_FLAG_SECURE.
Signed-off-by: Jeffrey Kardatzke <[email protected]>
Signed-off-by: Yunfei Dong <[email protected]>
---
Documentation/userspace-api/media/v4l/buffer.rst | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/Documentation/userspace-api/media/v4l/buffer.rst b/Documentation/userspace-api/media/v4l/buffer.rst
index 52bbee81c080..a5a7d1c72d53 100644
--- a/Documentation/userspace-api/media/v4l/buffer.rst
+++ b/Documentation/userspace-api/media/v4l/buffer.rst
@@ -696,7 +696,7 @@ enum v4l2_memory
.. _memory-flags:
-Memory Consistency Flags
+Memory Flags
------------------------
.. raw:: latex
@@ -728,6 +728,12 @@ Memory Consistency Flags
only if the buffer is used for :ref:`memory mapping <mmap>` I/O and the
queue reports the :ref:`V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS
<V4L2-BUF-CAP-SUPPORTS-MMAP-CACHE-HINTS>` capability.
+ * .. _`V4L2-MEMORY-FLAG-SECURE`:
+
+ - ``V4L2_MEMORY_FLAG_SECURE``
+ - 0x00000002
+ - DMA bufs passed into the queue will be validated to ensure they were
+ allocated from a secure dma-heap.
.. raw:: latex
--
2.18.0