This patch adds a linux,cma-heap property for CMA reserved memory regions, which will be used to allow the region to be exposed via the DMA-BUF Heaps interface
Cc: Rob Herring <[email protected]> Cc: Sumit Semwal <[email protected]> Cc: "Andrew F. Davis" <[email protected]> Cc: Benjamin Gaignard <[email protected]> Cc: Liam Mark <[email protected]> Cc: Pratik Patel <[email protected]> Cc: Laura Abbott <[email protected]> Cc: Brian Starkey <[email protected]> Cc: Chenbo Feng <[email protected]> Cc: Alistair Strachan <[email protected]> Cc: Sandeep Patil <[email protected]> Cc: Hridya Valsaraju <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Marek Szyprowski <[email protected]> Cc: Robin Murphy <[email protected]> Cc: Andrew Morton <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: John Stultz <[email protected]> --- .../devicetree/bindings/reserved-memory/reserved-memory.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt b/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt index bac4afa3b197..e97b6a4c3bc0 100644 --- a/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt +++ b/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt @@ -68,6 +68,9 @@ Linux implementation note: - If a "linux,cma-default" property is present, then Linux will use the region for the default pool of the contiguous memory allocator. +- If a "linux,cma-heap" property is present, then Linux will expose the + the CMA region via the DMA-BUF Heaps interface. + - If a "linux,dma-default" property is present, then Linux will use the region for the default pool of the consistent DMA allocator. -- 2.17.1
