GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

dma-buf: heaps: Rework heap allocation hooks to return struct dma_buf instead of fd

Browse source 
Every heap needs to create a dmabuf and then export it to a fd
via dma_buf_fd(), so to consolidate things a bit, have the heaps
just return a struct dmabuf * and let the top level
dma_heap_buffer_alloc() call handle creating the fd via
dma_buf_fd().

Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Liam Mark <lmark@codeaurora.org>
Cc: Laura Abbott <labbott@kernel.org>
Cc: Brian Starkey <Brian.Starkey@arm.com>
Cc: Hridya Valsaraju <hridya@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Sandeep Patil <sspatil@google.com>
Cc: Daniel Mentz <danielmentz@google.com>
Cc: Chris Goldsworthy <cgoldswo@codeaurora.org>
Cc: Ørjan Eide <orjan.eide@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Ezequiel Garcia <ezequiel@collabora.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: James Jones <jajones@nvidia.com>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
 [sumits: minor reword of commit message]

Link: https://patchwork.freedesktop.org/patch/msgid/20210119204508.9256-3-john.stultz@linaro.org
This commit is contained in:
John Stultz 2021-01-19 20:45:08 +00:00 • committed by Sumit Semwal
parent 14a117252f
commit c7f59e3dd6
4 changed files with 33 additions and 36 deletions
Download patch file Download diff file Expand all files Collapse all files

12
include/linux/dma-heap.h
View file

@ -16,15 +16,15 @@ struct dma_heap;
/**
* struct dma_heap_ops - ops to operate on a given heap
* @allocate: allocate dmabuf and return fd
* @allocate: allocate dmabuf and return struct dma_buf ptr
*
* allocate returns dmabuf fd on success, -errno on error.
* allocate returns dmabuf on success, ERR_PTR(-errno) on error.
*/
struct dma_heap_ops {
int (*allocate)(struct dma_heap *heap,
unsigned long len,
unsigned long fd_flags,
unsigned long heap_flags);
struct dma_buf *(*allocate)(struct dma_heap *heap,
unsigned long len,
unsigned long fd_flags,
unsigned long heap_flags);
};
/**