bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-30 04:22:32 -04:00
Code Issues Packages Projects Releases Wiki Activity

dma-buf: add enum dma_resv_usage v4

Browse Source 
This change adds the dma_resv_usage enum and allows us to specify why a
dma_resv object is queried for its containing fences.

Additional to that a dma_resv_usage_rw() helper function is added to aid
retrieving the fences for a read or write userspace submission.

This is then deployed to the different query functions of the dma_resv
object and all of their users. When the write paratermer was previously
true we now use DMA_RESV_USAGE_WRITE and DMA_RESV_USAGE_READ otherwise.

v2: add KERNEL/OTHER in separate patch
v3: some kerneldoc suggestions by Daniel
v4: some more kerneldoc suggestions by Daniel, fix missing cases lost in
    the rebase pointed out by Bas.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220407085946.744568-2-christian.koenig@amd.com
This commit is contained in:
Christian König
2021-11-09 11:08:18 +01:00
parent 6e87601b7e
commit 7bc80a5462
46 changed files with 215 additions and 126 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View File

@@ -9236,7 +9236,8 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
* deadlock during GPU reset when this fence will not signal
* but we hold reservation lock for the BO.
*/
r = dma_resv_wait_timeout(abo->tbo.base.resv, true, false,
r = dma_resv_wait_timeout(abo->tbo.base.resv,
DMA_RESV_USAGE_WRITE, false,
msecs_to_jiffies(5000));
if (unlikely(r <= 0))
DRM_ERROR("Waiting for fences timed out!");