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authorRob Clark <robdclark@chromium.org>2022-11-01 14:40:51 -0700
committerRob Clark <robdclark@chromium.org>2022-11-17 07:50:50 -0800
commitc901a8cae606078e9242d26d72f8f5b8a8001e29 (patch)
tree04944bd01c77cdf01e2332496ead6c39a67cea12 /drivers
parent7f7a942c0a338c4a2a7b359bdb2b68e9896122ec (diff)
downloadlinux-c901a8cae606078e9242d26d72f8f5b8a8001e29.tar.bz2
drm/msm: Remove exclusive-fence hack
The workaround was initially necessary due to dma_resv having only a single exclusive fence slot, yet whe don't necessarily know what order the gpu scheduler will schedule jobs. Unfortunately this workaround also has the result of forcing implicit sync, even when userspace does not want it. However, since commit 047a1b877ed4 ("dma-buf & drm/amdgpu: remove dma_resv workaround") the workaround is no longer needed. So remove it. This effectively reverts commit f1b3f696a084 ("drm/msm: Don't break exclusive fence ordering") Signed-off-by: Rob Clark <robdclark@chromium.org> Patchwork: https://patchwork.freedesktop.org/patch/509457/ Link: https://lore.kernel.org/r/20221101214051.159988-1-robdclark@gmail.com
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/msm/msm_gem_submit.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 5599d93ec0d2..cc48f73adadf 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -334,8 +334,7 @@ static int submit_fence_sync(struct msm_gem_submit *submit, bool no_implicit)
if (ret)
return ret;
- /* exclusive fences must be ordered */
- if (no_implicit && !write)
+ if (no_implicit)
continue;
ret = drm_sched_job_add_implicit_dependencies(&submit->base,