projects / linux-2.6-microblaze.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 15c3692) | patch
drm/amdgpu: use atomic operation to achieve lockless serialization
authorSunil Khatri <sunil.khatri@amd.com>
Thu, 14 May 2026 07:01:00 +0000 (12:31 +0530)
committerAlex Deucher <alexander.deucher@amd.com>
Mon, 18 May 2026 22:19:25 +0000 (18:19 -0400)
commit4d50a14d346141e03a7c3905e496d91e048bc30c
tree527ceb7ca528126b4ac956a734a2635d774cab6atree
parent15c369257bd85f47a514744f960c5a51c867716fcommit | diff
drm/amdgpu: use atomic operation to achieve lockless serialization

In amdgpu_seq64_alloc there is a possibility that two difference cores
from two separate NODES can try to and could get the same free slot.
So this fixes that race here using atomic test_and_set clear operations.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_seq64.c diff | blob | history
MicroBlaze GIT Repository