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| author | Jesse Zhang <jesse.zhang@amd.com> | 2025-06-16 19:21:41 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-06 11:04:23 +0200 |
| commit | 2d42cf5d31a4e33d06092e1953d672ef262fd893 (patch) | |
| tree | 3655364bd43122010a4b3ab4b685f481686e7da8 /drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | |
| parent | 0b48de06f58488c935a538a70d5c77317381124c (diff) | |
drm/amdgpu: Fix SDMA UTC_L1 handling during start/stop sequences
commit 7f3b16f3f229e37cc3e02e9e4e7106c523b119e9 upstream.
This commit makes two key fixes to SDMA v4.4.2 handling:
1. disable UTC_L1 in sdma_cntl register when stopping SDMA engines
by reading the current value before modifying UTC_L1_ENABLE bit.
2. Ensure UTC_L1_ENABLE is consistently managed by:
- Adding the missing register write when enabling UTC_L1 during start
- Keeping UTC_L1 enabled by default as per hardware requirements
v2: Correct SDMA_CNTL setting (Philip)
Suggested-by: Jonathan Kim <jonathan.kim@amd.com>
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 375bf564654e85a7b1b0657b191645b3edca1bda)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c')
0 files changed, 0 insertions, 0 deletions