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| author | Jesse Zhang <jesse.zhang@amd.com> | 2025-06-16 19:21:41 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-06-18 12:19:21 -0400 |
| commit | 375bf564654e85a7b1b0657b191645b3edca1bda (patch) | |
| tree | 4e7810157b4affb56146cc0c297444dbcba5b2d0 /drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | |
| parent | 1ab11a82681eb33a66f423216cb063e7f40c6f85 (diff) | |
drm/amdgpu: Fix SDMA UTC_L1 handling during start/stop sequences
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c')
0 files changed, 0 insertions, 0 deletions