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| author | Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> | 2021-01-11 14:45:12 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-01-13 23:48:47 -0500 |
| commit | 98ab5f3513f90f18365d488d02b57efbfbdf274f (patch) | |
| tree | 6b8576bbcaa0c1143cd45a0aa56030c287193539 /drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | |
| parent | 966737906ce063e5d7314aa12664970a1949eb02 (diff) | |
| download | linux-98ab5f3513f90f18365d488d02b57efbfbdf274f.tar.gz linux-98ab5f3513f90f18365d488d02b57efbfbdf274f.tar.bz2 linux-98ab5f3513f90f18365d488d02b57efbfbdf274f.zip | |
drm/amd/display: Fix deadlock during gpu reset v3
[Why]
during idle optimizations we acquire the dc_lock, this lock is also
acquired during gpu_reset so we end up hanging the system due to a
deadlock
[How]
If we are in gpu reset:
- disable idle optimizations and skip calls to the dc function
v2: skip idle optimizations calls
v3: add guard for DCN
Fixes: 71338cb4a7c2b51 ("drm/amd/display: enable idle optimizations for linux (MALL stutter)")
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c')
0 files changed, 0 insertions, 0 deletions