6.9-stable review patch. If anyone has any objections, please let me know.
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From: Roman Li roman.li@amd.com
commit e2654a4453ba3dac9baacf9980d841d84e15b869 upstream.
[Why] Disable idle optimization for each atomic commit is unnecessary, and can lead to a potential race condition.
[How] Remove idle optimization check from amdgpu_dm_atomic_commit_tail()
Fixes: 196107eb1e15 ("drm/amd/display: Add IPS checks before dcn register access") Cc: stable@vger.kernel.org Reviewed-by: Hamza Mahfooz hamza.mahfooz@amd.com Acked-by: Roman Li roman.li@amd.com Signed-off-by: Roman Li roman.li@amd.com Tested-by: Daniel Wheeler daniel.wheeler@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 --- 1 file changed, 3 deletions(-)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -9149,9 +9149,6 @@ static void amdgpu_dm_atomic_commit_tail
trace_amdgpu_dm_atomic_commit_tail_begin(state);
- if (dm->dc->caps.ips_support && dm->dc->idle_optimizations_allowed) - dc_allow_idle_optimizations(dm->dc, false); - drm_atomic_helper_update_legacy_modeset_state(dev, state); drm_dp_mst_atomic_wait_for_dependencies(state);