drm/amdgpu: Fixed ras warning when uninstalling amdgpu

  For the asic using smu v13_0_2, there is the following
warning when uninstalling amdgpu:
  amdgpu: ras disable gfx failed poison:1 ret:-22.

[Why]:
  For the asic using smu v13_0_2, the psp .suspend and
  mode1reset is called before amdgpu_ras_pre_fini during
  amdgpu uninstall, it has disabled all ras features and
  reset the psp. Since the psp is reset, calling
  amdgpu_ras_disable_all_features in amdgpu_ras_pre_fini
  to disable ras features will fail.

[How]:
  If all ras features are disabled, amdgpu_ras_disable_all_features
  will not be called to disable all ras features again.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index e55f106..3deb716 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -2720,7 +2720,8 @@ int amdgpu_ras_pre_fini(struct amdgpu_device *adev)
 
 
        /* Need disable ras on all IPs here before ip [hw/sw]fini */
-       amdgpu_ras_disable_all_features(adev, 0);
+       if (con->features)
+               amdgpu_ras_disable_all_features(adev, 0);
        amdgpu_ras_recovery_fini(adev);
        return 0;
 }