[PATCH] drm/amdgpu: Fixed ras warning when uninstalling amdgpu

[Zhang, Hawking]

[AMD Official Use Only - General]

Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>

Regards,
Hawking
-----Original Message-----
From: Chai, Thomas <YiPeng.Chai at amd.com> 
Sent: Thursday, September 22, 2022 09:37
To: amd-gfx at lists.freedesktop.org
Cc: Zhang, Hawking <Hawking.Zhang at amd.com>; Zhou1, Tao <Tao.Zhou1 at amd.com>; Clements, John <John.Clements at amd.com>; Yang, Stanley <Stanley.Yang at amd.com>
Subject: RE: [PATCH] drm/amdgpu: Fixed ras warning when uninstalling amdgpu

[AMD Official Use Only - General]

Ping ...


-----------------
Best Regards,
Thomas

-----Original Message-----
From: Chai, Thomas <YiPeng.Chai at amd.com> 
Sent: Tuesday, September 20, 2022 10:07 AM
To: amd-gfx at lists.freedesktop.org
Cc: Chai, Thomas <YiPeng.Chai at amd.com>; Zhang, Hawking <Hawking.Zhang at amd.com>; Zhou1, Tao <Tao.Zhou1 at amd.com>; Clements, John <John.Clements at amd.com>; Yang, Stanley <Stanley.Yang at amd.com>; Chai, Thomas <YiPeng.Chai at amd.com>
Subject: [PATCH] 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 at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index e55f106621ef..3deb716710e6 100644
--- 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;
 }
--
2.25.1