Re: [PATCH 2/2] drm/amdgpu: enable runtime pm on vega10 when noretry=0

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On 6/24/2020 3:05 PM, Alex Deucher wrote:
[CAUTION: External Email]

The failures with ROCm only happen with noretry=1, so
enable runtime pm when noretry=0 (the current default).

Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
  drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 6 +++++-
  1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 0fec39eed164..341d072edd95 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -176,7 +176,6 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
                 case CHIP_BONAIRE:
                 case CHIP_HAWAII:
  #endif
-               case CHIP_VEGA10:
                 case CHIP_VEGA20:
                 case CHIP_ARCTURUS:
                 case CHIP_SIENNA_CICHLID:
@@ -184,6 +183,11 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
                         if (amdgpu_runtime_pm > 0)
                                 adev->runpm = true;
                         break;
+               case CHIP_VEGA10:
+                       /* turn runpm on if noretry=0 */
+                       if (!amdgpu_noretry)
+                               adev->runpm = true;
+                       break;

Though it fixes the ROCm pytorch issue but aren't there any stability and performance optimization concerns as it will impact recoverable page faults?

I have no objection to this otherwise.

+ felix

Acked-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@xxxxxxx>


                 default:
                         /* enable runpm on VI+ */
                         adev->runpm = true;
--
2.25.4

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