[PATCH] drm/amdgpu: Enable default GPU reset for dGPU on gfx8/9.

[Alex Deucher]

On Mon, Oct 22, 2018 at 5:20 PM Andrey Grodzovsky
<andrey.grodzovsky at amd.com> wrote:
>
> After testing looks like this subset of ASICs has GPU reset
> working for the most part. Enable reset due to job timeout.
>
> Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 24 +++++++++++++++++++-----
>  1 file changed, 19 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index d11489e..75308d2 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -3292,18 +3292,32 @@ static int amdgpu_device_reset_sriov(struct amdgpu_device *adev,
>   */
>  bool amdgpu_device_should_recover_gpu(struct amdgpu_device *adev)
>  {
> +       struct amdgpu_ip_block *ip_block;
> +
>         if (!amdgpu_device_ip_check_soft_reset(adev)) {
>                 DRM_INFO("Timeout, but no hardware hang detected.\n");
>                 return false;
>         }
>
> -       if (amdgpu_gpu_recovery == 0 || (amdgpu_gpu_recovery == -1  &&
> -                                        !amdgpu_sriov_vf(adev))) {
> -               DRM_INFO("GPU recovery disabled.\n");
> -               return false;
> -       }
> +       if (amdgpu_gpu_recovery == 0)
> +               goto disabled;
> +
> +       if (amdgpu_sriov_vf(adev))
> +               return true;
> +
> +       ip_block = amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_GFX);
> +
> +       if (amdgpu_gpu_recovery == -1  &&
> +                                       ((adev->flags & AMD_IS_APU) ||
> +                                       ip_block->version->major < 8 ||
> +                                       ip_block->version->major > 9))
> +               goto disabled;

I would prefer to tie this to asic_type rather than gfx version.  E.g.,

        switch (adev->asic_type) {
        case CHIP_TOPAZ:
        case CHIP_TONGA:
        case CHIP_FIJI:
        case CHIP_POLARIS10:
        case CHIP_POLARIS11:
        case CHIP_POLARIS12:
        case CHIP_VEGAM:
        case CHIP_VEGA20:
        case CHIP_VEGA10:
        case CHIP_VEGA12:
                break;
        default:
                goto disabled;
        }

Alex

>
>         return true;
> +
> +disabled:
> +               DRM_INFO("GPU recovery disabled.\n");
> +               return false;
>  }
>
>  /**
> --
> 2.7.4
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx