Re: [PATCH] drm/amdgpu: Print UTCL2 client ID on a gpuvm fault

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On Mon, Apr 6, 2020 at 1:42 PM Oak Zeng <Oak.Zeng@xxxxxxx> wrote:
>
> UTCL2 client ID is useful information to get which
> UTCL2 client caused the gpuvm fault. Print it out
> for debug purpose
>
> Change-Id: I733d0127b0ee53aa788f194cefa53cbb55b49c11
> Signed-off-by: Oak Zeng <Oak.Zeng@xxxxxxx>

Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>


> ---
>  drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 3 +++
>  drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c  | 3 +++
>  2 files changed, 6 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> index 78d769e..94a6096 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> @@ -170,6 +170,9 @@ static int gmc_v10_0_process_interrupt(struct amdgpu_device *adev,
>                         dev_err(adev->dev,
>                                 "GCVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
>                                 status);
> +                       dev_err(adev->dev, "\t Faulty UTCL2 client ID: 0x%lx\n",
> +                               REG_GET_FIELD(status,
> +                               GCVM_L2_PROTECTION_FAULT_STATUS, CID));
>                         dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
>                                 REG_GET_FIELD(status,
>                                 GCVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS));
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index 8606f87..fecdbc4 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -362,6 +362,9 @@ static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev,
>                         dev_err(adev->dev,
>                                 "VM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
>                                 status);
> +                       dev_err(adev->dev, "\t Faulty UTCL2 client ID: 0x%lx\n",
> +                               REG_GET_FIELD(status,
> +                               VM_L2_PROTECTION_FAULT_STATUS, CID));
>                         dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
>                                 REG_GET_FIELD(status,
>                                 VM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS));
> --
> 2.7.4
>
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