Re: [PATCH 1/2] drm/amdgpu: stop cp resume when compute ring test failed

[Christian König <ckoenig.leichtzumerken@xxxxxxxxx>]

Am 23.04.20 um 11:01 schrieb Hawking Zhang:
> driver should stop cp resume once compute
> ring test failed

Mhm intentionally ignored those errors because the compute rings 
sometimes doesn't come up again after a GPU reset.

We even have the necessary logic in the SW scheduler to redirect the 
jobs to another compute ring when one fails to come up again.

Christian.

> Change-Id: I4cd3328f38e0755d0c877484936132d204c9fe50
> Signed-off-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
> ---
>   drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 4 +++-
>   drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 4 +++-
>   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 4 +++-
>   3 files changed, 9 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
> index b2f10e3..fcee758 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
> @@ -3132,7 +3132,9 @@ static int gfx_v7_0_cp_compute_resume(struct amdgpu_device *adev)
>   
>   	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
>   		ring = &adev->gfx.compute_ring[i];
> -		amdgpu_ring_test_helper(ring);
> +		r = amdgpu_ring_test_helper(ring);
> +		if (r)
> +			return r;
>   	}
>   
>   	return 0;
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> index 6c56ced..8dc8e90 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> @@ -4781,7 +4781,9 @@ static int gfx_v8_0_cp_test_all_rings(struct amdgpu_device *adev)
>   
>   	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
>   		ring = &adev->gfx.compute_ring[i];
> -		amdgpu_ring_test_helper(ring);
> +		r = amdgpu_ring_test_helper(ring);
> +		if (r)
> +			return r;
>   	}
>   
>   	return 0;
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> index 09aa5f5..20937059 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> @@ -3846,7 +3846,9 @@ static int gfx_v9_0_cp_resume(struct amdgpu_device *adev)
>   
>   	for (i = 0; i < adev->gfx.num_compute_rings; i++) {
>   		ring = &adev->gfx.compute_ring[i];
> -		amdgpu_ring_test_helper(ring);
> +		r = amdgpu_ring_test_helper(ring);
> +		if (r)
> +			return r;
>   	}
>   
>   	gfx_v9_0_enable_gui_idle_interrupt(adev, true);

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