Re: [PATCH] drm/amdgpu: default noretry=0 for navi1x and newer

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Am 2020-11-30 um 1:58 p.m. schrieb Alex Deucher:
> There are no performance advantages to setting it to 1 and
> it causes stability issues in some cases.
>
> Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1374
> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> index fede84509dbc..02b2ee9b8939 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> @@ -422,11 +422,6 @@ void amdgpu_gmc_noretry_set(struct amdgpu_device *adev)
>  
>  	switch (adev->asic_type) {
>  	case CHIP_VEGA20:
> -	case CHIP_NAVI10:
> -	case CHIP_NAVI14:
> -	case CHIP_SIENNA_CICHLID:
> -	case CHIP_NAVY_FLOUNDER:
> -	case CHIP_DIMGREY_CAVEFISH:
>  		/*
>  		 * noretry = 0 will cause kfd page fault tests fail
>  		 * for some ASICs, so set default to 1 for these ASICs.
> @@ -437,6 +432,11 @@ void amdgpu_gmc_noretry_set(struct amdgpu_device *adev)
>  			gmc->noretry = amdgpu_noretry;
>  		break;
>  	case CHIP_RAVEN:
> +	case CHIP_NAVI10:
> +	case CHIP_NAVI14:
> +	case CHIP_SIENNA_CICHLID:
> +	case CHIP_NAVY_FLOUNDER:
> +	case CHIP_DIMGREY_CAVEFISH:

Is there any point listing those chips here explicitly, given that it's
the default case? Anyway, the patch is

Acked-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>

>  	default:
>  		/* Raven currently has issues with noretry
>  		 * regardless of what we decide for other

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