[PATCH] drm/amdgpu: Reduce redundant gpu resets on nbio v7.4

[Zhou1, Tao]

[AMD Official Use Only - AMD Internal Distribution Only]

Reviewed-by: Tao Zhou <tao.zhou1 at amd.com>

> -----Original Message-----
> From: Chai, Thomas <YiPeng.Chai at amd.com>
> Sent: Tuesday, October 22, 2024 2:33 PM
> To: amd-gfx at lists.freedesktop.org
> Cc: Zhang, Hawking <Hawking.Zhang at amd.com>; Zhou1, Tao
> <Tao.Zhou1 at amd.com>; Li, Candice <Candice.Li at amd.com>; Wang, Yang(Kevin)
> <KevinYang.Wang at amd.com>; Yang, Stanley <Stanley.Yang at amd.com>; Chai,
> Thomas <YiPeng.Chai at amd.com>
> Subject: [PATCH] drm/amdgpu: Reduce redundant gpu resets on nbio v7.4
>
> On nbio v7.4, ras controller interrupt and athub interrupt are generated after injecting
> UE to PCIE, but gpu reset only needs to be triggered once.
>
> Signed-off-by: YiPeng Chai <YiPeng.Chai at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
> b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
> index 9446bf6f82c1..97782a73f4b0 100644
> --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
> +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
> @@ -414,8 +414,7 @@ static void
> nbio_v7_4_handle_ras_controller_intr_no_bifring(struct amdgpu_device
>               /* ras_controller_int is dedicated for nbif ras error,
>                * not the global interrupt for sync flood
>                */
> -             amdgpu_ras_set_fed(adev, true);
> -             amdgpu_ras_reset_gpu(adev);
> +             amdgpu_ras_global_ras_isr(adev);
>       }
>
>       amdgpu_ras_error_data_fini(&err_data);
> --
> 2.34.1