[PATCH 1/2] drm/amdgpu/gfx11: return early in preempt_ib()

[Alex Deucher]

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Alex

On Thu, Aug 15, 2024 at 1:10 PM Alex Deucher <alexander.deucher at amd.com> wrote:
>
> When MES is enabled KIQ is not available.  Return an error
> when someone uses the debugfs preempt test interface in
> that case.
>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
> index 5685aee479df..5704ad25a49d 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
> @@ -5924,6 +5924,9 @@ static int gfx_v11_0_ring_preempt_ib(struct amdgpu_ring *ring)
>         struct amdgpu_ring *kiq_ring = &kiq->ring;
>         unsigned long flags;
>
> +       if (adev->enable_mes)
> +               return -EINVAL;
> +
>         if (!kiq->pmf || !kiq->pmf->kiq_unmap_queues)
>                 return -EINVAL;
>
> --
> 2.46.0
>