[PATCH 5/5] drm/amdgpu/gmc9: disable AGP aperture

[Alex Deucher]

Ping on this series.

Alex

On Fri, Nov 10, 2023 at 1:37 PM Alex Deucher <alexander.deucher at amd.com> wrote:
>
> We've had misc reports of random IOMMU page faults when
> this is used.  It's just a rarely used optimization anyway, so
> let's just disable it.  It can still be toggled via the
> module parameter for testing.
>
> v2: leave it configurable via module parameter
>
> Reviewed-by: Yang Wang <kevinyang.wang at amd.com> (v1)
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index 22375fc23412..bd69cf61de06 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -1630,7 +1630,7 @@ static void gmc_v9_0_vram_gtt_location(struct amdgpu_device *adev,
>         } else {
>                 amdgpu_gmc_vram_location(adev, mc, base);
>                 amdgpu_gmc_gart_location(adev, mc, AMDGPU_GART_PLACEMENT_BEST_FIT);
> -               if (!amdgpu_sriov_vf(adev) && (amdgpu_agp != 0))
> +               if (!amdgpu_sriov_vf(adev) && (amdgpu_agp == 1))
>                         amdgpu_gmc_agp_location(adev, mc);
>         }
>         /* base offset of vram pages */
> --
> 2.41.0
>