Commit e8c2d3e2 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu/gmc9: disable AGP aperture 



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@amd.com> (v1)
Acked-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarMario Limonciello <mario.limonciello@amd.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com> # PHX & Navi33
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 61fc9369

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

+1 −1
Original line number Diff line number Diff line
@@ -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 */