Commit 0db062ea authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu/gmc11: 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

Fixes: 67318cb8 ("drm/amdgpu/gmc11: set gart placement GC11")
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 6ba5b613

drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c

+1 −1
Original line number Diff line number Diff line
@@ -642,7 +642,7 @@ static void gmc_v11_0_vram_gtt_location(struct amdgpu_device *adev, 
	amdgpu_gmc_gart_location(adev, mc, AMDGPU_GART_PLACEMENT_HIGH);

	if (!amdgpu_sriov_vf(adev) &&

	    (amdgpu_ip_version(adev, GC_HWIP, 0) < IP_VERSION(11, 5, 0)) &&

	    (amdgpu_agp != 0))

	    (amdgpu_agp == 1))

		amdgpu_gmc_agp_location(adev, mc);



	/* base offset of vram pages */