[PATCH 1/3] drm/amdgpu/gmc11: disable AGP aperture

[Wang, Yang(Kevin)]

Series is
Reviewed-by: Yang Wang <kevinyang.wang at amd.com>

Best Regards,
Kevin

-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Alex Deucher
Sent: Thursday, November 9, 2023 10:42 PM
To: amd-gfx at lists.freedesktop.org
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>
Subject: [PATCH 1/3] 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.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
index 6dce9b29f675..e1cac5da9c4b 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
@@ -640,9 +640,6 @@ static void gmc_v11_0_vram_gtt_location(struct amdgpu_device *adev,
 	amdgpu_gmc_set_agp_default(adev, mc);
 	amdgpu_gmc_vram_location(adev, &adev->gmc, base);
 	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_gmc_agp_location(adev, mc);
 
 	/* base offset of vram pages */
 	if (amdgpu_sriov_vf(adev))
--
2.41.0