[PATCH 4/4] drm/amdgpu/gmc11: disable AGP on GC 11.5

[Alex Deucher]

AGP aperture is deprecated and no longer functional.

v2: fix typo (Alex)

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

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
index e8dc002b5a79..e04ae66fef1c 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
@@ -742,6 +742,9 @@ static int gmc_v11_0_mc_init(struct amdgpu_device *adev)
 
 	/* force GART to avoid a hw issue in GC11 */
 	adev->gmc.gart_placement = AMDGPU_GART_PLACEMENT_HIGH;
+	/* AGP aperture is removed on GC11.5 */
+	if (amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(11, 5, 0))
+		adev->gmc.no_agp = true;
 
 	gmc_v11_0_vram_gtt_location(adev, &adev->gmc);
 
-- 
2.41.0