[PATCH 3/3] drm/amdgpu/gmc11: disable AGP on GC 11.5

[Wang, Yang(Kevin)]

[AMD Official Use Only - General]

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, September 21, 2023 1:58 AM
To: amd-gfx at lists.freedesktop.org
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>
Subject: [PATCH 3/3] drm/amdgpu/gmc11: disable AGP on GC 11.5

AGP aperture is deprecated and no longer functional.

v2: fix typo (Alex)
v3: just skip the agp setup call
v4: revert back to the original model

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
index 28dc08fe542b..9de5659ecfba 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
@@ -741,7 +741,8 @@ static int gmc_v11_0_mc_init(struct amdgpu_device *adev)
        else
                adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;

-       if (amdgpu_sriov_vf(adev))
+       if (amdgpu_sriov_vf(adev) ||
+           (amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(11, 5, 0)))
                adev->gmc.disable_agp = true;
        gmc_v11_0_vram_gtt_location(adev, &adev->gmc);

--
2.41.0