diff options
| author |   Alex Deucher <alexander.deucher@amd.com> | 2022-03-09 18:02:11 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-03-25 12:40:24 -0400 |
| commit | b818a5d374542ccec73dcfe578a081574029820e (patch) | |
| tree | ee2d225a28041e48b29fc559d1574d7549aabee1 /drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | |
| parent | drm/amdgpu: fix off by one in amdgpu_gfx_kiq_acquire() (diff) | |
| download | linux-dev-b818a5d374542ccec73dcfe578a081574029820e.tar.xz linux-dev-b818a5d374542ccec73dcfe578a081574029820e.zip | |
drm/amdgpu/gmc: use PCI BARs for APUs in passthrough
If the GPU is passed through to a guest VM, use the PCI
BAR for CPU FB access rather than the physical address of
carve out. The physical address is not valid in a guest.
v2: Fix HDP handing as suggested by Michel
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 08ceabd6c853..6009fbfdcc19 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -1456,7 +1456,7 @@ static int gmc_v9_0_mc_init(struct amdgpu_device *adev) */ /* check whether both host-gpu and gpu-gpu xgmi links exist */ - if ((adev->flags & AMD_IS_APU) || + if (((adev->flags & AMD_IS_APU) && !amdgpu_passthrough(adev)) || (adev->gmc.xgmi.supported && adev->gmc.xgmi.connected_to_cpu)) { adev->gmc.aper_base = |