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| author | Alex Deucher <alexander.deucher@amd.com> | 2016-02-04 18:33:59 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-02-08 18:37:41 +0300 |
| commit | 76ecb2c75bc772050f2e0462b9cf0163cc43046e (patch) | |
| tree | 9150708e7467bc0885cdaef7fdeb456d364086da /drivers/gpu/drm/amd/amdgpu/cik.c | |
| parent | cd474ba0d6048aeefe6f1066a6bfb5eac36a2a81 (diff) | |
| download | linux-76ecb2c75bc772050f2e0462b9cf0163cc43046e.tar.xz | |
drm/amdgpu/cik: don't mess with aspm if gpu is root bus
Pcie registers may not be available in a virtualized
environment.
Reviewed-by: monk liu <monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/cik.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/cik.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c index fd9c9588ef46..5c978e064f47 100644 --- a/drivers/gpu/drm/amd/amdgpu/cik.c +++ b/drivers/gpu/drm/amd/amdgpu/cik.c @@ -1762,6 +1762,9 @@ static void cik_program_aspm(struct amdgpu_device *adev) if (amdgpu_aspm == 0) return; + if (pci_is_root_bus(adev->pdev->bus)) + return; + /* XXX double check APUs */ if (adev->flags & AMD_IS_APU) return; |