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drm/amdgpu/cik: don't mess with aspm if gpu is root bus
author
Alex Deucher
<alexander.deucher@amd.com>
Thu, 4 Feb 2016 15:33:59 +0000
(10:33 -0500)
committer
Alex Deucher
<alexander.deucher@amd.com>
Mon, 8 Feb 2016 15:37:41 +0000
(10:37 -0500)
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>
drivers/gpu/drm/amd/amdgpu/cik.c
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diff --git
a/drivers/gpu/drm/amd/amdgpu/cik.c
b/drivers/gpu/drm/amd/amdgpu/cik.c
index
fd9c958
..
5c978e0
100644
(file)
--- 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;