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Commit 76ecb2c7 authored by Alex Deucher's avatar Alex Deucher
Browse files

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: default avatarmonk liu <monk.liu@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent cd474ba0

drivers/gpu/drm/amd/amdgpu/cik.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -1762,6 +1762,9 @@ static void cik_program_aspm(struct amdgpu_device *adev) 
	if (amdgpu_aspm == 0)

	if (amdgpu_aspm == 0)

		return;

		return;





	if (pci_is_root_bus(adev->pdev->bus))

		return;



	/* XXX double check APUs */

	/* XXX double check APUs */

	if (adev->flags & AMD_IS_APU)

	if (adev->flags & AMD_IS_APU)

		return;

		return;