Commit 9f04eb7a authored by Peng Ju Zhou's avatar Peng Ju Zhou Committed by Alex Deucher
Browse files

drm/amdgpu: Skip the program of MMMC_VM_AGP_* in SRIOV 



KMD should not program these registers, the value were
defined in the host, so skip them in the SRIOV environment.

Signed-off-by: default avatarPeng Ju Zhou <PengJu.Zhou@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent f5e25a83

drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c

+5 −5
Original line number Diff line number Diff line
@@ -224,12 +224,12 @@ static void mmhub_v2_0_init_system_aperture_regs(struct amdgpu_device *adev) 
	uint64_t value;

	uint32_t tmp;



	if (!amdgpu_sriov_vf(adev)) {

		/* Program the AGP BAR */

		WREG32_SOC15_RLC(MMHUB, 0, mmMMMC_VM_AGP_BASE, 0);

		WREG32_SOC15_RLC(MMHUB, 0, mmMMMC_VM_AGP_BOT, adev->gmc.agp_start >> 24);

		WREG32_SOC15_RLC(MMHUB, 0, mmMMMC_VM_AGP_TOP, adev->gmc.agp_end >> 24);



	if (!amdgpu_sriov_vf(adev)) {

		/* Program the system aperture low logical page number. */

		WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_LOW_ADDR,

			     min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18);