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

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

Signed-off-by: Peng Ju Zhou <PengJu.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Peng Ju Zhou 2021-04-28 15:41:25 +08:00 committed by Alex Deucher
parent f5e25a83c1
commit 9f04eb7acf
1 changed files with 5 additions and 5 deletions
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10
drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
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@ -224,12 +224,12 @@ static void mmhub_v2_0_init_system_aperture_regs(struct amdgpu_device *adev)
uint64_t value;
uint32_t tmp;
/* 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 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);
/* 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);