diff options
| author | Yifan Zha <Yifan.Zha@amd.com> | 2022-07-27 13:43:50 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-09-01 15:11:35 -0400 |
| commit | c1026c6f319724dc88fc08d9d9d35bcbdf492b42 (patch) | |
| tree | 4d4951f65e851f74de149f377682968e05f5eed2 /drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c | |
| parent | 425fede6e849df5676a41a520e0064fadc98a6b9 (diff) | |
drm/amdgpu: Skip the program of MMMC_VM_AGP_* in SRIOV on MMHUB v3_0_0
[Why]
VF should not program these registers, the value were defined in the host.
[How]
Skip writing them in SRIOV environment and program them on host side.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Signed-off-by: Horace Chen <horace.chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c index bc11b2de37ae..a1d26c4d80b8 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c @@ -169,17 +169,17 @@ static void mmhub_v3_0_init_system_aperture_regs(struct amdgpu_device *adev) uint64_t value; uint32_t tmp; - /* Disable AGP. */ - WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0); - WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, 0); - WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, 0x00FFFFFF); - if (!amdgpu_sriov_vf(adev)) { /* * the new L1 policy will block SRIOV guest from writing * these regs, and they will be programed at host. * so skip programing these regs. */ + /* Disable AGP. */ + WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0); + WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, 0); + WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, 0x00FFFFFF); + /* Program the system aperture low logical page number. */ WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_LOW_ADDR, adev->gmc.vram_start >> 18); |