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/openbmc/linux/drivers/gpu/drm/amd/amdgpu/ |
H A D | mmhub_v3_0.c | 60b73429 Wed Jan 11 00:59:39 CST 2023 Yifan Zha <Yifan.Zha@amd.com> drm/amdgpu: Skip specific mmhub and sdma registers accessing under sriov
[Why] SDMA0_CNTL and MMHUB system aperture related registers are blocked by L1 Policy. Therefore, they cannot be accessed by VF and loged in violation.
[How] For MMHUB registers, they will be programmed by PF. So VF will skip to program them in mmhubv3_0. For SDMA0_CNTL which is a PF_only register, VF don't need to program it in sdma_v6_0.
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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H A D | sdma_v6_0.c | 60b73429 Wed Jan 11 00:59:39 CST 2023 Yifan Zha <Yifan.Zha@amd.com> drm/amdgpu: Skip specific mmhub and sdma registers accessing under sriov
[Why] SDMA0_CNTL and MMHUB system aperture related registers are blocked by L1 Policy. Therefore, they cannot be accessed by VF and loged in violation.
[How] For MMHUB registers, they will be programmed by PF. So VF will skip to program them in mmhubv3_0. For SDMA0_CNTL which is a PF_only register, VF don't need to program it in sdma_v6_0.
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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