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drm/amdgpu: toggle DF-Cstate when accessing UMC ras error related registers

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On arcturus, DF-Cstate needs to be toggled off/on
before and after accessing UMC error counter and
error address registers, otherwise, clearing such
registers may fail.

Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: John Clements <John.Clements@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Guchun Chen 2020-03-04 21:50:01 +08:00 committed by Alex Deucher
parent 1b3460a8b1
commit d38c3ac716
1 changed files with 16 additions and 0 deletions
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16
drivers/gpu/drm/amd/amdgpu/umc_v6_1.c
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@ -186,6 +186,10 @@ static void umc_v6_1_query_ras_error_count(struct amdgpu_device *adev,
if (rsmu_umc_index_state)
umc_v6_1_disable_umc_index_mode(adev);
if ((adev->asic_type == CHIP_ARCTURUS) &&
amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_DISALLOW))
DRM_WARN("Fail to disable DF-Cstate.\n");
LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
umc_reg_offset = get_umc_6_reg_offset(adev,
umc_inst,
@ -199,6 +203,10 @@ static void umc_v6_1_query_ras_error_count(struct amdgpu_device *adev,
&(err_data->ue_count));
}
if ((adev->asic_type == CHIP_ARCTURUS) &&
amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_ALLOW))
DRM_WARN("Fail to enable DF-Cstate\n");
if (rsmu_umc_index_state)
umc_v6_1_enable_umc_index_mode(adev);
}
@ -288,6 +296,10 @@ static void umc_v6_1_query_ras_error_address(struct amdgpu_device *adev,
if (rsmu_umc_index_state)
umc_v6_1_disable_umc_index_mode(adev);
if ((adev->asic_type == CHIP_ARCTURUS) &&
amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_DISALLOW))
DRM_WARN("Fail to disable DF-Cstate.\n");
LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
umc_reg_offset = get_umc_6_reg_offset(adev,
umc_inst,
@ -300,6 +312,10 @@ static void umc_v6_1_query_ras_error_address(struct amdgpu_device *adev,
umc_inst);
}
if ((adev->asic_type == CHIP_ARCTURUS) &&
amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_ALLOW))
DRM_WARN("Fail to enable DF-Cstate\n");
if (rsmu_umc_index_state)
umc_v6_1_enable_umc_index_mode(adev);
}