Commit 6dca7efe authored by Guchun Chen's avatar Guchun Chen Committed by Alex Deucher

drm/amd/pm/smu11: BACO is supported when it's in BACO state

Return true early if ASIC is in BACO state already, no need
to talk to SMU. It can fix the issue that driver was not
calling BACO exit at all in runtime pm resume, and a timing
issue leading to a PCI AER error happened eventually.

Fixes: 8795e182 ("PCI/portdrv: Don't disable AER reporting in get_port_device_capability()")
Suggested-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Signed-off-by: default avatarGuchun Chen <guchun.chen@amd.com>
Reviewed-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Reviewed-by: default avatarEvan Quan <evan.quan@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 6d96ced7
......@@ -1588,6 +1588,10 @@ bool smu_v11_0_baco_is_support(struct smu_context *smu)
if (amdgpu_sriov_vf(smu->adev) || !smu_baco->platform_support)
return false;
/* return true if ASIC is in BACO state already */
if (smu_v11_0_baco_get_state(smu) == SMU_BACO_STATE_ENTER)
return true;
/* Arcturus does not support this bit mask */
if (smu_cmn_feature_is_supported(smu, SMU_FEATURE_BACO_BIT) &&
!smu_cmn_feature_is_enabled(smu, SMU_FEATURE_BACO_BIT))
......
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