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drm/amdgpu: skip SMU FW reloading in runpm BACO case

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SMU is always alive, so it's fine to skip SMU FW reloading
when runpm resumed from BACO, this can avoid some race issues
when resuming SMU.

Suggested-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Guchun Chen
2022-07-14 15:55:37 +08:00
committed by Alex Deucher
parent 50fe04d46a
commit f746556aa9
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
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@@ -2348,6 +2348,13 @@ static int psp_load_smu_fw(struct psp_context *psp)
&adev->firmware.ucode[AMDGPU_UCODE_ID_SMC];
struct amdgpu_ras *ras = psp->ras_context.ras;
/*
* Skip SMU FW reloading in case of using BACO for runpm only,
* as SMU is always alive.
*/
if (adev->in_runpm && (adev->pm.rpm_mode == AMDGPU_RUNPM_BACO))
return 0;
if (!ucode->fw || amdgpu_sriov_vf(psp->adev))
return 0;