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amd/powerplay: arcturus baco reset disable all features

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issue smu cmd to disable all features upon baco entry for arcturus

to mitigate potential dirty I2C controller on boot

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
John Clements 2020-03-19 00:22:32 +08:00 committed by Alex Deucher
parent 31d0271d45
commit 8e025615cf
1 changed files with 13 additions and 8 deletions
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21
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
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@ -1470,21 +1470,26 @@ static int smu_disable_dpm(struct smu_context *smu)
}
/*
* For baco on Arcturus, this operation
* (disable all smu feature) will be handled by SMU FW.
* Disable all enabled SMU features.
* This should be handled in SMU FW, as a backup
* driver can issue call to SMU FW until sequence
* in SMU FW is operational.
*/
if (adev->asic_type == CHIP_ARCTURUS) {
if (use_baco && (smu_version > 0x360e00))
return 0;
}
/* Disable all enabled SMU features */
ret = smu_system_features_control(smu, false);
if (ret) {
pr_err("Failed to disable smu features.\n");
return ret;
}
/*
* Arcturus does not have BACO bit in disable feature mask.
* Enablement of BACO bit on Arcturus should be skipped.
*/
if (adev->asic_type == CHIP_ARCTURUS) {
if (use_baco && (smu_version > 0x360e00))
return 0;
}
/* For baco, need to leave BACO feature enabled */
if (use_baco) {
/*