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| author | Kenneth Feng <kenneth.feng@amd.com> | 2018-12-06 11:56:14 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-12-10 15:28:40 -0500 |
| commit | cf4197ed5796234a53beb71228198c7d1e678947 (patch) | |
| tree | f844b92f49122a276b94d38b6dbab0bac7b08f33 | |
| parent | d55d8be0747c96db28a1d08fc24d22ccd9b448ac (diff) | |
| download | linux-cf4197ed5796234a53beb71228198c7d1e678947.tar.gz linux-cf4197ed5796234a53beb71228198c7d1e678947.tar.bz2 linux-cf4197ed5796234a53beb71228198c7d1e678947.zip | |
drm/amdgpu/powerplay: Apply avfs cks-off voltages on VI
Instead of EVV cks-off voltages, avfs cks-off voltages can avoid
the overshoot voltages when switching sclk.
Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c | 6 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h b/drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h index 62f36ba2435b..c1a99dfe4913 100644 --- a/drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h +++ b/drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h @@ -386,6 +386,8 @@ typedef uint16_t PPSMC_Result; #define PPSMC_MSG_AgmResetPsm ((uint16_t) 0x403) #define PPSMC_MSG_ReadVftCell ((uint16_t) 0x404) +#define PPSMC_MSG_ApplyAvfsCksOffVoltage ((uint16_t) 0x415) + #define PPSMC_MSG_GFX_CU_PG_ENABLE ((uint16_t) 0x280) #define PPSMC_MSG_GFX_CU_PG_DISABLE ((uint16_t) 0x281) #define PPSMC_MSG_GetCurrPkgPwr ((uint16_t) 0x282) diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c index 872d3824337b..a1e0ac9ae248 100644 --- a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c +++ b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c @@ -1985,6 +1985,12 @@ int polaris10_thermal_avfs_enable(struct pp_hwmgr *hwmgr) smum_send_msg_to_smc(hwmgr, PPSMC_MSG_EnableAvfs); + /* Apply avfs cks-off voltages to avoid the overshoot + * when switching to the highest sclk frequency + */ + if (data->apply_avfs_cks_off_voltage) + smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ApplyAvfsCksOffVoltage); + return 0; } |