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@xxxxxxx>
---
drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h | 2 ++
drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c | 9 +++++++++
2 files changed, 11 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h b/drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h
index 62f36ba..c1a99df 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 94898b2..6012dbf 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
@@ -1988,6 +1988,7 @@ static int polaris10_program_mem_timing_parameters(struct pp_hwmgr *hwmgr)
int polaris10_thermal_avfs_enable(struct pp_hwmgr *hwmgr)
{
struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
+ struct amdgpu_device *adev = (struct amdgpu_device *)hwmgr->adev;
if (!hwmgr->avfs_supported)
return 0;
@@ -1997,6 +1998,14 @@ int polaris10_thermal_avfs_enable(struct pp_hwmgr *hwmgr)
smum_send_msg_to_smc(hwmgr, PPSMC_MSG_EnableAvfs);
+ /* P30 case for applying Avfs cks-off voltages to avoid the overshoot
+ * when switching to the highest sclk frequency
+ */
+ if ((adev->pdev->device == 0x67df) &&
+ ((adev->pdev->revision == 0xe1) ||
+ (adev->pdev->revision == 0xf7)))
+ smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ApplyAvfsCksOffVoltage);
+
return 0;
}
--
2.7.4
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