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authorKenneth Feng <kenneth.feng@amd.com>2018-12-06 11:56:14 +0800
committerAlex Deucher <alexander.deucher@amd.com>2018-12-10 15:28:40 -0500
commitcf4197ed5796234a53beb71228198c7d1e678947 (patch)
treef844b92f49122a276b94d38b6dbab0bac7b08f33 /drivers
parentd55d8be0747c96db28a1d08fc24d22ccd9b448ac (diff)
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
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h2
-rw-r--r--drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c6
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;
}

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