[PATCH 2/2] drm/amd/powerplay: enable MGPU fan boost feature on Vega10

[Evan Quan]

For those SKUs which support this feature only.

Change-Id: I74de00204d93f951e04073e5c4c4ce9c0d34f662
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
 .../drm/amd/powerplay/hwmgr/vega10_hwmgr.c    |  1 +
 .../drm/amd/powerplay/hwmgr/vega10_thermal.c  | 37 +++++++++++++++++++
 .../drm/amd/powerplay/hwmgr/vega10_thermal.h  |  1 +
 3 files changed, 39 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index f0ba4254361b..1a4c6467a36d 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -5168,6 +5168,7 @@ static const struct pp_hwmgr_func vega10_hwmgr_funcs = {
 	.set_asic_baco_state = vega10_baco_set_state,
 	.get_ppfeature_status = vega10_get_ppfeature_status,
 	.set_ppfeature_status = vega10_set_ppfeature_status,
+	.enable_mgpu_fan_boost = vega10_enable_mgpu_fan_boost,
 };
 
 int vega10_hwmgr_init(struct pp_hwmgr *hwmgr)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.c
index 3f807d6c95ce..ba8763daa380 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.c
@@ -556,6 +556,43 @@ int vega10_thermal_setup_fan_table(struct pp_hwmgr *hwmgr)
 	return ret;
 }
 
+int vega10_enable_mgpu_fan_boost(struct pp_hwmgr *hwmgr)
+{
+	struct vega10_hwmgr *data = hwmgr->backend;
+	PPTable_t *table = &(data->smc_state_table.pp_table);
+	int ret;
+
+	if (!data->smu_features[GNLD_FAN_CONTROL].supported)
+		return 0;
+
+	if (!hwmgr->thermal_controller.advanceFanControlParameters.
+			usMGpuThrottlingRPMLimit)
+		return 0;
+
+	table->FanThrottlingRpm = hwmgr->thermal_controller.
+			advanceFanControlParameters.usMGpuThrottlingRPMLimit;
+
+	ret = smum_smc_table_manager(hwmgr,
+				(uint8_t *)(&(data->smc_state_table.pp_table)),
+				PPTABLE, false);
+	if (ret) {
+		pr_info("Failed to update fan control table in pptable!");
+		return ret;
+	}
+
+	ret = vega10_disable_fan_control_feature(hwmgr);
+	if (ret) {
+		pr_info("Attempt to disable SMC fan control feature failed!");
+		return ret;
+	}
+
+	ret = vega10_enable_fan_control_feature(hwmgr);
+	if (ret)
+		pr_info("Attempt to enable SMC fan control feature failed!");
+
+	return ret;
+}
+
 /**
 * Start the fan control on the SMC.
 * @param    hwmgr  the address of the powerplay hardware manager.
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.h b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.h
index 21e7c4dfa2ca..4a0ede7c1f07 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.h
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.h
@@ -73,6 +73,7 @@ extern int vega10_thermal_disable_alert(struct pp_hwmgr *hwmgr);
 extern int vega10_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr);
 extern int vega10_start_thermal_controller(struct pp_hwmgr *hwmgr,
 				struct PP_TemperatureRange *range);
+extern int vega10_enable_mgpu_fan_boost(struct pp_hwmgr *hwmgr);
 
 
 #endif
-- 
2.20.1