drm/amd/powerplay: optimize the interface for mgpu fan boost enablement

Cover the implementation details from outside(of power). Also preparing
for expanding this to swSMU.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

@@ -2228,9 +2228,7 @@ static int amdgpu_device_enable_mgpu_fan_boost(void)
 		gpu_ins = &(mgpu_info.gpu_ins[i]);
 		adev = gpu_ins->adev;
 		if (!(adev->flags & AMD_IS_APU) &&
-		    !gpu_ins->mgpu_fan_enabled &&
-		    adev->powerplay.pp_funcs &&
-		    adev->powerplay.pp_funcs->enable_mgpu_fan_boost) {
+		    !gpu_ins->mgpu_fan_enabled) {
 			ret = amdgpu_dpm_enable_mgpu_fan_boost(adev);
 			if (ret)
 				break;

drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c

@@ -1216,3 +1216,16 @@ int amdgpu_dpm_allow_xgmi_power_down(struct amdgpu_device *adev, bool en)
 
 	return 0;
 }
+
+int amdgpu_dpm_enable_mgpu_fan_boost(struct amdgpu_device *adev)
+{
+	void *pp_handle = adev->powerplay.pp_handle;
+	const struct amd_pm_funcs *pp_funcs =
+			adev->powerplay.pp_funcs;
+	int ret = 0;
+
+	if (pp_funcs && pp_funcs->enable_mgpu_fan_boost)
+		ret = pp_funcs->enable_mgpu_fan_boost(pp_handle);
+
+	return ret;
+}

drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h

@@ -357,10 +357,6 @@ enum amdgpu_pcie_gen {
 		((adev)->powerplay.pp_funcs->odn_edit_dpm_table(\
 			(adev)->powerplay.pp_handle, type, parameter, size))
 
-#define amdgpu_dpm_enable_mgpu_fan_boost(adev) \
-		((adev)->powerplay.pp_funcs->enable_mgpu_fan_boost(\
-			(adev)->powerplay.pp_handle))
-
 #define amdgpu_dpm_get_ppfeature_status(adev, buf) \
 		((adev)->powerplay.pp_funcs->get_ppfeature_status(\
 			(adev)->powerplay.pp_handle, (buf)))
@@ -548,4 +544,6 @@ int amdgpu_dpm_set_df_cstate(struct amdgpu_device *adev,
 
 int amdgpu_dpm_allow_xgmi_power_down(struct amdgpu_device *adev, bool en);
 
+int amdgpu_dpm_enable_mgpu_fan_boost(struct amdgpu_device *adev);
+
 #endif