drm/amdgpu/pm: implement the SMU_MSG_EnableGfxImu function

GC v11_0_1 asic needs to issue the EnableGfxImu message after start IMU.
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -107,6 +107,20 @@ int amdgpu_dpm_set_powergating_by_smu(struct amdgpu_device *adev, uint32_t block
 	return ret;
 }
 
+int amdgpu_dpm_set_gfx_power_up_by_imu(struct amdgpu_device *adev)
+{
+	struct smu_context *smu = adev->powerplay.pp_handle;
+	int ret = -EOPNOTSUPP;
+
+	mutex_lock(&adev->pm.mutex);
+	ret = smu_set_gfx_power_up_by_imu(smu);
+	mutex_unlock(&adev->pm.mutex);
+
+	msleep(10);
+
+	return ret;
+}
+
 int amdgpu_dpm_baco_enter(struct amdgpu_device *adev)
 {
 	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;

drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h

@@ -386,6 +386,8 @@ int amdgpu_dpm_mode1_reset(struct amdgpu_device *adev);
 int amdgpu_dpm_set_mp1_state(struct amdgpu_device *adev,
 			     enum pp_mp1_state mp1_state);
 
+int amdgpu_dpm_set_gfx_power_up_by_imu(struct amdgpu_device *adev);
+
 int amdgpu_dpm_baco_exit(struct amdgpu_device *adev);
 
 int amdgpu_dpm_baco_enter(struct amdgpu_device *adev);

drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c

@@ -134,6 +134,14 @@ int smu_get_dpm_freq_range(struct smu_context *smu,
 	return ret;
 }
 
+int smu_set_gfx_power_up_by_imu(struct smu_context *smu)
+{
+	if (!smu->ppt_funcs && !smu->ppt_funcs->set_gfx_power_up_by_imu)
+		return -EOPNOTSUPP;
+
+	return smu->ppt_funcs->set_gfx_power_up_by_imu(smu);
+}
+
 static u32 smu_get_mclk(void *handle, bool low)
 {
 	struct smu_context *smu = handle;
@@ -2467,7 +2475,6 @@ static int smu_set_power_profile_mode(void *handle,
 	return smu_bump_power_profile_mode(smu, param, param_size);
 }
 
-
 static int smu_get_fan_control_mode(void *handle, u32 *fan_mode)
 {
 	struct smu_context *smu = handle;

drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h

@@ -697,6 +697,11 @@ struct pptable_funcs {
 	 */
 	int (*dpm_set_jpeg_enable)(struct smu_context *smu, bool enable);
 
+	/**
+	 * @set_gfx_power_up_by_imu: Enable GFX engine with IMU
+	 */
+	int (*set_gfx_power_up_by_imu)(struct smu_context *smu);
+
 	/**
 	 * @read_sensor: Read data from a sensor.
 	 * &sensor: Sensor to read data from.
@@ -1438,6 +1443,8 @@ int smu_get_dpm_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
 int smu_set_soft_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
 			    uint32_t min, uint32_t max);
 
+int smu_set_gfx_power_up_by_imu(struct smu_context *smu);
+
 int smu_set_ac_dc(struct smu_context *smu);
 
 int smu_allow_xgmi_power_down(struct smu_context *smu, bool en);

drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h

@@ -292,6 +292,8 @@ int smu_v13_0_baco_enter(struct smu_context *smu);
 
 int smu_v13_0_baco_exit(struct smu_context *smu);
 
+int smu_v13_0_set_gfx_power_up_by_imu(struct smu_context *smu);
+
 int smu_v13_0_od_edit_dpm_table(struct smu_context *smu,
 				enum PP_OD_DPM_TABLE_COMMAND type,
 				long input[],

drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c

@@ -2297,6 +2297,16 @@ int smu_v13_0_baco_exit(struct smu_context *smu)
 					SMU_BACO_STATE_EXIT);
 }
 
+int smu_v13_0_set_gfx_power_up_by_imu(struct smu_context *smu)
+{
+	uint16_t index;
+
+	index = smu_cmn_to_asic_specific_index(smu, CMN2ASIC_MAPPING_MSG,
+					       SMU_MSG_EnableGfxImu);
+
+	return smu_cmn_send_msg_without_waiting(smu, index, 0);
+}
+
 int smu_v13_0_od_edit_dpm_table(struct smu_context *smu,
 				enum PP_OD_DPM_TABLE_COMMAND type,
 				long input[], uint32_t size)

drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_4_ppt.c

@@ -1030,6 +1030,7 @@ static const struct pptable_funcs smu_v13_0_4_ppt_funcs = {
 	.force_clk_levels = smu_v13_0_4_force_clk_levels,
 	.set_performance_level = smu_v13_0_4_set_performance_level,
 	.set_fine_grain_gfx_freq_parameters = smu_v13_0_4_set_fine_grain_gfx_freq_parameters,
+	.set_gfx_power_up_by_imu = smu_v13_0_set_gfx_power_up_by_imu,
 };
 
 void smu_v13_0_4_set_ppt_funcs(struct smu_context *smu)