1 files changed, 355 insertions, 64 deletions

diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index 9d2290044708..abbb658bdc1e 100644
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -37,6 +37,12 @@
 			return -EINVAL;					\
 	} while (0)
 
+#define PP_CHECK_HW(hwmgr)						\
+	do {								\
+		if ((hwmgr) == NULL || (hwmgr)->hwmgr_func == NULL)	\
+			return -EINVAL;					\
+	} while (0)
+
 static int pp_early_init(void *handle)
 {
 	return 0;
@@ -54,22 +60,29 @@ static int pp_sw_init(void *handle)
 	pp_handle = (struct pp_instance *)handle;
 	hwmgr = pp_handle->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->pptable_func == NULL ||
-	    hwmgr->hwmgr_func == NULL ||
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->pptable_func == NULL ||
 	    hwmgr->pptable_func->pptable_init == NULL ||
 	    hwmgr->hwmgr_func->backend_init == NULL)
 		return -EINVAL;
 
 	ret = hwmgr->pptable_func->pptable_init(hwmgr);
+	if (ret)
+		goto err;
 
-	if (ret == 0)
-		ret = hwmgr->hwmgr_func->backend_init(hwmgr);
-
+	ret = hwmgr->hwmgr_func->backend_init(hwmgr);
 	if (ret)
-		printk("amdgpu: powerplay initialization failed\n");
-	else
-		printk("amdgpu: powerplay initialized\n");
+		goto err1;
+
+	pr_info("amdgpu: powerplay initialized\n");
 
+	return 0;
+err1:
+	if (hwmgr->pptable_func->pptable_fini)
+		hwmgr->pptable_func->pptable_fini(hwmgr);
+err:
+	pr_err("amdgpu: powerplay initialization failed\n");
 	return ret;
 }
 
@@ -85,10 +98,14 @@ static int pp_sw_fini(void *handle)
 	pp_handle = (struct pp_instance *)handle;
 	hwmgr = pp_handle->hwmgr;
 
-	if (hwmgr != NULL || hwmgr->hwmgr_func != NULL ||
-	    hwmgr->hwmgr_func->backend_fini != NULL)
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->backend_fini != NULL)
 		ret = hwmgr->hwmgr_func->backend_fini(hwmgr);
 
+	if (hwmgr->pptable_func->pptable_fini)
+		hwmgr->pptable_func->pptable_fini(hwmgr);
+
 	return ret;
 }
 
@@ -159,7 +176,7 @@ static int pp_hw_fini(void *handle)
 
 static bool pp_is_idle(void *handle)
 {
-	return 0;
+	return false;
 }
 
 static int pp_wait_for_idle(void *handle)
@@ -172,21 +189,117 @@ static int pp_sw_reset(void *handle)
 	return 0;
 }
 
-static void pp_print_status(void *handle)
-{
-
-}
 
 static int pp_set_clockgating_state(void *handle,
 				    enum amd_clockgating_state state)
 {
+	struct pp_hwmgr  *hwmgr;
+	uint32_t msg_id, pp_state;
+
+	if (handle == NULL)
+		return -EINVAL;
+
+	hwmgr = ((struct pp_instance *)handle)->hwmgr;
+
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->update_clock_gatings == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
+
+	if (state == AMD_CG_STATE_UNGATE)
+		pp_state = 0;
+	else
+		pp_state = PP_STATE_CG | PP_STATE_LS;
+
+	/* Enable/disable GFX blocks clock gating through SMU */
+	msg_id = PP_CG_MSG_ID(PP_GROUP_GFX,
+			PP_BLOCK_GFX_CG,
+			PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+			pp_state);
+	hwmgr->hwmgr_func->update_clock_gatings(hwmgr, &msg_id);
+	msg_id = PP_CG_MSG_ID(PP_GROUP_GFX,
+			PP_BLOCK_GFX_3D,
+			PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+			pp_state);
+	hwmgr->hwmgr_func->update_clock_gatings(hwmgr, &msg_id);
+	msg_id = PP_CG_MSG_ID(PP_GROUP_GFX,
+			PP_BLOCK_GFX_RLC,
+			PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+			pp_state);
+	hwmgr->hwmgr_func->update_clock_gatings(hwmgr, &msg_id);
+	msg_id = PP_CG_MSG_ID(PP_GROUP_GFX,
+			PP_BLOCK_GFX_CP,
+			PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+			pp_state);
+	hwmgr->hwmgr_func->update_clock_gatings(hwmgr, &msg_id);
+	msg_id = PP_CG_MSG_ID(PP_GROUP_GFX,
+			PP_BLOCK_GFX_MG,
+			PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+			pp_state);
+	hwmgr->hwmgr_func->update_clock_gatings(hwmgr, &msg_id);
+
+	/* Enable/disable System blocks clock gating through SMU */
+	msg_id = PP_CG_MSG_ID(PP_GROUP_SYS,
+			PP_BLOCK_SYS_BIF,
+			PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+			pp_state);
+	hwmgr->hwmgr_func->update_clock_gatings(hwmgr, &msg_id);
+	msg_id = PP_CG_MSG_ID(PP_GROUP_SYS,
+			PP_BLOCK_SYS_BIF,
+			PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+			pp_state);
+	hwmgr->hwmgr_func->update_clock_gatings(hwmgr, &msg_id);
+	msg_id = PP_CG_MSG_ID(PP_GROUP_SYS,
+			PP_BLOCK_SYS_MC,
+			PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+			pp_state);
+	hwmgr->hwmgr_func->update_clock_gatings(hwmgr, &msg_id);
+	msg_id = PP_CG_MSG_ID(PP_GROUP_SYS,
+			PP_BLOCK_SYS_ROM,
+			PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+			pp_state);
+	hwmgr->hwmgr_func->update_clock_gatings(hwmgr, &msg_id);
+	msg_id = PP_CG_MSG_ID(PP_GROUP_SYS,
+			PP_BLOCK_SYS_DRM,
+			PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+			pp_state);
+	hwmgr->hwmgr_func->update_clock_gatings(hwmgr, &msg_id);
+	msg_id = PP_CG_MSG_ID(PP_GROUP_SYS,
+			PP_BLOCK_SYS_HDP,
+			PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+			pp_state);
+	hwmgr->hwmgr_func->update_clock_gatings(hwmgr, &msg_id);
+	msg_id = PP_CG_MSG_ID(PP_GROUP_SYS,
+			PP_BLOCK_SYS_SDMA,
+			PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+			pp_state);
+	hwmgr->hwmgr_func->update_clock_gatings(hwmgr, &msg_id);
+
 	return 0;
 }
 
 static int pp_set_powergating_state(void *handle,
 				    enum amd_powergating_state state)
 {
-	return 0;
+	struct pp_hwmgr  *hwmgr;
+
+	if (handle == NULL)
+		return -EINVAL;
+
+	hwmgr = ((struct pp_instance *)handle)->hwmgr;
+
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->enable_per_cu_power_gating == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
+
+	/* Enable/disable GFX per cu powergating through SMU */
+	return hwmgr->hwmgr_func->enable_per_cu_power_gating(hwmgr,
+			state == AMD_PG_STATE_GATE ? true : false);
 }
 
 static int pp_suspend(void *handle)
@@ -236,6 +349,7 @@ static int pp_resume(void *handle)
 }
 
 const struct amd_ip_funcs pp_ip_funcs = {
+	.name = "powerplay",
 	.early_init = pp_early_init,
 	.late_init = NULL,
 	.sw_init = pp_sw_init,
@@ -247,7 +361,6 @@ const struct amd_ip_funcs pp_ip_funcs = {
 	.is_idle = pp_is_idle,
 	.wait_for_idle = pp_wait_for_idle,
 	.soft_reset = pp_sw_reset,
-	.print_status = pp_print_status,
 	.set_clockgating_state = pp_set_clockgating_state,
 	.set_powergating_state = pp_set_powergating_state,
 };
@@ -275,9 +388,12 @@ static int pp_dpm_force_performance_level(void *handle,
 
 	hwmgr = pp_handle->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-	    hwmgr->hwmgr_func->force_dpm_level == NULL)
-		return -EINVAL;
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->force_dpm_level == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
 
 	hwmgr->hwmgr_func->force_dpm_level(hwmgr, level);
 
@@ -309,9 +425,12 @@ static int pp_dpm_get_sclk(void *handle, bool low)
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-	    hwmgr->hwmgr_func->get_sclk == NULL)
-		return -EINVAL;
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->get_sclk == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
 
 	return hwmgr->hwmgr_func->get_sclk(hwmgr, low);
 }
@@ -325,9 +444,12 @@ static int pp_dpm_get_mclk(void *handle, bool low)
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-	    hwmgr->hwmgr_func->get_mclk == NULL)
-		return -EINVAL;
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->get_mclk == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
 
 	return hwmgr->hwmgr_func->get_mclk(hwmgr, low);
 }
@@ -341,9 +463,12 @@ static int pp_dpm_powergate_vce(void *handle, bool gate)
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-	    hwmgr->hwmgr_func->powergate_vce == NULL)
-		return -EINVAL;
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->powergate_vce == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
 
 	return hwmgr->hwmgr_func->powergate_vce(hwmgr, gate);
 }
@@ -357,9 +482,12 @@ static int pp_dpm_powergate_uvd(void *handle, bool gate)
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-	    hwmgr->hwmgr_func->powergate_uvd == NULL)
-		return -EINVAL;
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->powergate_uvd == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
 
 	return hwmgr->hwmgr_func->powergate_uvd(hwmgr, gate);
 }
@@ -408,6 +536,10 @@ int pp_dpm_dispatch_tasks(void *handle, enum amd_pp_event event_id, void *input,
 	case AMD_PP_EVENT_COMPLETE_INIT:
 		ret = pem_handle_event(pp_handle->eventmgr, event_id, &data);
 		break;
+	case AMD_PP_EVENT_READJUST_POWER_STATE:
+		pp_handle->hwmgr->current_ps = pp_handle->hwmgr->boot_ps;
+		ret = pem_handle_event(pp_handle->eventmgr, event_id, &data);
+		break;
 	default:
 		break;
 	}
@@ -455,10 +587,14 @@ pp_debugfs_print_current_performance_level(void *handle,
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-	  hwmgr->hwmgr_func->print_current_perforce_level == NULL)
+	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL)
 		return;
 
+	if (hwmgr->hwmgr_func->print_current_perforce_level == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return;
+	}
+
 	hwmgr->hwmgr_func->print_current_perforce_level(hwmgr, m);
 }
 
@@ -471,9 +607,12 @@ static int pp_dpm_set_fan_control_mode(void *handle, uint32_t mode)
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-	  hwmgr->hwmgr_func->set_fan_control_mode == NULL)
-		return -EINVAL;
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->set_fan_control_mode == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
 
 	return hwmgr->hwmgr_func->set_fan_control_mode(hwmgr, mode);
 }
@@ -487,9 +626,12 @@ static int pp_dpm_get_fan_control_mode(void *handle)
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-	  hwmgr->hwmgr_func->get_fan_control_mode == NULL)
-		return -EINVAL;
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->get_fan_control_mode == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
 
 	return hwmgr->hwmgr_func->get_fan_control_mode(hwmgr);
 }
@@ -503,9 +645,12 @@ static int pp_dpm_set_fan_speed_percent(void *handle, uint32_t percent)
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-	  hwmgr->hwmgr_func->set_fan_speed_percent == NULL)
-		return -EINVAL;
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->set_fan_speed_percent == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
 
 	return hwmgr->hwmgr_func->set_fan_speed_percent(hwmgr, percent);
 }
@@ -519,9 +664,12 @@ static int pp_dpm_get_fan_speed_percent(void *handle, uint32_t *speed)
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-	  hwmgr->hwmgr_func->get_fan_speed_percent == NULL)
-		return -EINVAL;
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->get_fan_speed_percent == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
 
 	return hwmgr->hwmgr_func->get_fan_speed_percent(hwmgr, speed);
 }
@@ -535,9 +683,12 @@ static int pp_dpm_get_temperature(void *handle)
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-	  hwmgr->hwmgr_func->get_temperature == NULL)
-		return -EINVAL;
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->get_temperature == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
 
 	return hwmgr->hwmgr_func->get_temperature(hwmgr);
 }
@@ -591,11 +742,14 @@ static int pp_dpm_get_pp_table(void *handle, char **table)
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-		hwmgr->hwmgr_func->get_pp_table == NULL)
+	PP_CHECK_HW(hwmgr);
+
+	if (!hwmgr->soft_pp_table)
 		return -EINVAL;
 
-	return hwmgr->hwmgr_func->get_pp_table(hwmgr, table);
+	*table = (char *)hwmgr->soft_pp_table;
+
+	return hwmgr->soft_pp_table_size;
 }
 
 static int pp_dpm_set_pp_table(void *handle, const char *buf, size_t size)
@@ -607,15 +761,29 @@ static int pp_dpm_set_pp_table(void *handle, const char *buf, size_t size)
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-		hwmgr->hwmgr_func->set_pp_table == NULL)
-		return -EINVAL;
+	PP_CHECK_HW(hwmgr);
+
+	if (!hwmgr->hardcode_pp_table) {
+		hwmgr->hardcode_pp_table =
+				kzalloc(hwmgr->soft_pp_table_size, GFP_KERNEL);
+
+		if (!hwmgr->hardcode_pp_table)
+			return -ENOMEM;
+
+		/* to avoid powerplay crash when hardcode pptable is empty */
+		memcpy(hwmgr->hardcode_pp_table, hwmgr->soft_pp_table,
+				hwmgr->soft_pp_table_size);
+	}
+
+	memcpy(hwmgr->hardcode_pp_table, buf, size);
+
+	hwmgr->soft_pp_table = hwmgr->hardcode_pp_table;
 
-	return hwmgr->hwmgr_func->set_pp_table(hwmgr, buf, size);
+	return amd_powerplay_reset(handle);
 }
 
 static int pp_dpm_force_clock_level(void *handle,
-		enum pp_clock_type type, int level)
+		enum pp_clock_type type, uint32_t mask)
 {
 	struct pp_hwmgr *hwmgr;
 
@@ -624,11 +792,14 @@ static int pp_dpm_force_clock_level(void *handle,
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-			hwmgr->hwmgr_func->force_clock_level == NULL)
-		return -EINVAL;
+	PP_CHECK_HW(hwmgr);
 
-	return hwmgr->hwmgr_func->force_clock_level(hwmgr, type, level);
+	if (hwmgr->hwmgr_func->force_clock_level == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
+
+	return hwmgr->hwmgr_func->force_clock_level(hwmgr, type, mask);
 }
 
 static int pp_dpm_print_clock_levels(void *handle,
@@ -641,13 +812,91 @@ static int pp_dpm_print_clock_levels(void *handle,
 
 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
 
-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
-			hwmgr->hwmgr_func->print_clock_levels == NULL)
-		return -EINVAL;
+	PP_CHECK_HW(hwmgr);
 
+	if (hwmgr->hwmgr_func->print_clock_levels == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
 	return hwmgr->hwmgr_func->print_clock_levels(hwmgr, type, buf);
 }
 
+static int pp_dpm_get_sclk_od(void *handle)
+{
+	struct pp_hwmgr *hwmgr;
+
+	if (!handle)
+		return -EINVAL;
+
+	hwmgr = ((struct pp_instance *)handle)->hwmgr;
+
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->get_sclk_od == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
+
+	return hwmgr->hwmgr_func->get_sclk_od(hwmgr);
+}
+
+static int pp_dpm_set_sclk_od(void *handle, uint32_t value)
+{
+	struct pp_hwmgr *hwmgr;
+
+	if (!handle)
+		return -EINVAL;
+
+	hwmgr = ((struct pp_instance *)handle)->hwmgr;
+
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->set_sclk_od == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
+
+	return hwmgr->hwmgr_func->set_sclk_od(hwmgr, value);
+}
+
+static int pp_dpm_get_mclk_od(void *handle)
+{
+	struct pp_hwmgr *hwmgr;
+
+	if (!handle)
+		return -EINVAL;
+
+	hwmgr = ((struct pp_instance *)handle)->hwmgr;
+
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->get_mclk_od == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
+
+	return hwmgr->hwmgr_func->get_mclk_od(hwmgr);
+}
+
+static int pp_dpm_set_mclk_od(void *handle, uint32_t value)
+{
+	struct pp_hwmgr *hwmgr;
+
+	if (!handle)
+		return -EINVAL;
+
+	hwmgr = ((struct pp_instance *)handle)->hwmgr;
+
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->set_mclk_od == NULL) {
+		printk(KERN_INFO "%s was not implemented.\n", __func__);
+		return 0;
+	}
+
+	return hwmgr->hwmgr_func->set_mclk_od(hwmgr, value);
+}
+
 const struct amd_powerplay_funcs pp_dpm_funcs = {
 	.get_temperature = pp_dpm_get_temperature,
 	.load_firmware = pp_dpm_load_fw,
@@ -670,6 +919,10 @@ const struct amd_powerplay_funcs pp_dpm_funcs = {
 	.set_pp_table = pp_dpm_set_pp_table,
 	.force_clock_level = pp_dpm_force_clock_level,
 	.print_clock_levels = pp_dpm_print_clock_levels,
+	.get_sclk_od = pp_dpm_get_sclk_od,
+	.set_sclk_od = pp_dpm_set_sclk_od,
+	.get_mclk_od = pp_dpm_get_mclk_od,
+	.set_mclk_od = pp_dpm_set_mclk_od,
 };
 
 static int amd_pp_instance_init(struct amd_pp_init *pp_init,
@@ -751,6 +1004,44 @@ int amd_powerplay_fini(void *handle)
 	return 0;
 }
 
+int amd_powerplay_reset(void *handle)
+{
+	struct pp_instance *instance = (struct pp_instance *)handle;
+	struct pp_eventmgr *eventmgr;
+	struct pem_event_data event_data = { {0} };
+	int ret;
+
+	if (instance == NULL)
+		return -EINVAL;
+
+	eventmgr = instance->eventmgr;
+	if (!eventmgr || !eventmgr->pp_eventmgr_fini)
+		return -EINVAL;
+
+	eventmgr->pp_eventmgr_fini(eventmgr);
+
+	ret = pp_sw_fini(handle);
+	if (ret)
+		return ret;
+
+	kfree(instance->hwmgr->ps);
+
+	ret = pp_sw_init(handle);
+	if (ret)
+		return ret;
+
+	hw_init_power_state_table(instance->hwmgr);
+
+	if (eventmgr == NULL || eventmgr->pp_eventmgr_init == NULL)
+		return -EINVAL;
+
+	ret = eventmgr->pp_eventmgr_init(eventmgr);
+	if (ret)
+		return ret;
+
+	return pem_handle_event(eventmgr, AMD_PP_EVENT_COMPLETE_INIT, &event_data);
+}
+
 /* export this function to DAL */
 
 int amd_powerplay_display_configuration_change(void *handle,