drm/amd/powerplay: add and export hwmgr interface to eventmgr to check hw states.

Interface between hwmgr and eventmgr.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
diff --git a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
index aedb1e4..5b5c94d 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
@@ -307,6 +307,11 @@
 	int (*uninitialize_thermal_controller)(struct pp_hwmgr *hwmgr);
 	int (*register_internal_thermal_interrupt)(struct pp_hwmgr *hwmgr,
 					const void *thermal_interrupt_info);
+	bool (*check_smc_update_required_for_display_configuration)(struct pp_hwmgr *hwmgr);
+	int (*check_states_equal)(struct pp_hwmgr *hwmgr,
+					const struct pp_hw_power_state *pstate1,
+					const struct pp_hw_power_state *pstate2,
+					bool *equal);
 };
 
 struct pp_table_func {