drm/amdgpu/powerplay: enable thermal interrupt task in eventmgr.

BugLink: http://bugs.launchpad.net/bugs/1546572

Add thermal handling to the event manager.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 2dfea9cd)
Signed-off-by: Alberto Milone <alberto.milone@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

drivers/gpu/drm/amd/powerplay/eventmgr/eventactionchains.c

@@ -33,6 +33,7 @@ static const pem_event_action *initialize_event[] = {
 	enable_clock_power_gatings_tasks,
 	get_2d_performance_state_tasks,
 	set_performance_state_tasks,
+	initialize_thermal_controller_tasks,
 	conditionally_force_3d_performance_state_tasks,
 	process_vbios_eventinfo_tasks,
 	broadcast_power_policy_tasks,

drivers/gpu/drm/amd/powerplay/eventmgr/eventinit.c

@@ -22,6 +22,8 @@
  */
 #include "eventmgr.h"
 #include "eventinit.h"
+#include "ppinterrupt.h"
+#include "hardwaremanager.h"
 
 void pem_init_feature_info(struct pp_eventmgr *eventmgr)
 {
@@ -145,12 +147,25 @@ void pem_init_feature_info(struct pp_eventmgr *eventmgr)
 	eventmgr->features[PP_Feature_ViPG].enabled = false;
 }
 
+static int thermal_interrupt_callback(void *private_data,
+				      unsigned src_id, const uint32_t *iv_entry)
+{
+	/* TO DO hanle PEM_Event_ThermalNotification (struct pp_eventmgr *)private_data*/
+	printk("current thermal is out of range \n");
+	return 0;
+}
+
 int pem_register_interrupts(struct pp_eventmgr *eventmgr)
 {
 	int result = 0;
+	struct pp_interrupt_registration_info info;
+
+	info.call_back = thermal_interrupt_callback;
+	info.context = eventmgr;
+
+	result = phm_register_thermal_interrupt(eventmgr->hwmgr, &info);
 
 	/* TODO:
-	 * 1. Register thermal events interrupt
 	 * 2. Register CTF event interrupt
 	 * 3. Register for vbios events interrupt
 	 * 4. Register External Throttle Interrupt

drivers/gpu/drm/amd/powerplay/eventmgr/eventsubchains.c

@@ -393,3 +393,13 @@ const pem_event_action create_new_user_performance_state_tasks[] = {
 	pem_task_create_user_performance_state,
 	NULL
 };
+
+const pem_event_action initialize_thermal_controller_tasks[] = {
+	pem_task_initialize_thermal_controller,
+	NULL
+};
+
+const pem_event_action uninitialize_thermal_controller_tasks[] = {
+	pem_task_uninitialize_thermal_controller,
+	NULL
+};

drivers/gpu/drm/amd/powerplay/eventmgr/eventsubchains.h

@@ -94,5 +94,6 @@ extern const pem_event_action enable_stutter_mode_tasks[];
 extern const pem_event_action enable_disable_bapm_tasks[];
 extern const pem_event_action reset_boot_state_tasks[];
 extern const pem_event_action create_new_user_performance_state_tasks[];
-
+extern const pem_event_action initialize_thermal_controller_tasks[];
+extern const pem_event_action uninitialize_thermal_controller_tasks[];
 #endif /* _EVENT_SUB_CHAINS_H_ */

drivers/gpu/drm/amd/powerplay/eventmgr/eventtasks.c

@@ -32,6 +32,9 @@
 #include "amd_powerplay.h"
 #include "psm.h"
 
+#define TEMP_RANGE_MIN (90 * 1000)
+#define TEMP_RANGE_MAX (120 * 1000)
+
 int pem_task_update_allowed_performance_levels(struct pp_eventmgr *eventmgr, struct pem_event_data *event_data)
 {
 
@@ -104,8 +107,6 @@ int pem_task_unregister_interrupts(struct pp_eventmgr *eventmgr, struct pem_even
 	return pem_unregister_interrupts(eventmgr);
 }
 
-
-
 int pem_task_get_boot_state_id(struct pp_eventmgr *eventmgr, struct pem_event_data *event_data)
 {
 	int result;
@@ -415,3 +416,16 @@ int pem_task_create_user_performance_state(struct pp_eventmgr *eventmgr, struct
 	return -1;
 }
 
+int pem_task_initialize_thermal_controller(struct pp_eventmgr *eventmgr, struct pem_event_data *event_data)
+{
+	struct PP_TemperatureRange range;
+	range.max = TEMP_RANGE_MAX;
+	range.min = TEMP_RANGE_MIN;
+
+	return phm_start_thermal_controller(eventmgr->hwmgr, &range);
+}
+
+int pem_task_uninitialize_thermal_controller(struct pp_eventmgr *eventmgr, struct pem_event_data *event_data)
+{
+	return phm_stop_thermal_controller(eventmgr->hwmgr);
+}
\ No newline at end of file

drivers/gpu/drm/amd/powerplay/eventmgr/eventtasks.h

@@ -81,5 +81,8 @@ int pem_task_conditionally_force_3d_performance_state(struct pp_eventmgr *eventm
 int pem_task_get_2D_performance_state_id(struct pp_eventmgr *eventmgr, struct pem_event_data *event_data);
 int pem_task_create_user_performance_state(struct pp_eventmgr *eventmgr, struct pem_event_data *event_data);
 int pem_task_update_allowed_performance_levels(struct pp_eventmgr *eventmgr, struct pem_event_data *event_data);
+/*thermal */
+int pem_task_initialize_thermal_controller(struct pp_eventmgr *eventmgr, struct pem_event_data *event_data);
+int pem_task_uninitialize_thermal_controller(struct pp_eventmgr *eventmgr, struct pem_event_data *event_data);
 
 #endif /* _EVENT_TASKS_H_ */