2 * Copyright (C) 2010-2012, 2014 ARM Limited. All rights reserved.
4 * This program is free software and is provided to you under the terms of the GNU General Public License version 2
5 * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
7 * A copy of the licence is included with the program, and can also be obtained from Free Software
8 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
11 #include "mali_kernel_utilization.h"
13 #include "mali_osk_mali.h"
14 #include "mali_kernel_common.h"
15 #include "mali_session.h"
16 #include "mali_dvfs_policy.h"
17 #include "mali_control_timer.h"
19 static u64 period_start_time = 0;
21 static _mali_osk_timer_t *mali_control_timer = NULL; // .KP : mali_control_timer
22 static mali_bool timer_running = MALI_FALSE;
24 static u32 mali_control_timeout = 50;
26 void mali_control_timer_add(u32 timeout) // 'timeout' : 以 ms 为单位.
28 _mali_osk_timer_add(mali_control_timer, _mali_osk_time_mstoticks(timeout));
31 void mali_control_timer_mod(u32 timeout_in_ms)
33 _mali_osk_timer_mod(mali_control_timer, _mali_osk_time_mstoticks(timeout_in_ms));
36 static void mali_control_timer_callback(void *arg) // .KP : mali_control_timer_callback
38 if (mali_utilization_enabled()) {
39 struct mali_gpu_utilization_data *util_data = NULL;
42 /* Calculate gpu utilization */
43 util_data = mali_utilization_calculate(&period_start_time, &time_period);
46 #if defined(CONFIG_MALI_DVFS)
47 mali_dvfs_policy_realize(util_data, time_period);
49 mali_utilization_platform_realize(util_data);
53 if (MALI_TRUE == timer_running) { // .CP :
54 // mali_control_timer_add(mali_control_timeout);
55 mali_control_timer_mod(mali_control_timeout);
60 /* Init a timer (for now it is used for GPU utilization and dvfs) */
61 _mali_osk_errcode_t mali_control_timer_init(void)
63 _mali_osk_device_data data;
65 if (_MALI_OSK_ERR_OK == _mali_osk_device_data_get(&data)) {
66 /* Use device specific settings (if defined) */
67 if (0 != data.control_interval) {
68 mali_control_timeout = data.control_interval;
69 MALI_DEBUG_PRINT(2, ("Mali GPU Timer: %u\n", mali_control_timeout));
73 mali_control_timer = _mali_osk_timer_init();
74 if (NULL == mali_control_timer) {
75 return _MALI_OSK_ERR_FAULT;
77 _mali_osk_timer_setcallback(mali_control_timer, mali_control_timer_callback, NULL);
79 return _MALI_OSK_ERR_OK;
82 void mali_control_timer_term(void)
84 if (NULL != mali_control_timer) {
85 _mali_osk_timer_del(mali_control_timer);
86 timer_running = MALI_FALSE;
87 _mali_osk_timer_term(mali_control_timer);
88 mali_control_timer = NULL;
92 mali_bool mali_control_timer_resume(u64 time_now)
94 if (timer_running != MALI_TRUE) {
95 timer_running = MALI_TRUE;
97 period_start_time = time_now;
99 mali_utilization_reset();
107 void mali_control_timer_suspend(mali_bool suspend)
109 mali_utilization_data_lock();
111 if (timer_running == MALI_TRUE) {
112 timer_running = MALI_FALSE;
114 mali_utilization_data_unlock();
116 if (suspend == MALI_TRUE) {
117 _mali_osk_timer_del(mali_control_timer);
118 mali_utilization_reset();
121 mali_utilization_data_unlock();