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 /** .KP : mali_control_timer */
22 static _mali_osk_timer_t *mali_control_timer = NULL;
23 static mali_bool timer_running = MALI_FALSE;
26 * period_of_notifying_mali_utilization_to_platform_dependent_part,
29 static u32 mali_control_timeout = 20;
31 void mali_control_timer_add(u32 timeout)/* 'timeout' : 以 ms 为单位. */
33 _mali_osk_timer_add(mali_control_timer, _mali_osk_time_mstoticks(timeout));
36 void mali_control_timer_mod(u32 timeout_in_ms)
38 _mali_osk_timer_mod(mali_control_timer, _mali_osk_time_mstoticks(timeout_in_ms));
41 static void mali_control_timer_callback(void *arg)
43 if (mali_utilization_enabled()) {
44 struct mali_gpu_utilization_data *util_data = NULL;
47 /* Calculate gpu utilization */
48 util_data = mali_utilization_calculate(&period_start_time, &time_period);
51 #if defined(CONFIG_MALI_DVFS)
52 mali_dvfs_policy_realize(util_data, time_period);
54 mali_utilization_platform_realize(util_data);
58 if (MALI_TRUE == timer_running)
59 mali_control_timer_mod(mali_control_timeout);
63 /* Init a timer (for now it is used for GPU utilization and dvfs) */
64 _mali_osk_errcode_t mali_control_timer_init(void)
66 _mali_osk_device_data data;
68 if (_MALI_OSK_ERR_OK == _mali_osk_device_data_get(&data)) {
69 /* Use device specific settings (if defined) */
70 if (0 != data.control_interval) {
71 mali_control_timeout = data.control_interval;
72 MALI_DEBUG_PRINT(2, ("Mali GPU Timer: %u\n", mali_control_timeout));
76 mali_control_timer = _mali_osk_timer_init();
77 if (NULL == mali_control_timer) {
78 return _MALI_OSK_ERR_FAULT;
80 _mali_osk_timer_setcallback(mali_control_timer, mali_control_timer_callback, NULL);
82 return _MALI_OSK_ERR_OK;
85 void mali_control_timer_term(void)
87 if (NULL != mali_control_timer) {
88 _mali_osk_timer_del(mali_control_timer);
89 timer_running = MALI_FALSE;
90 _mali_osk_timer_term(mali_control_timer);
91 mali_control_timer = NULL;
95 mali_bool mali_control_timer_resume(u64 time_now)
97 if (timer_running != MALI_TRUE) {
98 timer_running = MALI_TRUE;
100 period_start_time = time_now;
102 mali_utilization_reset();
110 void mali_control_timer_suspend(mali_bool suspend)
112 mali_utilization_data_lock();
114 if (timer_running == MALI_TRUE) {
115 timer_running = MALI_FALSE;
117 mali_utilization_data_unlock();
119 if (suspend == MALI_TRUE) {
120 _mali_osk_timer_del(mali_control_timer);
121 mali_utilization_reset();
124 mali_utilization_data_unlock();