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/*
* Copyright (C) 2010-2012, 2014-2015 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained from Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "mali_kernel_utilization.h"
#include "mali_osk.h"
#include "mali_osk_mali.h"
#include "mali_kernel_common.h"
#include "mali_session.h"
#include "mali_dvfs_policy.h"
#include "mali_control_timer.h"
static u64 period_start_time = 0;
static _mali_osk_timer_t *mali_control_timer = NULL;
static mali_bool timer_running = MALI_FALSE;
static u32 mali_control_timeout = 1000;
void mali_control_timer_add(u32 timeout)
{
_mali_osk_timer_add(mali_control_timer, _mali_osk_time_mstoticks(timeout));
}
static void mali_control_timer_callback(void *arg)
{
if (mali_utilization_enabled()) {
struct mali_gpu_utilization_data *util_data = NULL;
u64 time_period = 0;
mali_bool need_add_timer = MALI_TRUE;
/* Calculate gpu utilization */
util_data = mali_utilization_calculate(&period_start_time, &time_period, &need_add_timer);
if (util_data) {
#if defined(CONFIG_MALI_DVFS)
mali_dvfs_policy_realize(util_data, time_period);
#else
mali_utilization_platform_realize(util_data);
#endif
if (MALI_TRUE == need_add_timer) {
mali_control_timer_add(mali_control_timeout);
}
}
}
}
/* Init a timer (for now it is used for GPU utilization and dvfs) */
_mali_osk_errcode_t mali_control_timer_init(void)
{
_mali_osk_device_data data;
if (_MALI_OSK_ERR_OK == _mali_osk_device_data_get(&data)) {
/* Use device specific settings (if defined) */
if (0 != data.control_interval) {
mali_control_timeout = data.control_interval;
MALI_DEBUG_PRINT(2, ("Mali GPU Timer: %u\n", mali_control_timeout));
}
}
mali_control_timer = _mali_osk_timer_init();
if (NULL == mali_control_timer) {
return _MALI_OSK_ERR_FAULT;
}
_mali_osk_timer_setcallback(mali_control_timer, mali_control_timer_callback, NULL);
return _MALI_OSK_ERR_OK;
}
void mali_control_timer_term(void)
{
if (NULL != mali_control_timer) {
_mali_osk_timer_del(mali_control_timer);
timer_running = MALI_FALSE;
_mali_osk_timer_term(mali_control_timer);
mali_control_timer = NULL;
}
}
mali_bool mali_control_timer_resume(u64 time_now)
{
mali_utilization_data_assert_locked();
if (timer_running != MALI_TRUE) {
timer_running = MALI_TRUE;
period_start_time = time_now;
mali_utilization_reset();
return MALI_TRUE;
}
return MALI_FALSE;
}
void mali_control_timer_pause(void)
{
mali_utilization_data_assert_locked();
if (timer_running == MALI_TRUE) {
timer_running = MALI_FALSE;
}
}
void mali_control_timer_suspend(mali_bool suspend)
{
mali_utilization_data_lock();
if (timer_running == MALI_TRUE) {
timer_running = MALI_FALSE;
mali_utilization_data_unlock();
if (suspend == MALI_TRUE) {
_mali_osk_timer_del(mali_control_timer);
mali_utilization_reset();
}
} else {
mali_utilization_data_unlock();
}
}
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