/*
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* Copyright (C) 2010-2012, 2014-2017 ARM Limited. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
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*
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* A copy of the licence is included with the program, and can also be obtained from Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "mali_kernel_utilization.h"
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#include "mali_osk.h"
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#include "mali_osk_mali.h"
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#include "mali_kernel_common.h"
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#include "mali_session.h"
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#include "mali_dvfs_policy.h"
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#include "mali_control_timer.h"
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static u64 period_start_time = 0;
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/** .KP : mali_control_timer */
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static _mali_osk_timer_t mali_control_timer;
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static mali_bool timer_running = MALI_FALSE;
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/**
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* period_of_notifying_mali_utilization_to_platform_dependent_part,
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* ms 为单位.
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*/
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static u32 mali_control_timeout = 20;
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void mali_control_timer_add(u32 timeout)/* 'timeout' : 以 ms 为单位. */
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{
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_mali_osk_timer_add(&mali_control_timer, _mali_osk_time_mstoticks(timeout));
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}
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void mali_control_timer_mod(u32 timeout_in_ms)
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{
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_mali_osk_timer_mod(&mali_control_timer, _mali_osk_time_mstoticks(timeout_in_ms));
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}
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static void mali_control_timer_callback(void *arg)
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{
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if (mali_utilization_enabled()) {
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struct mali_gpu_utilization_data *util_data = NULL;
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u64 time_period = 0;
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mali_bool need_add_timer = MALI_TRUE;
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/* Calculate gpu utilization */
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util_data = mali_utilization_calculate(&period_start_time, &time_period, &need_add_timer);
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if (util_data) {
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#if defined(CONFIG_MALI_DVFS)
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mali_dvfs_policy_realize(util_data, time_period);
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#else
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mali_utilization_platform_realize(util_data);
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#endif
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if (MALI_TRUE == timer_running)
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if (MALI_TRUE == need_add_timer) {
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mali_control_timer_mod(mali_control_timeout);
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}
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}
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}
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}
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/* Init a timer (for now it is used for GPU utilization and dvfs) */
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_mali_osk_errcode_t mali_control_timer_init(void)
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{
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_mali_osk_device_data data;
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if (_MALI_OSK_ERR_OK == _mali_osk_device_data_get(&data)) {
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/* Use device specific settings (if defined) */
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if (0 != data.control_interval) {
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mali_control_timeout = data.control_interval;
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MALI_DEBUG_PRINT(2, ("Mali GPU Timer: %u\n", mali_control_timeout));
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}
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}
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_mali_osk_timer_init(&mali_control_timer, mali_control_timer_callback);
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return _MALI_OSK_ERR_OK;
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}
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void mali_control_timer_term(void)
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{
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_mali_osk_timer_del(&mali_control_timer);
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timer_running = MALI_FALSE;
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}
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mali_bool mali_control_timer_resume(u64 time_now)
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{
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mali_utilization_data_assert_locked();
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if (timer_running != MALI_TRUE) {
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timer_running = MALI_TRUE;
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period_start_time = time_now;
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mali_utilization_reset();
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return MALI_TRUE;
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}
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return MALI_FALSE;
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}
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void mali_control_timer_pause(void)
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{
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mali_utilization_data_assert_locked();
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if (timer_running == MALI_TRUE) {
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timer_running = MALI_FALSE;
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}
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}
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void mali_control_timer_suspend(mali_bool suspend)
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{
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mali_utilization_data_lock();
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if (timer_running == MALI_TRUE) {
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timer_running = MALI_FALSE;
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mali_utilization_data_unlock();
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if (suspend == MALI_TRUE) {
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_mali_osk_timer_del(&mali_control_timer);
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mali_utilization_reset();
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}
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} else {
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mali_utilization_data_unlock();
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}
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}
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