forked from xuos/xiuos
96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file clock_irq_handler.c
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* @brief clock interrupt handler
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* @version 3.0
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* @author AIIT XUOS Lab
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* @date 2023.08.25
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*/
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/*************************************************
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File name: clock_irq_handler.c
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Description: clock interrupt handler
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Others:
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History:
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1. Date: 2023-08-28
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Author: AIIT XUOS Lab
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Modification:
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1. first version
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*************************************************/
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#include "clock_common_op.h"
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#include "actracer.h"
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#include "assert.h"
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#include "multicores.h"
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#include "task.h"
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static struct TraceTag clock_driver_tag;
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static struct XiziClockDriver* p_clock_driver = NULL;
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bool clock_intr_handler_init(struct TraceTag* p_clock_driver_tag)
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{
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clock_driver_tag = *p_clock_driver_tag;
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p_clock_driver = AchieveResource(p_clock_driver_tag);
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return p_clock_driver != NULL;
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}
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void hw_current_tick(uintptr_t* tick)
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{
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if (p_clock_driver == NULL) {
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*tick = 0;
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return;
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}
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*tick = p_clock_driver->get_tick();
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}
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void hw_current_second(uintptr_t* second)
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{
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if (p_clock_driver == NULL) {
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*second = 0;
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return;
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}
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*second = p_clock_driver->get_second();
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}
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uint64_t global_tick = 0;
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int xizi_clock_handler(int irq, void* tf, void* arg)
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{
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/* handle clock interrupt using driver */
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if (p_clock_driver->is_timer_expired()) {
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p_clock_driver->clear_clock_intr();
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global_tick++;
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// handle current thread
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struct Thread* current_task = cur_cpu()->task;
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if (current_task) {
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current_task->remain_tick--;
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current_task->maxium_tick--;
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if (current_task->remain_tick == 0) {
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xizi_task_manager.task_yield_noschedule(current_task, false);
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}
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}
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// todo: cpu 0 will handle sleeping thread
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struct Thread* thread = NULL;
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DOUBLE_LIST_FOR_EACH_ENTRY(thread, &xizi_task_manager.task_sleep_list_head, node)
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{
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assert(thread->state == SLEEPING);
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thread->sleep_context.remain_ms--;
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if (thread->sleep_context.remain_ms <= 0) {
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xizi_task_manager.task_unblock(thread);
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break;
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}
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}
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}
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return 0;
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} |