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软中断&定时器重构 (#223)

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* 软中断&定时器重构

Co-authored-by: houmkh<houjiaying@DragonOS.org>

* 修改timer的clock()

* 删除debug信息

---------

Co-authored-by: houmkh <1119644616@qq.com>
This commit is contained in:
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2023-04-02 17:09:33 +08:00
committed by GitHub
parent 6d345b7742
commit bacd691c9e
33 changed files with 896 additions and 672 deletions
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16
kernel/src/driver/timers/HPET/HPET.c
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@ -67,7 +67,7 @@ void HPET_handler(uint64_t number, uint64_t param, struct pt_regs *regs)
switch (param)
{
case 0: // 定时器0中断
timer_jiffies += HPET0_INTERVAL;
rs_update_timer_jiffies(HPET0_INTERVAL);
/*
// 将HEPT中断消息转发到ap:1处理器
@ -76,18 +76,18 @@ void HPET_handler(uint64_t number, uint64_t param, struct pt_regs *regs)
*/
// 若当前时间比定时任务的时间间隔大，则进入中断下半部
if (container_of(list_next(&timer_func_head.list), struct timer_func_list_t, list)->expire_jiffies <= timer_jiffies)
raise_softirq(TIMER_SIRQ);
if (rs_timer_get_first_expire() <= rs_clock())
rs_raise_softirq(TIMER_SIRQ);
// 当时间到了，或进程发生切换时，刷新帧缓冲区
if (timer_jiffies >= video_refresh_expire_jiffies || (video_last_refresh_pid != current_pcb->pid))
if (rs_clock() >= video_refresh_expire_jiffies || (video_last_refresh_pid != current_pcb->pid))
{
raise_softirq(VIDEO_REFRESH_SIRQ);
rs_raise_softirq(VIDEO_REFRESH_SIRQ);
// 超过130ms仍未刷新完成，则重新发起刷新(防止由于进程异常退出导致的屏幕无法刷新)
if (unlikely(timer_jiffies >= (video_refresh_expire_jiffies + (1 << 17))))
if (unlikely(rs_clock() >= (video_refresh_expire_jiffies + (1 << 17))))
{
video_refresh_expire_jiffies = timer_jiffies + (1 << 20);
clear_softirq_pending(VIDEO_REFRESH_SIRQ);
video_refresh_expire_jiffies = rs_clock() + (1 << 20);
rs_clear_softirq_pending(VIDEO_REFRESH_SIRQ);
}
}
break;