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Code Issues Releases Wiki Activity

改用int250作为系统调用

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This commit is contained in:
fslongjin
2022-04-12 11:54:44 +08:00
parent 011246281a
commit 2d7b2b7048
15 changed files with 236 additions and 104 deletions
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24
kernel/sched/sched.c
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@ -10,6 +10,7 @@ struct process_control_block *sched_cfs_dequeue()
{
if (list_empty(&sched_cfs_ready_queue.proc_queue.list))
{
kdebug("list empty");
return &initial_proc_union.pcb;
}
@ -17,6 +18,7 @@ struct process_control_block *sched_cfs_dequeue()
list_del(&proc->list);
--sched_cfs_ready_queue.count;
kdebug("dequeued");
return proc;
}
@ -30,7 +32,7 @@ void sched_cfs_enqueue(struct process_control_block *pcb)
struct process_control_block *proc = container_of(list_next(&sched_cfs_ready_queue.proc_queue.list), struct process_control_block, list);
if (proc == &initial_proc_union.pcb)
return;
if (!(list_empty(&sched_cfs_ready_queue.proc_queue.list)))
if ((list_empty(&sched_cfs_ready_queue.proc_queue.list)) == 0)
{
while (proc->virtual_runtime < pcb->virtual_runtime)
{
@ -39,6 +41,7 @@ void sched_cfs_enqueue(struct process_control_block *pcb)
}
list_append(&proc->list, &pcb->list);
++sched_cfs_ready_queue.count;
kdebug("enqueued");
}
/**
@ -57,7 +60,7 @@ void sched_cfs()
if (current_pcb->state = PROC_RUNNING) // 本次切换由于时间片到期引发，则再次加入就绪队列，否则交由其它功能模块进行管理
sched_cfs_enqueue(current_pcb);
if (!sched_cfs_ready_queue.cpu_exec_proc_jiffies)
if (sched_cfs_ready_queue.cpu_exec_proc_jiffies <= 0)
{
switch (proc->priority)
{
@ -67,7 +70,6 @@ void sched_cfs()
break;
case 2:
default:
sched_cfs_ready_queue.cpu_exec_proc_jiffies = (4 / sched_cfs_ready_queue.count) << 2;
break;
}
@ -77,24 +79,26 @@ void sched_cfs()
}
else // 不进行切换
{
kdebug("not switch.");
sched_cfs_enqueue(current_pcb);
// kdebug("not switch.");
sched_cfs_enqueue(proc);
if (!sched_cfs_ready_queue.cpu_exec_proc_jiffies)
if (sched_cfs_ready_queue.cpu_exec_proc_jiffies <= 0)
{
switch (proc->priority)
{
case 0:
case 1:
sched_cfs_ready_queue.cpu_exec_proc_jiffies = 4 / sched_cfs_ready_queue.cpu_exec_proc_jiffies;
sched_cfs_ready_queue.cpu_exec_proc_jiffies = 4 / sched_cfs_ready_queue.count;
//sched_cfs_ready_queue.cpu_exec_proc_jiffies = 5;
break;
case 2:
default:
sched_cfs_ready_queue.cpu_exec_proc_jiffies = (4 / sched_cfs_ready_queue.cpu_exec_proc_jiffies) << 2;
//sched_cfs_ready_queue.cpu_exec_proc_jiffies = 5;
sched_cfs_ready_queue.cpu_exec_proc_jiffies = (4 / sched_cfs_ready_queue.count) << 2;
break;
}
}
kdebug("hhhh");
}
}
@ -107,6 +111,6 @@ void sched_init()
memset(&sched_cfs_ready_queue, 0, sizeof(struct sched_queue_t));
list_init(&sched_cfs_ready_queue.proc_queue.list);
sched_cfs_ready_queue.count = 1; // 因为存在IDLE进程，因此为1
sched_cfs_ready_queue.cpu_exec_proc_jiffies = 10;
sched_cfs_ready_queue.cpu_exec_proc_jiffies = 15;
sched_cfs_ready_queue.proc_queue.virtual_runtime = 0x7fffffffffffffff;
}