116 lines
3.6 KiB
C
Executable File
116 lines
3.6 KiB
C
Executable File
/*
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* @Author: zhangzheng 1358745329@qq.com
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* @Date: 2023-08-14 09:47:54
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* @LastEditors: zhangzheng 1358745329@qq.com
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* @LastEditTime: 2023-08-18 16:21:58
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* @FilePath: /mkrtos-real/mkrtos_knl/knl/thread_knl.c
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* @Description: 内核线程初始化
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*/
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#include "types.h"
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#include "init.h"
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#include "printk.h"
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#include "task.h"
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#include "thread.h"
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#include "factory.h"
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#include "globals.h"
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#include "arch.h"
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#include "map.h"
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#include "app.h"
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#include "mm_wrap.h"
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#include "thread_armv7m.h"
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static thread_t *knl_thread;
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static task_t knl_task;
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/**
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* 初始化内核线程
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* 初始化内核任务
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*/
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static void knl_init_1(void)
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{
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thread_t *cur_th = thread_get_current();
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thread_init(cur_th);
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task_init(&knl_task, &root_factory_get()->limit);
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thread_bind(cur_th, &knl_task.kobj);
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thread_ready(cur_th, FALSE);
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}
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INIT_STAGE1(knl_init_1);
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/**
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* 初始化init线程
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* 初始化用户态任务
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* 映射静态内核对象
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* 运行init进程
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*/
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static void knl_init_2(void)
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{
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thread_t *init_thread = thread_create(&root_factory_get()->limit);
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assert(init_thread);
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task_t *init_task = task_create(&root_factory_get()->limit);
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assert(init_task);
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app_info_t *app = app_info_get((void *)(KNL_TEXT + INIT_OFFSET));
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void *ram = mm_limit_alloc_align(&root_factory_get()->limit, app->i.ram_size, 8);
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if (!ram)
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{
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printk("申请init进程内存失败.\n");
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assert(ram);
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}
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void *sp_addr = (char *)ram + app->i.stack_offset - app->i.data_offset;
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void *sp_addr_top = (char *)sp_addr + app->i.stack_size;
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thread_bind(init_thread, &init_task->kobj);
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// thread_set_exc_regs(init_thread, KNL_TEXT + INIT_OFFSET);
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thread_user_pf_set(init_thread, (void *)(KNL_TEXT + INIT_OFFSET), sp_addr_top, ram);
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assert(obj_map_root(&init_thread->kobj, &init_task->obj_space, &root_factory_get()->limit, THREAD_PROT));
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assert(obj_map_root(&init_task->kobj, &init_task->obj_space, &root_factory_get()->limit, TASK_PROT));
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for (int i = FACTORY_PORT_START; i < FACTORY_PORT_END; i++)
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{
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kobject_t *kobj = global_get_kobj(i);
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if (kobj)
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{
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assert(obj_map_root(kobj, &init_task->obj_space, &root_factory_get()->limit, i));
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}
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}
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thread_ready(init_thread, FALSE);
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}
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INIT_STAGE1(knl_init_2);
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static void print_mkrtos_info(void)
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{
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const char *start_info[] = {
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" _____ ______ ___ __ ________ _________ ________ ________ \r\n",
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"|\\ _ \\ _ \\|\\ \\|\\ \\ |\\ __ \\|\\___ ___\\\\ __ \\|\\ ____\\ \r\n",
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"\\ \\ \\\\\\__\\ \\ \\ \\ \\/ /|\\ \\ \\|\\ \\|___ \\ \\_\\ \\ \\|\\ \\ \\ \\___|_ \r\n",
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" \\ \\ \\\\|__| \\ \\ \\ ___ \\ \\ _ _\\ \\ \\ \\ \\ \\ \\\\\\ \\ \\_____ \\ \r\n",
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" \\ \\ \\ \\ \\ \\ \\ \\\\ \\ \\ \\ \\\\ \\| \\ \\ \\ \\ \\ \\\\\\ \\|____|\\ \\ \r\n",
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" \\ \\__\\ \\ \\__\\ \\__\\\\ \\__\\ \\__\\\\ _\\ \\ \\__\\ \\ \\_______\\____\\_\\ \\ \r\n",
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" \\|__| \\|__|\\|__| \\|__|\\|__|\\|__| \\|__| \\|_______|\\_________\\\r\n",
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" \\|_________|\r\n",
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"Complie Time:" __DATE__ " " __TIME__ "\r\n",
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};
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for (umword_t i = 0; i < sizeof(start_info) / sizeof(void *); i++)
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{
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printk(start_info[i]);
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}
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}
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void start_kernel(void)
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{
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// 初始化系统时钟
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// 初始化串口
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// 初始化定时器
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sys_call_init();
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printk("mkrtos init done..\n");
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printk("mkrtos running..\n");
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print_mkrtos_info();
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sti();
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sys_startup();
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thread_sched();
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cli();
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while (1)
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;
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}
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