mirror of
https://github.com/drasko/codezero.git
synced 2026-01-14 03:43:15 +01:00
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
/*
|
|
* Initialise the system.
|
|
*
|
|
* Copyright (C) 2007 Bahadir Balban
|
|
*/
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <kdata.h>
|
|
#include <memory.h>
|
|
#include <mm/alloc_page.h>
|
|
#include <kmalloc/kmalloc.h>
|
|
#include <l4lib/arch/syscalls.h>
|
|
#include <task.h>
|
|
#include <shm.h>
|
|
|
|
void init_utcb(void)
|
|
{
|
|
struct task_ids ids;
|
|
void *utcb_page = alloc_page(1); /* Allocate a utcb page */
|
|
|
|
l4_getid(&ids);
|
|
l4_map(utcb_page, l4_get_utcb(), 1, MAP_USR_RW_FLAGS, ids.tid);
|
|
}
|
|
|
|
void init_mm(struct initdata *initdata)
|
|
{
|
|
/* Initialise the page and bank descriptors */
|
|
init_physmem(initdata, membank);
|
|
printf("%s: Initialised physmem.\n", __TASKNAME__);
|
|
|
|
/* Initialise the page allocator on first bank. */
|
|
init_page_allocator(membank[0].free, membank[0].end);
|
|
printf("%s: Initialised page allocator.\n", __TASKNAME__);
|
|
|
|
/* Initialise the zero page */
|
|
init_devzero();
|
|
printf("%s: Initialised devzero.\n", __TASKNAME__);
|
|
|
|
init_utcb();
|
|
printf("%s: Initialised own utcb.\n", __TASKNAME__);
|
|
|
|
/* Initialise the pager's memory allocator */
|
|
kmalloc_init();
|
|
printf("%s: Initialised kmalloc.\n", __TASKNAME__);
|
|
|
|
shm_init();
|
|
printf("%s: Initialised shm structures.\n", __TASKNAME__);
|
|
|
|
/* Give the kernel some memory to use for its allocators */
|
|
l4_kmem_grant(__pfn(alloc_page(__pfn(SZ_1MB))), __pfn(SZ_1MB));
|
|
}
|
|
|
|
void initialise(void)
|
|
{
|
|
request_initdata(&initdata);
|
|
|
|
init_mm(&initdata);
|
|
|
|
init_pm(&initdata);
|
|
printf("%s: Initialised the memory/process manager.\n", __TASKNAME__);
|
|
}
|
|
|