/*
* Ok, the machine is now initialized. None of the devices
* have been touched yet, but the CPU subsystem is up and
* running, and memory and process management works.
*
* Now we can finally start doing some real work..
*/
static void __init do_basic_setup(void)
{
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
*
* We don't want people to have to make incorrect
* assumptions about where in the task array this
* can be found.
*/
child_reaper = current;
#if defined(CONFIG_MTRR) /* Do this after SMP initialization */
/*
* We should probably create some architecture-dependent "fixup after
* everything is up" style function where this would belong better
* than in init/main.c..
*/
mtrr_init();
#endif
#ifdef CONFIG_SYSCTL
sysctl_init();
#endif
/*
* Ok, at this point all CPU's should be initialized, so
* we can start looking into devices..
*/
#if defined(CONFIG_ARCH_S390)
s390_init_machine_check();
#endif
#ifdef CONFIG_ACPI_INTERPRETER
acpi_init();
#endif
#ifdef CONFIG_PCI
pci_init();
#endif
#ifdef CONFIG_SBUS
sbus_init();
#endif
#if defined(CONFIG_PPC)
ppc_init();
#endif
#ifdef CONFIG_MCA
mca_init();
#endif
#ifdef CONFIG_ARCH_ACORN
ecard_init();
#endif
#ifdef CONFIG_ZORRO
zorro_init();
#endif
#ifdef CONFIG_DIO
dio_init();
#endif
#ifdef CONFIG_NUBUS
nubus_init();
#endif
#ifdef CONFIG_ISAPNP
isapnp_init();
#endif
#ifdef CONFIG_TC
tc_init();
#endif
/* Networking initialization needs a process context */
sock_init();
start_context_thread();
do_initcalls();
#ifdef CONFIG_IRDA
irda_proto_init();
irda_device_init(); /* Must be done after protocol initialization */
#endif
#ifdef CONFIG_PCMCIA
init_pcmcia_ds(); /* Do this last */
#endif
}
/*
* Ok, the machine is now initialized. None of the devices
* have been touched yet, but the CPU subsystem is up and
* running, and memory and process management works.
*
* Now we can finally start doing some real work..
*/
static void __init do_basic_setup(void)
{
#ifdef CONFIG_BLK_DEV_INITRD
int real_root_mountflags;
#endif
/*
* Tell the world that we're going to be the grim
* reaper of innocent orphaned children.
*
* We don't want people to have to make incorrect
* assumptions about where in the task array this
* can be found.
*/
child_reaper = current;
#if defined(CONFIG_MTRR) /* Do this after SMP initialization */
/*
* We should probably create some architecture-dependent "fixup after
* everything is up" style function where this would belong better
* than in init/main.c..
*/
mtrr_init();
#endif
#ifdef CONFIG_SYSCTL
sysctl_init();
#endif
/*
* Ok, at this point all CPU's should be initialized, so
* we can start looking into devices..
*/
#ifdef CONFIG_PCI
pci_init();
#endif
#ifdef CONFIG_SBUS
sbus_init();
#endif
#if defined(CONFIG_PPC)
powermac_init();
#endif
#ifdef CONFIG_MCA
mca_init();
#endif
#ifdef CONFIG_ARCH_ACORN
ecard_init();
#endif
#ifdef CONFIG_ZORRO
zorro_init();
#endif
#ifdef CONFIG_DIO
dio_init();
#endif
#ifdef CONFIG_TC
tc_init();
#endif
#ifdef CONFIG_PS2
ps2_dev_init(); /* PlayStation 2 devices */
#endif
/* Networking initialization needs a process context */
sock_init();
/* Launch bdflush from here, instead of the old syscall way. */
kernel_thread(bdflush, NULL, CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
/* Start the background pageout daemon. */
kswapd_setup();
kernel_thread(kswapd, NULL, CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
#if CONFIG_AP1000
/* Start the async paging daemon. */
{
extern int asyncd(void *);
kernel_thread(asyncd, NULL, CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
}
#endif
#ifdef CONFIG_BLK_DEV_INITRD
real_root_dev = ROOT_DEV;
real_root_mountflags = root_mountflags;
if (initrd_start && mount_initrd) root_mountflags &= ~MS_RDONLY;
else mount_initrd =0;
#endif
/* Set up devices .. */
device_setup();
/* .. executable formats .. */
binfmt_setup();
/* .. filesystems .. */
filesystem_setup();
/* Mount the root filesystem.. */
mount_root();
#ifdef CONFIG_UMSDOS_FS
{
/*
When mounting a umsdos fs as root, we detect
the pseudo_root (/linux) and initialise it here.
pseudo_root is defined in fs/umsdos/inode.c
*/
extern struct inode *pseudo_root;
if (pseudo_root != NULL){
current->fs->root = pseudo_root->i_sb->s_root;
current->fs->pwd = pseudo_root->i_sb->s_root;
}
}
#endif
#ifdef CONFIG_BLK_DEV_INITRD
root_mountflags = real_root_mountflags;
if (mount_initrd && ROOT_DEV != real_root_dev
&& MAJOR(ROOT_DEV) == RAMDISK_MAJOR && MINOR(ROOT_DEV) == 0) {
int error;
int i, pid;
pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD);
if (pid>0)
while (pid != wait(&i));
if (MAJOR(real_root_dev) != RAMDISK_MAJOR
|| MINOR(real_root_dev) != 0) {
error = change_root(real_root_dev,"/initrd");
if (error)
printk(KERN_ERR "Change root to /initrd: "
"error %d\n",error);
}
}
#endif
}
