예제 #1
0
static int __init kernel_init(void * unused)
{
	/*
	 * Wait until kthreadd is all set-up.
	 */
	wait_for_completion(&kthreadd_done);
	lock_kernel();

	/*
	 * init can allocate pages on any node
	 */
	set_mems_allowed(node_states[N_HIGH_MEMORY]);
	/*
	 * init can run on any cpu.
	 */
	set_cpus_allowed_ptr(current, cpu_all_mask);
	/*
	 * 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.
	 */
	init_pid_ns.child_reaper = current;

	cad_pid = task_pid(current);

	smp_prepare_cpus(setup_max_cpus);

	do_pre_smp_initcalls();
	start_boot_trace();

	smp_init();
	sched_init_smp();

	do_basic_setup();

	/*
	 * check if there is an early userspace init.  If yes, let it do all
	 * the work
	 */

	if (!ramdisk_execute_command)
		ramdisk_execute_command = "/init";

	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
		ramdisk_execute_command = NULL;
		prepare_namespace();
	}

	/*
	 * Ok, we have completed the initial bootup, and
	 * we're essentially up and running. Get rid of the
	 * initmem segments and start the user-mode stuff..
	 */

	init_post();
	return 0;
}
예제 #2
0
파일: main.c 프로젝트: varrunr/ml-cfs
static int __init kernel_init(void * unused)
{
#ifndef __LINSCHED__
	lock_kernel();
	/*
	 * init can run on any cpu.
	 */
	set_cpus_allowed(current, CPU_MASK_ALL);
	/*
	 * 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.
	 */
	init_pid_ns.child_reaper = current;

	__set_special_pids(1, 1);
	cad_pid = task_pid(current);

	smp_prepare_cpus(max_cpus);

	do_pre_smp_initcalls();

	smp_init();
#endif /* __LINSCHED__ */

	sched_init_smp();

#ifndef __LINSCHED__
	cpuset_init_smp();

	do_basic_setup();

	/*
	 * check if there is an early userspace init.  If yes, let it do all
	 * the work
	 */

	if (!ramdisk_execute_command)
		ramdisk_execute_command = "/init";

	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
		ramdisk_execute_command = NULL;
		prepare_namespace();
	}

	/*
	 * Ok, we have completed the initial bootup, and
	 * we're essentially up and running. Get rid of the
	 * initmem segments and start the user-mode stuff..
	 */
	init_post();
#endif /* __LINSCHED__ */

	return 0;
}
예제 #3
0
static int __init init(void * unused)
{
	lock_kernel();
	/*
	 * init can run on any cpu.
	 */
	set_cpus_allowed(current, CPU_MASK_ALL);
	/*
	 * 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;

	smp_prepare_cpus(max_cpus);

	do_pre_smp_initcalls();

	smp_init();
	sched_init_smp();

	cpuset_init_smp();

	/*
	 * Do this before initcalls, because some drivers want to access
	 * firmware files.
	 */
	populate_rootfs();

	do_basic_setup();

	/*
	 * check if there is an early userspace init.  If yes, let it do all
	 * the work
	 */

	if (!ramdisk_execute_command)
		ramdisk_execute_command = "/init";

	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
		ramdisk_execute_command = NULL;
		prepare_namespace();
	}

	/*
	 * Ok, we have completed the initial bootup, and
	 * we're essentially up and running. Get rid of the
	 * initmem segments and start the user-mode stuff..
	 */
	init_post();
	return 0;
}
예제 #4
0
static int __init kernel_init(void * unused)
{
	lock_kernel();

	/*
	 * init can allocate pages on any node
	 */
	set_mems_allowed(node_possible_map);
	/*
	 * init can run on any cpu.
	 */
	set_cpus_allowed_ptr(current, cpu_all_mask);
	/*
	 * 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.
	 */
	init_pid_ns.child_reaper = current;

	cad_pid = task_pid(current);

	smp_prepare_cpus(setup_max_cpus);

	do_pre_smp_initcalls();
	start_boot_trace();

	smp_init();
	sched_init_smp();

	do_basic_setup();

	/*
	 * check if there is an early userspace init.  If yes, let it do all
	 * the work
	 */

	if (!ramdisk_execute_command)
		ramdisk_execute_command = "/init";

	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
		ramdisk_execute_command = NULL;
		prepare_namespace();
	}
#ifdef CONFIG_PREEMPT_RT
	WARN_ON(irqs_disabled());
#endif

#define DEBUG_COUNT (defined(CONFIG_DEBUG_RT_MUTEXES) + defined(CONFIG_IRQSOFF_TRACER) + defined(CONFIG_PREEMPT_TRACER) + defined(CONFIG_STACK_TRACER) + defined(CONFIG_INTERRUPT_OFF_HIST) + defined(CONFIG_PREEMPT_OFF_HIST) + defined(CONFIG_WAKEUP_LATENCY_HIST) + defined(CONFIG_DEBUG_SLAB) + defined(CONFIG_DEBUG_PAGEALLOC) + defined(CONFIG_LOCKDEP) + (defined(CONFIG_FTRACE) - defined(CONFIG_FTRACE_MCOUNT_RECORD)))

#if DEBUG_COUNT > 0
	printk(KERN_ERR "*****************************************************************************\n");
	printk(KERN_ERR "*                                                                           *\n");
#if DEBUG_COUNT == 1
	printk(KERN_ERR "*  REMINDER, the following debugging option is turned on in your .config:   *\n");
#else
	printk(KERN_ERR "*  REMINDER, the following debugging options are turned on in your .config: *\n");
#endif
	printk(KERN_ERR "*                                                                           *\n");
#ifdef CONFIG_DEBUG_RT_MUTEXES
	printk(KERN_ERR "*        CONFIG_DEBUG_RT_MUTEXES                                            *\n");
#endif
#ifdef CONFIG_IRQSOFF_TRACER
	printk(KERN_ERR "*        CONFIG_IRQSOFF_TRACER                                              *\n");
#endif
#ifdef CONFIG_PREEMPT_TRACER
	printk(KERN_ERR "*        CONFIG_PREEMPT_TRACER                                              *\n");
#endif
#if defined(CONFIG_FTRACE) && !defined(CONFIG_FTRACE_MCOUNT_RECORD)
	printk(KERN_ERR "*        CONFIG_FTRACE                                                      *\n");
#endif
#ifdef CONFIG_INTERRUPT_OFF_HIST
	printk(KERN_ERR "*        CONFIG_INTERRUPT_OFF_HIST                                          *\n");
#endif
#ifdef CONFIG_PREEMPT_OFF_HIST
	printk(KERN_ERR "*        CONFIG_PREEMPT_OFF_HIST                                            *\n");
#endif
#ifdef CONFIG_WAKEUP_LATENCY_HIST
	printk(KERN_ERR "*        CONFIG_WAKEUP_LATENCY_HIST                                         *\n");
#endif
#ifdef CONFIG_DEBUG_SLAB
	printk(KERN_ERR "*        CONFIG_DEBUG_SLAB                                                  *\n");
#endif
#ifdef CONFIG_DEBUG_PAGEALLOC
	printk(KERN_ERR "*        CONFIG_DEBUG_PAGEALLOC                                             *\n");
#endif
#ifdef CONFIG_LOCKDEP
	printk(KERN_ERR "*        CONFIG_LOCKDEP                                                     *\n");
#endif
	printk(KERN_ERR "*                                                                           *\n");
#if DEBUG_COUNT == 1
	printk(KERN_ERR "*  it may increase runtime overhead and latencies.                          *\n");
#else
	printk(KERN_ERR "*  they may increase runtime overhead and latencies.                        *\n");
#endif
	printk(KERN_ERR "*                                                                           *\n");
	printk(KERN_ERR "*****************************************************************************\n");
#endif
	/*
	 * Ok, we have completed the initial bootup, and
	 * we're essentially up and running. Get rid of the
	 * initmem segments and start the user-mode stuff..
	 */

	init_post();
	return 0;
}
예제 #5
0
파일: main.c 프로젝트: quentinzil/wl500g
static int __init kernel_init(void * unused)
{
	/*
	 * Wait until kthreadd is all set-up.
	 */
	wait_for_completion(&kthreadd_done);
	lock_kernel();
	/*
	 * init can run on any cpu.
	 */
	set_cpus_allowed(current, CPU_MASK_ALL);
	/*
	 * 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.
	 */
	init_pid_ns.child_reaper = current;

	__set_special_pids(1, 1);
	cad_pid = task_pid(current);

	smp_prepare_cpus(max_cpus);

	do_pre_smp_initcalls();

	smp_init();
	sched_init_smp();

	cpuset_init_smp();

	do_basic_setup();

	/* Open the /dev/console on the rootfs, this should never fail */
	if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
		printk(KERN_WARNING "Warning: unable to open an initial console.\n");

	(void) sys_dup(0);
	(void) sys_dup(0);
	/*
	 * check if there is an early userspace init.  If yes, let it do all
	 * the work
	 */

	if (!ramdisk_execute_command)
		ramdisk_execute_command = "/init";

	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
		ramdisk_execute_command = NULL;
		prepare_namespace();
	}

	/*
	 * Ok, we have completed the initial bootup, and
	 * we're essentially up and running. Get rid of the
	 * initmem segments and start the user-mode stuff..
	 */
	init_post();
	return 0;
}
예제 #6
0
파일: main.c 프로젝트: kzlin129/tt-gpl
static int init(void * unused)
{
    int fdin, fdout, fderr;

    lock_kernel();
    /*
     * init can run on any cpu.
     */
    set_cpus_allowed(current, CPU_MASK_ALL);
    /*
     * 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;

    /* Sets up cpus_possible() */
    smp_prepare_cpus(max_cpus);

    do_pre_smp_initcalls();

    fixup_cpu_present_map();
    smp_init();
    sched_init_smp();

    cpuset_init_smp();

    /*
     * Do this before initcalls, because some drivers want to access
     * firmware files.
     */
    populate_rootfs();

    do_basic_setup();

    /*
     * check if there is an early userspace init.  If yes, let it do all
     * the work
     */
    if (sys_access((const char __user *) "/init", 0) == 0)
        execute_command = "/init";
    else
        prepare_namespace();

    /*
     * Ok, we have completed the initial bootup, and
     * we're essentially up and running. Get rid of the
     * initmem segments and start the user-mode stuff..
     */
    free_initmem();
    unlock_kernel();
    system_state = SYSTEM_RUNNING;
    numa_default_policy();

    fdin = sys_open((const char __user *) "/dev/console", O_RDWR, 0);
    if (fdin < 0) {
        printk(KERN_WARNING "Warning: unable to open /dev/console as initial console, res=%d.\n", fdin);
        fdin = sys_open((const char __user *) "/dev/null", O_RDWR, 0);
        if (fdin < 0) {
            panic("unable to open /dev/null as initial console, res=%d.\n", fdin);
        }
    }
    if (fdin != 0) {
        panic("initial console's stdin fd is not 0, but %d\n", fdin);
    }

    fdout = sys_dup(fdin);
    if (fdout < 0) {
        panic("can't dup initial console's stdout, res=%d\n", fdout);
    } else if (fdout != 1) {
        panic("initial console's stdout fd is not 1, but %d\n", fdout);
    }

    fderr = sys_dup(fdin);
    if (fderr < 0) {
        panic("can't dup initial console's stderr, res=%d\n", fderr);
    } else if (fderr != 2) {
        panic("initial console's stderr fd is not 2, but %d\n", fderr);
    }

    /*
     * We try each of these until one succeeds.
     *
     * The Bourne shell can be used instead of init if we are
     * trying to recover a really broken machine.
     */

    if (execute_command)
        run_init_process(execute_command);

    run_init_process("/sbin/init");
    run_init_process("/etc/init");
    run_init_process("/bin/init");
    run_init_process("/bin/sh");

    panic("No init found.  Try passing init= option to kernel.");
}
예제 #7
0
static int init(void * unused)
{
	lock_kernel();
	/*
	 * init can run on any cpu.
	 */
	set_cpus_allowed(current, CPU_MASK_ALL);
	/*
	 * 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;

	smp_prepare_cpus(max_cpus);

	do_pre_smp_initcalls();

	smp_init();
	sched_init_smp();

	cpuset_init_smp();

	/*
	 * Do this before initcalls, because some drivers want to access
	 * firmware files.
	 */
	populate_rootfs();

	do_basic_setup();

	/*
	 * check if there is an early userspace init.  If yes, let it do all
	 * the work
	 */

	if (!ramdisk_execute_command)
		ramdisk_execute_command = "/init";

	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
		ramdisk_execute_command = NULL;
		prepare_namespace();
	}

	/*
	 * Ok, we have completed the initial bootup, and
	 * we're essentially up and running. Get rid of the
	 * initmem segments and start the user-mode stuff..
	 */
	free_initmem();
	unlock_kernel();
	mark_rodata_ro();
	system_state = SYSTEM_RUNNING;
	numa_default_policy();

	if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
		printk(KERN_WARNING "Warning: unable to open an initial console.\n");

	(void) sys_dup(0);
	(void) sys_dup(0);

	if (ramdisk_execute_command) {
		run_init_process(ramdisk_execute_command);
		printk(KERN_WARNING "Failed to execute %s\n",
				ramdisk_execute_command);
	}

	/*
	 * We try each of these until one succeeds.
	 *
	 * The Bourne shell can be used instead of init if we are 
	 * trying to recover a really broken machine.
	 */
	if (execute_command) {
		run_init_process(execute_command);
		printk(KERN_WARNING "Failed to execute %s.  Attempting "
					"defaults...\n", execute_command);
	}
	run_init_process("/sbin/init");
	run_init_process("/etc/init");
	run_init_process("/bin/init");
	run_init_process("/bin/sh");

	panic("No init found.  Try passing init= option to kernel.");
}
예제 #8
0
static int ATTRIB_NORET init(void * unused)
{
#ifdef TARGET_OS2
   LX_ReschedWaitOn();
   while(kernel_flag.lock<=0)
    schedule();
#endif
   lock_kernel();
   /*
    * 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;

   /* Sets up cpus_possible() */
   smp_prepare_cpus(max_cpus);

   do_pre_smp_initcalls();

   smp_init();

   /*
    * Do this before initcalls, because some drivers want to access
    * firmware files.
    */
   populate_rootfs();

   do_basic_setup();
   /*
    * check if there is an early userspace init.  If yes, let it do all
    * the work
    */
   if (sys_access("/init", 0) == 0)
      execute_command = "/init";
   else
      prepare_namespace();

   /*
    * Ok, we have completed the initial bootup, and
    * we're essentially up and running. Get rid of the
    * initmem segments and start the user-mode stuff..
    */
   free_initmem();
   unlock_kernel();
   system_state = SYSTEM_RUNNING;
#ifdef TARGET_OS2
   lx_sysstate|=LXSYSSTATE_SYSTEM_RUNNING;
#endif

   if (sys_open("/dev/console", O_RDWR, 0) < 0)
      printk("Warning: unable to open an initial console.\n");


   (void) sys_dup(0);
   (void) sys_dup(0);
#ifdef TARGET_OS2
   LX_set_sysstate(LXSYSSTATE_KERNEL_BOOT_FINISHED,0);
#endif

   /*
    * We try each of these until one succeeds.
    *
    * The Bourne shell can be used instead of init if we are
    * trying to recover a really broken machine.
    */

   if (execute_command)
      run_init_process(execute_command);

   run_init_process("/sbin/init");
   run_init_process("/etc/init");
   run_init_process("/bin/init");
   run_init_process("/bin/sh");

   panic("No init found.  Try passing init= option to kernel.");
}
예제 #9
0
파일: main.c 프로젝트: mrtos/Logitech-Revue
static int init(void * unused)
{
    lock_kernel();
    /*
     * init can run on any cpu.
     */
    set_cpus_allowed(current, CPU_MASK_ALL);
    /*
     * 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;

    smp_prepare_cpus(max_cpus);

    init_hardirqs();

    do_pre_smp_initcalls();

    smp_init();
    sched_init_smp();

    cpuset_init_smp();

    /*
     * Do this before initcalls, because some drivers want to access
     * firmware files.
     */
    populate_rootfs();

    do_basic_setup();

    /*
     * check if there is an early userspace init.  If yes, let it do all
     * the work
     */

    if (!ramdisk_execute_command)
        ramdisk_execute_command = "/init";

    if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
        ramdisk_execute_command = NULL;
        prepare_namespace();
    }
#ifdef CONFIG_PREEMPT_RT
    WARN_ON(irqs_disabled());
#endif

#define DEBUG_COUNT (defined(CONFIG_DEBUG_RT_MUTEXES) + defined(CONFIG_DEBUG_PREEMPT) + defined(CONFIG_CRITICAL_PREEMPT_TIMING) + defined(CONFIG_CRITICAL_IRQSOFF_TIMING) + defined(CONFIG_LATENCY_TRACE) + defined(CONFIG_DEBUG_SLAB) + defined(CONFIG_DEBUG_PAGEALLOC) + defined(CONFIG_LOCKDEP))

#if DEBUG_COUNT > 0
    printk(KERN_ERR "*****************************************************************************\n");
    printk(KERN_ERR "*                                                                           *\n");
#if DEBUG_COUNT == 1
    printk(KERN_ERR "*  REMINDER, the following debugging option is turned on in your .config:   *\n");
#else
    printk(KERN_ERR "*  REMINDER, the following debugging options are turned on in your .config: *\n");
#endif
    printk(KERN_ERR "*                                                                           *\n");
#ifdef CONFIG_DEBUG_RT_MUTEXES
    printk(KERN_ERR "*        CONFIG_DEBUG_RT_MUTEXES                                             *\n");
#endif
#ifdef CONFIG_DEBUG_PREEMPT
    printk(KERN_ERR "*        CONFIG_DEBUG_PREEMPT                                               *\n");
#endif
#ifdef CONFIG_CRITICAL_PREEMPT_TIMING
    printk(KERN_ERR "*        CONFIG_CRITICAL_PREEMPT_TIMING                                     *\n");
#endif
#ifdef CONFIG_CRITICAL_IRQSOFF_TIMING
    printk(KERN_ERR "*        CONFIG_CRITICAL_IRQSOFF_TIMING                                     *\n");
#endif
#ifdef CONFIG_LATENCY_TRACE
    printk(KERN_ERR "*        CONFIG_LATENCY_TRACE                                               *\n");
#endif
#ifdef CONFIG_DEBUG_SLAB
    printk(KERN_ERR "*        CONFIG_DEBUG_SLAB                                                  *\n");
#endif
#ifdef CONFIG_DEBUG_PAGEALLOC
    printk(KERN_ERR "*        CONFIG_DEBUG_PAGEALLOC                                             *\n");
#endif
#ifdef CONFIG_LOCKDEP
    printk(KERN_ERR "*        CONFIG_LOCKDEP                                                     *\n");
#endif
    printk(KERN_ERR "*                                                                           *\n");
#if DEBUG_COUNT == 1
    printk(KERN_ERR "*  it may increase runtime overhead and latencies.                          *\n");
#else
    printk(KERN_ERR "*  they may increase runtime overhead and latencies.                        *\n");
#endif
    printk(KERN_ERR "*                                                                           *\n");
    printk(KERN_ERR "*****************************************************************************\n");
#endif
    /*
     * Ok, we have completed the initial bootup, and
     * we're essentially up and running. Get rid of the
     * initmem segments and start the user-mode stuff..
     */
    free_initmem();
    unlock_kernel();
    mark_rodata_ro();
    system_state = SYSTEM_RUNNING;
    numa_default_policy();

    if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
        printk(KERN_WARNING "Warning: unable to open an initial console.\n");

    (void) sys_dup(0);
    (void) sys_dup(0);

    if (ramdisk_execute_command) {
        run_init_process(ramdisk_execute_command);
        printk(KERN_WARNING "Failed to execute %s\n",
               ramdisk_execute_command);
    }
#ifdef CONFIG_PREEMPT_RT
    WARN_ON(irqs_disabled());
#endif

    /*
     * We try each of these until one succeeds.
     *
     * The Bourne shell can be used instead of init if we are
     * trying to recover a really broken machine.
     */
    if (execute_command) {
        run_init_process(execute_command);
        printk(KERN_WARNING "Failed to execute %s.  Attempting "
               "defaults...\n", execute_command);
    }
    run_init_process("/sbin/init");
    run_init_process("/etc/init");
    run_init_process("/bin/init");
    run_init_process("/bin/sh");

    panic("No init found.  Try passing init= option to kernel.");
}
예제 #10
0
파일: main.c 프로젝트: rcplay/snake-os
static int init(void * unused)
{

#ifdef CONFIG_STR8100_GNSD630
	__u32 data;

	/* 
	 * from original kernel image
	 * TODO: figure out what the commented out lines do
	 */

	/* 
	 * mode for gpio pins:
	 * 22 and 23: led mode
	 * 24: stays gpio. changes disk mode
	 */
	MISC_GPIOA_PIN_ENABLE_REG = 0x0;
	MISC_GPIOA_PIN_ENABLE_REG |= (0x3 << 22);

	
	/* 
	 * set some pins to input mode
	 * 13: device is connected to pc
	 * 0: reset button
	 */
	GPIOA_DIRECTION_REG = 0xffffdff0;

	/* 
	 * disk to standalone mode
	 */
	GPIOA_DATA_OUTPUT_REG = 0x010fffff;

	udelay(10);

	/*
	GPIOA_DATA_OUTPUT_REG |= 0x20000;
	GPIOA_DATA_OUTPUT_REG |= 0x20000000;
	*/

	/* set disk to device mode if connected to pc */
	HAL_GPIOA_READ_DATA_IN_STATUS(data);
	if (!(data & 0x00002000))
		GPIOA_DATA_OUTPUT_REG = 0x000fdfff;

	/*
	GPIOA_DATA_OUTPUT_REG |= 0x10000;
	*/
#endif
	lock_kernel();
	/*
	 * init can run on any cpu.
	 */
	set_cpus_allowed(current, CPU_MASK_ALL);
	/*
	 * 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;

	smp_prepare_cpus(max_cpus);

	do_pre_smp_initcalls();

	fixup_cpu_present_map();
	smp_init();
	sched_init_smp();

	cpuset_init_smp();

	/*
	 * Do this before initcalls, because some drivers want to access
	 * firmware files.
	 */
	populate_rootfs();

	do_basic_setup();

#ifdef CONFIG_STR8100_GNSD630
	/*
	GPIOA_DATA_OUTPUT_REG |= 0x20000;
	GPIOA_DATA_OUTPUT_REG |= 0x20000000;
	*/

	/* 
	 * setup gpio pins again. seems redundant
	 */
	MISC_GPIOA_PIN_ENABLE_REG = 0x0;
	MISC_GPIOA_PIN_ENABLE_REG |= (0x3 << 22);
#endif

	/*
	 * check if there is an early userspace init.  If yes, let it do all
	 * the work
	 */

	if (!ramdisk_execute_command)
		ramdisk_execute_command = "/init";

	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
		ramdisk_execute_command = NULL;
		prepare_namespace();
	}

	/*
	 * Ok, we have completed the initial bootup, and
	 * we're essentially up and running. Get rid of the
	 * initmem segments and start the user-mode stuff..
	 */
	free_initmem();
	unlock_kernel();
	mark_rodata_ro();
	system_state = SYSTEM_RUNNING;
	numa_default_policy();

	if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
		printk(KERN_WARNING "Warning: unable to open an initial console.\n");

	(void) sys_dup(0);
	(void) sys_dup(0);

	if (ramdisk_execute_command) {
		run_init_process(ramdisk_execute_command);
		printk(KERN_WARNING "Failed to execute %s\n",
				ramdisk_execute_command);
	}

	/*
	 * We try each of these until one succeeds.
	 *
	 * The Bourne shell can be used instead of init if we are 
	 * trying to recover a really broken machine.
	 */
	if (execute_command) {
		run_init_process(execute_command);
		printk(KERN_WARNING "Failed to execute %s.  Attempting "
					"defaults...\n", execute_command);
	}
	run_init_process("/sbin/init");
	run_init_process("/etc/init");
	run_init_process("/bin/init");
	run_init_process("/bin/sh");

	panic("No init found.  Try passing init= option to kernel.");
}
예제 #11
0
static int init(void * unused)
{
	lock_kernel();
	/*
	 * 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;

	/* Sets up cpus_possible() */
	smp_prepare_cpus(max_cpus);

	init_hardirqs();

	do_pre_smp_initcalls();

	fixup_cpu_present_map();
	smp_init();
	sched_init_smp();

	/*
	 * Do this before initcalls, because some drivers want to access
	 * firmware files.
	 */
	populate_rootfs();

	do_basic_setup();

	/*
	 * check if there is an early userspace init.  If yes, let it do all
	 * the work
	 */
	if (sys_access((const char __user *) "/init", 0) == 0)
		execute_command = "/init";
	else
		prepare_namespace();

	/*
	 * Ok, we have completed the initial bootup, and
	 * we're essentially up and running. Get rid of the
	 * initmem segments and start the user-mode stuff..
	 */
	free_initmem();
	unlock_kernel();
	system_state = SYSTEM_RUNNING;
	numa_default_policy();

	if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
		printk("Warning: unable to open an initial console.\n");

	(void) sys_dup(0);
	(void) sys_dup(0);
	
	/*
	 * We try each of these until one succeeds.
	 *
	 * The Bourne shell can be used instead of init if we are 
	 * trying to recover a really broken machine.
	 */
#ifdef CONFIG_KFI_BOOT_TIMING
	to_userspace();
#endif

	if (execute_command)
		run_init_process(execute_command);

	run_init_process("/sbin/init");
	run_init_process("/etc/init");
	run_init_process("/bin/init");
	run_init_process("/bin/sh");

	panic("No init found.  Try passing init= option to kernel.");
}
예제 #12
0
파일: main.c 프로젝트: millken/zhuxianB30
static int __init kernel_init(void * unused)
{
	lock_kernel();

	/*
	 * init can allocate pages on any node
	 */
	set_mems_allowed(node_possible_map);

#ifdef 	CONFIG_SYS_HAS_CONTROL_CPU
	/*
	 * init can run on cpu0 only .
	 */
	set_cpus_allowed_ptr(current, cpumask_of(0));
#else
	/*
	 * init can run on any cpu .
	 */
	set_cpus_allowed_ptr(current, cpu_all_mask);
#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.
	 */
	init_pid_ns.child_reaper = current;

	cad_pid = task_pid(current);

	smp_prepare_cpus(setup_max_cpus);

	do_pre_smp_initcalls();
	start_boot_trace();

	smp_init();
	sched_init_smp();

#ifdef 	CONFIG_SYS_HAS_CONTROL_CPU
	/* HeJianjun modified for bug 148, 
	 * we run linux local processes on only cpu0, other cpu's are just for running dapp */
	set_cpus_allowed_ptr(current, cpumask_of(0));
#endif

	do_basic_setup();

	/*
	 * check if there is an early userspace init.  If yes, let it do all
	 * the work
	 */

	if (!ramdisk_execute_command)
		ramdisk_execute_command = "/init";

	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
		ramdisk_execute_command = NULL;
		prepare_namespace();
	}

	/*
	 * Ok, we have completed the initial bootup, and
	 * we're essentially up and running. Get rid of the
	 * initmem segments and start the user-mode stuff..
	 */

	init_post();
	return 0;
}