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smp-up.c

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2006, 07 by Ralf Baechle (ralf@linux-mips.org)
 *
 * Symmetric Uniprocessor (TM) Support
 */
#include <linux/kernel.h>
#include <linux/sched.h>

/*
 * Send inter-processor interrupt
 */
static void up_send_ipi_single(int cpu, unsigned int action)
{
      panic(KERN_ERR "%s called", __func__);
}

static inline void up_send_ipi_mask(const struct cpumask *mask,
                            unsigned int action)
{
      panic(KERN_ERR "%s called", __func__);
}

/*
 *  After we've done initial boot, this function is called to allow the
 *  board code to clean up state, if needed
 */
static void __cpuinit up_init_secondary(void)
{
}

static void __cpuinit up_smp_finish(void)
{
}

/* Hook for after all CPUs are online */
static void up_cpus_done(void)
{
}

/*
 * Firmware CPU startup hook
 */
static void __cpuinit up_boot_secondary(int cpu, struct task_struct *idle)
{
}

static void __init up_smp_setup(void)
{
}

static void __init up_prepare_cpus(unsigned int max_cpus)
{
}

#ifdef CONFIG_HOTPLUG_CPU
static int up_cpu_disable(void)
{
      return -ENOSYS;
}

static void up_cpu_die(unsigned int cpu)
{
      BUG();
}
#endif

struct plat_smp_ops up_smp_ops = {
      .send_ipi_single  = up_send_ipi_single,
      .send_ipi_mask          = up_send_ipi_mask,
      .init_secondary         = up_init_secondary,
      .smp_finish       = up_smp_finish,
      .cpus_done        = up_cpus_done,
      .boot_secondary         = up_boot_secondary,
      .smp_setup        = up_smp_setup,
      .prepare_cpus           = up_prepare_cpus,
#ifdef CONFIG_HOTPLUG_CPU
      .cpu_disable            = up_cpu_disable,
      .cpu_die          = up_cpu_die,
#endif
};

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