[deliverable/linux.git] / arch / arm / mach-shmobile / platsmp.c

/*
 * SMP support for R-Mobile / SH-Mobile
 *
 * Copyright (C) 2010  Magnus Damm
 * Copyright (C) 2011  Paul Mundt
 *
 * Based on vexpress, Copyright (C) 2002 ARM Ltd, All Rights Reserved
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include <linux/init.h>
#include <linux/smp.h>
#include <asm/hardware/gic.h>

void __init shmobile_smp_init_cpus(unsigned int ncores)
{
	unsigned int i;

	if (ncores > nr_cpu_ids) {
		pr_warn("SMP: %u cores greater than maximum (%u), clipping\n",
			ncores, nr_cpu_ids);
		ncores = nr_cpu_ids;
	}

	for (i = 0; i < ncores; i++)
		set_cpu_possible(i, true);

	set_smp_cross_call(gic_raise_softirq);
}
Commit	Line	Data
1c51ed4f MD	1	/*
	2	* SMP support for R-Mobile / SH-Mobile
	3	*
	4	* Copyright (C) 2010 Magnus Damm
c413521e	5	* Copyright (C) 2011 Paul Mundt
1c51ed4f MD	6	*
	7	* Based on vexpress, Copyright (C) 2002 ARM Ltd, All Rights Reserved
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License version 2 as
	11	* published by the Free Software Foundation.
	12	*/
	13	#include <linux/init.h>
1c51ed4f	14	#include <linux/smp.h>
0f7b332f	15	#include <asm/hardware/gic.h>
1c51ed4f	16
a62580e5	17	void __init shmobile_smp_init_cpus(unsigned int ncores)
1c51ed4f	18	{
1c51ed4f MD	19	unsigned int i;
1c51ed4f MD	20
a06f916b RK	21	if (ncores > nr_cpu_ids) {
	22	pr_warn("SMP: %u cores greater than maximum (%u), clipping\n",
	23	ncores, nr_cpu_ids);
	24	ncores = nr_cpu_ids;
	25	}
	26
1c51ed4f MD	27	for (i = 0; i < ncores; i++)
1c51ed4f MD	28	set_cpu_possible(i, true);
0f7b332f RK	29
0f7b332f RK	30	set_smp_cross_call(gic_raise_softirq);
1c51ed4f	31	}