kernel-ark/arch/hexagon/kernel/topology.c
Richard Kuo 43afdf5083 Hexagon: Add SMP support
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Signed-off-by: Linas Vepstas <linas@codeaurora.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-11-01 07:34:20 -07:00

53 lines
1.4 KiB
C

/*
* CPU topology for Hexagon
*
* Copyright (c) 2010-2011, Code Aurora Forum. 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 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include <linux/cpu.h>
#include <linux/cpumask.h>
#include <linux/init.h>
#include <linux/node.h>
#include <linux/nodemask.h>
#include <linux/percpu.h>
/* Swiped from MIPS. */
static DEFINE_PER_CPU(struct cpu, cpu_devices);
static int __init topology_init(void)
{
int i, ret;
for_each_present_cpu(i) {
/*
* register_cpu takes a per_cpu pointer and
* just points it at another per_cpu struct...
*/
ret = register_cpu(&per_cpu(cpu_devices, i), i);
if (ret)
printk(KERN_WARNING "topology_init: register_cpu %d "
"failed (%d)\n", i, ret);
}
return 0;
}
subsys_initcall(topology_init);