cpu_ops.c

/*
 * CPU kernel entry/exit control
 *
 * Copyright (C) 2013 ARM Ltd.
 *
 * 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.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

#include <asm/cpu_ops.h>
#include <linux/string.h>

extern const struct cpu_operations smp_spin_table_ops;
extern const struct cpu_operations cpu_psci_ops;

const struct cpu_operations *cpu_ops[NR_CPUS];

static const struct cpu_operations *supported_cpu_ops[] __initconst = {
#ifdef CONFIG_SMP
	&smp_spin_table_ops,
	&cpu_psci_ops,
#endif
	NULL,
};

const struct cpu_operations * __init cpu_get_ops(const char *name)
{
	const struct cpu_operations **ops = supported_cpu_ops;

	while (*ops) {
		if (!strcmp(name, (*ops)->name))
			return *ops;

		ops++;
	}

	return NULL;
}