arm64: enable generic CPU feature modalias matching for this architecture

	select DCACHE_WORD_ACCESS

	select GENERIC_CLOCKEVENTS

	select GENERIC_CLOCKEVENTS_BROADCAST if SMP

	select GENERIC_CPU_AUTOPROBE

	select GENERIC_IOMAP

	select GENERIC_IRQ_PROBE

	select GENERIC_IRQ_SHOW

/*

 * Copyright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>

 *

 * 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.

 */

#ifndef __ASM_CPUFEATURE_H

#define __ASM_CPUFEATURE_H

#include <asm/hwcap.h>

/*

 * In the arm64 world (as in the ARM world), elf_hwcap is used both internally

 * in the kernel and for user space to keep track of which optional features

 * are supported by the current system. So let's map feature 'x' to HWCAP_x.

 * Note that HWCAP_x constants are bit fields so we need to take the log.

 */

#define MAX_CPU_FEATURES	(8 * sizeof(elf_hwcap))

#define cpu_feature(x)		ilog2(HWCAP_ ## x)

static inline bool cpu_have_feature(unsigned int num)

{

	return elf_hwcap & (1UL << num);

}

#endif