/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2012 ARM Ltd.
 */
#ifndef __ASM_HWCAP_H
#define __ASM_HWCAP_H

#include <uapi/asm/hwcap.h>
#include <asm/cpufeature.h>

#define COMPAT_HWCAP_SWP        (1 << 0)
#define COMPAT_HWCAP_HALF       (1 << 1)
#define COMPAT_HWCAP_THUMB      (1 << 2)
#define COMPAT_HWCAP_26BIT      (1 << 3)
#define COMPAT_HWCAP_FAST_MULT  (1 << 4)
#define COMPAT_HWCAP_FPA        (1 << 5)
#define COMPAT_HWCAP_VFP        (1 << 6)
#define COMPAT_HWCAP_EDSP       (1 << 7)
#define COMPAT_HWCAP_JAVA       (1 << 8)
#define COMPAT_HWCAP_IWMMXT     (1 << 9)
#define COMPAT_HWCAP_CRUNCH     (1 << 10) /* Obsolete */
#define COMPAT_HWCAP_THUMBEE    (1 << 11)
#define COMPAT_HWCAP_NEON       (1 << 12)
#define COMPAT_HWCAP_VFPv3      (1 << 13)
#define COMPAT_HWCAP_VFPV3D16   (1 << 14)
#define COMPAT_HWCAP_TLS        (1 << 15)
#define COMPAT_HWCAP_VFPv4      (1 << 16)
#define COMPAT_HWCAP_IDIVA      (1 << 17)
#define COMPAT_HWCAP_IDIVT      (1 << 18)
#define COMPAT_HWCAP_IDIV       (COMPAT_HWCAP_IDIVA|COMPAT_HWCAP_IDIVT)
#define COMPAT_HWCAP_VFPD32     (1 << 19)
#define COMPAT_HWCAP_LPAE       (1 << 20)
#define COMPAT_HWCAP_EVTSTRM    (1 << 21)
#define COMPAT_HWCAP_FPHP       (1 << 22)
#define COMPAT_HWCAP_ASIMDHP    (1 << 23)
#define COMPAT_HWCAP_ASIMDDP    (1 << 24)
#define COMPAT_HWCAP_ASIMDFHM   (1 << 25)
#define COMPAT_HWCAP_ASIMDBF16  (1 << 26)
#define COMPAT_HWCAP_I8MM       (1 << 27)

#define COMPAT_HWCAP2_AES       (1 << 0)
#define COMPAT_HWCAP2_PMULL     (1 << 1)
#define COMPAT_HWCAP2_SHA1      (1 << 2)
#define COMPAT_HWCAP2_SHA2      (1 << 3)
#define COMPAT_HWCAP2_CRC32     (1 << 4)
#define COMPAT_HWCAP2_SB        (1 << 5)
#define COMPAT_HWCAP2_SSBS      (1 << 6)

#ifndef __ASSEMBLER__
#include <linux/log2.h>

/*
 * For userspace we represent hwcaps as a collection of HWCAP{,2}_x bitfields
 * as described in uapi/asm/hwcap.h. For the kernel we represent hwcaps as
 * natural numbers (in a single range of size MAX_CPU_FEATURES) defined here
 * with prefix KERNEL_HWCAP_ mapped to their HWCAP{,2}_x counterpart.
 *
 * Hwcaps should be set and tested within the kernel via the
 * cpu_{set,have}_named_feature(feature) where feature is the unique suffix
 * of KERNEL_HWCAP_{feature}.
 */
#define __khwcap_feature(x)             const_ilog2(HWCAP_ ## x)
#define __khwcap2_feature(x)            (const_ilog2(HWCAP2_ ## x) + 64)
#define __khwcap3_feature(x)            (const_ilog2(HWCAP3_ ## x) + 128)

#include "asm/kernel-hwcap.h"

/*
 * This yields a mask that user programs can use to figure out what
 * instruction set this cpu supports.
 */
#define ELF_HWCAP               cpu_get_elf_hwcap()
#define ELF_HWCAP2              cpu_get_elf_hwcap2()
#define ELF_HWCAP3              cpu_get_elf_hwcap3()

#ifdef CONFIG_COMPAT
#define COMPAT_ELF_HWCAP        (compat_elf_hwcap)
#define COMPAT_ELF_HWCAP2       (compat_elf_hwcap2)
#define COMPAT_ELF_HWCAP3       (compat_elf_hwcap3)
extern unsigned int compat_elf_hwcap, compat_elf_hwcap2, compat_elf_hwcap3;
#endif

enum {
        CAP_HWCAP = 1,
#ifdef CONFIG_COMPAT
        CAP_COMPAT_HWCAP,
        CAP_COMPAT_HWCAP2,
#endif
};

#endif
#endif