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/* 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
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