Viewing file:  hwcap.h (4.92 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* 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)
#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_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)
#ifndef __ASSEMBLY__
#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 KERNEL_HWCAP_FP __khwcap_feature(FP)
#define KERNEL_HWCAP_ASIMD __khwcap_feature(ASIMD)
#define KERNEL_HWCAP_EVTSTRM __khwcap_feature(EVTSTRM)
#define KERNEL_HWCAP_AES __khwcap_feature(AES)
#define KERNEL_HWCAP_PMULL __khwcap_feature(PMULL)
#define KERNEL_HWCAP_SHA1 __khwcap_feature(SHA1)
#define KERNEL_HWCAP_SHA2 __khwcap_feature(SHA2)
#define KERNEL_HWCAP_CRC32 __khwcap_feature(CRC32)
#define KERNEL_HWCAP_ATOMICS __khwcap_feature(ATOMICS)
#define KERNEL_HWCAP_FPHP __khwcap_feature(FPHP)
#define KERNEL_HWCAP_ASIMDHP __khwcap_feature(ASIMDHP)
#define KERNEL_HWCAP_CPUID __khwcap_feature(CPUID)
#define KERNEL_HWCAP_ASIMDRDM __khwcap_feature(ASIMDRDM)
#define KERNEL_HWCAP_JSCVT __khwcap_feature(JSCVT)
#define KERNEL_HWCAP_FCMA __khwcap_feature(FCMA)
#define KERNEL_HWCAP_LRCPC __khwcap_feature(LRCPC)
#define KERNEL_HWCAP_DCPOP __khwcap_feature(DCPOP)
#define KERNEL_HWCAP_SHA3 __khwcap_feature(SHA3)
#define KERNEL_HWCAP_SM3 __khwcap_feature(SM3)
#define KERNEL_HWCAP_SM4 __khwcap_feature(SM4)
#define KERNEL_HWCAP_ASIMDDP __khwcap_feature(ASIMDDP)
#define KERNEL_HWCAP_SHA512 __khwcap_feature(SHA512)
#define KERNEL_HWCAP_SVE __khwcap_feature(SVE)
#define KERNEL_HWCAP_ASIMDFHM __khwcap_feature(ASIMDFHM)
#define KERNEL_HWCAP_DIT __khwcap_feature(DIT)
#define KERNEL_HWCAP_USCAT __khwcap_feature(USCAT)
#define KERNEL_HWCAP_ILRCPC __khwcap_feature(ILRCPC)
#define KERNEL_HWCAP_FLAGM __khwcap_feature(FLAGM)
#define KERNEL_HWCAP_SSBS __khwcap_feature(SSBS)
#define KERNEL_HWCAP_SB __khwcap_feature(SB)
#define KERNEL_HWCAP_PACA __khwcap_feature(PACA)
#define KERNEL_HWCAP_PACG __khwcap_feature(PACG)
#define __khwcap2_feature(x) (const_ilog2(HWCAP2_ ## x) + 32)
#define KERNEL_HWCAP_DCPODP __khwcap2_feature(DCPODP)
#define KERNEL_HWCAP_SVE2 __khwcap2_feature(SVE2)
#define KERNEL_HWCAP_SVEAES __khwcap2_feature(SVEAES)
#define KERNEL_HWCAP_SVEPMULL __khwcap2_feature(SVEPMULL)
#define KERNEL_HWCAP_SVEBITPERM __khwcap2_feature(SVEBITPERM)
#define KERNEL_HWCAP_SVESHA3 __khwcap2_feature(SVESHA3)
#define KERNEL_HWCAP_SVESM4 __khwcap2_feature(SVESM4)
#define KERNEL_HWCAP_FLAGM2 __khwcap2_feature(FLAGM2)
#define KERNEL_HWCAP_FRINT __khwcap2_feature(FRINT)
#define KERNEL_HWCAP_SVEI8MM __khwcap2_feature(SVEI8MM)
#define KERNEL_HWCAP_SVEF32MM __khwcap2_feature(SVEF32MM)
#define KERNEL_HWCAP_SVEF64MM __khwcap2_feature(SVEF64MM)
#define KERNEL_HWCAP_SVEBF16 __khwcap2_feature(SVEBF16)
#define KERNEL_HWCAP_I8MM __khwcap2_feature(I8MM)
#define KERNEL_HWCAP_BF16 __khwcap2_feature(BF16)
#define KERNEL_HWCAP_DGH __khwcap2_feature(DGH)
#define KERNEL_HWCAP_RNG __khwcap2_feature(RNG)
#define KERNEL_HWCAP_BTI __khwcap2_feature(BTI)
#define KERNEL_HWCAP_MTE __khwcap2_feature(MTE)
/*
* 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()
#ifdef CONFIG_COMPAT
#define COMPAT_ELF_HWCAP (compat_elf_hwcap)
#define COMPAT_ELF_HWCAP2 (compat_elf_hwcap2)
extern unsigned int compat_elf_hwcap, compat_elf_hwcap2;
#endif
enum {
CAP_HWCAP = 1,
#ifdef CONFIG_COMPAT
CAP_COMPAT_HWCAP,
CAP_COMPAT_HWCAP2,
#endif
};
#endif
#endif
|