1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (C) 2012 ARM Ltd. 4 */ 5#ifndef __ASM_HWCAP_H 6#define __ASM_HWCAP_H 7 8#include <uapi/asm/hwcap.h> 9#include <asm/cpufeature.h> 10 11#define COMPAT_HWCAP_SWP (1 << 0) 12#define COMPAT_HWCAP_HALF (1 << 1) 13#define COMPAT_HWCAP_THUMB (1 << 2) 14#define COMPAT_HWCAP_26BIT (1 << 3) 15#define COMPAT_HWCAP_FAST_MULT (1 << 4) 16#define COMPAT_HWCAP_FPA (1 << 5) 17#define COMPAT_HWCAP_VFP (1 << 6) 18#define COMPAT_HWCAP_EDSP (1 << 7) 19#define COMPAT_HWCAP_JAVA (1 << 8) 20#define COMPAT_HWCAP_IWMMXT (1 << 9) 21#define COMPAT_HWCAP_CRUNCH (1 << 10) /* Obsolete */ 22#define COMPAT_HWCAP_THUMBEE (1 << 11) 23#define COMPAT_HWCAP_NEON (1 << 12) 24#define COMPAT_HWCAP_VFPv3 (1 << 13) 25#define COMPAT_HWCAP_VFPV3D16 (1 << 14) 26#define COMPAT_HWCAP_TLS (1 << 15) 27#define COMPAT_HWCAP_VFPv4 (1 << 16) 28#define COMPAT_HWCAP_IDIVA (1 << 17) 29#define COMPAT_HWCAP_IDIVT (1 << 18) 30#define COMPAT_HWCAP_IDIV (COMPAT_HWCAP_IDIVA|COMPAT_HWCAP_IDIVT) 31#define COMPAT_HWCAP_VFPD32 (1 << 19) 32#define COMPAT_HWCAP_LPAE (1 << 20) 33#define COMPAT_HWCAP_EVTSTRM (1 << 21) 34#define COMPAT_HWCAP_FPHP (1 << 22) 35#define COMPAT_HWCAP_ASIMDHP (1 << 23) 36#define COMPAT_HWCAP_ASIMDDP (1 << 24) 37#define COMPAT_HWCAP_ASIMDFHM (1 << 25) 38#define COMPAT_HWCAP_ASIMDBF16 (1 << 26) 39#define COMPAT_HWCAP_I8MM (1 << 27) 40 41#define COMPAT_HWCAP2_AES (1 << 0) 42#define COMPAT_HWCAP2_PMULL (1 << 1) 43#define COMPAT_HWCAP2_SHA1 (1 << 2) 44#define COMPAT_HWCAP2_SHA2 (1 << 3) 45#define COMPAT_HWCAP2_CRC32 (1 << 4) 46#define COMPAT_HWCAP2_SB (1 << 5) 47#define COMPAT_HWCAP2_SSBS (1 << 6) 48 49#ifndef __ASSEMBLY__ 50#include <linux/log2.h> 51 52/* 53 * For userspace we represent hwcaps as a collection of HWCAP{,2}_x bitfields 54 * as described in uapi/asm/hwcap.h. For the kernel we represent hwcaps as 55 * natural numbers (in a single range of size MAX_CPU_FEATURES) defined here 56 * with prefix KERNEL_HWCAP_ mapped to their HWCAP{,2}_x counterpart. 57 * 58 * Hwcaps should be set and tested within the kernel via the 59 * cpu_{set,have}_named_feature(feature) where feature is the unique suffix 60 * of KERNEL_HWCAP_{feature}. 61 */ 62#define __khwcap_feature(x) const_ilog2(HWCAP_ ## x) 63#define KERNEL_HWCAP_FP __khwcap_feature(FP) 64#define KERNEL_HWCAP_ASIMD __khwcap_feature(ASIMD) 65#define KERNEL_HWCAP_EVTSTRM __khwcap_feature(EVTSTRM) 66#define KERNEL_HWCAP_AES __khwcap_feature(AES) 67#define KERNEL_HWCAP_PMULL __khwcap_feature(PMULL) 68#define KERNEL_HWCAP_SHA1 __khwcap_feature(SHA1) 69#define KERNEL_HWCAP_SHA2 __khwcap_feature(SHA2) 70#define KERNEL_HWCAP_CRC32 __khwcap_feature(CRC32) 71#define KERNEL_HWCAP_ATOMICS __khwcap_feature(ATOMICS) 72#define KERNEL_HWCAP_FPHP __khwcap_feature(FPHP) 73#define KERNEL_HWCAP_ASIMDHP __khwcap_feature(ASIMDHP) 74#define KERNEL_HWCAP_CPUID __khwcap_feature(CPUID) 75#define KERNEL_HWCAP_ASIMDRDM __khwcap_feature(ASIMDRDM) 76#define KERNEL_HWCAP_JSCVT __khwcap_feature(JSCVT) 77#define KERNEL_HWCAP_FCMA __khwcap_feature(FCMA) 78#define KERNEL_HWCAP_LRCPC __khwcap_feature(LRCPC) 79#define KERNEL_HWCAP_DCPOP __khwcap_feature(DCPOP) 80#define KERNEL_HWCAP_SHA3 __khwcap_feature(SHA3) 81#define KERNEL_HWCAP_SM3 __khwcap_feature(SM3) 82#define KERNEL_HWCAP_SM4 __khwcap_feature(SM4) 83#define KERNEL_HWCAP_ASIMDDP __khwcap_feature(ASIMDDP) 84#define KERNEL_HWCAP_SHA512 __khwcap_feature(SHA512) 85#define KERNEL_HWCAP_SVE __khwcap_feature(SVE) 86#define KERNEL_HWCAP_ASIMDFHM __khwcap_feature(ASIMDFHM) 87#define KERNEL_HWCAP_DIT __khwcap_feature(DIT) 88#define KERNEL_HWCAP_USCAT __khwcap_feature(USCAT) 89#define KERNEL_HWCAP_ILRCPC __khwcap_feature(ILRCPC) 90#define KERNEL_HWCAP_FLAGM __khwcap_feature(FLAGM) 91#define KERNEL_HWCAP_SSBS __khwcap_feature(SSBS) 92#define KERNEL_HWCAP_SB __khwcap_feature(SB) 93#define KERNEL_HWCAP_PACA __khwcap_feature(PACA) 94#define KERNEL_HWCAP_PACG __khwcap_feature(PACG) 95 96#define __khwcap2_feature(x) (const_ilog2(HWCAP2_ ## x) + 64) 97#define KERNEL_HWCAP_DCPODP __khwcap2_feature(DCPODP) 98#define KERNEL_HWCAP_SVE2 __khwcap2_feature(SVE2) 99#define KERNEL_HWCAP_SVEAES __khwcap2_feature(SVEAES) 100#define KERNEL_HWCAP_SVEPMULL __khwcap2_feature(SVEPMULL) 101#define KERNEL_HWCAP_SVEBITPERM __khwcap2_feature(SVEBITPERM) 102#define KERNEL_HWCAP_SVESHA3 __khwcap2_feature(SVESHA3) 103#define KERNEL_HWCAP_SVESM4 __khwcap2_feature(SVESM4) 104#define KERNEL_HWCAP_FLAGM2 __khwcap2_feature(FLAGM2) 105#define KERNEL_HWCAP_FRINT __khwcap2_feature(FRINT) 106#define KERNEL_HWCAP_SVEI8MM __khwcap2_feature(SVEI8MM) 107#define KERNEL_HWCAP_SVEF32MM __khwcap2_feature(SVEF32MM) 108#define KERNEL_HWCAP_SVEF64MM __khwcap2_feature(SVEF64MM) 109#define KERNEL_HWCAP_SVEBF16 __khwcap2_feature(SVEBF16) 110#define KERNEL_HWCAP_I8MM __khwcap2_feature(I8MM) 111#define KERNEL_HWCAP_BF16 __khwcap2_feature(BF16) 112#define KERNEL_HWCAP_DGH __khwcap2_feature(DGH) 113#define KERNEL_HWCAP_RNG __khwcap2_feature(RNG) 114#define KERNEL_HWCAP_BTI __khwcap2_feature(BTI) 115#define KERNEL_HWCAP_MTE __khwcap2_feature(MTE) 116#define KERNEL_HWCAP_ECV __khwcap2_feature(ECV) 117#define KERNEL_HWCAP_AFP __khwcap2_feature(AFP) 118#define KERNEL_HWCAP_RPRES __khwcap2_feature(RPRES) 119#define KERNEL_HWCAP_MTE3 __khwcap2_feature(MTE3) 120#define KERNEL_HWCAP_SME __khwcap2_feature(SME) 121#define KERNEL_HWCAP_SME_I16I64 __khwcap2_feature(SME_I16I64) 122#define KERNEL_HWCAP_SME_F64F64 __khwcap2_feature(SME_F64F64) 123#define KERNEL_HWCAP_SME_I8I32 __khwcap2_feature(SME_I8I32) 124#define KERNEL_HWCAP_SME_F16F32 __khwcap2_feature(SME_F16F32) 125#define KERNEL_HWCAP_SME_B16F32 __khwcap2_feature(SME_B16F32) 126#define KERNEL_HWCAP_SME_F32F32 __khwcap2_feature(SME_F32F32) 127#define KERNEL_HWCAP_SME_FA64 __khwcap2_feature(SME_FA64) 128#define KERNEL_HWCAP_WFXT __khwcap2_feature(WFXT) 129#define KERNEL_HWCAP_EBF16 __khwcap2_feature(EBF16) 130#define KERNEL_HWCAP_SVE_EBF16 __khwcap2_feature(SVE_EBF16) 131#define KERNEL_HWCAP_CSSC __khwcap2_feature(CSSC) 132#define KERNEL_HWCAP_RPRFM __khwcap2_feature(RPRFM) 133#define KERNEL_HWCAP_SVE2P1 __khwcap2_feature(SVE2P1) 134#define KERNEL_HWCAP_SME2 __khwcap2_feature(SME2) 135#define KERNEL_HWCAP_SME2P1 __khwcap2_feature(SME2P1) 136#define KERNEL_HWCAP_SME_I16I32 __khwcap2_feature(SME_I16I32) 137#define KERNEL_HWCAP_SME_BI32I32 __khwcap2_feature(SME_BI32I32) 138#define KERNEL_HWCAP_SME_B16B16 __khwcap2_feature(SME_B16B16) 139#define KERNEL_HWCAP_SME_F16F16 __khwcap2_feature(SME_F16F16) 140#define KERNEL_HWCAP_MOPS __khwcap2_feature(MOPS) 141#define KERNEL_HWCAP_HBC __khwcap2_feature(HBC) 142#define KERNEL_HWCAP_SVE_B16B16 __khwcap2_feature(SVE_B16B16) 143#define KERNEL_HWCAP_LRCPC3 __khwcap2_feature(LRCPC3) 144#define KERNEL_HWCAP_LSE128 __khwcap2_feature(LSE128) 145#define KERNEL_HWCAP_FPMR __khwcap2_feature(FPMR) 146#define KERNEL_HWCAP_LUT __khwcap2_feature(LUT) 147#define KERNEL_HWCAP_FAMINMAX __khwcap2_feature(FAMINMAX) 148#define KERNEL_HWCAP_F8CVT __khwcap2_feature(F8CVT) 149#define KERNEL_HWCAP_F8FMA __khwcap2_feature(F8FMA) 150#define KERNEL_HWCAP_F8DP4 __khwcap2_feature(F8DP4) 151#define KERNEL_HWCAP_F8DP2 __khwcap2_feature(F8DP2) 152#define KERNEL_HWCAP_F8E4M3 __khwcap2_feature(F8E4M3) 153#define KERNEL_HWCAP_F8E5M2 __khwcap2_feature(F8E5M2) 154#define KERNEL_HWCAP_SME_LUTV2 __khwcap2_feature(SME_LUTV2) 155#define KERNEL_HWCAP_SME_F8F16 __khwcap2_feature(SME_F8F16) 156#define KERNEL_HWCAP_SME_F8F32 __khwcap2_feature(SME_F8F32) 157#define KERNEL_HWCAP_SME_SF8FMA __khwcap2_feature(SME_SF8FMA) 158#define KERNEL_HWCAP_SME_SF8DP4 __khwcap2_feature(SME_SF8DP4) 159#define KERNEL_HWCAP_SME_SF8DP2 __khwcap2_feature(SME_SF8DP2) 160 161/* 162 * This yields a mask that user programs can use to figure out what 163 * instruction set this cpu supports. 164 */ 165#define ELF_HWCAP cpu_get_elf_hwcap() 166#define ELF_HWCAP2 cpu_get_elf_hwcap2() 167 168#ifdef CONFIG_COMPAT 169#define COMPAT_ELF_HWCAP (compat_elf_hwcap) 170#define COMPAT_ELF_HWCAP2 (compat_elf_hwcap2) 171extern unsigned int compat_elf_hwcap, compat_elf_hwcap2; 172#endif 173 174enum { 175 CAP_HWCAP = 1, 176#ifdef CONFIG_COMPAT 177 CAP_COMPAT_HWCAP, 178 CAP_COMPAT_HWCAP2, 179#endif 180}; 181 182#endif 183#endif 184