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Diffstat (limited to 'arch/arm64/include/asm/hwcap.h')
| -rw-r--r-- | arch/arm64/include/asm/hwcap.h | 201 |
1 files changed, 180 insertions, 21 deletions
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h index 6d4482fa35bc..1f63814ae6c4 100644 --- a/arch/arm64/include/asm/hwcap.h +++ b/arch/arm64/include/asm/hwcap.h @@ -1,48 +1,207 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012 ARM Ltd. - * - * 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #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 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 KERNEL_HWCAP_GCS __khwcap_feature(GCS) +#define KERNEL_HWCAP_CMPBR __khwcap_feature(CMPBR) +#define KERNEL_HWCAP_FPRCVT __khwcap_feature(FPRCVT) +#define KERNEL_HWCAP_F8MM8 __khwcap_feature(F8MM8) +#define KERNEL_HWCAP_F8MM4 __khwcap_feature(F8MM4) +#define KERNEL_HWCAP_SVE_F16MM __khwcap_feature(SVE_F16MM) +#define KERNEL_HWCAP_SVE_ELTPERM __khwcap_feature(SVE_ELTPERM) +#define KERNEL_HWCAP_SVE_AES2 __khwcap_feature(SVE_AES2) +#define KERNEL_HWCAP_SVE_BFSCALE __khwcap_feature(SVE_BFSCALE) +#define KERNEL_HWCAP_SVE2P2 __khwcap_feature(SVE2P2) +#define KERNEL_HWCAP_SME2P2 __khwcap_feature(SME2P2) +#define KERNEL_HWCAP_SME_SBITPERM __khwcap_feature(SME_SBITPERM) +#define KERNEL_HWCAP_SME_AES __khwcap_feature(SME_AES) +#define KERNEL_HWCAP_SME_SFEXPA __khwcap_feature(SME_SFEXPA) +#define KERNEL_HWCAP_SME_STMOP __khwcap_feature(SME_STMOP) +#define KERNEL_HWCAP_SME_SMOP4 __khwcap_feature(SME_SMOP4) + +#define __khwcap2_feature(x) (const_ilog2(HWCAP2_ ## x) + 64) +#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) +#define KERNEL_HWCAP_ECV __khwcap2_feature(ECV) +#define KERNEL_HWCAP_AFP __khwcap2_feature(AFP) +#define KERNEL_HWCAP_RPRES __khwcap2_feature(RPRES) +#define KERNEL_HWCAP_MTE3 __khwcap2_feature(MTE3) +#define KERNEL_HWCAP_SME __khwcap2_feature(SME) +#define KERNEL_HWCAP_SME_I16I64 __khwcap2_feature(SME_I16I64) +#define KERNEL_HWCAP_SME_F64F64 __khwcap2_feature(SME_F64F64) +#define KERNEL_HWCAP_SME_I8I32 __khwcap2_feature(SME_I8I32) +#define KERNEL_HWCAP_SME_F16F32 __khwcap2_feature(SME_F16F32) +#define KERNEL_HWCAP_SME_B16F32 __khwcap2_feature(SME_B16F32) +#define KERNEL_HWCAP_SME_F32F32 __khwcap2_feature(SME_F32F32) +#define KERNEL_HWCAP_SME_FA64 __khwcap2_feature(SME_FA64) +#define KERNEL_HWCAP_WFXT __khwcap2_feature(WFXT) +#define KERNEL_HWCAP_EBF16 __khwcap2_feature(EBF16) +#define KERNEL_HWCAP_SVE_EBF16 __khwcap2_feature(SVE_EBF16) +#define KERNEL_HWCAP_CSSC __khwcap2_feature(CSSC) +#define KERNEL_HWCAP_RPRFM __khwcap2_feature(RPRFM) +#define KERNEL_HWCAP_SVE2P1 __khwcap2_feature(SVE2P1) +#define KERNEL_HWCAP_SME2 __khwcap2_feature(SME2) +#define KERNEL_HWCAP_SME2P1 __khwcap2_feature(SME2P1) +#define KERNEL_HWCAP_SME_I16I32 __khwcap2_feature(SME_I16I32) +#define KERNEL_HWCAP_SME_BI32I32 __khwcap2_feature(SME_BI32I32) +#define KERNEL_HWCAP_SME_B16B16 __khwcap2_feature(SME_B16B16) +#define KERNEL_HWCAP_SME_F16F16 __khwcap2_feature(SME_F16F16) +#define KERNEL_HWCAP_MOPS __khwcap2_feature(MOPS) +#define KERNEL_HWCAP_HBC __khwcap2_feature(HBC) +#define KERNEL_HWCAP_SVE_B16B16 __khwcap2_feature(SVE_B16B16) +#define KERNEL_HWCAP_LRCPC3 __khwcap2_feature(LRCPC3) +#define KERNEL_HWCAP_LSE128 __khwcap2_feature(LSE128) +#define KERNEL_HWCAP_FPMR __khwcap2_feature(FPMR) +#define KERNEL_HWCAP_LUT __khwcap2_feature(LUT) +#define KERNEL_HWCAP_FAMINMAX __khwcap2_feature(FAMINMAX) +#define KERNEL_HWCAP_F8CVT __khwcap2_feature(F8CVT) +#define KERNEL_HWCAP_F8FMA __khwcap2_feature(F8FMA) +#define KERNEL_HWCAP_F8DP4 __khwcap2_feature(F8DP4) +#define KERNEL_HWCAP_F8DP2 __khwcap2_feature(F8DP2) +#define KERNEL_HWCAP_F8E4M3 __khwcap2_feature(F8E4M3) +#define KERNEL_HWCAP_F8E5M2 __khwcap2_feature(F8E5M2) +#define KERNEL_HWCAP_SME_LUTV2 __khwcap2_feature(SME_LUTV2) +#define KERNEL_HWCAP_SME_F8F16 __khwcap2_feature(SME_F8F16) +#define KERNEL_HWCAP_SME_F8F32 __khwcap2_feature(SME_F8F32) +#define KERNEL_HWCAP_SME_SF8FMA __khwcap2_feature(SME_SF8FMA) +#define KERNEL_HWCAP_SME_SF8DP4 __khwcap2_feature(SME_SF8DP4) +#define KERNEL_HWCAP_SME_SF8DP2 __khwcap2_feature(SME_SF8DP2) +#define KERNEL_HWCAP_POE __khwcap2_feature(POE) + +#define __khwcap3_feature(x) (const_ilog2(HWCAP3_ ## x) + 128) +#define KERNEL_HWCAP_MTE_FAR __khwcap3_feature(MTE_FAR) +#define KERNEL_HWCAP_MTE_STORE_ONLY __khwcap3_feature(MTE_STORE_ONLY) +#define KERNEL_HWCAP_LSFE __khwcap3_feature(LSFE) -#ifndef __ASSEMBLY__ /* * This yields a mask that user programs can use to figure out what * instruction set this cpu supports. */ -#define ELF_HWCAP (elf_hwcap) -#define COMPAT_ELF_HWCAP (COMPAT_HWCAP_HALF|COMPAT_HWCAP_THUMB|\ - COMPAT_HWCAP_FAST_MULT|COMPAT_HWCAP_EDSP|\ - COMPAT_HWCAP_TLS|COMPAT_HWCAP_VFP|\ - COMPAT_HWCAP_VFPv3|COMPAT_HWCAP_VFPv4|\ - COMPAT_HWCAP_NEON|COMPAT_HWCAP_IDIV) - -extern unsigned int elf_hwcap; +#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 |