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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_HALF (1 << 1) #define COMPAT_HWCAP_THUMB (1 << 2) #define COMPAT_HWCAP_FAST_MULT (1 << 4) #define COMPAT_HWCAP_VFP (1 << 6) #define COMPAT_HWCAP_EDSP (1 << 7) #define COMPAT_HWCAP_NEON (1 << 12) #define COMPAT_HWCAP_VFPv3 (1 << 13) #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_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) /* * 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
