hwcap.h

  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 __ASSEMBLER__
 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#define KERNEL_HWCAP_GCS		__khwcap_feature(GCS)
 96#define KERNEL_HWCAP_CMPBR		__khwcap_feature(CMPBR)
 97#define KERNEL_HWCAP_FPRCVT		__khwcap_feature(FPRCVT)
 98#define KERNEL_HWCAP_F8MM8		__khwcap_feature(F8MM8)
 99#define KERNEL_HWCAP_F8MM4		__khwcap_feature(F8MM4)
100#define KERNEL_HWCAP_SVE_F16MM		__khwcap_feature(SVE_F16MM)
101#define KERNEL_HWCAP_SVE_ELTPERM	__khwcap_feature(SVE_ELTPERM)
102#define KERNEL_HWCAP_SVE_AES2		__khwcap_feature(SVE_AES2)
103#define KERNEL_HWCAP_SVE_BFSCALE	__khwcap_feature(SVE_BFSCALE)
104#define KERNEL_HWCAP_SVE2P2		__khwcap_feature(SVE2P2)
105#define KERNEL_HWCAP_SME2P2		__khwcap_feature(SME2P2)
106#define KERNEL_HWCAP_SME_SBITPERM	__khwcap_feature(SME_SBITPERM)
107#define KERNEL_HWCAP_SME_AES		__khwcap_feature(SME_AES)
108#define KERNEL_HWCAP_SME_SFEXPA		__khwcap_feature(SME_SFEXPA)
109#define KERNEL_HWCAP_SME_STMOP		__khwcap_feature(SME_STMOP)
110#define KERNEL_HWCAP_SME_SMOP4		__khwcap_feature(SME_SMOP4)
111
112#define __khwcap2_feature(x)		(const_ilog2(HWCAP2_ ## x) + 64)
113#define KERNEL_HWCAP_DCPODP		__khwcap2_feature(DCPODP)
114#define KERNEL_HWCAP_SVE2		__khwcap2_feature(SVE2)
115#define KERNEL_HWCAP_SVEAES		__khwcap2_feature(SVEAES)
116#define KERNEL_HWCAP_SVEPMULL		__khwcap2_feature(SVEPMULL)
117#define KERNEL_HWCAP_SVEBITPERM		__khwcap2_feature(SVEBITPERM)
118#define KERNEL_HWCAP_SVESHA3		__khwcap2_feature(SVESHA3)
119#define KERNEL_HWCAP_SVESM4		__khwcap2_feature(SVESM4)
120#define KERNEL_HWCAP_FLAGM2		__khwcap2_feature(FLAGM2)
121#define KERNEL_HWCAP_FRINT		__khwcap2_feature(FRINT)
122#define KERNEL_HWCAP_SVEI8MM		__khwcap2_feature(SVEI8MM)
123#define KERNEL_HWCAP_SVEF32MM		__khwcap2_feature(SVEF32MM)
124#define KERNEL_HWCAP_SVEF64MM		__khwcap2_feature(SVEF64MM)
125#define KERNEL_HWCAP_SVEBF16		__khwcap2_feature(SVEBF16)
126#define KERNEL_HWCAP_I8MM		__khwcap2_feature(I8MM)
127#define KERNEL_HWCAP_BF16		__khwcap2_feature(BF16)
128#define KERNEL_HWCAP_DGH		__khwcap2_feature(DGH)
129#define KERNEL_HWCAP_RNG		__khwcap2_feature(RNG)
130#define KERNEL_HWCAP_BTI		__khwcap2_feature(BTI)
131#define KERNEL_HWCAP_MTE		__khwcap2_feature(MTE)
132#define KERNEL_HWCAP_ECV		__khwcap2_feature(ECV)
133#define KERNEL_HWCAP_AFP		__khwcap2_feature(AFP)
134#define KERNEL_HWCAP_RPRES		__khwcap2_feature(RPRES)
135#define KERNEL_HWCAP_MTE3		__khwcap2_feature(MTE3)
136#define KERNEL_HWCAP_SME		__khwcap2_feature(SME)
137#define KERNEL_HWCAP_SME_I16I64		__khwcap2_feature(SME_I16I64)
138#define KERNEL_HWCAP_SME_F64F64		__khwcap2_feature(SME_F64F64)
139#define KERNEL_HWCAP_SME_I8I32		__khwcap2_feature(SME_I8I32)
140#define KERNEL_HWCAP_SME_F16F32		__khwcap2_feature(SME_F16F32)
141#define KERNEL_HWCAP_SME_B16F32		__khwcap2_feature(SME_B16F32)
142#define KERNEL_HWCAP_SME_F32F32		__khwcap2_feature(SME_F32F32)
143#define KERNEL_HWCAP_SME_FA64		__khwcap2_feature(SME_FA64)
144#define KERNEL_HWCAP_WFXT		__khwcap2_feature(WFXT)
145#define KERNEL_HWCAP_EBF16		__khwcap2_feature(EBF16)
146#define KERNEL_HWCAP_SVE_EBF16		__khwcap2_feature(SVE_EBF16)
147#define KERNEL_HWCAP_CSSC		__khwcap2_feature(CSSC)
148#define KERNEL_HWCAP_RPRFM		__khwcap2_feature(RPRFM)
149#define KERNEL_HWCAP_SVE2P1		__khwcap2_feature(SVE2P1)
150#define KERNEL_HWCAP_SME2		__khwcap2_feature(SME2)
151#define KERNEL_HWCAP_SME2P1		__khwcap2_feature(SME2P1)
152#define KERNEL_HWCAP_SME_I16I32		__khwcap2_feature(SME_I16I32)
153#define KERNEL_HWCAP_SME_BI32I32	__khwcap2_feature(SME_BI32I32)
154#define KERNEL_HWCAP_SME_B16B16		__khwcap2_feature(SME_B16B16)
155#define KERNEL_HWCAP_SME_F16F16		__khwcap2_feature(SME_F16F16)
156#define KERNEL_HWCAP_MOPS		__khwcap2_feature(MOPS)
157#define KERNEL_HWCAP_HBC		__khwcap2_feature(HBC)
158#define KERNEL_HWCAP_SVE_B16B16		__khwcap2_feature(SVE_B16B16)
159#define KERNEL_HWCAP_LRCPC3		__khwcap2_feature(LRCPC3)
160#define KERNEL_HWCAP_LSE128		__khwcap2_feature(LSE128)
161#define KERNEL_HWCAP_FPMR		__khwcap2_feature(FPMR)
162#define KERNEL_HWCAP_LUT		__khwcap2_feature(LUT)
163#define KERNEL_HWCAP_FAMINMAX		__khwcap2_feature(FAMINMAX)
164#define KERNEL_HWCAP_F8CVT		__khwcap2_feature(F8CVT)
165#define KERNEL_HWCAP_F8FMA		__khwcap2_feature(F8FMA)
166#define KERNEL_HWCAP_F8DP4		__khwcap2_feature(F8DP4)
167#define KERNEL_HWCAP_F8DP2		__khwcap2_feature(F8DP2)
168#define KERNEL_HWCAP_F8E4M3		__khwcap2_feature(F8E4M3)
169#define KERNEL_HWCAP_F8E5M2		__khwcap2_feature(F8E5M2)
170#define KERNEL_HWCAP_SME_LUTV2		__khwcap2_feature(SME_LUTV2)
171#define KERNEL_HWCAP_SME_F8F16		__khwcap2_feature(SME_F8F16)
172#define KERNEL_HWCAP_SME_F8F32		__khwcap2_feature(SME_F8F32)
173#define KERNEL_HWCAP_SME_SF8FMA		__khwcap2_feature(SME_SF8FMA)
174#define KERNEL_HWCAP_SME_SF8DP4		__khwcap2_feature(SME_SF8DP4)
175#define KERNEL_HWCAP_SME_SF8DP2		__khwcap2_feature(SME_SF8DP2)
176#define KERNEL_HWCAP_POE		__khwcap2_feature(POE)
177
178#define __khwcap3_feature(x)		(const_ilog2(HWCAP3_ ## x) + 128)
179#define KERNEL_HWCAP_MTE_FAR		__khwcap3_feature(MTE_FAR)
180#define KERNEL_HWCAP_MTE_STORE_ONLY	__khwcap3_feature(MTE_STORE_ONLY)
181#define KERNEL_HWCAP_LSFE		__khwcap3_feature(LSFE)
182
183/*
184 * This yields a mask that user programs can use to figure out what
185 * instruction set this cpu supports.
186 */
187#define ELF_HWCAP		cpu_get_elf_hwcap()
188#define ELF_HWCAP2		cpu_get_elf_hwcap2()
189#define ELF_HWCAP3		cpu_get_elf_hwcap3()
190
191#ifdef CONFIG_COMPAT
192#define COMPAT_ELF_HWCAP	(compat_elf_hwcap)
193#define COMPAT_ELF_HWCAP2	(compat_elf_hwcap2)
194#define COMPAT_ELF_HWCAP3	(compat_elf_hwcap3)
195extern unsigned int compat_elf_hwcap, compat_elf_hwcap2, compat_elf_hwcap3;
196#endif
197
198enum {
199	CAP_HWCAP = 1,
200#ifdef CONFIG_COMPAT
201	CAP_COMPAT_HWCAP,
202	CAP_COMPAT_HWCAP2,
203#endif
204};
205
206#endif
207#endif