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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
35#define COMPAT_HWCAP2_AES (1 << 0)
36#define COMPAT_HWCAP2_PMULL (1 << 1)
37#define COMPAT_HWCAP2_SHA1 (1 << 2)
38#define COMPAT_HWCAP2_SHA2 (1 << 3)
39#define COMPAT_HWCAP2_CRC32 (1 << 4)
40
41#ifndef __ASSEMBLY__
42#include <linux/log2.h>
43
44/*
45 * For userspace we represent hwcaps as a collection of HWCAP{,2}_x bitfields
46 * as described in uapi/asm/hwcap.h. For the kernel we represent hwcaps as
47 * natural numbers (in a single range of size MAX_CPU_FEATURES) defined here
48 * with prefix KERNEL_HWCAP_ mapped to their HWCAP{,2}_x counterpart.
49 *
50 * Hwcaps should be set and tested within the kernel via the
51 * cpu_{set,have}_named_feature(feature) where feature is the unique suffix
52 * of KERNEL_HWCAP_{feature}.
53 */
54#define __khwcap_feature(x) const_ilog2(HWCAP_ ## x)
55#define KERNEL_HWCAP_FP __khwcap_feature(FP)
56#define KERNEL_HWCAP_ASIMD __khwcap_feature(ASIMD)
57#define KERNEL_HWCAP_EVTSTRM __khwcap_feature(EVTSTRM)
58#define KERNEL_HWCAP_AES __khwcap_feature(AES)
59#define KERNEL_HWCAP_PMULL __khwcap_feature(PMULL)
60#define KERNEL_HWCAP_SHA1 __khwcap_feature(SHA1)
61#define KERNEL_HWCAP_SHA2 __khwcap_feature(SHA2)
62#define KERNEL_HWCAP_CRC32 __khwcap_feature(CRC32)
63#define KERNEL_HWCAP_ATOMICS __khwcap_feature(ATOMICS)
64#define KERNEL_HWCAP_FPHP __khwcap_feature(FPHP)
65#define KERNEL_HWCAP_ASIMDHP __khwcap_feature(ASIMDHP)
66#define KERNEL_HWCAP_CPUID __khwcap_feature(CPUID)
67#define KERNEL_HWCAP_ASIMDRDM __khwcap_feature(ASIMDRDM)
68#define KERNEL_HWCAP_JSCVT __khwcap_feature(JSCVT)
69#define KERNEL_HWCAP_FCMA __khwcap_feature(FCMA)
70#define KERNEL_HWCAP_LRCPC __khwcap_feature(LRCPC)
71#define KERNEL_HWCAP_DCPOP __khwcap_feature(DCPOP)
72#define KERNEL_HWCAP_SHA3 __khwcap_feature(SHA3)
73#define KERNEL_HWCAP_SM3 __khwcap_feature(SM3)
74#define KERNEL_HWCAP_SM4 __khwcap_feature(SM4)
75#define KERNEL_HWCAP_ASIMDDP __khwcap_feature(ASIMDDP)
76#define KERNEL_HWCAP_SHA512 __khwcap_feature(SHA512)
77#define KERNEL_HWCAP_SVE __khwcap_feature(SVE)
78#define KERNEL_HWCAP_ASIMDFHM __khwcap_feature(ASIMDFHM)
79#define KERNEL_HWCAP_DIT __khwcap_feature(DIT)
80#define KERNEL_HWCAP_USCAT __khwcap_feature(USCAT)
81#define KERNEL_HWCAP_ILRCPC __khwcap_feature(ILRCPC)
82#define KERNEL_HWCAP_FLAGM __khwcap_feature(FLAGM)
83#define KERNEL_HWCAP_SSBS __khwcap_feature(SSBS)
84#define KERNEL_HWCAP_SB __khwcap_feature(SB)
85#define KERNEL_HWCAP_PACA __khwcap_feature(PACA)
86#define KERNEL_HWCAP_PACG __khwcap_feature(PACG)
87
88#define __khwcap2_feature(x) (const_ilog2(HWCAP2_ ## x) + 64)
89#define KERNEL_HWCAP_DCPODP __khwcap2_feature(DCPODP)
90#define KERNEL_HWCAP_SVE2 __khwcap2_feature(SVE2)
91#define KERNEL_HWCAP_SVEAES __khwcap2_feature(SVEAES)
92#define KERNEL_HWCAP_SVEPMULL __khwcap2_feature(SVEPMULL)
93#define KERNEL_HWCAP_SVEBITPERM __khwcap2_feature(SVEBITPERM)
94#define KERNEL_HWCAP_SVESHA3 __khwcap2_feature(SVESHA3)
95#define KERNEL_HWCAP_SVESM4 __khwcap2_feature(SVESM4)
96#define KERNEL_HWCAP_FLAGM2 __khwcap2_feature(FLAGM2)
97#define KERNEL_HWCAP_FRINT __khwcap2_feature(FRINT)
98#define KERNEL_HWCAP_SVEI8MM __khwcap2_feature(SVEI8MM)
99#define KERNEL_HWCAP_SVEF32MM __khwcap2_feature(SVEF32MM)
100#define KERNEL_HWCAP_SVEF64MM __khwcap2_feature(SVEF64MM)
101#define KERNEL_HWCAP_SVEBF16 __khwcap2_feature(SVEBF16)
102#define KERNEL_HWCAP_I8MM __khwcap2_feature(I8MM)
103#define KERNEL_HWCAP_BF16 __khwcap2_feature(BF16)
104#define KERNEL_HWCAP_DGH __khwcap2_feature(DGH)
105#define KERNEL_HWCAP_RNG __khwcap2_feature(RNG)
106#define KERNEL_HWCAP_BTI __khwcap2_feature(BTI)
107#define KERNEL_HWCAP_MTE __khwcap2_feature(MTE)
108#define KERNEL_HWCAP_ECV __khwcap2_feature(ECV)
109#define KERNEL_HWCAP_AFP __khwcap2_feature(AFP)
110#define KERNEL_HWCAP_RPRES __khwcap2_feature(RPRES)
111#define KERNEL_HWCAP_MTE3 __khwcap2_feature(MTE3)
112#define KERNEL_HWCAP_SME __khwcap2_feature(SME)
113#define KERNEL_HWCAP_SME_I16I64 __khwcap2_feature(SME_I16I64)
114#define KERNEL_HWCAP_SME_F64F64 __khwcap2_feature(SME_F64F64)
115#define KERNEL_HWCAP_SME_I8I32 __khwcap2_feature(SME_I8I32)
116#define KERNEL_HWCAP_SME_F16F32 __khwcap2_feature(SME_F16F32)
117#define KERNEL_HWCAP_SME_B16F32 __khwcap2_feature(SME_B16F32)
118#define KERNEL_HWCAP_SME_F32F32 __khwcap2_feature(SME_F32F32)
119#define KERNEL_HWCAP_SME_FA64 __khwcap2_feature(SME_FA64)
120#define KERNEL_HWCAP_WFXT __khwcap2_feature(WFXT)
121#define KERNEL_HWCAP_EBF16 __khwcap2_feature(EBF16)
122#define KERNEL_HWCAP_SVE_EBF16 __khwcap2_feature(SVE_EBF16)
123#define KERNEL_HWCAP_CSSC __khwcap2_feature(CSSC)
124#define KERNEL_HWCAP_RPRFM __khwcap2_feature(RPRFM)
125#define KERNEL_HWCAP_SVE2P1 __khwcap2_feature(SVE2P1)
126
127/*
128 * This yields a mask that user programs can use to figure out what
129 * instruction set this cpu supports.
130 */
131#define ELF_HWCAP cpu_get_elf_hwcap()
132#define ELF_HWCAP2 cpu_get_elf_hwcap2()
133
134#ifdef CONFIG_COMPAT
135#define COMPAT_ELF_HWCAP (compat_elf_hwcap)
136#define COMPAT_ELF_HWCAP2 (compat_elf_hwcap2)
137extern unsigned int compat_elf_hwcap, compat_elf_hwcap2;
138#endif
139
140enum {
141 CAP_HWCAP = 1,
142#ifdef CONFIG_COMPAT
143 CAP_COMPAT_HWCAP,
144 CAP_COMPAT_HWCAP2,
145#endif
146};
147
148#endif
149#endif