tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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