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)
171 extern unsigned int compat_elf_hwcap, compat_elf_hwcap2;
172 #endif
173
174 enum {
175 CAP_HWCAP = 1,
176 #ifdef CONFIG_COMPAT
177 CAP_COMPAT_HWCAP,
178 CAP_COMPAT_HWCAP2,
179 #endif
180 };
181
182 #endif
183 #endif
184
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