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-rw-r--r--src/lib/libcrypto/x86_arch.h95
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diff --git a/src/lib/libcrypto/x86_arch.h b/src/lib/libcrypto/x86_arch.h
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--- a/src/lib/libcrypto/x86_arch.h
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1/* $OpenBSD: x86_arch.h,v 1.2 2024/10/18 13:36:24 jsing Exp $ */
2/*
3 * Copyright (c) 2016 Miodrag Vallat.
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18/*
19 * The knowledge of the layout of OPENSSL_ia32cap_P is internal to libcrypto
20 * (and, to some extent, to libssl), and may change in the future without
21 * notice.
22 */
23
24/*
25 * OPENSSL_ia32cap_P is computed at runtime by OPENSSL_ia32_cpuid().
26 *
27 * On processors which lack the cpuid instruction, the value is always
28 * zero (this only matters on 32-bit processors, of course).
29 *
30 * On processors which support the cpuid instruction, after running
31 * "cpuid 1", the value of %edx is written to the low word of OPENSSL_ia32cap_P,
32 * and the value of %ecx is written to its high word.
33 *
34 * Further processing is done to set or clear specific bits, depending
35 * upon the exact processor type.
36 *
37 * Assembly routines usually address OPENSSL_ia32cap_P as two 32-bit words,
38 * hence two sets of bit numbers and masks. OPENSSL_cpu_caps() returns the
39 * complete 64-bit word.
40 */
41
42/* bit numbers for the low word */
43#define IA32CAP_BIT0_FPU 0
44#define IA32CAP_BIT0_MMX 23
45#define IA32CAP_BIT0_FXSR 24
46#define IA32CAP_BIT0_SSE 25
47#define IA32CAP_BIT0_SSE2 26
48#define IA32CAP_BIT0_HT 28
49
50/* the following bits are not obtained from cpuid */
51#define IA32CAP_BIT0_INTELP4 20
52#define IA32CAP_BIT0_INTEL 30
53
54/* bit numbers for the high word */
55#define IA32CAP_BIT1_PCLMUL 1
56#define IA32CAP_BIT1_SSSE3 9
57#define IA32CAP_BIT1_FMA3 12
58#define IA32CAP_BIT1_AESNI 25
59#define IA32CAP_BIT1_OSXSAVE 27
60#define IA32CAP_BIT1_AVX 28
61
62#define IA32CAP_BIT1_AMD_XOP 11
63
64/* bit masks for the low word */
65#define IA32CAP_MASK0_MMX (1 << IA32CAP_BIT0_MMX)
66#define IA32CAP_MASK0_FXSR (1 << IA32CAP_BIT0_FXSR)
67#define IA32CAP_MASK0_SSE (1 << IA32CAP_BIT0_SSE)
68#define IA32CAP_MASK0_SSE2 (1 << IA32CAP_BIT0_SSE2)
69#define IA32CAP_MASK0_HT (1 << IA32CAP_BIT0_HT)
70
71#define IA32CAP_MASK0_INTELP4 (1 << IA32CAP_BIT0_INTELP4)
72#define IA32CAP_MASK0_INTEL (1 << IA32CAP_BIT0_INTEL)
73
74/* bit masks for the high word */
75#define IA32CAP_MASK1_PCLMUL (1 << IA32CAP_BIT1_PCLMUL)
76#define IA32CAP_MASK1_SSSE3 (1 << IA32CAP_BIT1_SSSE3)
77#define IA32CAP_MASK1_FMA3 (1 << IA32CAP_BIT1_FMA3)
78#define IA32CAP_MASK1_AESNI (1 << IA32CAP_BIT1_AESNI)
79#define IA32CAP_MASK1_OSXSAVE (1 << IA32CAP_BIT1_OSXSAVE)
80#define IA32CAP_MASK1_AVX (1 << IA32CAP_BIT1_AVX)
81
82#define IA32CAP_MASK1_AMD_XOP (1 << IA32CAP_BIT1_AMD_XOP)
83
84/* bit masks for OPENSSL_cpu_caps() */
85#define CPUCAP_MASK_HT IA32CAP_MASK0_HT
86#define CPUCAP_MASK_MMX IA32CAP_MASK0_MMX
87#define CPUCAP_MASK_FXSR IA32CAP_MASK0_FXSR
88#define CPUCAP_MASK_SSE IA32CAP_MASK0_SSE
89#define CPUCAP_MASK_SSE2 IA32CAP_MASK0_SSE2
90#define CPUCAP_MASK_INTEL IA32CAP_MASK0_INTEL
91#define CPUCAP_MASK_INTELP4 IA32CAP_MASK0_INTELP4
92#define CPUCAP_MASK_PCLMUL (1ULL << (32 + IA32CAP_BIT1_PCLMUL))
93#define CPUCAP_MASK_SSSE3 (1ULL << (32 + IA32CAP_BIT1_SSSE3))
94#define CPUCAP_MASK_AESNI (1ULL << (32 + IA32CAP_BIT1_AESNI))
95#define CPUCAP_MASK_AVX (1ULL << (32 + IA32CAP_BIT1_AVX))