91 lines
3.4 KiB
C
91 lines
3.4 KiB
C
|
/* $OpenBSD: x86_arch.h,v 1.1 2016/11/04 17:30:30 miod Exp $ */
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2016 Miodrag Vallat.
|
||
|
|
*
|
||
|
|
* Permission to use, copy, modify, and distribute this software for any
|
||
|
|
* purpose with or without fee is hereby granted, provided that the above
|
||
|
|
* copyright notice and this permission notice appear in all copies.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The knowledge of the layout of OPENSSL_ia32cap_P is internal to libcrypto
|
||
|
|
* (and, to some extent, to libssl), and may change in the future without
|
||
|
|
* notice.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* OPENSSL_ia32cap_P is computed at runtime by OPENSSL_ia32_cpuid().
|
||
|
|
*
|
||
|
|
* On processors which lack the cpuid instruction, the value is always
|
||
|
|
* zero (this only matters on 32-bit processors, of course).
|
||
|
|
*
|
||
|
|
* On processors which support the cpuid instruction, after running
|
||
|
|
* "cpuid 1", the value of %edx is written to the low word of OPENSSL_ia32cap_P,
|
||
|
|
* and the value of %ecx is written to its high word.
|
||
|
|
*
|
||
|
|
* Further processing is done to set or clear specific bits, depending
|
||
|
|
* upon the exact processor type.
|
||
|
|
*
|
||
|
|
* Assembly routines usually address OPENSSL_ia32cap_P as two 32-bit words,
|
||
|
|
* hence two sets of bit numbers and masks. OPENSSL_cpu_caps() returns the
|
||
|
|
* complete 64-bit word.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* bit numbers for the low word */
|
||
|
|
#define IA32CAP_BIT0_FPU 0
|
||
|
|
#define IA32CAP_BIT0_MMX 23
|
||
|
|
#define IA32CAP_BIT0_FXSR 24
|
||
|
|
#define IA32CAP_BIT0_SSE 25
|
||
|
|
#define IA32CAP_BIT0_SSE2 26
|
||
|
|
#define IA32CAP_BIT0_HT 28
|
||
|
|
|
||
|
|
/* the following bits are not obtained from cpuid */
|
||
|
|
#define IA32CAP_BIT0_INTELP4 20
|
||
|
|
#define IA32CAP_BIT0_INTEL 30
|
||
|
|
|
||
|
|
/* bit numbers for the high word */
|
||
|
|
#define IA32CAP_BIT1_PCLMUL 1
|
||
|
|
#define IA32CAP_BIT1_SSSE3 9
|
||
|
|
#define IA32CAP_BIT1_FMA3 12
|
||
|
|
#define IA32CAP_BIT1_AESNI 25
|
||
|
|
#define IA32CAP_BIT1_OSXSAVE 27
|
||
|
|
#define IA32CAP_BIT1_AVX 28
|
||
|
|
|
||
|
|
#define IA32CAP_BIT1_AMD_XOP 11
|
||
|
|
|
||
|
|
/* bit masks for the low word */
|
||
|
|
#define IA32CAP_MASK0_MMX (1 << IA32CAP_BIT0_MMX)
|
||
|
|
#define IA32CAP_MASK0_FXSR (1 << IA32CAP_BIT0_FXSR)
|
||
|
|
#define IA32CAP_MASK0_SSE (1 << IA32CAP_BIT0_SSE)
|
||
|
|
#define IA32CAP_MASK0_SSE2 (1 << IA32CAP_BIT0_SSE2)
|
||
|
|
#define IA32CAP_MASK0_HT (1 << IA32CAP_BIT0_HT)
|
||
|
|
|
||
|
|
#define IA32CAP_MASK0_INTELP4 (1 << IA32CAP_BIT0_INTELP4)
|
||
|
|
#define IA32CAP_MASK0_INTEL (1 << IA32CAP_BIT0_INTEL)
|
||
|
|
|
||
|
|
/* bit masks for the high word */
|
||
|
|
#define IA32CAP_MASK1_PCLMUL (1 << IA32CAP_BIT1_PCLMUL)
|
||
|
|
#define IA32CAP_MASK1_SSSE3 (1 << IA32CAP_BIT1_SSSE3)
|
||
|
|
#define IA32CAP_MASK1_FMA3 (1 << IA32CAP_BIT1_FMA3)
|
||
|
|
#define IA32CAP_MASK1_AESNI (1 << IA32CAP_BIT1_AESNI)
|
||
|
|
#define IA32CAP_MASK1_AVX (1 << IA32CAP_BIT1_AVX)
|
||
|
|
|
||
|
|
#define IA32CAP_MASK1_AMD_XOP (1 << IA32CAP_BIT1_AMD_XOP)
|
||
|
|
|
||
|
|
/* bit masks for OPENSSL_cpu_caps() */
|
||
|
|
#define CPUCAP_MASK_MMX IA32CAP_MASK0_MMX
|
||
|
|
#define CPUCAP_MASK_FXSR IA32CAP_MASK0_FXSR
|
||
|
|
#define CPUCAP_MASK_SSE IA32CAP_MASK0_SSE
|
||
|
|
#define CPUCAP_MASK_INTELP4 IA32CAP_MASK0_INTELP4
|
||
|
|
#define CPUCAP_MASK_PCLMUL (1ULL << (32 + IA32CAP_BIT1_PCLMUL))
|
||
|
|
#define CPUCAP_MASK_SSSE3 (1ULL << (32 + IA32CAP_BIT1_SSSE3))
|
||
|
|
#define CPUCAP_MASK_AESNI (1ULL << (32 + IA32CAP_BIT1_AESNI))
|