pcompress/utils/cpuid.h

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/*
* This file is a part of Pcompress, a chunked parallel multi-
* algorithm lossless compression and decompression program.
*
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* Copyright (C) 2012-2013 Moinak Ghosh. All rights reserved.
* Use is subject to license terms.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
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*
* You should have received a copy of the GNU Lesser General Public
* License along with this program.
* If not, see <http://www.gnu.org/licenses/>.
*
* moinakg@belenix.org, http://moinakg.wordpress.com/
*/
/*
* Copyright 2008 Veselin Georgiev,
* anrieffNOSPAM @ mgail_DOT.com (convert to gmail)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __CPUID_H__
#define __CPUID_H__
#ifdef __x86_64__
#define VENDOR_STR_MAX 16
#define BRAND_STR_MAX 64
#define CPU_FLAGS_MAX 128
#define MAX_CPUID_LEVEL 32
#define MAX_EXT_CPUID_LEVEL 32
#define MAX_INTELFN4_LEVEL 4
typedef enum {
PROC_BIGENDIAN_GENERIC = 1,
PROC_LITENDIAN_GENERIC,
PROC_X64_INTEL,
PROC_X64_AMD
} proc_type_t;
typedef struct {
int sse_level;
int sse_sub_level;
int avx_level;
int xop_avail;
int aes_avail;
proc_type_t proc_type;
} processor_info_t;
/**
* This contains only the most basic CPU data, required to do identification
* and feature recognition. Every processor should be identifiable using this
* data only.
*/
struct cpu_raw_data_t {
/** contains results of CPUID for eax = 0, 1, ...*/
uint32_t basic_cpuid[MAX_CPUID_LEVEL][4];
/** contains results of CPUID for eax = 0x80000000, 0x80000001, ...*/
uint32_t ext_cpuid[MAX_EXT_CPUID_LEVEL][4];
/** when the CPU is intel and it supports deterministic cache
information: this contains the results of CPUID for eax = 4
and ecx = 0, 1, ... */
uint32_t intel_fn4[MAX_INTELFN4_LEVEL][4];
char vendor_str[VENDOR_STR_MAX];
};
void exec_cpuid(uint32_t *regs);
void cpuid_get_raw_data(struct cpu_raw_data_t* data);
void cpuid_basic_identify(processor_info_t *pc);
#endif /* __x86_64__ */
#endif /* __CPUID_H__ */