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105 lines
3.1 KiB
105 lines
3.1 KiB
/*
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* jit-cpuid-x86.h - Wrapper for the CPUID instruction.
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*
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* Copyright (C) 2004 Southern Storm Software, Pty Ltd.
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*
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* This file is part of the libjit library.
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*
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* The libjit library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation, either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* The libjit library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with the libjit library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#ifndef _JIT_CPUID_X86_H
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#define _JIT_CPUID_X86_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Structure that is used to return CPU identification information.
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*/
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typedef struct
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{
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unsigned int eax;
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unsigned int ebx;
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unsigned int ecx;
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unsigned int edx;
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} jit_cpuid_x86_t;
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/*
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* Indexes for querying cpuid information.
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*/
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#define JIT_X86CPUID_FEATURES 1
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#define JIT_X86CPUID_CACHE_TLB 2
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#define JIT_X86CPUID_SERIAL_NUMBER 3
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/*
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* Feature information.
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*/
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#define JIT_X86FEATURE_FPU 0x00000001
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#define JIT_X86FEATURE_VME 0x00000002
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#define JIT_X86FEATURE_DE 0x00000004
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#define JIT_X86FEATURE_PSE 0x00000008
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#define JIT_X86FEATURE_TSC 0x00000010
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#define JIT_X86FEATURE_MSR 0x00000020
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#define JIT_X86FEATURE_PAE 0x00000040
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#define JIT_X86FEATURE_MCE 0x00000080
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#define JIT_X86FEATURE_CX8 0x00000100
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#define JIT_X86FEATURE_APIC 0x00000200
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#define JIT_X86FEATURE_RESERVED_1 0x00000400
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#define JIT_X86FEATURE_SEP 0x00000800
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#define JIT_X86FEATURE_MTRR 0x00001000
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#define JIT_X86FEATURE_PGE 0x00002000
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#define JIT_X86FEATURE_MCA 0x00004000
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#define JIT_X86FEATURE_CMOV 0x00008000
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#define JIT_X86FEATURE_PAT 0x00010000
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#define JIT_X86FEATURE_PSE36 0x00020000
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#define JIT_X86FEATURE_PSN 0x00040000
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#define JIT_X86FEATURE_CLFSH 0x00080000
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#define JIT_X86FEATURE_RESERVED_2 0x00100000
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#define JIT_X86FEATURE_DS 0x00200000
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#define JIT_X86FEATURE_ACPI 0x00400000
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#define JIT_X86FEATURE_MMX 0x00800000
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#define JIT_X86FEATURE_FXSR 0x01000000
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#define JIT_X86FEATURE_SSE 0x02000000
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#define JIT_X86FEATURE_SSE2 0x04000000
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#define JIT_X86FEATURE_SS 0x08000000
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#define JIT_X86FEATURE_RESERVED_3 0x10000000
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#define JIT_X86FEATURE_TM 0x20000000
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#define JIT_X86FEATURE_RESERVED_4 0x40000000
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#define JIT_X86FEATURE_RESERVED_5 0x80000000
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/*
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* Get CPU identification information. Returns zero if the requested
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* information is not available.
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*/
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int _jit_cpuid_x86_get(unsigned int index, jit_cpuid_x86_t *info);
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/*
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* Determine if the CPU has a particular feature.
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*/
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int _jit_cpuid_x86_has_feature(unsigned int feature);
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/*
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* Get the size of the CPU cache line, or zero if flushing is not required.
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*/
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unsigned int _jit_cpuid_x86_line_size(void);
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#ifdef __cplusplus
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};
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#endif
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#endif /* _JIT_CPUID_X86_H */
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