mirror of
https://github.com/anrieff/libcpuid
synced 2025-10-03 11:01:30 +00:00
103 lines
3.6 KiB
C
103 lines
3.6 KiB
C
/*
|
|
* 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 __ASM_BITS_H__
|
|
#define __ASM_BITS_H__
|
|
#include "libcpuid.h"
|
|
|
|
/* Determine Compiler: */
|
|
#if defined(_MSC_VER)
|
|
#if !defined(COMPILER_MICROSOFT)
|
|
# define COMPILER_MICROSOFT
|
|
#endif
|
|
#elif defined(__GNUC__)
|
|
#if !defined(COMPILER_GCC)
|
|
# define COMPILER_GCC
|
|
#endif
|
|
#elif defined(__clang__)
|
|
#if !defined(COMPILER_CLANG)
|
|
# define COMPILER_CLANG
|
|
#endif
|
|
#endif
|
|
|
|
/* Determine Platform */
|
|
#if defined(__x86_64__) || defined(_M_AMD64)
|
|
#if !defined(PLATFORM_X64)
|
|
# define PLATFORM_X64
|
|
#endif
|
|
#elif defined(__i386__) || defined(_M_IX86)
|
|
#if !defined(PLATFORM_X86)
|
|
# define PLATFORM_X86
|
|
#endif
|
|
#elif defined(__arm__)
|
|
#if !defined(PLATFORM_ARM)
|
|
# define PLATFORM_ARM
|
|
#endif
|
|
#elif defined(__aarch64__)
|
|
#if !defined(PLATFORM_AARCH64)
|
|
# define PLATFORM_AARCH64
|
|
/*
|
|
* Older assemblers don't recognize newer system register names,
|
|
* but we can still access them by the Sn_n_Cn_Cn_n syntax.
|
|
*/
|
|
# define SYS_ID_AA64PFR0_EL1 "S3_0_C0_C4_0"
|
|
# define SYS_ID_AA64PFR1_EL1 "S3_0_C0_C4_1"
|
|
# define SYS_ID_AA64PFR2_EL1 "S3_0_C0_C4_2"
|
|
# define SYS_ID_AA64ZFR0_EL1 "S3_0_C0_C4_4"
|
|
# define SYS_ID_AA64SMFR0_EL1 "S3_0_C0_C4_5"
|
|
# define SYS_ID_AA64DFR0_EL1 "S3_0_C0_C5_0"
|
|
# define SYS_ID_AA64DFR1_EL1 "S3_0_C0_C5_1"
|
|
# define SYS_ID_AA64ISAR0_EL1 "S3_0_C0_C6_0"
|
|
# define SYS_ID_AA64ISAR1_EL1 "S3_0_C0_C6_1"
|
|
# define SYS_ID_AA64ISAR2_EL1 "S3_0_C0_C6_2"
|
|
# define SYS_ID_AA64MMFR0_EL1 "S3_0_C0_C7_0"
|
|
# define SYS_ID_AA64MMFR1_EL1 "S3_0_C0_C7_1"
|
|
# define SYS_ID_AA64MMFR2_EL1 "S3_0_C0_C7_2"
|
|
# define SYS_ID_AA64MMFR3_EL1 "S3_0_C0_C7_3"
|
|
# define SYS_ID_AA64MMFR4_EL1 "S3_0_C0_C7_4"
|
|
#endif
|
|
#endif
|
|
|
|
/* Under Windows/AMD64 with MSVC, inline assembly isn't supported */
|
|
#if (defined(COMPILER_GCC) || defined(COMPILER_CLANG)) || \
|
|
(defined(COMPILER_MICROSOFT) && defined(PLATFORM_X86))
|
|
# define INLINE_ASM_SUPPORTED
|
|
#endif
|
|
|
|
#ifdef INLINE_ASM_SUPPORTED
|
|
# if defined(COMPILER_GCC) || defined(COMPILER_CLANG)
|
|
# define cpu_exec_mrs(reg_name, reg_value) __asm __volatile("mrs %0, " reg_name : "=r" (reg_value))
|
|
# elif defined(COMPILER_MICROSOFT)
|
|
# define cpu_exec_mrs(reg_name, reg_value) __asm { mrs reg_value, reg_name }
|
|
# else
|
|
# error "Unsupported compiler"
|
|
# endif /* COMPILER */
|
|
#endif /* INLINE_ASM_SUPPORTED */
|
|
|
|
int cpuid_exists_by_eflags(void);
|
|
void exec_cpuid(uint32_t *regs);
|
|
void busy_sse_loop(int cycles);
|
|
|
|
#endif /* __ASM_BITS_H__ */
|