mirror of
https://github.com/tildearrow/furnace.git
synced 2024-11-05 12:25:05 +00:00
148 lines
3.4 KiB
C
148 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 2003, 2007-14 Matteo Frigo
|
|
* Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
|
|
#ifdef _MSC_VER
|
|
#ifndef inline
|
|
#define inline __inline
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef _MSC_VER
|
|
#include <intrin.h>
|
|
#if (_MSC_VER >= 1600) && !defined(__INTEL_COMPILER)
|
|
#include <immintrin.h>
|
|
#endif
|
|
#endif
|
|
|
|
/* cpuid version to get all registers. Donated by Erik Lindahl from Gromacs. */
|
|
static inline void
|
|
cpuid_all(int level, int ecxval, int *eax, int *ebx, int *ecx, int *edx)
|
|
{
|
|
# ifdef _MSC_VER
|
|
int CPUInfo[4];
|
|
|
|
#if (_MSC_VER > 1500) || (_MSC_VER == 1500 & _MSC_FULL_VER >= 150030729)
|
|
/* MSVC 9.0 SP1 or later */
|
|
__cpuidex(CPUInfo, level, ecxval);
|
|
#else
|
|
__cpuid(CPUInfo, level);
|
|
#endif
|
|
*eax = CPUInfo[0];
|
|
*ebx = CPUInfo[1];
|
|
*ecx = CPUInfo[2];
|
|
*edx = CPUInfo[3];
|
|
|
|
# else
|
|
/* Not MSVC */
|
|
*eax = level;
|
|
*ecx = ecxval;
|
|
*ebx = 0;
|
|
*edx = 0;
|
|
/* No need to save ebx if we are not in pic mode */
|
|
__asm__ ("cpuid \n\t"
|
|
: "+a" (*eax), "+b" (*ebx), "+c" (*ecx), "+d" (*edx));
|
|
# endif
|
|
}
|
|
|
|
|
|
static inline int cpuid_ecx(int op)
|
|
{
|
|
# ifdef _MSC_VER
|
|
# ifdef __INTEL_COMPILER
|
|
int result;
|
|
_asm {
|
|
push rbx
|
|
mov eax,op
|
|
cpuid
|
|
mov result,ecx
|
|
pop rbx
|
|
}
|
|
return result;
|
|
# else
|
|
int cpu_info[4];
|
|
__cpuid(cpu_info,op);
|
|
return cpu_info[2];
|
|
# endif
|
|
# else
|
|
int eax, ecx = 0, edx;
|
|
|
|
__asm__("pushq %%rbx\n\tcpuid\n\tpopq %%rbx"
|
|
: "=a" (eax), "+c" (ecx), "=d" (edx)
|
|
: "a" (op));
|
|
return ecx;
|
|
# endif
|
|
}
|
|
|
|
static inline int cpuid_ebx(int op)
|
|
{
|
|
# ifdef _MSC_VER
|
|
# ifdef __INTEL_COMPILER
|
|
int result;
|
|
_asm {
|
|
push rbx
|
|
mov eax,op
|
|
cpuid
|
|
mov result,ebx
|
|
pop rbx
|
|
}
|
|
return result;
|
|
# else
|
|
int cpu_info[4];
|
|
__cpuid(cpu_info,op);
|
|
return cpu_info[1];
|
|
# endif
|
|
# else
|
|
int eax, ecx = 0, edx;
|
|
|
|
__asm__("pushq %%rbx\n\tcpuid\nmov %%ebx,%%ecx\n\tpopq %%rbx"
|
|
: "=a" (eax), "+c" (ecx), "=d" (edx)
|
|
: "a" (op));
|
|
return ecx;
|
|
# endif
|
|
}
|
|
|
|
static inline int xgetbv_eax(int op)
|
|
{
|
|
# ifdef _MSC_VER
|
|
# ifdef __INTEL_COMPILER
|
|
int veax, vedx;
|
|
_asm {
|
|
mov ecx,op
|
|
xgetbv
|
|
mov veax,eax
|
|
mov vedx,edx
|
|
}
|
|
return veax;
|
|
# else
|
|
# if defined(_MSC_VER) && (_MSC_VER >= 1600)
|
|
unsigned __int64 result;
|
|
result = _xgetbv(op);
|
|
return (int)result;
|
|
# else
|
|
# error "Need at least Visual Studio 10 SP1 for AVX support"
|
|
# endif
|
|
# endif
|
|
# else
|
|
int eax, edx;
|
|
__asm__ (".byte 0x0f, 0x01, 0xd0" : "=a"(eax), "=d"(edx) : "c" (op));
|
|
return eax;
|
|
#endif
|
|
}
|