mirror of
https://github.com/kanjitalk755/macemu.git
synced 2024-06-27 16:29:29 +00:00
Move processor capability information to utils-cpuinfo.[ch]hpp. Add new
utils-sentinel.hpp for helper functions to be called at program initialization and termination.
This commit is contained in:
gbeauche
parent
9bc307c3fd
commit
7cfee5a2be
137
SheepShaver/src/kpx_cpu/src/utils/utils-cpuinfo.cpp
Normal file
137
SheepShaver/src/kpx_cpu/src/utils/utils-cpuinfo.cpp
Normal file
|
|
@ -0,0 +1,137 @@
|
|||
/*
|
||||
* utils-cpuinfo.cpp - Processor capability information
|
||||
*
|
||||
* Kheperix (C) 2003-2005 Gwenole Beauchesne
|
||||
*
|
||||
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#include "sysdeps.h"
|
||||
#include "utils/utils-cpuinfo.hpp"
|
||||
#include "utils/utils-sentinel.hpp"
|
||||
|
||||
// x86 CPU features
|
||||
static uint32 x86_cpu_features = 0;
|
||||
|
||||
enum {
|
||||
HWCAP_I386_CMOV = 1 << 15,
|
||||
HWCAP_I386_MMX = 1 << 23,
|
||||
HWCAP_I386_SSE = 1 << 25,
|
||||
HWCAP_I386_SSE2 = 1 << 26,
|
||||
HWCAP_I386_EDX_FLAGS = (HWCAP_I386_CMOV|HWCAP_I386_MMX|HWCAP_I386_SSE|HWCAP_I386_SSE2),
|
||||
HWCAP_I386_SSE3 = 1 << 0,
|
||||
HWCAP_I386_SSE4 = 1 << 9,
|
||||
HWCAP_I386_ECX_FLAGS = (HWCAP_I386_SSE3|HWCAP_I386_SSE4),
|
||||
};
|
||||
|
||||
// Determine x86 CPU features
|
||||
DEFINE_INIT_SENTINEL(init_x86_cpu_features);
|
||||
|
||||
static void init_x86_cpu_features(void)
|
||||
{
|
||||
#if defined(__i386__) || defined(__x86_64__)
|
||||
unsigned int fl1, fl2;
|
||||
|
||||
#ifndef __x86_64__
|
||||
/* See if we can use cpuid. On AMD64 we always can. */
|
||||
__asm__ ("pushfl; pushfl; popl %0; movl %0,%1; xorl %2,%0;"
|
||||
"pushl %0; popfl; pushfl; popl %0; popfl"
|
||||
: "=&r" (fl1), "=&r" (fl2)
|
||||
: "i" (0x00200000));
|
||||
if (((fl1 ^ fl2) & 0x00200000) == 0)
|
||||
return;
|
||||
#endif
|
||||
|
||||
/* Host supports cpuid. See if cpuid gives capabilities, try
|
||||
CPUID(0). Preserve %ebx and %ecx; cpuid insn clobbers these, we
|
||||
don't need their CPUID values here, and %ebx may be the PIC
|
||||
register. */
|
||||
#ifdef __x86_64__
|
||||
__asm__ ("pushq %%rcx; pushq %%rbx; cpuid; popq %%rbx; popq %%rcx"
|
||||
: "=a" (fl1) : "0" (0) : "rdx", "cc");
|
||||
#else
|
||||
__asm__ ("push %%ecx ; push %%ebx ; cpuid ; pop %%ebx ; pop %%ecx"
|
||||
: "=a" (fl1) : "0" (0) : "edx", "cc");
|
||||
#endif
|
||||
if (fl1 == 0)
|
||||
return;
|
||||
|
||||
/* Invoke CPUID(1), return %edx; caller can examine bits to
|
||||
determine what's supported. */
|
||||
#ifdef __x86_64__
|
||||
__asm__ ("push %%rbx ; cpuid ; pop %%rbx" : "=c" (fl1), "=d" (fl2) : "a" (1) : "cc");
|
||||
#else
|
||||
__asm__ ("push %%ebx ; cpuid ; pop %%ebx" : "=c" (fl1), "=d" (fl2) : "a" (1) : "cc");
|
||||
#endif
|
||||
|
||||
x86_cpu_features = (fl1 & HWCAP_I386_ECX_FLAGS) | (fl2 & HWCAP_I386_EDX_FLAGS);
|
||||
#endif
|
||||
}
|
||||
|
||||
// Check for x86 feature CMOV
|
||||
bool cpuinfo_check_cmov(void)
|
||||
{
|
||||
return x86_cpu_features & HWCAP_I386_CMOV;
|
||||
}
|
||||
|
||||
// Check for x86 feature MMX
|
||||
bool cpuinfo_check_mmx(void)
|
||||
{
|
||||
return x86_cpu_features & HWCAP_I386_MMX;
|
||||
}
|
||||
|
||||
// Check for x86 feature SSE
|
||||
bool cpuinfo_check_sse(void)
|
||||
{
|
||||
return x86_cpu_features & HWCAP_I386_SSE;
|
||||
}
|
||||
|
||||
// Check for x86 feature SSE2
|
||||
bool cpuinfo_check_sse2(void)
|
||||
{
|
||||
return x86_cpu_features & HWCAP_I386_SSE2;
|
||||
}
|
||||
|
||||
// Check for x86 feature SSE3
|
||||
bool cpuinfo_check_sse3(void)
|
||||
{
|
||||
return x86_cpu_features & HWCAP_I386_SSE3;
|
||||
}
|
||||
|
||||
// Check for x86 feature SSE4
|
||||
bool cpuinfo_check_sse4(void)
|
||||
{
|
||||
return x86_cpu_features & HWCAP_I386_SSE4;
|
||||
}
|
||||
|
||||
// PowerPC CPU features
|
||||
static uint32 ppc_cpu_features = 0;
|
||||
|
||||
enum {
|
||||
HWCAP_PPC_ALTIVEC = 1 << 0
|
||||
};
|
||||
|
||||
// Determine PowerPC CPU features
|
||||
DEFINE_INIT_SENTINEL(init_ppc_cpu_features);
|
||||
|
||||
static void init_ppc_cpu_features(void)
|
||||
{
|
||||
}
|
||||
|
||||
// Check for ppc feature VMX (Altivec)
|
||||
bool cpuinfo_check_altivec(void)
|
||||
{
|
||||
return ppc_cpu_features & HWCAP_PPC_ALTIVEC;
|
||||
}
|
||||
45
SheepShaver/src/kpx_cpu/src/utils/utils-cpuinfo.hpp
Normal file
45
SheepShaver/src/kpx_cpu/src/utils/utils-cpuinfo.hpp
Normal file
|
|
@ -0,0 +1,45 @@
|
|||
/*
|
||||
* utils-cpuinfo.hpp - Processor capability information
|
||||
*
|
||||
* Kheperix (C) 2003-2005 Gwenole Beauchesne
|
||||
*
|
||||
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#ifndef UTILS_CPUINFO_H
|
||||
#define UTILS_CPUINFO_H
|
||||
|
||||
// Check for x86 feature CMOV
|
||||
extern bool cpuinfo_check_cmov(void);
|
||||
|
||||
// Check for x86 feature MMX
|
||||
extern bool cpuinfo_check_mmx(void);
|
||||
|
||||
// Check for x86 feature SSE
|
||||
extern bool cpuinfo_check_sse(void);
|
||||
|
||||
// Check for x86 feature SSE2
|
||||
extern bool cpuinfo_check_sse2(void);
|
||||
|
||||
// Check for x86 feature SSE3
|
||||
extern bool cpuinfo_check_sse3(void);
|
||||
|
||||
// Check for x86 feature SSE4
|
||||
extern bool cpuinfo_check_sse4(void);
|
||||
|
||||
// Check for ppc feature VMX (Altivec)
|
||||
extern bool cpuinfo_check_altivec(void);
|
||||
|
||||
#endif /* UTILS_CPUINFO_H */
|
||||
47
SheepShaver/src/kpx_cpu/src/utils/utils-sentinel.hpp
Normal file
47
SheepShaver/src/kpx_cpu/src/utils/utils-sentinel.hpp
Normal file
|
|
@ -0,0 +1,47 @@
|
|||
/*
|
||||
* utils-sentinel.hpp - Helper functions for program initialization and termination
|
||||
*
|
||||
* Kheperix (C) 2003-2005 Gwenole Beauchesne
|
||||
*
|
||||
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#ifndef UTILS_SENTINEL_H
|
||||
#define UTILS_SENTINEL_H
|
||||
|
||||
class program_sentinel {
|
||||
void (*fini)(void);
|
||||
public:
|
||||
program_sentinel(void (*init_func)(void) = 0, void (*exit_func)(void) = 0)
|
||||
: fini(exit_func)
|
||||
{ if (init_func) init_func(); }
|
||||
~program_sentinel()
|
||||
{ if (fini) fini(); }
|
||||
};
|
||||
|
||||
#define DEFINE_INIT_SENTINEL(FUNCTION) \
|
||||
static void FUNCTION(void); \
|
||||
static program_sentinel g_program_init_sentinel__##FUNCTION(FUNCTION)
|
||||
|
||||
#define DEFINE_EXIT_SENTINEL(FUNCTION) \
|
||||
static void FUNCTION(void); \
|
||||
static program_sentinel g_program_exit_sentinel__##FUNCTION(0, FUNCTION)
|
||||
|
||||
#define DEFINE_PROG_SENTINEL(FUNCTION) \
|
||||
static void init_##FUNCTION(void); \
|
||||
static void exit_##FUNCTION(void); \
|
||||
static program_sentinel g_program_sentinel_##FUNCTION(init_##FUNCTION, exit_##FUNCTION)
|
||||
|
||||
#endif /* UTILS_SENTINEL_H */
|
||||
Loading…
Reference in New Issue
Block a user