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Use 64-bit compatible rdtsc for Linux. Remove some more intrin_x86 functions.

This commit is contained in:
Sacha 2014-08-27 18:49:44 +10:00
parent 999eb83de8
commit b47a4da81f
2 changed files with 15 additions and 20 deletions
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14
common/include/intrin_x86.h
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@ -99,20 +99,6 @@ static __inline__ __attribute__((always_inline)) unsigned long long __xgetbv(uns
return ((unsigned long long)edx << 32) | eax;
}
// gcc 4.8 define __rdtsc but unfortunately the compiler crash...
// The redefine allow to skip the gcc __rdtsc version -- Gregory
#ifdef __linux__
static __inline__ __attribute__((always_inline)) unsigned long long __pcsx2__rdtsc(void)
#else
static __inline__ __attribute__((always_inline)) unsigned long long __rdtsc(void)
#endif
{
unsigned long long retval;
__asm__ __volatile__("rdtsc" : "=A"(retval));
return retval;
}
/*** Interrupts ***/
#ifndef __linux__
static __inline__ __attribute__((always_inline)) void __debugbreak(void)

21
common/src/x86emitter/cpudetect.cpp
View File

@ -102,21 +102,30 @@ s64 x86capabilities::_CPUSpeedHz( u64 time ) const
// Align the cpu execution to a cpuTick boundary.
// GCC 4.8 has __rdtsc but apparently it causes a crash. Only known working on MSVC
do {
timeStart = GetCPUTicks();
#ifdef __linux__
startCycle = __pcsx2__rdtsc();
#else
#ifdef _MSC_VER
startCycle = __rdtsc();
#elif defined(_M_X86_64)
unsigned long long low, high;
__asm__ __volatile__("rdtsc" : "=a"(low), "=d"(high));
startCycle = low | (high << 32);
#else
__asm__ __volatile__("rdtsc" : "=A"(startCycle));
#endif
} while( GetCPUTicks() == timeStart );
do {
timeStop = GetCPUTicks();
#ifdef __linux__
endCycle = __pcsx2__rdtsc();
#else
#ifdef _MSC_VER
endCycle = __rdtsc();
#elif defined(_M_X86_64)
unsigned long long low, high;
__asm__ __volatile__("rdtsc" : "=a"(low), "=d"(high));
endCycle = low | (high << 32);
#else
__asm__ __volatile__("rdtsc" : "=A"(endCycle));
#endif
} while( ( timeStop - timeStart ) < time );