40 lines
907 B
C
40 lines
907 B
C
#ifndef ARCH_X86_H
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#define ARCH_X86_H
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static inline void do_cpuid(unsigned int *eax, unsigned int *ebx,
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unsigned int *ecx, unsigned int *edx)
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{
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asm volatile("xchgl %%ebx, %1\ncpuid\nxchgl %%ebx, %1"
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: "=a" (*eax), "=r" (*ebx), "=c" (*ecx), "=d" (*edx)
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: "0" (*eax)
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: "memory");
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}
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#include "arch-x86-common.h"
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#define FIO_ARCH (arch_x86)
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#define FIO_HUGE_PAGE 4194304
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#define nop __asm__ __volatile__("rep;nop": : :"memory")
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#define read_barrier() __asm__ __volatile__("": : :"memory")
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#define write_barrier() __asm__ __volatile__("": : :"memory")
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static inline unsigned long arch_ffz(unsigned long bitmask)
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{
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__asm__("bsfl %1,%0" :"=r" (bitmask) :"r" (~bitmask));
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return bitmask;
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}
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static inline unsigned long long get_cpu_clock(void)
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{
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unsigned long long ret;
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__asm__ __volatile__("rdtsc" : "=A" (ret));
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return ret;
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}
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#define ARCH_HAVE_FFZ
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#define ARCH_HAVE_CPU_CLOCK
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#endif
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