X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=arch%2Farch-x86_64.h;h=d8b0933bdadda5e3c7c076b176d9655022bf93ec;hb=2a988d8bcb447eb098fc382835cc507587c6ba66;hp=71ba2240180f8937182725812529782f58dd8873;hpb=61a179a8fa701a2f5e9cd92b78ccc98f96b9f1d4;p=fio.git diff --git a/arch/arch-x86_64.h b/arch/arch-x86_64.h index 71ba2240..d8b0933b 100644 --- a/arch/arch-x86_64.h +++ b/arch/arch-x86_64.h @@ -1,7 +1,9 @@ #ifndef ARCH_X86_64_h #define ARCH_X86_64_h -#define ARCH (arch_x86_64) +#include "arch-x86-common.h" + +#define FIO_ARCH (arch_x86_64) #ifndef __NR_ioprio_set #define __NR_ioprio_set 251 @@ -33,42 +35,22 @@ #define read_barrier() __asm__ __volatile__("lfence":::"memory") #define write_barrier() __asm__ __volatile__("sfence":::"memory") -static inline unsigned int arch_ffz(unsigned int bitmask) +static inline unsigned long arch_ffz(unsigned long bitmask) { - __asm__("bsfl %1,%0" :"=r" (bitmask) :"r" (~bitmask)); + __asm__("bsf %1,%0" :"=r" (bitmask) :"r" (~bitmask)); return bitmask; } -#define ARCH_HAVE_FFZ -typedef struct { - unsigned int lock; -} spinlock_t; - -static inline void spin_lock(spinlock_t *lock) +static inline unsigned long long get_cpu_clock(void) { - short inc = 0x0100; + unsigned int lo, hi; - __asm__ __volatile__("xaddw %w0, %1\n" - "1:\t" - "cmpb %h0, %b0\n\t" - "je 2f\n\t" - "rep ; nop\n\t" - "movb %1, %b0\n\t" - "jmp 1b\n" - "2:" - : "+Q" (inc), "+m" (lock->lock) - : - : "memory", "cc"); + __asm__ __volatile__("rdtsc" : "=a" (lo), "=d" (hi)); + return ((unsigned long long) hi << 32ULL) | lo; } -static inline void spin_unlock(spinlock_t *lock) -{ - __asm__ __volatile__("incb %0" - : "+m" (lock->lock) - : - : "memory", "cc"); -} - -#define __SPIN_LOCK_UNLOCKED { 0 } +#define ARCH_HAVE_FFZ +#define ARCH_HAVE_SSE4_2 +#define ARCH_HAVE_CPU_CLOCK #endif