X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=arch%2Farch-x86.h;h=1ededd845a869b8751c64ed0a06e5bd41aad3273;hp=b9249eae6f449d4f04e6fc2e6f25873eb9763527;hb=45054cbec0e624de3b79a795d7dfe1c64cdea934;hpb=69ebbd397e80b23ec4281c99e9f7242a089cc771 diff --git a/arch/arch-x86.h b/arch/arch-x86.h index b9249eae..1ededd84 100644 --- a/arch/arch-x86.h +++ b/arch/arch-x86.h @@ -1,7 +1,7 @@ #ifndef ARCH_X86_H #define ARCH_X86_H -#define ARCH (arch_i386) +#define FIO_ARCH (arch_i386) #ifndef __NR_ioprio_set #define __NR_ioprio_set 289 @@ -38,37 +38,16 @@ static inline unsigned long arch_ffz(unsigned long bitmask) __asm__("bsfl %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; - - __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"); -} + unsigned long ret; -static inline void spin_unlock(spinlock_t *lock) -{ - __asm__ __volatile__("incb %0" - : "+m" (lock->lock) - : - : "memory", "cc"); + __asm__ __volatile__("rdtsc" : "=A" (ret)); + return ret; } -#define __SPIN_LOCK_UNLOCKED { 0 } +#define ARCH_HAVE_FFZ +#define ARCH_HAVE_CPU_CLOCK #endif