X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=arch%2Farch-x86_64.h;h=f2dcf497f63ec89ca88c8c3817de407c7a1d80c9;hb=fd60bf3beb70b15e7fba31bbaea79e53638ccfe9;hp=c8c3d18251caf721fe25bef5c85b6c765d675ee3;hpb=edf2c6cf5adc82ee43c81e033cf2215eb9ffdb16;p=fio.git

diff --git a/arch/arch-x86_64.h b/arch/arch-x86_64.h
index c8c3d182..f2dcf497 100644
--- a/arch/arch-x86_64.h
+++ b/arch/arch-x86_64.h
@@ -33,40 +33,22 @@
 #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 ARCH_HAVE_FFZ
+#define ARCH_HAVE_SSE4_2
+#define ARCH_HAVE_CPU_CLOCK
 
 #endif