X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=arch%2Farch-x86_64.h;h=6dbeee06a6ed2999de25909287b6431828b30107;hb=2f68124f26e54233db41b462a257dabc48e5c32b;hp=a8f075a00a5656079f0a5107accad2eff34c0cd0;hpb=6164890e4db96c073274990edca12706e9c41659;p=fio.git

diff --git a/arch/arch-x86_64.h b/arch/arch-x86_64.h
index a8f075a0..6dbeee06 100644
--- a/arch/arch-x86_64.h
+++ b/arch/arch-x86_64.h
@@ -30,13 +30,25 @@
 #define FIO_HAVE_SYSLET
 
 #define nop		__asm__ __volatile__("rep;nop": : :"memory")
-#define read_barrier()	asm volatile("lfence":::"memory")
+#define read_barrier()	__asm__ __volatile__("lfence":::"memory")
+#define write_barrier()	__asm__ __volatile__("sfence":::"memory")
 
 static inline unsigned int arch_ffz(unsigned int bitmask)
 {
 	__asm__("bsfl %1,%0" :"=r" (bitmask) :"r" (~bitmask));
 	return bitmask;
 }
-//#define ARCH_HAVE_FFZ
+
+static inline unsigned long long get_cpu_clock(void)
+{
+	unsigned int lo, hi;
+
+	__asm__ __volatile__("rdtsc" : "=a" (lo), "=d" (hi));
+	return ((unsigned long long) hi << 32ULL) | lo;
+}
+
+#define ARCH_HAVE_FFZ
+#define ARCH_HAVE_SSE4_2
+#define ARCH_HAVE_CPU_CLOCK
 
 #endif