X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=arch%2Farch-x86.h;h=2e803cbe5ba13c96e2f377516dca6def34bc013f;hb=0408c206697a60255383a4412391e8375f290f11;hp=a396c850345ddc8cb90042b34d7d39c723aea4c8;hpb=8f7e39dd35a40d088a31f33f12402a1eaf31b2c4;p=fio.git

diff --git a/arch/arch-x86.h b/arch/arch-x86.h
index a396c850..2e803cbe 100644
--- a/arch/arch-x86.h
+++ b/arch/arch-x86.h
@@ -30,13 +30,24 @@
 #define FIO_HAVE_SYSLET
 
 #define nop		__asm__ __volatile__("rep;nop": : :"memory")
-#define read_barrier()	asm volatile ("": : :"memory")
+#define read_barrier()	__asm__ __volatile__("": : :"memory")
+#define write_barrier()	__asm__ __volatile__("": : :"memory")
 
 static inline unsigned long arch_ffz(unsigned long bitmask)
 {
 	__asm__("bsfl %1,%0" :"=r" (bitmask) :"r" (~bitmask));
 	return bitmask;
 }
+
+static inline unsigned long long get_cpu_clock(void)
+{
+	unsigned long ret;
+
+	__asm__ __volatile__("rdtsc" : "=A" (ret));
+	return ret;
+}
+
 #define ARCH_HAVE_FFZ
+#define ARCH_HAVE_CPU_CLOCK
 
 #endif