projects
/
fio.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
Fix end-of-job slowdown for random IO with a random map
[fio.git]
/
arch
/
arch-x86_64.h
diff --git
a/arch/arch-x86_64.h
b/arch/arch-x86_64.h
index 216e74e2e32a409d1d7bbee30aa38f771cafdb40..f2dcf497f63ec89ca88c8c3817de407c7a1d80c9 100644
(file)
--- a/
arch/arch-x86_64.h
+++ b/
arch/arch-x86_64.h
@@
-33,11
+33,22
@@
#define read_barrier() __asm__ __volatile__("lfence":::"memory")
#define write_barrier() __asm__ __volatile__("sfence":::"memory")
#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__("bsf
l
%1,%0" :"=r" (bitmask) :"r" (~bitmask));
+ __asm__("bsf %1,%0" :"=r" (bitmask) :"r" (~bitmask));
return bitmask;
}
return bitmask;
}
+
+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_FFZ
+#define ARCH_HAVE_SSE4_2
+#define ARCH_HAVE_CPU_CLOCK
#endif
#endif