#define FIO_ARCH (arch_s390)
-#ifndef __NR_ioprio_set
-#define __NR_ioprio_set 282
-#define __NR_ioprio_get 283
-#endif
-
-#ifndef __NR_fadvise64
-#define __NR_fadvise64 253
-#endif
-
-#ifndef __NR_sys_splice
-#define __NR_sys_splice 306
-#define __NR_sys_tee 308
-#define __NR_sys_vmsplice 309
-#endif
-
-#define nop asm volatile ("diag 0,0,68" : : : "memory")
+#define nop asm volatile("nop" : : : "memory")
#define read_barrier() asm volatile("bcr 15,0" : : : "memory")
#define write_barrier() asm volatile("bcr 15,0" : : : "memory")
{
unsigned long long clk;
+#ifdef CONFIG_S390_Z196_FACILITIES
+ /*
+ * Fio needs monotonic (never lower), but not strict monotonic (never
+ * the same) so store clock fast is enough.
+ */
+ __asm__ __volatile__("stckf %0" : "=Q" (clk) : : "cc");
+#else
__asm__ __volatile__("stck %0" : "=Q" (clk) : : "cc");
- return clk;
+#endif
+ return clk>>12;
}
+#define ARCH_CPU_CLOCK_CYCLES_PER_USEC 1
+#define ARCH_HAVE_CPU_CLOCK
+#undef ARCH_CPU_CLOCK_WRAPS
+
#define ARCH_HAVE_INIT
extern int tsc_reliable;
static inline int arch_init(char *envp[])
return 0;
}
-#define ARCH_HAVE_CPU_CLOCK
-
#endif