#define read_barrier() asm volatile("bcr 15,0" : : : "memory")
#define write_barrier() asm volatile("bcr 15,0" : : : "memory")
+/*
+ * Fio needs monotonic (never lower), but not strict monotonic (never the same)
+ * so store clock fast is enough
+ */
+static inline unsigned long long get_cpu_clock(void)
+{
+ unsigned long long clk;
+
+ __asm__ __volatile__("stckf %0" : "=Q" (clk) : : "cc");
+ return clk>>12;
+}
+
+#define ARCH_CPU_CLOCK_CYCLES_PER_USEC 1
+#define ARCH_HAVE_CPU_CLOCK
+
+#define ARCH_HAVE_INIT
+extern int tsc_reliable;
+static inline int arch_init(char *envp[])
+{
+ tsc_reliable = 1;
+ return 0;
+}
+
#endif