implement get_cpu_clock() for s390/s390x

[fio.git] / arch / arch-s390.h

diff --git a/arch/arch-s390.h b/arch/arch-s390.h
index ed5d462d1d969b7e2db4cb994a88115813b24b44..bcd91636d04d8e6e3bd2137672377f84813cd57e 100644 (file)
--- a/arch/arch-s390.h
+++ b/arch/arch-s390.h
@@ -1,7 +1,7 @@
 #ifndef ARCH_S390_H
 #define ARCH_S390_H
 
-#define ARCH   (arch_s390)
+#define FIO_ARCH       (arch_s390)
 
 #ifndef __NR_ioprio_set
 #define __NR_ioprio_set                282
@@ -12,7 +12,32 @@
 #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 fio_ffz(v)     generic_ffz((v))
+#define read_barrier() asm volatile("bcr 15,0" : : : "memory")
+#define write_barrier()        asm volatile("bcr 15,0" : : : "memory")
+
+static inline unsigned long long get_cpu_clock(void)
+{
+       unsigned long long clk;
+
+       __asm__ __volatile__("stck %0" : "=Q" (clk) : : "cc");
+       return clk;
+}
+
+#define ARCH_HAVE_INIT
+extern int tsc_reliable;
+static inline int arch_init(char *envp[])
+{
+       tsc_reliable = 1;
+       return 0;
+}
+
+#define ARCH_HAVE_CPU_CLOCK
 
 #endif