| /* |
| * include/asm-s390/timex.h |
| * |
| * S390 version |
| * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation |
| * |
| * Derived from "include/asm-i386/timex.h" |
| * Copyright (C) 1992, Linus Torvalds |
| */ |
| |
| #ifndef _ASM_S390_TIMEX_H |
| #define _ASM_S390_TIMEX_H |
| |
| #define CLOCK_TICK_RATE 1193180 /* Underlying HZ */ |
| #define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */ |
| #define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \ |
| (1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \ |
| << (SHIFT_SCALE-SHIFT_HZ)) / HZ) |
| |
| typedef unsigned long long cycles_t; |
| |
| extern cycles_t cacheflush_time; |
| |
| static inline cycles_t get_cycles(void) |
| { |
| cycles_t cycles; |
| |
| __asm__("stck 0(%0)" : : "a" (&(cycles)) : "memory", "cc"); |
| return cycles >> 2; |
| } |
| |
| static inline unsigned long long get_clock (void) |
| { |
| unsigned long long clock; |
| |
| __asm__("stck 0(%0)" : : "a" (&(clock)) : "memory", "cc"); |
| return clock; |
| } |
| |
| #define vxtime_lock() do {} while (0) |
| #define vxtime_unlock() do {} while (0) |
| |
| #endif |