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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-s390/] [timex.h] - Rev 1765
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/* * 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 clk; __asm__("stck 0(%0)" : : "a" (&(clk)) : "memory", "cc"); return clk; } #define vxtime_lock() do {} while (0) #define vxtime_unlock() do {} while (0) #endif