/* * Copyright (C) 2000 FSM Labs (http://www.fsmlabs.com/) *  Written by Cort Dougan <cort@fsmlabs.com> * */#ifndef __RTL_ARCH_TIME_H__#define __RTL_ARCH_TIME_H__extern unsigned long loops_per_sec;typedef long hrtime_t; /* high-resolution time type (signed 64-bit) */static inline hrtime_t timespec_to_ns (const struct timespec *ts){	hrtime_t t;	t = (ts->tv_sec * NSECS_PER_SEC) + ts->tv_nsec;	return t;}static inline struct timespec timespec_from_ns (hrtime_t t){  	struct timespec ts;	ts.tv_sec = t/NSECS_PER_SEC;	ts.tv_nsec = t%NSECS_PER_SEC;	return ts;}#define rdtscl(x) __asm__ __volatile__ ("rpcc %0" : "=r" (x))extern hrtime_t gethrtime(void); /* time in nanoseconds since bootup */extern hrtime_t gethrtimeres(void); /* resolution of gethrtime() in ns */struct rtl_clock_arch {	int istimerset;	int count_irqs;};#define RTL_CLOCK_ARCH_INITIALIZER { 0, 0 }extern __inline__ void __delay(unsigned int loops){	int tmp;	__asm__ __volatile__(		"	rpcc %0\n"		"	addl %1,%0,%1\n"		"1:	rpcc %0\n"		"	subl %1,%0,%0\n"		"	bgt %0,1b"		: "=&r" (tmp), "=r" (loops) : "1"(loops));}static inline void rtl_delay(long nanoseconds){	nanoseconds *= ((1UL << 32) / 10000000) * loops_per_sec;	__delay((long)nanoseconds >> 32);}#endif