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/*
* (C) Finite State Machine Labs Inc. 2000 business@fsmlabs.com
*
* Released under the terms of GPL 2.
* Open RTLinux makes use of a patented process described in
* US Patent 5,995,745. Use of this process is governed
* by the Open RTLinux Patent License which can be obtained from
* www.fsmlabs.com/PATENT or by sending email to
* licensequestions@fsmlabs.com
*/
#ifndef __RTL_ARCH_TIME_H__
#define __RTL_ARCH_TIME_H__
extern unsigned long loops_per_sec;
#include <asm/types.h>
typedef __s64 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) x=read_32bit_cp0_register(CP0_COUNT)
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;
hrtime_t time;
};
#define RTL_CLOCK_ARCH_INITIALIZER { 0, 0 }
/* __delay originally from include/asm-mips/delay.h
* -Nathan <npsimons@fsmlabs.com> */
extern __inline__ void __delay(unsigned long loops)
{
__asm__ __volatile__(".set\tnoreorder\n"
"1:\tbnez\t%0,1b\n\t"
"subu\t%0,1\n\t"
".set\treorder":"=r"(loops):"0"(loops));
}
static inline void rtl_delay(long nanoseconds)
{
}
#endif
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