46 lines
1.0 KiB
C
46 lines
1.0 KiB
C
/*
|
|
* Garrett Wollman, September 1994.
|
|
* This file is in the public domain.
|
|
* Kernel interface to machine-dependent clock driver.
|
|
*
|
|
* JNPR: clock.h,v 1.6.2.1 2007/08/29 09:36:05 girish
|
|
* from: src/sys/alpha/include/clock.h,v 1.5 1999/12/29 04:27:55 peter
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_CLOCK_H_
|
|
#define _MACHINE_CLOCK_H_
|
|
|
|
#include <sys/bus.h>
|
|
|
|
#ifdef _KERNEL
|
|
|
|
extern int cpu_clock;
|
|
|
|
#define wall_cmos_clock 0
|
|
#define adjkerntz 0
|
|
|
|
/*
|
|
* Default is to assume a CPU pipeline clock of 100Mhz, and
|
|
* that CP0_COUNT increments every 2 cycles.
|
|
*/
|
|
#define MIPS_DEFAULT_HZ (100 * 1000 * 1000)
|
|
|
|
void mips_timer_early_init(uint64_t clock_hz);
|
|
void mips_timer_init_params(uint64_t, int);
|
|
|
|
extern uint64_t counter_freq;
|
|
extern int clocks_running;
|
|
|
|
/*
|
|
* The 'platform_timecounter' pointer may be used to register a
|
|
* platform-specific timecounter.
|
|
*
|
|
* A default timecounter based on the CP0 COUNT register is always registered.
|
|
*/
|
|
extern struct timecounter *platform_timecounter;
|
|
|
|
#endif
|
|
|
|
#endif /* !_MACHINE_CLOCK_H_ */
|