freebsd-dev/sys/amd64/include/clock.h
Peter Wemm 0d2a298904 Initial landing of SMP support for FreeBSD/amd64.
- This is heavily derived from John Baldwin's apic/pci cleanup on i386.
- I have completely rewritten or drastically cleaned up some other parts.
  (in particular, bootstrap)
- This is still a WIP.  It seems that there are some highly bogus bioses
  on nVidia nForce3-150 boards.  I can't stress how broken these boards
  are.  I have a workaround in mind, but right now the Asus SK8N is broken.
  The Gigabyte K8NPro (nVidia based) is also mind-numbingly hosed.
- Most of my testing has been with SCHED_ULE.  SCHED_4BSD works.
- the apic and acpi components are 'standard'.
- If you have an nVidia nForce3-150 board, you are stuck with 'device
  atpic' in addition, because they somehow managed to forget to connect the
  8254 timer to the apic, even though its in the same silicon!  ARGH!
  This directly violates the ACPI spec.
2003-11-17 08:58:16 +00:00

44 lines
884 B
C

/*
* Kernel interface to machine-dependent clock driver.
* Garrett Wollman, September 1994.
* This file is in the public domain.
*
* $FreeBSD$
*/
#ifndef _MACHINE_CLOCK_H_
#define _MACHINE_CLOCK_H_
#ifdef _KERNEL
/*
* i386 to clock driver interface.
* XXX large parts of the driver and its interface are misplaced.
*/
extern int adjkerntz;
extern int clkintr_pending;
extern int disable_rtc_set;
extern int pscnt;
extern int psdiv;
extern int statclock_disable;
extern u_int timer_freq;
extern int timer0_max_count;
extern uint64_t tsc_freq;
extern int tsc_is_broken;
extern int wall_cmos_clock;
/*
* Driver to clock driver interface.
*/
struct clockframe;
int acquire_timer2(int mode);
int release_timer2(void);
int rtcin(int val);
int sysbeep(int pitch, int period);
void init_TSC(void);
void init_TSC_tc(void);
#endif /* _KERNEL */
#endif /* !_MACHINE_CLOCK_H_ */