freebsd-nq/sys/mips/include/clock.h

/*
 * 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;

extern uint32_t clockintr(uint32_t, struct trapframe *);

#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_ */
FreeBSD/mips port. The FreeBSD/mips port targets mips32, mips64, mips32r2 and mips64r2 (and close relatives) processors. There presently is support for ADMtek ADM5120, A mips 4Kc in a malta board, the RB533 routerboard (based on IDT RC32434) and some preliminary support for sibtye/broadcom designs. Other hardware support will be forthcomcing. This port boots multiuser under gxemul emulating the malta board and also bootstraps on the hardware whose support is forthcoming... Oleksandr Tymoshenko, Wojciech Koszek, Warner Losh, Olivier Houchard, Randall Stewert and others that have contributed to the mips2 and/or mips2-jnpr perforce branches. Juniper contirbuted a generic mips port late in the life cycle of the misp2 branch. Warner Losh merged the mips2 and Juniper code bases, and others list above have worked for the past several months to get to multiuser. In addition, the mips2 work owe a debt to the trail blazing efforts of the original mips branch in perforce done by Juli Mallett. 2008-04-13 07:27:37 +00:00			`/*`
			`* 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;`

Remove unused stuff from cpu.h. Move inappropriate stuff in cpu.h elsewhere: {s,g}et_intr_mask -> md_var.h num_tlbentries -> tlb.h Remove #define clockframe trapframe and fix clock, which was the only place this was used. All the rest of this stuff was unused. # we're not quite minimal yet, since we duplicate a few status register things # here... Inspired by: bde@ 2010-07-15 01:58:20 +00:00			`extern uint32_t clockintr(uint32_t, struct trapframe *);`
FreeBSD/mips port. The FreeBSD/mips port targets mips32, mips64, mips32r2 and mips64r2 (and close relatives) processors. There presently is support for ADMtek ADM5120, A mips 4Kc in a malta board, the RB533 routerboard (based on IDT RC32434) and some preliminary support for sibtye/broadcom designs. Other hardware support will be forthcomcing. This port boots multiuser under gxemul emulating the malta board and also bootstraps on the hardware whose support is forthcoming... Oleksandr Tymoshenko, Wojciech Koszek, Warner Losh, Olivier Houchard, Randall Stewert and others that have contributed to the mips2 and/or mips2-jnpr perforce branches. Juniper contirbuted a generic mips port late in the life cycle of the misp2 branch. Warner Losh merged the mips2 and Juniper code bases, and others list above have worked for the past several months to get to multiuser. In addition, the mips2 work owe a debt to the trail blazing efforts of the original mips branch in perforce done by Juli Mallett. 2008-04-13 07:27:37 +00:00
			`#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;`

Sibyte provides a 64-bit read-only counter that counts at half the processor frequency. This counter can be accessed coherently from both cores. Use this as the preferred timecounter for the SWARM kernels. The CP0 COUNT register is unusable as the timecounter on SMP platforms because the COUNT registers on different CPUs are not guaranteed to be in sync. 2010-03-20 05:49:06 +00:00			`/*`
			`* 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;`

FreeBSD/mips port. The FreeBSD/mips port targets mips32, mips64, mips32r2 and mips64r2 (and close relatives) processors. There presently is support for ADMtek ADM5120, A mips 4Kc in a malta board, the RB533 routerboard (based on IDT RC32434) and some preliminary support for sibtye/broadcom designs. Other hardware support will be forthcomcing. This port boots multiuser under gxemul emulating the malta board and also bootstraps on the hardware whose support is forthcoming... Oleksandr Tymoshenko, Wojciech Koszek, Warner Losh, Olivier Houchard, Randall Stewert and others that have contributed to the mips2 and/or mips2-jnpr perforce branches. Juniper contirbuted a generic mips port late in the life cycle of the misp2 branch. Warner Losh merged the mips2 and Juniper code bases, and others list above have worked for the past several months to get to multiuser. In addition, the mips2 work owe a debt to the trail blazing efforts of the original mips branch in perforce done by Juli Mallett. 2008-04-13 07:27:37 +00:00			`#endif`

			`#endif /* !_MACHINE_CLOCK_H_ */`