/*-
* Copyright (c) 2003-2004 Juli Mallett. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_HWFUNC_H_
#define _MACHINE_HWFUNC_H_
#include <sys/_cpuset.h>
struct timecounter;
/*
* Hooks downward into platform functionality.
*/
void platform_reset(void);
void platform_start(__register_t, __register_t, __register_t, __register_t);
/* For clocks and ticks and such */
void platform_initclocks(void);
uint64_t platform_get_frequency(void);
unsigned platform_get_timecount(struct timecounter *);
/* For hardware specific CPU initialization */
void platform_cpu_init(void);
#ifdef SMP
/*
* Spin up the AP so that it starts executing MP bootstrap entry point: mpentry
*
* Returns 0 on sucess and non-zero on failure.
*/
int platform_start_ap(int processor_id);
/*
* Platform-specific initialization that needs to be done when an AP starts
* running. This function is called from the MP bootstrap code in mpboot.S
*/
void platform_init_ap(int processor_id);
/*
* Return a plaform-specific interrrupt number that is used to deliver IPIs.
*
* This hardware interrupt is used to deliver IPIs exclusively and must
* not be used for any other interrupt source.
*/
int platform_ipi_intrnum(void);
/*
* Trigger a IPI interrupt on 'cpuid'.
*/
void platform_ipi_send(int cpuid);
/*
* Quiesce the IPI interrupt source on the current cpu.
*/
void platform_ipi_clear(void);
/*
* Return the processor id.
*
* Note that this function is called in early boot when stack is not available.
*/
extern int platform_processor_id(void);
/*
* Return the cpumask of available processors.
*/
extern void platform_cpu_mask(cpuset_t *mask);
/*
* Return the topology of processors on this platform
*/
struct cpu_group *platform_smp_topo(void);
#endif /* SMP */
#endif /* !_MACHINE_HWFUNC_H_ */
