74 lines
2.7 KiB
C
74 lines
2.7 KiB
C
/*
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* Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
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* The President and Fellows of Harvard College.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _MAINBUS_H_
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#define _MAINBUS_H_
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/*
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* Abstract system bus interface.
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*/
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struct cpu; /* from <cpu.h> */
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struct trapframe; /* from <machine/trapframe.h> */
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/* Initialize the system bus and probe and attach hardware devices. */
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void mainbus_bootstrap(void);
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/* Start up secondary CPUs, once their cpu structures are set up */
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void mainbus_start_cpus(void);
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/* Bus-level interrupt handler, called from cpu-level trap/interrupt code */
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void mainbus_interrupt(struct trapframe *);
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/* Find the size of main memory. */
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/* XXX this interface is not adequately MI */
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size_t mainbus_ramsize(void);
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/* Switch on an inter-processor interrupt. (Low-level.) */
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void mainbus_send_ipi(struct cpu *target);
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/* Request breaking into the debugger, where available. */
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void mainbus_debugger(void);
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/*
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* The various ways to shut down the system. (These are very low-level
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* and should generally not be called directly - md_poweroff, for
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* instance, unceremoniously turns the power off without doing
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* anything else.)
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*/
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void mainbus_halt(void);
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void mainbus_poweroff(void);
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void mainbus_reboot(void);
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void mainbus_panic(void);
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#endif /* _MAINBUS_H_ */
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