0fb6b9a8f8
Rather than an "iointr" routine that decomposes a vector into an IRQ, we maintain a vector table directly, hooking up each "iointr" routine at the correct vector. This also allows us to hook device interrupts up to specific vectors (c.f. Jensen). We can shave even more cycles off, here, and I will, but it requires some changes to the alpha_shared_intr stuff.
106 lines
3.8 KiB
C
106 lines
3.8 KiB
C
/* $NetBSD: cpuconf.h,v 1.13 2001/07/27 00:25:19 thorpej Exp $ */
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/*
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Additional reworking by Matthew Jacob for NASA/Ames Research Center.
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* Copyright (c) 1997
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*/
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#ifndef _ALPHA_CPUCONF_H_
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#define _ALPHA_CPUCONF_H_
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/*
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* Platform Specific Information and Function Hooks.
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*
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* The tags family and model information are strings describing the platform.
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*
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* The tag iobus describes the primary iobus for the platform- primarily
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* to give a hint as to where to start configuring. The likely choices
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* are one of tcasic, lca, apecs, cia, or tlsb.
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*/
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struct clockframe;
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struct platform {
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/*
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* Platform Information.
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*/
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const char *family; /* Family Name */
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const char *model; /* Model (variant) Name */
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const char *iobus; /* Primary iobus name */
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/*
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* Platform Specific Function Hooks
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* cons_init - console initialization
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* device_register - boot configuration aid
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* clockintr - Clock Interrupt Handler
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* mcheck_handler - Platform Specific Machine Check Handler
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*/
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void (*cons_init)(void);
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void (*device_register)(struct device *, void *);
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void (*clockintr)(struct clockframe *);
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void (*mcheck_handler)(unsigned long, struct trapframe *,
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unsigned long, unsigned long);
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void (*powerdown)(void);
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};
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/*
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* There is an array of functions to initialize the platform structure.
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*
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* It's responsible for filling in the family, model_name and iobus
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* tags. It may optionally fill in the cons_init, device_register and
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* mcheck_handler tags.
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*
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* The iointr tag is filled in by set_iointr (in interrupt.c).
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* The clockintr tag is filled in by cpu_initclocks (in clock.c).
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*
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* nocpu is function to call when you can't figure what platform you're on.
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* There's no return from this function.
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*/
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struct cpuinit {
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void (*init)(void);
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u_int64_t systype;
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const char *option;
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};
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#ifdef _KERNEL
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#define cpu_notsupp(st, str) { platform_not_supported, st, str }
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#define cpu_init(st, fn, opt) { fn, st, opt }
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extern struct platform platform;
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extern const struct cpuinit *platform_lookup(int);
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extern void platform_not_configured(void);
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extern void platform_not_supported(void);
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#endif /* _KERNEL */
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#endif /* ! _ALPHA_CPUCONF_H_ */
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