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      1 /*	$NetBSD: cpuconf.h,v 1.17 2020/10/14 00:59:50 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *      This product includes software developed by Christopher G. Demetriou
     17  *	for the NetBSD Project.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 /*
     33  * Additional reworking by Matthew Jacob for NASA/Ames Research Center.
     34  * Copyright (c) 1997
     35  */
     36 
     37 #ifndef	_ALPHA_CPUCONF_H_
     38 #define	_ALPHA_CPUCONF_H_
     39 
     40 /*
     41  * Platform Specific Information and Function Hooks.
     42  *
     43  * The tags family and model information are strings describing the platform.
     44  *
     45  * The tag iobus describes the primary iobus for the platform- primarily
     46  * to give a hint as to where to start configuring. The likely choices
     47  * are one of tcasic, lca, apecs, cia, or tlsb.
     48  */
     49 
     50 struct clockframe;
     51 
     52 struct platform {
     53 	/*
     54 	 * Platform Information.
     55 	 */
     56 	const char	*family;	/* Family Name */
     57 	const char	*model;		/* Model (variant) Name */
     58 	const char	*iobus;		/* Primary iobus name */
     59 
     60 	/*
     61 	 * Platform Specific Function Hooks
     62 	 *	cons_init 	-	console initialization
     63 	 *	device_register	-	boot configuration aid
     64 	 *	clockintr	-	Clock Interrupt Handler
     65 	 *	mcheck_handler	-	Platform Specific Machine Check Handler
     66 	 */
     67 	void	(*cons_init)(void);
     68 	void	(*device_register)(device_t, void *);
     69 	void	(*clockintr)(struct clockframe *);
     70 	void	(*mcheck_handler)(unsigned long, struct trapframe *,
     71 		    unsigned long, unsigned long);
     72 	void	(*powerdown)(void);
     73 	void	(*page_physload)(unsigned long, unsigned long);
     74 };
     75 
     76 /*
     77  * There is an array of functions to initialize the platform structure.
     78  *
     79  * It's responsible for filling in the family, model_name and iobus
     80  * tags. It may optionally fill in the cons_init, device_register and
     81  * mcheck_handler tags.
     82  *
     83  * The clockintr tag is filled in by cpu_initclocks (in clock.c).
     84  *
     85  * nocpu is function to call when you can't figure what platform you're on.
     86  * There's no return from this function.
     87  */
     88 
     89 struct cpuinit {
     90 	void	(*init)(void);
     91 	uint64_t systype;
     92 	const char *option;
     93 };
     94 
     95 #ifdef _KERNEL
     96 #define	cpu_notsupp(st, str)	{ platform_not_supported, st, str }
     97 
     98 #define	cpu_init(st, fn, opt)	{ fn, st, opt }
     99 
    100 extern struct platform platform;
    101 extern const struct cpuinit *platform_lookup(int);
    102 extern void platform_not_configured(void);
    103 extern void platform_not_supported(void);
    104 #endif /* _KERNEL */
    105 #endif /* ! _ALPHA_CPUCONF_H_ */
    106