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crime.c revision 1.5 
      1 /*	$NetBSD: crime.c,v 1.5 2002/03/13 13:12:26 simonb Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2000 Soren S. Jorvang
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *          This product includes software developed for the
     18  *          NetBSD Project.  See http://www.netbsd.org/ for
     19  *          information about NetBSD.
     20  * 4. The name of the author may not be used to endorse or promote products
     21  *    derived from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     33  */
     34 
     35 /*
     36  * O2 CRIME
     37  */
     38 
     39 #include <sys/param.h>
     40 #include <sys/device.h>
     41 #include <sys/systm.h>
     42 
     43 #include <machine/cpu.h>
     44 #include <machine/locore.h>
     45 #include <machine/autoconf.h>
     46 #include <machine/bus.h>
     47 #include <machine/intr.h>
     48 #include <machine/machtype.h>
     49 
     50 #include <dev/pci/pcivar.h>
     51 
     52 #if 0
     53 #include <sgimips/dev/crimereg.h>
     54 #endif
     55 
     56 #include "locators.h"
     57 
     58 static int	crime_match(struct device *, struct cfdata *, void *);
     59 static void	crime_attach(struct device *, struct device *, void *);
     60 void *		crime_intr_establish(int, int, int, int (*)(void *), void *);
     61 int		crime_intr(void *);
     62 
     63 struct cfattach crime_ca = {
     64 	sizeof(struct device), crime_match, crime_attach
     65 };
     66 
     67 static int
     68 crime_match(parent, match, aux)
     69 	struct device *parent;
     70 	struct cfdata *match;
     71 	void *aux;
     72 {
     73 
     74 	/*
     75 	 * The CRIME is in the O2.
     76 	 */
     77 	if (mach_type == MACH_SGI_IP32)
     78 		return (1);
     79 
     80 	return (0);
     81 }
     82 
     83 static void
     84 crime_attach(parent, self, aux)
     85 	struct device *parent;
     86 	struct device *self;
     87 	void *aux;
     88 {
     89 	struct mainbus_attach_args *ma = aux;
     90 	u_int32_t rev; /* really u_int64_t ! */
     91 	int major, minor;
     92 
     93 	rev = bus_space_read_4(ma->ma_iot, ma->ma_ioh, 4) & 0xff;
     94 
     95 	major = rev >> 4;
     96 	minor = rev & 0x0f;
     97 
     98 	if (major == 0 && minor == 0)
     99 		printf(": petty\n");
    100 	else
    101 		printf(": rev %d.%d\n", major, minor);
    102 
    103 #if 0
    104 	*(volatile u_int64_t *)0xb4000018 = 0xffffffffffffffff;
    105 #else
    106 	/* enable all mace interrupts, but no crime devices */
    107 	*(volatile u_int64_t *)0xb4000018 = 0x000000000000ffff;
    108 #endif
    109 }
    110 
    111 /*
    112  * XXX
    113  */
    114 
    115 #define CRIME_NINTR 32 	/* XXX */
    116 
    117 struct {
    118 	int	(*func)(void *);
    119 	void	*arg;
    120 } crime[CRIME_NINTR];
    121 
    122 void *
    123 crime_intr_establish(irq, type, level, func, arg)
    124 	int irq;
    125 	int type;
    126 	int level;
    127 	int (*func)(void *);
    128 	void *arg;
    129 {
    130 	int i;
    131 
    132 	for (i = 0; i <= CRIME_NINTR; i++) {
    133 		if (i == CRIME_NINTR)
    134 			panic("too many IRQs");
    135 
    136 		if (crime[i].func != NULL)
    137 			continue;
    138 
    139 		crime[i].func = func;
    140 		crime[i].arg = arg;
    141 		break;
    142 	}
    143 
    144 	return (void *)-1;
    145 }
    146 
    147 int
    148 crime_intr(arg)
    149 	void *arg;
    150 {
    151 	int i;
    152 
    153 	for (i = 0; i < CRIME_NINTR; i++) {
    154 int s;
    155 		if (crime[i].func == NULL)
    156 			return 0;
    157 
    158 s = spltty();
    159 		(*crime[i].func)(crime[i].arg);
    160 splx(s);
    161 	}
    162 
    163 	return 0;
    164 }
    165