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crime.c revision 1.11 
      1 /*	$NetBSD: crime.c,v 1.11 2003/01/10 20:39:22 rafal 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 #include <sgimips/dev/macereg.h>
     53 #include <sgimips/dev/crimereg.h>
     54 
     55 #include "locators.h"
     56 
     57 static int	crime_match(struct device *, struct cfdata *, void *);
     58 static void	crime_attach(struct device *, struct device *, void *);
     59 void *		crime_intr_establish(int, int, int, int (*)(void *), void *);
     60 void		crime_intr(u_int);
     61 
     62 CFATTACH_DECL(crime, sizeof(struct device),
     63     crime_match, crime_attach, NULL, NULL);
     64 
     65 #define CRIME_NINTR 32 	/* XXX */
     66 
     67 struct {
     68 	int	(*func)(void *);
     69 	void	*arg;
     70 } crime[CRIME_NINTR];
     71 
     72 static int
     73 crime_match(parent, match, aux)
     74 	struct device *parent;
     75 	struct cfdata *match;
     76 	void *aux;
     77 {
     78 
     79 	/*
     80 	 * The CRIME is in the O2.
     81 	 */
     82 	if (mach_type == MACH_SGI_IP32)
     83 		return (1);
     84 
     85 	return (0);
     86 }
     87 
     88 static void
     89 crime_attach(parent, self, aux)
     90 	struct device *parent;
     91 	struct device *self;
     92 	void *aux;
     93 {
     94 	struct mainbus_attach_args *ma = aux;
     95 	u_int64_t crm_id;
     96 
     97 	crm_id = bus_space_read_8(ma->ma_iot, ma->ma_ioh, 0);
     98 
     99 	aprint_naive(": system ASIC");
    100 
    101 	switch ((crm_id & CRIME_ID_IDBITS) >> CRIME_ID_IDSHIFT) {
    102 	case 0x0b:
    103 		aprint_normal(": rev 1.5");
    104 		break;
    105 
    106 	case 0x0a:
    107 		if ((crm_id >> 32) == 0)
    108 			aprint_normal(": rev 1.1");
    109 		else if ((crm_id >> 32) == 1)
    110 			aprint_normal(": rev 1.3");
    111 		else
    112 			aprint_normal(": rev 1.4");
    113 		break;
    114 
    115 	case 0x00:
    116 		aprint_normal(": Petty CRIME");
    117 		break;
    118 
    119 	default:
    120 		aprint_normal(": Unknown CRIME");
    121 		break;
    122 	}
    123 
    124 	aprint_normal(" (CRIME_ID: %llx)\n", crm_id);
    125 
    126 	/* All interrupts off.  Turned on as we register devices */
    127 	*(volatile u_int64_t *)MIPS_PHYS_TO_KSEG1(CRIME_INTMASK) = 0;
    128 	*(volatile u_int64_t *)MIPS_PHYS_TO_KSEG1(CRIME_INTSTAT) = 0;
    129 	*(volatile u_int64_t *)MIPS_PHYS_TO_KSEG1(CRIME_SOFTINT) = 0;
    130 	*(volatile u_int64_t *)MIPS_PHYS_TO_KSEG1(CRIME_HARDINT) = 0;
    131 	*(volatile u_int32_t *)MIPS_PHYS_TO_KSEG1(MACE_ISA_INT_STATUS) = 0;
    132 	*(volatile u_int32_t *)MIPS_PHYS_TO_KSEG1(MACE_ISA_INT_MASK) = 0;
    133 }
    134 
    135 /*
    136  * XXX: sharing interrupts?
    137  */
    138 
    139 void *
    140 crime_intr_establish(irq, type, level, func, arg)
    141 	int irq;
    142 	int type;
    143 	int level;
    144 	int (*func)(void *);
    145 	void *arg;
    146 {
    147 	if (crime[irq].func != NULL)
    148 		return NULL;	/* panic("Cannot share CRIME interrupts!"); */
    149 
    150 	crime[irq].func = func;
    151 	crime[irq].arg = arg;
    152 
    153 	return (void *)&crime[irq];
    154 }
    155 
    156 void
    157 crime_intr(pendmask)
    158 	u_int pendmask;
    159 {
    160 	int i;
    161 
    162 	for (i = 0; i < CRIME_NINTR; i++) {
    163 		if ((pendmask & (1 << i)) && crime[i].func != NULL)
    164 			(*crime[i].func)(crime[i].arg);
    165 	}
    166 }
    167 
    168