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      1 /*	$NetBSD: cpu.c,v 1.7 2011/07/01 20:47:43 dyoung Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by NONAKA Kimihiro.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/device.h>
     35 
     36 #include <machine/autoconf.h>
     37 #include <sys/bus.h>
     38 #include <machine/cpu.h>
     39 
     40 int cpumatch(device_t, cfdata_t, void *);
     41 void cpuattach(device_t, device_t, void *);
     42 
     43 struct cpu_softc {
     44 	device_t sc_dev;		/* device tree glue */
     45 	struct cpu_info *sc_info;	/* pointer to CPU info */
     46 };
     47 
     48 CFATTACH_DECL_NEW(cpu, sizeof(struct cpu_softc),
     49     cpumatch, cpuattach, NULL, NULL);
     50 
     51 extern struct cfdriver cpu_cd;
     52 
     53 int
     54 cpumatch(device_t parent, cfdata_t cfdata, void *aux)
     55 {
     56 	struct confargs *ca = aux;
     57 
     58 	if (strcmp(ca->ca_name, cpu_cd.cd_name) != 0)
     59 		return (0);
     60 	if (cpu_info[0].ci_dev != NULL)
     61 		return (0);
     62 	return (1);
     63 }
     64 
     65 void
     66 cpuattach(device_t parent, device_t self, void *aux)
     67 {
     68 	struct cpu_softc *sc = device_private(self);
     69 
     70 	sc->sc_dev = self;
     71 	sc->sc_info = cpu_attach_common(self, 0);
     72 }
     73