1 /* $NetBSD: cpu.c,v 1.12 2022/03/03 06:27:03 riastradh Exp $ */
2
3 /*
4 * Copyright (c) 1994, 1995 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
22 * School of Computer Science
23 * Carnegie Mellon University
24 * Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29
30 #include <sys/cdefs.h>
31 __KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.12 2022/03/03 06:27:03 riastradh Exp $");
32
33 #include <sys/param.h>
34 #include <sys/device.h>
35 #include <sys/cpu.h>
36 #include <sys/systm.h>
37
38 #include <machine/autoconf.h>
39
40 #include <mips/locore.h>
41
42 /* Definition of the driver for autoconfig. */
43 static int cpumatch(device_t, cfdata_t, void *);
44 static void cpuattach(device_t, device_t, void *);
45
46 CFATTACH_DECL_NEW(cpu, 0,
47 cpumatch, cpuattach, NULL, NULL);
48
49 extern struct cfdriver cpu_cd;
50
51 static int
cpumatch(device_t parent,cfdata_t cfdata,void * aux)52 cpumatch(device_t parent, cfdata_t cfdata, void *aux)
53 {
54 struct confargs *ca = aux;
55
56 /* make sure that we're looking for a CPU. */
57 if (strcmp(ca->ca_name, cpu_cd.cd_name) != 0) {
58 return 0;
59 }
60 return 1;
61 }
62
63 static void
cpuattach(device_t parent,device_t self,void * aux)64 cpuattach(device_t parent, device_t self, void *aux)
65 {
66 struct cpu_info * const ci = curcpu();
67
68 ci->ci_dev = self;
69 device_set_private(self, ci);
70
71 aprint_normal(": ");
72 cpu_identify(self);
73 }
74