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      1 /*	$NetBSD: cpu.c,v 1.21 2022/03/03 06:26:14 riastradh Exp $	*/
      2 /*	$OpenBSD: cpu.c,v 1.8 1997/04/19 17:19:41 pefo Exp $ */
      3 
      4 /*
      5  * Copyright (c) 1997 Per Fogelstrom
      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 under OpenBSD by
     18  *	Per Fogelstrom.
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
     23  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     24  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
     26  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  *
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 __KERNEL_RCSID(0, "$NetBSD: cpu.c,v 1.21 2022/03/03 06:26:14 riastradh Exp $");
     38 
     39 #include <sys/param.h>
     40 #include <sys/systm.h>
     41 #include <sys/proc.h>
     42 #include <sys/device.h>
     43 
     44 #include <uvm/uvm_extern.h>
     45 
     46 #include <mips/locore.h>
     47 
     48 #include <machine/autoconf.h>
     49 
     50 #include "ioconf.h"
     51 
     52 /* Definition of the driver for autoconfig. */
     53 static int	cpumatch(device_t, cfdata_t, void *);
     54 static void	cpuattach(device_t, device_t, void *);
     55 
     56 CFATTACH_DECL_NEW(cpu, 0,
     57     cpumatch, cpuattach, NULL, NULL);
     58 
     59 static int
     60 cpumatch(device_t parent, cfdata_t cf, void *aux)
     61 {
     62 	struct confargs *ca = aux;
     63 
     64 	/* make sure that we're looking for a CPU. */
     65 	if (strcmp(ca->ca_name, cpu_cd.cd_name) != 0)
     66 		return 0;
     67 
     68 	return 1;
     69 }
     70 
     71 static void
     72 cpuattach(device_t parent, device_t self, void *aux)
     73 {
     74 	struct cpu_info * const ci = curcpu();
     75 
     76 	ci->ci_dev = self;
     77 	device_set_private(self, ci);
     78 
     79 	aprint_normal(": ");
     80 
     81 	cpu_identify(self);
     82 }
     83