1 /* $OpenBSD: cpu.c,v 1.7 2024/11/05 18:58:59 miod Exp $ */ 2 /* $NetBSD: cpu.c,v 1.8 2006/01/02 23:16:20 uwe Exp $ */ 3 4 /*- 5 * Copyright (c) 2002 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/proc.h> 33 #include <sys/device.h> 34 35 #include <sh/cpu.h> 36 #include <sh/clock.h> 37 #include <sh/cache.h> 38 #include <sh/mmu.h> 39 40 #include <machine/autoconf.h> 41 42 int cpu_match(struct device *, void *, void *); 43 void cpu_attach(struct device *, struct device *, void *); 44 45 const struct cfattach cpu_ca = { 46 sizeof(struct device), cpu_match, cpu_attach 47 }; 48 49 struct cfdriver cpu_cd = { 50 NULL, "cpu", DV_DULL 51 }; 52 53 struct cpu_info cpu_info_store; 54 55 int 56 cpu_match(struct device *parent, void *vcf, void *aux) 57 { 58 struct mainbus_attach_args *ma = aux; 59 60 if (strcmp(ma->ma_name, cpu_cd.cd_name) != 0) 61 return (0); 62 63 return (1); 64 } 65 66 void 67 cpu_attach(struct device *parent, struct device *self, void *aux) 68 { 69 extern char cpu_model[120]; 70 71 #define MHZ(x) ((x) / 1000000), (((x) % 1000000) / 1000) 72 printf(": HITACHI %s %d.%02d MHz PCLOCK %d.%02d MHz\n", 73 cpu_model, MHZ(sh_clock_get_cpuclock()), 74 MHZ(sh_clock_get_pclock())); 75 #undef MHZ 76 sh_cache_information(); 77 sh_mmu_information(); 78 } 79 80 void 81 need_resched(struct cpu_info *ci) 82 { 83 ci->ci_want_resched = 1; 84 85 if (ci->ci_curproc) 86 aston(ci->ci_curproc); 87 } 88