1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/machsystm.h> 30 #include <sys/cpu_module.h> 31 #include <sys/dtrace.h> 32 #include <sys/cpu_sgnblk_defs.h> 33 34 /* 35 * Useful for disabling MP bring-up for an MP capable kernel 36 * (a kernel that was built with MP defined) 37 */ 38 int use_mp = 1; /* set to come up mp */ 39 40 /* 41 * Init CPU info - get CPU type info for processor_info system call. 42 */ 43 void 44 init_cpu_info(struct cpu *cp) 45 { 46 processor_info_t *pi = &cp->cpu_type_info; 47 int cpuid = cp->cpu_id; 48 struct cpu_node *cpunode = &cpunodes[cpuid]; 49 char buf[CPU_IDSTRLEN]; 50 51 cp->cpu_fpowner = NULL; /* not used for V9 */ 52 53 /* 54 * Get clock-frequency property from cpunodes[] for the CPU. 55 */ 56 pi->pi_clock = (cpunode->clock_freq + 500000) / 1000000; 57 58 (void) strcpy(pi->pi_processor_type, "sparcv9"); 59 (void) strcpy(pi->pi_fputypes, "sparcv9"); 60 61 (void) snprintf(buf, sizeof (buf), 62 "%s (cpuid %d clock %d MHz)", 63 cpunode->name, cpunode->cpuid, pi->pi_clock); 64 65 cp->cpu_idstr = kmem_alloc(strlen(buf) + 1, KM_SLEEP); 66 (void) strcpy(cp->cpu_idstr, buf); 67 68 cmn_err(CE_CONT, "?cpu%d: %s\n", cpuid, cp->cpu_idstr); 69 70 cp->cpu_brandstr = kmem_alloc(strlen(cpunode->name) + 1, KM_SLEEP); 71 (void) strcpy(cp->cpu_brandstr, cpunode->name); 72 73 /* 74 * StarFire requires the signature block stuff setup here 75 */ 76 CPU_SGN_MAPIN(cpuid); 77 if (cpuid == cpu0.cpu_id) { 78 /* 79 * cpu0 starts out running. Other cpus are 80 * still in OBP land and we will leave them 81 * alone for now. 82 */ 83 CPU_SIGNATURE(OS_SIG, SIGST_RUN, SIGSUBST_NULL, cpuid); 84 #ifdef lint 85 cpuid = cpuid; 86 #endif /* lint */ 87 } 88 } 89 90 /* ARGSUSED */ 91 /* 92 * Routine used to cleanup a CPU that has been powered off. This will 93 * destroy all per-cpu information related to this cpu. 94 */ 95 int 96 mp_cpu_unconfigure(int cpuid) 97 { 98 return (0); 99 } 100 101 /* ARGSUSED */ 102 int 103 mp_find_cpu(dev_info_t *dip, void *arg) 104 { 105 return (0); 106 } 107 108 /* ARGSUSED */ 109 /* 110 * Routine used to setup a newly inserted CPU in preparation for starting 111 * it running code. 112 */ 113 int 114 mp_cpu_configure(int cpuid) 115 { 116 return (0); 117 } 118