/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * Mach Operating System * Copyright (c) 1991,1990 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* */ #include <cpus.h> #include <mp_v1_1.h> #if NCPUS > 1 #include <types.h> #include <mach/machine.h> #include <kern/lock.h> #include <kern/cpu_data.h> #include <kern/processor.h> #include <kern/misc_protos.h> #include <kern/machine.h> #include <i386/db_machdep.h> #include <ddb/db_run.h> #include <i386/AT386/mp/mp.h> #include <i386/setjmp.h> #include <i386/misc_protos.h> int cpu_int_word[NCPUS]; extern void cpu_interrupt(int cpu); extern int get_ncpus(void); /* * Generate a clock interrupt on next running cpu * * Instead of having the master processor interrupt * all active processors, each processor in turn interrupts * the next active one. This avoids all slave processors * accessing the same R/W data simultaneously. */ void slave_clock(void) { } void i386_signal_cpus(int event) { } /*ARGSUSED*/ void init_ast_check( processor_t processor) { } void cause_ast_check( processor_t processor) { } /*ARGSUSED*/ kern_return_t cpu_start( int slot_num) { printf("cpu_start not implemented\n"); return (KERN_FAILURE); } int real_ncpus; int wncpu = -1; /* * Find out how many cpus will run */ void mp_probe_cpus(void) { int i; /* * get real number of cpus */ real_ncpus = get_ncpus(); if (wncpu <= 0) wncpu = NCPUS; /* * Ignore real number of cpus it if number of requested cpus * is smaller. * Keep it if number of requested cpu is null or larger. */ if (real_ncpus < wncpu) wncpu = real_ncpus; #if MP_V1_1 { extern void validate_cpus(int); /* * We do NOT have CPUS numbered contiguously. */ validate_cpus(wncpu); } #else for (i=0; i < wncpu; i++) machine_slot[i].is_cpu = TRUE; #endif } /* * invoke kdb on slave processors */ void remote_kdb(void) { } /* * Clear kdb interrupt */ void clear_kdb_intr(void) { } #else /* NCPUS > 1 */ int cpu_int_word[NCPUS]; #endif /* NCPUS > 1 */