1 /*- 2 * Copyright (c) 2000 Doug Rabson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/ktr.h> 32 #include <sys/proc.h> 33 #include <sys/lock.h> 34 #include <sys/malloc.h> 35 #include <sys/mutex.h> 36 #include <sys/kernel.h> 37 #include <sys/smp.h> 38 39 #include <vm/vm.h> 40 #include <vm/pmap.h> 41 #include <vm/vm_map.h> 42 #include <sys/user.h> 43 #include <sys/dkstat.h> 44 45 #include <machine/atomic.h> 46 #include <machine/pmap.h> 47 #include <machine/clock.h> 48 49 int boot_cpu_id; 50 51 /* 52 * XXX: needs to move to machdep.c 53 * 54 * Initialise a struct globaldata. 55 */ 56 void 57 globaldata_init(struct globaldata *globaldata, int cpuno, size_t sz) 58 { 59 60 bzero(globaldata, sz); 61 globaldata->gd_idlepcbphys = vtophys((vm_offset_t) &globaldata->gd_idlepcb); 62 globaldata->gd_idlepcb.apcb_ksp = (u_int64_t) 63 ((caddr_t) globaldata + sz - sizeof(struct trapframe)); 64 globaldata->gd_idlepcb.apcb_ptbr = proc0.p_addr->u_pcb.pcb_hw.apcb_ptbr; 65 globaldata->gd_cpuno = cpuno; 66 globaldata->gd_other_cpus = all_cpus & ~(1 << cpuno); 67 globaldata->gd_next_asn = 0; 68 globaldata->gd_current_asngen = 1; 69 globaldata->gd_cpuid = cpuno; 70 globaldata_register(globaldata); 71 } 72 73 int 74 cpu_mp_probe(void) 75 { 76 return 0; 77 } 78 79 void 80 cpu_mp_start(void) 81 { 82 } 83 84 void 85 cpu_mp_announce(void) 86 { 87 } 88