1 /* $NetBSD: cpuvar.h,v 1.44 2011/06/12 03:35:50 rmind Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by RedBack Networks Inc. 9 * 10 * Author: Bill Sommerfeld 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * Copyright (c) 1999 Stefan Grefen 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the NetBSD 48 * Foundation, Inc. and its contributors. 49 * 4. Neither the name of The NetBSD Foundation nor the names of its 50 * contributors may be used to endorse or promote products derived 51 * from this software without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY 54 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR AND CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 */ 65 66 #ifndef _X86_CPUVAR_H_ 67 #define _X86_CPUVAR_H_ 68 69 struct cpu_functions { 70 int (*start)(struct cpu_info *, paddr_t); 71 int (*stop)(struct cpu_info *); 72 void (*cleanup)(struct cpu_info *); 73 }; 74 75 extern const struct cpu_functions mp_cpu_funcs; 76 77 #define CPU_ROLE_SP 0 78 #define CPU_ROLE_BP 1 79 #define CPU_ROLE_AP 2 80 81 struct cpu_attach_args { 82 int cpu_id; 83 int cpu_number; 84 int cpu_role; 85 const struct cpu_functions *cpu_func; 86 }; 87 88 struct cpufeature_attach_args { 89 struct cpu_info *ci; 90 const char *name; 91 }; 92 93 #ifdef _KERNEL 94 95 #if defined(_KERNEL_OPT) 96 #include "opt_multiprocessor.h" 97 #endif /* defined(_KERNEL_OPT) */ 98 99 extern uint32_t cpus_running; 100 101 int x86_ipi(int, int, int); 102 void x86_self_ipi(int); 103 int x86_ipi_init(int); 104 int x86_ipi_startup(int, int); 105 void x86_errata(void); 106 107 void identifycpu(struct cpu_info *); 108 void identifycpu_cpuids(struct cpu_info *); 109 void cpu_init(struct cpu_info *); 110 void cpu_init_tss(struct cpu_info *); 111 void cpu_init_first(void); 112 113 void x86_cpu_idle_init(void); 114 void x86_cpu_idle_halt(void); 115 void x86_cpu_idle_mwait(void); 116 #ifdef XEN 117 void x86_cpu_idle_xen(void); 118 #endif 119 120 void cpu_get_tsc_freq(struct cpu_info *); 121 void pat_init(struct cpu_info *); 122 123 extern int cpu_vendor; 124 extern bool x86_mp_online; 125 126 extern uint32_t cpu_feature[5]; 127 128 #endif /* _KERNEL */ 129 130 #endif /* !_X86_CPUVAR_H_ */ 131