1/* $NetBSD: cpuvar.h,v 1.53 2020/07/14 00:45:53 yamaguchi 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 69struct cpu_info; 70struct cpu_functions { 71#ifndef XENPV 72 int (*start)(struct cpu_info *, paddr_t); 73#else /* XENPV */ 74 int (*start)(struct cpu_info *, vaddr_t); 75#endif /* XENPV */ 76 int (*stop)(struct cpu_info *); 77 void (*cleanup)(struct cpu_info *); 78}; 79 80extern const struct cpu_functions mp_cpu_funcs; 81 82#define CPU_ROLE_SP 0 83#define CPU_ROLE_BP 1 84#define CPU_ROLE_AP 2 85 86struct cpu_attach_args { 87 int cpu_id; 88 int cpu_number; 89 int cpu_role; 90 const struct cpu_functions *cpu_func; 91}; 92 93struct cpufeature_attach_args { 94 struct cpu_info *ci; 95 const char *name; 96}; 97 98#ifdef _KERNEL 99#include <sys/kcpuset.h> 100#if defined(_KERNEL_OPT) 101#include "opt_multiprocessor.h" 102#include "opt_xen.h" 103#endif /* defined(_KERNEL_OPT) */ 104 105extern int (*x86_ipi)(int, int, int); 106int x86_ipi_init(int); 107int x86_ipi_startup(int, int); 108void x86_errata(void); 109 110void identifycpu(struct cpu_info *); 111void identifycpu_cpuids(struct cpu_info *); 112void cpu_init(struct cpu_info *); 113void cpu_init_tss(struct cpu_info *); 114void cpu_init_first(void); 115void cpu_init_idt(struct cpu_info *); 116 117void x86_cpu_idle_init(void); 118void x86_cpu_idle_halt(void); 119void x86_cpu_idle_mwait(void); 120#ifdef XEN 121void x86_cpu_idle_xen(void); 122#endif 123 124void cpu_get_tsc_freq(struct cpu_info *); 125void pat_init(struct cpu_info *); 126 127extern int cpu_vendor; 128extern bool x86_mp_online; 129 130extern uint32_t cpu_feature[7]; 131 132#endif /* _KERNEL */ 133 134#endif /* !_X86_CPUVAR_H_ */ 135