sys/arch/x86/include/cpuvar.h

   1 /*      $NetBSD: cpuvar.h,v 1.30 2009/10/02 15:05:42 jmcneill 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_number;
  83         int cpu_role;
  84         const struct cpu_functions *cpu_func;
  85 };
  86
  87 #ifdef _KERNEL
  88
  89 #if defined(_KERNEL_OPT)
  90 #include "opt_multiprocessor.h"
  91 #include "opt_enhanced_speedstep.h"
  92 #ifndef XEN
  93 #include "opt_intel_coretemp.h"
  94 #include "opt_intel_odcm.h"
  95 #include "opt_via_c7temp.h"
  96 #endif
  97 #endif /* defined(_KERNEL_OPT) */
  98
  99 #ifdef MULTIPROCESSOR
 100 extern uint32_t cpus_running;
 101 #endif
 102
 103 int x86_ipi(int, int, int);
 104 void x86_self_ipi(int);
 105 int x86_ipi_init(int);
 106 int x86_ipi_startup(int, int);
 107 void x86_errata(void);
 108
 109 void identifycpu(struct cpu_info *);
 110 void identifycpu_cpuids(struct cpu_info *);
 111 void cpu_init(struct cpu_info *);
 112 void cpu_init_tss(struct cpu_info *);
 113 void cpu_init_first(void);
 114
 115 void x86_cpu_idle_init(void);
 116 void x86_cpu_idle_halt(void);
 117 void x86_cpu_idle_mwait(void);
 118 #ifdef XEN
 119 void x86_cpu_idle_xen(void);
 120 #endif
 121
 122 #ifdef VIA_C7TEMP
 123 void viac7temp_register(struct cpu_info *);
 124 #endif
 125
 126 #ifdef INTEL_CORETEMP
 127 void coretemp_register(struct cpu_info *);
 128 #endif
 129
 130 #ifdef INTEL_ONDEMAND_CLOCKMOD
 131 void clockmod_init(void);
 132 #endif
 133
 134 #ifdef ENHANCED_SPEEDSTEP
 135 void    est_init(int);
 136 int     via_get_bus_clock(struct cpu_info *);
 137 int     viac7_get_bus_clock(struct cpu_info *);
 138 int     p3_get_bus_clock(struct cpu_info *);
 139 int     p4_get_bus_clock(struct cpu_info *);
 140 #endif
 141
 142 void    cpu_get_tsc_freq(struct cpu_info *);
 143
 144 extern int cpu_vendor;
 145 extern bool x86_mp_online;
 146
 147 #endif
 148
 149 #endif /* !_X86_CPUVAR_H_ */