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cpuvar.h revision 1.8 
      1 /* 	$NetBSD: cpuvar.h,v 1.8 2007/03/06 12:32:46 yamt Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2000 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  * 3. All advertising materials mentioning features or use of this software
     21  *    must display the following acknowledgement:
     22  *        This product includes software developed by the NetBSD
     23  *        Foundation, Inc. and its contributors.
     24  * 4. Neither the name of The NetBSD Foundation nor the names of its
     25  *    contributors may be used to endorse or promote products derived
     26  *    from this software without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     29  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     31  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     32  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     33  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     34  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     35  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     36  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     37  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     38  * POSSIBILITY OF SUCH DAMAGE.
     39  */
     40 
     41 /*
     42  * Copyright (c) 1999 Stefan Grefen
     43  *
     44  * Redistribution and use in source and binary forms, with or without
     45  * modification, are permitted provided that the following conditions
     46  * are met:
     47  * 1. Redistributions of source code must retain the above copyright
     48  *    notice, this list of conditions and the following disclaimer.
     49  * 2. Redistributions in binary form must reproduce the above copyright
     50  *    notice, this list of conditions and the following disclaimer in the
     51  *    documentation and/or other materials provided with the distribution.
     52  * 3. All advertising materials mentioning features or use of this software
     53  *    must display the following acknowledgement:
     54  *      This product includes software developed by the NetBSD
     55  *      Foundation, Inc. and its contributors.
     56  * 4. Neither the name of The NetBSD Foundation nor the names of its
     57  *    contributors may be used to endorse or promote products derived
     58  *    from this software without specific prior written permission.
     59  *
     60  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
     61  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     62  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     63  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR AND CONTRIBUTORS BE LIABLE
     64  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     65  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     66  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     67  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     68  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     69  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     70  * SUCH DAMAGE.
     71  */
     72 
     73 #ifndef _X86_CPUVAR_H_
     74 #define	_X86_CPUVAR_H_
     75 
     76 struct cpu_functions {
     77 	int (*start)(struct cpu_info *);
     78 	int (*stop)(struct cpu_info *);
     79 	void (*cleanup)(struct cpu_info *);
     80 };
     81 
     82 extern const struct cpu_functions mp_cpu_funcs;
     83 
     84 #define CPU_ROLE_SP	0
     85 #define CPU_ROLE_BP	1
     86 #define CPU_ROLE_AP	2
     87 
     88 struct cpu_attach_args {
     89 	int cpu_number;
     90 	int cpu_role;
     91 	const struct cpu_functions *cpu_func;
     92 };
     93 
     94 #ifdef _KERNEL
     95 
     96 #include "opt_multiprocessor.h"
     97 
     98 #ifdef MULTIPROCESSOR
     99 extern u_int32_t cpus_running;
    100 #endif
    101 
    102 int x86_ipi(int,int,int);
    103 void x86_self_ipi(int);
    104 int x86_ipi_init(int);
    105 void x86_errata(struct cpu_info *, int);
    106 
    107 void identifycpu(struct cpu_info *);
    108 void cpu_init(struct cpu_info *);
    109 void cpu_init_first(void);
    110 
    111 #endif
    112 
    113 #endif /* !_X86_CPUVAR_H_ */
    114