engine.h

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    1 /* 
    2  * Mach Operating System
    3  * Copyright (c) 1991 Carnegie Mellon University
    4  * Copyright (c) 1991 Sequent Computer Systems
    5  * All Rights Reserved.
    6  * 
    7  * Permission to use, copy, modify and distribute this software and its
    8  * documentation is hereby granted, provided that both the copyright
    9  * notice and this permission notice appear in all copies of the
   10  * software, derivative works or modified versions, and any portions
   11  * thereof, and that both notices appear in supporting documentation.
   12  * 
   13  * CARNEGIE MELLON AND SEQUENT COMPUTER SYSTEMS ALLOW FREE USE OF
   14  * THIS SOFTWARE IN ITS "AS IS" CONDITION.  CARNEGIE MELLON AND
   15  * SEQUENT COMPUTER SYSTEMS DISCLAIM ANY LIABILITY OF ANY KIND FOR
   16  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   17  * 
   18  * Carnegie Mellon requests users of this software to return to
   19  * 
   20  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   21  *  School of Computer Science
   22  *  Carnegie Mellon University
   23  *  Pittsburgh PA 15213-3890
   24  * 
   25  * any improvements or extensions that they make and grant Carnegie Mellon 
   26  * the rights to redistribute these changes.
   27  */
   28 
   29 /*
   30  * HISTORY
   31  * $Log:        engine.h,v $
   32  * Revision 2.3  91/07/31  18:00:44  dbg
   33  *      Changed copyright.
   34  *      [91/07/31            dbg]
   35  * 
   36  * Revision 2.2  91/05/08  12:55:47  dbg
   37  *      Adapted from Sequent SYMMETRY sources.
   38  *      [91/04/26  14:51:36  dbg]
   39  * 
   40  */
   41 
   42 /*
   43  * $Header: engine.h,v 2.3 91/07/31 18:00:44 dbg Exp $
   44  *
   45  * engine.h
   46  *      Per-processor basic "engine" structure.  Fundamental representation
   47  *      of a processor for dispatching and initialization.
   48  *
   49  * Allocated per-processor at boot-time in an array.  Base stored in
   50  * "engine".
   51  */
   52 
   53 /*
   54  * Revision 1.1  89/07/19  14:48:54  kak
   55  * Initial revision
   56  * 
   57  * Revision 2.7  89/02/20  07:59:43  djg
   58  * fixed comment for E_FPU387 flag. 1=387 0 = no 387
   59  * 
   60  * Revision 2.6  88/11/10  08:25:57  djg
   61  * bak242 
   62  * 
   63  */
   64 
   65 #ifndef _SQT_ENGINE_H_
   66 #define _SQT_ENGINE_H_
   67 
   68 struct  engine  {
   69         unsigned char   e_slicaddr;     /* the processor's SLIC address */
   70         char            e_unused;
   71         short           e_flags;        /* processor flags - see below  */
   72         unsigned int    e_diag_flag;    /* copy of power-up diagnostic flags */
   73         int             e_cpu_speed;    /* copy of config cpu speed     */
   74         unsigned int    e_fpuon;        /* bits to turn on fpu */
   75         unsigned int    e_fpuoff;       /* bits to turn on fpu */
   76 };
   77 
   78 /* currently defined flag bits */
   79 #define E_OFFLINE       0x01            /* processor is off-line        */
   80 #define E_BAD           0x02            /* processor is bad             */
   81 #define E_SHUTDOWN      0x04            /* shutdown has been requested  */ 
   82 #define E_DRIVER        0x08            /* processor has driver bound   */
   83 #define E_PAUSED        0x10            /* processor paused - see panic */
   84 #define E_FPU387        0x20            /* 1==387 0 not (i386 only) */
   85 #define E_FPA           0x40            /* processor has an FPA (i386 only) */
   86 #define E_NOWAY         (E_OFFLINE|E_BAD|E_SHUTDOWN|E_PAUSED)
   87 
   88 /* Cannot switch process to Engine - see runme */
   89 #define E_UNAVAIL       -1
   90 
   91 #ifdef KERNEL
   92 extern  struct engine   *engine;        /* Engine Array Base */
   93 extern  struct engine   *engine_Nengine;/* just past Engine Array Base */
   94 extern  unsigned        Nengine;        /* # Engines to alloc at boot */
   95 extern  unsigned        nonline;        /* count of online engines */
   96 #endif KERNEL
   97 
   98 #endif  /* _SQT_ENGINE_H_ */
   99

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FreeBSD/Linux Kernel Cross Reference sys/sqt/engine.h

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sys/sqt/engine.h