osfmk/ppc/lowglobals.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  *              Header files for the Low Memory Globals (lg)
  27  */
  28 #ifndef _LOW_MEMORY_GLOBALS_H_
  29 #define _LOW_MEMORY_GLOBALS_H_
  30
  31 #include <cpus.h>
  32
  33 #include <mach/mach_types.h>
  34 #include <mach/vm_types.h>
  35 #include <mach/machine/vm_types.h>
  36 #include <mach/vm_prot.h>
  37 #include <ppc/proc_reg.h>
  38 #include <ppc/savearea.h>
  39 #include <ppc/low_trace.h>
  40 #include <ppc/Diagnostics.h>
  41
  42 /*
  43  * Don't change these structures unless you change the corresponding assembly code
  44  * which is in lowmem_vectors.s
  45  */
  46
  47 /*
  48  *      This is where we put constants, pointers, and data areas that must be accessed
  49  *      quickly through assembler.  They are designed to be accessed directly with
  50  *      absolute addresses, not via a base register.  This is a global area, and not
  51  *      per processor.
  52  */
  53
  54 #pragma pack(4)                                                         /* Make sure the structure stays as we defined it */
  55 typedef struct lowglo {
  56
  57         unsigned long   lgForceAddr[5*1024];    /* 0000 Force to page 5 */
  58         unsigned char   lgVerCode[8];                   /* 5000 System verification code */
  59         unsigned long long lgZero;                              /* 5008 Double constant 0 */
  60         unsigned int    lgPPStart;                              /* 5010 Start of per_proc blocks */
  61         unsigned int    lgRsv014[27];                   /* 5014 reserved */
  62         traceWork               lgTrcWork;                              /* 5080 Tracing control block - trcWork */
  63         unsigned int    lgRsv0A0[24];                   /* 50A0 reserved */
  64         struct Saveanchor       lgSaveanchor;           /* 5100 Savearea anchor - saveanchor */
  65         unsigned int    lgRsv140[16];                   /* 5140 reserved */
  66         unsigned int    lgTlbieLck;                             /* 5180 TLBIE lock */
  67         unsigned int    lgRsv184[31];                   /* 5184 reserved - push to next line */
  68         struct diagWork lgdgWork;                               /* 5200 Start of diagnostic work area */
  69         unsigned int    lgRsv220[24];                   /* 5220 reserved */
  70         unsigned int    lgRst280[32];                   /* 5280 reserved */
  71         unsigned int    lgKillResv;                             /* 5300 line used to kill reservations */
  72         unsigned int    lgKillResvpad[31];              /* 5304 pad reservation kill line */
  73         unsigned int    lgRsv380[768];                  /* 5380 reserved - push to 1 page */
  74
  75 } lowglo;
  76
  77 extern lowglo lowGlo;
  78
  79 #endif /* _LOW_MEMORY_GLOBALS_H_ */