osfmk/ppc/lowglobals.h

   1 /*
   2  * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  *              Header files for the Low Memory Globals (lg)
  24  */
  25 #ifndef _LOW_MEMORY_GLOBALS_H_
  26 #define _LOW_MEMORY_GLOBALS_H_
  27
  28 #include <mach/mach_types.h>
  29 #include <mach/vm_types.h>
  30 #include <mach/machine/vm_types.h>
  31 #include <mach/vm_prot.h>
  32 #include <ppc/proc_reg.h>
  33 #include <ppc/savearea.h>
  34 #include <ppc/low_trace.h>
  35 #include <ppc/Diagnostics.h>
  36 #include <ppc/mappings.h>
  37
  38 /*
  39  * Don't change these structures unless you change the corresponding assembly code
  40  * which is in lowmem_vectors.s
  41  */
  42
  43 /*
  44  *      This is where we put constants, pointers, and data areas that must be accessed
  45  *      quickly through assembler.  They are designed to be accessed directly with
  46  *      absolute addresses, not via a base register.  This is a global area, and not
  47  *      per processor.
  48  */
  49
  50 #pragma pack(4)                                                         /* Make sure the structure stays as we defined it */
  51 typedef struct lowglo {
  52
  53         unsigned long   lgForceAddr[5*1024];    /* 0000 Force to page 5 */
  54         unsigned char   lgVerCode[8];                   /* 5000 System verification code */
  55         unsigned long long lgZero;                              /* 5008 Double constant 0 */
  56         unsigned int    lgPPStart;                              /* 5010 Start of per_proc blocks */
  57         unsigned int    lgCHUDXNUfnStart;               /* 5014 CHUD XNU function glue table */
  58         unsigned int    lgMckFlags;                             /* 5018 Machine check flags */
  59         unsigned int    lgVersion;                              /* 501C Pointer to kernel version string */
  60         uint64_t                lgPMWvaddr;                             /* 5020 physical memory window virtual address */
  61         uint64_t                lgUMWvaddr;                             /* 5028 user memory window virtual address */
  62         unsigned int    lgVMMforcedFeats;               /* 5030 VMM boot-args forced feature flags */
  63         unsigned int    lgMaxDec;                               /* 5034 Maximum decrementer we can set */
  64         unsigned int    lgPmsCtlp;                              /* 5038 Pointer to power management stepper control */
  65         unsigned int    lgRsv03C[17];                   /* 503C reserved */
  66         traceWork               lgTrcWork;                              /* 5080 Tracing control block - trcWork */
  67         unsigned int    lgRsv0A0[24];                   /* 50A0 reserved */
  68         struct Saveanchor       lgSaveanchor;           /* 5100 Savearea anchor - saveanchor */
  69         unsigned int    lgRsv140[16];                   /* 5140 reserved */
  70         unsigned int    lgTlbieLck;                             /* 5180 TLBIE lock */
  71         unsigned int    lgRsv184[31];                   /* 5184 reserved - push to next line */
  72         struct diagWork lgdgWork;                               /* 5200 Start of diagnostic work area */
  73         unsigned int    lglcksWork;                             /* 5220 lcks option */
  74         unsigned int    lgRsv224[23];                   /* 5224 reserved */
  75         pcfg                    lgpPcfg[8];                             /* 5280 Page configurations */
  76         unsigned int    lgRst2A0[24];                   /* 52A0 reserved */
  77         unsigned int    lgKillResv;                             /* 5300 line used to kill reservations */
  78         unsigned int    lgKillResvpad[31];              /* 5304 pad reservation kill line */
  79
  80         unsigned int    lgRsv380[32];                   /* 5380 - 5400 reserved  */
  81
  82         unsigned int    lgRsv400[32];                   /* 5400 - 5480 reserved  */
  83         uint32_t                lgKmodptr;              /* 0x5480 Pointer to kmod, debugging aid */
  84         uint32_t                lgTransOff;             /* 0x5484 Pointer to kdp_trans_off, debugging aid */
  85         uint32_t                lgReadIO;               /* 0x5488 Pointer to kdp_read_io, debugging aid */
  86         uint32_t                lgDevSlot1;             /* 0x548C For developer use */
  87         uint32_t                lgDevSlot2;             /* 0x5490 For developer use */
  88         uint32_t                lgRsv494[731];          /* 0x5494 reserved - push to 1 page */
  89
  90 } lowglo;
  91
  92 extern lowglo lowGlo;
  93
  94 #endif /* _LOW_MEMORY_GLOBALS_H_ */