osfmk/ppc/lowglobals.h

   1 /*
   2  * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  *              Header files for the Low Memory Globals (lg)
  30  */
  31 #ifndef _LOW_MEMORY_GLOBALS_H_
  32 #define _LOW_MEMORY_GLOBALS_H_
  33
  34 #include <mach/mach_types.h>
  35 #include <mach/vm_types.h>
  36 #include <mach/machine/vm_types.h>
  37 #include <mach/vm_prot.h>
  38 #include <ppc/proc_reg.h>
  39 #include <ppc/savearea.h>
  40 #include <ppc/low_trace.h>
  41 #include <ppc/Diagnostics.h>
  42 #include <ppc/mappings.h>
  43
  44 /*
  45  * Don't change these structures unless you change the corresponding assembly code
  46  * which is in lowmem_vectors.s
  47  */
  48
  49 /*
  50  *      This is where we put constants, pointers, and data areas that must be accessed
  51  *      quickly through assembler.  They are designed to be accessed directly with
  52  *      absolute addresses, not via a base register.  This is a global area, and not
  53  *      per processor.
  54  */
  55
  56 #pragma pack(4)                                                         /* Make sure the structure stays as we defined it */
  57 typedef struct lowglo {
  58
  59         unsigned long   lgForceAddr[5*1024];    /* 0000 Force to page 5 */
  60         unsigned char   lgVerCode[8];                   /* 5000 System verification code */
  61         unsigned long long lgZero;                              /* 5008 Double constant 0 */
  62         unsigned int    lgPPStart;                              /* 5010 Start of per_proc blocks */
  63         unsigned int    lgCHUDXNUfnStart;               /* 5014 CHUD XNU function glue table */
  64         unsigned int    lgMckFlags;                             /* 5018 Machine check flags */
  65         unsigned int    lgVersion;                              /* 501C Pointer to kernel version string */
  66         uint64_t                lgPMWvaddr;                             /* 5020 physical memory window virtual address */
  67         uint64_t                lgUMWvaddr;                             /* 5028 user memory window virtual address */
  68         unsigned int    lgVMMforcedFeats;               /* 5030 VMM boot-args forced feature flags */
  69         unsigned int    lgMaxDec;                               /* 5034 Maximum decrementer we can set */
  70         unsigned int    lgPmsCtlp;                              /* 5038 Pointer to power management stepper control */
  71         unsigned int    lgRsv03C[17];                   /* 503C reserved */
  72         traceWork               lgTrcWork;                              /* 5080 Tracing control block - trcWork */
  73         unsigned int    lgRsv0A0[24];                   /* 50A0 reserved */
  74         struct Saveanchor       lgSaveanchor;           /* 5100 Savearea anchor - saveanchor */
  75         unsigned int    lgRsv140[16];                   /* 5140 reserved */
  76         unsigned int    lgTlbieLck;                             /* 5180 TLBIE lock */
  77         unsigned int    lgRsv184[31];                   /* 5184 reserved - push to next line */
  78         struct diagWork lgdgWork;                               /* 5200 Start of diagnostic work area */
  79         unsigned int    lglcksWork;                             /* 5220 lcks option */
  80         unsigned int    lgRsv224[23];                   /* 5224 reserved */
  81         pcfg                    lgpPcfg[8];                             /* 5280 Page configurations */
  82         unsigned int    lgRst2A0[24];                   /* 52A0 reserved */
  83         unsigned int    lgKillResv;                             /* 5300 line used to kill reservations */
  84         unsigned int    lgKillResvpad[31];              /* 5304 pad reservation kill line */
  85
  86         unsigned int    lgRsv380[32];                   /* 5380 - 5400 reserved  */
  87
  88         unsigned int    lgRsv400[32];                   /* 5400 - 5480 reserved  */
  89         uint32_t                lgKmodptr;              /* 0x5480 Pointer to kmod, debugging aid */
  90         uint32_t                lgTransOff;             /* 0x5484 Pointer to kdp_trans_off, debugging aid */
  91         uint32_t                lgReadIO;               /* 0x5488 Pointer to kdp_read_io, debugging aid */
  92         uint32_t                lgDevSlot1;             /* 0x548C For developer use */
  93         uint32_t                lgDevSlot2;             /* 0x5490 For developer use */
  94         uint32_t                lgOSVersion;            /* 0x5494 Pointer to OS version string */
  95         uint32_t                lgRebootFlag;           /* 0x5498 Pointer to debugger reboot trigger */
  96         uint32_t                lgRsv49C[729];          /* 0x549C Reserved - push to 1 page */
  97 } lowglo;
  98
  99 extern lowglo lowGlo;
 100
 101 #endif /* _LOW_MEMORY_GLOBALS_H_ */