gen/libsa/memory.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.1 (the "License").  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License.
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /* memory addresses used by booter and friends */
  25
  26 /* these are all "virtual" addresses...
  27  * which are physical addresses plus MEMBASE.
  28  */
  29
  30 #define MEMBASE         0x0
  31 #define BASE_SEG        0x0
  32
  33 /* these are virtual addresses */
  34
  35 #define BIOS_ADDR               0x00C00         // BIOS buffer
  36 #define BIOS_LEN                0x02400         // 9k
  37 #define BOOTER_LOAD_ADDR        0x03000         // loaded here for compat.
  38 #define BOOTER_ADDR             0x03000         // start of booter code
  39 #define BOOTER_LEN              0x08000         // max of 32k
  40 #define STACK_ADDR              0x0FFF0
  41 #define BOOTSTRUCT_ADDR         0x11000
  42 #define BOOTSTRUCT_LEN          0x0F000         // it's slightly smaller
  43 #define EISA_CONFIG_ADDR        0x20000
  44 #define EISA_CONFIG_LEN         0x10000
  45 #define RLD_ADDR                0x30000
  46 #define RLD_LEN                 0x24000         // 140k
  47 #define ZALLOC_ADDR             0x54000
  48 #define ZALLOC_LEN              0x12000         // 72k
  49 #define MODULE_ADDR             0x66000
  50 #define RLD_MEM_ADDR            0x680000
  51 #define RLD_MEM_LEN             0x100000        // 1Mb
  52 #define KSYM_ADDR               0x780000
  53 #define KSYM_LEN                0x080000        // 512k
  54
  55 /* these are physical values */
  56
  57 //#define CONVENTIONAL_LEN      0xA0000         // 640k
  58 #define EXTENDED_ADDR           0x100000        // 1024k
  59 #define KERNEL_BOOT_ADDR        0x100000        /* load at 1Mb */
  60
  61 #define KERNEL_SYMBOL_OFFSET    0x100000        /* load at top - 1Mb */
  62
  63 #define SAIO_TABLE_POINTER      (BOOTER_ADDR + SAIO_TABLE_PTR_OFFSET)
  64 #define SAIO_TABLE_PTR_OFFSET   0x30
  65
  66 #define ptov(paddr)     ((paddr) - MEMBASE)
  67 #define vtop(vaddr)     ((vaddr) + MEMBASE)
  68
  69 #define MIN_EXT_MEM_KB  (7 * 1024)      /* 8 Mb minimum total */