i386/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
  25 #ifndef __BOOT_MEMORY_H
  26 #define __BOOT_MEMORY_H
  27
  28 /* Memory addresses used by booter and friends */
  29
  30 /* These are all "virtual" addresses...
  31  * which are physical addresses plus MEMBASE.
  32  */
  33
  34 #define MEMBASE             0x0
  35 #define BASE_SEG            0x0
  36
  37 #define BIOS_ADDR           0x000C00    // BIOS buffer
  38 #define BIOS_LEN            0x002400    // 9k
  39 #define BOOTER_LOAD_ADDR    0x003000    // loaded here for compat.
  40 #define BOOTER_ADDR         0x003000    // start of booter code
  41 #define BOOTER_LEN          0x00B000
  42 #define STACK_ADDR          0x00FFF0
  43 #define BOOTSTRUCT_ADDR     0x011000
  44 #define BOOTSTRUCT_LEN      0x00F000    // it's slightly smaller
  45 #define EISA_CONFIG_ADDR    0x020000
  46 #define EISA_CONFIG_LEN     0x010000
  47 #define RLD_ADDR            0x030000
  48 #define RLD_LEN             0x070000
  49 #define VIDEO_ADDR          0x0A0000    // unusable space
  50 #define VIDEO_LEN           0x060000
  51 #define KERNEL_ADDR         0x100000
  52 #define KERNEL_LEN          0x400000
  53 #define RLD_MEM_ADDR        0x500000
  54 #define RLD_MEM_LEN         0x100000
  55 #define ZALLOC_ADDR         0x600000
  56 #define ZALLOC_LEN          0x100000
  57 #define MODULE_ADDR         0x700000    // to be used for compression..
  58 #define MODULE_LEN          0x080000
  59 #define KSYM_ADDR           0x780000
  60 #define KSYM_LEN            0x080000    // 512k
  61 #define TFTP_ADDR           0x800000    // 8MB
  62 #define TFTP_LEN            0x400000    // 4MB buffer size
  63
  64 /* these are physical values */
  65
  66 #define CONVENTIONAL_LEN    0x0A0000    // 640k
  67 #define EXTENDED_ADDR       0x100000    // 1024k
  68 #define KERNEL_BOOT_ADDR    KERNEL_ADDR /* load at 1Mb */
  69
  70 #define SAIO_TABLE_POINTER      (BOOTER_ADDR + SAIO_TABLE_PTR_OFFSET)
  71 #define SAIO_TABLE_PTR_OFFSET   0x30
  72
  73 #define ptov(paddr) ((paddr) - MEMBASE)
  74 #define vtop(vaddr) ((vaddr) + MEMBASE)
  75
  76 /*
  77  * Limits to the size of various things...
  78  */
  79
  80 /* We need a minimum of 12Mb of system memory. */
  81 #define MIN_SYS_MEM_KB  (12 * 1024)
  82
  83 #endif /* !__BOOT_MEMORY_H */