osfmk/mach/ppc/vm_param.h

   1
   2 /*
   3  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
   4  *
   5  * @APPLE_LICENSE_HEADER_START@
   6  *
   7  * The contents of this file constitute Original Code as defined in and
   8  * are subject to the Apple Public Source License Version 1.1 (the
   9  * "License").  You may not use this file except in compliance with the
  10  * License.  Please obtain a copy of the License at
  11  * http://www.apple.com/publicsource and read it before using this file.
  12  *
  13  * This Original Code and all software distributed under the License are
  14  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  18  * License for the specific language governing rights and limitations
  19  * under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * @OSF_COPYRIGHT@
  25  */
  26
  27 #ifndef _MACH_PPC_VM_PARAM_H_
  28 #define _MACH_PPC_VM_PARAM_H_
  29
  30 /*
  31  * These are the global definitions
  32  */
  33
  34 #define BYTE_SIZE               8               /* byte size in bits */
  35
  36 #define PPC_PGBYTES             4096    /* bytes per ppc page */
  37 #define PPC_PGSHIFT             12              /* number of bits to shift for pages */
  38
  39 #define PAGE_SIZE               PPC_PGBYTES
  40 #define PAGE_SHIFT              PPC_PGSHIFT
  41 #define PAGE_MASK               (PAGE_SIZE - 1)
  42
  43 #if 0
  44 #define VM_MAX_PAGE_ADDRESS 0xFFFFFFFFFFFFF000ULL
  45 #else
  46 /*
  47  * LP64todo - For now, we are limited to 51-bits of user addressing
  48  */
  49 #define VM_MAX_PAGE_ADDRESS 0x0007FFFFFFFFF000ULL
  50 #endif
  51
  52 #define MACH_VM_MIN_ADDRESS     ((mach_vm_offset_t) 0)
  53 #define MACH_VM_MAX_ADDRESS     ((mach_vm_offset_t) VM_MAX_PAGE_ADDRESS)
  54
  55 /*
  56  * These are the values relative to the local process.
  57  */
  58 #if defined (__ppc64__)
  59 /*
  60  * LP64todo - We don't have the 64-bit address space layout yet.
  61  * Use the 32-bit stack layout for now.
  62  */
  63 #define VM_MIN_ADDRESS  ((vm_offset_t) MACH_VM_MIN_ADDRESS)
  64 #define VM_MAX_ADDRESS  ((vm_offset_t) MACH_VM_MAX_ADDRESS)
  65 #define USER_STACK_END          ((vm_offset_t) 0x00000000ffff0000ULL)
  66 #else
  67 #define VM_MIN_ADDRESS  ((vm_offset_t) 0)
  68 #define VM_MAX_ADDRESS  ((vm_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF))
  69 #define USER_STACK_END          ((vm_offset_t) 0xffff0000U)
  70 #endif /* defined(__ppc64__) */
  71
  72 #ifdef  KERNEL_PRIVATE
  73
  74 /* Kernel-wide values */
  75 #define VM_MIN_KERNEL_ADDRESS   ((vm_offset_t) 0x00001000)
  76 #define VM_MAX_KERNEL_ADDRESS   ((vm_offset_t) 0xDFFFFFFF)
  77 #define KERNEL_STACK_SIZE               (4 * PPC_PGBYTES)
  78 #define INTSTACK_SIZE           (5 * PPC_PGBYTES)
  79
  80 #define VM_MAP_MIN_ADDRESS      MACH_VM_MIN_ADDRESS
  81 #define VM_MAP_MAX_ADDRESS      MACH_VM_MAX_ADDRESS
  82
  83 #ifdef  MACH_KERNEL_PRIVATE
  84
  85 /* For implementing legacy 32-bit interfaces */
  86 #define VM32_SUPPORT
  87 #define VM32_MIN_ADDRESS        ((vm32_offset_t) 0)
  88 #define VM32_MAX_ADDRESS        ((vm32_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF))
  89
  90 #endif  /* MACH_KERNEL_PRIVATE */
  91
  92 #endif  /* KERNEL_PRIVATE */
  93
  94 #endif  /* _MACH_PPC_VM_PARAM_H_ */