osfmk/mach/ppc/vm_param.h

   1
   2 /*
   3  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
   4  *
   5  * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
   6  *
   7  * This file contains Original Code and/or Modifications of Original Code
   8  * as defined in and that are subject to the Apple Public Source License
   9  * Version 2.0 (the 'License'). You may not use this file except in
  10  * compliance with the License.  The rights granted to you under the
  11  * License may not be used to create, or enable the creation or
  12  * redistribution of, unlawful or unlicensed copies of an Apple operating
  13  * system, or to circumvent, violate, or enable the circumvention or
  14  * violation of, any terms of an Apple operating system software license
  15  * agreement.
  16  *
  17  * Please obtain a copy of the License at
  18  * http://www.opensource.apple.com/apsl/ and read it before using this
  19  * file.
  20  *
  21  * The Original Code and all software distributed under the License are
  22  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  23  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  24  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  25  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  26  * Please see the License for the specific language governing rights and
  27  * limitations under the License.
  28  *
  29  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  30  */
  31 /*
  32  * @OSF_COPYRIGHT@
  33  */
  34
  35 #ifndef _MACH_PPC_VM_PARAM_H_
  36 #define _MACH_PPC_VM_PARAM_H_
  37
  38 /*
  39  * These are the global definitions
  40  */
  41
  42 #define BYTE_SIZE               8               /* byte size in bits */
  43
  44 #define PPC_PGBYTES             4096    /* bytes per ppc page */
  45 #define PPC_PGSHIFT             12              /* number of bits to shift for pages */
  46
  47 #define PAGE_SIZE               PPC_PGBYTES
  48 #define PAGE_SHIFT              PPC_PGSHIFT
  49 #define PAGE_MASK               (PAGE_SIZE - 1)
  50
  51 #if 0
  52 #define VM_MAX_PAGE_ADDRESS 0xFFFFFFFFFFFFF000ULL
  53 #else
  54 /*
  55  * LP64todo - For now, we are limited to 51-bits of user addressing
  56  */
  57 #define VM_MAX_PAGE_ADDRESS 0x0007FFFFFFFFF000ULL
  58 #endif
  59
  60 #define MACH_VM_MIN_ADDRESS     ((mach_vm_offset_t) 0)
  61 #define MACH_VM_MAX_ADDRESS     ((mach_vm_offset_t) VM_MAX_PAGE_ADDRESS)
  62
  63 /*
  64  * These are the values relative to the local process.
  65  */
  66 #if defined (__ppc64__)
  67 /*
  68  * LP64todo - We don't have the 64-bit address space layout yet.
  69  * Use the 32-bit stack layout for now.
  70  */
  71 #define VM_MIN_ADDRESS  ((vm_offset_t) MACH_VM_MIN_ADDRESS)
  72 #define VM_MAX_ADDRESS  ((vm_offset_t) MACH_VM_MAX_ADDRESS)
  73 #define USER_STACK_END          ((vm_offset_t) 0x00000000ffff0000ULL)
  74 #else
  75 #define VM_MIN_ADDRESS  ((vm_offset_t) 0)
  76 #define VM_MAX_ADDRESS  ((vm_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF))
  77 #define USER_STACK_END          ((vm_offset_t) 0xffff0000U)
  78 #endif /* defined(__ppc64__) */
  79
  80 #ifdef  KERNEL_PRIVATE
  81
  82 /* Kernel-wide values */
  83 #define VM_MIN_KERNEL_ADDRESS   ((vm_offset_t) 0x00001000)
  84 #define VM_MAX_KERNEL_ADDRESS   ((vm_offset_t) 0xDFFFFFFF)
  85 #define KERNEL_STACK_SIZE               (4 * PPC_PGBYTES)
  86 #define INTSTACK_SIZE           (5 * PPC_PGBYTES)
  87
  88 #define VM_MAP_MIN_ADDRESS      MACH_VM_MIN_ADDRESS
  89 #define VM_MAP_MAX_ADDRESS      MACH_VM_MAX_ADDRESS
  90
  91 #ifdef  MACH_KERNEL_PRIVATE
  92
  93 /* For implementing legacy 32-bit interfaces */
  94 #define VM32_SUPPORT
  95 #define VM32_MIN_ADDRESS        ((vm32_offset_t) 0)
  96 #define VM32_MAX_ADDRESS        ((vm32_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF))
  97
  98 #endif  /* MACH_KERNEL_PRIVATE */
  99
 100 #endif  /* KERNEL_PRIVATE */
 101
 102 #endif  /* _MACH_PPC_VM_PARAM_H_ */