osfmk/mach/ppc/vm_param.h

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