osfmk/mach/ppc/vm_param.h

   1 /*
   2  * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_COPYRIGHT@
  30  */
  31
  32 #ifndef _MACH_PPC_VM_PARAM_H_
  33 #define _MACH_PPC_VM_PARAM_H_
  34
  35 /*
  36  * These are the global definitions
  37  */
  38
  39 #define BYTE_SIZE               8               /* byte size in bits */
  40
  41 #define PPC_PGBYTES             4096    /* bytes per ppc page */
  42 #define PPC_PGSHIFT             12              /* number of bits to shift for pages */
  43
  44 #define PAGE_SIZE               PPC_PGBYTES
  45 #define PAGE_SHIFT              PPC_PGSHIFT
  46 #define PAGE_MASK               (PAGE_SIZE - 1)
  47
  48 #if 0
  49 #define VM_MAX_PAGE_ADDRESS 0xFFFFFFFFFFFFF000ULL
  50 #else
  51 /*
  52  * LP64todo - For now, we are limited to 51-bits of user addressing
  53  */
  54 #define VM_MAX_PAGE_ADDRESS 0x0007FFFFFFFFF000ULL
  55 #endif
  56
  57 #define MACH_VM_MIN_ADDRESS     ((mach_vm_offset_t) 0)
  58 #define MACH_VM_MAX_ADDRESS     ((mach_vm_offset_t) VM_MAX_PAGE_ADDRESS)
  59
  60 /*
  61  * These are the values relative to the local process.
  62  */
  63 #if defined (__ppc64__)
  64 /*
  65  * LP64todo - We don't have the 64-bit address space layout yet.
  66  * Use the 32-bit stack layout for now.
  67  */
  68 #define VM_MIN_ADDRESS  ((vm_offset_t) MACH_VM_MIN_ADDRESS)
  69 #define VM_MAX_ADDRESS  ((vm_offset_t) MACH_VM_MAX_ADDRESS)
  70 #define USER_STACK_END          ((vm_offset_t) 0x00000000ffff0000ULL)
  71 #else
  72 #define VM_MIN_ADDRESS  ((vm_offset_t) 0)
  73 #define VM_MAX_ADDRESS  ((vm_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF))
  74 #define USER_STACK_END          ((vm_offset_t) 0xffff0000U)
  75 #endif /* defined(__ppc64__) */
  76
  77 #ifdef  KERNEL_PRIVATE
  78
  79 /* Kernel-wide values */
  80 #define VM_MIN_KERNEL_ADDRESS   ((vm_offset_t) 0x00001000U)
  81 #define VM_MAX_KERNEL_ADDRESS   ((vm_offset_t) 0xDFFFFFFFU)
  82 #define KERNEL_STACK_SIZE               (4 * PPC_PGBYTES)
  83 #define INTSTACK_SIZE           (5 * PPC_PGBYTES)
  84
  85 #define VM_MAP_MIN_ADDRESS      MACH_VM_MIN_ADDRESS
  86 #define VM_MAP_MAX_ADDRESS      MACH_VM_MAX_ADDRESS
  87
  88 #ifdef  MACH_KERNEL_PRIVATE
  89
  90 /* For implementing legacy 32-bit interfaces */
  91 #define VM32_SUPPORT
  92 #define VM32_MIN_ADDRESS        ((vm32_offset_t) 0)
  93 #define VM32_MAX_ADDRESS        ((vm32_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF))
  94
  95 #endif  /* MACH_KERNEL_PRIVATE */
  96
  97 #endif  /* KERNEL_PRIVATE */
  98
  99 #endif  /* _MACH_PPC_VM_PARAM_H_ */