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Annotation of kernel/mach/ppc/vm_param.h, revision 1.1

1.1     ! root        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: /* 
        !            26:  * Copyright (c) 1993 NeXT, Inc.
        !            27:  */ 
        !            28: 
        !            29: 
        !            30: #ifndef        _MACH_PPC_VM_PARAM_H_
        !            31: #define _MACH_PPC_VM_PARAM_H_
        !            32: 
        !            33: #import <sys/types.h>
        !            34: 
        !            35: #define BYTE_SIZE      8       /* byte size in bits */
        !            36: 
        !            37: #define PPC_PGBYTES    4096    /* bytes per power pc page */
        !            38: #define PPC_PGSHIFT    12      /* number of bits to shift for pages */
        !            39: #define PPC_PGALIGN    12      /* power of two for page alignment */
        !            40: 
        !            41: #define VM_MIN_ADDRESS ((vm_offset_t) 0)
        !            42: #define VM_MAX_ADDRESS ((vm_offset_t) 0xfffff000)
        !            43: 
        !            44: #define KERNELBASE_TEXT        0x0     /* see MACH3.0 mach/ppc/vm_param.h */
        !            45: 
        !            46: #define ppc_round_page(x)      ((((unsigned)(x)) + PPC_PGBYTES - 1) & \
        !            47:                                        ~(PPC_PGBYTES-1))
        !            48: #define ppc_trunc_page(x)      (((unsigned)(x)) & ~(PPC_PGBYTES-1))
        !            49: 
        !            50: #define VM_MIN_KERNEL_ADDRESS  ((vm_offset_t) 0x00004000)
        !            51: #define VM_MAX_KERNEL_ADDRESS  ((vm_offset_t) 0x3ffff000)
        !            52: 
        !            53: /*
        !            54:  * WARNING : If you make the stack bigger, you need to check the
        !            55:  *     trap code to make sure things still work...
        !            56:  */
        !            57:  
        !            58: #define KERNSTACK_SIZE         (4 * PPC_PGBYTES)
        !            59: #define INTSTACK_SIZE          (10 * PPC_PGBYTES)
        !            60: 
        !            61: /*
        !            62:  * Maximum alignment required by any data type for this architecture.
        !            63:  */
        !            64: #define MAX_DATA_ALIGNMENT      16  /* 16 byte alignment for LDCWS, LDCWX */
        !            65: 
        !            66: #endif /* _MACH_PPC_VM_PARAM_H_ */

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