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Annotation of kernel/mach/ppc/vm_param.h, revision 1.1.1.1

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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