sys/arch/sun3/include/vmparam.h

   1 /*      $NetBSD: vmparam.h,v 1.32 2003/04/02 07:53:58 thorpej Exp $     */
   2
   3 /*-
   4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #ifndef _SUN3_VMPARAM_H_
  30 #define _SUN3_VMPARAM_H_ 1
  31
  32 /*
  33  * We use 8K pages on both the sun3 and sun3x.  Override PAGE_*
  34  * to be compile-time constants.
  35  */
  36 #define PAGE_SHIFT      13
  37 #define PAGE_SIZE       (1 << PAGE_SHIFT)
  38 #define PAGE_MASK       (PAGE_SIZE - 1)
  39
  40 #ifdef  _SUN3_
  41 #include <machine/vmparam3.h>
  42 #endif  /* SUN3 */
  43 #ifdef  _SUN3X_
  44 #include <machine/vmparam3x.h>
  45 #endif  /* SUN3X */
  46 #ifdef  _LKM
  47 #define USRSTACK KERNBASE
  48 /* Be conservative. If an LKM is gonna be built for sun3x, define this first */
  49 #ifndef MAXDSIZ
  50 #define MAXDSIZ         (32*1024*1024)          /* max data size */
  51 #endif
  52 extern  char KERNBASE[];
  53 #endif  /* _LKM */
  54
  55 /* This is needed by some LKMs. */
  56 #define VM_PHYSSEG_MAX          4
  57
  58 /*
  59  * Mach-derived constants:
  60  */
  61
  62 /* user/kernel map constants */
  63 #define VM_MIN_ADDRESS          ((vaddr_t)0)
  64 #define VM_MAX_ADDRESS          ((vaddr_t)KERNBASE)
  65 #define VM_MAXUSER_ADDRESS      ((vaddr_t)KERNBASE)
  66 #define VM_MIN_KERNEL_ADDRESS   ((vaddr_t)KERNBASE)
  67 #define VM_MAX_KERNEL_ADDRESS   ((vaddr_t)KERN_END)
  68
  69 /* virtual sizes (bytes) for various kernel submaps */
  70 #define VM_PHYS_SIZE            (USRIOSIZE*PAGE_SIZE)
  71
  72 #define VM_PHYSSEG_STRAT        VM_PSTRAT_BSEARCH
  73 #define VM_PHYSSEG_NOADD        /* can't add RAM after vm_mem_init */
  74
  75 #define VM_NFREELIST            1
  76 #define VM_FREELIST_DEFAULT     0
  77
  78 #endif  /* _SUN3_VMPARAM_H_ */