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Annotation of sys/arch/jornada/include/vmparam.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: vmparam.h,v 1.4 2007/06/09 05:57:32 drahn Exp $       */
                      2: /*     $NetBSD: vmparam.h,v 1.23 2003/05/22 05:47:07 thorpej Exp $     */
                      3:
                      4: /*
                      5:  * Copyright (c) 1988 The Regents of the University of California.
                      6:  * All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. Neither the name of the University nor the names of its contributors
                     17:  *    may be used to endorse or promote products derived from this software
                     18:  *    without specific prior written permission.
                     19:  *
                     20:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     30:  * SUCH DAMAGE.
                     31:  */
                     32:
                     33: #ifndef        _ARMISH_VMPARAM_H_
                     34: #define        _ARMISH_VMPARAM_H_
                     35:
                     36: #define        ARM_KERNEL_BASE         0xc0000000
                     37:
                     38: /* Allow armish to have bigger DSIZ than generic arm, allow user to override */
                     39: #ifndef        MAXDSIZ
                     40: #define        MAXDSIZ         (1024*1024*1024)                /* max data size */
                     41: #endif
                     42:
                     43: #include <arm/vmparam.h>
                     44:
                     45: #ifdef _KERNEL
                     46: /*
                     47:  * Address space constants
                     48:  */
                     49:
                     50: /*
                     51:  * The line between user space and kernel space
                     52:  * Mappings >= KERNEL_BASE are constant across all processes
                     53:  */
                     54: #define        KERNEL_BASE             ARM_KERNEL_BASE
                     55:
                     56: /*
                     57:  * Override the default pager_map size, there's not enough KVA.
                     58:  */
                     59: #define PAGER_MAP_SIZE         (4 * 1024 * 1024)
                     60:
                     61: /*
                     62:  * Size of User Raw I/O map
                     63:  */
                     64:
                     65: #define USRIOSIZE       300
                     66:
                     67: /* virtual sizes (bytes) for various kernel submaps */
                     68:
                     69: #define VM_PHYS_SIZE           (USRIOSIZE*PAGE_SIZE)
                     70:
                     71: /*
                     72:  * max number of non-contig chunks of physical RAM you can have
                     73:  */
                     74:
                     75: #define        VM_PHYSSEG_MAX          1
                     76: #define        VM_PHYSSEG_STRAT        VM_PSTRAT_RANDOM
                     77:
                     78: /*
                     79:  * this indicates that we can't add RAM to the VM system after the
                     80:  * vm system is init'd.
                     81:  */
                     82:
                     83: #define        VM_PHYSSEG_NOADD
                     84:
                     85: /*
                     86:  * we support 2 free lists:
                     87:  *
                     88:  *     - DEFAULT for all systems
                     89:  *     - ISADMA for the ISA DMA range on Sharks only
                     90:  */
                     91: #endif /* _KERNEL */
                     92:
                     93: #define        VM_NFREELIST            2
                     94: #define        VM_FREELIST_DEFAULT     0
                     95:
                     96:
                     97: #endif /* _ARMISH_VMPARAM_H_ */