Annotation of sys/arch/armish/include/vmparam.h, Revision 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_ */
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