param.h revision 191276
170651Sobrien/*- 270651Sobrien * Copyright (c) 2001 David E. O'Brien 370651Sobrien * Copyright (c) 1990 The Regents of the University of California. 470651Sobrien * All rights reserved. 570651Sobrien * 670651Sobrien * This code is derived from software contributed to Berkeley by 770651Sobrien * William Jolitz. 870651Sobrien * 970651Sobrien * Redistribution and use in source and binary forms, with or without 1070651Sobrien * modification, are permitted provided that the following conditions 1170651Sobrien * are met: 1270651Sobrien * 1. Redistributions of source code must retain the above copyright 1370651Sobrien * notice, this list of conditions and the following disclaimer. 1470651Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1570651Sobrien * notice, this list of conditions and the following disclaimer in the 1670651Sobrien * documentation and/or other materials provided with the distribution. 1770651Sobrien * 3. All advertising materials mentioning features or use of this software 1870651Sobrien * must display the following acknowledgement: 1970651Sobrien * This product includes software developed by the University of 2070651Sobrien * California, Berkeley and its contributors. 2170651Sobrien * 4. Neither the name of the University nor the names of its contributors 2270651Sobrien * may be used to endorse or promote products derived from this software 2370651Sobrien * without specific prior written permission. 2470651Sobrien * 2570651Sobrien * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2670651Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2770651Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2870651Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2970651Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 3070651Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 3170651Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3270651Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3370651Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3470651Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3570651Sobrien * SUCH DAMAGE. 3670651Sobrien * 3770651Sobrien * from: @(#)param.h 5.8 (Berkeley) 6/28/91 3870651Sobrien * $FreeBSD: head/sys/arm/include/param.h 191276 2009-04-19 20:19:13Z rwatson $ 3970651Sobrien */ 4070651Sobrien 4170651Sobrien/* 4270651Sobrien * Machine dependent constants for StrongARM 4370651Sobrien */ 4470651Sobrien 4570651Sobrien/* 4670651Sobrien * Round p (pointer or byte index) up to a correctly-aligned value 4770651Sobrien * for all data types (int, long, ...). The result is unsigned int 4870651Sobrien * and must be cast to any desired pointer type. 4970651Sobrien */ 5070651Sobrien#ifndef _ALIGNBYTES 5170651Sobrien#define _ALIGNBYTES (sizeof(int) - 1) 5270651Sobrien#endif 5370651Sobrien#ifndef _ALIGN 5470651Sobrien#define _ALIGN(p) (((unsigned)(p) + _ALIGNBYTES) & ~_ALIGNBYTES) 5570651Sobrien#endif 5670651Sobrien 57135660Scognet#define STACKALIGNBYTES (8 - 1) 58135660Scognet#define STACKALIGN(p) ((u_int)(p) & ~STACKALIGNBYTES) 5970651Sobrien 6070651Sobrien#ifndef _NO_NAMESPACE_POLLUTION 6170651Sobrien 62154128Simp#define __PCI_REROUTE_INTERRUPT 63154128Simp 6470651Sobrien#ifndef _MACHINE_PARAM_H_ 6570651Sobrien#define _MACHINE_PARAM_H_ 6670651Sobrien 6770651Sobrien#ifndef MACHINE 68129198Scognet#define MACHINE "arm" 6970651Sobrien#endif 7070651Sobrien#ifndef MACHINE_ARCH 71129198Scognet#define MACHINE_ARCH "arm" 7270651Sobrien#endif 73129198Scognet#define MID_MACHINE MID_ARM6 7470651Sobrien 75177661Sjb#if defined(SMP) || defined(KLD_MODULE) 7670651Sobrien#define MAXCPU 2 7770651Sobrien#else 7870651Sobrien#define MAXCPU 1 79177661Sjb#endif /* SMP || KLD_MODULE */ 8070651Sobrien 8170651Sobrien#define ALIGNBYTES _ALIGNBYTES 8270651Sobrien#define ALIGN(p) _ALIGN(p) 8370651Sobrien 84191276Srwatson#ifndef CACHE_LINE_SHIFT 85191276Srwatson#define CACHE_LINE_SHIFT 6 86191276Srwatson#endif 87191276Srwatson#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT) 88191276Srwatson 8970651Sobrien#define PAGE_SHIFT 12 9070651Sobrien#define PAGE_SIZE (1 << PAGE_SHIFT) /* Page size */ 9170651Sobrien#define PAGE_MASK (PAGE_SIZE - 1) 9270651Sobrien#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) 9370651Sobrien 94129198Scognet#define PDR_SHIFT 20 /* log2(NBPDR) */ 95129198Scognet#define NBPDR (1 << PDR_SHIFT) 96129198Scognet#define NPDEPG (1 << (32 - PDR_SHIFT)) 9770651Sobrien 98129198Scognet#ifndef KSTACK_PAGES 99137227Scognet#define KSTACK_PAGES 2 100129198Scognet#endif /* !KSTACK_PAGES */ 10170651Sobrien 102129198Scognet#ifndef FPCONTEXTSIZE 103129198Scognet#define FPCONTEXTSIZE (0x100) 104129198Scognet#endif 105129198Scognet 106129198Scognet#ifndef KSTACK_GUARD_PAGES 107129198Scognet#define KSTACK_GUARD_PAGES 1 108129198Scognet#endif /* !KSTACK_GUARD_PAGES */ 109129198Scognet 110137939Scognet#define USPACE_SVC_STACK_TOP KSTACK_PAGES * PAGE_SIZE 111129198Scognet#define USPACE_SVC_STACK_BOTTOM (USPACE_SVC_STACK_TOP - 0x1000) 112129198Scognet#define USPACE_UNDEF_STACK_TOP (USPACE_SVC_STACK_BOTTOM - 0x10) 113129198Scognet#define USPACE_UNDEF_STACK_BOTTOM (FPCONTEXTSIZE + 10) 11470651Sobrien/* 11570651Sobrien * Mach derived conversion macros 11670651Sobrien */ 11770651Sobrien#define trunc_page(x) ((x) & ~PAGE_MASK) 11870651Sobrien#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK) 11970651Sobrien#define trunc_4mpage(x) ((unsigned)(x) & ~PDRMASK) 12070651Sobrien#define round_4mpage(x) ((((unsigned)(x)) + PDRMASK) & ~PDRMASK) 12170651Sobrien 12270651Sobrien#define atop(x) ((unsigned)(x) >> PAGE_SHIFT) 12370651Sobrien#define ptoa(x) ((unsigned)(x) << PAGE_SHIFT) 12470651Sobrien 12570651Sobrien#define arm32_btop(x) ((unsigned)(x) >> PAGE_SHIFT) 12670651Sobrien#define arm32_ptob(x) ((unsigned)(x) << PAGE_SHIFT) 12770651Sobrien 12870651Sobrien#define pgtok(x) ((x) * (PAGE_SIZE / 1024)) 12970651Sobrien 13070651Sobrien#endif /* !_MACHINE_PARAM_H_ */ 13170651Sobrien#endif /* !_NO_NAMESPACE_POLLUTION */ 132