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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/mips/include/param.h |
/* $OpenBSD: param.h,v 1.11 1998/08/30 22:05:35 millert Exp $ */ /*- * Copyright (c) 1988 University of Utah. * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department and Ralph Campbell. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * from: Utah Hdr: machparam.h 1.11 89/08/14 * from: @(#)param.h 8.1 (Berkeley) 6/10/93 * JNPR: param.h,v 1.6.2.1 2007/09/10 07:49:36 girish * $FreeBSD: release/9.1.0/sys/mips/include/param.h 224207 2011-07-19 00:37:24Z attilio $ */ #ifndef _MIPS_INCLUDE_PARAM_H_ #define _MIPS_INCLUDE_PARAM_H_ #include <machine/_align.h> #include <sys/cdefs.h> #ifdef _KERNEL #ifndef _LOCORE #include <machine/cpu.h> #endif #endif #define __PCI_REROUTE_INTERRUPT #ifndef MACHINE #define MACHINE "mips" #endif #ifndef MACHINE_ARCH #if _BYTE_ORDER == _BIG_ENDIAN #ifdef __mips_n64 #define MACHINE_ARCH "mips64eb" #elif defined(__mips_n32) #define MACHINE_ARCH "mipsn32eb" #else #define MACHINE_ARCH "mipseb" #endif #else #ifdef __mips_n64 #define MACHINE_ARCH "mips64el" #elif defined(__mips_n32) #define MACHINE_ARCH "mipsn32el" #else #define MACHINE_ARCH "mipsel" #endif #endif #endif /* * OBJFORMAT_NAMES is a comma-separated list of the object formats * that are supported on the architecture. */ #define OBJFORMAT_NAMES "elf" #define OBJFORMAT_DEFAULT "elf" #define MID_MACHINE 0 /* None but has to be defined */ #ifdef SMP #define MAXSMPCPU 32 #ifndef MAXCPU #define MAXCPU MAXSMPCPU #endif #else #define MAXSMPCPU 1 #define MAXCPU 1 #endif /* * Round p (pointer or byte index) up to a correctly-aligned value for all * data types (int, long, ...). The result is u_int and must be cast to * any desired pointer type. */ #define ALIGNBYTES _ALIGNBYTES #define ALIGN(p) _ALIGN(p) /* * ALIGNED_POINTER is a boolean macro that checks whether an address * is valid to fetch data elements of type t from on this architecture. * This does not reflect the optimal alignment, just the possibility * (within reasonable limits). */ #define ALIGNED_POINTER(p, t) ((((unsigned long)(p)) & (sizeof (t) - 1)) == 0) /* * CACHE_LINE_SIZE is the compile-time maximum cache line size for an * architecture. It should be used with appropriate caution. */ #define CACHE_LINE_SHIFT 6 #define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT) #define PAGE_SHIFT 12 /* LOG2(PAGE_SIZE) */ #define PAGE_SIZE (1<<PAGE_SHIFT) /* bytes/page */ #define PAGE_MASK (PAGE_SIZE-1) #define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) #define NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t))) #if defined(__mips_n32) || defined(__mips_n64) /* PHYSADDR_64_BIT */ #define NPTEPGSHIFT 9 /* LOG2(NPTEPG) */ #else #define NPTEPGSHIFT 10 /* LOG2(NPTEPG) */ #endif #ifdef __mips_n64 #define NPDEPGSHIFT 9 /* LOG2(NPTEPG) */ #define SEGSHIFT (PAGE_SHIFT + NPTEPGSHIFT + NPDEPGSHIFT) #define NBSEG (1ul << SEGSHIFT) #define PDRSHIFT (PAGE_SHIFT + NPTEPGSHIFT) #define PDRMASK ((1 << PDRSHIFT) - 1) #else #define NPDEPGSHIFT 10 /* LOG2(NPTEPG) */ #define SEGSHIFT (PAGE_SHIFT + NPTEPGSHIFT) #define NBSEG (1 << SEGSHIFT) /* bytes/segment */ #define PDRSHIFT SEGSHIFT /* alias for SEG in 32 bit */ #define PDRMASK ((1 << PDRSHIFT) - 1) #endif #define NBPDR (1 << PDRSHIFT) /* bytes/pagedir */ #define SEGMASK (NBSEG - 1) /* byte offset into segment */ #define MAXPAGESIZES 1 /* max supported pagesizes */ #define BLKDEV_IOSIZE 2048 /* xxx: Why is this 1/2 page? */ #define MAXDUMPPGS 1 /* xxx: why is this only one? */ /* * The kernel stack needs to be aligned on a (PAGE_SIZE * 2) boundary. */ #define KSTACK_PAGES 2 /* kernel stack */ #define KSTACK_GUARD_PAGES 2 /* pages of kstack guard; 0 disables */ #define UPAGES 2 /* pages ("clicks") (4096 bytes) to disk blocks */ #define ctod(x) ((x) << (PAGE_SHIFT - DEV_BSHIFT)) #define dtoc(x) ((x) >> (PAGE_SHIFT - DEV_BSHIFT)) /* * Map a ``block device block'' to a file system block. * This should be device dependent, and should use the bsize * field from the disk label. * For now though just use DEV_BSIZE. */ #define bdbtofsb(bn) ((bn) / (BLKDEV_IOSIZE/DEV_BSIZE)) /* * Mach derived conversion macros */ #define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK) #define trunc_page(x) ((x) & ~PAGE_MASK) #define atop(x) ((x) >> PAGE_SHIFT) #define ptoa(x) ((x) << PAGE_SHIFT) #define pgtok(x) ((x) * (PAGE_SIZE / 1024)) #endif /* !_MIPS_INCLUDE_PARAM_H_ */