/* $OpenBSD: param.h,v 1.8 2005/10/13 19:47:12 miod Exp $ */ /* * Copyright (c) 1999 Steve Murphree, Jr. * Copyright (c) 1988 University of Utah. * Copyright (c) 1982, 1986, 1990 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. * * 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. * 3. 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 $Hdr: machparam.h 1.11 89/08/14$ * * @(#)param.h 7.8 (Berkeley) 6/28/91 */ #ifndef _M88K_PARAM_H_ #define _M88K_PARAM_H_ #ifdef _KERNEL #ifndef _LOCORE #include <machine/cpu.h> #endif /* _LOCORE */ #endif #define _MACHINE_ARCH m88k #define MACHINE_ARCH "m88k" #define MID_MACHINE MID_M88K /* * Round p (pointer or byte index) down 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. ALIGN() is used for * aligning stack, which needs to be on a double word boundary for * 88k. */ #define ALIGNBYTES 15 /* 64 bit alignment */ #define ALIGN(p) (((u_int)(p) + ALIGNBYTES) & ~ALIGNBYTES) #define ALIGNED_POINTER(p,t) ((((u_long)(p)) & (sizeof(t)-1)) == 0) #define NBPG (1 << PGSHIFT) /* bytes/page */ #define PGOFSET (NBPG-1) /* byte offset into page */ #define PGSHIFT 12 /* LOG2(NBPG) */ #define PAGE_SHIFT 12 #define PAGE_SIZE (1 << PAGE_SHIFT) #define PAGE_MASK (PAGE_SIZE - 1) #define NPTEPG (PAGE_SIZE / (sizeof(pt_entry_t))) #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ #define DEV_BSIZE (1 << DEV_BSHIFT) #define BLKDEV_IOSIZE 2048 #define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ #define UPAGES 2 /* pages of u-area */ #define USPACE (UPAGES * NBPG) #define USPACE_ALIGN (0) /* u-area alignment 0-none */ /* * Constants related to network buffer management. * MCLBYTES must be no larger than the software page size, and, * on machines that exchange pages of input or output buffers with mbuf * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple * of the hardware page size. */ #define MSIZE 256 /* size of an mbuf */ #define MCLSHIFT 11 /* convert bytes to m_buf clusters */ #define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ #define MCLOFSET (MCLBYTES - 1) /* offset within a m_buf cluster */ #define NMBCLUSTERS 2048 /* map size, max cluster allocation */ /* * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized * logical pages. */ #define NKMEMPAGES_MIN_DEFAULT ((4 * 1024 * 1024) >> PAGE_SHIFT) #define NKMEMPAGES_MAX_DEFAULT ((64 * 1024 * 1024) >> PAGE_SHIFT) #define MSGBUFSIZE PAGE_SIZE /* pages ("clicks") to disk blocks */ #define ctod(x) ((x) << (PGSHIFT - DEV_BSHIFT)) #define dtoc(x) ((x) >> (PGSHIFT - DEV_BSHIFT)) /* pages to bytes */ #define ctob(x) ((x) << PGSHIFT) #define btoc(x) (((x) + PGOFSET) >> PGSHIFT) /* bytes to disk blocks */ #define btodb(x) ((x) >> DEV_BSHIFT) #define dbtob(x) ((x) << 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)) /* * Get interrupt glue. */ #include <machine/intr.h> #ifdef _KERNEL #define DELAY(x) delay(x) #if !defined(_LOCORE) extern void delay(int); extern int cputyp; #endif /* * Values for the cputyp variable. */ #define CPU_88100 0x100 #define CPU_88110 0x110 #ifdef M88100 #ifdef M88110 #define CPU_IS88100 (cputyp == CPU_88100) #define CPU_IS88110 (cputyp != CPU_88100) #else #define CPU_IS88100 1 #define CPU_IS88110 0 #endif #else #define CPU_IS88100 0 #define CPU_IS88110 1 #endif #endif /* _KERNEL */ #endif /* !_M88K_PARAM_H_ */