/* $OpenBSD: param.h,v 1.14 2001/03/07 23:50:35 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 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 $Hdr: machparam.h 1.11 89/08/14$ * * @(#)param.h 7.8 (Berkeley) 6/28/91 * $Id: param.h,v 1.14 2001/03/07 23:50:35 miod Exp $ */ #ifndef _MACHINE_PARAM_H_ #define _MACHINE_PARAM_H_ #ifdef _KERNEL #ifndef _LOCORE #include #include #endif /* _LOCORE */ #endif #define _MACHINE mvme88k #define MACHINE "mvme88k" #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) #ifndef NBPG #define NBPG 4096 /* bytes/page */ #endif /* NBPG */ #define PGOFSET (NBPG-1) /* byte offset into page */ #define PGSHIFT 12 /* LOG2(NBPG) */ #define NPTEPG (NBPG/(sizeof(u_int))) #define NBSEG (1<<22) /* bytes/segment */ #define SEGOFSET (NBSEG-1) /* byte offset into segment */ #define SEGSHIFT 22 /* LOG2(NBSEG) */ /* * 187 Bug uses the bottom 64k. We allocate ptes to map this into the * kernel. But when we link the kernel, we tell it to start linking * past this 64k. How does this change KERNBASE? XXX */ #define KERNBASE 0x0 /* start of kernel virtual */ #define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT) #define DEV_BSIZE 512 #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ #define BLKDEV_IOSIZE 2048 /* Should this be changed? XXX */ #define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ #define CLSIZE 1 #define CLSIZELOG2 0 /* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */ #define SSIZE 1 /* initial stack size/NBPG */ #define SINCR 1 /* increment of stack/NBPG */ #define USPACE ctob(UPAGES) #define UPAGES 8 /* pages of u-area */ #define UADDR 0xEEE00000 /* address of u */ #define UVPN (UADDR>>PGSHIFT) /* virtual page number of u */ #define KERNELSTACK (UADDR+UPAGES*NBPG) /* top of kernel stack */ #define PHYSIO_MAP_START 0xEEF00000 #define PHYSIO_MAP_SIZE 0x00100000 #define IOMAP_MAP_START 0xEF000000 /* VME etc */ #define IOMAP_SIZE 0x018F0000 #define NIOPMAP 32 /* * Constants related to network buffer management. * MCLBYTES must be no larger than CLBYTES (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 128 /* 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 */ #ifndef NMBCLUSTERS #ifdef GATEWAY #define NMBCLUSTERS 1024 /* map size, max cluster allocation */ #else #define NMBCLUSTERS 512 /* map size, max cluster allocation */ #endif #endif /* * Size of kernel malloc arena in CLBYTES-sized logical pages */ #ifndef NKMEMCLUSTERS #define NKMEMCLUSTERS (4096*1024/CLBYTES) #endif #define MSGBUFSIZE 4096 /* pages ("clicks") to disk blocks */ #define ctod(x) ((x)<<(PGSHIFT-DEV_BSHIFT)) #define dtoc(x) ((x)>>(PGSHIFT-DEV_BSHIFT)) #define dtob(x) ((x)<>PGSHIFT) #define btodb(bytes) /* calculates (bytes / DEV_BSIZE) */ \ ((unsigned)(bytes) >> DEV_BSHIFT) #define dbtob(db) /* calculates (db * DEV_BSIZE) */ \ ((unsigned)(db) << 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 mvme88k_btop(x) ((unsigned)(x) >> PGSHIFT) #define mvme88k_ptob(x) ((unsigned)(x) << PGSHIFT) #ifdef _KERNEL extern int delay __P((int)); #define DELAY(x) delay(x) #endif #ifdef _KERNEL extern int cputyp; extern int cpumod; #endif /* * Values for the cputyp variable. */ #define CPU_187 0x187 #define CPU_188 0x188 #define CPU_197 0x197 #define CPU_8120 0x8120 #endif /* !_MACHINE_PARAM_H_ */