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Diffstat (limited to 'sys/arch/m88k/include/param.h')
| -rw-r--r-- | sys/arch/m88k/include/param.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/sys/arch/m88k/include/param.h b/sys/arch/m88k/include/param.h new file mode 100644 index 00000000000..3f50cab54b2 --- /dev/null +++ b/sys/arch/m88k/include/param.h @@ -0,0 +1,149 @@ +/* $OpenBSD: param.h,v 1.1 2004/04/26 12:34:05 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 SSIZE 1 /* initial stack size/NBPG */ +#define SINCR 1 /* increment of stack/NBPG */ + +#define UPAGES 3 /* pages of u-area */ +#define USPACE (UPAGES * NBPG) + +#define UADDR 0xeee00000 /* address of u */ + +/* + * 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 ((4 * 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 +extern void delay(int); +#define DELAY(x) delay(x) + +extern int cputyp; +#endif + +/* + * Values for the cputyp variable. + */ +#define CPU_88100 0x100 +#define CPU_88110 0x110 + +#endif /* !_M88K_PARAM_H_ */ |