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Diffstat (limited to 'sys/arch/hppa/include/param.h')
| -rw-r--r-- | sys/arch/hppa/include/param.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/sys/arch/hppa/include/param.h b/sys/arch/hppa/include/param.h new file mode 100644 index 00000000000..d4f8159e094 --- /dev/null +++ b/sys/arch/hppa/include/param.h @@ -0,0 +1,149 @@ +/* $OpenBSD: param.h,v 1.1 1998/06/23 19:45:25 mickey Exp $ */ + +/* + * Copyright (c) 1988-1994, The University of Utah and + * the Computer Systems Laboratory at the University of Utah (CSL). + * All rights reserved. + * + * Permission to use, copy, modify and distribute this software is hereby + * granted provided that (1) source code retains these copyright, permission, + * and disclaimer notices, and (2) redistributions including binaries + * reproduce the notices in supporting documentation, and (3) all advertising + * materials mentioning features or use of this software display the following + * acknowledgement: ``This product includes software developed by the + * Computer Systems Laboratory at the University of Utah.'' + * + * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS + * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF + * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * CSL requests users of this software to return to csl-dist@cs.utah.edu any + * improvements that they make and grant CSL redistribution rights. + * + * Utah $Hdr: param.h 1.18 94/12/16$ + */ + +#include <machine/cpu.h> +#include <machine/intr.h> + +/* + * Machine dependent constants for PA-RISC (1.1). + */ + +#define _MACHINE hp700 +#define MACHINE "hp700" +#define _MACHINE_ARCH hppa +#define MACHINE_ARCH "hppa" +#define MID_MACHINE MID_HPUX800 + +/* + * 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 3 +#define ALIGN(p) (((u_long)(p) + ALIGNBYTES) &~ ALIGNBYTES) + +#define NBPG 4096 /* bytes/page */ +#define PGOFSET (NBPG-1) /* byte offset into page */ +#define PGSHIFT 12 /* LOG2(NBPG) */ +#define NPTEPG (1 << (PGSHIFT-PTESHIFT)) + +#define SEGSHIFT (PGSHIFT + (PGSHIFT-PTESHIFT)) /* LOG2(NBSEG) */ +#define NBSEG (1 << SEGSHIFT) /* bytes/segment (quadrant) */ +#define SEGOFSET (NBSEG-1) /* byte offset into segment */ + +#define KERNBASE 0x00000000 /* 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 +#define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ + +#define STACK_GROWS_UP 1 /* stack grows to higher addresses */ + +#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 UPAGES (2) /* pages of u-area */ +#define USPACE (UPAGES * NBPG) /* pages for user struct */ + +/* + * 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 +#define MCLBYTES (1 << MCLSHIFT) /* large enough for ether MTU */ +#define MCLOFSET (MCLBYTES - 1) +#ifndef NMBCLUSTERS +#ifdef GATEWAY +#define NMBCLUSTERS (1024) /* cl map size: 1MB */ +#else +#define NMBCLUSTERS (512) /* cl map size: 0.5MB */ +#endif +#endif + +/* + * Size of kernel malloc arena in CLBYTES-sized logical pages + */ +#ifndef NKMEMCLUSTERS +#define NKMEMCLUSTERS (1024*1024/CLBYTES) +#endif + +/* pages ("clicks") (4096 bytes) 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) (((unsigned)(x)+(NBPG-1))>>PGSHIFT) + +#define LABELOFFSET 0 + +#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 hppa_round_page(x) ((((unsigned long)(x)) + NBPG - 1) & ~(NBPG-1)) +#define hppa_trunc_page(x) ((unsigned long)(x) & ~(NBPG-1)) +#define hppa_btop(x) ((unsigned long)(x) >> PGSHIFT) +#define hppa_ptob(x) ((unsigned long)(x) << PGSHIFT) + +#include <machine/intr.h> + +#ifdef _KERNEL + +#define DELAY(n) { register int N = (n); while (--N > 0); } + +#ifdef COMPAT_HPUX +/* + * Constants/macros for HPUX multiple mapping of user address space. + * Pages in the first 256Mb are mapped in at every 256Mb segment. + */ +#define HPMMMASK 0xF0000000 +#define ISHPMMADDR(v) 0 /* XXX ...jef */ +#define HPMMBASEADDR(v) ((unsigned)(v) & ~HPMMMASK) +#endif + +#endif |