45d426a34e
mips32r2 and mips64r2 (and close relatives) processors. There presently is support for ADMtek ADM5120, A mips 4Kc in a malta board, the RB533 routerboard (based on IDT RC32434) and some preliminary support for sibtye/broadcom designs. Other hardware support will be forthcomcing. This port boots multiuser under gxemul emulating the malta board and also bootstraps on the hardware whose support is forthcoming... Oleksandr Tymoshenko, Wojciech Koszek, Warner Losh, Olivier Houchard, Randall Stewert and others that have contributed to the mips2 and/or mips2-jnpr perforce branches. Juniper contirbuted a generic mips port late in the life cycle of the misp2 branch. Warner Losh merged the mips2 and Juniper code bases, and others list above have worked for the past several months to get to multiuser. In addition, the mips2 work owe a debt to the trail blazing efforts of the original mips branch in perforce done by Juli Mallett.
197 lines
6.2 KiB
C
197 lines
6.2 KiB
C
/* $OpenBSD: param.h,v 1.11 1998/08/30 22:05:35 millert Exp $ */
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/*-
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department and Ralph Campbell.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah Hdr: machparam.h 1.11 89/08/14
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* from: @(#)param.h 8.1 (Berkeley) 6/10/93
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* JNPR: param.h,v 1.6.2.1 2007/09/10 07:49:36 girish
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* $FreeBSD$
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*/
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#ifndef _MACHINE_PARAM_H_
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#define _MACHINE_PARAM_H_
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#include <sys/cdefs.h>
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#ifdef _KERNEL
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#ifdef _LOCORE
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#include <machine/psl.h>
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#else
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#include <machine/cpu.h>
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#endif
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#endif
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#define __PCI_REROUTE_INTERRUPT
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#ifndef MACHINE
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#define MACHINE "mips"
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#endif
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#ifndef MACHINE_ARCH
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#define MACHINE_ARCH "mips"
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#endif
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/*
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* OBJFORMAT_NAMES is a comma-separated list of the object formats
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* that are supported on the architecture.
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*/
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#define OBJFORMAT_NAMES "elf"
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#define OBJFORMAT_DEFAULT "elf"
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#define MID_MACHINE 0 /* None but has to be defined */
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#ifdef SMP
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#define MAXSMPCPU 16
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#define MAXCPU MAXSMPCPU
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#else
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#define MAXSMPCPU 1
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#define MAXCPU 1
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#endif
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/*
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* Round p (pointer or byte index) up to a correctly-aligned value for all
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* data types (int, long, ...). The result is u_int and must be cast to
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* any desired pointer type.
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*/
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#define _ALIGNBYTES 7
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#define _ALIGN(p) (((u_int)(p) + _ALIGNBYTES) &~ _ALIGNBYTES)
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#define ALIGNED_POINTER(p, t) ((((u_int32_t)(p)) & (sizeof (t) - 1)) == 0)
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#define ALIGNBYTES _ALIGNBYTES
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#define ALIGN(p) _ALIGN(p)
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#define NBPG 4096 /* bytes/page */
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#define PGOFSET (NBPG-1) /* byte offset into page */
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#define PGSHIFT 12 /* LOG2(NBPG) */
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#define PAGE_SHIFT 12 /* LOG2(PAGE_SIZE) */
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#define PAGE_SIZE (1<<PAGE_SHIFT) /* bytes/page */
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#define PAGE_MASK (PAGE_SIZE-1)
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#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t)))
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#define NBSEG 0x400000 /* bytes/segment */
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#define SEGOFSET (NBSEG-1) /* byte offset into segment */
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#define SEGSHIFT 22 /* LOG2(NBSEG) */
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/* XXXimp: This has moved to vmparam.h */
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/* Also, this differs from the mips2 definition, but likely is better */
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/* since this means the kernel won't chew up TLBs when it is executing */
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/* code */
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#define KERNBASE 0x80000000 /* start of kernel virtual */
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#define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT)
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#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
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#define BLKDEV_IOSIZE 2048
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#define DFLTPHYS (64 * 1024) /* default max raw I/O transfer size */
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#define MAXPHYS (128 * 1024) /* max raw I/O transfer size */
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#define MAXDUMPPGS 1
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#define CLSIZE 1
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#define CLBYTES (CLSIZE * NBPG)
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#define CLSIZELOG2 0
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/*
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* NOTE: In FreeBSD, Uarea's don't have a fixed address.
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* Therefore, any code imported from OpenBSD which depends on
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* UADDR, UVPN and KERNELSTACK requires porting.
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*/
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#define KSTACK_PAGES 3 /* kernel stack*/
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#define KSTACK_GUARD_PAGES 0 /* pages of kstack guard; 0 disables */
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#define UPAGES 2
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/*
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* Constants related to network buffer management.
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* MCLBYTES must be no larger than CLBYTES (the software page size), and,
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* on machines that exchange pages of input or output buffers with mbuf
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* clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
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* of the hardware page size.
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*/
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#ifndef MSIZE
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#define MSIZE 256 /* size of an mbuf */
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#endif /* MSIZE */
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#ifndef MCLSHIFT
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#define MCLSHIFT 11
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#endif /* MCLSHIFT */
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#define MCLBYTES (1 << MCLSHIFT) /* enough for whole Ethernet packet */
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#define MCLOFSET (MCLBYTES - 1)
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/*
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* Size of kernel malloc arena in CLBYTES-sized logical pages
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*/
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#ifndef NKMEMCLUSTERS
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#define NKMEMCLUSTERS (4096*1024/CLBYTES)
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#endif
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/* pages ("clicks") (4096 bytes) to disk blocks */
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#define ctod(x) ((x) << (PGSHIFT - DEV_BSHIFT))
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#define dtoc(x) ((x) >> (PGSHIFT - DEV_BSHIFT))
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/* pages to bytes */
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#define ctob(x) ((x) << PGSHIFT)
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#define btoc(x) (((x) + PGOFSET) >> PGSHIFT)
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/* bytes to disk blocks */
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#define btodb(x) ((x) >> DEV_BSHIFT)
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#define dbtob(x) ((x) << DEV_BSHIFT)
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/*
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* Map a ``block device block'' to a file system block.
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* This should be device dependent, and should use the bsize
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* field from the disk label.
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* For now though just use DEV_BSIZE.
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*/
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#define bdbtofsb(bn) ((bn) / (BLKDEV_IOSIZE/DEV_BSIZE))
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/*
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* Conversion macros
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*/
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#define mips_round_page(x) ((((unsigned)(x)) + NBPG - 1) & ~(NBPG-1))
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#define mips_trunc_page(x) ((unsigned)(x) & ~(NBPG-1))
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#define mips_btop(x) ((unsigned)(x) >> PGSHIFT)
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#define mips_ptob(x) ((unsigned)(x) << PGSHIFT)
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#define round_page mips_round_page
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#define trunc_page mips_trunc_page
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#define atop(x) ((unsigned long)(x) >> PAGE_SHIFT)
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#define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT)
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#define pgtok(x) ((x) * (PAGE_SIZE / 1024))
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#ifndef _KERNEL
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#define DELAY(n) { register int N = (n); while (--N > 0); }
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#endif /* !_KERNEL */
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#endif /* !_MACHINE_PARAM_H_ */
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