51369649b0
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
193 lines
5.7 KiB
C
193 lines
5.7 KiB
C
/* $OpenBSD: param.h,v 1.11 1998/08/30 22:05:35 millert Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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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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* 3. 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 _MIPS_INCLUDE_PARAM_H_
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#define _MIPS_INCLUDE_PARAM_H_
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#include <machine/_align.h>
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#include <sys/cdefs.h>
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#ifdef _KERNEL
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#ifndef _LOCORE
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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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#if _BYTE_ORDER == _BIG_ENDIAN
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# define _EL_SUFFIX ""
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#else
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# define _EL_SUFFIX "el"
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#endif
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#ifdef __mips_n64
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# define _N64_SUFFIX "64"
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#elif defined(__mips_n32)
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# define _N64_SUFFIX "n32"
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#else
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# define _N64_SUFFIX ""
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#endif
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#ifdef __mips_hard_float
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# define _HF_SUFFIX "hf"
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#else
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# define _HF_SUFFIX ""
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#endif
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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" _N64_SUFFIX _EL_SUFFIX _HF_SUFFIX
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#endif
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#ifdef __mips_n64
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# ifndef MACHINE_ARCH32
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# define MACHINE_ARCH32 "mips" _EL_SUFFIX _HF_SUFFIX
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# endif
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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 32
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#ifndef MAXCPU
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#define MAXCPU MAXSMPCPU
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#endif
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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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#ifndef MAXMEMDOM
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#define MAXMEMDOM 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 _ALIGNBYTES
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#define ALIGN(p) _ALIGN(p)
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/*
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* ALIGNED_POINTER is a boolean macro that checks whether an address
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* is valid to fetch data elements of type t from on this architecture.
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* This does not reflect the optimal alignment, just the possibility
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* (within reasonable limits).
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*/
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#define ALIGNED_POINTER(p, t) ((((unsigned long)(p)) & (sizeof (t) - 1)) == 0)
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/*
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* CACHE_LINE_SIZE is the compile-time maximum cache line size for an
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* architecture. It should be used with appropriate caution.
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*/
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#define CACHE_LINE_SHIFT 6
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#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT)
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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 NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t)))
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#if defined(__mips_n32) || defined(__mips_n64) /* PHYSADDR_64_BIT */
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#define NPTEPGSHIFT 9 /* LOG2(NPTEPG) */
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#else
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#define NPTEPGSHIFT 10 /* LOG2(NPTEPG) */
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#endif
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#ifdef __mips_n64
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#define NPDEPGSHIFT 9 /* LOG2(NPTEPG) */
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#define SEGSHIFT (PAGE_SHIFT + NPTEPGSHIFT + NPDEPGSHIFT)
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#define NBSEG (1ul << SEGSHIFT)
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#define PDRSHIFT (PAGE_SHIFT + NPTEPGSHIFT)
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#define PDRSIZE (1ul << PDRSHIFT)
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#define PDRMASK ((1 << PDRSHIFT) - 1)
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#else
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#define NPDEPGSHIFT 10 /* LOG2(NPTEPG) */
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#define SEGSHIFT (PAGE_SHIFT + NPTEPGSHIFT)
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#define NBSEG (1 << SEGSHIFT) /* bytes/segment */
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#define PDRSHIFT SEGSHIFT /* alias for SEG in 32 bit */
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#define PDRSIZE (1ul << PDRSHIFT)
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#define PDRMASK ((1 << PDRSHIFT) - 1)
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#endif
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#define NBPDR (1 << PDRSHIFT) /* bytes/pagedir */
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#define SEGMASK (NBSEG - 1) /* byte offset into segment */
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#define MAXPAGESIZES 1 /* max supported pagesizes */
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#define MAXDUMPPGS 1 /* xxx: why is this only one? */
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/*
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* The kernel stack needs to be aligned on a (PAGE_SIZE * 2) boundary.
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*/
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#define KSTACK_PAGES 2 /* kernel stack */
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#define KSTACK_GUARD_PAGES 2 /* pages of kstack guard; 0 disables */
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/*
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* Mach derived conversion macros
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*/
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#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK)
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#define trunc_page(x) ((x) & ~PAGE_MASK)
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#define atop(x) ((x) >> PAGE_SHIFT)
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#define ptoa(x) ((x) << PAGE_SHIFT)
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#define pgtok(x) ((x) * (PAGE_SIZE / 1024))
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#ifdef _KERNEL
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#define NO_FUEWORD 1
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#endif
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#endif /* !_MIPS_INCLUDE_PARAM_H_ */
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