941646f5ec
order to match the MAXCPU concept. The change should also be useful for consolidation and consistency. Sponsored by: EMC / Isilon storage division Obtained from: jeff Reviewed by: alc
182 lines
5.5 KiB
C
182 lines
5.5 KiB
C
/* $OpenBSD: param.h,v 1.11 1998/08/30 22:05:35 millert Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1988 University of Utah.
|
|
* Copyright (c) 1992, 1993
|
|
* 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 and Ralph Campbell.
|
|
*
|
|
* 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.
|
|
* 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
|
|
* from: @(#)param.h 8.1 (Berkeley) 6/10/93
|
|
* JNPR: param.h,v 1.6.2.1 2007/09/10 07:49:36 girish
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MIPS_INCLUDE_PARAM_H_
|
|
#define _MIPS_INCLUDE_PARAM_H_
|
|
|
|
#include <machine/_align.h>
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifdef _KERNEL
|
|
#ifndef _LOCORE
|
|
#include <machine/cpu.h>
|
|
#endif
|
|
#endif
|
|
|
|
#define __PCI_REROUTE_INTERRUPT
|
|
|
|
#ifndef MACHINE
|
|
#define MACHINE "mips"
|
|
#endif
|
|
#ifndef MACHINE_ARCH
|
|
#if _BYTE_ORDER == _BIG_ENDIAN
|
|
#ifdef __mips_n64
|
|
#define MACHINE_ARCH "mips64"
|
|
#ifndef MACHINE_ARCH32
|
|
#define MACHINE_ARCH32 "mips"
|
|
#endif
|
|
#elif defined(__mips_n32)
|
|
#define MACHINE_ARCH "mipsn32"
|
|
#else
|
|
#define MACHINE_ARCH "mips"
|
|
#endif
|
|
#else
|
|
#ifdef __mips_n64
|
|
#define MACHINE_ARCH "mips64el"
|
|
#ifndef MACHINE_ARCH32
|
|
#define MACHINE_ARCH32 "mipsel"
|
|
#endif
|
|
#elif defined(__mips_n32)
|
|
#define MACHINE_ARCH "mipsn32el"
|
|
#else
|
|
#define MACHINE_ARCH "mipsel"
|
|
#endif
|
|
#endif
|
|
#endif
|
|
|
|
/*
|
|
* OBJFORMAT_NAMES is a comma-separated list of the object formats
|
|
* that are supported on the architecture.
|
|
*/
|
|
#define OBJFORMAT_NAMES "elf"
|
|
#define OBJFORMAT_DEFAULT "elf"
|
|
|
|
#define MID_MACHINE 0 /* None but has to be defined */
|
|
|
|
#ifdef SMP
|
|
#define MAXSMPCPU 32
|
|
#ifndef MAXCPU
|
|
#define MAXCPU MAXSMPCPU
|
|
#endif
|
|
#else
|
|
#define MAXSMPCPU 1
|
|
#define MAXCPU 1
|
|
#endif
|
|
|
|
#ifndef MAXMEMDOM
|
|
#define MAXMEMDOM 1
|
|
#endif
|
|
|
|
/*
|
|
* 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 _ALIGNBYTES
|
|
#define ALIGN(p) _ALIGN(p)
|
|
/*
|
|
* ALIGNED_POINTER is a boolean macro that checks whether an address
|
|
* is valid to fetch data elements of type t from on this architecture.
|
|
* This does not reflect the optimal alignment, just the possibility
|
|
* (within reasonable limits).
|
|
*/
|
|
#define ALIGNED_POINTER(p, t) ((((unsigned long)(p)) & (sizeof (t) - 1)) == 0)
|
|
|
|
/*
|
|
* CACHE_LINE_SIZE is the compile-time maximum cache line size for an
|
|
* architecture. It should be used with appropriate caution.
|
|
*/
|
|
#define CACHE_LINE_SHIFT 6
|
|
#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT)
|
|
|
|
#define PAGE_SHIFT 12 /* LOG2(PAGE_SIZE) */
|
|
#define PAGE_SIZE (1<<PAGE_SHIFT) /* bytes/page */
|
|
#define PAGE_MASK (PAGE_SIZE-1)
|
|
|
|
#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t)))
|
|
#define NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t)))
|
|
|
|
#if defined(__mips_n32) || defined(__mips_n64) /* PHYSADDR_64_BIT */
|
|
#define NPTEPGSHIFT 9 /* LOG2(NPTEPG) */
|
|
#else
|
|
#define NPTEPGSHIFT 10 /* LOG2(NPTEPG) */
|
|
#endif
|
|
|
|
#ifdef __mips_n64
|
|
#define NPDEPGSHIFT 9 /* LOG2(NPTEPG) */
|
|
#define SEGSHIFT (PAGE_SHIFT + NPTEPGSHIFT + NPDEPGSHIFT)
|
|
#define NBSEG (1ul << SEGSHIFT)
|
|
#define PDRSHIFT (PAGE_SHIFT + NPTEPGSHIFT)
|
|
#define PDRMASK ((1 << PDRSHIFT) - 1)
|
|
#else
|
|
#define NPDEPGSHIFT 10 /* LOG2(NPTEPG) */
|
|
#define SEGSHIFT (PAGE_SHIFT + NPTEPGSHIFT)
|
|
#define NBSEG (1 << SEGSHIFT) /* bytes/segment */
|
|
#define PDRSHIFT SEGSHIFT /* alias for SEG in 32 bit */
|
|
#define PDRMASK ((1 << PDRSHIFT) - 1)
|
|
#endif
|
|
#define NBPDR (1 << PDRSHIFT) /* bytes/pagedir */
|
|
#define SEGMASK (NBSEG - 1) /* byte offset into segment */
|
|
|
|
#define MAXPAGESIZES 1 /* max supported pagesizes */
|
|
|
|
#define MAXDUMPPGS 1 /* xxx: why is this only one? */
|
|
|
|
/*
|
|
* The kernel stack needs to be aligned on a (PAGE_SIZE * 2) boundary.
|
|
*/
|
|
#define KSTACK_PAGES 2 /* kernel stack */
|
|
#define KSTACK_GUARD_PAGES 2 /* pages of kstack guard; 0 disables */
|
|
|
|
/*
|
|
* Mach derived conversion macros
|
|
*/
|
|
#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK)
|
|
#define trunc_page(x) ((x) & ~PAGE_MASK)
|
|
|
|
#define atop(x) ((x) >> PAGE_SHIFT)
|
|
#define ptoa(x) ((x) << PAGE_SHIFT)
|
|
|
|
#define pgtok(x) ((x) * (PAGE_SIZE / 1024))
|
|
|
|
#endif /* !_MIPS_INCLUDE_PARAM_H_ */
|