/* $NetBSD: param.h,v 1.77 2026/05/10 16:07:56 thorpej Exp $ */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratory. * * 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. * * @(#)param.h 8.1 (Berkeley) 6/11/93 */ /* * Sun4M support by Aaron Brown, Harvard University. * Changes Copyright (c) 1995 The President and Fellows of Harvard College. * All rights reserved. */ #define _MACHINE sparc #define MACHINE "sparc" #define _MACHINE_ARCH sparc #define MACHINE_ARCH "sparc" #define MID_MACHINE MID_SPARC #include <machine/cpuconf.h> /* XXX */ #ifdef _KERNEL /* XXX */ #ifndef _LOCORE /* XXX */ #include <machine/cpu.h> /* XXX */ #endif /* XXX */ #endif /* XXX */ #define SUN4_PGSHIFT 13 /* for a sun4 machine */ #define SUN4CM_PGSHIFT 12 /* for a sun4c or sun4m machine */ #define STACK_ALIGNBYTES (8 - 1) /* * The following variables are always defined and initialized (in locore) * so independently compiled modules (e.g. LKMs) can be used irrespective * of the `options SUN4?' combination a particular kernel was configured with. * See also the definitions of NBPG, PGOFSET and PGSHIFT below. */ #if (defined(_KERNEL) || defined(_STANDALONE)) && !defined(_LOCORE) extern int nbpg, pgofset, pgshift; #endif #if !(defined(PROM_AT_F0) || defined(MSIIEP)) #define KERNBASE 0xf0000000 /* start of kernel virtual space */ #else /* * JS1/OF has prom sitting in f000.0000..f007.ffff, modify kernel VA * layout to work around that. XXX - kernel should live beyond prom on * those machines. */ #define KERNBASE 0xe8000000 #endif #define KERNEND 0xfe000000 /* end of kernel virtual space */ #define PROM_LOADADDR 0x00004000 /* where the prom loads us */ #define KERNTEXTOFF (KERNBASE+PROM_LOADADDR)/* start of kernel text */ #define USPACE 8192 /* * Constants related to network buffer management. * MCLBYTES must be no larger than NBPG (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 */ #ifndef MCLSHIFT #define MCLSHIFT 11 /* convert bytes to m_buf clusters */ /* 2K cluster can hold Ether frame */ #endif /* MCLSHIFT */ #define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ /* * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized * logical pages. */ #define NKMEMPAGES_MIN_DEFAULT ((16 * 1024 * 1024) >> PAGE_SHIFT) #define NKMEMPAGES_MAX_DEFAULT ((128 * 1024 * 1024) >> PAGE_SHIFT) #if defined(_KERNEL) || defined(_STANDALONE) #ifndef _LOCORE #ifndef __HIDE_DELAY extern void delay(unsigned int); #define DELAY(n) delay(n) #endif /* __HIDE_DELAY */ #endif /* _LOCORE */ /* * microSPARC-IIep is a sun4m but with an integrated PCI controller. * In a lot of places (like pmap &c) we want it to be treated as SUN4M. * But since various low-level things are done very differently from * normal sparcs (and since for now it requires a relocated kernel * anyway), the MSIIEP kernels are not supposed to support any other * system. So insist on SUN4M defined and SUN4 and SUN4C not defined. */ #if defined(MSIIEP) #if defined(SUN4) || defined(SUN4C) || defined(SUN4D) #error "microSPARC-IIep kernels cannot support sun4, sun4c, or sun4d" #endif #if !defined(SUN4M) #error "microSPARC-IIep kernel must have 'options SUN4M'" #endif #endif /* MSIIEP */ /* * Sun4 machines have a page size of 8192. All other machines have a page * size of 4096. Short cut page size variables if we can. */ #if CPU_NTYPES != 0 && !defined(SUN4) # define NBPG 4096 # define PGOFSET (NBPG-1) # define PGSHIFT SUN4CM_PGSHIFT #elif CPU_NTYPES == 1 && defined(SUN4) # define NBPG 8192 # define PGOFSET (NBPG-1) # define PGSHIFT SUN4_PGSHIFT #else # define NBPG nbpg # define PGOFSET pgofset # define PGSHIFT pgshift #endif /* Default audio blocksize in msec. See sys/dev/audio/audio.c */ #define __AUDIO_BLK_MS (40) #endif /* _KERNEL || _STANDALONE */
