/* $OpenBSD: param.h,v 1.4 2006/03/19 01:47:24 martin Exp $ */ /* OpenBSD: param.h,v 1.29 2004/08/06 22:31:31 mickey 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 */ #ifndef _SOLBOURNE_PARAM_H_ #define _SOLBOURNE_PARAM_H_ #define _MACHINE solbourne #define MACHINE "solbourne" #define _MACHINE_ARCH sparc #define MACHINE_ARCH "sparc" #define MID_MACHINE MID_SPARC #ifdef _KERNEL /* XXX */ #ifndef _LOCORE /* XXX */ #include /* XXX */ #endif /* XXX */ #endif /* XXX */ /* * Round p (pointer or byte index) up to a correctly-aligned value for * the machine's strictest data type. The result is u_int and must be * cast to any desired pointer type. * * 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 ALIGNBYTES 7 #define ALIGN(p) (((u_int)(p) + ALIGNBYTES) & ~ALIGNBYTES) #define ALIGNED_POINTER(p,t) ((((u_long)(p)) & (sizeof(t)-1)) == 0) #define SUN4_PGSHIFT 13 /* for a sun4 machine */ #define SUN4CM_PGSHIFT 12 /* for a sun4c or sun4m machine */ #define KERNBASE 0xfd080000 #define KERNTEXTOFF 0xfd084000 /* start of kernel text */ #define DEV_BSIZE 512 #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ #define BLKDEV_IOSIZE 2048 #define MAXPHYS (64 * 1024) #define USPACE 8192 #define USPACE_ALIGN (0) /* u-area alignment 0-none */ /* * Constants related to network buffer management. * MCLBYTES must be no larger than 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 */ #define MCLSHIFT 11 /* log2(MCLBYTES) */ #define MCLBYTES (1 << MCLSHIFT) /* enough for whole Ethernet packet */ #define MCLOFSET (MCLBYTES - 1) #define NMBCLUSTERS 2048 /* map size, max cluster allocation */ #define MSGBUFSIZE PAGE_SIZE /* larger than on sparc! */ #define MSGBUF_PA PTW1_TO_PHYS(KERNBASE) /* msgbuf physical address */ /* * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized * logical pages. */ #define NKMEMPAGES_MIN_DEFAULT ((4 * 1024 * 1024) >> PAGE_SHIFT) #define NKMEMPAGES_MAX_DEFAULT ((64 * 1024 * 1024) >> PAGE_SHIFT) /* pages ("clicks") 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) (((x) + PGOFSET) >> PGSHIFT) /* bytes to disk blocks */ #define btodb(x) ((x) >> DEV_BSHIFT) #define dbtob(x) ((x) << DEV_BSHIFT) /* * dvmamap manages a range of DVMA addresses intended to create double * mappings of physical memory. In a way, `dvmamap' is a submap of the * VM map `phys_map'. The difference is the use of the `resource map' * routines to manage page allocation, allowing DVMA addresses to be * allocated and freed from within interrupt routines. * * Note that `phys_map' can still be used to allocate memory-backed pages * in DVMA space. */ #ifdef _KERNEL #ifndef _LOCORE extern vaddr_t dvma_base; extern vaddr_t dvma_end; extern struct extent *dvmamap_extent; extern caddr_t kdvma_mapin(caddr_t, int, int); extern caddr_t dvma_malloc_space(size_t, void *, int, int); extern void dvma_free(caddr_t, size_t, void *); #define dvma_malloc(len,kaddr,flags) dvma_malloc_space(len,kaddr,flags,0) extern void delay(unsigned int); #define DELAY(n) delay(n) extern int cputyp; #if 0 extern int cpumod; extern int mmumod; #endif #endif /* _LOCORE */ #endif /* _KERNEL */ /* * Values for the cputyp variable. */ #define CPU_KAP 5 /* * Shorthand CPU-type macros. * Let compiler optimize away code conditional on constants. */ #define CPU_ISSUN4M (0) #define CPU_ISSUN4C (0) #define CPU_ISSUN4 (0) #define CPU_ISSUN4OR4C (0) #define CPU_ISSUN4COR4M (0) #define CPU_ISKAP (1) #define NBPG 8192 #define PGOFSET (NBPG - 1) #define PGSHIFT SUN4_PGSHIFT #define PAGE_SIZE 8192 #define PAGE_MASK (PAGE_SIZE - 1) #define PAGE_SHIFT SUN4_PGSHIFT #endif /* _SOLBOURNE_PARAM_H_ */