/* $NetBSD: param.h,v 1.25 1995/08/18 15:28:25 chopps Exp $ */ /* * Copyright (c) 1988 University of Utah. * Copyright (c) 1982, 1986, 1990 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. * * 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. 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, Berkeley and its contributors. * 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 $Hdr: machparam.h 1.11 89/08/14$ * * @(#)param.h 7.8 (Berkeley) 6/28/91 */ #ifndef _MACHINE_PARAM_H_ #define _MACHINE_PARAM_H_ /* * Machine dependent constants for amiga */ #define MACHINE "amiga" #define MACHINE_ARCH "m68k" #define MID_MACHINE MID_M68K /* * 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 (sizeof(int) - 1) #define ALIGN(p) (((u_int)(p) + (sizeof(int) - 1)) &~ (sizeof(int) - 1)) #define NBPG 8192 /* bytes/page */ #define PGOFSET (NBPG-1) /* byte offset into page */ #define PGSHIFT 13 /* LOG2(NBPG) */ #define NPTEPG (NBPG/(sizeof(u_int))) #define NBSEG ((mmutype == MMU_68040) ? 32*NBPG : 2048*NBPG) /* bytes/segment */ #define SEGOFSET (NBSEG-1) /* byte offset into segment */ #define SEGSHIFT 24 /* LOG2(NBSEG) [68030 value] */ #define KERNBASE 0x0 /* start of kernel virtual */ #define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT) #define DEV_BSIZE 512 #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ #define BLKDEV_IOSIZE 2048 #define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ #define CLSIZE 1 #define CLSIZELOG2 0 /* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */ #define SSIZE 1 /* initial stack size/NBPG */ #define SINCR 1 /* increment of stack/NBPG */ #define UPAGES 2 /* pages of u-area */ #define USPACE (UPAGES * NBPG) /* * Constants related to network buffer management. * MCLBYTES must be no larger than CLBYTES (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 128 /* size of an mbuf */ #define MCLBYTES 1024 #define MCLSHIFT 10 #define MCLOFSET (MCLBYTES - 1) #ifndef NMBCLUSTERS #ifdef GATEWAY #define NMBCLUSTERS 512 /* map size, max cluster allocation */ #else #define NMBCLUSTERS 256 /* map size, max cluster allocation */ #endif #endif /* * Size of kernel malloc arena in CLBYTES-sized logical pages */ #ifndef NKMEMCLUSTERS #define NKMEMCLUSTERS (3072*1024/CLBYTES) #endif #define MAXPARTITIONS 16 /* 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) /* * Map a ``block device block'' to a file system block. * This should be device dependent, and should use the bsize * field from the disk label. * For now though just use DEV_BSIZE. */ #define bdbtofsb(bn) ((bn) / (BLKDEV_IOSIZE/DEV_BSIZE)) /* * Mach derived conversion macros */ #define amiga_round_seg(x) ((((unsigned)(x)) + NBSEG - 1) & ~(NBSEG-1)) #define amiga_trunc_seg(x) ((unsigned)(x) & ~(NBSEG-1)) #define amiga_round_page(x) ((((unsigned)(x)) + NBPG - 1) & ~(NBPG-1)) #define amiga_trunc_page(x) ((unsigned)(x) & ~(NBPG-1)) #define amiga_btop(x) ((unsigned)(x) >> PGSHIFT) #define amiga_ptob(x) ((unsigned)(x) << PGSHIFT) /* * spl functions; all are normally done in-line */ #include /* * point to the custom.intenar and custom.intenaw respectively. */ extern volatile unsigned short *amiga_intena_read, *amiga_intena_write; #if 0 #define _debug_spl(s) \ ({ \ register int _spl_r; \ \ __asm __volatile ("clrl %0; movew sr,%0; movew %1,sr" : \ "&=d" (_spl_r) : "di" (s)); \ if ((_spl_r&PSL_IPL) > ((s)&PSL_IPL)&&((s)&PSL_IPL)!=PSL_IPL1) \ printf ("%s:%d:spl(%d) ==> spl(%d)!!\n",__FILE__,__LINE__, \ ((PSL_IPL&_spl_r)>>8), ((PSL_IPL&(s))>>8)); \ _spl_r; \ }) #else /* * Don't lower IPL below current IPL (unless new IPL is 6) */ #define _debug_spl(s) \ ({ \ register int _spl_r; \ \ __asm __volatile ("clrl %0; movew sr,%0" : \ "&=d" (_spl_r)); \ if ((((s)&PSL_IPL) >= PSL_IPL6) || (_spl_r&PSL_IPL) < ((s)&PSL_IPL) || ((s)&PSL_IPL) <= PSL_IPL1) \ __asm __volatile ("movew %0,sr" : : "di" (s)); \ _spl_r; \ }) #endif #define _spl_no_check(s) \ ({ \ register int _spl_r; \ \ __asm __volatile ("clrl %0; movew sr,%0; movew %1,sr" : \ "&=d" (_spl_r) : "di" (s)); \ _spl_r; \ }) #if defined (DEBUGXX) /* No workee */ #define _spl _debug_spl #else #define _spl _spl_no_check #endif #define spl0() _spl(PSL_S|PSL_IPL0) #define spl1() _spl(PSL_S|PSL_IPL1) #define spl2() _spl(PSL_S|PSL_IPL2) #define spl3() _spl(PSL_S|PSL_IPL3) #define spl4() _spl(PSL_S|PSL_IPL4) #define spl5() _spl(PSL_S|PSL_IPL5) #define spl6() _spl(PSL_S|PSL_IPL6) #define spl7() _spl(PSL_S|PSL_IPL7) #define splnone() spl0() #define splsoftclock() spl1() #define splsoftnet() spl1() #define splbio() spl3() #define splnet() spl3() #define spltty() spl4() #define splimp() spl4() #ifndef LEV6_DEFER #define splclock() spl6() #define splstatclock() spl6() #define splvm() spl6() #define splhigh() spl7() #define splsched() spl7() #else #define splclock() spl4() #define splstatclock() spl4() #define splvm() spl4() #define splhigh() spl4() #define splsched() spl4() #endif #define splx(s) _spl_no_check(s) #ifdef _KERNEL void delay __P((int)); void DELAY __P((int)); #endif #endif /* !_MACHINE_PARAM_H_ */