1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 23*0Sstevel@tonic-gate 24*0Sstevel@tonic-gate /* 25*0Sstevel@tonic-gate * Copyright (c) 1989 by Sun Microsystems, Inc. 26*0Sstevel@tonic-gate * 27*0Sstevel@tonic-gate * This file is intended to contain the basic 28*0Sstevel@tonic-gate * specific details of a given architecture. 29*0Sstevel@tonic-gate */ 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #ifndef _sun4_param_h 32*0Sstevel@tonic-gate #define _sun4_param_h 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate /* 35*0Sstevel@tonic-gate * Machine dependent constants for Sun4. 36*0Sstevel@tonic-gate */ 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate /* 39*0Sstevel@tonic-gate * Define the VAC symbol if we could run on a machine 40*0Sstevel@tonic-gate * which has a Virtual Address Cache (e.g. SUN4_260) 41*0Sstevel@tonic-gate */ 42*0Sstevel@tonic-gate #if defined(SUN4_260) || defined(SUN4_470) || defined(SUN4_330) 43*0Sstevel@tonic-gate #define VAC 44*0Sstevel@tonic-gate #else 45*0Sstevel@tonic-gate #undef VAC 46*0Sstevel@tonic-gate #endif SUN4_260 || SUN4_470 || SUN4_330 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate /* 49*0Sstevel@tonic-gate * Define the FPU symbol if we could run on a machine with an external 50*0Sstevel@tonic-gate * FPU (i.e. not integrated with the normal machine state like the vax). 51*0Sstevel@tonic-gate */ 52*0Sstevel@tonic-gate #define FPU 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate /* 55*0Sstevel@tonic-gate * Define the MMU_3LEVEL symbol if we could run on a machine with 56*0Sstevel@tonic-gate * a three level mmu. We also assume these machines have region 57*0Sstevel@tonic-gate * and user cache flush operations. 58*0Sstevel@tonic-gate */ 59*0Sstevel@tonic-gate #ifdef SUN4_470 60*0Sstevel@tonic-gate #define MMU_3LEVEL 61*0Sstevel@tonic-gate #else 62*0Sstevel@tonic-gate #undef MMU_3LEVEL 63*0Sstevel@tonic-gate #endif SUN4_470 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate /* 66*0Sstevel@tonic-gate * Define IOC if we could run on machines that have an I/O cache. 67*0Sstevel@tonic-gate */ 68*0Sstevel@tonic-gate #ifdef SUN4_470 69*0Sstevel@tonic-gate #define IOC 70*0Sstevel@tonic-gate #else 71*0Sstevel@tonic-gate #undef IOC 72*0Sstevel@tonic-gate #endif SUN4_470 73*0Sstevel@tonic-gate 74*0Sstevel@tonic-gate /* 75*0Sstevel@tonic-gate * Define BCOPY_BUF if we could run on machines that have a bcopy buffer. 76*0Sstevel@tonic-gate */ 77*0Sstevel@tonic-gate #ifdef SUN4_470 78*0Sstevel@tonic-gate #define BCOPY_BUF 79*0Sstevel@tonic-gate #else 80*0Sstevel@tonic-gate #undef BCOPY_BUF 81*0Sstevel@tonic-gate #endif SUN4_470 82*0Sstevel@tonic-gate 83*0Sstevel@tonic-gate /* 84*0Sstevel@tonic-gate * Define VA_HOLE for machines that have a hole in the virtual address space. 85*0Sstevel@tonic-gate */ 86*0Sstevel@tonic-gate #if defined(SUN4_260) || defined(SUN4_110) || defined(SUN4_330) 87*0Sstevel@tonic-gate #define VA_HOLE 88*0Sstevel@tonic-gate #else 89*0Sstevel@tonic-gate #undef VA_HOLE 90*0Sstevel@tonic-gate #endif SUN4_260 || SUN4_110 || SUN4_330 91*0Sstevel@tonic-gate 92*0Sstevel@tonic-gate /* 93*0Sstevel@tonic-gate * MMU_PAGES* describes the physical page size used by the mapping hardware. 94*0Sstevel@tonic-gate * PAGES* describes the logical page size used by the system. 95*0Sstevel@tonic-gate */ 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate #define MMU_PAGESIZE 0x2000 /* 8192 bytes */ 98*0Sstevel@tonic-gate #define MMU_PAGESHIFT 13 /* log2(MMU_PAGESIZE) */ 99*0Sstevel@tonic-gate #define MMU_PAGEOFFSET (MMU_PAGESIZE-1)/* Mask of address bits in page */ 100*0Sstevel@tonic-gate #define MMU_PAGEMASK (~MMU_PAGEOFFSET) 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate #define PAGESIZE 0x2000 /* All of the above, for logical */ 103*0Sstevel@tonic-gate #define PAGESHIFT 13 104*0Sstevel@tonic-gate #define PAGEOFFSET (PAGESIZE - 1) 105*0Sstevel@tonic-gate #define PAGEMASK (~PAGEOFFSET) 106*0Sstevel@tonic-gate 107*0Sstevel@tonic-gate /* 108*0Sstevel@tonic-gate * DATA_ALIGN is used to define the alignment of the Unix data segment. 109*0Sstevel@tonic-gate */ 110*0Sstevel@tonic-gate #define DATA_ALIGN 0x2000 111*0Sstevel@tonic-gate 112*0Sstevel@tonic-gate /* 113*0Sstevel@tonic-gate * Some random macros for units conversion. 114*0Sstevel@tonic-gate */ 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate /* 117*0Sstevel@tonic-gate * MMU pages to bytes, and back (with and without rounding) 118*0Sstevel@tonic-gate */ 119*0Sstevel@tonic-gate #define mmu_ptob(x) ((x) << MMU_PAGESHIFT) 120*0Sstevel@tonic-gate #define mmu_btop(x) (((unsigned)(x)) >> MMU_PAGESHIFT) 121*0Sstevel@tonic-gate #define mmu_btopr(x) ((((unsigned)(x) + MMU_PAGEOFFSET) >> MMU_PAGESHIFT)) 122*0Sstevel@tonic-gate 123*0Sstevel@tonic-gate /* 124*0Sstevel@tonic-gate * pages to bytes, and back (with and without rounding) 125*0Sstevel@tonic-gate */ 126*0Sstevel@tonic-gate #define ptob(x) ((x) << PAGESHIFT) 127*0Sstevel@tonic-gate #define btop(x) (((unsigned)(x)) >> PAGESHIFT) 128*0Sstevel@tonic-gate #define btopr(x) ((((unsigned)(x) + PAGEOFFSET) >> PAGESHIFT)) 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate /* 131*0Sstevel@tonic-gate * 2 versions of pages to disk blocks 132*0Sstevel@tonic-gate */ 133*0Sstevel@tonic-gate #define mmu_ptod(x) ((x) << (MMU_PAGESHIFT - DEV_BSHIFT)) 134*0Sstevel@tonic-gate #define ptod(x) ((x) << (PAGESHIFT - DEV_BSHIFT)) 135*0Sstevel@tonic-gate 136*0Sstevel@tonic-gate /* 137*0Sstevel@tonic-gate * Delay units are in microseconds. 138*0Sstevel@tonic-gate */ 139*0Sstevel@tonic-gate #define DELAY(n) usec_delay(n) 140*0Sstevel@tonic-gate #define CDELAY(c, n) \ 141*0Sstevel@tonic-gate { \ 142*0Sstevel@tonic-gate register int N = n; \ 143*0Sstevel@tonic-gate while (--N > 0) { \ 144*0Sstevel@tonic-gate if (c) \ 145*0Sstevel@tonic-gate break; \ 146*0Sstevel@tonic-gate usec_delay(1); \ 147*0Sstevel@tonic-gate } \ 148*0Sstevel@tonic-gate } 149*0Sstevel@tonic-gate 150*0Sstevel@tonic-gate #define UPAGES 2 /* pages of u-area, NOT including red zone */ 151*0Sstevel@tonic-gate #define KERNSTACK 0x3000 /* size of kernel stack in u-area */ 152*0Sstevel@tonic-gate 153*0Sstevel@tonic-gate /* 154*0Sstevel@tonic-gate * KERNSIZE the amount of vitual address space the kernel 155*0Sstevel@tonic-gate * uses in all contexts. 156*0Sstevel@tonic-gate */ 157*0Sstevel@tonic-gate #define KERNELSIZE (128*1024*1024) 158*0Sstevel@tonic-gate 159*0Sstevel@tonic-gate /* 160*0Sstevel@tonic-gate * KERNELBASE is the virtual address which 161*0Sstevel@tonic-gate * the kernel text/data mapping starts in all contexts. 162*0Sstevel@tonic-gate */ 163*0Sstevel@tonic-gate #define KERNELBASE (0-KERNELSIZE) 164*0Sstevel@tonic-gate 165*0Sstevel@tonic-gate /* 166*0Sstevel@tonic-gate * SYSBASE is the virtual address which 167*0Sstevel@tonic-gate * the kernel allocated memory mapping starts in all contexts. 168*0Sstevel@tonic-gate */ 169*0Sstevel@tonic-gate #define SYSBASE (0-(16*1024*1024)) 170*0Sstevel@tonic-gate 171*0Sstevel@tonic-gate /* 172*0Sstevel@tonic-gate * Msgbuf size. 173*0Sstevel@tonic-gate */ 174*0Sstevel@tonic-gate #define MSG_BSIZE ((7 * 1024) - sizeof (struct msgbuf_hd)) 175*0Sstevel@tonic-gate 176*0Sstevel@tonic-gate /* 177*0Sstevel@tonic-gate * XXX - Macros for compatibility 178*0Sstevel@tonic-gate */ 179*0Sstevel@tonic-gate /* Clicks (MMU PAGES) to disk blocks */ 180*0Sstevel@tonic-gate #define ctod(x) mmu_ptod(x) 181*0Sstevel@tonic-gate 182*0Sstevel@tonic-gate /* Clicks (MMU PAGES) to bytes, and back (with rounding) */ 183*0Sstevel@tonic-gate #define ctob(x) mmu_ptob(x) 184*0Sstevel@tonic-gate #define btoc(x) mmu_btopr(x) 185*0Sstevel@tonic-gate 186*0Sstevel@tonic-gate /* 187*0Sstevel@tonic-gate * XXX - Old names for some backwards compatibility 188*0Sstevel@tonic-gate */ 189*0Sstevel@tonic-gate #define NBPG MMU_PAGESIZE 190*0Sstevel@tonic-gate #define PGOFSET MMU_PAGEOFFSET 191*0Sstevel@tonic-gate #define PGSHIFT MMU_PAGESHIFT 192*0Sstevel@tonic-gate 193*0Sstevel@tonic-gate #define CLSIZE 1 194*0Sstevel@tonic-gate #define CLSIZELOG2 0 195*0Sstevel@tonic-gate #define CLBYTES PAGESIZE 196*0Sstevel@tonic-gate #define CLOFSET PAGEOFFSET 197*0Sstevel@tonic-gate #define CLSHIFT PAGESHIFT 198*0Sstevel@tonic-gate #define clrnd(i) (i) 199*0Sstevel@tonic-gate 200*0Sstevel@tonic-gate #endif /*!_sun4_param_h*/ 201