Annotation of sys/arch/solbourne/include/param.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: param.h,v 1.6 2007/05/28 21:02:49 thib Exp $ */
! 2: /* OpenBSD: param.h,v 1.29 2004/08/06 22:31:31 mickey Exp */
! 3:
! 4: /*
! 5: * Copyright (c) 1992, 1993
! 6: * The Regents of the University of California. All rights reserved.
! 7: *
! 8: * This software was developed by the Computer Systems Engineering group
! 9: * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
! 10: * contributed to Berkeley.
! 11: *
! 12: * All advertising materials mentioning features or use of this software
! 13: * must display the following acknowledgement:
! 14: * This product includes software developed by the University of
! 15: * California, Lawrence Berkeley Laboratory.
! 16: *
! 17: * Redistribution and use in source and binary forms, with or without
! 18: * modification, are permitted provided that the following conditions
! 19: * are met:
! 20: * 1. Redistributions of source code must retain the above copyright
! 21: * notice, this list of conditions and the following disclaimer.
! 22: * 2. Redistributions in binary form must reproduce the above copyright
! 23: * notice, this list of conditions and the following disclaimer in the
! 24: * documentation and/or other materials provided with the distribution.
! 25: * 3. Neither the name of the University nor the names of its contributors
! 26: * may be used to endorse or promote products derived from this software
! 27: * without specific prior written permission.
! 28: *
! 29: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 30: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 31: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 32: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 33: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 34: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 35: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 36: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 37: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 38: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 39: * SUCH DAMAGE.
! 40: *
! 41: * @(#)param.h 8.1 (Berkeley) 6/11/93
! 42: */
! 43:
! 44: #ifndef _SOLBOURNE_PARAM_H_
! 45: #define _SOLBOURNE_PARAM_H_
! 46:
! 47: #define _MACHINE solbourne
! 48: #define MACHINE "solbourne"
! 49: #define _MACHINE_ARCH sparc
! 50: #define MACHINE_ARCH "sparc"
! 51: #define MID_MACHINE MID_SPARC
! 52:
! 53: #ifdef _KERNEL /* XXX */
! 54: #ifndef _LOCORE /* XXX */
! 55: #include <machine/cpu.h> /* XXX */
! 56: #endif /* XXX */
! 57: #endif /* XXX */
! 58:
! 59: /*
! 60: * Round p (pointer or byte index) up to a correctly-aligned value for
! 61: * the machine's strictest data type. The result is u_int and must be
! 62: * cast to any desired pointer type.
! 63: *
! 64: * ALIGNED_POINTER is a boolean macro that checks whether an address
! 65: * is valid to fetch data elements of type t from on this architecture.
! 66: * This does not reflect the optimal alignment, just the possibility
! 67: * (within reasonable limits).
! 68: *
! 69: */
! 70: #define ALIGNBYTES 7
! 71: #define ALIGN(p) (((u_int)(p) + ALIGNBYTES) & ~ALIGNBYTES)
! 72: #define ALIGNED_POINTER(p,t) ((((u_long)(p)) & (sizeof(t)-1)) == 0)
! 73:
! 74: #define SUN4_PGSHIFT 13 /* for a sun4 machine */
! 75: #define SUN4CM_PGSHIFT 12 /* for a sun4c or sun4m machine */
! 76:
! 77: #define KERNBASE 0xfd080000
! 78: #define KERNTEXTOFF 0xfd084000 /* start of kernel text */
! 79:
! 80: #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
! 81: #define DEV_BSIZE (1 << DEV_BSHIFT)
! 82: #define BLKDEV_IOSIZE 2048
! 83: #define MAXPHYS (64 * 1024)
! 84:
! 85: #define USPACE 8192
! 86: #define USPACE_ALIGN (0) /* u-area alignment 0-none */
! 87:
! 88: /*
! 89: * Constants related to network buffer management.
! 90: */
! 91: #define NMBCLUSTERS 2048 /* map size, max cluster allocation */
! 92:
! 93: #define MSGBUFSIZE PAGE_SIZE /* larger than on sparc! */
! 94: #define MSGBUF_PA PTW1_TO_PHYS(KERNBASE) /* msgbuf physical address */
! 95:
! 96: /*
! 97: * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized
! 98: * logical pages.
! 99: */
! 100: #define NKMEMPAGES_MIN_DEFAULT ((4 * 1024 * 1024) >> PAGE_SHIFT)
! 101: #define NKMEMPAGES_MAX_DEFAULT ((64 * 1024 * 1024) >> PAGE_SHIFT)
! 102:
! 103: /* pages ("clicks") to disk blocks */
! 104: #define ctod(x) ((x) << (PGSHIFT - DEV_BSHIFT))
! 105: #define dtoc(x) ((x) >> (PGSHIFT - DEV_BSHIFT))
! 106:
! 107: /* pages to bytes */
! 108: #define ctob(x) ((x) << PGSHIFT)
! 109: #define btoc(x) (((x) + PGOFSET) >> PGSHIFT)
! 110:
! 111: /* bytes to disk blocks */
! 112: #define btodb(x) ((x) >> DEV_BSHIFT)
! 113: #define dbtob(x) ((x) << DEV_BSHIFT)
! 114:
! 115: /*
! 116: * dvmamap manages a range of DVMA addresses intended to create double
! 117: * mappings of physical memory. In a way, `dvmamap' is a submap of the
! 118: * VM map `phys_map'. The difference is the use of the `resource map'
! 119: * routines to manage page allocation, allowing DVMA addresses to be
! 120: * allocated and freed from within interrupt routines.
! 121: *
! 122: * Note that `phys_map' can still be used to allocate memory-backed pages
! 123: * in DVMA space.
! 124: */
! 125: #ifdef _KERNEL
! 126: #ifndef _LOCORE
! 127: extern vaddr_t dvma_base;
! 128: extern vaddr_t dvma_end;
! 129: extern struct extent *dvmamap_extent;
! 130:
! 131: extern caddr_t kdvma_mapin(caddr_t, int, int);
! 132: extern caddr_t dvma_malloc_space(size_t, void *, int, int);
! 133: extern void dvma_free(caddr_t, size_t, void *);
! 134: #define dvma_malloc(len,kaddr,flags) dvma_malloc_space(len,kaddr,flags,0)
! 135:
! 136: extern void delay(unsigned int);
! 137: #define DELAY(n) delay(n)
! 138:
! 139: extern int cputyp;
! 140: #if 0
! 141: extern int cpumod;
! 142: extern int mmumod;
! 143: #endif
! 144:
! 145: #endif /* _LOCORE */
! 146: #endif /* _KERNEL */
! 147:
! 148: /*
! 149: * Values for the cputyp variable.
! 150: */
! 151: #define CPU_KAP 5
! 152:
! 153: /*
! 154: * Shorthand CPU-type macros.
! 155: * Let compiler optimize away code conditional on constants.
! 156: */
! 157: #define CPU_ISSUN4M (0)
! 158: #define CPU_ISSUN4C (0)
! 159: #define CPU_ISSUN4 (0)
! 160: #define CPU_ISSUN4OR4C (0)
! 161: #define CPU_ISSUN4COR4M (0)
! 162: #define CPU_ISKAP (1)
! 163: #define NBPG 8192
! 164: #define PGOFSET (NBPG - 1)
! 165: #define PGSHIFT SUN4_PGSHIFT
! 166: #define PAGE_SIZE 8192
! 167: #define PAGE_MASK (PAGE_SIZE - 1)
! 168: #define PAGE_SHIFT SUN4_PGSHIFT
! 169:
! 170: #endif /* _SOLBOURNE_PARAM_H_ */
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