1 /* $OpenBSD: param.h,v 1.40 2016/09/03 14:25:27 bluhm Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department and Ralph Campbell. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef _MACHINE_PARAM_H_ 38 #define _MACHINE_PARAM_H_ 39 40 #define _MACHINE alpha 41 #define MACHINE "alpha" 42 #define _MACHINE_ARCH alpha 43 #define MACHINE_ARCH "alpha" 44 #define MID_MACHINE MID_ALPHA 45 46 #ifdef _KERNEL 47 #include <machine/cpu.h> 48 #endif 49 50 #define PAGE_SHIFT 13 51 #define PAGE_SIZE (1 << PAGE_SHIFT) 52 #define PAGE_MASK (PAGE_SIZE - 1) 53 54 #define KERNBASE 0xfffffc0000580000 /* start of kernel virtual */ 55 56 #ifdef _KERNEL 57 58 #define NBPG PAGE_SIZE /* bytes/page */ 59 #define PGSHIFT PAGE_SHIFT /* LOG2(PAGE_SIZE) */ 60 #define PGOFSET PAGE_MASK /* byte offset into page */ 61 62 #define UPAGES 2 /* pages of u-area */ 63 #define USPACE (UPAGES * PAGE_SIZE) /* total size of u-area */ 64 #define USPACE_ALIGN 0 /* u-area alignment 0-none */ 65 66 #define NMBCLUSTERS (16 * 1024) /* max cluster allocation */ 67 68 #ifndef MSGBUFSIZE 69 #define MSGBUFSIZE (2 * PAGE_SIZE) /* default message buffer size */ 70 #endif 71 72 /* 73 * Maximum size of the kernel malloc arena in PAGE_SIZE-sized 74 * logical pages. 75 */ 76 #define NKMEMPAGES_MAX_DEFAULT ((128 * 1024 * 1024) >> PAGE_SHIFT) 77 78 #ifndef _LOCORE 79 80 #include <machine/intr.h> 81 82 void delay(unsigned long); 83 #define DELAY(n) delay(n) 84 85 /* XXX THE FOLLOWING PROTOTYPE BELONGS IN INTR.H */ 86 int spl0(void); /* drop ipl to zero */ 87 /* XXX END INTR.H */ 88 89 /* XXX THE FOLLOWING PROTOTYPE SHOULD BE A BUS.H INTERFACE */ 90 paddr_t alpha_XXX_dmamap(vaddr_t); 91 /* XXX END BUS.H */ 92 93 #endif 94 #endif /* !_KERNEL */ 95 96 #endif /* _MACHINE_PARAM_H_ */ 97