1 1.3 matt /* $NetBSD: tc_machdep.h,v 1.3 2008/03/11 05:34:02 matt Exp $ */ 2 1.1 matt 3 1.1 matt /* 4 1.1 matt * Copyright (c) 1994, 1995 Carnegie-Mellon University. 5 1.1 matt * All rights reserved. 6 1.1 matt * 7 1.1 matt * Author: Jonathan Stone, Chris G. Demetriou 8 1.1 matt * 9 1.1 matt * Permission to use, copy, modify and distribute this software and 10 1.1 matt * its documentation is hereby granted, provided that both the copyright 11 1.1 matt * notice and this permission notice appear in all copies of the 12 1.1 matt * software, derivative works or modified versions, and any portions 13 1.1 matt * thereof, and that both notices appear in supporting documentation. 14 1.1 matt * 15 1.1 matt * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 1.1 matt * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 1.1 matt * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 1.1 matt * 19 1.1 matt * Carnegie Mellon requests users of this software to return to 20 1.1 matt * 21 1.1 matt * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 22 1.1 matt * School of Computer Science 23 1.1 matt * Carnegie Mellon University 24 1.1 matt * Pittsburgh PA 15213-3890 25 1.1 matt * 26 1.1 matt * any improvements or extensions that they make and grant Carnegie the 27 1.1 matt * rights to redistribute these changes. 28 1.1 matt */ 29 1.1 matt 30 1.1 matt /* 31 1.1 matt * Machine-specific definitions for TURBOchannel support. 32 1.1 matt * 33 1.1 matt * This file must typedef the following types: 34 1.1 matt * 35 1.1 matt * tc_addr_t TURBOchannel bus address 36 1.1 matt * tc_offset_t TURBOchannel bus address difference (offset) 37 1.1 matt * 38 1.1 matt * This file must prototype or define the following functions 39 1.1 matt * or macros (one or more of which may be no-ops): 40 1.1 matt * 41 1.1 matt * tc_mb() read/write memory barrier (any CPU<->memory 42 1.1 matt * reads/writes before must complete before any 43 1.1 matt * CPU<->memory reads/writes after). 44 1.1 matt * tc_wmb() write memory barrier (any CPU<->memory writes 45 1.1 matt * before must complete before any CPU<->memory 46 1.1 matt * writes after). 47 1.1 matt * tc_syncbus() sync TC bus; make sure CPU writes are 48 1.1 matt * propagated across the TURBOchannel bus. 49 1.1 matt * tc_badaddr() return non-zero if the given address is invalid. 50 1.1 matt * TC_DENSE_TO_SPARSE() 51 1.1 matt * convert the given physical address in 52 1.1 matt * TURBOchannel dense space to the corresponding 53 1.1 matt * address in TURBOchannel sparse space. 54 1.1 matt * TC_PHYS_TO_UNCACHED() 55 1.1 matt * convert the given system memory physical address 56 1.1 matt * to the physical address of the corresponding 57 1.1 matt * region that is not cached. 58 1.1 matt */ 59 1.1 matt 60 1.1 matt #ifndef _VAX_TC_MACHDEP_H_ 61 1.1 matt #define _VAX_TC_MACHDEP_H_ 62 1.1 matt 63 1.2 matt #include <machine/cpu.h> /* for badaddr */ 64 1.2 matt 65 1.1 matt typedef uint32_t tc_addr_t; 66 1.1 matt typedef uint32_t tc_offset_t; 67 1.1 matt 68 1.1 matt #define tc_mb() do { } while (/*CONSTCOND*/ 0) 69 1.1 matt #define tc_wmb() do { } while (/*CONSTCOND*/ 0) 70 1.1 matt #define tc_syncbus() do { } while (/*CONSTCOND*/ 0) 71 1.1 matt 72 1.1 matt #define tc_badaddr(tcaddr) badaddr((void *)(tcaddr), sizeof (uint32_t)) 73 1.1 matt 74 1.1 matt #define TC_DENSE_TO_SPARSE(addr) (addr) 75 1.1 matt #define TC_PHYS_TO_UNCACHED(addr) (addr) 76 1.3 matt #define VAX_PHYS_TO_S0(addr) ((addr) | KERNBASE) 77 1.1 matt 78 1.1 matt /* 79 1.1 matt * Use the following macros to compare device names on a vax, as 80 1.1 matt * the autoconfig structs are in a state of flux. 81 1.1 matt */ 82 1.1 matt #define TC_BUS_MATCHNAME(ta, name) \ 83 1.1 matt (strncmp( (ta)->ta_modname, (name), TC_ROM_LLEN+1) == 0) 84 1.1 matt 85 1.1 matt #endif /* _VAX_TC_MACHDEP_H_ */ 86