1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1991, by Sun Microsystems, Inc. 24 */ 25 26 #ifndef _SYS_SCB_H 27 #define _SYS_SCB_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #define VEC_MIN 0 36 #define VEC_MAX 255 37 #define AUTOBASE 16 /* base for autovectored ints */ 38 39 #ifndef _ASM 40 41 typedef struct trapvec { 42 int instr[8]; 43 } trapvec; 44 45 /* 46 * Sparc9 System control block layout 47 */ 48 struct scb { 49 trapvec tl0_hwtraps[256]; /* 0 - 255 tl0 hw traps */ 50 trapvec tl0_swtraps[256]; /* 256 - 511 tl0 sw traps */ 51 trapvec tl1_hwtraps[256]; /* 512 - 767 tl>0 hw traps */ 52 /* we don't use tl>0 sw traps */ 53 }; 54 55 #ifdef _KERNEL 56 extern struct scb scb; 57 #endif /* _KERNEL */ 58 59 #endif /* _ASM */ 60 61 /* 62 * These defines are used by the TL1 tlb miss handlers to calculate 63 * the pc to jump to in the case the entry was not found in the TSB. 64 */ 65 #define WTRAP_ALIGN 0x7f /* window handlers are 128 byte align */ 66 #define WTRAP_FAULTOFF 124 /* last instruction in handler */ 67 68 /* use the following defines to determine if trap was a fill or a spill */ 69 #define WTRAP_TTMASK 0x180 70 #define WTRAP_TYPE 0x080 71 72 73 #ifdef __cplusplus 74 } 75 #endif 76 77 #endif /* _SYS_SCB_H */ 78