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      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