| /* |
| * Copyright (c) 2006 Tensilica, Inc. All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of version 2.1 of the GNU Lesser General Public |
| * License as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * Further, this software is distributed without any warranty that it is |
| * free of the rightful claim of any third person regarding infringement |
| * or the like. Any license provided herein, whether implied or |
| * otherwise, applies only to this software file. Patent licenses, if |
| * any, provided herein do not apply to combinations of this program with |
| * other software, or any other product whatsoever. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this program; if not, write the Free Software |
| * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, |
| * USA. |
| */ |
| |
| #ifndef _XTENSA_REGS_H |
| #define _XTENSA_REGS_H |
| |
| /* Special registers. */ |
| |
| #define SREG_MR 32 |
| #define SREG_IBREAKA 128 |
| #define SREG_DBREAKA 144 |
| #define SREG_DBREAKC 160 |
| #define SREG_EPC 176 |
| #define SREG_EPS 192 |
| #define SREG_EXCSAVE 208 |
| #define SREG_CCOMPARE 240 |
| #define SREG_MISC 244 |
| |
| /* EXCCAUSE register fields */ |
| |
| #define EXCCAUSE_EXCCAUSE_SHIFT 0 |
| #define EXCCAUSE_EXCCAUSE_MASK 0x3F |
| |
| #define EXCCAUSE_ILLEGAL_INSTRUCTION 0 |
| #define EXCCAUSE_SYSTEM_CALL 1 |
| #define EXCCAUSE_INSTRUCTION_FETCH_ERROR 2 |
| #define EXCCAUSE_LOAD_STORE_ERROR 3 |
| #define EXCCAUSE_LEVEL1_INTERRUPT 4 |
| #define EXCCAUSE_ALLOCA 5 |
| #define EXCCAUSE_INTEGER_DIVIDE_BY_ZERO 6 |
| #define EXCCAUSE_SPECULATION 7 |
| #define EXCCAUSE_PRIVILEGED 8 |
| #define EXCCAUSE_UNALIGNED 9 |
| #define EXCCAUSE_ITLB_MISS 16 |
| #define EXCCAUSE_ITLB_MULTIHIT 17 |
| #define EXCCAUSE_ITLB_PRIVILEGE 18 |
| #define EXCCAUSE_ITLB_SIZE_RESTRICTION 19 |
| #define EXCCAUSE_FETCH_CACHE_ATTRIBUTE 20 |
| #define EXCCAUSE_DTLB_MISS 24 |
| #define EXCCAUSE_DTLB_MULTIHIT 25 |
| #define EXCCAUSE_DTLB_PRIVILEGE 26 |
| #define EXCCAUSE_DTLB_SIZE_RESTRICTION 27 |
| #define EXCCAUSE_LOAD_CACHE_ATTRIBUTE 28 |
| #define EXCCAUSE_STORE_CACHE_ATTRIBUTE 29 |
| #define EXCCAUSE_COPROCESSOR0_DISABLED 32 |
| #define EXCCAUSE_COPROCESSOR1_DISABLED 33 |
| #define EXCCAUSE_COPROCESSOR2_DISABLED 34 |
| #define EXCCAUSE_COPROCESSOR3_DISABLED 35 |
| #define EXCCAUSE_COPROCESSOR4_DISABLED 36 |
| #define EXCCAUSE_COPROCESSOR5_DISABLED 37 |
| #define EXCCAUSE_COPROCESSOR6_DISABLED 38 |
| #define EXCCAUSE_COPROCESSOR7_DISABLED 39 |
| |
| /* PS register fields. */ |
| |
| #define PS_WOE_BIT 18 |
| #define PS_CALLINC_SHIFT 16 |
| #define PS_CALLINC_MASK 0x00030000 |
| #define PS_OWB_SHIFT 8 |
| #define PS_OWB_MASK 0x00000F00 |
| #define PS_RING_SHIFT 6 |
| #define PS_RING_MASK 0x000000C0 |
| #define PS_UM_BIT 5 |
| #define PS_EXCM_BIT 4 |
| #define PS_INTLEVEL_SHIFT 0 |
| #define PS_INTLEVEL_MASK 0x0000000F |
| |
| /* DBREAKCn register fields. */ |
| |
| #define DBREAKC_MASK_BIT 0 |
| #define DBREAKC_MASK_MASK 0x0000003F |
| #define DBREAKC_LOAD_BIT 30 |
| #define DBREAKC_LOAD_MASK 0x40000000 |
| #define DBREAKC_STOR_BIT 31 |
| #define DBREAKC_STOR_MASK 0x80000000 |
| |
| /* DEBUGCAUSE register fields. */ |
| |
| #define DEBUGCAUSE_DEBUGINT_BIT 5 /* External debug interrupt */ |
| #define DEBUGCAUSE_BREAKN_BIT 4 /* BREAK.N instruction */ |
| #define DEBUGCAUSE_BREAK_BIT 3 /* BREAK instruction */ |
| #define DEBUGCAUSE_DBREAK_BIT 2 /* DBREAK match */ |
| #define DEBUGCAUSE_IBREAK_BIT 1 /* IBREAK match */ |
| #define DEBUGCAUSE_ICOUNT_BIT 0 /* ICOUNT would incr. to zero */ |
| |
| #endif /* _XTENSA_SPECREG_H */ |
| |
