| Chris Zankel | 1387dab | 2016-08-10 18:36:44 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2006 Tensilica, Inc. All Rights Reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0+ |
| 5 | */ |
| 6 | |
| 7 | #ifndef _XTENSA_REGS_H |
| 8 | #define _XTENSA_REGS_H |
| 9 | |
| 10 | /* Special registers */ |
| 11 | |
| 12 | #define IBREAKA 128 |
| 13 | #define DBREAKA 144 |
| 14 | #define DBREAKC 160 |
| 15 | |
| 16 | /* Special names for read-only and write-only interrupt registers */ |
| 17 | |
| 18 | #define INTREAD 226 |
| 19 | #define INTSET 226 |
| 20 | #define INTCLEAR 227 |
| 21 | |
| 22 | /* EXCCAUSE register fields */ |
| 23 | |
| 24 | #define EXCCAUSE_EXCCAUSE_SHIFT 0 |
| 25 | #define EXCCAUSE_EXCCAUSE_MASK 0x3F |
| 26 | |
| 27 | #define EXCCAUSE_ILLEGAL_INSTRUCTION 0 |
| 28 | #define EXCCAUSE_SYSTEM_CALL 1 |
| 29 | #define EXCCAUSE_INSTRUCTION_FETCH_ERROR 2 |
| 30 | #define EXCCAUSE_LOAD_STORE_ERROR 3 |
| 31 | #define EXCCAUSE_LEVEL1_INTERRUPT 4 |
| 32 | #define EXCCAUSE_ALLOCA 5 |
| 33 | #define EXCCAUSE_INTEGER_DIVIDE_BY_ZERO 6 |
| 34 | #define EXCCAUSE_SPECULATION 7 |
| 35 | #define EXCCAUSE_PRIVILEGED 8 |
| 36 | #define EXCCAUSE_UNALIGNED 9 |
| 37 | #define EXCCAUSE_INSTR_DATA_ERROR 12 |
| 38 | #define EXCCAUSE_LOAD_STORE_DATA_ERROR 13 |
| 39 | #define EXCCAUSE_INSTR_ADDR_ERROR 14 |
| 40 | #define EXCCAUSE_LOAD_STORE_ADDR_ERROR 15 |
| 41 | #define EXCCAUSE_ITLB_MISS 16 |
| 42 | #define EXCCAUSE_ITLB_MULTIHIT 17 |
| 43 | #define EXCCAUSE_ITLB_PRIVILEGE 18 |
| 44 | #define EXCCAUSE_ITLB_SIZE_RESTRICTION 19 |
| 45 | #define EXCCAUSE_FETCH_CACHE_ATTRIBUTE 20 |
| 46 | #define EXCCAUSE_DTLB_MISS 24 |
| 47 | #define EXCCAUSE_DTLB_MULTIHIT 25 |
| 48 | #define EXCCAUSE_DTLB_PRIVILEGE 26 |
| 49 | #define EXCCAUSE_DTLB_SIZE_RESTRICTION 27 |
| 50 | #define EXCCAUSE_LOAD_CACHE_ATTRIBUTE 28 |
| 51 | #define EXCCAUSE_STORE_CACHE_ATTRIBUTE 29 |
| 52 | #define EXCCAUSE_COPROCESSOR0_DISABLED 32 |
| 53 | #define EXCCAUSE_COPROCESSOR1_DISABLED 33 |
| 54 | #define EXCCAUSE_COPROCESSOR2_DISABLED 34 |
| 55 | #define EXCCAUSE_COPROCESSOR3_DISABLED 35 |
| 56 | #define EXCCAUSE_COPROCESSOR4_DISABLED 36 |
| 57 | #define EXCCAUSE_COPROCESSOR5_DISABLED 37 |
| 58 | #define EXCCAUSE_COPROCESSOR6_DISABLED 38 |
| 59 | #define EXCCAUSE_COPROCESSOR7_DISABLED 39 |
| 60 | #define EXCCAUSE_LAST 63 |
| 61 | |
| 62 | /* PS register fields */ |
| 63 | |
| 64 | #define PS_WOE_BIT 18 |
| 65 | #define PS_CALLINC_SHIFT 16 |
| 66 | #define PS_CALLINC_MASK 0x00030000 |
| 67 | #define PS_OWB_SHIFT 8 |
| 68 | #define PS_OWB_MASK 0x00000F00 |
| 69 | #define PS_RING_SHIFT 6 |
| 70 | #define PS_RING_MASK 0x000000C0 |
| 71 | #define PS_UM_BIT 5 |
| 72 | #define PS_EXCM_BIT 4 |
| 73 | #define PS_INTLEVEL_SHIFT 0 |
| 74 | #define PS_INTLEVEL_MASK 0x0000000F |
| 75 | |
| 76 | /* DBREAKCn register fields */ |
| 77 | |
| 78 | #define DBREAKC_MASK_BIT 0 |
| 79 | #define DBREAKC_MASK_MASK 0x0000003F |
| 80 | #define DBREAKC_LOAD_BIT 30 |
| 81 | #define DBREAKC_LOAD_MASK 0x40000000 |
| 82 | #define DBREAKC_STOR_BIT 31 |
| 83 | #define DBREAKC_STOR_MASK 0x80000000 |
| 84 | |
| 85 | /* DEBUGCAUSE register fields */ |
| 86 | |
| 87 | #define DEBUGCAUSE_DEBUGINT_BIT 5 /* External debug interrupt */ |
| 88 | #define DEBUGCAUSE_BREAKN_BIT 4 /* BREAK.N instruction */ |
| 89 | #define DEBUGCAUSE_BREAK_BIT 3 /* BREAK instruction */ |
| 90 | #define DEBUGCAUSE_DBREAK_BIT 2 /* DBREAK match */ |
| 91 | #define DEBUGCAUSE_IBREAK_BIT 1 /* IBREAK match */ |
| 92 | #define DEBUGCAUSE_ICOUNT_BIT 0 /* ICOUNT would incr. to zero */ |
| 93 | |
| 94 | #endif /* _XTENSA_SPECREG_H */ |
| 95 | |