1 files changed, 145 insertions, 0 deletions

diff --git a/arch/xtensa/include/asm/regs.h b/arch/xtensa/include/asm/regs.h
new file mode 100644
index 00000000000..d4baed24692
--- /dev/null
+++ b/arch/xtensa/include/asm/regs.h
@@ -0,0 +1,145 @@
+/*
+ * 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 LBEG            0
+#define LEND            1
+#define LCOUNT          2
+#define SAR             3
+#define BR              4
+#define SCOMPARE1       12
+#define ACCHI           16
+#define ACCLO           17
+#define MR              32
+#define WINDOWBASE      72
+#define WINDOWSTART     73
+#define PTEVADDR        83
+#define RASID           90
+#define ITLBCFG         91
+#define DTLBCFG         92
+#define IBREAKENABLE    96
+#define DDR             104
+#define IBREAKA         128
+#define DBREAKA         144
+#define DBREAKC         160
+#define EPC             176
+#define EPC_1           177
+#define DEPC            192
+#define EPS             192
+#define EPS_1           193
+#define EXCSAVE         208
+#define EXCSAVE_1       209
+#define INTERRUPT       226
+#define INTENABLE       228
+#define PS              230
+#define THREADPTR       231
+#define EXCCAUSE        232
+#define DEBUGCAUSE      233
+#define CCOUNT          234
+#define PRID            235
+#define ICOUNT          236
+#define ICOUNTLEVEL     237
+#define EXCVADDR        238
+#define CCOMPARE        240
+#define MISC            244
+
+/*  Special names for read-only and write-only interrupt registers.  */
+
+#define INTREAD         226
+#define INTSET          226
+#define INTCLEAR        227
+
+/*  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 */
+