[people/ms/u-boot.git] / arch / openrisc / include / asm / spr-defs.h

/*
 * SPR Definitions
 *
 * Copyright (C) 2000 Damjan Lampret
 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
 * Copyright (C) 2008, 2010 Embecosm Limited
 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
 * et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This file is part of OpenRISC 1000 Architectural Simulator.
 */

#ifndef SPR_DEFS__H
#define SPR_DEFS__H

/* Definition of special-purpose registers (SPRs) */

#define MAX_GRPS (32)
#define MAX_SPRS_PER_GRP_BITS (11)
#define MAX_SPRS_PER_GRP (1 << MAX_SPRS_PER_GRP_BITS)
#define MAX_SPRS (0x10000)

/* Base addresses for the groups */
#define SPRGROUP_SYS    (0 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_DMMU   (1 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_IMMU   (2 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_DC     (3 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_IC     (4 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_MAC    (5 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_D      (6 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_PC     (7 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_PM     (8 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_PIC    (9 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_TT     (10 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_FP     (11 << MAX_SPRS_PER_GRP_BITS)

/* System control and status group */
#define SPR_VR          (SPRGROUP_SYS + 0)
#define SPR_UPR         (SPRGROUP_SYS + 1)
#define SPR_CPUCFGR     (SPRGROUP_SYS + 2)
#define SPR_DMMUCFGR    (SPRGROUP_SYS + 3)
#define SPR_IMMUCFGR    (SPRGROUP_SYS + 4)
#define SPR_DCCFGR      (SPRGROUP_SYS + 5)
#define SPR_ICCFGR      (SPRGROUP_SYS + 6)
#define SPR_DCFGR       (SPRGROUP_SYS + 7)
#define SPR_PCCFGR      (SPRGROUP_SYS + 8)
#define SPR_NPC         (SPRGROUP_SYS + 16)
#define SPR_SR          (SPRGROUP_SYS + 17)
#define SPR_PPC         (SPRGROUP_SYS + 18)
#define SPR_FPCSR       (SPRGROUP_SYS + 20)
#define SPR_EPCR_BASE   (SPRGROUP_SYS + 32)
#define SPR_EPCR_LAST   (SPRGROUP_SYS + 47)
#define SPR_EEAR_BASE   (SPRGROUP_SYS + 48)
#define SPR_EEAR_LAST   (SPRGROUP_SYS + 63)
#define SPR_ESR_BASE    (SPRGROUP_SYS + 64)
#define SPR_ESR_LAST    (SPRGROUP_SYS + 79)
#define SPR_GPR_BASE    (SPRGROUP_SYS + 1024)

/* Data MMU group */
#define SPR_DMMUCR      (SPRGROUP_DMMU + 0)
#define SPR_DTLBEIR     (SPRGROUP_DMMU + 2)
#define SPR_DTLBMR_BASE(WAY)    (SPRGROUP_DMMU + 0x200 + (WAY) * 0x100)
#define SPR_DTLBMR_LAST(WAY)    (SPRGROUP_DMMU + 0x27f + (WAY) * 0x100)
#define SPR_DTLBTR_BASE(WAY)    (SPRGROUP_DMMU + 0x280 + (WAY) * 0x100)
#define SPR_DTLBTR_LAST(WAY)    (SPRGROUP_DMMU + 0x2ff + (WAY) * 0x100)

/* Instruction MMU group */
#define SPR_IMMUCR      (SPRGROUP_IMMU + 0)
#define SPR_ITLBEIR     (SPRGROUP_IMMU + 2)
#define SPR_ITLBMR_BASE(WAY)    (SPRGROUP_IMMU + 0x200 + (WAY) * 0x100)
#define SPR_ITLBMR_LAST(WAY)    (SPRGROUP_IMMU + 0x27f + (WAY) * 0x100)
#define SPR_ITLBTR_BASE(WAY)    (SPRGROUP_IMMU + 0x280 + (WAY) * 0x100)
#define SPR_ITLBTR_LAST(WAY)    (SPRGROUP_IMMU + 0x2ff + (WAY) * 0x100)

/* Data cache group */
#define SPR_DCCR        (SPRGROUP_DC + 0)
#define SPR_DCBPR       (SPRGROUP_DC + 1)
#define SPR_DCBFR       (SPRGROUP_DC + 2)
#define SPR_DCBIR       (SPRGROUP_DC + 3)
#define SPR_DCBWR       (SPRGROUP_DC + 4)
#define SPR_DCBLR       (SPRGROUP_DC + 5)
#define SPR_DCR_BASE(WAY)       (SPRGROUP_DC + 0x200 + (WAY) * 0x200)
#define SPR_DCR_LAST(WAY)       (SPRGROUP_DC + 0x3ff + (WAY) * 0x200)

/* Instruction cache group */
#define SPR_ICCR        (SPRGROUP_IC + 0)
#define SPR_ICBPR       (SPRGROUP_IC + 1)
#define SPR_ICBIR       (SPRGROUP_IC + 2)
#define SPR_ICBLR       (SPRGROUP_IC + 3)
#define SPR_ICR_BASE(WAY)       (SPRGROUP_IC + 0x200 + (WAY) * 0x200)
#define SPR_ICR_LAST(WAY)       (SPRGROUP_IC + 0x3ff + (WAY) * 0x200)

/* MAC group */
#define SPR_MACLO       (SPRGROUP_MAC + 1)
#define SPR_MACHI       (SPRGROUP_MAC + 2)

/* Debug group */
#define SPR_DVR(N)      (SPRGROUP_D + (N))
#define SPR_DCR(N)      (SPRGROUP_D + 8 + (N))
#define SPR_DMR1        (SPRGROUP_D + 16)
#define SPR_DMR2        (SPRGROUP_D + 17)
#define SPR_DWCR0       (SPRGROUP_D + 18)
#define SPR_DWCR1       (SPRGROUP_D + 19)
#define SPR_DSR         (SPRGROUP_D + 20)
#define SPR_DRR         (SPRGROUP_D + 21)

/* Performance counters group */
#define SPR_PCCR(N)     (SPRGROUP_PC + (N))
#define SPR_PCMR(N)     (SPRGROUP_PC + 8 + (N))

/* Power management group */
#define SPR_PMR         (SPRGROUP_PM + 0)

/* PIC group */
#define SPR_PICMR       (SPRGROUP_PIC + 0)
#define SPR_PICPR       (SPRGROUP_PIC + 1)
#define SPR_PICSR       (SPRGROUP_PIC + 2)

/* Tick Timer group */
#define SPR_TTMR        (SPRGROUP_TT + 0)
#define SPR_TTCR        (SPRGROUP_TT + 1)

/*
 * Bit definitions for the Version Register
 */
#define SPR_VR_VER      0xff000000 /* Processor version */
#define SPR_VR_CFG      0x00ff0000 /* Processor configuration */
#define SPR_VR_RES      0x0000ffc0 /* Reserved */
#define SPR_VR_REV      0x0000003f /* Processor revision */

#define SPR_VR_VER_OFF  24
#define SPR_VR_CFG_OFF  16
#define SPR_VR_REV_OFF  0

/*
 * Bit definitions for the Unit Present Register
 */
#define SPR_UPR_UP      0x00000001 /* UPR present */
#define SPR_UPR_DCP     0x00000002 /* Data cache present */
#define SPR_UPR_ICP     0x00000004 /* Instruction cache present */
#define SPR_UPR_DMP     0x00000008 /* Data MMU present */
#define SPR_UPR_IMP     0x00000010 /* Instruction MMU present */
#define SPR_UPR_MP      0x00000020 /* MAC present */
#define SPR_UPR_DUP     0x00000040 /* Debug unit present */
#define SPR_UPR_PCUP    0x00000080 /* Performance counters unit present */
#define SPR_UPR_PMP     0x00000100 /* Power management present */
#define SPR_UPR_PICP    0x00000200 /* PIC present */
#define SPR_UPR_TTP     0x00000400 /* Tick timer present */
#define SPR_UPR_RES     0x00fe0000 /* Reserved */
#define SPR_UPR_CUP     0xff000000 /* Context units present */

/*
 * Bit definitions for the CPU configuration register
 */
#define SPR_CPUCFGR_NSGF        0x0000000f /* Number of shadow GPR files */
#define SPR_CPUCFGR_CGF         0x00000010 /* Custom GPR file */
#define SPR_CPUCFGR_OB32S       0x00000020 /* ORBIS32 supported */
#define SPR_CPUCFGR_OB64S       0x00000040 /* ORBIS64 supported */
#define SPR_CPUCFGR_OF32S       0x00000080 /* ORFPX32 supported */
#define SPR_CPUCFGR_OF64S       0x00000100 /* ORFPX64 supported */
#define SPR_CPUCFGR_OV64S       0x00000200 /* ORVDX64 supported */
#define SPR_CPUCFGR_RES         0xfffffc00 /* Reserved */

/*
 * Bit definitions for the Debug configuration register and other
 * constants.
 */

#define SPR_DCFGR_NDP   0x00000007  /* Number of matchpoints mask */
#define SPR_DCFGR_NDP1  0x00000000  /* One matchpoint supported */
#define SPR_DCFGR_NDP2  0x00000001  /* Two matchpoints supported */
#define SPR_DCFGR_NDP3  0x00000002  /* Three matchpoints supported */
#define SPR_DCFGR_NDP4  0x00000003  /* Four matchpoints supported */
#define SPR_DCFGR_NDP5  0x00000004  /* Five matchpoints supported */
#define SPR_DCFGR_NDP6  0x00000005  /* Six matchpoints supported */
#define SPR_DCFGR_NDP7  0x00000006  /* Seven matchpoints supported */
#define SPR_DCFGR_NDP8  0x00000007  /* Eight matchpoints supported */
#define SPR_DCFGR_WPCI  0x00000008  /* Watchpoint counters implemented */

#define MATCHPOINTS_TO_NDP(n)   (1 == n ? SPR_DCFGR_NDP1 : \
                                2 == n ? SPR_DCFGR_NDP2 : \
                                3 == n ? SPR_DCFGR_NDP3 : \
                                4 == n ? SPR_DCFGR_NDP4 : \
                                5 == n ? SPR_DCFGR_NDP5 : \
                                6 == n ? SPR_DCFGR_NDP6 : \
                                7 == n ? SPR_DCFGR_NDP7 : SPR_DCFGR_NDP8)
#define MAX_MATCHPOINTS 8
#define MAX_WATCHPOINTS (MAX_MATCHPOINTS + 2)

/*
 * Bit definitions for the Supervision Register
 */
#define SPR_SR_SM       0x00000001 /* Supervisor Mode */
#define SPR_SR_TEE      0x00000002 /* Tick timer Exception Enable */
#define SPR_SR_IEE      0x00000004 /* Interrupt Exception Enable */
#define SPR_SR_DCE      0x00000008 /* Data Cache Enable */
#define SPR_SR_ICE      0x00000010 /* Instruction Cache Enable */
#define SPR_SR_DME      0x00000020 /* Data MMU Enable */
#define SPR_SR_IME      0x00000040 /* Instruction MMU Enable */
#define SPR_SR_LEE      0x00000080 /* Little Endian Enable */
#define SPR_SR_CE       0x00000100 /* CID Enable */
#define SPR_SR_F        0x00000200 /* Condition Flag */
#define SPR_SR_CY       0x00000400 /* Carry flag */
#define SPR_SR_OV       0x00000800 /* Overflow flag */
#define SPR_SR_OVE      0x00001000 /* Overflow flag Exception */
#define SPR_SR_DSX      0x00002000 /* Delay Slot Exception */
#define SPR_SR_EPH      0x00004000 /* Exception Prefix High */
#define SPR_SR_FO       0x00008000 /* Fixed one */
#define SPR_SR_SUMRA    0x00010000 /* Supervisor SPR read access */
#define SPR_SR_RES      0x0ffe0000 /* Reserved */
#define SPR_SR_CID      0xf0000000 /* Context ID */

/*
 * Bit definitions for the Data MMU Control Register
 */
#define SPR_DMMUCR_P2S          0x0000003e /* Level 2 Page Size */
#define SPR_DMMUCR_P1S          0x000007c0 /* Level 1 Page Size */
#define SPR_DMMUCR_VADDR_WIDTH  0x0000f800 /* Virtual ADDR Width */
#define SPR_DMMUCR_PADDR_WIDTH  0x000f0000 /* Physical ADDR Width */

/*
 * Bit definitions for the Instruction MMU Control Register
 */
#define SPR_IMMUCR_P2S          0x0000003e /* Level 2 Page Size */
#define SPR_IMMUCR_P1S          0x000007c0 /* Level 1 Page Size */
#define SPR_IMMUCR_VADDR_WIDTH  0x0000f800 /* Virtual ADDR Width */
#define SPR_IMMUCR_PADDR_WIDTH  0x000f0000 /* Physical ADDR Width */

/*
 * Bit definitions for the Data TLB Match Register
 */
#define SPR_DTLBMR_V    0x00000001 /* Valid */
#define SPR_DTLBMR_PL1  0x00000002 /* Page Level 1 (if 0 then PL2) */
#define SPR_DTLBMR_CID  0x0000003c /* Context ID */
#define SPR_DTLBMR_LRU  0x000000c0 /* Least Recently Used */
#define SPR_DTLBMR_VPN  0xfffff000 /* Virtual Page Number */

/*
 * Bit definitions for the Data TLB Translate Register
 */
#define SPR_DTLBTR_CC   0x00000001 /* Cache Coherency */
#define SPR_DTLBTR_CI   0x00000002 /* Cache Inhibit */
#define SPR_DTLBTR_WBC  0x00000004 /* Write-Back Cache */
#define SPR_DTLBTR_WOM  0x00000008 /* Weakly-Ordered Memory */
#define SPR_DTLBTR_A    0x00000010 /* Accessed */
#define SPR_DTLBTR_D    0x00000020 /* Dirty */
#define SPR_DTLBTR_URE  0x00000040 /* User Read Enable */
#define SPR_DTLBTR_UWE  0x00000080 /* User Write Enable */
#define SPR_DTLBTR_SRE  0x00000100 /* Supervisor Read Enable */
#define SPR_DTLBTR_SWE  0x00000200 /* Supervisor Write Enable */
#define SPR_DTLBTR_PPN  0xfffff000 /* Physical Page Number */

/*
 * Bit definitions for the Instruction TLB Match Register
 */
#define SPR_ITLBMR_V    0x00000001 /* Valid */
#define SPR_ITLBMR_PL1  0x00000002 /* Page Level 1 (if 0 then PL2) */
#define SPR_ITLBMR_CID  0x0000003c /* Context ID */
#define SPR_ITLBMR_LRU  0x000000c0 /* Least Recently Used */
#define SPR_ITLBMR_VPN  0xfffff000 /* Virtual Page Number */

/*
 * Bit definitions for the Instruction TLB Translate Register
 */
#define SPR_ITLBTR_CC   0x00000001 /* Cache Coherency */
#define SPR_ITLBTR_CI   0x00000002 /* Cache Inhibit */
#define SPR_ITLBTR_WBC  0x00000004 /* Write-Back Cache */
#define SPR_ITLBTR_WOM  0x00000008 /* Weakly-Ordered Memory */
#define SPR_ITLBTR_A    0x00000010 /* Accessed */
#define SPR_ITLBTR_D    0x00000020 /* Dirty */
#define SPR_ITLBTR_SXE  0x00000040 /* User Read Enable */
#define SPR_ITLBTR_UXE  0x00000080 /* User Write Enable */
#define SPR_ITLBTR_PPN  0xfffff000 /* Physical Page Number */

/*
 * Bit definitions for Data Cache Control register
 */
#define SPR_DCCR_EW     0x000000ff /* Enable ways */

/*
 * Bit definitions for Insn Cache Control register
 */
#define SPR_ICCR_EW     0x000000ff /* Enable ways */

/*
 * Bit definitions for Data Cache Configuration Register
 */

#define SPR_DCCFGR_NCW          0x00000007
#define SPR_DCCFGR_NCS          0x00000078
#define SPR_DCCFGR_CBS          0x00000080
#define SPR_DCCFGR_CWS          0x00000100
#define SPR_DCCFGR_CCRI         0x00000200
#define SPR_DCCFGR_CBIRI        0x00000400
#define SPR_DCCFGR_CBPRI        0x00000800
#define SPR_DCCFGR_CBLRI        0x00001000
#define SPR_DCCFGR_CBFRI        0x00002000
#define SPR_DCCFGR_CBWBRI       0x00004000

#define SPR_DCCFGR_NCW_OFF      0
#define SPR_DCCFGR_NCS_OFF      3
#define SPR_DCCFGR_CBS_OFF      7

/*
 * Bit definitions for Instruction Cache Configuration Register
 */
#define SPR_ICCFGR_NCW          0x00000007
#define SPR_ICCFGR_NCS          0x00000078
#define SPR_ICCFGR_CBS          0x00000080
#define SPR_ICCFGR_CCRI         0x00000200
#define SPR_ICCFGR_CBIRI        0x00000400
#define SPR_ICCFGR_CBPRI        0x00000800
#define SPR_ICCFGR_CBLRI        0x00001000

#define SPR_ICCFGR_NCW_OFF      0
#define SPR_ICCFGR_NCS_OFF      3
#define SPR_ICCFGR_CBS_OFF      7

/*
 * Bit definitions for Data MMU Configuration Register
 */
#define SPR_DMMUCFGR_NTW        0x00000003
#define SPR_DMMUCFGR_NTS        0x0000001C
#define SPR_DMMUCFGR_NAE        0x000000E0
#define SPR_DMMUCFGR_CRI        0x00000100
#define SPR_DMMUCFGR_PRI        0x00000200
#define SPR_DMMUCFGR_TEIRI      0x00000400
#define SPR_DMMUCFGR_HTR        0x00000800

#define SPR_DMMUCFGR_NTW_OFF    0
#define SPR_DMMUCFGR_NTS_OFF    2

/*
 * Bit definitions for Instruction MMU Configuration Register
 */
#define SPR_IMMUCFGR_NTW        0x00000003
#define SPR_IMMUCFGR_NTS        0x0000001C
#define SPR_IMMUCFGR_NAE        0x000000E0
#define SPR_IMMUCFGR_CRI        0x00000100
#define SPR_IMMUCFGR_PRI        0x00000200
#define SPR_IMMUCFGR_TEIRI      0x00000400
#define SPR_IMMUCFGR_HTR        0x00000800

#define SPR_IMMUCFGR_NTW_OFF    0
#define SPR_IMMUCFGR_NTS_OFF    2

/*
 * Bit definitions for Debug Control registers
 */
#define SPR_DCR_DP      0x00000001 /* DVR/DCR present */
#define SPR_DCR_CC      0x0000000e /* Compare condition */
#define SPR_DCR_SC      0x00000010 /* Signed compare */
#define SPR_DCR_CT      0x000000e0 /* Compare to */

/* Bit results with SPR_DCR_CC mask */
#define SPR_DCR_CC_MASKED       0x00000000
#define SPR_DCR_CC_EQUAL        0x00000002
#define SPR_DCR_CC_LESS         0x00000004
#define SPR_DCR_CC_LESSE        0x00000006
#define SPR_DCR_CC_GREAT        0x00000008
#define SPR_DCR_CC_GREATE       0x0000000a
#define SPR_DCR_CC_NEQUAL       0x0000000c

/* Bit results with SPR_DCR_CT mask */
#define SPR_DCR_CT_DISABLED     0x00000000
#define SPR_DCR_CT_IFEA         0x00000020
#define SPR_DCR_CT_LEA          0x00000040
#define SPR_DCR_CT_SEA          0x00000060
#define SPR_DCR_CT_LD           0x00000080
#define SPR_DCR_CT_SD           0x000000a0
#define SPR_DCR_CT_LSEA         0x000000c0
#define SPR_DCR_CT_LSD          0x000000e0

/*
 * Bit definitions for Debug Mode 1 register
 */
#define SPR_DMR1_CW             0x000fffff /* Chain register pair data */
#define SPR_DMR1_CW0_AND        0x00000001
#define SPR_DMR1_CW0_OR         0x00000002
#define SPR_DMR1_CW0            (SPR_DMR1_CW0_AND | SPR_DMR1_CW0_OR)
#define SPR_DMR1_CW1_AND        0x00000004
#define SPR_DMR1_CW1_OR         0x00000008
#define SPR_DMR1_CW1            (SPR_DMR1_CW1_AND | SPR_DMR1_CW1_OR)
#define SPR_DMR1_CW2_AND        0x00000010
#define SPR_DMR1_CW2_OR         0x00000020
#define SPR_DMR1_CW2            (SPR_DMR1_CW2_AND | SPR_DMR1_CW2_OR)
#define SPR_DMR1_CW3_AND        0x00000040
#define SPR_DMR1_CW3_OR         0x00000080
#define SPR_DMR1_CW3            (SPR_DMR1_CW3_AND | SPR_DMR1_CW3_OR)
#define SPR_DMR1_CW4_AND        0x00000100
#define SPR_DMR1_CW4_OR         0x00000200
#define SPR_DMR1_CW4            (SPR_DMR1_CW4_AND | SPR_DMR1_CW4_OR)
#define SPR_DMR1_CW5_AND        0x00000400
#define SPR_DMR1_CW5_OR         0x00000800
#define SPR_DMR1_CW5            (SPR_DMR1_CW5_AND | SPR_DMR1_CW5_OR)
#define SPR_DMR1_CW6_AND        0x00001000
#define SPR_DMR1_CW6_OR         0x00002000
#define SPR_DMR1_CW6            (SPR_DMR1_CW6_AND | SPR_DMR1_CW6_OR)
#define SPR_DMR1_CW7_AND        0x00004000
#define SPR_DMR1_CW7_OR         0x00008000
#define SPR_DMR1_CW7            (SPR_DMR1_CW7_AND | SPR_DMR1_CW7_OR)
#define SPR_DMR1_CW8_AND        0x00010000
#define SPR_DMR1_CW8_OR         0x00020000
#define SPR_DMR1_CW8            (SPR_DMR1_CW8_AND | SPR_DMR1_CW8_OR)
#define SPR_DMR1_CW9_AND        0x00040000
#define SPR_DMR1_CW9_OR         0x00080000
#define SPR_DMR1_CW9            (SPR_DMR1_CW9_AND | SPR_DMR1_CW9_OR)
#define SPR_DMR1_RES1           0x00300000 /* Reserved */
#define SPR_DMR1_ST             0x00400000 /* Single-step trace*/
#define SPR_DMR1_BT             0x00800000 /* Branch trace */
#define SPR_DMR1_RES2           0xff000000 /* Reserved */

/*
 * Bit definitions for Debug Mode 2 register. AWTC and WGB corrected by JPB
 */
#define SPR_DMR2_WCE0           0x00000001 /* Watchpoint counter 0 enable */
#define SPR_DMR2_WCE1           0x00000002 /* Watchpoint counter 0 enable */
#define SPR_DMR2_AWTC           0x00000ffc /* Assign watchpoints to counters */
#define SPR_DMR2_AWTC_OFF       2 /* Bit offset to AWTC field */
#define SPR_DMR2_WGB            0x003ff000 /* Watch generating breakpoint */
#define SPR_DMR2_WGB_OFF        12 /* Bit offset to WGB field */
#define SPR_DMR2_WBS            0xffc00000 /* Watchpoint status */
#define SPR_DMR2_WBS_OFF        22 /* Bit offset to WBS field */

/*
 * Bit definitions for Debug watchpoint counter registers
 */
#define SPR_DWCR_COUNT          0x0000ffff /* Count */
#define SPR_DWCR_MATCH          0xffff0000 /* Match */
#define SPR_DWCR_MATCH_OFF      16 /* Match bit offset */

/*
 * Bit definitions for Debug stop register
 *
 */
#define SPR_DSR_RSTE    0x00000001 /* Reset exception */
#define SPR_DSR_BUSEE   0x00000002 /* Bus error exception */
#define SPR_DSR_DPFE    0x00000004 /* Data Page Fault exception */
#define SPR_DSR_IPFE    0x00000008 /* Insn Page Fault exception */
#define SPR_DSR_TTE     0x00000010 /* Tick Timer exception */
#define SPR_DSR_AE      0x00000020 /* Alignment exception */
#define SPR_DSR_IIE     0x00000040 /* Illegal Instruction exception */
#define SPR_DSR_IE      0x00000080 /* Interrupt exception */
#define SPR_DSR_DME     0x00000100 /* DTLB miss exception */
#define SPR_DSR_IME     0x00000200 /* ITLB miss exception */
#define SPR_DSR_RE      0x00000400 /* Range exception */
#define SPR_DSR_SCE     0x00000800 /* System call exception */
#define SPR_DSR_FPE     0x00001000 /* Floating Point Exception */
#define SPR_DSR_TE      0x00002000 /* Trap exception */

/*
 * Bit definitions for Debug reason register
 */
#define SPR_DRR_RSTE    0x00000001 /* Reset exception */
#define SPR_DRR_BUSEE   0x00000002 /* Bus error exception */
#define SPR_DRR_DPFE    0x00000004 /* Data Page Fault exception */
#define SPR_DRR_IPFE    0x00000008 /* Insn Page Fault exception */
#define SPR_DRR_TTE     0x00000010 /* Tick Timer exception */
#define SPR_DRR_AE      0x00000020 /* Alignment exception */
#define SPR_DRR_IIE     0x00000040 /* Illegal Instruction exception */
#define SPR_DRR_IE      0x00000080 /* Interrupt exception */
#define SPR_DRR_DME     0x00000100 /* DTLB miss exception */
#define SPR_DRR_IME     0x00000200 /* ITLB miss exception */
#define SPR_DRR_RE      0x00000400 /* Range exception */
#define SPR_DRR_SCE     0x00000800 /* System call exception */
#define SPR_DRR_FPE     0x00001000 /* Floating Point Exception */
#define SPR_DRR_TE      0x00002000 /* Trap exception */

/*
 * Bit definitions for Performance counters mode registers
 */
#define SPR_PCMR_CP     0x00000001 /* Counter present */
#define SPR_PCMR_UMRA   0x00000002 /* User mode read access */
#define SPR_PCMR_CISM   0x00000004 /* Count in supervisor mode */
#define SPR_PCMR_CIUM   0x00000008 /* Count in user mode */
#define SPR_PCMR_LA     0x00000010 /* Load access event */
#define SPR_PCMR_SA     0x00000020 /* Store access event */
#define SPR_PCMR_IF     0x00000040 /* Instruction fetch event*/
#define SPR_PCMR_DCM    0x00000080 /* Data cache miss event */
#define SPR_PCMR_ICM    0x00000100 /* Insn cache miss event */
#define SPR_PCMR_IFS    0x00000200 /* Insn fetch stall event */
#define SPR_PCMR_LSUS   0x00000400 /* LSU stall event */
#define SPR_PCMR_BS     0x00000800 /* Branch stall event */
#define SPR_PCMR_DTLBM  0x00001000 /* DTLB miss event */
#define SPR_PCMR_ITLBM  0x00002000 /* ITLB miss event */
#define SPR_PCMR_DDS    0x00004000 /* Data dependency stall event */
#define SPR_PCMR_WPE    0x03ff8000 /* Watchpoint events */

/*
 * Bit definitions for the Power management register
 */
#define SPR_PMR_SDF     0x0000000f /* Slow down factor */
#define SPR_PMR_DME     0x00000010 /* Doze mode enable */
#define SPR_PMR_SME     0x00000020 /* Sleep mode enable */
#define SPR_PMR_DCGE    0x00000040 /* Dynamic clock gating enable */
#define SPR_PMR_SUME    0x00000080 /* Suspend mode enable */

/*
 * Bit definitions for PICMR
 */
#define SPR_PICMR_IUM   0xfffffffc /* Interrupt unmask */

/*
 * Bit definitions for PICPR
 */
#define SPR_PICPR_IPRIO 0xfffffffc /* Interrupt priority */

/*
 * Bit definitions for PICSR
 */
#define SPR_PICSR_IS    0xffffffff /* Interrupt status */

/*
 * Bit definitions for Tick Timer Control Register
 */
#define SPR_TTCR_CNT    0xffffffff /* Count, time period */
#define SPR_TTMR_TP     0x0fffffff /* Time period */
#define SPR_TTMR_IP     0x10000000 /* Interrupt Pending */
#define SPR_TTMR_IE     0x20000000 /* Interrupt Enable */
#define SPR_TTMR_DI     0x00000000 /* Disabled */
#define SPR_TTMR_RT     0x40000000 /* Restart tick */
#define SPR_TTMR_SR     0x80000000 /* Single run */
#define SPR_TTMR_CR     0xc0000000 /* Continuous run */
#define SPR_TTMR_M      0xc0000000 /* Tick mode */

/*
 * Bit definitions for the FP Control Status Register
 */
#define SPR_FPCSR_FPEE  0x00000001 /* Floating Point Exception Enable */
#define SPR_FPCSR_RM    0x00000006 /* Rounding Mode */
#define SPR_FPCSR_OVF   0x00000008 /* Overflow Flag */
#define SPR_FPCSR_UNF   0x00000010 /* Underflow Flag */
#define SPR_FPCSR_SNF   0x00000020 /* SNAN Flag */
#define SPR_FPCSR_QNF   0x00000040 /* QNAN Flag */
#define SPR_FPCSR_ZF    0x00000080 /* Zero Flag */
#define SPR_FPCSR_IXF   0x00000100 /* Inexact Flag */
#define SPR_FPCSR_IVF   0x00000200 /* Invalid Flag */
#define SPR_FPCSR_INF   0x00000400 /* Infinity Flag */
#define SPR_FPCSR_DZF   0x00000800 /* Divide By Zero Flag */
#define SPR_FPCSR_ALLF  (SPR_FPCSR_OVF | SPR_FPCSR_UNF | SPR_FPCSR_SNF | \
                        SPR_FPCSR_QNF | SPR_FPCSR_ZF | SPR_FPCSR_IXF | \
                        SPR_FPCSR_IVF | SPR_FPCSR_INF | SPR_FPCSR_DZF)

#define FPCSR_RM_RN     (0<<1)
#define FPCSR_RM_RZ     (1<<1)
#define FPCSR_RM_RIP    (2<<1)
#define FPCSR_RM_RIN    (3<<1)

/*
 * l.nop constants
 */
#define NOP_NOP                 0x0000 /* Normal nop instruction */
#define NOP_EXIT                0x0001 /* End of simulation */
#define NOP_REPORT              0x0002 /* Simple report */
#define NOP_PUTC                0x0004 /* Simputc instruction */
#define NOP_CNT_RESET           0x0005 /* Reset statistics counters */
#define NOP_GET_TICKS           0x0006 /* Get # ticks running */
#define NOP_GET_PS              0x0007 /* Get picosecs/cycle */
#define NOP_REPORT_FIRST        0x0400 /* Report with number */
#define NOP_REPORT_LAST         0x03ff /* Report with number */

#endif /* SPR_DEFS__H */