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 */