/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Contains the definition of registers common to all PowerPC variants.
 * If a register definition has been changed in a different PowerPC
 * variant, we will case it in #ifndef XXX ... #endif, and have the
 * number used in the Programming Environments Manual For 32-Bit
 * Implementations of the PowerPC Architecture (a.k.a. Green Book) here.
 */

#ifndef _ASM_POWERPC_REG_H
#define _ASM_POWERPC_REG_H
#ifdef __KERNEL__

#include <linux/stringify.h>
#include <linux/const.h>
#include <asm/cputable.h>
#include <asm/asm-const.h>
#include <asm/feature-fixups.h>

/* Pickup Book E specific registers. */
#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
#include <asm/reg_booke.h>
#endif /* CONFIG_BOOKE || CONFIG_40x */

#ifdef CONFIG_FSL_EMB_PERFMON
#include <asm/reg_fsl_emb.h>
#endif

#include <asm/reg_8xx.h>

#define MSR_SF_LG       63              /* Enable 64 bit mode */
#define MSR_HV_LG       60              /* Hypervisor state */
#define MSR_TS_T_LG     34              /* Trans Mem state: Transactional */
#define MSR_TS_S_LG     33              /* Trans Mem state: Suspended */
#define MSR_TS_LG       33              /* Trans Mem state (2 bits) */
#define MSR_TM_LG       32              /* Trans Mem Available */
#define MSR_VEC_LG      25              /* Enable AltiVec */
#define MSR_VSX_LG      23              /* Enable VSX */
#define MSR_S_LG        22              /* Secure state */
#define MSR_POW_LG      18              /* Enable Power Management */
#define MSR_WE_LG       18              /* Wait State Enable */
#define MSR_TGPR_LG     17              /* TLB Update registers in use */
#define MSR_CE_LG       17              /* Critical Interrupt Enable */
#define MSR_ILE_LG      16              /* Interrupt Little Endian */
#define MSR_EE_LG       15              /* External Interrupt Enable */
#define MSR_PR_LG       14              /* Problem State / Privilege Level */
#define MSR_FP_LG       13              /* Floating Point enable */
#define MSR_ME_LG       12              /* Machine Check Enable */
#define MSR_FE0_LG      11              /* Floating Exception mode 0 */
#define MSR_SE_LG       10              /* Single Step */
#define MSR_BE_LG       9               /* Branch Trace */
#define MSR_DE_LG       9               /* Debug Exception Enable */
#define MSR_FE1_LG      8               /* Floating Exception mode 1 */
#define MSR_IP_LG       6               /* Exception prefix 0x000/0xFFF */
#define MSR_IR_LG       5               /* Instruction Relocate */
#define MSR_DR_LG       4               /* Data Relocate */
#define MSR_PE_LG       3               /* Protection Enable */
#define MSR_PX_LG       2               /* Protection Exclusive Mode */
#define MSR_PMM_LG      2               /* Performance monitor */
#define MSR_RI_LG       1               /* Recoverable Exception */
#define MSR_LE_LG       0               /* Little Endian */

#ifdef __ASSEMBLY__
#define __MASK(X)       (1<<(X))
#else
#define __MASK(X)       (1UL<<(X))
#endif

#ifdef CONFIG_PPC64
#define MSR_SF          __MASK(MSR_SF_LG)       /* Enable 64 bit mode */
#define MSR_HV          __MASK(MSR_HV_LG)       /* Hypervisor state */
#define MSR_S           __MASK(MSR_S_LG)        /* Secure state */
#else
/* so tests for these bits fail on 32-bit */
#define MSR_SF          0
#define MSR_HV          0
#define MSR_S           0
#endif

/*
 * To be used in shared book E/book S, this avoids needing to worry about
 * book S/book E in shared code
 */
#ifndef MSR_SPE
#define MSR_SPE         0
#endif

#define MSR_VEC         __MASK(MSR_VEC_LG)      /* Enable AltiVec */
#define MSR_VSX         __MASK(MSR_VSX_LG)      /* Enable VSX */
#define MSR_POW         __MASK(MSR_POW_LG)      /* Enable Power Management */
#define MSR_WE          __MASK(MSR_WE_LG)       /* Wait State Enable */
#define MSR_TGPR        __MASK(MSR_TGPR_LG)     /* TLB Update registers in use */
#define MSR_CE          __MASK(MSR_CE_LG)       /* Critical Interrupt Enable */
#define MSR_ILE         __MASK(MSR_ILE_LG)      /* Interrupt Little Endian */
#define MSR_EE          __MASK(MSR_EE_LG)       /* External Interrupt Enable */
#define MSR_PR          __MASK(MSR_PR_LG)       /* Problem State / Privilege Level */
#define MSR_FP          __MASK(MSR_FP_LG)       /* Floating Point enable */
#define MSR_ME          __MASK(MSR_ME_LG)       /* Machine Check Enable */
#define MSR_FE0         __MASK(MSR_FE0_LG)      /* Floating Exception mode 0 */
#define MSR_SE          __MASK(MSR_SE_LG)       /* Single Step */
#define MSR_BE          __MASK(MSR_BE_LG)       /* Branch Trace */
#define MSR_DE          __MASK(MSR_DE_LG)       /* Debug Exception Enable */
#define MSR_FE1         __MASK(MSR_FE1_LG)      /* Floating Exception mode 1 */
#define MSR_IP          __MASK(MSR_IP_LG)       /* Exception prefix 0x000/0xFFF */
#define MSR_IR          __MASK(MSR_IR_LG)       /* Instruction Relocate */
#define MSR_DR          __MASK(MSR_DR_LG)       /* Data Relocate */
#define MSR_PE          __MASK(MSR_PE_LG)       /* Protection Enable */
#define MSR_PX          __MASK(MSR_PX_LG)       /* Protection Exclusive Mode */
#ifndef MSR_PMM
#define MSR_PMM         __MASK(MSR_PMM_LG)      /* Performance monitor */
#endif
#define MSR_RI          __MASK(MSR_RI_LG)       /* Recoverable Exception */
#define MSR_LE          __MASK(MSR_LE_LG)       /* Little Endian */

#define MSR_TM          __MASK(MSR_TM_LG)       /* Transactional Mem Available */
#define MSR_TS_N        0                       /*  Non-transactional */
#define MSR_TS_S        __MASK(MSR_TS_S_LG)     /*  Transaction Suspended */
#define MSR_TS_T        __MASK(MSR_TS_T_LG)     /*  Transaction Transactional */
#define MSR_TS_MASK     (MSR_TS_T | MSR_TS_S)   /* Transaction State bits */
#define MSR_TM_RESV(x) (((x) & MSR_TS_MASK) == MSR_TS_MASK) /* Reserved */
#define MSR_TM_TRANSACTIONAL(x) (((x) & MSR_TS_MASK) == MSR_TS_T)
#define MSR_TM_SUSPENDED(x)     (((x) & MSR_TS_MASK) == MSR_TS_S)

#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
#define MSR_TM_ACTIVE(x) (((x) & MSR_TS_MASK) != 0) /* Transaction active? */
#else
#define MSR_TM_ACTIVE(x) ((void)(x), 0)
#endif

#if defined(CONFIG_PPC_BOOK3S_64)
#define MSR_64BIT       MSR_SF

/* Server variant */
#define __MSR           (MSR_ME | MSR_RI | MSR_IR | MSR_DR | MSR_HV)
#ifdef __BIG_ENDIAN__
#define MSR_            __MSR
#define MSR_IDLE        (MSR_ME | MSR_SF | MSR_HV)
#else
#define MSR_            (__MSR | MSR_LE)
#define MSR_IDLE        (MSR_ME | MSR_SF | MSR_HV | MSR_LE)
#endif
#define MSR_KERNEL      (MSR_ | MSR_64BIT)
#define MSR_USER32      (MSR_ | MSR_PR | MSR_EE)
#define MSR_USER64      (MSR_USER32 | MSR_64BIT)
#elif defined(CONFIG_PPC_BOOK3S_32) || defined(CONFIG_PPC_8xx)
/* Default MSR for kernel mode. */
#define MSR_KERNEL      (MSR_ME|MSR_RI|MSR_IR|MSR_DR)
#define MSR_USER        (MSR_KERNEL|MSR_PR|MSR_EE)
#endif

#ifndef MSR_64BIT
#define MSR_64BIT       0
#endif

/* Condition Register related */
#define CR0_SHIFT       28
#define CR0_MASK        0xF
#define CR0_TBEGIN_FAILURE      (0x2 << 28) /* 0b0010 */


/* Power Management - Processor Stop Status and Control Register Fields */
#define PSSCR_RL_MASK           0x0000000F /* Requested Level */
#define PSSCR_MTL_MASK          0x000000F0 /* Maximum Transition Level */
#define PSSCR_TR_MASK           0x00000300 /* Transition State */
#define PSSCR_PSLL_MASK         0x000F0000 /* Power-Saving Level Limit */
#define PSSCR_EC                0x00100000 /* Exit Criterion */
#define PSSCR_ESL               0x00200000 /* Enable State Loss */
#define PSSCR_SD                0x00400000 /* Status Disable */
#define PSSCR_PLS       0xf000000000000000 /* Power-saving Level Status */
#define PSSCR_PLS_SHIFT 60
#define PSSCR_GUEST_VIS 0xf0000000000003ffUL /* Guest-visible PSSCR fields */
#define PSSCR_FAKE_SUSPEND      0x00000400 /* Fake-suspend bit (P9 DD2.2) */
#define PSSCR_FAKE_SUSPEND_LG   10         /* Fake-suspend bit position */

/* Floating Point Status and Control Register (FPSCR) Fields */
#define FPSCR_FX        0x80000000      /* FPU exception summary */
#define FPSCR_FEX       0x40000000      /* FPU enabled exception summary */
#define FPSCR_VX        0x20000000      /* Invalid operation summary */
#define FPSCR_OX        0x10000000      /* Overflow exception summary */
#define FPSCR_UX        0x08000000      /* Underflow exception summary */
#define FPSCR_ZX        0x04000000      /* Zero-divide exception summary */
#define FPSCR_XX        0x02000000      /* Inexact exception summary */
#define FPSCR_VXSNAN    0x01000000      /* Invalid op for SNaN */
#define FPSCR_VXISI     0x00800000      /* Invalid op for Inv - Inv */
#define FPSCR_VXIDI     0x00400000      /* Invalid op for Inv / Inv */
#define FPSCR_VXZDZ     0x00200000      /* Invalid op for Zero / Zero */
#define FPSCR_VXIMZ     0x00100000      /* Invalid op for Inv * Zero */
#define FPSCR_VXVC      0x00080000      /* Invalid op for Compare */
#define FPSCR_FR        0x00040000      /* Fraction rounded */
#define FPSCR_FI        0x00020000      /* Fraction inexact */
#define FPSCR_FPRF      0x0001f000      /* FPU Result Flags */
#define FPSCR_FPCC      0x0000f000      /* FPU Condition Codes */
#define FPSCR_VXSOFT    0x00000400      /* Invalid op for software request */
#define FPSCR_VXSQRT    0x00000200      /* Invalid op for square root */
#define FPSCR_VXCVI     0x00000100      /* Invalid op for integer convert */
#define FPSCR_VE        0x00000080      /* Invalid op exception enable */
#define FPSCR_OE        0x00000040      /* IEEE overflow exception enable */
#define FPSCR_UE        0x00000020      /* IEEE underflow exception enable */
#define FPSCR_ZE        0x00000010      /* IEEE zero divide exception enable */
#define FPSCR_XE        0x00000008      /* FP inexact exception enable */
#define FPSCR_NI        0x00000004      /* FPU non IEEE-Mode */
#define FPSCR_RN        0x00000003      /* FPU rounding control */

/* Bit definitions for SPEFSCR. */
#define SPEFSCR_SOVH    0x80000000      /* Summary integer overflow high */
#define SPEFSCR_OVH     0x40000000      /* Integer overflow high */
#define SPEFSCR_FGH     0x20000000      /* Embedded FP guard bit high */
#define SPEFSCR_FXH     0x10000000      /* Embedded FP sticky bit high */
#define SPEFSCR_FINVH   0x08000000      /* Embedded FP invalid operation high */
#define SPEFSCR_FDBZH   0x04000000      /* Embedded FP div by zero high */
#define SPEFSCR_FUNFH   0x02000000      /* Embedded FP underflow high */
#define SPEFSCR_FOVFH   0x01000000      /* Embedded FP overflow high */
#define SPEFSCR_FINXS   0x00200000      /* Embedded FP inexact sticky */
#define SPEFSCR_FINVS   0x00100000      /* Embedded FP invalid op. sticky */
#define SPEFSCR_FDBZS   0x00080000      /* Embedded FP div by zero sticky */
#define SPEFSCR_FUNFS   0x00040000      /* Embedded FP underflow sticky */
#define SPEFSCR_FOVFS   0x00020000      /* Embedded FP overflow sticky */
#define SPEFSCR_MODE    0x00010000      /* Embedded FP mode */
#define SPEFSCR_SOV     0x00008000      /* Integer summary overflow */
#define SPEFSCR_OV      0x00004000      /* Integer overflow */
#define SPEFSCR_FG      0x00002000      /* Embedded FP guard bit */
#define SPEFSCR_FX      0x00001000      /* Embedded FP sticky bit */
#define SPEFSCR_FINV    0x00000800      /* Embedded FP invalid operation */
#define SPEFSCR_FDBZ    0x00000400      /* Embedded FP div by zero */
#define SPEFSCR_FUNF    0x00000200      /* Embedded FP underflow */
#define SPEFSCR_FOVF    0x00000100      /* Embedded FP overflow */
#define SPEFSCR_FINXE   0x00000040      /* Embedded FP inexact enable */
#define SPEFSCR_FINVE   0x00000020      /* Embedded FP invalid op. enable */
#define SPEFSCR_FDBZE   0x00000010      /* Embedded FP div by zero enable */
#define SPEFSCR_FUNFE   0x00000008      /* Embedded FP underflow enable */
#define SPEFSCR_FOVFE   0x00000004      /* Embedded FP overflow enable */
#define SPEFSCR_FRMC    0x00000003      /* Embedded FP rounding mode control */

/* Special Purpose Registers (SPRNs)*/

#ifdef CONFIG_40x
#define SPRN_PID        0x3B1   /* Process ID */
#else
#define SPRN_PID        0x030   /* Process ID */
#ifdef CONFIG_BOOKE
#define SPRN_PID0       SPRN_PID/* Process ID Register 0 */
#endif
#endif

#define SPRN_CTR        0x009   /* Count Register */
#define SPRN_DSCR       0x11
#define SPRN_CFAR       0x1c    /* Come From Address Register */
#define SPRN_AMR        0x1d    /* Authority Mask Register */
#define SPRN_UAMOR      0x9d    /* User Authority Mask Override Register */
#define SPRN_AMOR       0x15d   /* Authority Mask Override Register */
#define SPRN_ACOP       0x1F    /* Available Coprocessor Register */
#define SPRN_TFIAR      0x81    /* Transaction Failure Inst Addr   */
#define SPRN_TEXASR     0x82    /* Transaction EXception & Summary */
#define SPRN_TEXASRU    0x83    /* ''      ''      ''    Upper 32  */

#define TEXASR_FC_LG    (63 - 7)        /* Failure Code */
#define TEXASR_AB_LG    (63 - 31)       /* Abort */
#define TEXASR_SU_LG    (63 - 32)       /* Suspend */
#define TEXASR_HV_LG    (63 - 34)       /* Hypervisor state*/
#define TEXASR_PR_LG    (63 - 35)       /* Privilege level */
#define TEXASR_FS_LG    (63 - 36)       /* failure summary */
#define TEXASR_EX_LG    (63 - 37)       /* TFIAR exact bit */
#define TEXASR_ROT_LG   (63 - 38)       /* ROT bit */

#define   TEXASR_ABORT  __MASK(TEXASR_AB_LG) /* terminated by tabort or treclaim */
#define   TEXASR_SUSP   __MASK(TEXASR_SU_LG) /* tx failed in suspended state */
#define   TEXASR_HV     __MASK(TEXASR_HV_LG) /* MSR[HV] when failure occurred */
#define   TEXASR_PR     __MASK(TEXASR_PR_LG) /* MSR[PR] when failure occurred */
#define   TEXASR_FS     __MASK(TEXASR_FS_LG) /* TEXASR Failure Summary */
#define   TEXASR_EXACT  __MASK(TEXASR_EX_LG) /* TFIAR value is exact */
#define   TEXASR_ROT    __MASK(TEXASR_ROT_LG)
#define   TEXASR_FC     (ASM_CONST(0xFF) << TEXASR_FC_LG)

#define SPRN_TFHAR      0x80    /* Transaction Failure Handler Addr */

#define SPRN_TIDR       144     /* Thread ID register */
#define SPRN_CTRLF      0x088
#define SPRN_CTRLT      0x098
#define   CTRL_CT       0xc0000000      /* current thread */
#define   CTRL_CT0      0x80000000      /* thread 0 */
#define   CTRL_CT1      0x40000000      /* thread 1 */
#define   CTRL_TE       0x00c00000      /* thread enable */
#define   CTRL_RUNLATCH 0x1
#define SPRN_DAWR0      0xB4
#define SPRN_DAWR1      0xB5
#define SPRN_RPR        0xBA    /* Relative Priority Register */
#define SPRN_CIABR      0xBB
#define   CIABR_PRIV            0x3
#define   CIABR_PRIV_USER       1
#define   CIABR_PRIV_SUPER      2
#define   CIABR_PRIV_HYPER      3
#define SPRN_DAWRX0     0xBC
#define SPRN_DAWRX1     0xBD
#define   DAWRX_USER    __MASK(0)
#define   DAWRX_KERNEL  __MASK(1)
#define   DAWRX_HYP     __MASK(2)
#define   DAWRX_WTI     __MASK(3)
#define   DAWRX_WT      __MASK(4)
#define   DAWRX_DR      __MASK(5)
#define   DAWRX_DW      __MASK(6)
#define SPRN_DABR       0x3F5   /* Data Address Breakpoint Register */
#define SPRN_DABR2      0x13D   /* e300 */
#define SPRN_DABRX      0x3F7   /* Data Address Breakpoint Register Extension */
#define   DABRX_USER    __MASK(0)
#define   DABRX_KERNEL  __MASK(1)
#define   DABRX_HYP     __MASK(2)
#define   DABRX_BTI     __MASK(3)
#define   DABRX_ALL     (DABRX_BTI | DABRX_HYP | DABRX_KERNEL | DABRX_USER)
#define SPRN_DAR        0x013   /* Data Address Register */
#define SPRN_DBCR       0x136   /* e300 Data Breakpoint Control Reg */
#define SPRN_DSISR      0x012   /* Data Storage Interrupt Status Register */
#define   DSISR_BAD_DIRECT_ST   0x80000000 /* Obsolete: Direct store error */
#define   DSISR_NOHPTE          0x40000000 /* no translation found */
#define   DSISR_ATTR_CONFLICT   0x20000000 /* P9: Process vs. Partition attr */
#define   DSISR_NOEXEC_OR_G     0x10000000 /* Alias of SRR1 bit, see below */
#define   DSISR_PROTFAULT       0x08000000 /* protection fault */
#define   DSISR_BADACCESS       0x04000000 /* bad access to CI or G */
#define   DSISR_ISSTORE         0x02000000 /* access was a store */
#define   DSISR_DABRMATCH       0x00400000 /* hit data breakpoint */
#define   DSISR_NOSEGMENT       0x00200000 /* STAB miss (unsupported) */
#define   DSISR_KEYFAULT        0x00200000 /* Storage Key fault */
#define   DSISR_BAD_EXT_CTRL    0x00100000 /* Obsolete: External ctrl error */
#define   DSISR_UNSUPP_MMU      0x00080000 /* P9: Unsupported MMU config */
#define   DSISR_SET_RC          0x00040000 /* P9: Failed setting of R/C bits */
#define   DSISR_PRTABLE_FAULT   0x00020000 /* P9: Fault on process table */
#define   DSISR_ICSWX_NO_CT     0x00004000 /* P7: icswx unavailable cp type */
#define   DSISR_BAD_COPYPASTE   0x00000008 /* P9: Copy/Paste on wrong memtype */
#define   DSISR_BAD_AMO         0x00000004 /* P9: Incorrect AMO opcode */
#define   DSISR_BAD_CI_LDST     0x00000002 /* P8: Bad HV CI load/store */

/*
 * DSISR_NOEXEC_OR_G doesn't actually exist. This bit is always
 * 0 on DSIs. However, on ISIs, the corresponding bit in SRR1
 * indicates an attempt at executing from a no-execute PTE
 * or segment or from a guarded page.
 *
 * We add a definition here for completeness as we alias
 * DSISR and SRR1 in do_page_fault.
 */

/*
 * DSISR bits that are treated as a fault. Any bit set
 * here will skip hash_page, and cause do_page_fault to
 * trigger a SIGBUS or SIGSEGV:
 */
#define   DSISR_BAD_FAULT_32S   (DSISR_BAD_DIRECT_ST    | \
                                 DSISR_BADACCESS        | \
                                 DSISR_BAD_EXT_CTRL)
#define   DSISR_BAD_FAULT_64S   (DSISR_BAD_FAULT_32S    | \
                                 DSISR_ATTR_CONFLICT    | \
                                 DSISR_UNSUPP_MMU       | \
                                 DSISR_PRTABLE_FAULT    | \
                                 DSISR_ICSWX_NO_CT      | \
                                 DSISR_BAD_COPYPASTE    | \
                                 DSISR_BAD_AMO          | \
                                 DSISR_BAD_CI_LDST)
/*
 * These bits are equivalent in SRR1 and DSISR for 0x400
 * instruction access interrupts on Book3S
 */
#define   DSISR_SRR1_MATCH_32S  (DSISR_NOHPTE           | \
                                 DSISR_NOEXEC_OR_G      | \
                                 DSISR_PROTFAULT)
#define   DSISR_SRR1_MATCH_64S  (DSISR_SRR1_MATCH_32S   | \
                                 DSISR_KEYFAULT         | \
                                 DSISR_UNSUPP_MMU       | \
                                 DSISR_SET_RC           | \
                                 DSISR_PRTABLE_FAULT)

#define SPRN_TBRL       0x10C   /* Time Base Read Lower Register (user, R/O) */
#define SPRN_TBRU       0x10D   /* Time Base Read Upper Register (user, R/O) */
#define SPRN_CIR        0x11B   /* Chip Information Register (hyper, R/0) */
#define SPRN_TBWL       0x11C   /* Time Base Lower Register (super, R/W) */
#define SPRN_TBWU       0x11D   /* Time Base Upper Register (super, R/W) */
#define SPRN_TBU40      0x11E   /* Timebase upper 40 bits (hyper, R/W) */
#define SPRN_SPURR      0x134   /* Scaled PURR */
#define SPRN_HSPRG0     0x130   /* Hypervisor Scratch 0 */
#define SPRN_HSPRG1     0x131   /* Hypervisor Scratch 1 */
#define SPRN_HDSISR     0x132
#define SPRN_HDAR       0x133
#define SPRN_HDEC       0x136   /* Hypervisor Decrementer */
#define SPRN_HIOR       0x137   /* 970 Hypervisor interrupt offset */
#define SPRN_RMOR       0x138   /* Real mode offset register */
#define SPRN_HRMOR      0x139   /* Real mode offset register */
#define SPRN_HSRR0      0x13A   /* Hypervisor Save/Restore 0 */
#define SPRN_HSRR1      0x13B   /* Hypervisor Save/Restore 1 */
#define SPRN_ASDR       0x330   /* Access segment descriptor register */
#define SPRN_IC         0x350   /* Virtual Instruction Count */
#define SPRN_VTB        0x351   /* Virtual Time Base */
#define SPRN_LDBAR      0x352   /* LD Base Address Register */
#define SPRN_PMICR      0x354   /* Power Management Idle Control Reg */
#define SPRN_PMSR       0x355   /* Power Management Status Reg */
#define SPRN_PMMAR      0x356   /* Power Management Memory Activity Register */
#define SPRN_PSSCR      0x357   /* Processor Stop Status and Control Register (ISA 3.0) */
#define SPRN_PSSCR_PR   0x337   /* PSSCR ISA 3.0, privileged mode access */
#define SPRN_TRIG2      0x372
#define SPRN_PMCR       0x374   /* Power Management Control Register */
#define SPRN_RWMR       0x375   /* Region-Weighting Mode Register */

/* HFSCR and FSCR bit numbers are the same */
#define FSCR_PREFIX_LG  13      /* Enable Prefix Instructions */
#define FSCR_SCV_LG     12      /* Enable System Call Vectored */
#define FSCR_MSGP_LG    10      /* Enable MSGP */
#define FSCR_TAR_LG     8       /* Enable Target Address Register */
#define FSCR_EBB_LG     7       /* Enable Event Based Branching */
#define FSCR_TM_LG      5       /* Enable Transactional Memory */
#define FSCR_BHRB_LG    4       /* Enable Branch History Rolling Buffer*/
#define FSCR_PM_LG      3       /* Enable prob/priv access to PMU SPRs */
#define FSCR_DSCR_LG    2       /* Enable Data Stream Control Register */
#define FSCR_VECVSX_LG  1       /* Enable VMX/VSX  */
#define FSCR_FP_LG      0       /* Enable Floating Point */
#define SPRN_FSCR       0x099   /* Facility Status & Control Register */
#define   FSCR_PREFIX   __MASK(FSCR_PREFIX_LG)
#define   FSCR_SCV      __MASK(FSCR_SCV_LG)
#define   FSCR_TAR      __MASK(FSCR_TAR_LG)
#define   FSCR_EBB      __MASK(FSCR_EBB_LG)
#define   FSCR_DSCR     __MASK(FSCR_DSCR_LG)
#define   FSCR_INTR_CAUSE (ASM_CONST(0xFF) << 56)       /* interrupt cause */
#define SPRN_HFSCR      0xbe    /* HV=1 Facility Status & Control Register */
#define   HFSCR_PREFIX  __MASK(FSCR_PREFIX_LG)
#define   HFSCR_MSGP    __MASK(FSCR_MSGP_LG)
#define   HFSCR_TAR     __MASK(FSCR_TAR_LG)
#define   HFSCR_EBB     __MASK(FSCR_EBB_LG)
#define   HFSCR_TM      __MASK(FSCR_TM_LG)
#define   HFSCR_PM      __MASK(FSCR_PM_LG)
#define   HFSCR_BHRB    __MASK(FSCR_BHRB_LG)
#define   HFSCR_DSCR    __MASK(FSCR_DSCR_LG)
#define   HFSCR_VECVSX  __MASK(FSCR_VECVSX_LG)
#define   HFSCR_FP      __MASK(FSCR_FP_LG)
#define   HFSCR_INTR_CAUSE FSCR_INTR_CAUSE
#define SPRN_TAR        0x32f   /* Target Address Register */
#define SPRN_LPCR       0x13E   /* LPAR Control Register */
#define   LPCR_VPM0             ASM_CONST(0x8000000000000000)
#define   LPCR_VPM1             ASM_CONST(0x4000000000000000)
#define   LPCR_ISL              ASM_CONST(0x2000000000000000)
#define   LPCR_VC_SH            61
#define   LPCR_DPFD_SH          52
#define   LPCR_DPFD             (ASM_CONST(7) << LPCR_DPFD_SH)
#define   LPCR_VRMASD_SH        47
#define   LPCR_VRMASD           (ASM_CONST(0x1f) << LPCR_VRMASD_SH)
#define   LPCR_VRMA_L           ASM_CONST(0x0008000000000000)
#define   LPCR_VRMA_LP0         ASM_CONST(0x0001000000000000)
#define   LPCR_VRMA_LP1         ASM_CONST(0x0000800000000000)
#define   LPCR_RMLS             0x1C000000      /* Implementation dependent RMO limit sel */
#define   LPCR_RMLS_SH          26
#define   LPCR_HAIL             ASM_CONST(0x0000000004000000)   /* HV AIL (ISAv3.1) */
#define   LPCR_ILE              ASM_CONST(0x0000000002000000)   /* !HV irqs set MSR:LE */
#define   LPCR_AIL              ASM_CONST(0x0000000001800000)   /* Alternate interrupt location */
#define   LPCR_AIL_0            ASM_CONST(0x0000000000000000)   /* MMU off exception offset 0x0 */
#define   LPCR_AIL_3            ASM_CONST(0x0000000001800000)   /* MMU on exception offset 0xc00...4xxx */
#define   LPCR_ONL              ASM_CONST(0x0000000000040000)   /* online - PURR/SPURR count */
#define   LPCR_LD               ASM_CONST(0x0000000000020000)   /* large decremeter */
#define   LPCR_PECE             ASM_CONST(0x000000000001f000)   /* powersave exit cause enable */
#define     LPCR_PECEDP ASM_CONST(0x0000000000010000)   /* directed priv dbells cause exit */
#define     LPCR_PECEDH ASM_CONST(0x0000000000008000)   /* directed hyp dbells cause exit */
#define     LPCR_PECE0          ASM_CONST(0x0000000000004000)   /* ext. exceptions can cause exit */
#define     LPCR_PECE1          ASM_CONST(0x0000000000002000)   /* decrementer can cause exit */
#define     LPCR_PECE2          ASM_CONST(0x0000000000001000)   /* machine check etc can cause exit */
#define     LPCR_PECE_HVEE      ASM_CONST(0x0000400000000000)   /* P9 Wakeup on HV interrupts */
#define   LPCR_MER              ASM_CONST(0x0000000000000800)   /* Mediated External Exception */
#define   LPCR_MER_SH           11
#define   LPCR_GTSE             ASM_CONST(0x0000000000000400)   /* Guest Translation Shootdown Enable */
#define   LPCR_TC               ASM_CONST(0x0000000000000200)   /* Translation control */
#define   LPCR_HEIC             ASM_CONST(0x0000000000000010)   /* Hypervisor External Interrupt Control */
#define   LPCR_LPES             0x0000000c
#define   LPCR_LPES0            ASM_CONST(0x0000000000000008)      /* LPAR Env selector 0 */
#define   LPCR_LPES1            ASM_CONST(0x0000000000000004)      /* LPAR Env selector 1 */
#define   LPCR_LPES_SH          2
#define   LPCR_RMI              ASM_CONST(0x0000000000000002)      /* real mode is cache inhibit */
#define   LPCR_HVICE            ASM_CONST(0x0000000000000002)      /* P9: HV interrupt enable */
#define   LPCR_HDICE            ASM_CONST(0x0000000000000001)      /* Hyp Decr enable (HV,PR,EE) */
#define   LPCR_UPRT             ASM_CONST(0x0000000000400000)      /* Use Process Table (ISA 3) */
#define   LPCR_HR               ASM_CONST(0x0000000000100000)
#ifndef SPRN_LPID
#define SPRN_LPID       0x13F   /* Logical Partition Identifier */
#endif
#define   LPID_RSVD_POWER7      0x3ff   /* Reserved LPID for partn switching */
#define   LPID_RSVD             0xfff   /* Reserved LPID for partn switching */
#define SPRN_HMER       0x150   /* Hypervisor maintenance exception reg */
#define   HMER_DEBUG_TRIG       (1ul << (63 - 17)) /* Debug trigger */
#define SPRN_HMEER      0x151   /* Hyp maintenance exception enable reg */
#define SPRN_PCR        0x152   /* Processor compatibility register */
#define   PCR_VEC_DIS   (__MASK(63-0))  /* Vec. disable (bit NA since POWER8) */
#define   PCR_VSX_DIS   (__MASK(63-1))  /* VSX disable (bit NA since POWER8) */
#define   PCR_TM_DIS    (__MASK(63-2))  /* Trans. memory disable (POWER8) */
#define   PCR_MMA_DIS   (__MASK(63-3)) /* Matrix-Multiply Accelerator */
#define   PCR_HIGH_BITS (PCR_MMA_DIS | PCR_VEC_DIS | PCR_VSX_DIS | PCR_TM_DIS)
/*
 * These bits are used in the function kvmppc_set_arch_compat() to specify and
 * determine both the compatibility level which we want to emulate and the
 * compatibility level which the host is capable of emulating.
 */
#define   PCR_ARCH_300  0x10            /* Architecture 3.00 */
#define   PCR_ARCH_207  0x8             /* Architecture 2.07 */
#define   PCR_ARCH_206  0x4             /* Architecture 2.06 */
#define   PCR_ARCH_205  0x2             /* Architecture 2.05 */
#define   PCR_LOW_BITS  (PCR_ARCH_207 | PCR_ARCH_206 | PCR_ARCH_205 | PCR_ARCH_300)
#define   PCR_MASK      ~(PCR_HIGH_BITS | PCR_LOW_BITS) /* PCR Reserved Bits */
#define SPRN_HEIR       0x153   /* Hypervisor Emulated Instruction Register */
#define SPRN_TLBINDEXR  0x154   /* P7 TLB control register */
#define SPRN_TLBVPNR    0x155   /* P7 TLB control register */
#define SPRN_TLBRPNR    0x156   /* P7 TLB control register */
#define SPRN_TLBLPIDR   0x157   /* P7 TLB control register */
#define SPRN_DBAT0L     0x219   /* Data BAT 0 Lower Register */
#define SPRN_DBAT0U     0x218   /* Data BAT 0 Upper Register */
#define SPRN_DBAT1L     0x21B   /* Data BAT 1 Lower Register */
#define SPRN_DBAT1U     0x21A   /* Data BAT 1 Upper Register */
#define SPRN_DBAT2L     0x21D   /* Data BAT 2 Lower Register */
#define SPRN_DBAT2U     0x21C   /* Data BAT 2 Upper Register */
#define SPRN_DBAT3L     0x21F   /* Data BAT 3 Lower Register */
#define SPRN_DBAT3U     0x21E   /* Data BAT 3 Upper Register */
#define SPRN_DBAT4L     0x239   /* Data BAT 4 Lower Register */
#define SPRN_DBAT4U     0x238   /* Data BAT 4 Upper Register */
#define SPRN_DBAT5L     0x23B   /* Data BAT 5 Lower Register */
#define SPRN_DBAT5U     0x23A   /* Data BAT 5 Upper Register */
#define SPRN_DBAT6L     0x23D   /* Data BAT 6 Lower Register */
#define SPRN_DBAT6U     0x23C   /* Data BAT 6 Upper Register */
#define SPRN_DBAT7L     0x23F   /* Data BAT 7 Lower Register */
#define SPRN_DBAT7U     0x23E   /* Data BAT 7 Upper Register */
#define SPRN_PPR        0x380   /* SMT Thread status Register */
#define SPRN_TSCR       0x399   /* Thread Switch Control Register */

#define SPRN_DEC        0x016           /* Decrement Register */
#define SPRN_PIT        0x3DB           /* Programmable Interval Timer (40x/BOOKE) */

#define SPRN_DER        0x095           /* Debug Enable Register */
#define DER_RSTE        0x40000000      /* Reset Interrupt */
#define DER_CHSTPE      0x20000000      /* Check Stop */
#define DER_MCIE        0x10000000      /* Machine Check Interrupt */
#define DER_EXTIE       0x02000000      /* External Interrupt */
#define DER_ALIE        0x01000000      /* Alignment Interrupt */
#define DER_PRIE        0x00800000      /* Program Interrupt */
#define DER_FPUVIE      0x00400000      /* FP Unavailable Interrupt */
#define DER_DECIE       0x00200000      /* Decrementer Interrupt */
#define DER_SYSIE       0x00040000      /* System Call Interrupt */
#define DER_TRE         0x00020000      /* Trace Interrupt */
#define DER_SEIE        0x00004000      /* FP SW Emulation Interrupt */
#define DER_ITLBMSE     0x00002000      /* Imp. Spec. Instruction TLB Miss */
#define DER_ITLBERE     0x00001000      /* Imp. Spec. Instruction TLB Error */
#define DER_DTLBMSE     0x00000800      /* Imp. Spec. Data TLB Miss */
#define DER_DTLBERE     0x00000400      /* Imp. Spec. Data TLB Error */
#define DER_LBRKE       0x00000008      /* Load/Store Breakpoint Interrupt */
#define DER_IBRKE       0x00000004      /* Instruction Breakpoint Interrupt */
#define DER_EBRKE       0x00000002      /* External Breakpoint Interrupt */
#define DER_DPIE        0x00000001      /* Dev. Port Nonmaskable Request */
#define SPRN_DMISS      0x3D0           /* Data TLB Miss Register */
#define SPRN_DHDES      0x0B1           /* Directed Hyp. Doorbell Exc. State */
#define SPRN_DPDES      0x0B0           /* Directed Priv. Doorbell Exc. State */
#define SPRN_EAR        0x11A           /* External Address Register */
#define SPRN_HASH1      0x3D2           /* Primary Hash Address Register */
#define SPRN_HASH2      0x3D3           /* Secondary Hash Address Register */
#define SPRN_HID0       0x3F0           /* Hardware Implementation Register 0 */
#define HID0_HDICE_SH   (63 - 23)       /* 970 HDEC interrupt enable */
#define HID0_EMCP       (1<<31)         /* Enable Machine Check pin */
#define HID0_EBA        (1<<29)         /* Enable Bus Address Parity */
#define HID0_EBD        (1<<28)         /* Enable Bus Data Parity */
#define HID0_SBCLK      (1<<27)
#define HID0_EICE       (1<<26)
#define HID0_TBEN       (1<<26)         /* Timebase enable - 745x */
#define HID0_ECLK       (1<<25)
#define HID0_PAR        (1<<24)
#define HID0_STEN       (1<<24)         /* Software table search enable - 745x */
#define HID0_HIGH_BAT   (1<<23)         /* Enable high BATs - 7455 */
#define HID0_DOZE       (1<<23)
#define HID0_NAP        (1<<22)
#define HID0_SLEEP      (1<<21)
#define HID0_DPM        (1<<20)
#define HID0_BHTCLR     (1<<18)         /* Clear branch history table - 7450 */
#define HID0_XAEN       (1<<17)         /* Extended addressing enable - 7450 */
#define HID0_NHR        (1<<16)         /* Not hard reset (software bit-7450)*/
#define HID0_ICE        (1<<15)         /* Instruction Cache Enable */
#define HID0_DCE        (1<<14)         /* Data Cache Enable */
#define HID0_ILOCK      (1<<13)         /* Instruction Cache Lock */
#define HID0_DLOCK      (1<<12)         /* Data Cache Lock */
#define HID0_ICFI       (1<<11)         /* Instr. Cache Flash Invalidate */
#define HID0_DCI        (1<<10)         /* Data Cache Invalidate */
#define HID0_SPD        (1<<9)          /* Speculative disable */
#define HID0_DAPUEN     (1<<8)          /* Debug APU enable */
#define HID0_SGE        (1<<7)          /* Store Gathering Enable */
#define HID0_SIED       (1<<7)          /* Serial Instr. Execution [Disable] */
#define HID0_DCFA       (1<<6)          /* Data Cache Flush Assist */
#define HID0_LRSTK      (1<<4)          /* Link register stack - 745x */
#define HID0_BTIC       (1<<5)          /* Branch Target Instr Cache Enable */
#define HID0_ABE        (1<<3)          /* Address Broadcast Enable */
#define HID0_FOLD       (1<<3)          /* Branch Folding enable - 745x */
#define HID0_BHTE       (1<<2)          /* Branch History Table Enable */
#define HID0_BTCD       (1<<1)          /* Branch target cache disable */
#define HID0_NOPDST     (1<<1)          /* No-op dst, dstt, etc. instr. */
#define HID0_NOPTI      (1<<0)          /* No-op dcbt and dcbst instr. */
/* POWER8 HID0 bits */
#define HID0_POWER8_4LPARMODE   __MASK(61)
#define HID0_POWER8_2LPARMODE   __MASK(57)
#define HID0_POWER8_1TO2LPAR    __MASK(52)
#define HID0_POWER8_1TO4LPAR    __MASK(51)
#define HID0_POWER8_DYNLPARDIS  __MASK(48)

/* POWER9 HID0 bits */
#define HID0_POWER9_RADIX       __MASK(63 - 8)

#define SPRN_HID1       0x3F1           /* Hardware Implementation Register 1 */
#ifdef CONFIG_PPC_BOOK3S_32
#define HID1_EMCP       (1<<31)         /* 7450 Machine Check Pin Enable */
#define HID1_DFS        (1<<22)         /* 7447A Dynamic Frequency Scaling */
#define HID1_PC0        (1<<16)         /* 7450 PLL_CFG[0] */
#define HID1_PC1        (1<<15)         /* 7450 PLL_CFG[1] */
#define HID1_PC2        (1<<14)         /* 7450 PLL_CFG[2] */
#define HID1_PC3        (1<<13)         /* 7450 PLL_CFG[3] */
#define HID1_SYNCBE     (1<<11)         /* 7450 ABE for sync, eieio */
#define HID1_ABE        (1<<10)         /* 7450 Address Broadcast Enable */
#define HID1_PS         (1<<16)         /* 750FX PLL selection */
#endif
#define SPRN_HID2       0x3F8           /* Hardware Implementation Register 2 */
#define SPRN_HID2_GEKKO 0x398           /* Gekko HID2 Register */
#define SPRN_IABR       0x3F2   /* Instruction Address Breakpoint Register */
#define SPRN_IABR2      0x3FA           /* 83xx */
#define SPRN_IBCR       0x135           /* 83xx Insn Breakpoint Control Reg */
#define SPRN_IAMR       0x03D           /* Instr. Authority Mask Reg */
#define SPRN_HID4       0x3F4           /* 970 HID4 */
#define  HID4_LPES0      (1ul << (63-0)) /* LPAR env. sel. bit 0 */
#define  HID4_RMLS2_SH   (63 - 2)       /* Real mode limit bottom 2 bits */
#define  HID4_LPID5_SH   (63 - 6)       /* partition ID bottom 4 bits */
#define  HID4_RMOR_SH    (63 - 22)      /* real mode offset (16 bits) */
#define  HID4_RMOR       (0xFFFFul << HID4_RMOR_SH)
#define  HID4_LPES1      (1 << (63-57)) /* LPAR env. sel. bit 1 */
#define  HID4_RMLS0_SH   (63 - 58)      /* Real mode limit top bit */
#define  HID4_LPID1_SH   0              /* partition ID top 2 bits */
#define SPRN_HID4_GEKKO 0x3F3           /* Gekko HID4 */
#define SPRN_HID5       0x3F6           /* 970 HID5 */
#define SPRN_HID6       0x3F9   /* BE HID 6 */
#define   HID6_LB       (0x0F<<12) /* Concurrent Large Page Modes */
#define   HID6_DLP      (1<<20) /* Disable all large page modes (4K only) */
#define SPRN_TSC_CELL   0x399   /* Thread switch control on Cell */
#define   TSC_CELL_DEC_ENABLE_0 0x400000 /* Decrementer Interrupt */
#define   TSC_CELL_DEC_ENABLE_1 0x200000 /* Decrementer Interrupt */
#define   TSC_CELL_EE_ENABLE    0x100000 /* External Interrupt */
#define   TSC_CELL_EE_BOOST     0x080000 /* External Interrupt Boost */
#define SPRN_TSC        0x3FD   /* Thread switch control on others */
#define SPRN_TST        0x3FC   /* Thread switch timeout on others */
#if !defined(SPRN_IAC1) && !defined(SPRN_IAC2)
#define SPRN_IAC1       0x3F4           /* Instruction Address Compare 1 */
#define SPRN_IAC2       0x3F5           /* Instruction Address Compare 2 */
#endif
#define SPRN_IBAT0L     0x211           /* Instruction BAT 0 Lower Register */
#define SPRN_IBAT0U     0x210           /* Instruction BAT 0 Upper Register */
#define SPRN_IBAT1L     0x213           /* Instruction BAT 1 Lower Register */
#define SPRN_IBAT1U     0x212           /* Instruction BAT 1 Upper Register */
#define SPRN_IBAT2L     0x215           /* Instruction BAT 2 Lower Register */
#define SPRN_IBAT2U     0x214           /* Instruction BAT 2 Upper Register */
#define SPRN_IBAT3L     0x217           /* Instruction BAT 3 Lower Register */
#define SPRN_IBAT3U     0x216           /* Instruction BAT 3 Upper Register */
#define SPRN_IBAT4L     0x231           /* Instruction BAT 4 Lower Register */
#define SPRN_IBAT4U     0x230           /* Instruction BAT 4 Upper Register */
#define SPRN_IBAT5L     0x233           /* Instruction BAT 5 Lower Register */
#define SPRN_IBAT5U     0x232           /* Instruction BAT 5 Upper Register */
#define SPRN_IBAT6L     0x235           /* Instruction BAT 6 Lower Register */
#define SPRN_IBAT6U     0x234           /* Instruction BAT 6 Upper Register */
#define SPRN_IBAT7L     0x237           /* Instruction BAT 7 Lower Register */
#define SPRN_IBAT7U     0x236           /* Instruction BAT 7 Upper Register */
#define SPRN_ICMP       0x3D5           /* Instruction TLB Compare Register */
#define SPRN_ICTC       0x3FB   /* Instruction Cache Throttling Control Reg */
#ifndef SPRN_ICTRL
#define SPRN_ICTRL      0x3F3   /* 1011 7450 icache and interrupt ctrl */
#endif
#define ICTRL_EICE      0x08000000      /* enable icache parity errs */
#define ICTRL_EDC       0x04000000      /* enable dcache parity errs */
#define ICTRL_EICP      0x00000100      /* enable icache par. check */
#define SPRN_IMISS      0x3D4           /* Instruction TLB Miss Register */
#define SPRN_IMMR       0x27E           /* Internal Memory Map Register */
#define SPRN_L2CR       0x3F9           /* Level 2 Cache Control Register */
#define SPRN_L2CR2      0x3f8
#define L2CR_L2E                0x80000000      /* L2 enable */
#define L2CR_L2PE               0x40000000      /* L2 parity enable */
#define L2CR_L2SIZ_MASK         0x30000000      /* L2 size mask */
#define L2CR_L2SIZ_256KB        0x10000000      /* L2 size 256KB */
#define L2CR_L2SIZ_512KB        0x20000000      /* L2 size 512KB */
#define L2CR_L2SIZ_1MB          0x30000000      /* L2 size 1MB */
#define L2CR_L2CLK_MASK         0x0e000000      /* L2 clock mask */
#define L2CR_L2CLK_DISABLED     0x00000000      /* L2 clock disabled */
#define L2CR_L2CLK_DIV1         0x02000000      /* L2 clock / 1 */
#define L2CR_L2CLK_DIV1_5       0x04000000      /* L2 clock / 1.5 */
#define L2CR_L2CLK_DIV2         0x08000000      /* L2 clock / 2 */
#define L2CR_L2CLK_DIV2_5       0x0a000000      /* L2 clock / 2.5 */
#define L2CR_L2CLK_DIV3         0x0c000000      /* L2 clock / 3 */
#define L2CR_L2RAM_MASK         0x01800000      /* L2 RAM type mask */
#define L2CR_L2RAM_FLOW         0x00000000      /* L2 RAM flow through */
#define L2CR_L2RAM_PIPE         0x01000000      /* L2 RAM pipelined */
#define L2CR_L2RAM_PIPE_LW      0x01800000      /* L2 RAM pipelined latewr */
#define L2CR_L2DO               0x00400000      /* L2 data only */
#define L2CR_L2I                0x00200000      /* L2 global invalidate */
#define L2CR_L2CTL              0x00100000      /* L2 RAM control */
#define L2CR_L2WT               0x00080000      /* L2 write-through */
#define L2CR_L2TS               0x00040000      /* L2 test support */
#define L2CR_L2OH_MASK          0x00030000      /* L2 output hold mask */
#define L2CR_L2OH_0_5           0x00000000      /* L2 output hold 0.5 ns */
#define L2CR_L2OH_1_0           0x00010000      /* L2 output hold 1.0 ns */
#define L2CR_L2SL               0x00008000      /* L2 DLL slow */
#define L2CR_L2DF               0x00004000      /* L2 differential clock */
#define L2CR_L2BYP              0x00002000      /* L2 DLL bypass */
#define L2CR_L2IP               0x00000001      /* L2 GI in progress */
#define L2CR_L2IO_745x          0x00100000      /* L2 instr. only (745x) */
#define L2CR_L2DO_745x          0x00010000      /* L2 data only (745x) */
#define L2CR_L2REP_745x         0x00001000      /* L2 repl. algorithm (745x) */
#define L2CR_L2HWF_745x         0x00000800      /* L2 hardware flush (745x) */
#define SPRN_L3CR               0x3FA   /* Level 3 Cache Control Register */
#define L3CR_L3E                0x80000000      /* L3 enable */
#define L3CR_L3PE               0x40000000      /* L3 data parity enable */
#define L3CR_L3APE              0x20000000      /* L3 addr parity enable */
#define L3CR_L3SIZ              0x10000000      /* L3 size */
#define L3CR_L3CLKEN            0x08000000      /* L3 clock enable */
#define L3CR_L3RES              0x04000000      /* L3 special reserved bit */
#define L3CR_L3CLKDIV           0x03800000      /* L3 clock divisor */
#define L3CR_L3IO               0x00400000      /* L3 instruction only */
#define L3CR_L3SPO              0x00040000      /* L3 sample point override */
#define L3CR_L3CKSP             0x00030000      /* L3 clock sample point */
#define L3CR_L3PSP              0x0000e000      /* L3 P-clock sample point */
#define L3CR_L3REP              0x00001000      /* L3 replacement algorithm */
#define L3CR_L3HWF              0x00000800      /* L3 hardware flush */
#define L3CR_L3I                0x00000400      /* L3 global invalidate */
#define L3CR_L3RT               0x00000300      /* L3 SRAM type */
#define L3CR_L3NIRCA            0x00000080      /* L3 non-integer ratio clock adj. */
#define L3CR_L3DO               0x00000040      /* L3 data only mode */
#define L3CR_PMEN               0x00000004      /* L3 private memory enable */
#define L3CR_PMSIZ              0x00000001      /* L3 private memory size */

#define SPRN_MSSCR0     0x3f6   /* Memory Subsystem Control Register 0 */
#define SPRN_MSSSR0     0x3f7   /* Memory Subsystem Status Register 1 */
#define SPRN_LDSTCR     0x3f8   /* Load/Store control register */
#define SPRN_LDSTDB     0x3f4   /* */
#define SPRN_LR         0x008   /* Link Register */
#ifndef SPRN_PIR
#define SPRN_PIR        0x3FF   /* Processor Identification Register */
#endif
#define SPRN_TIR        0x1BE   /* Thread Identification Register */
#define SPRN_PTCR       0x1D0   /* Partition table control Register */
#define SPRN_PSPB       0x09F   /* Problem State Priority Boost reg */
#define SPRN_PTEHI      0x3D5   /* 981 7450 PTE HI word (S/W TLB load) */
#define SPRN_PTELO      0x3D6   /* 982 7450 PTE LO word (S/W TLB load) */
#define SPRN_PURR       0x135   /* Processor Utilization of Resources Reg */
#define SPRN_PVR        0x11F   /* Processor Version Register */
#define SPRN_RPA        0x3D6   /* Required Physical Address Register */
#define SPRN_SDA        0x3BF   /* Sampled Data Address Register */
#define SPRN_SDR1       0x019   /* MMU Hash Base Register */
#define SPRN_ASR        0x118   /* Address Space Register */
#define SPRN_SIA        0x3BB   /* Sampled Instruction Address Register */
#define SPRN_SPRG0      0x110   /* Special Purpose Register General 0 */
#define SPRN_SPRG1      0x111   /* Special Purpose Register General 1 */
#define SPRN_SPRG2      0x112   /* Special Purpose Register General 2 */
#define SPRN_SPRG3      0x113   /* Special Purpose Register General 3 */
#define SPRN_USPRG3     0x103   /* SPRG3 userspace read */
#define SPRN_SPRG4      0x114   /* Special Purpose Register General 4 */
#define SPRN_USPRG4     0x104   /* SPRG4 userspace read */
#define SPRN_SPRG5      0x115   /* Special Purpose Register General 5 */
#define SPRN_USPRG5     0x105   /* SPRG5 userspace read */
#define SPRN_SPRG6      0x116   /* Special Purpose Register General 6 */
#define SPRN_USPRG6     0x106   /* SPRG6 userspace read */
#define SPRN_SPRG7      0x117   /* Special Purpose Register General 7 */
#define SPRN_USPRG7     0x107   /* SPRG7 userspace read */
#define SPRN_SRR0       0x01A   /* Save/Restore Register 0 */
#define SPRN_SRR1       0x01B   /* Save/Restore Register 1 */

#ifdef CONFIG_PPC_BOOK3S
/*
 * Bits loaded from MSR upon interrupt.
 * PPC (64-bit) bits 33-36,42-47 are interrupt dependent, the others are
 * loaded from MSR. The exception is that SRESET and MCE do not always load
 * bit 62 (RI) from MSR. Don't use PPC_BITMASK for this because 32-bit uses
 * it.
 */
#define   SRR1_MSR_BITS         (~0x783f0000UL)
#endif

#define   SRR1_ISI_NOPT         0x40000000 /* ISI: Not found in hash */
#define   SRR1_ISI_N_G_OR_CIP   0x10000000 /* ISI: Access is no-exec or G or CI for a prefixed instruction */
#define   SRR1_ISI_PROT         0x08000000 /* ISI: Other protection fault */
#define   SRR1_WAKEMASK         0x00380000 /* reason for wakeup */
#define   SRR1_WAKEMASK_P8      0x003c0000 /* reason for wakeup on POWER8 and 9 */
#define   SRR1_WAKEMCE_RESVD    0x003c0000 /* Unused/reserved value used by MCE wakeup to indicate cause to idle wakeup handler */
#define   SRR1_WAKESYSERR       0x00300000 /* System error */
#define   SRR1_WAKEEE           0x00200000 /* External interrupt */
#define   SRR1_WAKEHVI          0x00240000 /* Hypervisor Virtualization Interrupt (P9) */
#define   SRR1_WAKEMT           0x00280000 /* mtctrl */
#define   SRR1_WAKEHMI          0x00280000 /* Hypervisor maintenance */
#define   SRR1_WAKEDEC          0x00180000 /* Decrementer interrupt */
#define   SRR1_WAKEDBELL        0x00140000 /* Privileged doorbell on P8 */
#define   SRR1_WAKETHERM        0x00100000 /* Thermal management interrupt */
#define   SRR1_WAKERESET        0x00100000 /* System reset */
#define   SRR1_WAKEHDBELL       0x000c0000 /* Hypervisor doorbell on P8 */
#define   SRR1_WAKESTATE        0x00030000 /* Powersave exit mask [46:47] */
#define   SRR1_WS_HVLOSS        0x00030000 /* HV resources not maintained */
#define   SRR1_WS_GPRLOSS       0x00020000 /* GPRs not maintained */
#define   SRR1_WS_NOLOSS        0x00010000 /* All resources maintained */
#define   SRR1_PROGTM           0x00200000 /* TM Bad Thing */
#define   SRR1_PROGFPE          0x00100000 /* Floating Point Enabled */
#define   SRR1_PROGILL          0x00080000 /* Illegal instruction */
#define   SRR1_PROGPRIV         0x00040000 /* Privileged instruction */
#define   SRR1_PROGTRAP         0x00020000 /* Trap */
#define   SRR1_PROGADDR         0x00010000 /* SRR0 contains subsequent addr */

#define   SRR1_MCE_MCP          0x00080000 /* Machine check signal caused interrupt */
#define   SRR1_BOUNDARY         0x10000000 /* Prefixed instruction crosses 64-byte boundary */
#define   SRR1_PREFIXED         0x20000000 /* Exception caused by prefixed instruction */

#define SPRN_HSRR0      0x13A   /* Save/Restore Register 0 */
#define SPRN_HSRR1      0x13B   /* Save/Restore Register 1 */
#define   HSRR1_DENORM          0x00100000 /* Denorm exception */
#define   HSRR1_HISI_WRITE      0x00010000 /* HISI bcs couldn't update mem */

#define SPRN_TBCTL      0x35f   /* PA6T Timebase control register */
#define   TBCTL_FREEZE          0x0000000000000000ull /* Freeze all tbs */
#define   TBCTL_RESTART         0x0000000100000000ull /* Restart all tbs */
#define   TBCTL_UPDATE_UPPER    0x0000000200000000ull /* Set upper 32 bits */
#define   TBCTL_UPDATE_LOWER    0x0000000300000000ull /* Set lower 32 bits */

#ifndef SPRN_SVR
#define SPRN_SVR        0x11E   /* System Version Register */
#endif
#define SPRN_THRM1      0x3FC           /* Thermal Management Register 1 */
/* these bits were defined in inverted endian sense originally, ugh, confusing */
#define THRM1_TIN       (1 << 31)
#define THRM1_TIV       (1 << 30)
#define THRM1_THRES(x)  ((x&0x7f)<<23)
#define THRM3_SITV(x)   ((x & 0x1fff) << 1)
#define THRM1_TID       (1<<2)
#define THRM1_TIE       (1<<1)
#define THRM1_V         (1<<0)
#define SPRN_THRM2      0x3FD           /* Thermal Management Register 2 */
#define SPRN_THRM3      0x3FE           /* Thermal Management Register 3 */
#define THRM3_E         (1<<0)
#define SPRN_TLBMISS    0x3D4           /* 980 7450 TLB Miss Register */
#define SPRN_UMMCR0     0x3A8   /* User Monitor Mode Control Register 0 */
#define SPRN_UMMCR1     0x3AC   /* User Monitor Mode Control Register 0 */
#define SPRN_UPMC1      0x3A9   /* User Performance Counter Register 1 */
#define SPRN_UPMC2      0x3AA   /* User Performance Counter Register 2 */
#define SPRN_UPMC3      0x3AD   /* User Performance Counter Register 3 */
#define SPRN_UPMC4      0x3AE   /* User Performance Counter Register 4 */
#define SPRN_USIA       0x3AB   /* User Sampled Instruction Address Register */
#define SPRN_VRSAVE     0x100   /* Vector Register Save Register */
#define SPRN_XER        0x001   /* Fixed Point Exception Register */

#define SPRN_MMCR0_GEKKO 0x3B8 /* Gekko Monitor Mode Control Register 0 */
#define SPRN_MMCR1_GEKKO 0x3BC /* Gekko Monitor Mode Control Register 1 */
#define SPRN_PMC1_GEKKO  0x3B9 /* Gekko Performance Monitor Control 1 */
#define SPRN_PMC2_GEKKO  0x3BA /* Gekko Performance Monitor Control 2 */
#define SPRN_PMC3_GEKKO  0x3BD /* Gekko Performance Monitor Control 3 */
#define SPRN_PMC4_GEKKO  0x3BE /* Gekko Performance Monitor Control 4 */
#define SPRN_WPAR_GEKKO  0x399 /* Gekko Write Pipe Address Register */

#define SPRN_SCOMC      0x114   /* SCOM Access Control */
#define SPRN_SCOMD      0x115   /* SCOM Access DATA */

/* Performance monitor SPRs */
#ifdef CONFIG_PPC64
#define SPRN_MMCR0      795
#define   MMCR0_FC      0x80000000UL /* freeze counters */
#define   MMCR0_FCS     0x40000000UL /* freeze in supervisor state */
#define   MMCR0_KERNEL_DISABLE MMCR0_FCS
#define   MMCR0_FCP     0x20000000UL /* freeze in problem state */
#define   MMCR0_PROBLEM_DISABLE MMCR0_FCP
#define   MMCR0_FCM1    0x10000000UL /* freeze counters while MSR mark = 1 */
#define   MMCR0_FCM0    0x08000000UL /* freeze counters while MSR mark = 0 */
#define   MMCR0_PMXE    ASM_CONST(0x04000000) /* perf mon exception enable */
#define   MMCR0_FCECE   ASM_CONST(0x02000000) /* freeze ctrs on enabled cond or event */
#define   MMCR0_TBEE    0x00400000UL /* time base exception enable */
#define   MMCR0_BHRBA   0x00200000UL /* BHRB Access allowed in userspace */
#define   MMCR0_EBE     0x00100000UL /* Event based branch enable */
#define   MMCR0_PMCC    0x000c0000UL /* PMC control */
#define   MMCR0_PMCCEXT ASM_CONST(0x00000200) /* PMCCEXT control */
#define   MMCR0_PMCC_U6 0x00080000UL /* PMC1-6 are R/W by user (PR) */
#define   MMCR0_PMC1CE  0x00008000UL /* PMC1 count enable*/
#define   MMCR0_PMCjCE  ASM_CONST(0x00004000) /* PMCj count enable*/
#define   MMCR0_TRIGGER 0x00002000UL /* TRIGGER enable */
#define   MMCR0_PMAO_SYNC ASM_CONST(0x00000800) /* PMU intr is synchronous */
#define   MMCR0_C56RUN  ASM_CONST(0x00000100) /* PMC5/6 count when RUN=0 */
/* performance monitor alert has occurred, set to 0 after handling exception */
#define   MMCR0_PMAO    ASM_CONST(0x00000080)
#define   MMCR0_SHRFC   0x00000040UL /* SHRre freeze conditions between threads */
#define   MMCR0_FC56    0x00000010UL /* freeze counters 5 and 6 */
#define   MMCR0_FCTI    0x00000008UL /* freeze counters in tags inactive mode */
#define   MMCR0_FCTA    0x00000004UL /* freeze counters in tags active mode */
#define   MMCR0_FCWAIT  0x00000002UL /* freeze counter in WAIT state */
#define   MMCR0_FCHV    0x00000001UL /* freeze conditions in hypervisor mode */
#define SPRN_MMCR1      798
#define SPRN_MMCR2      785
#define SPRN_MMCR3      754
#define SPRN_UMMCR2     769
#define SPRN_UMMCR3     738
#define SPRN_MMCRA      0x312
#define   MMCRA_SDSYNC  0x80000000UL /* SDAR synced with SIAR */
#define   MMCRA_SDAR_DCACHE_MISS 0x40000000UL
#define   MMCRA_SDAR_ERAT_MISS   0x20000000UL
#define   MMCRA_SIHV    0x10000000UL /* state of MSR HV when SIAR set */
#define   MMCRA_SIPR    0x08000000UL /* state of MSR PR when SIAR set */
#define   MMCRA_SLOT    0x07000000UL /* SLOT bits (37-39) */
#define   MMCRA_SLOT_SHIFT      24
#define   MMCRA_SAMPLE_ENABLE 0x00000001UL /* enable sampling */
#define   MMCRA_BHRB_DISABLE  _UL(0x2000000000) // BHRB disable bit for ISA v3.1
#define   POWER6_MMCRA_SDSYNC 0x0000080000000000ULL     /* SDAR/SIAR synced */
#define   POWER6_MMCRA_SIHV   0x0000040000000000ULL
#define   POWER6_MMCRA_SIPR   0x0000020000000000ULL
#define   POWER6_MMCRA_THRM     0x00000020UL
#define   POWER6_MMCRA_OTHER    0x0000000EUL

#define   POWER7P_MMCRA_SIAR_VALID 0x10000000   /* P7+ SIAR contents valid */
#define   POWER7P_MMCRA_SDAR_VALID 0x08000000   /* P7+ SDAR contents valid */

#define SPRN_MMCRH      316     /* Hypervisor monitor mode control register */
#define SPRN_MMCRS      894     /* Supervisor monitor mode control register */
#define SPRN_MMCRC      851     /* Core monitor mode control register */
#define SPRN_EBBHR      804     /* Event based branch handler register */
#define SPRN_EBBRR      805     /* Event based branch return register */
#define SPRN_BESCR      806     /* Branch event status and control register */
#define   BESCR_GE      0x8000000000000000ULL /* Global Enable */
#define SPRN_WORT       895     /* Workload optimization register - thread */
#define SPRN_WORC       863     /* Workload optimization register - core */

#define SPRN_PMC1       787
#define SPRN_PMC2       788
#define SPRN_PMC3       789
#define SPRN_PMC4       790
#define SPRN_PMC5       791
#define SPRN_PMC6       792
#define SPRN_PMC7       793
#define SPRN_PMC8       794
#define SPRN_SIER       784
#define   SIER_SIPR             0x2000000       /* Sampled MSR_PR */
#define   SIER_SIHV             0x1000000       /* Sampled MSR_HV */
#define   SIER_SIAR_VALID       0x0400000       /* SIAR contents valid */
#define   SIER_SDAR_VALID       0x0200000       /* SDAR contents valid */
#define SPRN_SIER2      752
#define SPRN_SIER3      753
#define SPRN_USIER2     736
#define SPRN_USIER3     737
#define SPRN_SIAR       796
#define SPRN_SDAR       797
#define SPRN_TACR       888
#define SPRN_TCSCR      889
#define SPRN_CSIGR      890
#define SPRN_SPMC1      892
#define SPRN_SPMC2      893

/* When EBB is enabled, some of MMCR0/MMCR2/SIER are user accessible */
#define MMCR0_USER_MASK (MMCR0_FC | MMCR0_PMXE | MMCR0_PMAO)
#define MMCR2_USER_MASK 0x4020100804020000UL /* (FC1P|FC2P|FC3P|FC4P|FC5P|FC6P) */
#define SIER_USER_MASK  0x7fffffUL

#define SPRN_PA6T_MMCR0 795
#define   PA6T_MMCR0_EN0        0x0000000000000001UL
#define   PA6T_MMCR0_EN1        0x0000000000000002UL
#define   PA6T_MMCR0_EN2        0x0000000000000004UL
#define   PA6T_MMCR0_EN3        0x0000000000000008UL
#define   PA6T_MMCR0_EN4        0x0000000000000010UL
#define   PA6T_MMCR0_EN5        0x0000000000000020UL
#define   PA6T_MMCR0_SUPEN      0x0000000000000040UL
#define   PA6T_MMCR0_PREN       0x0000000000000080UL
#define   PA6T_MMCR0_HYPEN      0x0000000000000100UL
#define   PA6T_MMCR0_FCM0       0x0000000000000200UL
#define   PA6T_MMCR0_FCM1       0x0000000000000400UL
#define   PA6T_MMCR0_INTGEN     0x0000000000000800UL
#define   PA6T_MMCR0_INTEN0     0x0000000000001000UL
#define   PA6T_MMCR0_INTEN1     0x0000000000002000UL
#define   PA6T_MMCR0_INTEN2     0x0000000000004000UL
#define   PA6T_MMCR0_INTEN3     0x0000000000008000UL
#define   PA6T_MMCR0_INTEN4     0x0000000000010000UL
#define   PA6T_MMCR0_INTEN5     0x0000000000020000UL
#define   PA6T_MMCR0_DISCNT     0x0000000000040000UL
#define   PA6T_MMCR0_UOP        0x0000000000080000UL
#define   PA6T_MMCR0_TRG        0x0000000000100000UL
#define   PA6T_MMCR0_TRGEN      0x0000000000200000UL
#define   PA6T_MMCR0_TRGREG     0x0000000001600000UL
#define   PA6T_MMCR0_SIARLOG    0x0000000002000000UL
#define   PA6T_MMCR0_SDARLOG    0x0000000004000000UL
#define   PA6T_MMCR0_PROEN      0x0000000008000000UL
#define   PA6T_MMCR0_PROLOG     0x0000000010000000UL
#define   PA6T_MMCR0_DAMEN2     0x0000000020000000UL
#define   PA6T_MMCR0_DAMEN3     0x0000000040000000UL
#define   PA6T_MMCR0_DAMEN4     0x0000000080000000UL
#define   PA6T_MMCR0_DAMEN5     0x0000000100000000UL
#define   PA6T_MMCR0_DAMSEL2    0x0000000200000000UL
#define   PA6T_MMCR0_DAMSEL3    0x0000000400000000UL
#define   PA6T_MMCR0_DAMSEL4    0x0000000800000000UL
#define   PA6T_MMCR0_DAMSEL5    0x0000001000000000UL
#define   PA6T_MMCR0_HANDDIS    0x0000002000000000UL
#define   PA6T_MMCR0_PCTEN      0x0000004000000000UL
#define   PA6T_MMCR0_SOCEN      0x0000008000000000UL
#define   PA6T_MMCR0_SOCMOD     0x0000010000000000UL

#define SPRN_PA6T_MMCR1 798
#define   PA6T_MMCR1_ES2        0x00000000000000ffUL
#define   PA6T_MMCR1_ES3        0x000000000000ff00UL
#define   PA6T_MMCR1_ES4        0x0000000000ff0000UL
#define   PA6T_MMCR1_ES5        0x00000000ff000000UL

#define SPRN_PA6T_UPMC0 771     /* User PerfMon Counter 0 */
#define SPRN_PA6T_UPMC1 772     /* ... */
#define SPRN_PA6T_UPMC2 773
#define SPRN_PA6T_UPMC3 774
#define SPRN_PA6T_UPMC4 775
#define SPRN_PA6T_UPMC5 776
#define SPRN_PA6T_UMMCR0 779    /* User Monitor Mode Control Register 0 */
#define SPRN_PA6T_SIAR  780     /* Sampled Instruction Address */

#define SPRN_PA6T_UMMCR1 782    /* User Monitor Mode Control Register 1 */
#define SPRN_PA6T_SIER  785     /* Sampled Instruction Event Register */
#define SPRN_PA6T_PMC0  787
#define SPRN_PA6T_PMC1  788
#define SPRN_PA6T_PMC2  789
#define SPRN_PA6T_PMC3  790
#define SPRN_PA6T_PMC4  791
#define SPRN_PA6T_PMC5  792
#define SPRN_PA6T_TSR0  793     /* Timestamp Register 0 */
#define SPRN_PA6T_TSR1  794     /* Timestamp Register 1 */
#define SPRN_PA6T_TSR2  799     /* Timestamp Register 2 */
#define SPRN_PA6T_TSR3  784     /* Timestamp Register 3 */

#define SPRN_PA6T_IER   981     /* Icache Error Register */
#define SPRN_PA6T_DER   982     /* Dcache Error Register */
#define SPRN_PA6T_BER   862     /* BIU Error Address Register */
#define SPRN_PA6T_MER   849     /* MMU Error Register */

#define SPRN_PA6T_IMA0  880     /* Instruction Match Array 0 */
#define SPRN_PA6T_IMA1  881     /* ... */
#define SPRN_PA6T_IMA2  882
#define SPRN_PA6T_IMA3  883
#define SPRN_PA6T_IMA4  884
#define SPRN_PA6T_IMA5  885
#define SPRN_PA6T_IMA6  886
#define SPRN_PA6T_IMA7  887
#define SPRN_PA6T_IMA8  888
#define SPRN_PA6T_IMA9  889
#define SPRN_PA6T_BTCR  978     /* Breakpoint and Tagging Control Register */
#define SPRN_PA6T_IMAAT 979     /* Instruction Match Array Action Table */
#define SPRN_PA6T_PCCR  1019    /* Power Counter Control Register */
#define SPRN_BKMK       1020    /* Cell Bookmark Register */
#define SPRN_PA6T_RPCCR 1021    /* Retire PC Trace Control Register */


#else /* 32-bit */
#define SPRN_MMCR0      952     /* Monitor Mode Control Register 0 */
#define   MMCR0_FC      0x80000000UL /* freeze counters */
#define   MMCR0_FCS     0x40000000UL /* freeze in supervisor state */
#define   MMCR0_FCP     0x20000000UL /* freeze in problem state */
#define   MMCR0_FCM1    0x10000000UL /* freeze counters while MSR mark = 1 */
#define   MMCR0_FCM0    0x08000000UL /* freeze counters while MSR mark = 0 */
#define   MMCR0_PMXE    0x04000000UL /* performance monitor exception enable */
#define   MMCR0_FCECE   0x02000000UL /* freeze ctrs on enabled cond or event */
#define   MMCR0_TBEE    0x00400000UL /* time base exception enable */
#define   MMCR0_PMC1CE  0x00008000UL /* PMC1 count enable*/
#define   MMCR0_PMCnCE  0x00004000UL /* count enable for all but PMC 1*/
#define   MMCR0_TRIGGER 0x00002000UL /* TRIGGER enable */
#define   MMCR0_PMC1SEL 0x00001fc0UL /* PMC 1 Event */
#define   MMCR0_PMC2SEL 0x0000003fUL /* PMC 2 Event */

#define SPRN_MMCR1      956
#define   MMCR1_PMC3SEL 0xf8000000UL /* PMC 3 Event */
#define   MMCR1_PMC4SEL 0x07c00000UL /* PMC 4 Event */
#define   MMCR1_PMC5SEL 0x003e0000UL /* PMC 5 Event */
#define   MMCR1_PMC6SEL 0x0001f800UL /* PMC 6 Event */
#define SPRN_MMCR2      944
#define SPRN_PMC1       953     /* Performance Counter Register 1 */
#define SPRN_PMC2       954     /* Performance Counter Register 2 */
#define SPRN_PMC3       957     /* Performance Counter Register 3 */
#define SPRN_PMC4       958     /* Performance Counter Register 4 */
#define SPRN_PMC5       945     /* Performance Counter Register 5 */
#define SPRN_PMC6       946     /* Performance Counter Register 6 */

#define SPRN_SIAR       955     /* Sampled Instruction Address Register */

/* Bit definitions for MMCR0 and PMC1 / PMC2. */
#define MMCR0_PMC1_CYCLES       (1 << 7)
#define MMCR0_PMC1_ICACHEMISS   (5 << 7)
#define MMCR0_PMC1_DTLB         (6 << 7)
#define MMCR0_PMC2_DCACHEMISS   0x6
#define MMCR0_PMC2_CYCLES       0x1
#define MMCR0_PMC2_ITLB         0x7
#define MMCR0_PMC2_LOADMISSTIME 0x5
#endif

/*
 * SPRG usage:
 *
 * All 64-bit:
 *      - SPRG1 stores PACA pointer except 64-bit server in
 *        HV mode in which case it is HSPRG0
 *
 * 64-bit server:
 *      - SPRG0 scratch for TM recheckpoint/reclaim (reserved for HV on Power4)
 *      - SPRG2 scratch for exception vectors
 *      - SPRG3 CPU and NUMA node for VDSO getcpu (user visible)
 *      - HSPRG0 stores PACA in HV mode
 *      - HSPRG1 scratch for "HV" exceptions
 *
 * 64-bit embedded
 *      - SPRG0 generic exception scratch
 *      - SPRG2 TLB exception stack
 *      - SPRG3 critical exception scratch (user visible, sorry!)
 *      - SPRG4 unused (user visible)
 *      - SPRG6 TLB miss scratch (user visible, sorry !)
 *      - SPRG7 CPU and NUMA node for VDSO getcpu (user visible)
 *      - SPRG8 machine check exception scratch
 *      - SPRG9 debug exception scratch
 *
 * All 32-bit:
 *      - SPRG3 current thread_struct physical addr pointer
 *        (virtual on BookE, physical on others)
 *
 * 32-bit classic:
 *      - SPRG0 scratch for exception vectors
 *      - SPRG1 scratch for exception vectors
 *      - SPRG2 indicator that we are in RTAS
 *      - SPRG4 (603 only) pseudo TLB LRU data
 *
 * 32-bit 40x:
 *      - SPRG0 scratch for exception vectors
 *      - SPRG1 scratch for exception vectors
 *      - SPRG2 scratch for exception vectors
 *      - SPRG4 scratch for exception vectors (not 403)
 *      - SPRG5 scratch for exception vectors (not 403)
 *      - SPRG6 scratch for exception vectors (not 403)
 *      - SPRG7 scratch for exception vectors (not 403)
 *
 * 32-bit 440 and FSL BookE:
 *      - SPRG0 scratch for exception vectors
 *      - SPRG1 scratch for exception vectors (*)
 *      - SPRG2 scratch for crit interrupts handler
 *      - SPRG4 scratch for exception vectors
 *      - SPRG5 scratch for exception vectors
 *      - SPRG6 scratch for machine check handler
 *      - SPRG7 scratch for exception vectors
 *      - SPRG9 scratch for debug vectors (e500 only)
 *
 *      Additionally, BookE separates "read" and "write"
 *      of those registers. That allows to use the userspace
 *      readable variant for reads, which can avoid a fault
 *      with KVM type virtualization.
 *
 * 32-bit 8xx:
 *      - SPRG0 scratch for exception vectors
 *      - SPRG1 scratch for exception vectors
 *      - SPRG2 scratch for exception vectors
 *
 */
#ifdef CONFIG_PPC64
#define SPRN_SPRG_PACA          SPRN_SPRG1
#else
#define SPRN_SPRG_THREAD        SPRN_SPRG3
#endif

#ifdef CONFIG_PPC_BOOK3S_64
#define SPRN_SPRG_SCRATCH0      SPRN_SPRG2
#define SPRN_SPRG_HPACA         SPRN_HSPRG0
#define SPRN_SPRG_HSCRATCH0     SPRN_HSPRG1
#define SPRN_SPRG_VDSO_READ     SPRN_USPRG3
#define SPRN_SPRG_VDSO_WRITE    SPRN_SPRG3

#define GET_PACA(rX)                                    \
        BEGIN_FTR_SECTION_NESTED(66);                   \
        mfspr   rX,SPRN_SPRG_PACA;                      \
        FTR_SECTION_ELSE_NESTED(66);                    \
        mfspr   rX,SPRN_SPRG_HPACA;                     \
        ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_HVMODE, 66)

#define SET_PACA(rX)                                    \
        BEGIN_FTR_SECTION_NESTED(66);                   \
        mtspr   SPRN_SPRG_PACA,rX;                      \
        FTR_SECTION_ELSE_NESTED(66);                    \
        mtspr   SPRN_SPRG_HPACA,rX;                     \
        ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_HVMODE, 66)

#define GET_SCRATCH0(rX)                                \
        BEGIN_FTR_SECTION_NESTED(66);                   \
        mfspr   rX,SPRN_SPRG_SCRATCH0;                  \
        FTR_SECTION_ELSE_NESTED(66);                    \
        mfspr   rX,SPRN_SPRG_HSCRATCH0;                 \
        ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_HVMODE, 66)

#define SET_SCRATCH0(rX)                                \
        BEGIN_FTR_SECTION_NESTED(66);                   \
        mtspr   SPRN_SPRG_SCRATCH0,rX;                  \
        FTR_SECTION_ELSE_NESTED(66);                    \
        mtspr   SPRN_SPRG_HSCRATCH0,rX;                 \
        ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_HVMODE, 66)

#else /* CONFIG_PPC_BOOK3S_64 */
#define GET_SCRATCH0(rX)        mfspr   rX,SPRN_SPRG_SCRATCH0
#define SET_SCRATCH0(rX)        mtspr   SPRN_SPRG_SCRATCH0,rX

#endif

#ifdef CONFIG_PPC_BOOK3E_64
#define SPRN_SPRG_MC_SCRATCH    SPRN_SPRG8
#define SPRN_SPRG_CRIT_SCRATCH  SPRN_SPRG3
#define SPRN_SPRG_DBG_SCRATCH   SPRN_SPRG9
#define SPRN_SPRG_TLB_EXFRAME   SPRN_SPRG2
#define SPRN_SPRG_TLB_SCRATCH   SPRN_SPRG6
#define SPRN_SPRG_GEN_SCRATCH   SPRN_SPRG0
#define SPRN_SPRG_GDBELL_SCRATCH SPRN_SPRG_GEN_SCRATCH
#define SPRN_SPRG_VDSO_READ     SPRN_USPRG7
#define SPRN_SPRG_VDSO_WRITE    SPRN_SPRG7

#define SET_PACA(rX)    mtspr   SPRN_SPRG_PACA,rX
#define GET_PACA(rX)    mfspr   rX,SPRN_SPRG_PACA

#endif

#ifdef CONFIG_PPC_BOOK3S_32
#define SPRN_SPRG_SCRATCH0      SPRN_SPRG0
#define SPRN_SPRG_SCRATCH1      SPRN_SPRG1
#define SPRN_SPRG_SCRATCH2      SPRN_SPRG2
#define SPRN_SPRG_603_LRU       SPRN_SPRG4
#endif

#ifdef CONFIG_40x
#define SPRN_SPRG_SCRATCH0      SPRN_SPRG0
#define SPRN_SPRG_SCRATCH1      SPRN_SPRG1
#define SPRN_SPRG_SCRATCH2      SPRN_SPRG2
#define SPRN_SPRG_SCRATCH3      SPRN_SPRG4
#define SPRN_SPRG_SCRATCH4      SPRN_SPRG5
#define SPRN_SPRG_SCRATCH5      SPRN_SPRG6
#define SPRN_SPRG_SCRATCH6      SPRN_SPRG7
#endif

#ifdef CONFIG_BOOKE
#define SPRN_SPRG_RSCRATCH0     SPRN_SPRG0
#define SPRN_SPRG_WSCRATCH0     SPRN_SPRG0
#define SPRN_SPRG_RSCRATCH1     SPRN_SPRG1
#define SPRN_SPRG_WSCRATCH1     SPRN_SPRG1
#define SPRN_SPRG_RSCRATCH_CRIT SPRN_SPRG2
#define SPRN_SPRG_WSCRATCH_CRIT SPRN_SPRG2
#define SPRN_SPRG_RSCRATCH2     SPRN_SPRG4R
#define SPRN_SPRG_WSCRATCH2     SPRN_SPRG4W
#define SPRN_SPRG_RSCRATCH3     SPRN_SPRG5R
#define SPRN_SPRG_WSCRATCH3     SPRN_SPRG5W
#define SPRN_SPRG_RSCRATCH_MC   SPRN_SPRG1
#define SPRN_SPRG_WSCRATCH_MC   SPRN_SPRG1
#define SPRN_SPRG_RSCRATCH4     SPRN_SPRG7R
#define SPRN_SPRG_WSCRATCH4     SPRN_SPRG7W
#define SPRN_SPRG_RSCRATCH_DBG  SPRN_SPRG9
#define SPRN_SPRG_WSCRATCH_DBG  SPRN_SPRG9
#endif

#ifdef CONFIG_PPC_8xx
#define SPRN_SPRG_SCRATCH0      SPRN_SPRG0
#define SPRN_SPRG_SCRATCH1      SPRN_SPRG1
#define SPRN_SPRG_SCRATCH2      SPRN_SPRG2
#endif



/*
 * An mtfsf instruction with the L bit set. On CPUs that support this a
 * full 64bits of FPSCR is restored and on other CPUs the L bit is ignored.
 *
 * Until binutils gets the new form of mtfsf, hardwire the instruction.
 */
#ifdef CONFIG_PPC64
#define MTFSF_L(REG) \
        .long (0xfc00058e | ((0xff) << 17) | ((REG) << 11) | (1 << 25))
#else
#define MTFSF_L(REG)    mtfsf   0xff, (REG)
#endif

/* Processor Version Register (PVR) field extraction */

#define PVR_VER(pvr)    (((pvr) >>  16) & 0xFFFF)       /* Version field */
#define PVR_REV(pvr)    (((pvr) >>   0) & 0xFFFF)       /* Revison field */

#define pvr_version_is(pvr)     (PVR_VER(mfspr(SPRN_PVR)) == (pvr))

/*
 * IBM has further subdivided the standard PowerPC 16-bit version and
 * revision subfields of the PVR for the PowerPC 403s into the following:
 */

#define PVR_FAM(pvr)    (((pvr) >> 20) & 0xFFF) /* Family field */
#define PVR_MEM(pvr)    (((pvr) >> 16) & 0xF)   /* Member field */
#define PVR_CORE(pvr)   (((pvr) >> 12) & 0xF)   /* Core field */
#define PVR_CFG(pvr)    (((pvr) >>  8) & 0xF)   /* Configuration field */
#define PVR_MAJ(pvr)    (((pvr) >>  4) & 0xF)   /* Major revision field */
#define PVR_MIN(pvr)    (((pvr) >>  0) & 0xF)   /* Minor revision field */

/* Processor Version Numbers */

#define PVR_403GA       0x00200000
#define PVR_403GB       0x00200100
#define PVR_403GC       0x00200200
#define PVR_403GCX      0x00201400
#define PVR_405GP       0x40110000
#define PVR_476         0x11a52000
#define PVR_476FPE      0x7ff50000
#define PVR_STB03XXX    0x40310000
#define PVR_NP405H      0x41410000
#define PVR_NP405L      0x41610000
#define PVR_601         0x00010000
#define PVR_602         0x00050000
#define PVR_603         0x00030000
#define PVR_603e        0x00060000
#define PVR_603ev       0x00070000
#define PVR_603r        0x00071000
#define PVR_604         0x00040000
#define PVR_604e        0x00090000
#define PVR_604r        0x000A0000
#define PVR_620         0x00140000
#define PVR_740         0x00080000
#define PVR_750         PVR_740
#define PVR_740P        0x10080000
#define PVR_750P        PVR_740P
#define PVR_7400        0x000C0000
#define PVR_7410        0x800C0000
#define PVR_7450        0x80000000
#define PVR_8540        0x80200000
#define PVR_8560        0x80200000
#define PVR_VER_E500V1  0x8020
#define PVR_VER_E500V2  0x8021
#define PVR_VER_E500MC  0x8023
#define PVR_VER_E5500   0x8024
#define PVR_VER_E6500   0x8040

/*
 * For the 8xx processors, all of them report the same PVR family for
 * the PowerPC core. The various versions of these processors must be
 * differentiated by the version number in the Communication Processor
 * Module (CPM).
 */
#define PVR_8xx         0x00500000

#define PVR_8240        0x00810100
#define PVR_8245        0x80811014
#define PVR_8260        PVR_8240

/* 476 Simulator seems to currently have the PVR of the 602... */
#define PVR_476_ISS     0x00052000

/* 64-bit processors */
#define PVR_NORTHSTAR   0x0033
#define PVR_PULSAR      0x0034
#define PVR_POWER4      0x0035
#define PVR_ICESTAR     0x0036
#define PVR_SSTAR       0x0037
#define PVR_POWER4p     0x0038
#define PVR_970         0x0039
#define PVR_POWER5      0x003A
#define PVR_POWER5p     0x003B
#define PVR_970FX       0x003C
#define PVR_POWER6      0x003E
#define PVR_POWER7      0x003F
#define PVR_630         0x0040
#define PVR_630p        0x0041
#define PVR_970MP       0x0044
#define PVR_970GX       0x0045
#define PVR_POWER7p     0x004A
#define PVR_POWER8E     0x004B
#define PVR_POWER8NVL   0x004C
#define PVR_POWER8      0x004D
#define PVR_POWER9      0x004E
#define PVR_POWER10     0x0080
#define PVR_BE          0x0070
#define PVR_PA6T        0x0090

/* "Logical" PVR values defined in PAPR, representing architecture levels */
#define PVR_ARCH_204    0x0f000001
#define PVR_ARCH_205    0x0f000002
#define PVR_ARCH_206    0x0f000003
#define PVR_ARCH_206p   0x0f100003
#define PVR_ARCH_207    0x0f000004
#define PVR_ARCH_300    0x0f000005
#define PVR_ARCH_31     0x0f000006

/* Macros for setting and retrieving special purpose registers */
#ifndef __ASSEMBLY__
#define mfmsr()         ({unsigned long rval; \
                        asm volatile("mfmsr %0" : "=r" (rval) : \
                                                : "memory"); rval;})
#ifdef CONFIG_PPC_BOOK3S_64
#define __mtmsrd(v, l)  asm volatile("mtmsrd %0," __stringify(l) \
                                     : : "r" (v) : "memory")
#define mtmsr(v)        __mtmsrd((v), 0)
#define __MTMSR         "mtmsrd"
#else
#define mtmsr(v)        asm volatile("mtmsr %0" : \
                                     : "r" ((unsigned long)(v)) \
                                     : "memory")
#define __mtmsrd(v, l)  BUILD_BUG()
#define __MTMSR         "mtmsr"
#endif

static inline void mtmsr_isync(unsigned long val)
{
        asm volatile(__MTMSR " %0; " ASM_FTR_IFCLR("isync", "nop", %1) : :
                        "r" (val), "i" (CPU_FTR_ARCH_206) : "memory");
}

#define mfspr(rn)       ({unsigned long rval; \
                        asm volatile("mfspr %0," __stringify(rn) \
                                : "=r" (rval)); rval;})
#ifndef mtspr
#define mtspr(rn, v)    asm volatile("mtspr " __stringify(rn) ",%0" : \
                                     : "r" ((unsigned long)(v)) \
                                     : "memory")
#endif
#define wrtspr(rn)      asm volatile("mtspr " __stringify(rn) ",2" : : : "memory")

static inline void wrtee(unsigned long val)
{
        if (__builtin_constant_p(val))
                asm volatile("wrteei %0" : : "i" ((val & MSR_EE) ? 1 : 0) : "memory");
        else
                asm volatile("wrtee %0" : : "r" (val) : "memory");
}

extern unsigned long msr_check_and_set(unsigned long bits);
extern bool strict_msr_control;
extern void __msr_check_and_clear(unsigned long bits);
static inline void msr_check_and_clear(unsigned long bits)
{
        if (strict_msr_control)
                __msr_check_and_clear(bits);
}

#ifdef CONFIG_PPC32
static inline u32 mfsr(u32 idx)
{
        u32 val;

        if (__builtin_constant_p(idx))
                asm volatile("mfsr %0, %1" : "=r" (val): "i" (idx >> 28));
        else
                asm volatile("mfsrin %0, %1" : "=r" (val): "r" (idx));

        return val;
}

static inline void mtsr(u32 val, u32 idx)
{
        if (__builtin_constant_p(idx))
                asm volatile("mtsr %1, %0" : : "r" (val), "i" (idx >> 28));
        else
                asm volatile("mtsrin %0, %1" : : "r" (val), "r" (idx));
}
#endif

extern unsigned long current_stack_frame(void);

register unsigned long current_stack_pointer asm("r1");

extern unsigned long scom970_read(unsigned int address);
extern void scom970_write(unsigned int address, unsigned long value);

struct pt_regs;

extern void ppc_save_regs(struct pt_regs *regs);
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_REG_H */