LXR linux/arch/powerpc/include/asm/reg.h

   1/*
   2 * Contains the definition of registers common to all PowerPC variants.
   3 * If a register definition has been changed in a different PowerPC
   4 * variant, we will case it in #ifndef XXX ... #endif, and have the
   5 * number used in the Programming Environments Manual For 32-Bit
   6 * Implementations of the PowerPC Architecture (a.k.a. Green Book) here.
   7 */
   8
   9#ifndef _ASM_POWERPC_REG_H
  10#define _ASM_POWERPC_REG_H
  11#ifdef __KERNEL__
  12
  13#include <linux/stringify.h>
  14#include <asm/cputable.h>
  15
  16/* Pickup Book E specific registers. */
  17#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
  18#include <asm/reg_booke.h>
  19#endif /* CONFIG_BOOKE || CONFIG_40x */
  20
  21#ifdef CONFIG_FSL_EMB_PERFMON
  22#include <asm/reg_fsl_emb.h>
  23#endif
  24
  25#ifdef CONFIG_8xx
  26#include <asm/reg_8xx.h>
  27#endif /* CONFIG_8xx */
  28
  29#define MSR_SF_LG       63              /* Enable 64 bit mode */
  30#define MSR_ISF_LG      61              /* Interrupt 64b mode valid on 630 */
  31#define MSR_HV_LG       60              /* Hypervisor state */
  32#define MSR_VEC_LG      25              /* Enable AltiVec */
  33#define MSR_VSX_LG      23              /* Enable VSX */
  34#define MSR_POW_LG      18              /* Enable Power Management */
  35#define MSR_WE_LG       18              /* Wait State Enable */
  36#define MSR_TGPR_LG     17              /* TLB Update registers in use */
  37#define MSR_CE_LG       17              /* Critical Interrupt Enable */
  38#define MSR_ILE_LG      16              /* Interrupt Little Endian */
  39#define MSR_EE_LG       15              /* External Interrupt Enable */
  40#define MSR_PR_LG       14              /* Problem State / Privilege Level */
  41#define MSR_FP_LG       13              /* Floating Point enable */
  42#define MSR_ME_LG       12              /* Machine Check Enable */
  43#define MSR_FE0_LG      11              /* Floating Exception mode 0 */
  44#define MSR_SE_LG       10              /* Single Step */
  45#define MSR_BE_LG       9               /* Branch Trace */
  46#define MSR_DE_LG       9               /* Debug Exception Enable */
  47#define MSR_FE1_LG      8               /* Floating Exception mode 1 */
  48#define MSR_IP_LG       6               /* Exception prefix 0x000/0xFFF */
  49#define MSR_IR_LG       5               /* Instruction Relocate */
  50#define MSR_DR_LG       4               /* Data Relocate */
  51#define MSR_PE_LG       3               /* Protection Enable */
  52#define MSR_PX_LG       2               /* Protection Exclusive Mode */
  53#define MSR_PMM_LG      2               /* Performance monitor */
  54#define MSR_RI_LG       1               /* Recoverable Exception */
  55#define MSR_LE_LG       0               /* Little Endian */
  56
  57#ifdef __ASSEMBLY__
  58#define __MASK(X)       (1<<(X))
  59#else
  60#define __MASK(X)       (1UL<<(X))
  61#endif
  62
  63#ifdef CONFIG_PPC64
  64#define MSR_SF          __MASK(MSR_SF_LG)       /* Enable 64 bit mode */
  65#define MSR_ISF         __MASK(MSR_ISF_LG)      /* Interrupt 64b mode valid on 630 */
  66#define MSR_HV          __MASK(MSR_HV_LG)       /* Hypervisor state */
  67#else
  68/* so tests for these bits fail on 32-bit */
  69#define MSR_SF          0
  70#define MSR_ISF         0
  71#define MSR_HV          0
  72#endif
  73
  74#define MSR_VEC         __MASK(MSR_VEC_LG)      /* Enable AltiVec */
  75#define MSR_VSX         __MASK(MSR_VSX_LG)      /* Enable VSX */
  76#define MSR_POW         __MASK(MSR_POW_LG)      /* Enable Power Management */
  77#define MSR_WE          __MASK(MSR_WE_LG)       /* Wait State Enable */
  78#define MSR_TGPR        __MASK(MSR_TGPR_LG)     /* TLB Update registers in use */
  79#define MSR_CE          __MASK(MSR_CE_LG)       /* Critical Interrupt Enable */
  80#define MSR_ILE         __MASK(MSR_ILE_LG)      /* Interrupt Little Endian */
  81#define MSR_EE          __MASK(MSR_EE_LG)       /* External Interrupt Enable */
  82#define MSR_PR          __MASK(MSR_PR_LG)       /* Problem State / Privilege Level */
  83#define MSR_FP          __MASK(MSR_FP_LG)       /* Floating Point enable */
  84#define MSR_ME          __MASK(MSR_ME_LG)       /* Machine Check Enable */
  85#define MSR_FE0         __MASK(MSR_FE0_LG)      /* Floating Exception mode 0 */
  86#define MSR_SE          __MASK(MSR_SE_LG)       /* Single Step */
  87#define MSR_BE          __MASK(MSR_BE_LG)       /* Branch Trace */
  88#define MSR_DE          __MASK(MSR_DE_LG)       /* Debug Exception Enable */
  89#define MSR_FE1         __MASK(MSR_FE1_LG)      /* Floating Exception mode 1 */
  90#define MSR_IP          __MASK(MSR_IP_LG)       /* Exception prefix 0x000/0xFFF */
  91#define MSR_IR          __MASK(MSR_IR_LG)       /* Instruction Relocate */
  92#define MSR_DR          __MASK(MSR_DR_LG)       /* Data Relocate */
  93#define MSR_PE          __MASK(MSR_PE_LG)       /* Protection Enable */
  94#define MSR_PX          __MASK(MSR_PX_LG)       /* Protection Exclusive Mode */
  95#ifndef MSR_PMM
  96#define MSR_PMM         __MASK(MSR_PMM_LG)      /* Performance monitor */
  97#endif
  98#define MSR_RI          __MASK(MSR_RI_LG)       /* Recoverable Exception */
  99#define MSR_LE          __MASK(MSR_LE_LG)       /* Little Endian */
 100
 101#if defined(CONFIG_PPC_BOOK3S_64)
 102/* Server variant */
 103#define MSR_            MSR_ME | MSR_RI | MSR_IR | MSR_DR | MSR_ISF |MSR_HV
 104#define MSR_KERNEL      MSR_ | MSR_SF
 105#define MSR_USER32      MSR_ | MSR_PR | MSR_EE
 106#define MSR_USER64      MSR_USER32 | MSR_SF
 107#elif defined(CONFIG_PPC_BOOK3S_32) || defined(CONFIG_8xx)
 108/* Default MSR for kernel mode. */
 109#define MSR_KERNEL      (MSR_ME|MSR_RI|MSR_IR|MSR_DR)
 110#define MSR_USER        (MSR_KERNEL|MSR_PR|MSR_EE)
 111#endif
 112
 113/* Floating Point Status and Control Register (FPSCR) Fields */
 114#define FPSCR_FX        0x80000000      /* FPU exception summary */
 115#define FPSCR_FEX       0x40000000      /* FPU enabled exception summary */
 116#define FPSCR_VX        0x20000000      /* Invalid operation summary */
 117#define FPSCR_OX        0x10000000      /* Overflow exception summary */
 118#define FPSCR_UX        0x08000000      /* Underflow exception summary */
 119#define FPSCR_ZX        0x04000000      /* Zero-divide exception summary */
 120#define FPSCR_XX        0x02000000      /* Inexact exception summary */
 121#define FPSCR_VXSNAN    0x01000000      /* Invalid op for SNaN */
 122#define FPSCR_VXISI     0x00800000      /* Invalid op for Inv - Inv */
 123#define FPSCR_VXIDI     0x00400000      /* Invalid op for Inv / Inv */
 124#define FPSCR_VXZDZ     0x00200000      /* Invalid op for Zero / Zero */
 125#define FPSCR_VXIMZ     0x00100000      /* Invalid op for Inv * Zero */
 126#define FPSCR_VXVC      0x00080000      /* Invalid op for Compare */
 127#define FPSCR_FR        0x00040000      /* Fraction rounded */
 128#define FPSCR_FI        0x00020000      /* Fraction inexact */
 129#define FPSCR_FPRF      0x0001f000      /* FPU Result Flags */
 130#define FPSCR_FPCC      0x0000f000      /* FPU Condition Codes */
 131#define FPSCR_VXSOFT    0x00000400      /* Invalid op for software request */
 132#define FPSCR_VXSQRT    0x00000200      /* Invalid op for square root */
 133#define FPSCR_VXCVI     0x00000100      /* Invalid op for integer convert */
 134#define FPSCR_VE        0x00000080      /* Invalid op exception enable */
 135#define FPSCR_OE        0x00000040      /* IEEE overflow exception enable */
 136#define FPSCR_UE        0x00000020      /* IEEE underflow exception enable */
 137#define FPSCR_ZE        0x00000010      /* IEEE zero divide exception enable */
 138#define FPSCR_XE        0x00000008      /* FP inexact exception enable */
 139#define FPSCR_NI        0x00000004      /* FPU non IEEE-Mode */
 140#define FPSCR_RN        0x00000003      /* FPU rounding control */
 141
 142/* Bit definitions for SPEFSCR. */
 143#define SPEFSCR_SOVH    0x80000000      /* Summary integer overflow high */
 144#define SPEFSCR_OVH     0x40000000      /* Integer overflow high */
 145#define SPEFSCR_FGH     0x20000000      /* Embedded FP guard bit high */
 146#define SPEFSCR_FXH     0x10000000      /* Embedded FP sticky bit high */
 147#define SPEFSCR_FINVH   0x08000000      /* Embedded FP invalid operation high */
 148#define SPEFSCR_FDBZH   0x04000000      /* Embedded FP div by zero high */
 149#define SPEFSCR_FUNFH   0x02000000      /* Embedded FP underflow high */
 150#define SPEFSCR_FOVFH   0x01000000      /* Embedded FP overflow high */
 151#define SPEFSCR_FINXS   0x00200000      /* Embedded FP inexact sticky */
 152#define SPEFSCR_FINVS   0x00100000      /* Embedded FP invalid op. sticky */
 153#define SPEFSCR_FDBZS   0x00080000      /* Embedded FP div by zero sticky */
 154#define SPEFSCR_FUNFS   0x00040000      /* Embedded FP underflow sticky */
 155#define SPEFSCR_FOVFS   0x00020000      /* Embedded FP overflow sticky */
 156#define SPEFSCR_MODE    0x00010000      /* Embedded FP mode */
 157#define SPEFSCR_SOV     0x00008000      /* Integer summary overflow */
 158#define SPEFSCR_OV      0x00004000      /* Integer overflow */
 159#define SPEFSCR_FG      0x00002000      /* Embedded FP guard bit */
 160#define SPEFSCR_FX      0x00001000      /* Embedded FP sticky bit */
 161#define SPEFSCR_FINV    0x00000800      /* Embedded FP invalid operation */
 162#define SPEFSCR_FDBZ    0x00000400      /* Embedded FP div by zero */
 163#define SPEFSCR_FUNF    0x00000200      /* Embedded FP underflow */
 164#define SPEFSCR_FOVF    0x00000100      /* Embedded FP overflow */
 165#define SPEFSCR_FINXE   0x00000040      /* Embedded FP inexact enable */
 166#define SPEFSCR_FINVE   0x00000020      /* Embedded FP invalid op. enable */
 167#define SPEFSCR_FDBZE   0x00000010      /* Embedded FP div by zero enable */
 168#define SPEFSCR_FUNFE   0x00000008      /* Embedded FP underflow enable */
 169#define SPEFSCR_FOVFE   0x00000004      /* Embedded FP overflow enable */
 170#define SPEFSCR_FRMC    0x00000003      /* Embedded FP rounding mode control */
 171
 172/* Special Purpose Registers (SPRNs)*/
 173#define SPRN_CTR        0x009   /* Count Register */
 174#define SPRN_DSCR       0x11
 175#define SPRN_CTRLF      0x088
 176#define SPRN_CTRLT      0x098
 177#define   CTRL_CT       0xc0000000      /* current thread */
 178#define   CTRL_CT0      0x80000000      /* thread 0 */
 179#define   CTRL_CT1      0x40000000      /* thread 1 */
 180#define   CTRL_TE       0x00c00000      /* thread enable */
 181#define   CTRL_RUNLATCH 0x1
 182#define SPRN_DABR       0x3F5   /* Data Address Breakpoint Register */
 183#define   DABR_TRANSLATION      (1UL << 2)
 184#define   DABR_DATA_WRITE       (1UL << 1)
 185#define   DABR_DATA_READ        (1UL << 0)
 186#define SPRN_DABR2      0x13D   /* e300 */
 187#define SPRN_DABRX      0x3F7   /* Data Address Breakpoint Register Extension */
 188#define   DABRX_USER    (1UL << 0)
 189#define   DABRX_KERNEL  (1UL << 1)
 190#define SPRN_DAR        0x013   /* Data Address Register */
 191#define SPRN_DBCR       0x136   /* e300 Data Breakpoint Control Reg */
 192#define SPRN_DSISR      0x012   /* Data Storage Interrupt Status Register */
 193#define   DSISR_NOHPTE          0x40000000      /* no translation found */
 194#define   DSISR_PROTFAULT       0x08000000      /* protection fault */
 195#define   DSISR_ISSTORE         0x02000000      /* access was a store */
 196#define   DSISR_DABRMATCH       0x00400000      /* hit data breakpoint */
 197#define   DSISR_NOSEGMENT       0x00200000      /* STAB/SLB miss */
 198#define SPRN_TBRL       0x10C   /* Time Base Read Lower Register (user, R/O) */
 199#define SPRN_TBRU       0x10D   /* Time Base Read Upper Register (user, R/O) */
 200#define SPRN_TBWL       0x11C   /* Time Base Lower Register (super, R/W) */
 201#define SPRN_TBWU       0x11D   /* Time Base Upper Register (super, R/W) */
 202#define SPRN_SPURR      0x134   /* Scaled PURR */
 203#define SPRN_HIOR       0x137   /* 970 Hypervisor interrupt offset */
 204#define SPRN_LPCR       0x13E   /* LPAR Control Register */
 205#define SPRN_DBAT0L     0x219   /* Data BAT 0 Lower Register */
 206#define SPRN_DBAT0U     0x218   /* Data BAT 0 Upper Register */
 207#define SPRN_DBAT1L     0x21B   /* Data BAT 1 Lower Register */
 208#define SPRN_DBAT1U     0x21A   /* Data BAT 1 Upper Register */
 209#define SPRN_DBAT2L     0x21D   /* Data BAT 2 Lower Register */
 210#define SPRN_DBAT2U     0x21C   /* Data BAT 2 Upper Register */
 211#define SPRN_DBAT3L     0x21F   /* Data BAT 3 Lower Register */
 212#define SPRN_DBAT3U     0x21E   /* Data BAT 3 Upper Register */
 213#define SPRN_DBAT4L     0x239   /* Data BAT 4 Lower Register */
 214#define SPRN_DBAT4U     0x238   /* Data BAT 4 Upper Register */
 215#define SPRN_DBAT5L     0x23B   /* Data BAT 5 Lower Register */
 216#define SPRN_DBAT5U     0x23A   /* Data BAT 5 Upper Register */
 217#define SPRN_DBAT6L     0x23D   /* Data BAT 6 Lower Register */
 218#define SPRN_DBAT6U     0x23C   /* Data BAT 6 Upper Register */
 219#define SPRN_DBAT7L     0x23F   /* Data BAT 7 Lower Register */
 220#define SPRN_DBAT7U     0x23E   /* Data BAT 7 Upper Register */
 221
 222#define SPRN_DEC        0x016           /* Decrement Register */
 223#define SPRN_DER        0x095           /* Debug Enable Regsiter */
 224#define DER_RSTE        0x40000000      /* Reset Interrupt */
 225#define DER_CHSTPE      0x20000000      /* Check Stop */
 226#define DER_MCIE        0x10000000      /* Machine Check Interrupt */
 227#define DER_EXTIE       0x02000000      /* External Interrupt */
 228#define DER_ALIE        0x01000000      /* Alignment Interrupt */
 229#define DER_PRIE        0x00800000      /* Program Interrupt */
 230#define DER_FPUVIE      0x00400000      /* FP Unavailable Interrupt */
 231#define DER_DECIE       0x00200000      /* Decrementer Interrupt */
 232#define DER_SYSIE       0x00040000      /* System Call Interrupt */
 233#define DER_TRE         0x00020000      /* Trace Interrupt */
 234#define DER_SEIE        0x00004000      /* FP SW Emulation Interrupt */
 235#define DER_ITLBMSE     0x00002000      /* Imp. Spec. Instruction TLB Miss */
 236#define DER_ITLBERE     0x00001000      /* Imp. Spec. Instruction TLB Error */
 237#define DER_DTLBMSE     0x00000800      /* Imp. Spec. Data TLB Miss */
 238#define DER_DTLBERE     0x00000400      /* Imp. Spec. Data TLB Error */
 239#define DER_LBRKE       0x00000008      /* Load/Store Breakpoint Interrupt */
 240#define DER_IBRKE       0x00000004      /* Instruction Breakpoint Interrupt */
 241#define DER_EBRKE       0x00000002      /* External Breakpoint Interrupt */
 242#define DER_DPIE        0x00000001      /* Dev. Port Nonmaskable Request */
 243#define SPRN_DMISS      0x3D0           /* Data TLB Miss Register */
 244#define SPRN_EAR        0x11A           /* External Address Register */
 245#define SPRN_HASH1      0x3D2           /* Primary Hash Address Register */
 246#define SPRN_HASH2      0x3D3           /* Secondary Hash Address Resgister */
 247#define SPRN_HID0       0x3F0           /* Hardware Implementation Register 0 */
 248#define HID0_EMCP       (1<<31)         /* Enable Machine Check pin */
 249#define HID0_EBA        (1<<29)         /* Enable Bus Address Parity */
 250#define HID0_EBD        (1<<28)         /* Enable Bus Data Parity */
 251#define HID0_SBCLK      (1<<27)
 252#define HID0_EICE       (1<<26)
 253#define HID0_TBEN       (1<<26)         /* Timebase enable - 745x */
 254#define HID0_ECLK       (1<<25)
 255#define HID0_PAR        (1<<24)
 256#define HID0_STEN       (1<<24)         /* Software table search enable - 745x */
 257#define HID0_HIGH_BAT   (1<<23)         /* Enable high BATs - 7455 */
 258#define HID0_DOZE       (1<<23)
 259#define HID0_NAP        (1<<22)
 260#define HID0_SLEEP      (1<<21)
 261#define HID0_DPM        (1<<20)
 262#define HID0_BHTCLR     (1<<18)         /* Clear branch history table - 7450 */
 263#define HID0_XAEN       (1<<17)         /* Extended addressing enable - 7450 */
 264#define HID0_NHR        (1<<16)         /* Not hard reset (software bit-7450)*/
 265#define HID0_ICE        (1<<15)         /* Instruction Cache Enable */
 266#define HID0_DCE        (1<<14)         /* Data Cache Enable */
 267#define HID0_ILOCK      (1<<13)         /* Instruction Cache Lock */
 268#define HID0_DLOCK      (1<<12)         /* Data Cache Lock */
 269#define HID0_ICFI       (1<<11)         /* Instr. Cache Flash Invalidate */
 270#define HID0_DCI        (1<<10)         /* Data Cache Invalidate */
 271#define HID0_SPD        (1<<9)          /* Speculative disable */
 272#define HID0_DAPUEN     (1<<8)          /* Debug APU enable */
 273#define HID0_SGE        (1<<7)          /* Store Gathering Enable */
 274#define HID0_SIED       (1<<7)          /* Serial Instr. Execution [Disable] */
 275#define HID0_DCFA       (1<<6)          /* Data Cache Flush Assist */
 276#define HID0_LRSTK      (1<<4)          /* Link register stack - 745x */
 277#define HID0_BTIC       (1<<5)          /* Branch Target Instr Cache Enable */
 278#define HID0_ABE        (1<<3)          /* Address Broadcast Enable */
 279#define HID0_FOLD       (1<<3)          /* Branch Folding enable - 745x */
 280#define HID0_BHTE       (1<<2)          /* Branch History Table Enable */
 281#define HID0_BTCD       (1<<1)          /* Branch target cache disable */
 282#define HID0_NOPDST     (1<<1)          /* No-op dst, dstt, etc. instr. */
 283#define HID0_NOPTI      (1<<0)          /* No-op dcbt and dcbst instr. */
 284
 285#define SPRN_HID1       0x3F1           /* Hardware Implementation Register 1 */
 286#define HID1_EMCP       (1<<31)         /* 7450 Machine Check Pin Enable */
 287#define HID1_DFS        (1<<22)         /* 7447A Dynamic Frequency Scaling */
 288#define HID1_PC0        (1<<16)         /* 7450 PLL_CFG[0] */
 289#define HID1_PC1        (1<<15)         /* 7450 PLL_CFG[1] */
 290#define HID1_PC2        (1<<14)         /* 7450 PLL_CFG[2] */
 291#define HID1_PC3        (1<<13)         /* 7450 PLL_CFG[3] */
 292#define HID1_SYNCBE     (1<<11)         /* 7450 ABE for sync, eieio */
 293#define HID1_ABE        (1<<10)         /* 7450 Address Broadcast Enable */
 294#define HID1_PS         (1<<16)         /* 750FX PLL selection */
 295#define SPRN_HID2       0x3F8           /* Hardware Implementation Register 2 */
 296#define SPRN_IABR       0x3F2   /* Instruction Address Breakpoint Register */
 297#define SPRN_IABR2      0x3FA           /* 83xx */
 298#define SPRN_IBCR       0x135           /* 83xx Insn Breakpoint Control Reg */
 299#define SPRN_HID4       0x3F4           /* 970 HID4 */
 300#define SPRN_HID5       0x3F6           /* 970 HID5 */
 301#define SPRN_HID6       0x3F9   /* BE HID 6 */
 302#define   HID6_LB       (0x0F<<12) /* Concurrent Large Page Modes */
 303#define   HID6_DLP      (1<<20) /* Disable all large page modes (4K only) */
 304#define SPRN_TSC_CELL   0x399   /* Thread switch control on Cell */
 305#define   TSC_CELL_DEC_ENABLE_0 0x400000 /* Decrementer Interrupt */
 306#define   TSC_CELL_DEC_ENABLE_1 0x200000 /* Decrementer Interrupt */
 307#define   TSC_CELL_EE_ENABLE    0x100000 /* External Interrupt */
 308#define   TSC_CELL_EE_BOOST     0x080000 /* External Interrupt Boost */
 309#define SPRN_TSC        0x3FD   /* Thread switch control on others */
 310#define SPRN_TST        0x3FC   /* Thread switch timeout on others */
 311#if !defined(SPRN_IAC1) && !defined(SPRN_IAC2)
 312#define SPRN_IAC1       0x3F4           /* Instruction Address Compare 1 */
 313#define SPRN_IAC2       0x3F5           /* Instruction Address Compare 2 */
 314#endif
 315#define SPRN_IBAT0L     0x211           /* Instruction BAT 0 Lower Register */
 316#define SPRN_IBAT0U     0x210           /* Instruction BAT 0 Upper Register */
 317#define SPRN_IBAT1L     0x213           /* Instruction BAT 1 Lower Register */
 318#define SPRN_IBAT1U     0x212           /* Instruction BAT 1 Upper Register */
 319#define SPRN_IBAT2L     0x215           /* Instruction BAT 2 Lower Register */
 320#define SPRN_IBAT2U     0x214           /* Instruction BAT 2 Upper Register */
 321#define SPRN_IBAT3L     0x217           /* Instruction BAT 3 Lower Register */
 322#define SPRN_IBAT3U     0x216           /* Instruction BAT 3 Upper Register */
 323#define SPRN_IBAT4L     0x231           /* Instruction BAT 4 Lower Register */
 324#define SPRN_IBAT4U     0x230           /* Instruction BAT 4 Upper Register */
 325#define SPRN_IBAT5L     0x233           /* Instruction BAT 5 Lower Register */
 326#define SPRN_IBAT5U     0x232           /* Instruction BAT 5 Upper Register */
 327#define SPRN_IBAT6L     0x235           /* Instruction BAT 6 Lower Register */
 328#define SPRN_IBAT6U     0x234           /* Instruction BAT 6 Upper Register */
 329#define SPRN_IBAT7L     0x237           /* Instruction BAT 7 Lower Register */
 330#define SPRN_IBAT7U     0x236           /* Instruction BAT 7 Upper Register */
 331#define SPRN_ICMP       0x3D5           /* Instruction TLB Compare Register */
 332#define SPRN_ICTC       0x3FB   /* Instruction Cache Throttling Control Reg */
 333#define SPRN_ICTRL      0x3F3   /* 1011 7450 icache and interrupt ctrl */
 334#define ICTRL_EICE      0x08000000      /* enable icache parity errs */
 335#define ICTRL_EDC       0x04000000      /* enable dcache parity errs */
 336#define ICTRL_EICP      0x00000100      /* enable icache par. check */
 337#define SPRN_IMISS      0x3D4           /* Instruction TLB Miss Register */
 338#define SPRN_IMMR       0x27E           /* Internal Memory Map Register */
 339#define SPRN_L2CR       0x3F9           /* Level 2 Cache Control Regsiter */
 340#define SPRN_L2CR2      0x3f8
 341#define L2CR_L2E                0x80000000      /* L2 enable */
 342#define L2CR_L2PE               0x40000000      /* L2 parity enable */
 343#define L2CR_L2SIZ_MASK         0x30000000      /* L2 size mask */
 344#define L2CR_L2SIZ_256KB        0x10000000      /* L2 size 256KB */
 345#define L2CR_L2SIZ_512KB        0x20000000      /* L2 size 512KB */
 346#define L2CR_L2SIZ_1MB          0x30000000      /* L2 size 1MB */
 347#define L2CR_L2CLK_MASK         0x0e000000      /* L2 clock mask */
 348#define L2CR_L2CLK_DISABLED     0x00000000      /* L2 clock disabled */
 349#define L2CR_L2CLK_DIV1         0x02000000      /* L2 clock / 1 */
 350#define L2CR_L2CLK_DIV1_5       0x04000000      /* L2 clock / 1.5 */
 351#define L2CR_L2CLK_DIV2         0x08000000      /* L2 clock / 2 */
 352#define L2CR_L2CLK_DIV2_5       0x0a000000      /* L2 clock / 2.5 */
 353#define L2CR_L2CLK_DIV3         0x0c000000      /* L2 clock / 3 */
 354#define L2CR_L2RAM_MASK         0x01800000      /* L2 RAM type mask */
 355#define L2CR_L2RAM_FLOW         0x00000000      /* L2 RAM flow through */
 356#define L2CR_L2RAM_PIPE         0x01000000      /* L2 RAM pipelined */
 357#define L2CR_L2RAM_PIPE_LW      0x01800000      /* L2 RAM pipelined latewr */
 358#define L2CR_L2DO               0x00400000      /* L2 data only */
 359#define L2CR_L2I                0x00200000      /* L2 global invalidate */
 360#define L2CR_L2CTL              0x00100000      /* L2 RAM control */
 361#define L2CR_L2WT               0x00080000      /* L2 write-through */
 362#define L2CR_L2TS               0x00040000      /* L2 test support */
 363#define L2CR_L2OH_MASK          0x00030000      /* L2 output hold mask */
 364#define L2CR_L2OH_0_5           0x00000000      /* L2 output hold 0.5 ns */
 365#define L2CR_L2OH_1_0           0x00010000      /* L2 output hold 1.0 ns */
 366#define L2CR_L2SL               0x00008000      /* L2 DLL slow */
 367#define L2CR_L2DF               0x00004000      /* L2 differential clock */
 368#define L2CR_L2BYP              0x00002000      /* L2 DLL bypass */
 369#define L2CR_L2IP               0x00000001      /* L2 GI in progress */
 370#define L2CR_L2IO_745x          0x00100000      /* L2 instr. only (745x) */
 371#define L2CR_L2DO_745x          0x00010000      /* L2 data only (745x) */
 372#define L2CR_L2REP_745x         0x00001000      /* L2 repl. algorithm (745x) */
 373#define L2CR_L2HWF_745x         0x00000800      /* L2 hardware flush (745x) */
 374#define SPRN_L3CR               0x3FA   /* Level 3 Cache Control Regsiter */
 375#define L3CR_L3E                0x80000000      /* L3 enable */
 376#define L3CR_L3PE               0x40000000      /* L3 data parity enable */
 377#define L3CR_L3APE              0x20000000      /* L3 addr parity enable */
 378#define L3CR_L3SIZ              0x10000000      /* L3 size */
 379#define L3CR_L3CLKEN            0x08000000      /* L3 clock enable */
 380#define L3CR_L3RES              0x04000000      /* L3 special reserved bit */
 381#define L3CR_L3CLKDIV           0x03800000      /* L3 clock divisor */
 382#define L3CR_L3IO               0x00400000      /* L3 instruction only */
 383#define L3CR_L3SPO              0x00040000      /* L3 sample point override */
 384#define L3CR_L3CKSP             0x00030000      /* L3 clock sample point */
 385#define L3CR_L3PSP              0x0000e000      /* L3 P-clock sample point */
 386#define L3CR_L3REP              0x00001000      /* L3 replacement algorithm */
 387#define L3CR_L3HWF              0x00000800      /* L3 hardware flush */
 388#define L3CR_L3I                0x00000400      /* L3 global invalidate */
 389#define L3CR_L3RT               0x00000300      /* L3 SRAM type */
 390#define L3CR_L3NIRCA            0x00000080      /* L3 non-integer ratio clock adj. */
 391#define L3CR_L3DO               0x00000040      /* L3 data only mode */
 392#define L3CR_PMEN               0x00000004      /* L3 private memory enable */
 393#define L3CR_PMSIZ              0x00000001      /* L3 private memory size */
 394
 395#define SPRN_MSSCR0     0x3f6   /* Memory Subsystem Control Register 0 */
 396#define SPRN_MSSSR0     0x3f7   /* Memory Subsystem Status Register 1 */
 397#define SPRN_LDSTCR     0x3f8   /* Load/Store control register */
 398#define SPRN_LDSTDB     0x3f4   /* */
 399#define SPRN_LR         0x008   /* Link Register */
 400#ifndef SPRN_PIR
 401#define SPRN_PIR        0x3FF   /* Processor Identification Register */
 402#endif
 403#define SPRN_PTEHI      0x3D5   /* 981 7450 PTE HI word (S/W TLB load) */
 404#define SPRN_PTELO      0x3D6   /* 982 7450 PTE LO word (S/W TLB load) */
 405#define SPRN_PURR       0x135   /* Processor Utilization of Resources Reg */
 406#define SPRN_PVR        0x11F   /* Processor Version Register */
 407#define SPRN_RPA        0x3D6   /* Required Physical Address Register */
 408#define SPRN_SDA        0x3BF   /* Sampled Data Address Register */
 409#define SPRN_SDR1       0x019   /* MMU Hash Base Register */
 410#define SPRN_ASR        0x118   /* Address Space Register */
 411#define SPRN_SIA        0x3BB   /* Sampled Instruction Address Register */
 412#define SPRN_SPRG0      0x110   /* Special Purpose Register General 0 */
 413#define SPRN_SPRG1      0x111   /* Special Purpose Register General 1 */
 414#define SPRN_SPRG2      0x112   /* Special Purpose Register General 2 */
 415#define SPRN_SPRG3      0x113   /* Special Purpose Register General 3 */
 416#define SPRN_SPRG4      0x114   /* Special Purpose Register General 4 */
 417#define SPRN_SPRG5      0x115   /* Special Purpose Register General 5 */
 418#define SPRN_SPRG6      0x116   /* Special Purpose Register General 6 */
 419#define SPRN_SPRG7      0x117   /* Special Purpose Register General 7 */
 420#define SPRN_SRR0       0x01A   /* Save/Restore Register 0 */
 421#define SPRN_SRR1       0x01B   /* Save/Restore Register 1 */
 422#define   SRR1_WAKEMASK         0x00380000 /* reason for wakeup */
 423#define   SRR1_WAKERESET        0x00380000 /* System reset */
 424#define   SRR1_WAKESYSERR       0x00300000 /* System error */
 425#define   SRR1_WAKEEE           0x00200000 /* External interrupt */
 426#define   SRR1_WAKEMT           0x00280000 /* mtctrl */
 427#define   SRR1_WAKEDEC          0x00180000 /* Decrementer interrupt */
 428#define   SRR1_WAKETHERM        0x00100000 /* Thermal management interrupt */
 429#define SPRN_HSRR0      0x13A   /* Save/Restore Register 0 */
 430#define SPRN_HSRR1      0x13B   /* Save/Restore Register 1 */
 431
 432#define SPRN_TBCTL      0x35f   /* PA6T Timebase control register */
 433#define   TBCTL_FREEZE          0x0000000000000000ull /* Freeze all tbs */
 434#define   TBCTL_RESTART         0x0000000100000000ull /* Restart all tbs */
 435#define   TBCTL_UPDATE_UPPER    0x0000000200000000ull /* Set upper 32 bits */
 436#define   TBCTL_UPDATE_LOWER    0x0000000300000000ull /* Set lower 32 bits */
 437
 438#ifndef SPRN_SVR
 439#define SPRN_SVR        0x11E   /* System Version Register */
 440#endif
 441#define SPRN_THRM1      0x3FC           /* Thermal Management Register 1 */
 442/* these bits were defined in inverted endian sense originally, ugh, confusing */
 443#define THRM1_TIN       (1 << 31)
 444#define THRM1_TIV       (1 << 30)
 445#define THRM1_THRES(x)  ((x&0x7f)<<23)
 446#define THRM3_SITV(x)   ((x&0x3fff)<<1)
 447#define THRM1_TID       (1<<2)
 448#define THRM1_TIE       (1<<1)
 449#define THRM1_V         (1<<0)
 450#define SPRN_THRM2      0x3FD           /* Thermal Management Register 2 */
 451#define SPRN_THRM3      0x3FE           /* Thermal Management Register 3 */
 452#define THRM3_E         (1<<0)
 453#define SPRN_TLBMISS    0x3D4           /* 980 7450 TLB Miss Register */
 454#define SPRN_UMMCR0     0x3A8   /* User Monitor Mode Control Register 0 */
 455#define SPRN_UMMCR1     0x3AC   /* User Monitor Mode Control Register 0 */
 456#define SPRN_UPMC1      0x3A9   /* User Performance Counter Register 1 */
 457#define SPRN_UPMC2      0x3AA   /* User Performance Counter Register 2 */
 458#define SPRN_UPMC3      0x3AD   /* User Performance Counter Register 3 */
 459#define SPRN_UPMC4      0x3AE   /* User Performance Counter Register 4 */
 460#define SPRN_USIA       0x3AB   /* User Sampled Instruction Address Register */
 461#define SPRN_VRSAVE     0x100   /* Vector Register Save Register */
 462#define SPRN_XER        0x001   /* Fixed Point Exception Register */
 463
 464#define SPRN_SCOMC      0x114   /* SCOM Access Control */
 465#define SPRN_SCOMD      0x115   /* SCOM Access DATA */
 466
 467/* Performance monitor SPRs */
 468#ifdef CONFIG_PPC64
 469#define SPRN_MMCR0      795
 470#define   MMCR0_FC      0x80000000UL /* freeze counters */
 471#define   MMCR0_FCS     0x40000000UL /* freeze in supervisor state */
 472#define   MMCR0_KERNEL_DISABLE MMCR0_FCS
 473#define   MMCR0_FCP     0x20000000UL /* freeze in problem state */
 474#define   MMCR0_PROBLEM_DISABLE MMCR0_FCP
 475#define   MMCR0_FCM1    0x10000000UL /* freeze counters while MSR mark = 1 */
 476#define   MMCR0_FCM0    0x08000000UL /* freeze counters while MSR mark = 0 */
 477#define   MMCR0_PMXE    0x04000000UL /* performance monitor exception enable */
 478#define   MMCR0_FCECE   0x02000000UL /* freeze ctrs on enabled cond or event */
 479#define   MMCR0_TBEE    0x00400000UL /* time base exception enable */
 480#define   MMCR0_PMC1CE  0x00008000UL /* PMC1 count enable*/
 481#define   MMCR0_PMCjCE  0x00004000UL /* PMCj count enable*/
 482#define   MMCR0_TRIGGER 0x00002000UL /* TRIGGER enable */
 483#define   MMCR0_PMAO    0x00000080UL /* performance monitor alert has occurred, set to 0 after handling exception */
 484#define   MMCR0_SHRFC   0x00000040UL /* SHRre freeze conditions between threads */
 485#define   MMCR0_FCTI    0x00000008UL /* freeze counters in tags inactive mode */
 486#define   MMCR0_FCTA    0x00000004UL /* freeze counters in tags active mode */
 487#define   MMCR0_FCWAIT  0x00000002UL /* freeze counter in WAIT state */
 488#define   MMCR0_FCHV    0x00000001UL /* freeze conditions in hypervisor mode */
 489#define SPRN_MMCR1      798
 490#define SPRN_MMCRA      0x312
 491#define   MMCRA_SDSYNC  0x80000000UL /* SDAR synced with SIAR */
 492#define   MMCRA_SIHV    0x10000000UL /* state of MSR HV when SIAR set */
 493#define   MMCRA_SIPR    0x08000000UL /* state of MSR PR when SIAR set */
 494#define   MMCRA_SLOT    0x07000000UL /* SLOT bits (37-39) */
 495#define   MMCRA_SLOT_SHIFT      24
 496#define   MMCRA_SAMPLE_ENABLE 0x00000001UL /* enable sampling */
 497#define   POWER6_MMCRA_SDSYNC 0x0000080000000000ULL     /* SDAR/SIAR synced */
 498#define   POWER6_MMCRA_SIHV   0x0000040000000000ULL
 499#define   POWER6_MMCRA_SIPR   0x0000020000000000ULL
 500#define   POWER6_MMCRA_THRM     0x00000020UL
 501#define   POWER6_MMCRA_OTHER    0x0000000EUL
 502#define SPRN_PMC1       787
 503#define SPRN_PMC2       788
 504#define SPRN_PMC3       789
 505#define SPRN_PMC4       790
 506#define SPRN_PMC5       791
 507#define SPRN_PMC6       792
 508#define SPRN_PMC7       793
 509#define SPRN_PMC8       794
 510#define SPRN_SIAR       780
 511#define SPRN_SDAR       781
 512
 513#define SPRN_PA6T_MMCR0 795
 514#define   PA6T_MMCR0_EN0        0x0000000000000001UL
 515#define   PA6T_MMCR0_EN1        0x0000000000000002UL
 516#define   PA6T_MMCR0_EN2        0x0000000000000004UL
 517#define   PA6T_MMCR0_EN3        0x0000000000000008UL
 518#define   PA6T_MMCR0_EN4        0x0000000000000010UL
 519#define   PA6T_MMCR0_EN5        0x0000000000000020UL
 520#define   PA6T_MMCR0_SUPEN      0x0000000000000040UL
 521#define   PA6T_MMCR0_PREN       0x0000000000000080UL
 522#define   PA6T_MMCR0_HYPEN      0x0000000000000100UL
 523#define   PA6T_MMCR0_FCM0       0x0000000000000200UL
 524#define   PA6T_MMCR0_FCM1       0x0000000000000400UL
 525#define   PA6T_MMCR0_INTGEN     0x0000000000000800UL
 526#define   PA6T_MMCR0_INTEN0     0x0000000000001000UL
 527#define   PA6T_MMCR0_INTEN1     0x0000000000002000UL
 528#define   PA6T_MMCR0_INTEN2     0x0000000000004000UL
 529#define   PA6T_MMCR0_INTEN3     0x0000000000008000UL
 530#define   PA6T_MMCR0_INTEN4     0x0000000000010000UL
 531#define   PA6T_MMCR0_INTEN5     0x0000000000020000UL
 532#define   PA6T_MMCR0_DISCNT     0x0000000000040000UL
 533#define   PA6T_MMCR0_UOP        0x0000000000080000UL
 534#define   PA6T_MMCR0_TRG        0x0000000000100000UL
 535#define   PA6T_MMCR0_TRGEN      0x0000000000200000UL
 536#define   PA6T_MMCR0_TRGREG     0x0000000001600000UL
 537#define   PA6T_MMCR0_SIARLOG    0x0000000002000000UL
 538#define   PA6T_MMCR0_SDARLOG    0x0000000004000000UL
 539#define   PA6T_MMCR0_PROEN      0x0000000008000000UL
 540#define   PA6T_MMCR0_PROLOG     0x0000000010000000UL
 541#define   PA6T_MMCR0_DAMEN2     0x0000000020000000UL
 542#define   PA6T_MMCR0_DAMEN3     0x0000000040000000UL
 543#define   PA6T_MMCR0_DAMEN4     0x0000000080000000UL
 544#define   PA6T_MMCR0_DAMEN5     0x0000000100000000UL
 545#define   PA6T_MMCR0_DAMSEL2    0x0000000200000000UL
 546#define   PA6T_MMCR0_DAMSEL3    0x0000000400000000UL
 547#define   PA6T_MMCR0_DAMSEL4    0x0000000800000000UL
 548#define   PA6T_MMCR0_DAMSEL5    0x0000001000000000UL
 549#define   PA6T_MMCR0_HANDDIS    0x0000002000000000UL
 550#define   PA6T_MMCR0_PCTEN      0x0000004000000000UL
 551#define   PA6T_MMCR0_SOCEN      0x0000008000000000UL
 552#define   PA6T_MMCR0_SOCMOD     0x0000010000000000UL
 553
 554#define SPRN_PA6T_MMCR1 798
 555#define   PA6T_MMCR1_ES2        0x00000000000000ffUL
 556#define   PA6T_MMCR1_ES3        0x000000000000ff00UL
 557#define   PA6T_MMCR1_ES4        0x0000000000ff0000UL
 558#define   PA6T_MMCR1_ES5        0x00000000ff000000UL
 559
 560#define SPRN_PA6T_UPMC0 771     /* User PerfMon Counter 0 */
 561#define SPRN_PA6T_UPMC1 772     /* ... */
 562#define SPRN_PA6T_UPMC2 773
 563#define SPRN_PA6T_UPMC3 774
 564#define SPRN_PA6T_UPMC4 775
 565#define SPRN_PA6T_UPMC5 776
 566#define SPRN_PA6T_UMMCR0 779    /* User Monitor Mode Control Register 0 */
 567#define SPRN_PA6T_SIAR  780     /* Sampled Instruction Address */
 568#define SPRN_PA6T_UMMCR1 782    /* User Monitor Mode Control Register 1 */
 569#define SPRN_PA6T_SIER  785     /* Sampled Instruction Event Register */
 570#define SPRN_PA6T_PMC0  787
 571#define SPRN_PA6T_PMC1  788
 572#define SPRN_PA6T_PMC2  789
 573#define SPRN_PA6T_PMC3  790
 574#define SPRN_PA6T_PMC4  791
 575#define SPRN_PA6T_PMC5  792
 576#define SPRN_PA6T_TSR0  793     /* Timestamp Register 0 */
 577#define SPRN_PA6T_TSR1  794     /* Timestamp Register 1 */
 578#define SPRN_PA6T_TSR2  799     /* Timestamp Register 2 */
 579#define SPRN_PA6T_TSR3  784     /* Timestamp Register 3 */
 580
 581#define SPRN_PA6T_IER   981     /* Icache Error Register */
 582#define SPRN_PA6T_DER   982     /* Dcache Error Register */
 583#define SPRN_PA6T_BER   862     /* BIU Error Address Register */
 584#define SPRN_PA6T_MER   849     /* MMU Error Register */
 585
 586#define SPRN_PA6T_IMA0  880     /* Instruction Match Array 0 */
 587#define SPRN_PA6T_IMA1  881     /* ... */
 588#define SPRN_PA6T_IMA2  882
 589#define SPRN_PA6T_IMA3  883
 590#define SPRN_PA6T_IMA4  884
 591#define SPRN_PA6T_IMA5  885
 592#define SPRN_PA6T_IMA6  886
 593#define SPRN_PA6T_IMA7  887
 594#define SPRN_PA6T_IMA8  888
 595#define SPRN_PA6T_IMA9  889
 596#define SPRN_PA6T_BTCR  978     /* Breakpoint and Tagging Control Register */
 597#define SPRN_PA6T_IMAAT 979     /* Instruction Match Array Action Table */
 598#define SPRN_PA6T_PCCR  1019    /* Power Counter Control Register */
 599#define SPRN_BKMK       1020    /* Cell Bookmark Register */
 600#define SPRN_PA6T_RPCCR 1021    /* Retire PC Trace Control Register */
 601
 602
 603#else /* 32-bit */
 604#define SPRN_MMCR0      952     /* Monitor Mode Control Register 0 */
 605#define   MMCR0_FC      0x80000000UL /* freeze counters */
 606#define   MMCR0_FCS     0x40000000UL /* freeze in supervisor state */
 607#define   MMCR0_FCP     0x20000000UL /* freeze in problem state */
 608#define   MMCR0_FCM1    0x10000000UL /* freeze counters while MSR mark = 1 */
 609#define   MMCR0_FCM0    0x08000000UL /* freeze counters while MSR mark = 0 */
 610#define   MMCR0_PMXE    0x04000000UL /* performance monitor exception enable */
 611#define   MMCR0_FCECE   0x02000000UL /* freeze ctrs on enabled cond or event */
 612#define   MMCR0_TBEE    0x00400000UL /* time base exception enable */
 613#define   MMCR0_PMC1CE  0x00008000UL /* PMC1 count enable*/
 614#define   MMCR0_PMCnCE  0x00004000UL /* count enable for all but PMC 1*/
 615#define   MMCR0_TRIGGER 0x00002000UL /* TRIGGER enable */
 616#define   MMCR0_PMC1SEL 0x00001fc0UL /* PMC 1 Event */
 617#define   MMCR0_PMC2SEL 0x0000003fUL /* PMC 2 Event */
 618
 619#define SPRN_MMCR1      956
 620#define   MMCR1_PMC3SEL 0xf8000000UL /* PMC 3 Event */
 621#define   MMCR1_PMC4SEL 0x07c00000UL /* PMC 4 Event */
 622#define   MMCR1_PMC5SEL 0x003e0000UL /* PMC 5 Event */
 623#define   MMCR1_PMC6SEL 0x0001f800UL /* PMC 6 Event */
 624#define SPRN_MMCR2      944
 625#define SPRN_PMC1       953     /* Performance Counter Register 1 */
 626#define SPRN_PMC2       954     /* Performance Counter Register 2 */
 627#define SPRN_PMC3       957     /* Performance Counter Register 3 */
 628#define SPRN_PMC4       958     /* Performance Counter Register 4 */
 629#define SPRN_PMC5       945     /* Performance Counter Register 5 */
 630#define SPRN_PMC6       946     /* Performance Counter Register 6 */
 631
 632#define SPRN_SIAR       955     /* Sampled Instruction Address Register */
 633
 634/* Bit definitions for MMCR0 and PMC1 / PMC2. */
 635#define MMCR0_PMC1_CYCLES       (1 << 7)
 636#define MMCR0_PMC1_ICACHEMISS   (5 << 7)
 637#define MMCR0_PMC1_DTLB         (6 << 7)
 638#define MMCR0_PMC2_DCACHEMISS   0x6
 639#define MMCR0_PMC2_CYCLES       0x1
 640#define MMCR0_PMC2_ITLB         0x7
 641#define MMCR0_PMC2_LOADMISSTIME 0x5
 642#endif
 643
 644/*
 645 * SPRG usage:
 646 *
 647 * All 64-bit:
 648 *      - SPRG1 stores PACA pointer
 649 *
 650 * 64-bit server:
 651 *      - SPRG0 unused (reserved for HV on Power4)
 652 *      - SPRG2 scratch for exception vectors
 653 *      - SPRG3 unused (user visible)
 654 *
 655 * 64-bit embedded
 656 *      - SPRG0 generic exception scratch
 657 *      - SPRG2 TLB exception stack
 658 *      - SPRG3 unused (user visible)
 659 *      - SPRG4 unused (user visible)
 660 *      - SPRG6 TLB miss scratch (user visible, sorry !)
 661 *      - SPRG7 critical exception scratch
 662 *      - SPRG8 machine check exception scratch
 663 *      - SPRG9 debug exception scratch
 664 *
 665 * All 32-bit:
 666 *      - SPRG3 current thread_info pointer
 667 *        (virtual on BookE, physical on others)
 668 *
 669 * 32-bit classic:
 670 *      - SPRG0 scratch for exception vectors
 671 *      - SPRG1 scratch for exception vectors
 672 *      - SPRG2 indicator that we are in RTAS
 673 *      - SPRG4 (603 only) pseudo TLB LRU data
 674 *
 675 * 32-bit 40x:
 676 *      - SPRG0 scratch for exception vectors
 677 *      - SPRG1 scratch for exception vectors
 678 *      - SPRG2 scratch for exception vectors
 679 *      - SPRG4 scratch for exception vectors (not 403)
 680 *      - SPRG5 scratch for exception vectors (not 403)
 681 *      - SPRG6 scratch for exception vectors (not 403)
 682 *      - SPRG7 scratch for exception vectors (not 403)
 683 *
 684 * 32-bit 440 and FSL BookE:
 685 *      - SPRG0 scratch for exception vectors
 686 *      - SPRG1 scratch for exception vectors (*)
 687 *      - SPRG2 scratch for crit interrupts handler
 688 *      - SPRG4 scratch for exception vectors
 689 *      - SPRG5 scratch for exception vectors
 690 *      - SPRG6 scratch for machine check handler
 691 *      - SPRG7 scratch for exception vectors
 692 *      - SPRG9 scratch for debug vectors (e500 only)
 693 *
 694 *      Additionally, BookE separates "read" and "write"
 695 *      of those registers. That allows to use the userspace
 696 *      readable variant for reads, which can avoid a fault
 697 *      with KVM type virtualization.
 698 *
 699 *      (*) Under KVM, the host SPRG1 is used to point to
 700 *      the current VCPU data structure
 701 *
 702 * 32-bit 8xx:
 703 *      - SPRG0 scratch for exception vectors
 704 *      - SPRG1 scratch for exception vectors
 705 *      - SPRG2 apparently unused but initialized
 706 *
 707 */
 708#ifdef CONFIG_PPC64
 709#define SPRN_SPRG_PACA          SPRN_SPRG1
 710#else
 711#define SPRN_SPRG_THREAD        SPRN_SPRG3
 712#endif
 713
 714#ifdef CONFIG_PPC_BOOK3S_64
 715#define SPRN_SPRG_SCRATCH0      SPRN_SPRG2
 716#endif
 717
 718#ifdef CONFIG_PPC_BOOK3E_64
 719#define SPRN_SPRG_MC_SCRATCH    SPRN_SPRG8
 720#define SPRN_SPRG_CRIT_SCRATCH  SPRN_SPRG7
 721#define SPRN_SPRG_DBG_SCRATCH   SPRN_SPRG9
 722#define SPRN_SPRG_TLB_EXFRAME   SPRN_SPRG2
 723#define SPRN_SPRG_TLB_SCRATCH   SPRN_SPRG6
 724#define SPRN_SPRG_GEN_SCRATCH   SPRN_SPRG0
 725#endif
 726
 727#ifdef CONFIG_PPC_BOOK3S_32
 728#define SPRN_SPRG_SCRATCH0      SPRN_SPRG0
 729#define SPRN_SPRG_SCRATCH1      SPRN_SPRG1
 730#define SPRN_SPRG_RTAS          SPRN_SPRG2
 731#define SPRN_SPRG_603_LRU       SPRN_SPRG4
 732#endif
 733
 734#ifdef CONFIG_40x
 735#define SPRN_SPRG_SCRATCH0      SPRN_SPRG0
 736#define SPRN_SPRG_SCRATCH1      SPRN_SPRG1
 737#define SPRN_SPRG_SCRATCH2      SPRN_SPRG2
 738#define SPRN_SPRG_SCRATCH3      SPRN_SPRG4
 739#define SPRN_SPRG_SCRATCH4      SPRN_SPRG5
 740#define SPRN_SPRG_SCRATCH5      SPRN_SPRG6
 741#define SPRN_SPRG_SCRATCH6      SPRN_SPRG7
 742#endif
 743
 744#ifdef CONFIG_BOOKE
 745#define SPRN_SPRG_RSCRATCH0     SPRN_SPRG0
 746#define SPRN_SPRG_WSCRATCH0     SPRN_SPRG0
 747#define SPRN_SPRG_RSCRATCH1     SPRN_SPRG1
 748#define SPRN_SPRG_WSCRATCH1     SPRN_SPRG1
 749#define SPRN_SPRG_RSCRATCH_CRIT SPRN_SPRG2
 750#define SPRN_SPRG_WSCRATCH_CRIT SPRN_SPRG2
 751#define SPRN_SPRG_RSCRATCH2     SPRN_SPRG4R
 752#define SPRN_SPRG_WSCRATCH2     SPRN_SPRG4W
 753#define SPRN_SPRG_RSCRATCH3     SPRN_SPRG5R
 754#define SPRN_SPRG_WSCRATCH3     SPRN_SPRG5W
 755#define SPRN_SPRG_RSCRATCH_MC   SPRN_SPRG6R
 756#define SPRN_SPRG_WSCRATCH_MC   SPRN_SPRG6W
 757#define SPRN_SPRG_RSCRATCH4     SPRN_SPRG7R
 758#define SPRN_SPRG_WSCRATCH4     SPRN_SPRG7W
 759#ifdef CONFIG_E200
 760#define SPRN_SPRG_RSCRATCH_DBG  SPRN_SPRG6R
 761#define SPRN_SPRG_WSCRATCH_DBG  SPRN_SPRG6W
 762#else
 763#define SPRN_SPRG_RSCRATCH_DBG  SPRN_SPRG9
 764#define SPRN_SPRG_WSCRATCH_DBG  SPRN_SPRG9
 765#endif
 766#define SPRN_SPRG_RVCPU         SPRN_SPRG1
 767#define SPRN_SPRG_WVCPU         SPRN_SPRG1
 768#endif
 769
 770#ifdef CONFIG_8xx
 771#define SPRN_SPRG_SCRATCH0      SPRN_SPRG0
 772#define SPRN_SPRG_SCRATCH1      SPRN_SPRG1
 773#endif
 774
 775/*
 776 * An mtfsf instruction with the L bit set. On CPUs that support this a
 777 * full 64bits of FPSCR is restored and on other CPUs the L bit is ignored.
 778 *
 779 * Until binutils gets the new form of mtfsf, hardwire the instruction.
 780 */
 781#ifdef CONFIG_PPC64
 782#define MTFSF_L(REG) \
 783        .long (0xfc00058e | ((0xff) << 17) | ((REG) << 11) | (1 << 25))
 784#else
 785#define MTFSF_L(REG)    mtfsf   0xff, (REG)
 786#endif
 787
 788/* Processor Version Register (PVR) field extraction */
 789
 790#define PVR_VER(pvr)    (((pvr) >>  16) & 0xFFFF)       /* Version field */
 791#define PVR_REV(pvr)    (((pvr) >>   0) & 0xFFFF)       /* Revison field */
 792
 793#define __is_processor(pv)      (PVR_VER(mfspr(SPRN_PVR)) == (pv))
 794
 795/*
 796 * IBM has further subdivided the standard PowerPC 16-bit version and
 797 * revision subfields of the PVR for the PowerPC 403s into the following:
 798 */
 799
 800#define PVR_FAM(pvr)    (((pvr) >> 20) & 0xFFF) /* Family field */
 801#define PVR_MEM(pvr)    (((pvr) >> 16) & 0xF)   /* Member field */
 802#define PVR_CORE(pvr)   (((pvr) >> 12) & 0xF)   /* Core field */
 803#define PVR_CFG(pvr)    (((pvr) >>  8) & 0xF)   /* Configuration field */
 804#define PVR_MAJ(pvr)    (((pvr) >>  4) & 0xF)   /* Major revision field */
 805#define PVR_MIN(pvr)    (((pvr) >>  0) & 0xF)   /* Minor revision field */
 806
 807/* Processor Version Numbers */
 808
 809#define PVR_403GA       0x00200000
 810#define PVR_403GB       0x00200100
 811#define PVR_403GC       0x00200200
 812#define PVR_403GCX      0x00201400
 813#define PVR_405GP       0x40110000
 814#define PVR_STB03XXX    0x40310000
 815#define PVR_NP405H      0x41410000
 816#define PVR_NP405L      0x41610000
 817#define PVR_601         0x00010000
 818#define PVR_602         0x00050000
 819#define PVR_603         0x00030000
 820#define PVR_603e        0x00060000
 821#define PVR_603ev       0x00070000
 822#define PVR_603r        0x00071000
 823#define PVR_604         0x00040000
 824#define PVR_604e        0x00090000
 825#define PVR_604r        0x000A0000
 826#define PVR_620         0x00140000
 827#define PVR_740         0x00080000
 828#define PVR_750         PVR_740
 829#define PVR_740P        0x10080000
 830#define PVR_750P        PVR_740P
 831#define PVR_7400        0x000C0000
 832#define PVR_7410        0x800C0000
 833#define PVR_7450        0x80000000
 834#define PVR_8540        0x80200000
 835#define PVR_8560        0x80200000
 836/*
 837 * For the 8xx processors, all of them report the same PVR family for
 838 * the PowerPC core. The various versions of these processors must be
 839 * differentiated by the version number in the Communication Processor
 840 * Module (CPM).
 841 */
 842#define PVR_821         0x00500000
 843#define PVR_823         PVR_821
 844#define PVR_850         PVR_821
 845#define PVR_860         PVR_821
 846#define PVR_8240        0x00810100
 847#define PVR_8245        0x80811014
 848#define PVR_8260        PVR_8240
 849
 850/* 64-bit processors */
 851/* XXX the prefix should be PVR_, we'll do a global sweep to fix it one day */
 852#define PV_NORTHSTAR    0x0033
 853#define PV_PULSAR       0x0034
 854#define PV_POWER4       0x0035
 855#define PV_ICESTAR      0x0036
 856#define PV_SSTAR        0x0037
 857#define PV_POWER4p      0x0038
 858#define PV_970          0x0039
 859#define PV_POWER5       0x003A
 860#define PV_POWER5p      0x003B
 861#define PV_970FX        0x003C
 862#define PV_630          0x0040
 863#define PV_630p 0x0041
 864#define PV_970MP        0x0044
 865#define PV_970GX        0x0045
 866#define PV_BE           0x0070
 867#define PV_PA6T         0x0090
 868
 869/* Macros for setting and retrieving special purpose registers */
 870#ifndef __ASSEMBLY__
 871#define mfmsr()         ({unsigned long rval; \
 872                        asm volatile("mfmsr %0" : "=r" (rval)); rval;})
 873#ifdef CONFIG_PPC64
 874#define __mtmsrd(v, l)  asm volatile("mtmsrd %0," __stringify(l) \
 875                                     : : "r" (v) : "memory")
 876#define mtmsrd(v)       __mtmsrd((v), 0)
 877#define mtmsr(v)        mtmsrd(v)
 878#else
 879#define mtmsr(v)        asm volatile("mtmsr %0" : : "r" (v) : "memory")
 880#endif
 881
 882#define mfspr(rn)       ({unsigned long rval; \
 883                        asm volatile("mfspr %0," __stringify(rn) \
 884                                : "=r" (rval)); rval;})
 885#define mtspr(rn, v)    asm volatile("mtspr " __stringify(rn) ",%0" : : "r" (v)\
 886                                     : "memory")
 887
 888#ifdef __powerpc64__
 889#ifdef CONFIG_PPC_CELL
 890#define mftb()          ({unsigned long rval;                           \
 891                        asm volatile(                                   \
 892                                "90:    mftb %0;\n"                     \
 893                                "97:    cmpwi %0,0;\n"                  \
 894                                "       beq- 90b;\n"                    \
 895                                "99:\n"                                 \
 896                                ".section __ftr_fixup,\"a\"\n"          \
 897                                ".align 3\n"                            \
 898                                "98:\n"                                 \
 899                                "       .llong %1\n"                    \
 900                                "       .llong %1\n"                    \
 901                                "       .llong 97b-98b\n"               \
 902                                "       .llong 99b-98b\n"               \
 903                                "       .llong 0\n"                     \
 904                                "       .llong 0\n"                     \
 905                                ".previous"                             \
 906                        : "=r" (rval) : "i" (CPU_FTR_CELL_TB_BUG)); rval;})
 907#else
 908#define mftb()          ({unsigned long rval;   \
 909                        asm volatile("mftb %0" : "=r" (rval)); rval;})
 910#endif /* !CONFIG_PPC_CELL */
 911
 912#else /* __powerpc64__ */
 913
 914#define mftbl()         ({unsigned long rval;   \
 915                        asm volatile("mftbl %0" : "=r" (rval)); rval;})
 916#define mftbu()         ({unsigned long rval;   \
 917                        asm volatile("mftbu %0" : "=r" (rval)); rval;})
 918#endif /* !__powerpc64__ */
 919
 920#define mttbl(v)        asm volatile("mttbl %0":: "r"(v))
 921#define mttbu(v)        asm volatile("mttbu %0":: "r"(v))
 922
 923#ifdef CONFIG_PPC32
 924#define mfsrin(v)       ({unsigned int rval; \
 925                        asm volatile("mfsrin %0,%1" : "=r" (rval) : "r" (v)); \
 926                                        rval;})
 927#endif
 928
 929#define proc_trap()     asm volatile("trap")
 930
 931#ifdef CONFIG_PPC64
 932
 933extern void ppc64_runlatch_on(void);
 934extern void ppc64_runlatch_off(void);
 935
 936extern unsigned long scom970_read(unsigned int address);
 937extern void scom970_write(unsigned int address, unsigned long value);
 938
 939#else
 940#define ppc64_runlatch_on()
 941#define ppc64_runlatch_off()
 942
 943#endif /* CONFIG_PPC64 */
 944
 945#define __get_SP()      ({unsigned long sp; \
 946                        asm volatile("mr %0,1": "=r" (sp)); sp;})
 947
 948struct pt_regs;
 949
 950extern void ppc_save_regs(struct pt_regs *regs);
 951
 952#endif /* __ASSEMBLY__ */
 953#endif /* __KERNEL__ */
 954#endif /* _ASM_POWERPC_REG_H */
 955