1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Contains the definition of registers common to all PowerPC variants. 4 * If a register definition has been changed in a different PowerPC 5 * variant, we will case it in #ifndef XXX ... #endif, and have the 6 * number used in the Programming Environments Manual For 32-Bit 7 * Implementations of the PowerPC Architecture (a.k.a. Green Book) here. 8 */ 9 10 #ifndef _ASM_POWERPC_REG_H 11 #define _ASM_POWERPC_REG_H 12 #ifdef __KERNEL__ 13 14 #include <linux/stringify.h> 15 #include <linux/const.h> 16 #include <asm/cputable.h> 17 #include <asm/asm-const.h> 18 #include <asm/feature-fixups.h> 19 20 /* Pickup Book E specific registers. */ 21 #ifdef CONFIG_BOOKE_OR_40x 22 #include <asm/reg_booke.h> 23 #endif 24 25 #ifdef CONFIG_FSL_EMB_PERFMON 26 #include <asm/reg_fsl_emb.h> 27 #endif 28 29 #include <asm/reg_8xx.h> 30 31 #define MSR_SF_LG 63 /* Enable 64 bit mode */ 32 #define MSR_HV_LG 60 /* Hypervisor state */ 33 #define MSR_TS_T_LG 34 /* Trans Mem state: Transactional */ 34 #define MSR_TS_S_LG 33 /* Trans Mem state: Suspended */ 35 #define MSR_TS_LG 33 /* Trans Mem state (2 bits) */ 36 #define MSR_TM_LG 32 /* Trans Mem Available */ 37 #define MSR_VEC_LG 25 /* Enable AltiVec */ 38 #define MSR_VSX_LG 23 /* Enable VSX */ 39 #define MSR_S_LG 22 /* Secure state */ 40 #define MSR_POW_LG 18 /* Enable Power Management */ 41 #define MSR_WE_LG 18 /* Wait State Enable */ 42 #define MSR_TGPR_LG 17 /* TLB Update registers in use */ 43 #define MSR_CE_LG 17 /* Critical Interrupt Enable */ 44 #define MSR_ILE_LG 16 /* Interrupt Little Endian */ 45 #define MSR_EE_LG 15 /* External Interrupt Enable */ 46 #define MSR_PR_LG 14 /* Problem State / Privilege Level */ 47 #define MSR_FP_LG 13 /* Floating Point enable */ 48 #define MSR_ME_LG 12 /* Machine Check Enable */ 49 #define MSR_FE0_LG 11 /* Floating Exception mode 0 */ 50 #define MSR_SE_LG 10 /* Single Step */ 51 #define MSR_BE_LG 9 /* Branch Trace */ 52 #define MSR_DE_LG 9 /* Debug Exception Enable */ 53 #define MSR_FE1_LG 8 /* Floating Exception mode 1 */ 54 #define MSR_IP_LG 6 /* Exception prefix 0x000/0xFFF */ 55 #define MSR_IR_LG 5 /* Instruction Relocate */ 56 #define MSR_DR_LG 4 /* Data Relocate */ 57 #define MSR_PE_LG 3 /* Protection Enable */ 58 #define MSR_PX_LG 2 /* Protection Exclusive Mode */ 59 #define MSR_PMM_LG 2 /* Performance monitor */ 60 #define MSR_RI_LG 1 /* Recoverable Exception */ 61 #define MSR_LE_LG 0 /* Little Endian */ 62 63 #ifdef __ASSEMBLY__ 64 #define __MASK(X) (1<<(X)) 65 #else 66 #define __MASK(X) (1UL<<(X)) 67 #endif 68 69 #ifdef CONFIG_PPC64 70 #define MSR_SF __MASK(MSR_SF_LG) /* Enable 64 bit mode */ 71 #define MSR_HV __MASK(MSR_HV_LG) /* Hypervisor state */ 72 #define MSR_S __MASK(MSR_S_LG) /* Secure state */ 73 #else 74 /* so tests for these bits fail on 32-bit */ 75 #define MSR_SF 0 76 #define MSR_HV 0 77 #define MSR_S 0 78 #endif 79 80 /* 81 * To be used in shared book E/book S, this avoids needing to worry about 82 * book S/book E in shared code 83 */ 84 #ifndef MSR_SPE 85 #define MSR_SPE 0 86 #endif 87 88 #define MSR_VEC __MASK(MSR_VEC_LG) /* Enable AltiVec */ 89 #define MSR_VSX __MASK(MSR_VSX_LG) /* Enable VSX */ 90 #define MSR_POW __MASK(MSR_POW_LG) /* Enable Power Management */ 91 #define MSR_WE __MASK(MSR_WE_LG) /* Wait State Enable */ 92 #define MSR_TGPR __MASK(MSR_TGPR_LG) /* TLB Update registers in use */ 93 #define MSR_CE __MASK(MSR_CE_LG) /* Critical Interrupt Enable */ 94 #define MSR_ILE __MASK(MSR_ILE_LG) /* Interrupt Little Endian */ 95 #define MSR_EE __MASK(MSR_EE_LG) /* External Interrupt Enable */ 96 #define MSR_PR __MASK(MSR_PR_LG) /* Problem State / Privilege Level */ 97 #define MSR_FP __MASK(MSR_FP_LG) /* Floating Point enable */ 98 #define MSR_ME __MASK(MSR_ME_LG) /* Machine Check Enable */ 99 #define MSR_FE0 __MASK(MSR_FE0_LG) /* Floating Exception mode 0 */ 100 #define MSR_SE __MASK(MSR_SE_LG) /* Single Step */ 101 #define MSR_BE __MASK(MSR_BE_LG) /* Branch Trace */ 102 #define MSR_DE __MASK(MSR_DE_LG) /* Debug Exception Enable */ 103 #define MSR_FE1 __MASK(MSR_FE1_LG) /* Floating Exception mode 1 */ 104 #define MSR_IP __MASK(MSR_IP_LG) /* Exception prefix 0x000/0xFFF */ 105 #define MSR_IR __MASK(MSR_IR_LG) /* Instruction Relocate */ 106 #define MSR_DR __MASK(MSR_DR_LG) /* Data Relocate */ 107 #define MSR_PE __MASK(MSR_PE_LG) /* Protection Enable */ 108 #define MSR_PX __MASK(MSR_PX_LG) /* Protection Exclusive Mode */ 109 #ifndef MSR_PMM 110 #define MSR_PMM __MASK(MSR_PMM_LG) /* Performance monitor */ 111 #endif 112 #define MSR_RI __MASK(MSR_RI_LG) /* Recoverable Exception */ 113 #define MSR_LE __MASK(MSR_LE_LG) /* Little Endian */ 114 115 #define MSR_TM __MASK(MSR_TM_LG) /* Transactional Mem Available */ 116 #define MSR_TS_N 0 /* Non-transactional */ 117 #define MSR_TS_S __MASK(MSR_TS_S_LG) /* Transaction Suspended */ 118 #define MSR_TS_T __MASK(MSR_TS_T_LG) /* Transaction Transactional */ 119 #define MSR_TS_MASK (MSR_TS_T | MSR_TS_S) /* Transaction State bits */ 120 #define MSR_TM_RESV(x) (((x) & MSR_TS_MASK) == MSR_TS_MASK) /* Reserved */ 121 #define MSR_TM_TRANSACTIONAL(x) (((x) & MSR_TS_MASK) == MSR_TS_T) 122 #define MSR_TM_SUSPENDED(x) (((x) & MSR_TS_MASK) == MSR_TS_S) 123 124 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM 125 #define MSR_TM_ACTIVE(x) (((x) & MSR_TS_MASK) != 0) /* Transaction active? */ 126 #else 127 #define MSR_TM_ACTIVE(x) ((void)(x), 0) 128 #endif 129 130 #if defined(CONFIG_PPC_BOOK3S_64) 131 #define MSR_64BIT MSR_SF 132 133 /* Server variant */ 134 #define __MSR (MSR_ME | MSR_RI | MSR_IR | MSR_DR | MSR_HV) 135 #ifdef __BIG_ENDIAN__ 136 #define MSR_ __MSR 137 #define MSR_IDLE (MSR_ME | MSR_SF | MSR_HV) 138 #else 139 #define MSR_ (__MSR | MSR_LE) 140 #define MSR_IDLE (MSR_ME | MSR_SF | MSR_HV | MSR_LE) 141 #endif 142 #define MSR_KERNEL (MSR_ | MSR_64BIT) 143 #define MSR_USER32 (MSR_ | MSR_PR | MSR_EE) 144 #define MSR_USER64 (MSR_USER32 | MSR_64BIT) 145 #elif defined(CONFIG_PPC_BOOK3S_32) || defined(CONFIG_PPC_8xx) 146 /* Default MSR for kernel mode. */ 147 #define MSR_KERNEL (MSR_ME|MSR_RI|MSR_IR|MSR_DR) 148 #define MSR_USER (MSR_KERNEL|MSR_PR|MSR_EE) 149 #endif 150 151 #ifndef MSR_64BIT 152 #define MSR_64BIT 0 153 #endif 154 155 /* Condition Register related */ 156 #define CR0_SHIFT 28 157 #define CR0_MASK 0xF 158 #define CR0_TBEGIN_FAILURE (0x2 << 28) /* 0b0010 */ 159 160 161 /* Power Management - Processor Stop Status and Control Register Fields */ 162 #define PSSCR_RL_MASK 0x0000000F /* Requested Level */ 163 #define PSSCR_MTL_MASK 0x000000F0 /* Maximum Transition Level */ 164 #define PSSCR_TR_MASK 0x00000300 /* Transition State */ 165 #define PSSCR_PSLL_MASK 0x000F0000 /* Power-Saving Level Limit */ 166 #define PSSCR_EC 0x00100000 /* Exit Criterion */ 167 #define PSSCR_ESL 0x00200000 /* Enable State Loss */ 168 #define PSSCR_SD 0x00400000 /* Status Disable */ 169 #define PSSCR_PLS 0xf000000000000000 /* Power-saving Level Status */ 170 #define PSSCR_PLS_SHIFT 60 171 #define PSSCR_GUEST_VIS 0xf0000000000003ffUL /* Guest-visible PSSCR fields */ 172 #define PSSCR_FAKE_SUSPEND 0x00000400 /* Fake-suspend bit (P9 DD2.2) */ 173 #define PSSCR_FAKE_SUSPEND_LG 10 /* Fake-suspend bit position */ 174 175 /* Floating Point Status and Control Register (FPSCR) Fields */ 176 #define FPSCR_FX 0x80000000 /* FPU exception summary */ 177 #define FPSCR_FEX 0x40000000 /* FPU enabled exception summary */ 178 #define FPSCR_VX 0x20000000 /* Invalid operation summary */ 179 #define FPSCR_OX 0x10000000 /* Overflow exception summary */ 180 #define FPSCR_UX 0x08000000 /* Underflow exception summary */ 181 #define FPSCR_ZX 0x04000000 /* Zero-divide exception summary */ 182 #define FPSCR_XX 0x02000000 /* Inexact exception summary */ 183 #define FPSCR_VXSNAN 0x01000000 /* Invalid op for SNaN */ 184 #define FPSCR_VXISI 0x00800000 /* Invalid op for Inv - Inv */ 185 #define FPSCR_VXIDI 0x00400000 /* Invalid op for Inv / Inv */ 186 #define FPSCR_VXZDZ 0x00200000 /* Invalid op for Zero / Zero */ 187 #define FPSCR_VXIMZ 0x00100000 /* Invalid op for Inv * Zero */ 188 #define FPSCR_VXVC 0x00080000 /* Invalid op for Compare */ 189 #define FPSCR_FR 0x00040000 /* Fraction rounded */ 190 #define FPSCR_FI 0x00020000 /* Fraction inexact */ 191 #define FPSCR_FPRF 0x0001f000 /* FPU Result Flags */ 192 #define FPSCR_FPCC 0x0000f000 /* FPU Condition Codes */ 193 #define FPSCR_VXSOFT 0x00000400 /* Invalid op for software request */ 194 #define FPSCR_VXSQRT 0x00000200 /* Invalid op for square root */ 195 #define FPSCR_VXCVI 0x00000100 /* Invalid op for integer convert */ 196 #define FPSCR_VE 0x00000080 /* Invalid op exception enable */ 197 #define FPSCR_OE 0x00000040 /* IEEE overflow exception enable */ 198 #define FPSCR_UE 0x00000020 /* IEEE underflow exception enable */ 199 #define FPSCR_ZE 0x00000010 /* IEEE zero divide exception enable */ 200 #define FPSCR_XE 0x00000008 /* FP inexact exception enable */ 201 #define FPSCR_NI 0x00000004 /* FPU non IEEE-Mode */ 202 #define FPSCR_RN 0x00000003 /* FPU rounding control */ 203 204 /* Bit definitions for SPEFSCR. */ 205 #define SPEFSCR_SOVH 0x80000000 /* Summary integer overflow high */ 206 #define SPEFSCR_OVH 0x40000000 /* Integer overflow high */ 207 #define SPEFSCR_FGH 0x20000000 /* Embedded FP guard bit high */ 208 #define SPEFSCR_FXH 0x10000000 /* Embedded FP sticky bit high */ 209 #define SPEFSCR_FINVH 0x08000000 /* Embedded FP invalid operation high */ 210 #define SPEFSCR_FDBZH 0x04000000 /* Embedded FP div by zero high */ 211 #define SPEFSCR_FUNFH 0x02000000 /* Embedded FP underflow high */ 212 #define SPEFSCR_FOVFH 0x01000000 /* Embedded FP overflow high */ 213 #define SPEFSCR_FINXS 0x00200000 /* Embedded FP inexact sticky */ 214 #define SPEFSCR_FINVS 0x00100000 /* Embedded FP invalid op. sticky */ 215 #define SPEFSCR_FDBZS 0x00080000 /* Embedded FP div by zero sticky */ 216 #define SPEFSCR_FUNFS 0x00040000 /* Embedded FP underflow sticky */ 217 #define SPEFSCR_FOVFS 0x00020000 /* Embedded FP overflow sticky */ 218 #define SPEFSCR_MODE 0x00010000 /* Embedded FP mode */ 219 #define SPEFSCR_SOV 0x00008000 /* Integer summary overflow */ 220 #define SPEFSCR_OV 0x00004000 /* Integer overflow */ 221 #define SPEFSCR_FG 0x00002000 /* Embedded FP guard bit */ 222 #define SPEFSCR_FX 0x00001000 /* Embedded FP sticky bit */ 223 #define SPEFSCR_FINV 0x00000800 /* Embedded FP invalid operation */ 224 #define SPEFSCR_FDBZ 0x00000400 /* Embedded FP div by zero */ 225 #define SPEFSCR_FUNF 0x00000200 /* Embedded FP underflow */ 226 #define SPEFSCR_FOVF 0x00000100 /* Embedded FP overflow */ 227 #define SPEFSCR_FINXE 0x00000040 /* Embedded FP inexact enable */ 228 #define SPEFSCR_FINVE 0x00000020 /* Embedded FP invalid op. enable */ 229 #define SPEFSCR_FDBZE 0x00000010 /* Embedded FP div by zero enable */ 230 #define SPEFSCR_FUNFE 0x00000008 /* Embedded FP underflow enable */ 231 #define SPEFSCR_FOVFE 0x00000004 /* Embedded FP overflow enable */ 232 #define SPEFSCR_FRMC 0x00000003 /* Embedded FP rounding mode control */ 233 234 /* Special Purpose Registers (SPRNs)*/ 235 236 #ifdef CONFIG_40x 237 #define SPRN_PID 0x3B1 /* Process ID */ 238 #else 239 #define SPRN_PID 0x030 /* Process ID */ 240 #ifdef CONFIG_BOOKE 241 #define SPRN_PID0 SPRN_PID/* Process ID Register 0 */ 242 #endif 243 #endif 244 245 #define SPRN_CTR 0x009 /* Count Register */ 246 #define SPRN_DSCR 0x11 247 #define SPRN_CFAR 0x1c /* Come From Address Register */ 248 #define SPRN_AMR 0x1d /* Authority Mask Register */ 249 #define SPRN_UAMOR 0x9d /* User Authority Mask Override Register */ 250 #define SPRN_AMOR 0x15d /* Authority Mask Override Register */ 251 #define SPRN_ACOP 0x1F /* Available Coprocessor Register */ 252 #define SPRN_TFIAR 0x81 /* Transaction Failure Inst Addr */ 253 #define SPRN_TEXASR 0x82 /* Transaction EXception & Summary */ 254 #define SPRN_TEXASRU 0x83 /* '' '' '' Upper 32 */ 255 256 #define TEXASR_FC_LG (63 - 7) /* Failure Code */ 257 #define TEXASR_AB_LG (63 - 31) /* Abort */ 258 #define TEXASR_SU_LG (63 - 32) /* Suspend */ 259 #define TEXASR_HV_LG (63 - 34) /* Hypervisor state*/ 260 #define TEXASR_PR_LG (63 - 35) /* Privilege level */ 261 #define TEXASR_FS_LG (63 - 36) /* failure summary */ 262 #define TEXASR_EX_LG (63 - 37) /* TFIAR exact bit */ 263 #define TEXASR_ROT_LG (63 - 38) /* ROT bit */ 264 265 #define TEXASR_ABORT __MASK(TEXASR_AB_LG) /* terminated by tabort or treclaim */ 266 #define TEXASR_SUSP __MASK(TEXASR_SU_LG) /* tx failed in suspended state */ 267 #define TEXASR_HV __MASK(TEXASR_HV_LG) /* MSR[HV] when failure occurred */ 268 #define TEXASR_PR __MASK(TEXASR_PR_LG) /* MSR[PR] when failure occurred */ 269 #define TEXASR_FS __MASK(TEXASR_FS_LG) /* TEXASR Failure Summary */ 270 #define TEXASR_EXACT __MASK(TEXASR_EX_LG) /* TFIAR value is exact */ 271 #define TEXASR_ROT __MASK(TEXASR_ROT_LG) 272 #define TEXASR_FC (ASM_CONST(0xFF) << TEXASR_FC_LG) 273 274 #define SPRN_TFHAR 0x80 /* Transaction Failure Handler Addr */ 275 276 #define SPRN_TIDR 144 /* Thread ID register */ 277 #define SPRN_CTRLF 0x088 278 #define SPRN_CTRLT 0x098 279 #define CTRL_CT 0xc0000000 /* current thread */ 280 #define CTRL_CT0 0x80000000 /* thread 0 */ 281 #define CTRL_CT1 0x40000000 /* thread 1 */ 282 #define CTRL_TE 0x00c00000 /* thread enable */ 283 #define CTRL_RUNLATCH 0x1 284 #define SPRN_DAWR0 0xB4 285 #define SPRN_DAWR1 0xB5 286 #define SPRN_RPR 0xBA /* Relative Priority Register */ 287 #define SPRN_CIABR 0xBB 288 #define CIABR_PRIV 0x3 289 #define CIABR_PRIV_USER 1 290 #define CIABR_PRIV_SUPER 2 291 #define CIABR_PRIV_HYPER 3 292 #define SPRN_DAWRX0 0xBC 293 #define SPRN_DAWRX1 0xBD 294 #define DAWRX_USER __MASK(0) 295 #define DAWRX_KERNEL __MASK(1) 296 #define DAWRX_HYP __MASK(2) 297 #define DAWRX_WTI __MASK(3) 298 #define DAWRX_WT __MASK(4) 299 #define DAWRX_DR __MASK(5) 300 #define DAWRX_DW __MASK(6) 301 #define SPRN_DABR 0x3F5 /* Data Address Breakpoint Register */ 302 #define SPRN_DABR2 0x13D /* e300 */ 303 #define SPRN_DABRX 0x3F7 /* Data Address Breakpoint Register Extension */ 304 #define DABRX_USER __MASK(0) 305 #define DABRX_KERNEL __MASK(1) 306 #define DABRX_HYP __MASK(2) 307 #define DABRX_BTI __MASK(3) 308 #define DABRX_ALL (DABRX_BTI | DABRX_HYP | DABRX_KERNEL | DABRX_USER) 309 #define SPRN_DAR 0x013 /* Data Address Register */ 310 #define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */ 311 #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */ 312 #define DSISR_BAD_DIRECT_ST 0x80000000 /* Obsolete: Direct store error */ 313 #define DSISR_NOHPTE 0x40000000 /* no translation found */ 314 #define DSISR_ATTR_CONFLICT 0x20000000 /* P9: Process vs. Partition attr */ 315 #define DSISR_NOEXEC_OR_G 0x10000000 /* Alias of SRR1 bit, see below */ 316 #define DSISR_PROTFAULT 0x08000000 /* protection fault */ 317 #define DSISR_BADACCESS 0x04000000 /* bad access to CI or G */ 318 #define DSISR_ISSTORE 0x02000000 /* access was a store */ 319 #define DSISR_DABRMATCH 0x00400000 /* hit data breakpoint */ 320 #define DSISR_NOSEGMENT 0x00200000 /* STAB miss (unsupported) */ 321 #define DSISR_KEYFAULT 0x00200000 /* Storage Key fault */ 322 #define DSISR_BAD_EXT_CTRL 0x00100000 /* Obsolete: External ctrl error */ 323 #define DSISR_UNSUPP_MMU 0x00080000 /* P9: Unsupported MMU config */ 324 #define DSISR_SET_RC 0x00040000 /* P9: Failed setting of R/C bits */ 325 #define DSISR_PRTABLE_FAULT 0x00020000 /* P9: Fault on process table */ 326 #define DSISR_ICSWX_NO_CT 0x00004000 /* P7: icswx unavailable cp type */ 327 #define DSISR_BAD_COPYPASTE 0x00000008 /* P9: Copy/Paste on wrong memtype */ 328 #define DSISR_BAD_AMO 0x00000004 /* P9: Incorrect AMO opcode */ 329 #define DSISR_BAD_CI_LDST 0x00000002 /* P8: Bad HV CI load/store */ 330 331 /* 332 * DSISR_NOEXEC_OR_G doesn't actually exist. This bit is always 333 * 0 on DSIs. However, on ISIs, the corresponding bit in SRR1 334 * indicates an attempt at executing from a no-execute PTE 335 * or segment or from a guarded page. 336 * 337 * We add a definition here for completeness as we alias 338 * DSISR and SRR1 in do_page_fault. 339 */ 340 341 /* 342 * DSISR bits that are treated as a fault. Any bit set 343 * here will skip hash_page, and cause do_page_fault to 344 * trigger a SIGBUS or SIGSEGV: 345 */ 346 #define DSISR_BAD_FAULT_32S (DSISR_BAD_DIRECT_ST | \ 347 DSISR_BADACCESS | \ 348 DSISR_BAD_EXT_CTRL) 349 #define DSISR_BAD_FAULT_64S (DSISR_BAD_FAULT_32S | \ 350 DSISR_ATTR_CONFLICT | \ 351 DSISR_UNSUPP_MMU | \ 352 DSISR_PRTABLE_FAULT | \ 353 DSISR_ICSWX_NO_CT | \ 354 DSISR_BAD_COPYPASTE | \ 355 DSISR_BAD_AMO | \ 356 DSISR_BAD_CI_LDST) 357 /* 358 * These bits are equivalent in SRR1 and DSISR for 0x400 359 * instruction access interrupts on Book3S 360 */ 361 #define DSISR_SRR1_MATCH_32S (DSISR_NOHPTE | \ 362 DSISR_NOEXEC_OR_G | \ 363 DSISR_PROTFAULT) 364 #define DSISR_SRR1_MATCH_64S (DSISR_SRR1_MATCH_32S | \ 365 DSISR_KEYFAULT | \ 366 DSISR_UNSUPP_MMU | \ 367 DSISR_SET_RC | \ 368 DSISR_PRTABLE_FAULT) 369 370 #define SPRN_TBRL 0x10C /* Time Base Read Lower Register (user, R/O) */ 371 #define SPRN_TBRU 0x10D /* Time Base Read Upper Register (user, R/O) */ 372 #define SPRN_CIR 0x11B /* Chip Information Register (hyper, R/0) */ 373 #define SPRN_TBWL 0x11C /* Time Base Lower Register (super, R/W) */ 374 #define SPRN_TBWU 0x11D /* Time Base Upper Register (super, R/W) */ 375 #define SPRN_TBU40 0x11E /* Timebase upper 40 bits (hyper, R/W) */ 376 #define SPRN_SPURR 0x134 /* Scaled PURR */ 377 #define SPRN_HSPRG0 0x130 /* Hypervisor Scratch 0 */ 378 #define SPRN_HSPRG1 0x131 /* Hypervisor Scratch 1 */ 379 #define SPRN_HDSISR 0x132 380 #define SPRN_HDAR 0x133 381 #define SPRN_HDEC 0x136 /* Hypervisor Decrementer */ 382 #define SPRN_HIOR 0x137 /* 970 Hypervisor interrupt offset */ 383 #define SPRN_RMOR 0x138 /* Real mode offset register */ 384 #define SPRN_HRMOR 0x139 /* Real mode offset register */ 385 #define SPRN_HDEXCR_RO 0x1C7 /* Hypervisor DEXCR (non-privileged, readonly) */ 386 #define SPRN_HASHKEYR 0x1D4 /* Non-privileged hashst/hashchk key register */ 387 #define SPRN_HDEXCR 0x1D7 /* Hypervisor dynamic execution control register */ 388 #define SPRN_DEXCR_RO 0x32C /* DEXCR (non-privileged, readonly) */ 389 #define SPRN_ASDR 0x330 /* Access segment descriptor register */ 390 #define SPRN_DEXCR 0x33C /* Dynamic execution control register */ 391 #define DEXCR_PR_SBHE 0x80000000UL /* 0: Speculative Branch Hint Enable */ 392 #define DEXCR_PR_IBRTPD 0x10000000UL /* 3: Indirect Branch Recurrent Target Prediction Disable */ 393 #define DEXCR_PR_SRAPD 0x08000000UL /* 4: Subroutine Return Address Prediction Disable */ 394 #define DEXCR_PR_NPHIE 0x04000000UL /* 5: Non-Privileged Hash Instruction Enable */ 395 #define DEXCR_INIT DEXCR_PR_NPHIE /* Fixed DEXCR value to initialise all CPUs with */ 396 #define SPRN_IC 0x350 /* Virtual Instruction Count */ 397 #define SPRN_VTB 0x351 /* Virtual Time Base */ 398 #define SPRN_LDBAR 0x352 /* LD Base Address Register */ 399 #define SPRN_PMICR 0x354 /* Power Management Idle Control Reg */ 400 #define SPRN_PMSR 0x355 /* Power Management Status Reg */ 401 #define SPRN_PMMAR 0x356 /* Power Management Memory Activity Register */ 402 #define SPRN_PSSCR 0x357 /* Processor Stop Status and Control Register (ISA 3.0) */ 403 #define SPRN_PSSCR_PR 0x337 /* PSSCR ISA 3.0, privileged mode access */ 404 #define SPRN_TRIG2 0x372 405 #define SPRN_PMCR 0x374 /* Power Management Control Register */ 406 #define SPRN_RWMR 0x375 /* Region-Weighting Mode Register */ 407 408 /* HFSCR and FSCR bit numbers are the same */ 409 #define FSCR_PREFIX_LG 13 /* Enable Prefix Instructions */ 410 #define FSCR_SCV_LG 12 /* Enable System Call Vectored */ 411 #define FSCR_MSGP_LG 10 /* Enable MSGP */ 412 #define FSCR_TAR_LG 8 /* Enable Target Address Register */ 413 #define FSCR_EBB_LG 7 /* Enable Event Based Branching */ 414 #define FSCR_TM_LG 5 /* Enable Transactional Memory */ 415 #define FSCR_BHRB_LG 4 /* Enable Branch History Rolling Buffer*/ 416 #define FSCR_PM_LG 3 /* Enable prob/priv access to PMU SPRs */ 417 #define FSCR_DSCR_LG 2 /* Enable Data Stream Control Register */ 418 #define FSCR_VECVSX_LG 1 /* Enable VMX/VSX */ 419 #define FSCR_FP_LG 0 /* Enable Floating Point */ 420 #define SPRN_FSCR 0x099 /* Facility Status & Control Register */ 421 #define FSCR_PREFIX __MASK(FSCR_PREFIX_LG) 422 #define FSCR_SCV __MASK(FSCR_SCV_LG) 423 #define FSCR_TAR __MASK(FSCR_TAR_LG) 424 #define FSCR_EBB __MASK(FSCR_EBB_LG) 425 #define FSCR_DSCR __MASK(FSCR_DSCR_LG) 426 #define FSCR_INTR_CAUSE (ASM_CONST(0xFF) << 56) /* interrupt cause */ 427 #define SPRN_HFSCR 0xbe /* HV=1 Facility Status & Control Register */ 428 #define HFSCR_PREFIX __MASK(FSCR_PREFIX_LG) 429 #define HFSCR_MSGP __MASK(FSCR_MSGP_LG) 430 #define HFSCR_TAR __MASK(FSCR_TAR_LG) 431 #define HFSCR_EBB __MASK(FSCR_EBB_LG) 432 #define HFSCR_TM __MASK(FSCR_TM_LG) 433 #define HFSCR_PM __MASK(FSCR_PM_LG) 434 #define HFSCR_BHRB __MASK(FSCR_BHRB_LG) 435 #define HFSCR_DSCR __MASK(FSCR_DSCR_LG) 436 #define HFSCR_VECVSX __MASK(FSCR_VECVSX_LG) 437 #define HFSCR_FP __MASK(FSCR_FP_LG) 438 #define HFSCR_INTR_CAUSE FSCR_INTR_CAUSE 439 #define SPRN_TAR 0x32f /* Target Address Register */ 440 #define SPRN_LPCR 0x13E /* LPAR Control Register */ 441 #define LPCR_VPM0 ASM_CONST(0x8000000000000000) 442 #define LPCR_VPM1 ASM_CONST(0x4000000000000000) 443 #define LPCR_ISL ASM_CONST(0x2000000000000000) 444 #define LPCR_VC_SH 61 445 #define LPCR_DPFD_SH 52 446 #define LPCR_DPFD (ASM_CONST(7) << LPCR_DPFD_SH) 447 #define LPCR_VRMASD_SH 47 448 #define LPCR_VRMASD (ASM_CONST(0x1f) << LPCR_VRMASD_SH) 449 #define LPCR_VRMA_L ASM_CONST(0x0008000000000000) 450 #define LPCR_VRMA_LP0 ASM_CONST(0x0001000000000000) 451 #define LPCR_VRMA_LP1 ASM_CONST(0x0000800000000000) 452 #define LPCR_RMLS 0x1C000000 /* Implementation dependent RMO limit sel */ 453 #define LPCR_RMLS_SH 26 454 #define LPCR_HAIL ASM_CONST(0x0000000004000000) /* HV AIL (ISAv3.1) */ 455 #define LPCR_ILE ASM_CONST(0x0000000002000000) /* !HV irqs set MSR:LE */ 456 #define LPCR_AIL ASM_CONST(0x0000000001800000) /* Alternate interrupt location */ 457 #define LPCR_AIL_0 ASM_CONST(0x0000000000000000) /* MMU off exception offset 0x0 */ 458 #define LPCR_AIL_3 ASM_CONST(0x0000000001800000) /* MMU on exception offset 0xc00...4xxx */ 459 #define LPCR_ONL ASM_CONST(0x0000000000040000) /* online - PURR/SPURR count */ 460 #define LPCR_LD ASM_CONST(0x0000000000020000) /* large decremeter */ 461 #define LPCR_PECE ASM_CONST(0x000000000001f000) /* powersave exit cause enable */ 462 #define LPCR_PECEDP ASM_CONST(0x0000000000010000) /* directed priv dbells cause exit */ 463 #define LPCR_PECEDH ASM_CONST(0x0000000000008000) /* directed hyp dbells cause exit */ 464 #define LPCR_PECE0 ASM_CONST(0x0000000000004000) /* ext. exceptions can cause exit */ 465 #define LPCR_PECE1 ASM_CONST(0x0000000000002000) /* decrementer can cause exit */ 466 #define LPCR_PECE2 ASM_CONST(0x0000000000001000) /* machine check etc can cause exit */ 467 #define LPCR_PECE_HVEE ASM_CONST(0x0000400000000000) /* P9 Wakeup on HV interrupts */ 468 #define LPCR_MER ASM_CONST(0x0000000000000800) /* Mediated External Exception */ 469 #define LPCR_MER_SH 11 470 #define LPCR_GTSE ASM_CONST(0x0000000000000400) /* Guest Translation Shootdown Enable */ 471 #define LPCR_TC ASM_CONST(0x0000000000000200) /* Translation control */ 472 #define LPCR_HEIC ASM_CONST(0x0000000000000010) /* Hypervisor External Interrupt Control */ 473 #define LPCR_LPES 0x0000000c 474 #define LPCR_LPES0 ASM_CONST(0x0000000000000008) /* LPAR Env selector 0 */ 475 #define LPCR_LPES1 ASM_CONST(0x0000000000000004) /* LPAR Env selector 1 */ 476 #define LPCR_LPES_SH 2 477 #define LPCR_RMI ASM_CONST(0x0000000000000002) /* real mode is cache inhibit */ 478 #define LPCR_HVICE ASM_CONST(0x0000000000000002) /* P9: HV interrupt enable */ 479 #define LPCR_HDICE ASM_CONST(0x0000000000000001) /* Hyp Decr enable (HV,PR,EE) */ 480 #define LPCR_UPRT ASM_CONST(0x0000000000400000) /* Use Process Table (ISA 3) */ 481 #define LPCR_HR ASM_CONST(0x0000000000100000) 482 #ifndef SPRN_LPID 483 #define SPRN_LPID 0x13F /* Logical Partition Identifier */ 484 #endif 485 #define SPRN_HMER 0x150 /* Hypervisor maintenance exception reg */ 486 #define HMER_DEBUG_TRIG (1ul << (63 - 17)) /* Debug trigger */ 487 #define SPRN_HMEER 0x151 /* Hyp maintenance exception enable reg */ 488 #define SPRN_PCR 0x152 /* Processor compatibility register */ 489 #define PCR_VEC_DIS (__MASK(63-0)) /* Vec. disable (bit NA since POWER8) */ 490 #define PCR_VSX_DIS (__MASK(63-1)) /* VSX disable (bit NA since POWER8) */ 491 #define PCR_TM_DIS (__MASK(63-2)) /* Trans. memory disable (POWER8) */ 492 #define PCR_MMA_DIS (__MASK(63-3)) /* Matrix-Multiply Accelerator */ 493 #define PCR_HIGH_BITS (PCR_MMA_DIS | PCR_VEC_DIS | PCR_VSX_DIS | PCR_TM_DIS) 494 /* 495 * These bits are used in the function kvmppc_set_arch_compat() to specify and 496 * determine both the compatibility level which we want to emulate and the 497 * compatibility level which the host is capable of emulating. 498 */ 499 #define PCR_ARCH_300 0x10 /* Architecture 3.00 */ 500 #define PCR_ARCH_207 0x8 /* Architecture 2.07 */ 501 #define PCR_ARCH_206 0x4 /* Architecture 2.06 */ 502 #define PCR_ARCH_205 0x2 /* Architecture 2.05 */ 503 #define PCR_LOW_BITS (PCR_ARCH_207 | PCR_ARCH_206 | PCR_ARCH_205 | PCR_ARCH_300) 504 #define PCR_MASK ~(PCR_HIGH_BITS | PCR_LOW_BITS) /* PCR Reserved Bits */ 505 #define SPRN_HEIR 0x153 /* Hypervisor Emulated Instruction Register */ 506 #define SPRN_TLBINDEXR 0x154 /* P7 TLB control register */ 507 #define SPRN_TLBVPNR 0x155 /* P7 TLB control register */ 508 #define SPRN_TLBRPNR 0x156 /* P7 TLB control register */ 509 #define SPRN_TLBLPIDR 0x157 /* P7 TLB control register */ 510 #define SPRN_DBAT0L 0x219 /* Data BAT 0 Lower Register */ 511 #define SPRN_DBAT0U 0x218 /* Data BAT 0 Upper Register */ 512 #define SPRN_DBAT1L 0x21B /* Data BAT 1 Lower Register */ 513 #define SPRN_DBAT1U 0x21A /* Data BAT 1 Upper Register */ 514 #define SPRN_DBAT2L 0x21D /* Data BAT 2 Lower Register */ 515 #define SPRN_DBAT2U 0x21C /* Data BAT 2 Upper Register */ 516 #define SPRN_DBAT3L 0x21F /* Data BAT 3 Lower Register */ 517 #define SPRN_DBAT3U 0x21E /* Data BAT 3 Upper Register */ 518 #define SPRN_DBAT4L 0x239 /* Data BAT 4 Lower Register */ 519 #define SPRN_DBAT4U 0x238 /* Data BAT 4 Upper Register */ 520 #define SPRN_DBAT5L 0x23B /* Data BAT 5 Lower Register */ 521 #define SPRN_DBAT5U 0x23A /* Data BAT 5 Upper Register */ 522 #define SPRN_DBAT6L 0x23D /* Data BAT 6 Lower Register */ 523 #define SPRN_DBAT6U 0x23C /* Data BAT 6 Upper Register */ 524 #define SPRN_DBAT7L 0x23F /* Data BAT 7 Lower Register */ 525 #define SPRN_DBAT7U 0x23E /* Data BAT 7 Upper Register */ 526 #define SPRN_PPR 0x380 /* SMT Thread status Register */ 527 #define SPRN_TSCR 0x399 /* Thread Switch Control Register */ 528 529 #define SPRN_DEC 0x016 /* Decrement Register */ 530 #define SPRN_PIT 0x3DB /* Programmable Interval Timer (40x/BOOKE) */ 531 532 #define SPRN_DER 0x095 /* Debug Enable Register */ 533 #define DER_RSTE 0x40000000 /* Reset Interrupt */ 534 #define DER_CHSTPE 0x20000000 /* Check Stop */ 535 #define DER_MCIE 0x10000000 /* Machine Check Interrupt */ 536 #define DER_EXTIE 0x02000000 /* External Interrupt */ 537 #define DER_ALIE 0x01000000 /* Alignment Interrupt */ 538 #define DER_PRIE 0x00800000 /* Program Interrupt */ 539 #define DER_FPUVIE 0x00400000 /* FP Unavailable Interrupt */ 540 #define DER_DECIE 0x00200000 /* Decrementer Interrupt */ 541 #define DER_SYSIE 0x00040000 /* System Call Interrupt */ 542 #define DER_TRE 0x00020000 /* Trace Interrupt */ 543 #define DER_SEIE 0x00004000 /* FP SW Emulation Interrupt */ 544 #define DER_ITLBMSE 0x00002000 /* Imp. Spec. Instruction TLB Miss */ 545 #define DER_ITLBERE 0x00001000 /* Imp. Spec. Instruction TLB Error */ 546 #define DER_DTLBMSE 0x00000800 /* Imp. Spec. Data TLB Miss */ 547 #define DER_DTLBERE 0x00000400 /* Imp. Spec. Data TLB Error */ 548 #define DER_LBRKE 0x00000008 /* Load/Store Breakpoint Interrupt */ 549 #define DER_IBRKE 0x00000004 /* Instruction Breakpoint Interrupt */ 550 #define DER_EBRKE 0x00000002 /* External Breakpoint Interrupt */ 551 #define DER_DPIE 0x00000001 /* Dev. Port Nonmaskable Request */ 552 #define SPRN_DMISS 0x3D0 /* Data TLB Miss Register */ 553 #define SPRN_DHDES 0x0B1 /* Directed Hyp. Doorbell Exc. State */ 554 #define SPRN_DPDES 0x0B0 /* Directed Priv. Doorbell Exc. State */ 555 #define SPRN_EAR 0x11A /* External Address Register */ 556 #define SPRN_HASH1 0x3D2 /* Primary Hash Address Register */ 557 #define SPRN_HASH2 0x3D3 /* Secondary Hash Address Register */ 558 #define SPRN_HID0 0x3F0 /* Hardware Implementation Register 0 */ 559 #define HID0_HDICE_SH (63 - 23) /* 970 HDEC interrupt enable */ 560 #define HID0_EMCP (1<<31) /* Enable Machine Check pin */ 561 #define HID0_EBA (1<<29) /* Enable Bus Address Parity */ 562 #define HID0_EBD (1<<28) /* Enable Bus Data Parity */ 563 #define HID0_SBCLK (1<<27) 564 #define HID0_EICE (1<<26) 565 #define HID0_TBEN (1<<26) /* Timebase enable - 745x */ 566 #define HID0_ECLK (1<<25) 567 #define HID0_PAR (1<<24) 568 #define HID0_STEN (1<<24) /* Software table search enable - 745x */ 569 #define HID0_HIGH_BAT (1<<23) /* Enable high BATs - 7455 */ 570 #define HID0_DOZE (1<<23) 571 #define HID0_NAP (1<<22) 572 #define HID0_SLEEP (1<<21) 573 #define HID0_DPM (1<<20) 574 #define HID0_BHTCLR (1<<18) /* Clear branch history table - 7450 */ 575 #define HID0_XAEN (1<<17) /* Extended addressing enable - 7450 */ 576 #define HID0_NHR (1<<16) /* Not hard reset (software bit-7450)*/ 577 #define HID0_ICE (1<<15) /* Instruction Cache Enable */ 578 #define HID0_DCE (1<<14) /* Data Cache Enable */ 579 #define HID0_ILOCK (1<<13) /* Instruction Cache Lock */ 580 #define HID0_DLOCK (1<<12) /* Data Cache Lock */ 581 #define HID0_ICFI (1<<11) /* Instr. Cache Flash Invalidate */ 582 #define HID0_DCI (1<<10) /* Data Cache Invalidate */ 583 #define HID0_SPD (1<<9) /* Speculative disable */ 584 #define HID0_DAPUEN (1<<8) /* Debug APU enable */ 585 #define HID0_SGE (1<<7) /* Store Gathering Enable */ 586 #define HID0_SIED (1<<7) /* Serial Instr. Execution [Disable] */ 587 #define HID0_DCFA (1<<6) /* Data Cache Flush Assist */ 588 #define HID0_LRSTK (1<<4) /* Link register stack - 745x */ 589 #define HID0_BTIC (1<<5) /* Branch Target Instr Cache Enable */ 590 #define HID0_ABE (1<<3) /* Address Broadcast Enable */ 591 #define HID0_FOLD (1<<3) /* Branch Folding enable - 745x */ 592 #define HID0_BHTE (1<<2) /* Branch History Table Enable */ 593 #define HID0_BTCD (1<<1) /* Branch target cache disable */ 594 #define HID0_NOPDST (1<<1) /* No-op dst, dstt, etc. instr. */ 595 #define HID0_NOPTI (1<<0) /* No-op dcbt and dcbst instr. */ 596 /* POWER8 HID0 bits */ 597 #define HID0_POWER8_4LPARMODE __MASK(61) 598 #define HID0_POWER8_2LPARMODE __MASK(57) 599 #define HID0_POWER8_1TO2LPAR __MASK(52) 600 #define HID0_POWER8_1TO4LPAR __MASK(51) 601 #define HID0_POWER8_DYNLPARDIS __MASK(48) 602 603 /* POWER9 HID0 bits */ 604 #define HID0_POWER9_RADIX __MASK(63 - 8) 605 606 #define SPRN_HID1 0x3F1 /* Hardware Implementation Register 1 */ 607 #ifdef CONFIG_PPC_BOOK3S_32 608 #define HID1_EMCP (1<<31) /* 7450 Machine Check Pin Enable */ 609 #define HID1_DFS (1<<22) /* 7447A Dynamic Frequency Scaling */ 610 #define HID1_PC0 (1<<16) /* 7450 PLL_CFG[0] */ 611 #define HID1_PC1 (1<<15) /* 7450 PLL_CFG[1] */ 612 #define HID1_PC2 (1<<14) /* 7450 PLL_CFG[2] */ 613 #define HID1_PC3 (1<<13) /* 7450 PLL_CFG[3] */ 614 #define HID1_SYNCBE (1<<11) /* 7450 ABE for sync, eieio */ 615 #define HID1_ABE (1<<10) /* 7450 Address Broadcast Enable */ 616 #define HID1_PS (1<<16) /* 750FX PLL selection */ 617 #endif 618 #define SPRN_HID2 0x3F8 /* Hardware Implementation Register 2 */ 619 #define SPRN_HID2_GEKKO 0x398 /* Gekko HID2 Register */ 620 #define SPRN_HID2_G2_LE 0x3F3 /* G2_LE HID2 Register */ 621 #define HID2_G2_LE_HBE (1<<18) /* High BAT Enable (G2_LE) */ 622 #define SPRN_IABR 0x3F2 /* Instruction Address Breakpoint Register */ 623 #define SPRN_IABR2 0x3FA /* 83xx */ 624 #define SPRN_IBCR 0x135 /* 83xx Insn Breakpoint Control Reg */ 625 #define SPRN_IAMR 0x03D /* Instr. Authority Mask Reg */ 626 #define SPRN_HID4 0x3F4 /* 970 HID4 */ 627 #define HID4_LPES0 (1ul << (63-0)) /* LPAR env. sel. bit 0 */ 628 #define HID4_RMLS2_SH (63 - 2) /* Real mode limit bottom 2 bits */ 629 #define HID4_LPID5_SH (63 - 6) /* partition ID bottom 4 bits */ 630 #define HID4_RMOR_SH (63 - 22) /* real mode offset (16 bits) */ 631 #define HID4_RMOR (0xFFFFul << HID4_RMOR_SH) 632 #define HID4_LPES1 (1 << (63-57)) /* LPAR env. sel. bit 1 */ 633 #define HID4_RMLS0_SH (63 - 58) /* Real mode limit top bit */ 634 #define HID4_LPID1_SH 0 /* partition ID top 2 bits */ 635 #define SPRN_HID4_GEKKO 0x3F3 /* Gekko HID4 */ 636 #define SPRN_HID5 0x3F6 /* 970 HID5 */ 637 #define SPRN_HID6 0x3F9 /* BE HID 6 */ 638 #define HID6_LB (0x0F<<12) /* Concurrent Large Page Modes */ 639 #define HID6_DLP (1<<20) /* Disable all large page modes (4K only) */ 640 #define SPRN_TSC_CELL 0x399 /* Thread switch control on Cell */ 641 #define TSC_CELL_DEC_ENABLE_0 0x400000 /* Decrementer Interrupt */ 642 #define TSC_CELL_DEC_ENABLE_1 0x200000 /* Decrementer Interrupt */ 643 #define TSC_CELL_EE_ENABLE 0x100000 /* External Interrupt */ 644 #define TSC_CELL_EE_BOOST 0x080000 /* External Interrupt Boost */ 645 #define SPRN_TSC 0x3FD /* Thread switch control on others */ 646 #define SPRN_TST 0x3FC /* Thread switch timeout on others */ 647 #if !defined(SPRN_IAC1) && !defined(SPRN_IAC2) 648 #define SPRN_IAC1 0x3F4 /* Instruction Address Compare 1 */ 649 #define SPRN_IAC2 0x3F5 /* Instruction Address Compare 2 */ 650 #endif 651 #define SPRN_IBAT0L 0x211 /* Instruction BAT 0 Lower Register */ 652 #define SPRN_IBAT0U 0x210 /* Instruction BAT 0 Upper Register */ 653 #define SPRN_IBAT1L 0x213 /* Instruction BAT 1 Lower Register */ 654 #define SPRN_IBAT1U 0x212 /* Instruction BAT 1 Upper Register */ 655 #define SPRN_IBAT2L 0x215 /* Instruction BAT 2 Lower Register */ 656 #define SPRN_IBAT2U 0x214 /* Instruction BAT 2 Upper Register */ 657 #define SPRN_IBAT3L 0x217 /* Instruction BAT 3 Lower Register */ 658 #define SPRN_IBAT3U 0x216 /* Instruction BAT 3 Upper Register */ 659 #define SPRN_IBAT4L 0x231 /* Instruction BAT 4 Lower Register */ 660 #define SPRN_IBAT4U 0x230 /* Instruction BAT 4 Upper Register */ 661 #define SPRN_IBAT5L 0x233 /* Instruction BAT 5 Lower Register */ 662 #define SPRN_IBAT5U 0x232 /* Instruction BAT 5 Upper Register */ 663 #define SPRN_IBAT6L 0x235 /* Instruction BAT 6 Lower Register */ 664 #define SPRN_IBAT6U 0x234 /* Instruction BAT 6 Upper Register */ 665 #define SPRN_IBAT7L 0x237 /* Instruction BAT 7 Lower Register */ 666 #define SPRN_IBAT7U 0x236 /* Instruction BAT 7 Upper Register */ 667 #define SPRN_ICMP 0x3D5 /* Instruction TLB Compare Register */ 668 #define SPRN_ICTC 0x3FB /* Instruction Cache Throttling Control Reg */ 669 #ifndef SPRN_ICTRL 670 #define SPRN_ICTRL 0x3F3 /* 1011 7450 icache and interrupt ctrl */ 671 #endif 672 #define ICTRL_EICE 0x08000000 /* enable icache parity errs */ 673 #define ICTRL_EDC 0x04000000 /* enable dcache parity errs */ 674 #define ICTRL_EICP 0x00000100 /* enable icache par. check */ 675 #define SPRN_IMISS 0x3D4 /* Instruction TLB Miss Register */ 676 #define SPRN_IMMR 0x27E /* Internal Memory Map Register */ 677 #define SPRN_L2CR 0x3F9 /* Level 2 Cache Control Register */ 678 #define SPRN_L2CR2 0x3f8 679 #define L2CR_L2E 0x80000000 /* L2 enable */ 680 #define L2CR_L2PE 0x40000000 /* L2 parity enable */ 681 #define L2CR_L2SIZ_MASK 0x30000000 /* L2 size mask */ 682 #define L2CR_L2SIZ_256KB 0x10000000 /* L2 size 256KB */ 683 #define L2CR_L2SIZ_512KB 0x20000000 /* L2 size 512KB */ 684 #define L2CR_L2SIZ_1MB 0x30000000 /* L2 size 1MB */ 685 #define L2CR_L2CLK_MASK 0x0e000000 /* L2 clock mask */ 686 #define L2CR_L2CLK_DISABLED 0x00000000 /* L2 clock disabled */ 687 #define L2CR_L2CLK_DIV1 0x02000000 /* L2 clock / 1 */ 688 #define L2CR_L2CLK_DIV1_5 0x04000000 /* L2 clock / 1.5 */ 689 #define L2CR_L2CLK_DIV2 0x08000000 /* L2 clock / 2 */ 690 #define L2CR_L2CLK_DIV2_5 0x0a000000 /* L2 clock / 2.5 */ 691 #define L2CR_L2CLK_DIV3 0x0c000000 /* L2 clock / 3 */ 692 #define L2CR_L2RAM_MASK 0x01800000 /* L2 RAM type mask */ 693 #define L2CR_L2RAM_FLOW 0x00000000 /* L2 RAM flow through */ 694 #define L2CR_L2RAM_PIPE 0x01000000 /* L2 RAM pipelined */ 695 #define L2CR_L2RAM_PIPE_LW 0x01800000 /* L2 RAM pipelined latewr */ 696 #define L2CR_L2DO 0x00400000 /* L2 data only */ 697 #define L2CR_L2I 0x00200000 /* L2 global invalidate */ 698 #define L2CR_L2CTL 0x00100000 /* L2 RAM control */ 699 #define L2CR_L2WT 0x00080000 /* L2 write-through */ 700 #define L2CR_L2TS 0x00040000 /* L2 test support */ 701 #define L2CR_L2OH_MASK 0x00030000 /* L2 output hold mask */ 702 #define L2CR_L2OH_0_5 0x00000000 /* L2 output hold 0.5 ns */ 703 #define L2CR_L2OH_1_0 0x00010000 /* L2 output hold 1.0 ns */ 704 #define L2CR_L2SL 0x00008000 /* L2 DLL slow */ 705 #define L2CR_L2DF 0x00004000 /* L2 differential clock */ 706 #define L2CR_L2BYP 0x00002000 /* L2 DLL bypass */ 707 #define L2CR_L2IP 0x00000001 /* L2 GI in progress */ 708 #define L2CR_L2IO_745x 0x00100000 /* L2 instr. only (745x) */ 709 #define L2CR_L2DO_745x 0x00010000 /* L2 data only (745x) */ 710 #define L2CR_L2REP_745x 0x00001000 /* L2 repl. algorithm (745x) */ 711 #define L2CR_L2HWF_745x 0x00000800 /* L2 hardware flush (745x) */ 712 #define SPRN_L3CR 0x3FA /* Level 3 Cache Control Register */ 713 #define L3CR_L3E 0x80000000 /* L3 enable */ 714 #define L3CR_L3PE 0x40000000 /* L3 data parity enable */ 715 #define L3CR_L3APE 0x20000000 /* L3 addr parity enable */ 716 #define L3CR_L3SIZ 0x10000000 /* L3 size */ 717 #define L3CR_L3CLKEN 0x08000000 /* L3 clock enable */ 718 #define L3CR_L3RES 0x04000000 /* L3 special reserved bit */ 719 #define L3CR_L3CLKDIV 0x03800000 /* L3 clock divisor */ 720 #define L3CR_L3IO 0x00400000 /* L3 instruction only */ 721 #define L3CR_L3SPO 0x00040000 /* L3 sample point override */ 722 #define L3CR_L3CKSP 0x00030000 /* L3 clock sample point */ 723 #define L3CR_L3PSP 0x0000e000 /* L3 P-clock sample point */ 724 #define L3CR_L3REP 0x00001000 /* L3 replacement algorithm */ 725 #define L3CR_L3HWF 0x00000800 /* L3 hardware flush */ 726 #define L3CR_L3I 0x00000400 /* L3 global invalidate */ 727 #define L3CR_L3RT 0x00000300 /* L3 SRAM type */ 728 #define L3CR_L3NIRCA 0x00000080 /* L3 non-integer ratio clock adj. */ 729 #define L3CR_L3DO 0x00000040 /* L3 data only mode */ 730 #define L3CR_PMEN 0x00000004 /* L3 private memory enable */ 731 #define L3CR_PMSIZ 0x00000001 /* L3 private memory size */ 732 733 #define SPRN_MSSCR0 0x3f6 /* Memory Subsystem Control Register 0 */ 734 #define SPRN_MSSSR0 0x3f7 /* Memory Subsystem Status Register 1 */ 735 #define SPRN_LDSTCR 0x3f8 /* Load/Store control register */ 736 #define SPRN_LDSTDB 0x3f4 /* */ 737 #define SPRN_LR 0x008 /* Link Register */ 738 #ifndef SPRN_PIR 739 #define SPRN_PIR 0x3FF /* Processor Identification Register */ 740 #endif 741 #define SPRN_TIR 0x1BE /* Thread Identification Register */ 742 #define SPRN_PTCR 0x1D0 /* Partition table control Register */ 743 #define SPRN_PSPB 0x09F /* Problem State Priority Boost reg */ 744 #define SPRN_PTEHI 0x3D5 /* 981 7450 PTE HI word (S/W TLB load) */ 745 #define SPRN_PTELO 0x3D6 /* 982 7450 PTE LO word (S/W TLB load) */ 746 #define SPRN_PURR 0x135 /* Processor Utilization of Resources Reg */ 747 #define SPRN_PVR 0x11F /* Processor Version Register */ 748 #define SPRN_RPA 0x3D6 /* Required Physical Address Register */ 749 #define SPRN_SDA 0x3BF /* Sampled Data Address Register */ 750 #define SPRN_SDR1 0x019 /* MMU Hash Base Register */ 751 #define SPRN_ASR 0x118 /* Address Space Register */ 752 #define SPRN_SIA 0x3BB /* Sampled Instruction Address Register */ 753 #define SPRN_SPRG0 0x110 /* Special Purpose Register General 0 */ 754 #define SPRN_SPRG1 0x111 /* Special Purpose Register General 1 */ 755 #define SPRN_SPRG2 0x112 /* Special Purpose Register General 2 */ 756 #define SPRN_SPRG3 0x113 /* Special Purpose Register General 3 */ 757 #define SPRN_USPRG3 0x103 /* SPRG3 userspace read */ 758 #define SPRN_SPRG4 0x114 /* Special Purpose Register General 4 */ 759 #define SPRN_USPRG4 0x104 /* SPRG4 userspace read */ 760 #define SPRN_SPRG5 0x115 /* Special Purpose Register General 5 */ 761 #define SPRN_USPRG5 0x105 /* SPRG5 userspace read */ 762 #define SPRN_SPRG6 0x116 /* Special Purpose Register General 6 */ 763 #define SPRN_USPRG6 0x106 /* SPRG6 userspace read */ 764 #define SPRN_SPRG7 0x117 /* Special Purpose Register General 7 */ 765 #define SPRN_USPRG7 0x107 /* SPRG7 userspace read */ 766 #define SPRN_SRR0 0x01A /* Save/Restore Register 0 */ 767 #define SPRN_SRR1 0x01B /* Save/Restore Register 1 */ 768 769 #ifdef CONFIG_PPC_BOOK3S 770 /* 771 * Bits loaded from MSR upon interrupt. 772 * PPC (64-bit) bits 33-36,42-47 are interrupt dependent, the others are 773 * loaded from MSR. The exception is that SRESET and MCE do not always load 774 * bit 62 (RI) from MSR. Don't use PPC_BITMASK for this because 32-bit uses 775 * it. 776 */ 777 #define SRR1_MSR_BITS (~0x783f0000UL) 778 #endif 779 780 #define SRR1_ISI_NOPT 0x40000000 /* ISI: Not found in hash */ 781 #define SRR1_ISI_N_G_OR_CIP 0x10000000 /* ISI: Access is no-exec or G or CI for a prefixed instruction */ 782 #define SRR1_ISI_PROT 0x08000000 /* ISI: Other protection fault */ 783 #define SRR1_WAKEMASK 0x00380000 /* reason for wakeup */ 784 #define SRR1_WAKEMASK_P8 0x003c0000 /* reason for wakeup on POWER8 and 9 */ 785 #define SRR1_WAKEMCE_RESVD 0x003c0000 /* Unused/reserved value used by MCE wakeup to indicate cause to idle wakeup handler */ 786 #define SRR1_WAKESYSERR 0x00300000 /* System error */ 787 #define SRR1_WAKEEE 0x00200000 /* External interrupt */ 788 #define SRR1_WAKEHVI 0x00240000 /* Hypervisor Virtualization Interrupt (P9) */ 789 #define SRR1_WAKEMT 0x00280000 /* mtctrl */ 790 #define SRR1_WAKEHMI 0x00280000 /* Hypervisor maintenance */ 791 #define SRR1_WAKEDEC 0x00180000 /* Decrementer interrupt */ 792 #define SRR1_WAKEDBELL 0x00140000 /* Privileged doorbell on P8 */ 793 #define SRR1_WAKETHERM 0x00100000 /* Thermal management interrupt */ 794 #define SRR1_WAKERESET 0x00100000 /* System reset */ 795 #define SRR1_WAKEHDBELL 0x000c0000 /* Hypervisor doorbell on P8 */ 796 #define SRR1_WAKESTATE 0x00030000 /* Powersave exit mask [46:47] */ 797 #define SRR1_WS_HVLOSS 0x00030000 /* HV resources not maintained */ 798 #define SRR1_WS_GPRLOSS 0x00020000 /* GPRs not maintained */ 799 #define SRR1_WS_NOLOSS 0x00010000 /* All resources maintained */ 800 #define SRR1_PROGTM 0x00200000 /* TM Bad Thing */ 801 #define SRR1_PROGFPE 0x00100000 /* Floating Point Enabled */ 802 #define SRR1_PROGILL 0x00080000 /* Illegal instruction */ 803 #define SRR1_PROGPRIV 0x00040000 /* Privileged instruction */ 804 #define SRR1_PROGTRAP 0x00020000 /* Trap */ 805 #define SRR1_PROGADDR 0x00010000 /* SRR0 contains subsequent addr */ 806 807 #define SRR1_MCE_MCP 0x00080000 /* Machine check signal caused interrupt */ 808 #define SRR1_BOUNDARY 0x10000000 /* Prefixed instruction crosses 64-byte boundary */ 809 #define SRR1_PREFIXED 0x20000000 /* Exception caused by prefixed instruction */ 810 811 #define SPRN_HSRR0 0x13A /* Save/Restore Register 0 */ 812 #define SPRN_HSRR1 0x13B /* Save/Restore Register 1 */ 813 #define HSRR1_DENORM 0x00100000 /* Denorm exception */ 814 #define HSRR1_HISI_WRITE 0x00010000 /* HISI bcs couldn't update mem */ 815 816 #define SPRN_TBCTL 0x35f /* PA6T Timebase control register */ 817 #define TBCTL_FREEZE 0x0000000000000000ull /* Freeze all tbs */ 818 #define TBCTL_RESTART 0x0000000100000000ull /* Restart all tbs */ 819 #define TBCTL_UPDATE_UPPER 0x0000000200000000ull /* Set upper 32 bits */ 820 #define TBCTL_UPDATE_LOWER 0x0000000300000000ull /* Set lower 32 bits */ 821 822 #ifndef SPRN_SVR 823 #define SPRN_SVR 0x11E /* System Version Register */ 824 #endif 825 #define SPRN_THRM1 0x3FC /* Thermal Management Register 1 */ 826 /* these bits were defined in inverted endian sense originally, ugh, confusing */ 827 #define THRM1_TIN (1 << 31) 828 #define THRM1_TIV (1 << 30) 829 #define THRM1_THRES(x) ((x&0x7f)<<23) 830 #define THRM3_SITV(x) ((x & 0x1fff) << 1) 831 #define THRM1_TID (1<<2) 832 #define THRM1_TIE (1<<1) 833 #define THRM1_V (1<<0) 834 #define SPRN_THRM2 0x3FD /* Thermal Management Register 2 */ 835 #define SPRN_THRM3 0x3FE /* Thermal Management Register 3 */ 836 #define THRM3_E (1<<0) 837 #define SPRN_TLBMISS 0x3D4 /* 980 7450 TLB Miss Register */ 838 #define SPRN_UMMCR0 0x3A8 /* User Monitor Mode Control Register 0 */ 839 #define SPRN_UMMCR1 0x3AC /* User Monitor Mode Control Register 0 */ 840 #define SPRN_UPMC1 0x3A9 /* User Performance Counter Register 1 */ 841 #define SPRN_UPMC2 0x3AA /* User Performance Counter Register 2 */ 842 #define SPRN_UPMC3 0x3AD /* User Performance Counter Register 3 */ 843 #define SPRN_UPMC4 0x3AE /* User Performance Counter Register 4 */ 844 #define SPRN_USIA 0x3AB /* User Sampled Instruction Address Register */ 845 #define SPRN_VRSAVE 0x100 /* Vector Register Save Register */ 846 #define SPRN_XER 0x001 /* Fixed Point Exception Register */ 847 848 #define SPRN_MMCR0_GEKKO 0x3B8 /* Gekko Monitor Mode Control Register 0 */ 849 #define SPRN_MMCR1_GEKKO 0x3BC /* Gekko Monitor Mode Control Register 1 */ 850 #define SPRN_PMC1_GEKKO 0x3B9 /* Gekko Performance Monitor Control 1 */ 851 #define SPRN_PMC2_GEKKO 0x3BA /* Gekko Performance Monitor Control 2 */ 852 #define SPRN_PMC3_GEKKO 0x3BD /* Gekko Performance Monitor Control 3 */ 853 #define SPRN_PMC4_GEKKO 0x3BE /* Gekko Performance Monitor Control 4 */ 854 #define SPRN_WPAR_GEKKO 0x399 /* Gekko Write Pipe Address Register */ 855 856 #define SPRN_SCOMC 0x114 /* SCOM Access Control */ 857 #define SPRN_SCOMD 0x115 /* SCOM Access DATA */ 858 859 /* Performance monitor SPRs */ 860 #ifdef CONFIG_PPC64 861 #define SPRN_MMCR0 795 862 #define MMCR0_FC 0x80000000UL /* freeze counters */ 863 #define MMCR0_FCS 0x40000000UL /* freeze in supervisor state */ 864 #define MMCR0_KERNEL_DISABLE MMCR0_FCS 865 #define MMCR0_FCP 0x20000000UL /* freeze in problem state */ 866 #define MMCR0_PROBLEM_DISABLE MMCR0_FCP 867 #define MMCR0_FCM1 0x10000000UL /* freeze counters while MSR mark = 1 */ 868 #define MMCR0_FCM0 0x08000000UL /* freeze counters while MSR mark = 0 */ 869 #define MMCR0_PMXE ASM_CONST(0x04000000) /* perf mon exception enable */ 870 #define MMCR0_FCECE ASM_CONST(0x02000000) /* freeze ctrs on enabled cond or event */ 871 #define MMCR0_TBEE 0x00400000UL /* time base exception enable */ 872 #define MMCR0_BHRBA 0x00200000UL /* BHRB Access allowed in userspace */ 873 #define MMCR0_EBE 0x00100000UL /* Event based branch enable */ 874 #define MMCR0_PMCC 0x000c0000UL /* PMC control */ 875 #define MMCR0_PMCCEXT ASM_CONST(0x00000200) /* PMCCEXT control */ 876 #define MMCR0_PMCC_U6 0x00080000UL /* PMC1-6 are R/W by user (PR) */ 877 #define MMCR0_PMC1CE 0x00008000UL /* PMC1 count enable*/ 878 #define MMCR0_PMCjCE ASM_CONST(0x00004000) /* PMCj count enable*/ 879 #define MMCR0_TRIGGER 0x00002000UL /* TRIGGER enable */ 880 #define MMCR0_PMAO_SYNC ASM_CONST(0x00000800) /* PMU intr is synchronous */ 881 #define MMCR0_C56RUN ASM_CONST(0x00000100) /* PMC5/6 count when RUN=0 */ 882 /* performance monitor alert has occurred, set to 0 after handling exception */ 883 #define MMCR0_PMAO ASM_CONST(0x00000080) 884 #define MMCR0_SHRFC 0x00000040UL /* SHRre freeze conditions between threads */ 885 #define MMCR0_FC56 0x00000010UL /* freeze counters 5 and 6 */ 886 #define MMCR0_FCTI 0x00000008UL /* freeze counters in tags inactive mode */ 887 #define MMCR0_FCTA 0x00000004UL /* freeze counters in tags active mode */ 888 #define MMCR0_FCWAIT 0x00000002UL /* freeze counter in WAIT state */ 889 #define MMCR0_FCHV 0x00000001UL /* freeze conditions in hypervisor mode */ 890 #define SPRN_MMCR1 798 891 #define SPRN_MMCR2 785 892 #define SPRN_MMCR3 754 893 #define SPRN_UMMCR2 769 894 #define SPRN_UMMCR3 738 895 #define SPRN_MMCRA 0x312 896 #define MMCRA_SDSYNC 0x80000000UL /* SDAR synced with SIAR */ 897 #define MMCRA_SDAR_DCACHE_MISS 0x40000000UL 898 #define MMCRA_SDAR_ERAT_MISS 0x20000000UL 899 #define MMCRA_SIHV 0x10000000UL /* state of MSR HV when SIAR set */ 900 #define MMCRA_SIPR 0x08000000UL /* state of MSR PR when SIAR set */ 901 #define MMCRA_SLOT 0x07000000UL /* SLOT bits (37-39) */ 902 #define MMCRA_SLOT_SHIFT 24 903 #define MMCRA_SAMPLE_ENABLE 0x00000001UL /* enable sampling */ 904 #define MMCRA_BHRB_DISABLE _UL(0x2000000000) // BHRB disable bit for ISA v3.1 905 #define POWER6_MMCRA_SDSYNC 0x0000080000000000ULL /* SDAR/SIAR synced */ 906 #define POWER6_MMCRA_SIHV 0x0000040000000000ULL 907 #define POWER6_MMCRA_SIPR 0x0000020000000000ULL 908 #define POWER6_MMCRA_THRM 0x00000020UL 909 #define POWER6_MMCRA_OTHER 0x0000000EUL 910 911 #define POWER7P_MMCRA_SIAR_VALID 0x10000000 /* P7+ SIAR contents valid */ 912 #define POWER7P_MMCRA_SDAR_VALID 0x08000000 /* P7+ SDAR contents valid */ 913 914 #define SPRN_MMCRH 316 /* Hypervisor monitor mode control register */ 915 #define SPRN_MMCRS 894 /* Supervisor monitor mode control register */ 916 #define SPRN_MMCRC 851 /* Core monitor mode control register */ 917 #define SPRN_EBBHR 804 /* Event based branch handler register */ 918 #define SPRN_EBBRR 805 /* Event based branch return register */ 919 #define SPRN_BESCR 806 /* Branch event status and control register */ 920 #define BESCR_GE 0x8000000000000000ULL /* Global Enable */ 921 #define SPRN_WORT 895 /* Workload optimization register - thread */ 922 #define SPRN_WORC 863 /* Workload optimization register - core */ 923 924 #define SPRN_PMC1 787 925 #define SPRN_PMC2 788 926 #define SPRN_PMC3 789 927 #define SPRN_PMC4 790 928 #define SPRN_PMC5 791 929 #define SPRN_PMC6 792 930 #define SPRN_PMC7 793 931 #define SPRN_PMC8 794 932 #define SPRN_SIER 784 933 #define SIER_SIPR 0x2000000 /* Sampled MSR_PR */ 934 #define SIER_SIHV 0x1000000 /* Sampled MSR_HV */ 935 #define SIER_SIAR_VALID 0x0400000 /* SIAR contents valid */ 936 #define SIER_SDAR_VALID 0x0200000 /* SDAR contents valid */ 937 #define SPRN_SIER2 752 938 #define SPRN_SIER3 753 939 #define SPRN_USIER2 736 940 #define SPRN_USIER3 737 941 #define SPRN_SIAR 796 942 #define SPRN_SDAR 797 943 #define SPRN_TACR 888 944 #define SPRN_TCSCR 889 945 #define SPRN_CSIGR 890 946 #define SPRN_SPMC1 892 947 #define SPRN_SPMC2 893 948 949 /* When EBB is enabled, some of MMCR0/MMCR2/SIER are user accessible */ 950 #define MMCR0_USER_MASK (MMCR0_FC | MMCR0_PMXE | MMCR0_PMAO) 951 #define MMCR2_USER_MASK 0x4020100804020000UL /* (FC1P|FC2P|FC3P|FC4P|FC5P|FC6P) */ 952 #define SIER_USER_MASK 0x7fffffUL 953 954 #define SPRN_PA6T_MMCR0 795 955 #define PA6T_MMCR0_EN0 0x0000000000000001UL 956 #define PA6T_MMCR0_EN1 0x0000000000000002UL 957 #define PA6T_MMCR0_EN2 0x0000000000000004UL 958 #define PA6T_MMCR0_EN3 0x0000000000000008UL 959 #define PA6T_MMCR0_EN4 0x0000000000000010UL 960 #define PA6T_MMCR0_EN5 0x0000000000000020UL 961 #define PA6T_MMCR0_SUPEN 0x0000000000000040UL 962 #define PA6T_MMCR0_PREN 0x0000000000000080UL 963 #define PA6T_MMCR0_HYPEN 0x0000000000000100UL 964 #define PA6T_MMCR0_FCM0 0x0000000000000200UL 965 #define PA6T_MMCR0_FCM1 0x0000000000000400UL 966 #define PA6T_MMCR0_INTGEN 0x0000000000000800UL 967 #define PA6T_MMCR0_INTEN0 0x0000000000001000UL 968 #define PA6T_MMCR0_INTEN1 0x0000000000002000UL 969 #define PA6T_MMCR0_INTEN2 0x0000000000004000UL 970 #define PA6T_MMCR0_INTEN3 0x0000000000008000UL 971 #define PA6T_MMCR0_INTEN4 0x0000000000010000UL 972 #define PA6T_MMCR0_INTEN5 0x0000000000020000UL 973 #define PA6T_MMCR0_DISCNT 0x0000000000040000UL 974 #define PA6T_MMCR0_UOP 0x0000000000080000UL 975 #define PA6T_MMCR0_TRG 0x0000000000100000UL 976 #define PA6T_MMCR0_TRGEN 0x0000000000200000UL 977 #define PA6T_MMCR0_TRGREG 0x0000000001600000UL 978 #define PA6T_MMCR0_SIARLOG 0x0000000002000000UL 979 #define PA6T_MMCR0_SDARLOG 0x0000000004000000UL 980 #define PA6T_MMCR0_PROEN 0x0000000008000000UL 981 #define PA6T_MMCR0_PROLOG 0x0000000010000000UL 982 #define PA6T_MMCR0_DAMEN2 0x0000000020000000UL 983 #define PA6T_MMCR0_DAMEN3 0x0000000040000000UL 984 #define PA6T_MMCR0_DAMEN4 0x0000000080000000UL 985 #define PA6T_MMCR0_DAMEN5 0x0000000100000000UL 986 #define PA6T_MMCR0_DAMSEL2 0x0000000200000000UL 987 #define PA6T_MMCR0_DAMSEL3 0x0000000400000000UL 988 #define PA6T_MMCR0_DAMSEL4 0x0000000800000000UL 989 #define PA6T_MMCR0_DAMSEL5 0x0000001000000000UL 990 #define PA6T_MMCR0_HANDDIS 0x0000002000000000UL 991 #define PA6T_MMCR0_PCTEN 0x0000004000000000UL 992 #define PA6T_MMCR0_SOCEN 0x0000008000000000UL 993 #define PA6T_MMCR0_SOCMOD 0x0000010000000000UL 994 995 #define SPRN_PA6T_MMCR1 798 996 #define PA6T_MMCR1_ES2 0x00000000000000ffUL 997 #define PA6T_MMCR1_ES3 0x000000000000ff00UL 998 #define PA6T_MMCR1_ES4 0x0000000000ff0000UL 999 #define PA6T_MMCR1_ES5 0x00000000ff000000UL 1000 1001 #define SPRN_PA6T_UPMC0 771 /* User PerfMon Counter 0 */ 1002 #define SPRN_PA6T_UPMC1 772 /* ... */ 1003 #define SPRN_PA6T_UPMC2 773 1004 #define SPRN_PA6T_UPMC3 774 1005 #define SPRN_PA6T_UPMC4 775 1006 #define SPRN_PA6T_UPMC5 776 1007 #define SPRN_PA6T_UMMCR0 779 /* User Monitor Mode Control Register 0 */ 1008 #define SPRN_PA6T_SIAR 780 /* Sampled Instruction Address */ 1009 #define SPRN_PA6T_UMMCR1 782 /* User Monitor Mode Control Register 1 */ 1010 #define SPRN_PA6T_SIER 785 /* Sampled Instruction Event Register */ 1011 #define SPRN_PA6T_PMC0 787 1012 #define SPRN_PA6T_PMC1 788 1013 #define SPRN_PA6T_PMC2 789 1014 #define SPRN_PA6T_PMC3 790 1015 #define SPRN_PA6T_PMC4 791 1016 #define SPRN_PA6T_PMC5 792 1017 #define SPRN_PA6T_TSR0 793 /* Timestamp Register 0 */ 1018 #define SPRN_PA6T_TSR1 794 /* Timestamp Register 1 */ 1019 #define SPRN_PA6T_TSR2 799 /* Timestamp Register 2 */ 1020 #define SPRN_PA6T_TSR3 784 /* Timestamp Register 3 */ 1021 1022 #define SPRN_PA6T_IER 981 /* Icache Error Register */ 1023 #define SPRN_PA6T_DER 982 /* Dcache Error Register */ 1024 #define SPRN_PA6T_BER 862 /* BIU Error Address Register */ 1025 #define SPRN_PA6T_MER 849 /* MMU Error Register */ 1026 1027 #define SPRN_PA6T_IMA0 880 /* Instruction Match Array 0 */ 1028 #define SPRN_PA6T_IMA1 881 /* ... */ 1029 #define SPRN_PA6T_IMA2 882 1030 #define SPRN_PA6T_IMA3 883 1031 #define SPRN_PA6T_IMA4 884 1032 #define SPRN_PA6T_IMA5 885 1033 #define SPRN_PA6T_IMA6 886 1034 #define SPRN_PA6T_IMA7 887 1035 #define SPRN_PA6T_IMA8 888 1036 #define SPRN_PA6T_IMA9 889 1037 #define SPRN_PA6T_BTCR 978 /* Breakpoint and Tagging Control Register */ 1038 #define SPRN_PA6T_IMAAT 979 /* Instruction Match Array Action Table */ 1039 #define SPRN_PA6T_PCCR 1019 /* Power Counter Control Register */ 1040 #define SPRN_BKMK 1020 /* Cell Bookmark Register */ 1041 #define SPRN_PA6T_RPCCR 1021 /* Retire PC Trace Control Register */ 1042 1043 1044 #else /* 32-bit */ 1045 #define SPRN_MMCR0 952 /* Monitor Mode Control Register 0 */ 1046 #define MMCR0_FC 0x80000000UL /* freeze counters */ 1047 #define MMCR0_FCS 0x40000000UL /* freeze in supervisor state */ 1048 #define MMCR0_FCP 0x20000000UL /* freeze in problem state */ 1049 #define MMCR0_FCM1 0x10000000UL /* freeze counters while MSR mark = 1 */ 1050 #define MMCR0_FCM0 0x08000000UL /* freeze counters while MSR mark = 0 */ 1051 #define MMCR0_PMXE 0x04000000UL /* performance monitor exception enable */ 1052 #define MMCR0_FCECE 0x02000000UL /* freeze ctrs on enabled cond or event */ 1053 #define MMCR0_TBEE 0x00400000UL /* time base exception enable */ 1054 #define MMCR0_PMC1CE 0x00008000UL /* PMC1 count enable*/ 1055 #define MMCR0_PMCnCE 0x00004000UL /* count enable for all but PMC 1*/ 1056 #define MMCR0_TRIGGER 0x00002000UL /* TRIGGER enable */ 1057 #define MMCR0_PMC1SEL 0x00001fc0UL /* PMC 1 Event */ 1058 #define MMCR0_PMC2SEL 0x0000003fUL /* PMC 2 Event */ 1059 1060 #define SPRN_MMCR1 956 1061 #define MMCR1_PMC3SEL 0xf8000000UL /* PMC 3 Event */ 1062 #define MMCR1_PMC4SEL 0x07c00000UL /* PMC 4 Event */ 1063 #define MMCR1_PMC5SEL 0x003e0000UL /* PMC 5 Event */ 1064 #define MMCR1_PMC6SEL 0x0001f800UL /* PMC 6 Event */ 1065 #define SPRN_MMCR2 944 1066 #define SPRN_PMC1 953 /* Performance Counter Register 1 */ 1067 #define SPRN_PMC2 954 /* Performance Counter Register 2 */ 1068 #define SPRN_PMC3 957 /* Performance Counter Register 3 */ 1069 #define SPRN_PMC4 958 /* Performance Counter Register 4 */ 1070 #define SPRN_PMC5 945 /* Performance Counter Register 5 */ 1071 #define SPRN_PMC6 946 /* Performance Counter Register 6 */ 1072 1073 #define SPRN_SIAR 955 /* Sampled Instruction Address Register */ 1074 1075 /* Bit definitions for MMCR0 and PMC1 / PMC2. */ 1076 #define MMCR0_PMC1_CYCLES (1 << 7) 1077 #define MMCR0_PMC1_ICACHEMISS (5 << 7) 1078 #define MMCR0_PMC1_DTLB (6 << 7) 1079 #define MMCR0_PMC2_DCACHEMISS 0x6 1080 #define MMCR0_PMC2_CYCLES 0x1 1081 #define MMCR0_PMC2_ITLB 0x7 1082 #define MMCR0_PMC2_LOADMISSTIME 0x5 1083 #endif 1084 1085 /* 1086 * SPRG usage: 1087 * 1088 * All 64-bit: 1089 * - SPRG1 stores PACA pointer except 64-bit server in 1090 * HV mode in which case it is HSPRG0 1091 * 1092 * 64-bit server: 1093 * - SPRG0 scratch for TM recheckpoint/reclaim (reserved for HV on Power4) 1094 * - SPRG2 scratch for exception vectors 1095 * - SPRG3 CPU and NUMA node for VDSO getcpu (user visible) 1096 * - HSPRG0 stores PACA in HV mode 1097 * - HSPRG1 scratch for "HV" exceptions 1098 * 1099 * 64-bit embedded 1100 * - SPRG0 generic exception scratch 1101 * - SPRG2 TLB exception stack 1102 * - SPRG3 critical exception scratch (user visible, sorry!) 1103 * - SPRG4 unused (user visible) 1104 * - SPRG6 TLB miss scratch (user visible, sorry !) 1105 * - SPRG7 CPU and NUMA node for VDSO getcpu (user visible) 1106 * - SPRG8 machine check exception scratch 1107 * - SPRG9 debug exception scratch 1108 * 1109 * All 32-bit: 1110 * - SPRG3 current thread_struct physical addr pointer 1111 * (virtual on BookE, physical on others) 1112 * 1113 * 32-bit classic: 1114 * - SPRG0 scratch for exception vectors 1115 * - SPRG1 scratch for exception vectors 1116 * - SPRG2 indicator that we are in RTAS 1117 * - SPRG4 (603 only) pseudo TLB LRU data 1118 * 1119 * 32-bit 40x: 1120 * - SPRG0 scratch for exception vectors 1121 * - SPRG1 scratch for exception vectors 1122 * - SPRG2 scratch for exception vectors 1123 * - SPRG4 scratch for exception vectors (not 403) 1124 * - SPRG5 scratch for exception vectors (not 403) 1125 * - SPRG6 scratch for exception vectors (not 403) 1126 * - SPRG7 scratch for exception vectors (not 403) 1127 * 1128 * 32-bit 440 and FSL BookE: 1129 * - SPRG0 scratch for exception vectors 1130 * - SPRG1 scratch for exception vectors (*) 1131 * - SPRG2 scratch for crit interrupts handler 1132 * - SPRG4 scratch for exception vectors 1133 * - SPRG5 scratch for exception vectors 1134 * - SPRG6 scratch for machine check handler 1135 * - SPRG7 scratch for exception vectors 1136 * - SPRG9 scratch for debug vectors (e500 only) 1137 * 1138 * Additionally, BookE separates "read" and "write" 1139 * of those registers. That allows to use the userspace 1140 * readable variant for reads, which can avoid a fault 1141 * with KVM type virtualization. 1142 * 1143 * 32-bit 8xx: 1144 * - SPRG0 scratch for exception vectors 1145 * - SPRG1 scratch for exception vectors 1146 * - SPRG2 scratch for exception vectors 1147 * 1148 */ 1149 #ifdef CONFIG_PPC64 1150 #define SPRN_SPRG_PACA SPRN_SPRG1 1151 #else 1152 #define SPRN_SPRG_THREAD SPRN_SPRG3 1153 #endif 1154 1155 #ifdef CONFIG_PPC_BOOK3S_64 1156 #define SPRN_SPRG_SCRATCH0 SPRN_SPRG2 1157 #define SPRN_SPRG_HPACA SPRN_HSPRG0 1158 #define SPRN_SPRG_HSCRATCH0 SPRN_HSPRG1 1159 #define SPRN_SPRG_VDSO_READ SPRN_USPRG3 1160 #define SPRN_SPRG_VDSO_WRITE SPRN_SPRG3 1161 1162 #define GET_PACA(rX) \ 1163 BEGIN_FTR_SECTION_NESTED(66); \ 1164 mfspr rX,SPRN_SPRG_PACA; \ 1165 FTR_SECTION_ELSE_NESTED(66); \ 1166 mfspr rX,SPRN_SPRG_HPACA; \ 1167 ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_HVMODE, 66) 1168 1169 #define SET_PACA(rX) \ 1170 BEGIN_FTR_SECTION_NESTED(66); \ 1171 mtspr SPRN_SPRG_PACA,rX; \ 1172 FTR_SECTION_ELSE_NESTED(66); \ 1173 mtspr SPRN_SPRG_HPACA,rX; \ 1174 ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_HVMODE, 66) 1175 1176 #define GET_SCRATCH0(rX) \ 1177 BEGIN_FTR_SECTION_NESTED(66); \ 1178 mfspr rX,SPRN_SPRG_SCRATCH0; \ 1179 FTR_SECTION_ELSE_NESTED(66); \ 1180 mfspr rX,SPRN_SPRG_HSCRATCH0; \ 1181 ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_HVMODE, 66) 1182 1183 #define SET_SCRATCH0(rX) \ 1184 BEGIN_FTR_SECTION_NESTED(66); \ 1185 mtspr SPRN_SPRG_SCRATCH0,rX; \ 1186 FTR_SECTION_ELSE_NESTED(66); \ 1187 mtspr SPRN_SPRG_HSCRATCH0,rX; \ 1188 ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_HVMODE, 66) 1189 1190 #else /* CONFIG_PPC_BOOK3S_64 */ 1191 #define GET_SCRATCH0(rX) mfspr rX,SPRN_SPRG_SCRATCH0 1192 #define SET_SCRATCH0(rX) mtspr SPRN_SPRG_SCRATCH0,rX 1193 1194 #endif 1195 1196 #ifdef CONFIG_PPC_BOOK3E_64 1197 #define SPRN_SPRG_MC_SCRATCH SPRN_SPRG8 1198 #define SPRN_SPRG_CRIT_SCRATCH SPRN_SPRG3 1199 #define SPRN_SPRG_DBG_SCRATCH SPRN_SPRG9 1200 #define SPRN_SPRG_TLB_EXFRAME SPRN_SPRG2 1201 #define SPRN_SPRG_TLB_SCRATCH SPRN_SPRG6 1202 #define SPRN_SPRG_GEN_SCRATCH SPRN_SPRG0 1203 #define SPRN_SPRG_GDBELL_SCRATCH SPRN_SPRG_GEN_SCRATCH 1204 #define SPRN_SPRG_VDSO_READ SPRN_USPRG7 1205 #define SPRN_SPRG_VDSO_WRITE SPRN_SPRG7 1206 1207 #define SET_PACA(rX) mtspr SPRN_SPRG_PACA,rX 1208 #define GET_PACA(rX) mfspr rX,SPRN_SPRG_PACA 1209 1210 #endif 1211 1212 #ifdef CONFIG_PPC_BOOK3S_32 1213 #define SPRN_SPRG_SCRATCH0 SPRN_SPRG0 1214 #define SPRN_SPRG_SCRATCH1 SPRN_SPRG1 1215 #define SPRN_SPRG_SCRATCH2 SPRN_SPRG2 1216 #define SPRN_SPRG_603_LRU SPRN_SPRG4 1217 #endif 1218 1219 #ifdef CONFIG_40x 1220 #define SPRN_SPRG_SCRATCH0 SPRN_SPRG0 1221 #define SPRN_SPRG_SCRATCH1 SPRN_SPRG1 1222 #define SPRN_SPRG_SCRATCH2 SPRN_SPRG2 1223 #define SPRN_SPRG_SCRATCH3 SPRN_SPRG4 1224 #define SPRN_SPRG_SCRATCH4 SPRN_SPRG5 1225 #define SPRN_SPRG_SCRATCH5 SPRN_SPRG6 1226 #define SPRN_SPRG_SCRATCH6 SPRN_SPRG7 1227 #endif 1228 1229 #ifdef CONFIG_BOOKE 1230 #define SPRN_SPRG_RSCRATCH0 SPRN_SPRG0 1231 #define SPRN_SPRG_WSCRATCH0 SPRN_SPRG0 1232 #define SPRN_SPRG_RSCRATCH1 SPRN_SPRG1 1233 #define SPRN_SPRG_WSCRATCH1 SPRN_SPRG1 1234 #define SPRN_SPRG_RSCRATCH_CRIT SPRN_SPRG2 1235 #define SPRN_SPRG_WSCRATCH_CRIT SPRN_SPRG2 1236 #define SPRN_SPRG_RSCRATCH2 SPRN_SPRG4R 1237 #define SPRN_SPRG_WSCRATCH2 SPRN_SPRG4W 1238 #define SPRN_SPRG_RSCRATCH3 SPRN_SPRG5R 1239 #define SPRN_SPRG_WSCRATCH3 SPRN_SPRG5W 1240 #define SPRN_SPRG_RSCRATCH_MC SPRN_SPRG1 1241 #define SPRN_SPRG_WSCRATCH_MC SPRN_SPRG1 1242 #define SPRN_SPRG_RSCRATCH4 SPRN_SPRG7R 1243 #define SPRN_SPRG_WSCRATCH4 SPRN_SPRG7W 1244 #define SPRN_SPRG_RSCRATCH_DBG SPRN_SPRG9 1245 #define SPRN_SPRG_WSCRATCH_DBG SPRN_SPRG9 1246 #endif 1247 1248 #ifdef CONFIG_PPC_8xx 1249 #define SPRN_SPRG_SCRATCH0 SPRN_SPRG0 1250 #define SPRN_SPRG_SCRATCH1 SPRN_SPRG1 1251 #define SPRN_SPRG_SCRATCH2 SPRN_SPRG2 1252 #endif 1253 1254 1255 1256 /* 1257 * An mtfsf instruction with the L bit set. On CPUs that support this a 1258 * full 64bits of FPSCR is restored and on other CPUs the L bit is ignored. 1259 * 1260 * Until binutils gets the new form of mtfsf, hardwire the instruction. 1261 */ 1262 #ifdef CONFIG_PPC64 1263 #define MTFSF_L(REG) \ 1264 .long (0xfc00058e | ((0xff) << 17) | ((REG) << 11) | (1 << 25)) 1265 #else 1266 #define MTFSF_L(REG) mtfsf 0xff, (REG) 1267 #endif 1268 1269 /* Processor Version Register (PVR) field extraction */ 1270 1271 #define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */ 1272 #define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revison field */ 1273 1274 #define pvr_version_is(pvr) (PVR_VER(mfspr(SPRN_PVR)) == (pvr)) 1275 1276 /* 1277 * IBM has further subdivided the standard PowerPC 16-bit version and 1278 * revision subfields of the PVR for the PowerPC 403s into the following: 1279 */ 1280 1281 #define PVR_FAM(pvr) (((pvr) >> 20) & 0xFFF) /* Family field */ 1282 #define PVR_MEM(pvr) (((pvr) >> 16) & 0xF) /* Member field */ 1283 #define PVR_CORE(pvr) (((pvr) >> 12) & 0xF) /* Core field */ 1284 #define PVR_CFG(pvr) (((pvr) >> 8) & 0xF) /* Configuration field */ 1285 #define PVR_MAJ(pvr) (((pvr) >> 4) & 0xF) /* Major revision field */ 1286 #define PVR_MIN(pvr) (((pvr) >> 0) & 0xF) /* Minor revision field */ 1287 1288 /* Processor Version Numbers */ 1289 1290 #define PVR_403GA 0x00200000 1291 #define PVR_403GB 0x00200100 1292 #define PVR_403GC 0x00200200 1293 #define PVR_403GCX 0x00201400 1294 #define PVR_405GP 0x40110000 1295 #define PVR_476 0x11a52000 1296 #define PVR_476FPE 0x7ff50000 1297 #define PVR_STB03XXX 0x40310000 1298 #define PVR_NP405H 0x41410000 1299 #define PVR_NP405L 0x41610000 1300 #define PVR_601 0x00010000 1301 #define PVR_602 0x00050000 1302 #define PVR_603 0x00030000 1303 #define PVR_603e 0x00060000 1304 #define PVR_603ev 0x00070000 1305 #define PVR_603r 0x00071000 1306 #define PVR_604 0x00040000 1307 #define PVR_604e 0x00090000 1308 #define PVR_604r 0x000A0000 1309 #define PVR_620 0x00140000 1310 #define PVR_740 0x00080000 1311 #define PVR_750 PVR_740 1312 #define PVR_740P 0x10080000 1313 #define PVR_750P PVR_740P 1314 #define PVR_7400 0x000C0000 1315 #define PVR_7410 0x800C0000 1316 #define PVR_7450 0x80000000 1317 #define PVR_8540 0x80200000 1318 #define PVR_8560 0x80200000 1319 #define PVR_VER_E500V1 0x8020 1320 #define PVR_VER_E500V2 0x8021 1321 #define PVR_VER_E500MC 0x8023 1322 #define PVR_VER_E5500 0x8024 1323 #define PVR_VER_E6500 0x8040 1324 #define PVR_VER_7450 0x8000 1325 #define PVR_VER_7455 0x8001 1326 #define PVR_VER_7447 0x8002 1327 #define PVR_VER_7447A 0x8003 1328 #define PVR_VER_7448 0x8004 1329 1330 /* 1331 * For the 8xx processors, all of them report the same PVR family for 1332 * the PowerPC core. The various versions of these processors must be 1333 * differentiated by the version number in the Communication Processor 1334 * Module (CPM). 1335 */ 1336 #define PVR_8xx 0x00500000 1337 1338 #define PVR_8240 0x00810100 1339 #define PVR_8245 0x80811014 1340 #define PVR_8260 PVR_8240 1341 1342 /* 476 Simulator seems to currently have the PVR of the 602... */ 1343 #define PVR_476_ISS 0x00052000 1344 1345 /* 64-bit processors */ 1346 #define PVR_NORTHSTAR 0x0033 1347 #define PVR_PULSAR 0x0034 1348 #define PVR_POWER4 0x0035 1349 #define PVR_ICESTAR 0x0036 1350 #define PVR_SSTAR 0x0037 1351 #define PVR_POWER4p 0x0038 1352 #define PVR_970 0x0039 1353 #define PVR_POWER5 0x003A 1354 #define PVR_POWER5p 0x003B 1355 #define PVR_970FX 0x003C 1356 #define PVR_POWER6 0x003E 1357 #define PVR_POWER7 0x003F 1358 #define PVR_630 0x0040 1359 #define PVR_630p 0x0041 1360 #define PVR_970MP 0x0044 1361 #define PVR_970GX 0x0045 1362 #define PVR_POWER7p 0x004A 1363 #define PVR_POWER8E 0x004B 1364 #define PVR_POWER8NVL 0x004C 1365 #define PVR_POWER8 0x004D 1366 #define PVR_POWER9 0x004E 1367 #define PVR_POWER10 0x0080 1368 #define PVR_BE 0x0070 1369 #define PVR_PA6T 0x0090 1370 1371 /* "Logical" PVR values defined in PAPR, representing architecture levels */ 1372 #define PVR_ARCH_204 0x0f000001 1373 #define PVR_ARCH_205 0x0f000002 1374 #define PVR_ARCH_206 0x0f000003 1375 #define PVR_ARCH_206p 0x0f100003 1376 #define PVR_ARCH_207 0x0f000004 1377 #define PVR_ARCH_300 0x0f000005 1378 #define PVR_ARCH_31 0x0f000006 1379 1380 /* Macros for setting and retrieving special purpose registers */ 1381 #ifndef __ASSEMBLY__ 1382 1383 #if defined(CONFIG_PPC64) || defined(__CHECKER__) 1384 typedef struct { 1385 u32 val; 1386 #ifdef CONFIG_PPC64 1387 u32 suffix; 1388 #endif 1389 } __packed ppc_inst_t; 1390 #else 1391 typedef u32 ppc_inst_t; 1392 #endif 1393 1394 #define mfmsr() ({unsigned long rval; \ 1395 asm volatile("mfmsr %0" : "=r" (rval) : \ 1396 : "memory"); rval;}) 1397 #ifdef CONFIG_PPC_BOOK3S_64 1398 #define __mtmsrd(v, l) asm volatile("mtmsrd %0," __stringify(l) \ 1399 : : "r" (v) : "memory") 1400 #define mtmsr(v) __mtmsrd((v), 0) 1401 #define __MTMSR "mtmsrd" 1402 #else 1403 #define mtmsr(v) asm volatile("mtmsr %0" : \ 1404 : "r" ((unsigned long)(v)) \ 1405 : "memory") 1406 #define __mtmsrd(v, l) BUILD_BUG() 1407 #define __MTMSR "mtmsr" 1408 #endif 1409 1410 static inline void mtmsr_isync(unsigned long val) 1411 { 1412 asm volatile(__MTMSR " %0; " ASM_FTR_IFCLR("isync", "nop", %1) : : 1413 "r" (val), "i" (CPU_FTR_ARCH_206) : "memory"); 1414 } 1415 1416 #define mfspr(rn) ({unsigned long rval; \ 1417 asm volatile("mfspr %0," __stringify(rn) \ 1418 : "=r" (rval)); rval;}) 1419 #define mtspr(rn, v) asm volatile("mtspr " __stringify(rn) ",%0" : \ 1420 : "r" ((unsigned long)(v)) \ 1421 : "memory") 1422 #define wrtspr(rn) asm volatile("mtspr " __stringify(rn) ",2" : : : "memory") 1423 1424 static inline void wrtee(unsigned long val) 1425 { 1426 if (__builtin_constant_p(val)) 1427 asm volatile("wrteei %0" : : "i" ((val & MSR_EE) ? 1 : 0) : "memory"); 1428 else 1429 asm volatile("wrtee %0" : : "r" (val) : "memory"); 1430 } 1431 1432 extern unsigned long msr_check_and_set(unsigned long bits); 1433 extern bool strict_msr_control; 1434 extern void __msr_check_and_clear(unsigned long bits); 1435 static inline void msr_check_and_clear(unsigned long bits) 1436 { 1437 if (strict_msr_control) 1438 __msr_check_and_clear(bits); 1439 } 1440 1441 #ifdef CONFIG_PPC32 1442 static inline u32 mfsr(u32 idx) 1443 { 1444 u32 val; 1445 1446 if (__builtin_constant_p(idx)) 1447 asm volatile("mfsr %0, %1" : "=r" (val): "i" (idx >> 28)); 1448 else 1449 asm volatile("mfsrin %0, %1" : "=r" (val): "r" (idx)); 1450 1451 return val; 1452 } 1453 1454 static inline void mtsr(u32 val, u32 idx) 1455 { 1456 if (__builtin_constant_p(idx)) 1457 asm volatile("mtsr %1, %0" : : "r" (val), "i" (idx >> 28)); 1458 else 1459 asm volatile("mtsrin %0, %1" : : "r" (val), "r" (idx)); 1460 } 1461 #endif 1462 1463 extern unsigned long current_stack_frame(void); 1464 1465 register unsigned long current_stack_pointer asm("r1"); 1466 1467 extern unsigned long scom970_read(unsigned int address); 1468 extern void scom970_write(unsigned int address, unsigned long value); 1469 1470 struct pt_regs; 1471 1472 extern void ppc_save_regs(struct pt_regs *regs); 1473 #endif /* __ASSEMBLY__ */ 1474 #endif /* __KERNEL__ */ 1475 #endif /* _ASM_POWERPC_REG_H */ 1476