1 /* 2 * Copyright (C) 1995-1999 Gary Thomas, Paul Mackerras, Cort Dougan. 3 */ 4 #ifndef _ASM_POWERPC_PPC_ASM_H 5 #define _ASM_POWERPC_PPC_ASM_H 6 7 #include <linux/stringify.h> 8 #include <asm/asm-compat.h> 9 #include <asm/processor.h> 10 #include <asm/ppc-opcode.h> 11 #include <asm/firmware.h> 12 #include <asm/feature-fixups.h> 13 #include <asm/extable.h> 14 15 #ifdef __ASSEMBLY__ 16 17 #define SZL (BITS_PER_LONG/8) 18 19 /* 20 * This expands to a sequence of operations with reg incrementing from 21 * start to end inclusive, of this form: 22 * 23 * op reg, (offset + (width * reg))(base) 24 * 25 * Note that offset is not the offset of the first operation unless start 26 * is zero (or width is zero). 27 */ 28 .macro OP_REGS op, width, start, end, base, offset 29 .Lreg=\start 30 .rept (\end - \start + 1) 31 \op .Lreg, \offset + \width * .Lreg(\base) 32 .Lreg=.Lreg+1 33 .endr 34 .endm 35 36 /* 37 * Macros for storing registers into and loading registers from 38 * exception frames. 39 */ 40 #ifdef __powerpc64__ 41 #define SAVE_GPRS(start, end, base) OP_REGS std, 8, start, end, base, GPR0 42 #define REST_GPRS(start, end, base) OP_REGS ld, 8, start, end, base, GPR0 43 #define SAVE_NVGPRS(base) SAVE_GPRS(14, 31, base) 44 #define REST_NVGPRS(base) REST_GPRS(14, 31, base) 45 #else 46 #define SAVE_GPRS(start, end, base) OP_REGS stw, 4, start, end, base, GPR0 47 #define REST_GPRS(start, end, base) OP_REGS lwz, 4, start, end, base, GPR0 48 #define SAVE_NVGPRS(base) SAVE_GPRS(13, 31, base) 49 #define REST_NVGPRS(base) REST_GPRS(13, 31, base) 50 #endif 51 52 #define SAVE_GPR(n, base) SAVE_GPRS(n, n, base) 53 #define REST_GPR(n, base) REST_GPRS(n, n, base) 54 55 #define SAVE_FPR(n, base) stfd n,8*TS_FPRWIDTH*(n)(base) 56 #define SAVE_2FPRS(n, base) SAVE_FPR(n, base); SAVE_FPR(n+1, base) 57 #define SAVE_4FPRS(n, base) SAVE_2FPRS(n, base); SAVE_2FPRS(n+2, base) 58 #define SAVE_8FPRS(n, base) SAVE_4FPRS(n, base); SAVE_4FPRS(n+4, base) 59 #define SAVE_16FPRS(n, base) SAVE_8FPRS(n, base); SAVE_8FPRS(n+8, base) 60 #define SAVE_32FPRS(n, base) SAVE_16FPRS(n, base); SAVE_16FPRS(n+16, base) 61 #define REST_FPR(n, base) lfd n,8*TS_FPRWIDTH*(n)(base) 62 #define REST_2FPRS(n, base) REST_FPR(n, base); REST_FPR(n+1, base) 63 #define REST_4FPRS(n, base) REST_2FPRS(n, base); REST_2FPRS(n+2, base) 64 #define REST_8FPRS(n, base) REST_4FPRS(n, base); REST_4FPRS(n+4, base) 65 #define REST_16FPRS(n, base) REST_8FPRS(n, base); REST_8FPRS(n+8, base) 66 #define REST_32FPRS(n, base) REST_16FPRS(n, base); REST_16FPRS(n+16, base) 67 68 #define SAVE_VR(n,b,base) li b,16*(n); stvx n,base,b 69 #define SAVE_2VRS(n,b,base) SAVE_VR(n,b,base); SAVE_VR(n+1,b,base) 70 #define SAVE_4VRS(n,b,base) SAVE_2VRS(n,b,base); SAVE_2VRS(n+2,b,base) 71 #define SAVE_8VRS(n,b,base) SAVE_4VRS(n,b,base); SAVE_4VRS(n+4,b,base) 72 #define SAVE_16VRS(n,b,base) SAVE_8VRS(n,b,base); SAVE_8VRS(n+8,b,base) 73 #define SAVE_32VRS(n,b,base) SAVE_16VRS(n,b,base); SAVE_16VRS(n+16,b,base) 74 #define REST_VR(n,b,base) li b,16*(n); lvx n,base,b 75 #define REST_2VRS(n,b,base) REST_VR(n,b,base); REST_VR(n+1,b,base) 76 #define REST_4VRS(n,b,base) REST_2VRS(n,b,base); REST_2VRS(n+2,b,base) 77 #define REST_8VRS(n,b,base) REST_4VRS(n,b,base); REST_4VRS(n+4,b,base) 78 #define REST_16VRS(n,b,base) REST_8VRS(n,b,base); REST_8VRS(n+8,b,base) 79 #define REST_32VRS(n,b,base) REST_16VRS(n,b,base); REST_16VRS(n+16,b,base) 80 81 #ifdef __BIG_ENDIAN__ 82 #define STXVD2X_ROT(n,b,base) STXVD2X(n,b,base) 83 #define LXVD2X_ROT(n,b,base) LXVD2X(n,b,base) 84 #else 85 #define STXVD2X_ROT(n,b,base) XXSWAPD(n,n); \ 86 STXVD2X(n,b,base); \ 87 XXSWAPD(n,n) 88 89 #define LXVD2X_ROT(n,b,base) LXVD2X(n,b,base); \ 90 XXSWAPD(n,n) 91 #endif 92 /* Save the lower 32 VSRs in the thread VSR region */ 93 #define SAVE_VSR(n,b,base) li b,16*(n); STXVD2X_ROT(n,R##base,R##b) 94 #define SAVE_2VSRS(n,b,base) SAVE_VSR(n,b,base); SAVE_VSR(n+1,b,base) 95 #define SAVE_4VSRS(n,b,base) SAVE_2VSRS(n,b,base); SAVE_2VSRS(n+2,b,base) 96 #define SAVE_8VSRS(n,b,base) SAVE_4VSRS(n,b,base); SAVE_4VSRS(n+4,b,base) 97 #define SAVE_16VSRS(n,b,base) SAVE_8VSRS(n,b,base); SAVE_8VSRS(n+8,b,base) 98 #define SAVE_32VSRS(n,b,base) SAVE_16VSRS(n,b,base); SAVE_16VSRS(n+16,b,base) 99 #define REST_VSR(n,b,base) li b,16*(n); LXVD2X_ROT(n,R##base,R##b) 100 #define REST_2VSRS(n,b,base) REST_VSR(n,b,base); REST_VSR(n+1,b,base) 101 #define REST_4VSRS(n,b,base) REST_2VSRS(n,b,base); REST_2VSRS(n+2,b,base) 102 #define REST_8VSRS(n,b,base) REST_4VSRS(n,b,base); REST_4VSRS(n+4,b,base) 103 #define REST_16VSRS(n,b,base) REST_8VSRS(n,b,base); REST_8VSRS(n+8,b,base) 104 #define REST_32VSRS(n,b,base) REST_16VSRS(n,b,base); REST_16VSRS(n+16,b,base) 105 106 /* 107 * b = base register for addressing, o = base offset from register of 1st EVR 108 * n = first EVR, s = scratch 109 */ 110 #define SAVE_EVR(n,s,b,o) evmergehi s,s,n; stw s,o+4*(n)(b) 111 #define SAVE_2EVRS(n,s,b,o) SAVE_EVR(n,s,b,o); SAVE_EVR(n+1,s,b,o) 112 #define SAVE_4EVRS(n,s,b,o) SAVE_2EVRS(n,s,b,o); SAVE_2EVRS(n+2,s,b,o) 113 #define SAVE_8EVRS(n,s,b,o) SAVE_4EVRS(n,s,b,o); SAVE_4EVRS(n+4,s,b,o) 114 #define SAVE_16EVRS(n,s,b,o) SAVE_8EVRS(n,s,b,o); SAVE_8EVRS(n+8,s,b,o) 115 #define SAVE_32EVRS(n,s,b,o) SAVE_16EVRS(n,s,b,o); SAVE_16EVRS(n+16,s,b,o) 116 #define REST_EVR(n,s,b,o) lwz s,o+4*(n)(b); evmergelo n,s,n 117 #define REST_2EVRS(n,s,b,o) REST_EVR(n,s,b,o); REST_EVR(n+1,s,b,o) 118 #define REST_4EVRS(n,s,b,o) REST_2EVRS(n,s,b,o); REST_2EVRS(n+2,s,b,o) 119 #define REST_8EVRS(n,s,b,o) REST_4EVRS(n,s,b,o); REST_4EVRS(n+4,s,b,o) 120 #define REST_16EVRS(n,s,b,o) REST_8EVRS(n,s,b,o); REST_8EVRS(n+8,s,b,o) 121 #define REST_32EVRS(n,s,b,o) REST_16EVRS(n,s,b,o); REST_16EVRS(n+16,s,b,o) 122 123 /* Macros to adjust thread priority for hardware multithreading */ 124 #define HMT_VERY_LOW or 31,31,31 # very low priority 125 #define HMT_LOW or 1,1,1 126 #define HMT_MEDIUM_LOW or 6,6,6 # medium low priority 127 #define HMT_MEDIUM or 2,2,2 128 #define HMT_MEDIUM_HIGH or 5,5,5 # medium high priority 129 #define HMT_HIGH or 3,3,3 130 #define HMT_EXTRA_HIGH or 7,7,7 # power7 only 131 132 #ifdef CONFIG_PPC64 133 #define ULONG_SIZE 8 134 #else 135 #define ULONG_SIZE 4 136 #endif 137 #define __VCPU_GPR(n) (VCPU_GPRS + (n * ULONG_SIZE)) 138 #define VCPU_GPR(n) __VCPU_GPR(__REG_##n) 139 140 #ifdef __KERNEL__ 141 142 /* 143 * We use __powerpc64__ here because we want the compat VDSO to use the 32-bit 144 * version below in the else case of the ifdef. 145 */ 146 #ifdef __powerpc64__ 147 148 #define STACKFRAMESIZE 256 149 #define __STK_REG(i) (112 + ((i)-14)*8) 150 #define STK_REG(i) __STK_REG(__REG_##i) 151 152 #ifdef PPC64_ELF_ABI_v2 153 #define STK_GOT 24 154 #define __STK_PARAM(i) (32 + ((i)-3)*8) 155 #else 156 #define STK_GOT 40 157 #define __STK_PARAM(i) (48 + ((i)-3)*8) 158 #endif 159 #define STK_PARAM(i) __STK_PARAM(__REG_##i) 160 161 #ifdef PPC64_ELF_ABI_v2 162 163 #define _GLOBAL(name) \ 164 .align 2 ; \ 165 .type name,@function; \ 166 .globl name; \ 167 name: 168 169 #define _GLOBAL_TOC(name) \ 170 .align 2 ; \ 171 .type name,@function; \ 172 .globl name; \ 173 name: \ 174 0: addis r2,r12,(.TOC.-0b)@ha; \ 175 addi r2,r2,(.TOC.-0b)@l; \ 176 .localentry name,.-name 177 178 #define DOTSYM(a) a 179 180 #else 181 182 #define XGLUE(a,b) a##b 183 #define GLUE(a,b) XGLUE(a,b) 184 185 #define _GLOBAL(name) \ 186 .align 2 ; \ 187 .globl name; \ 188 .globl GLUE(.,name); \ 189 .pushsection ".opd","aw"; \ 190 name: \ 191 .quad GLUE(.,name); \ 192 .quad .TOC.@tocbase; \ 193 .quad 0; \ 194 .popsection; \ 195 .type GLUE(.,name),@function; \ 196 GLUE(.,name): 197 198 #define _GLOBAL_TOC(name) _GLOBAL(name) 199 200 #define DOTSYM(a) GLUE(.,a) 201 202 #endif 203 204 #else /* 32-bit */ 205 206 #define _GLOBAL(n) \ 207 .globl n; \ 208 n: 209 210 #define _GLOBAL_TOC(name) _GLOBAL(name) 211 212 #define DOTSYM(a) a 213 214 #endif 215 216 /* 217 * __kprobes (the C annotation) puts the symbol into the .kprobes.text 218 * section, which gets emitted at the end of regular text. 219 * 220 * _ASM_NOKPROBE_SYMBOL and NOKPROBE_SYMBOL just adds the symbol to 221 * a blacklist. The former is for core kprobe functions/data, the 222 * latter is for those that incdentially must be excluded from probing 223 * and allows them to be linked at more optimal location within text. 224 */ 225 #ifdef CONFIG_KPROBES 226 #define _ASM_NOKPROBE_SYMBOL(entry) \ 227 .pushsection "_kprobe_blacklist","aw"; \ 228 PPC_LONG (entry) ; \ 229 .popsection 230 #else 231 #define _ASM_NOKPROBE_SYMBOL(entry) 232 #endif 233 234 #define FUNC_START(name) _GLOBAL(name) 235 #define FUNC_END(name) 236 237 /* 238 * LOAD_REG_IMMEDIATE(rn, expr) 239 * Loads the value of the constant expression 'expr' into register 'rn' 240 * using immediate instructions only. Use this when it's important not 241 * to reference other data (i.e. on ppc64 when the TOC pointer is not 242 * valid) and when 'expr' is a constant or absolute address. 243 * 244 * LOAD_REG_ADDR(rn, name) 245 * Loads the address of label 'name' into register 'rn'. Use this when 246 * you don't particularly need immediate instructions only, but you need 247 * the whole address in one register (e.g. it's a structure address and 248 * you want to access various offsets within it). On ppc32 this is 249 * identical to LOAD_REG_IMMEDIATE. 250 * 251 * LOAD_REG_ADDR_PIC(rn, name) 252 * Loads the address of label 'name' into register 'run'. Use this when 253 * the kernel doesn't run at the linked or relocated address. Please 254 * note that this macro will clobber the lr register. 255 * 256 * LOAD_REG_ADDRBASE(rn, name) 257 * ADDROFF(name) 258 * LOAD_REG_ADDRBASE loads part of the address of label 'name' into 259 * register 'rn'. ADDROFF(name) returns the remainder of the address as 260 * a constant expression. ADDROFF(name) is a signed expression < 16 bits 261 * in size, so is suitable for use directly as an offset in load and store 262 * instructions. Use this when loading/storing a single word or less as: 263 * LOAD_REG_ADDRBASE(rX, name) 264 * ld rY,ADDROFF(name)(rX) 265 */ 266 267 /* Be careful, this will clobber the lr register. */ 268 #define LOAD_REG_ADDR_PIC(reg, name) \ 269 bcl 20,31,$+4; \ 270 0: mflr reg; \ 271 addis reg,reg,(name - 0b)@ha; \ 272 addi reg,reg,(name - 0b)@l; 273 274 #if defined(__powerpc64__) && defined(HAVE_AS_ATHIGH) 275 #define __AS_ATHIGH high 276 #else 277 #define __AS_ATHIGH h 278 #endif 279 280 .macro __LOAD_REG_IMMEDIATE_32 r, x 281 .if (\x) >= 0x8000 || (\x) < -0x8000 282 lis \r, (\x)@__AS_ATHIGH 283 .if (\x) & 0xffff != 0 284 ori \r, \r, (\x)@l 285 .endif 286 .else 287 li \r, (\x)@l 288 .endif 289 .endm 290 291 .macro __LOAD_REG_IMMEDIATE r, x 292 .if (\x) >= 0x80000000 || (\x) < -0x80000000 293 __LOAD_REG_IMMEDIATE_32 \r, (\x) >> 32 294 sldi \r, \r, 32 295 .if (\x) & 0xffff0000 != 0 296 oris \r, \r, (\x)@__AS_ATHIGH 297 .endif 298 .if (\x) & 0xffff != 0 299 ori \r, \r, (\x)@l 300 .endif 301 .else 302 __LOAD_REG_IMMEDIATE_32 \r, \x 303 .endif 304 .endm 305 306 #ifdef __powerpc64__ 307 308 #define LOAD_REG_IMMEDIATE(reg, expr) __LOAD_REG_IMMEDIATE reg, expr 309 310 #define LOAD_REG_IMMEDIATE_SYM(reg, tmp, expr) \ 311 lis tmp, (expr)@highest; \ 312 lis reg, (expr)@__AS_ATHIGH; \ 313 ori tmp, tmp, (expr)@higher; \ 314 ori reg, reg, (expr)@l; \ 315 rldimi reg, tmp, 32, 0 316 317 #define LOAD_REG_ADDR(reg,name) \ 318 ld reg,name@got(r2) 319 320 #define LOAD_REG_ADDRBASE(reg,name) LOAD_REG_ADDR(reg,name) 321 #define ADDROFF(name) 0 322 323 /* offsets for stack frame layout */ 324 #define LRSAVE 16 325 326 #else /* 32-bit */ 327 328 #define LOAD_REG_IMMEDIATE(reg, expr) __LOAD_REG_IMMEDIATE_32 reg, expr 329 330 #define LOAD_REG_IMMEDIATE_SYM(reg,expr) \ 331 lis reg,(expr)@ha; \ 332 addi reg,reg,(expr)@l; 333 334 #define LOAD_REG_ADDR(reg,name) LOAD_REG_IMMEDIATE_SYM(reg, name) 335 336 #define LOAD_REG_ADDRBASE(reg, name) lis reg,name@ha 337 #define ADDROFF(name) name@l 338 339 /* offsets for stack frame layout */ 340 #define LRSAVE 4 341 342 #endif 343 344 /* various errata or part fixups */ 345 #if defined(CONFIG_PPC_CELL) || defined(CONFIG_PPC_FSL_BOOK3E) 346 #define MFTB(dest) \ 347 90: mfspr dest, SPRN_TBRL; \ 348 BEGIN_FTR_SECTION_NESTED(96); \ 349 cmpwi dest,0; \ 350 beq- 90b; \ 351 END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96) 352 #else 353 #define MFTB(dest) MFTBL(dest) 354 #endif 355 356 #ifdef CONFIG_PPC_8xx 357 #define MFTBL(dest) mftb dest 358 #define MFTBU(dest) mftbu dest 359 #else 360 #define MFTBL(dest) mfspr dest, SPRN_TBRL 361 #define MFTBU(dest) mfspr dest, SPRN_TBRU 362 #endif 363 364 #ifndef CONFIG_SMP 365 #define TLBSYNC 366 #else 367 #define TLBSYNC tlbsync; sync 368 #endif 369 370 #ifdef CONFIG_PPC64 371 #define MTOCRF(FXM, RS) \ 372 BEGIN_FTR_SECTION_NESTED(848); \ 373 mtcrf (FXM), RS; \ 374 FTR_SECTION_ELSE_NESTED(848); \ 375 mtocrf (FXM), RS; \ 376 ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_NOEXECUTE, 848) 377 #endif 378 379 /* 380 * This instruction is not implemented on the PPC 603 or 601; however, on 381 * the 403GCX and 405GP tlbia IS defined and tlbie is not. 382 * All of these instructions exist in the 8xx, they have magical powers, 383 * and they must be used. 384 */ 385 386 #if !defined(CONFIG_4xx) && !defined(CONFIG_PPC_8xx) 387 #define tlbia \ 388 li r4,1024; \ 389 mtctr r4; \ 390 lis r4,KERNELBASE@h; \ 391 .machine push; \ 392 .machine "power4"; \ 393 0: tlbie r4; \ 394 .machine pop; \ 395 addi r4,r4,0x1000; \ 396 bdnz 0b 397 #endif 398 399 400 #ifdef CONFIG_IBM440EP_ERR42 401 #define PPC440EP_ERR42 isync 402 #else 403 #define PPC440EP_ERR42 404 #endif 405 406 /* The following stops all load and store data streams associated with stream 407 * ID (ie. streams created explicitly). The embedded and server mnemonics for 408 * dcbt are different so this must only be used for server. 409 */ 410 #define DCBT_BOOK3S_STOP_ALL_STREAM_IDS(scratch) \ 411 lis scratch,0x60000000@h; \ 412 dcbt 0,scratch,0b01010 413 414 /* 415 * toreal/fromreal/tophys/tovirt macros. 32-bit BookE makes them 416 * keep the address intact to be compatible with code shared with 417 * 32-bit classic. 418 * 419 * On the other hand, I find it useful to have them behave as expected 420 * by their name (ie always do the addition) on 64-bit BookE 421 */ 422 #if defined(CONFIG_BOOKE) && !defined(CONFIG_PPC64) 423 #define toreal(rd) 424 #define fromreal(rd) 425 426 /* 427 * We use addis to ensure compatibility with the "classic" ppc versions of 428 * these macros, which use rs = 0 to get the tophys offset in rd, rather than 429 * converting the address in r0, and so this version has to do that too 430 * (i.e. set register rd to 0 when rs == 0). 431 */ 432 #define tophys(rd,rs) \ 433 addis rd,rs,0 434 435 #define tovirt(rd,rs) \ 436 addis rd,rs,0 437 438 #elif defined(CONFIG_PPC64) 439 #define toreal(rd) /* we can access c000... in real mode */ 440 #define fromreal(rd) 441 442 #define tophys(rd,rs) \ 443 clrldi rd,rs,2 444 445 #define tovirt(rd,rs) \ 446 rotldi rd,rs,16; \ 447 ori rd,rd,((KERNELBASE>>48)&0xFFFF);\ 448 rotldi rd,rd,48 449 #else 450 #define toreal(rd) tophys(rd,rd) 451 #define fromreal(rd) tovirt(rd,rd) 452 453 #define tophys(rd, rs) addis rd, rs, -PAGE_OFFSET@h 454 #define tovirt(rd, rs) addis rd, rs, PAGE_OFFSET@h 455 #endif 456 457 #ifdef CONFIG_PPC_BOOK3S_64 458 #define MTMSRD(r) mtmsrd r 459 #define MTMSR_EERI(reg) mtmsrd reg,1 460 #else 461 #define MTMSRD(r) mtmsr r 462 #define MTMSR_EERI(reg) mtmsr reg 463 #endif 464 465 #endif /* __KERNEL__ */ 466 467 /* The boring bits... */ 468 469 /* Condition Register Bit Fields */ 470 471 #define cr0 0 472 #define cr1 1 473 #define cr2 2 474 #define cr3 3 475 #define cr4 4 476 #define cr5 5 477 #define cr6 6 478 #define cr7 7 479 480 481 /* 482 * General Purpose Registers (GPRs) 483 * 484 * The lower case r0-r31 should be used in preference to the upper 485 * case R0-R31 as they provide more error checking in the assembler. 486 * Use R0-31 only when really nessesary. 487 */ 488 489 #define r0 %r0 490 #define r1 %r1 491 #define r2 %r2 492 #define r3 %r3 493 #define r4 %r4 494 #define r5 %r5 495 #define r6 %r6 496 #define r7 %r7 497 #define r8 %r8 498 #define r9 %r9 499 #define r10 %r10 500 #define r11 %r11 501 #define r12 %r12 502 #define r13 %r13 503 #define r14 %r14 504 #define r15 %r15 505 #define r16 %r16 506 #define r17 %r17 507 #define r18 %r18 508 #define r19 %r19 509 #define r20 %r20 510 #define r21 %r21 511 #define r22 %r22 512 #define r23 %r23 513 #define r24 %r24 514 #define r25 %r25 515 #define r26 %r26 516 #define r27 %r27 517 #define r28 %r28 518 #define r29 %r29 519 #define r30 %r30 520 #define r31 %r31 521 522 523 /* Floating Point Registers (FPRs) */ 524 525 #define fr0 0 526 #define fr1 1 527 #define fr2 2 528 #define fr3 3 529 #define fr4 4 530 #define fr5 5 531 #define fr6 6 532 #define fr7 7 533 #define fr8 8 534 #define fr9 9 535 #define fr10 10 536 #define fr11 11 537 #define fr12 12 538 #define fr13 13 539 #define fr14 14 540 #define fr15 15 541 #define fr16 16 542 #define fr17 17 543 #define fr18 18 544 #define fr19 19 545 #define fr20 20 546 #define fr21 21 547 #define fr22 22 548 #define fr23 23 549 #define fr24 24 550 #define fr25 25 551 #define fr26 26 552 #define fr27 27 553 #define fr28 28 554 #define fr29 29 555 #define fr30 30 556 #define fr31 31 557 558 /* AltiVec Registers (VPRs) */ 559 560 #define v0 0 561 #define v1 1 562 #define v2 2 563 #define v3 3 564 #define v4 4 565 #define v5 5 566 #define v6 6 567 #define v7 7 568 #define v8 8 569 #define v9 9 570 #define v10 10 571 #define v11 11 572 #define v12 12 573 #define v13 13 574 #define v14 14 575 #define v15 15 576 #define v16 16 577 #define v17 17 578 #define v18 18 579 #define v19 19 580 #define v20 20 581 #define v21 21 582 #define v22 22 583 #define v23 23 584 #define v24 24 585 #define v25 25 586 #define v26 26 587 #define v27 27 588 #define v28 28 589 #define v29 29 590 #define v30 30 591 #define v31 31 592 593 /* VSX Registers (VSRs) */ 594 595 #define vs0 0 596 #define vs1 1 597 #define vs2 2 598 #define vs3 3 599 #define vs4 4 600 #define vs5 5 601 #define vs6 6 602 #define vs7 7 603 #define vs8 8 604 #define vs9 9 605 #define vs10 10 606 #define vs11 11 607 #define vs12 12 608 #define vs13 13 609 #define vs14 14 610 #define vs15 15 611 #define vs16 16 612 #define vs17 17 613 #define vs18 18 614 #define vs19 19 615 #define vs20 20 616 #define vs21 21 617 #define vs22 22 618 #define vs23 23 619 #define vs24 24 620 #define vs25 25 621 #define vs26 26 622 #define vs27 27 623 #define vs28 28 624 #define vs29 29 625 #define vs30 30 626 #define vs31 31 627 #define vs32 32 628 #define vs33 33 629 #define vs34 34 630 #define vs35 35 631 #define vs36 36 632 #define vs37 37 633 #define vs38 38 634 #define vs39 39 635 #define vs40 40 636 #define vs41 41 637 #define vs42 42 638 #define vs43 43 639 #define vs44 44 640 #define vs45 45 641 #define vs46 46 642 #define vs47 47 643 #define vs48 48 644 #define vs49 49 645 #define vs50 50 646 #define vs51 51 647 #define vs52 52 648 #define vs53 53 649 #define vs54 54 650 #define vs55 55 651 #define vs56 56 652 #define vs57 57 653 #define vs58 58 654 #define vs59 59 655 #define vs60 60 656 #define vs61 61 657 #define vs62 62 658 #define vs63 63 659 660 /* SPE Registers (EVPRs) */ 661 662 #define evr0 0 663 #define evr1 1 664 #define evr2 2 665 #define evr3 3 666 #define evr4 4 667 #define evr5 5 668 #define evr6 6 669 #define evr7 7 670 #define evr8 8 671 #define evr9 9 672 #define evr10 10 673 #define evr11 11 674 #define evr12 12 675 #define evr13 13 676 #define evr14 14 677 #define evr15 15 678 #define evr16 16 679 #define evr17 17 680 #define evr18 18 681 #define evr19 19 682 #define evr20 20 683 #define evr21 21 684 #define evr22 22 685 #define evr23 23 686 #define evr24 24 687 #define evr25 25 688 #define evr26 26 689 #define evr27 27 690 #define evr28 28 691 #define evr29 29 692 #define evr30 30 693 #define evr31 31 694 695 #define RFSCV .long 0x4c0000a4 696 697 /* 698 * Create an endian fixup trampoline 699 * 700 * This starts with a "tdi 0,0,0x48" instruction which is 701 * essentially a "trap never", and thus akin to a nop. 702 * 703 * The opcode for this instruction read with the wrong endian 704 * however results in a b . + 8 705 * 706 * So essentially we use that trick to execute the following 707 * trampoline in "reverse endian" if we are running with the 708 * MSR_LE bit set the "wrong" way for whatever endianness the 709 * kernel is built for. 710 */ 711 712 #ifdef CONFIG_PPC_BOOK3E 713 #define FIXUP_ENDIAN 714 #else 715 /* 716 * This version may be used in HV or non-HV context. 717 * MSR[EE] must be disabled. 718 */ 719 #define FIXUP_ENDIAN \ 720 tdi 0,0,0x48; /* Reverse endian of b . + 8 */ \ 721 b 191f; /* Skip trampoline if endian is good */ \ 722 .long 0xa600607d; /* mfmsr r11 */ \ 723 .long 0x01006b69; /* xori r11,r11,1 */ \ 724 .long 0x00004039; /* li r10,0 */ \ 725 .long 0x6401417d; /* mtmsrd r10,1 */ \ 726 .long 0x05009f42; /* bcl 20,31,$+4 */ \ 727 .long 0xa602487d; /* mflr r10 */ \ 728 .long 0x14004a39; /* addi r10,r10,20 */ \ 729 .long 0xa6035a7d; /* mtsrr0 r10 */ \ 730 .long 0xa6037b7d; /* mtsrr1 r11 */ \ 731 .long 0x2400004c; /* rfid */ \ 732 191: 733 734 /* 735 * This version that may only be used with MSR[HV]=1 736 * - Does not clear MSR[RI], so more robust. 737 * - Slightly smaller and faster. 738 */ 739 #define FIXUP_ENDIAN_HV \ 740 tdi 0,0,0x48; /* Reverse endian of b . + 8 */ \ 741 b 191f; /* Skip trampoline if endian is good */ \ 742 .long 0xa600607d; /* mfmsr r11 */ \ 743 .long 0x01006b69; /* xori r11,r11,1 */ \ 744 .long 0x05009f42; /* bcl 20,31,$+4 */ \ 745 .long 0xa602487d; /* mflr r10 */ \ 746 .long 0x14004a39; /* addi r10,r10,20 */ \ 747 .long 0xa64b5a7d; /* mthsrr0 r10 */ \ 748 .long 0xa64b7b7d; /* mthsrr1 r11 */ \ 749 .long 0x2402004c; /* hrfid */ \ 750 191: 751 752 #endif /* !CONFIG_PPC_BOOK3E */ 753 754 #endif /* __ASSEMBLY__ */ 755 756 #define SOFT_MASK_TABLE(_start, _end) \ 757 stringify_in_c(.section __soft_mask_table,"a";)\ 758 stringify_in_c(.balign 8;) \ 759 stringify_in_c(.llong (_start);) \ 760 stringify_in_c(.llong (_end);) \ 761 stringify_in_c(.previous) 762 763 #define RESTART_TABLE(_start, _end, _target) \ 764 stringify_in_c(.section __restart_table,"a";)\ 765 stringify_in_c(.balign 8;) \ 766 stringify_in_c(.llong (_start);) \ 767 stringify_in_c(.llong (_end);) \ 768 stringify_in_c(.llong (_target);) \ 769 stringify_in_c(.previous) 770 771 #ifdef CONFIG_PPC_FSL_BOOK3E 772 #define BTB_FLUSH(reg) \ 773 lis reg,BUCSR_INIT@h; \ 774 ori reg,reg,BUCSR_INIT@l; \ 775 mtspr SPRN_BUCSR,reg; \ 776 isync; 777 #else 778 #define BTB_FLUSH(reg) 779 #endif /* CONFIG_PPC_FSL_BOOK3E */ 780 781 #endif /* _ASM_POWERPC_PPC_ASM_H */ 782