1 /* $NetBSD: locore.h,v 1.92 2011/08/17 14:39:59 matt Exp $ */ 2 3 /* 4 * This file should not be included by MI code!!! 5 */ 6 7 /* 8 * Copyright 1996 The Board of Trustees of The Leland Stanford 9 * Junior University. All Rights Reserved. 10 * 11 * Permission to use, copy, modify, and distribute this 12 * software and its documentation for any purpose and without 13 * fee is hereby granted, provided that the above copyright 14 * notice appear in all copies. Stanford University 15 * makes no representations about the suitability of this 16 * software for any purpose. It is provided "as is" without 17 * express or implied warranty. 18 */ 19 20 /* 21 * Jump table for MIPS CPU locore functions that are implemented 22 * differently on different generations, or instruction-level 23 * architecture (ISA) level, the Mips family. 24 * 25 * We currently provide support for MIPS I and MIPS III. 26 */ 27 28 #ifndef _MIPS_LOCORE_H 29 #define _MIPS_LOCORE_H 30 31 #if !defined(_LKM) && defined(_KERNEL_OPT) 32 #include "opt_cputype.h" 33 #endif 34 35 #include <mips/mutex.h> 36 #include <mips/cpuregs.h> 37 #include <mips/reg.h> 38 39 struct tlbmask; 40 struct trapframe; 41 42 void trap(uint32_t, uint32_t, vaddr_t, vaddr_t, struct trapframe *); 43 void ast(void); 44 45 void mips_fpu_trap(vaddr_t, struct trapframe *); 46 void mips_fpu_intr(vaddr_t, struct trapframe *); 47 48 vaddr_t mips_emul_branch(struct trapframe *, vaddr_t, uint32_t, bool); 49 void mips_emul_inst(uint32_t, uint32_t, vaddr_t, struct trapframe *); 50 51 void mips_emul_fp(uint32_t, struct trapframe *, uint32_t); 52 void mips_emul_branchdelayslot(uint32_t, struct trapframe *, uint32_t); 53 54 void mips_emul_lwc0(uint32_t, struct trapframe *, uint32_t); 55 void mips_emul_swc0(uint32_t, struct trapframe *, uint32_t); 56 void mips_emul_special(uint32_t, struct trapframe *, uint32_t); 57 void mips_emul_special3(uint32_t, struct trapframe *, uint32_t); 58 59 void mips_emul_lwc1(uint32_t, struct trapframe *, uint32_t); 60 void mips_emul_swc1(uint32_t, struct trapframe *, uint32_t); 61 void mips_emul_ldc1(uint32_t, struct trapframe *, uint32_t); 62 void mips_emul_sdc1(uint32_t, struct trapframe *, uint32_t); 63 64 void mips_emul_lb(uint32_t, struct trapframe *, uint32_t); 65 void mips_emul_lbu(uint32_t, struct trapframe *, uint32_t); 66 void mips_emul_lh(uint32_t, struct trapframe *, uint32_t); 67 void mips_emul_lhu(uint32_t, struct trapframe *, uint32_t); 68 void mips_emul_lw(uint32_t, struct trapframe *, uint32_t); 69 void mips_emul_lwl(uint32_t, struct trapframe *, uint32_t); 70 void mips_emul_lwr(uint32_t, struct trapframe *, uint32_t); 71 #if defined(__mips_n32) || defined(__mips_n64) || defined(__mips_o64) 72 void mips_emul_lwu(uint32_t, struct trapframe *, uint32_t); 73 void mips_emul_ld(uint32_t, struct trapframe *, uint32_t); 74 void mips_emul_ldl(uint32_t, struct trapframe *, uint32_t); 75 void mips_emul_ldr(uint32_t, struct trapframe *, uint32_t); 76 #endif 77 void mips_emul_sb(uint32_t, struct trapframe *, uint32_t); 78 void mips_emul_sh(uint32_t, struct trapframe *, uint32_t); 79 void mips_emul_sw(uint32_t, struct trapframe *, uint32_t); 80 void mips_emul_swl(uint32_t, struct trapframe *, uint32_t); 81 void mips_emul_swr(uint32_t, struct trapframe *, uint32_t); 82 #if defined(__mips_n32) || defined(__mips_n64) || defined(__mips_o64) 83 void mips_emul_sd(uint32_t, struct trapframe *, uint32_t); 84 void mips_emul_sdl(uint32_t, struct trapframe *, uint32_t); 85 void mips_emul_sdr(uint32_t, struct trapframe *, uint32_t); 86 #endif 87 88 uint32_t mips_cp0_cause_read(void); 89 void mips_cp0_cause_write(uint32_t); 90 uint32_t mips_cp0_status_read(void); 91 void mips_cp0_status_write(uint32_t); 92 93 void softint_process(uint32_t); 94 void softint_fast_dispatch(struct lwp *, int); 95 96 /* 97 * Convert an address to an offset used in a MIPS jump instruction. The offset 98 * contains the low 28 bits (allowing a jump to anywhere within the same 256MB 99 * segment of address space) of the address but since mips instructions are 100 * always on a 4 byte boundary the low 2 bits are always zero so the 28 bits 101 * get shifted right by 2 bits leaving us with a 26 bit result. To make the 102 * offset, we shift left to clear the upper four bits and then right by 6. 103 */ 104 #define fixup_addr2offset(x) ((((uint32_t)(uintptr_t)(x)) << 4) >> 6) 105 typedef bool (*mips_fixup_callback_t)(int32_t, uint32_t [2]); 106 struct mips_jump_fixup_info { 107 uint32_t jfi_stub; 108 uint32_t jfi_real; 109 }; 110 111 void fixup_splcalls(void); /* splstubs.c */ 112 bool mips_fixup_exceptions(mips_fixup_callback_t); 113 bool mips_fixup_zero_relative(int32_t, uint32_t [2]); 114 intptr_t 115 mips_fixup_addr(const uint32_t *); 116 void mips_fixup_stubs(uint32_t *, uint32_t *); 117 118 /* 119 * Define these stubs... 120 */ 121 void mips_cpu_switch_resume(struct lwp *); 122 void tlb_set_asid(uint32_t); 123 void tlb_invalidate_all(void); 124 void tlb_invalidate_globals(void); 125 void tlb_invalidate_asids(uint32_t, uint32_t); 126 void tlb_invalidate_addr(vaddr_t); 127 u_int tlb_record_asids(u_long *, uint32_t); 128 int tlb_update(vaddr_t, uint32_t); 129 void tlb_enter(size_t, vaddr_t, uint32_t); 130 void tlb_read_indexed(size_t, struct tlbmask *); 131 void tlb_write_indexed(size_t, const struct tlbmask *); 132 void wbflush(void); 133 134 #ifdef MIPS1 135 void mips1_tlb_invalidate_all(void); 136 137 uint32_t tx3900_cp0_config_read(void); 138 #endif 139 140 #if (MIPS3 + MIPS4 + MIPS32 + MIPS32R2 + MIPS64 + MIPS64R2) > 0 141 uint32_t mips3_cp0_compare_read(void); 142 void mips3_cp0_compare_write(uint32_t); 143 144 uint32_t mips3_cp0_config_read(void); 145 void mips3_cp0_config_write(uint32_t); 146 147 #if (MIPS32 + MIPS32R2 + MIPS64 + MIPS64R2) > 0 148 uint32_t mipsNN_cp0_config1_read(void); 149 void mipsNN_cp0_config1_write(uint32_t); 150 uint32_t mipsNN_cp0_config2_read(void); 151 uint32_t mipsNN_cp0_config3_read(void); 152 153 intptr_t mipsNN_cp0_watchlo_read(u_int); 154 void mipsNN_cp0_watchlo_write(u_int, intptr_t); 155 uint32_t mipsNN_cp0_watchhi_read(u_int); 156 void mipsNN_cp0_watchhi_write(u_int, uint32_t); 157 158 #if (MIPS32R2 + MIPS64R2) > 0 159 void mipsNN_cp0_hwrena_write(uint32_t); 160 void mipsNN_cp0_userlocal_write(void *); 161 #endif 162 #endif 163 164 uint32_t mips3_cp0_count_read(void); 165 void mips3_cp0_count_write(uint32_t); 166 167 uint32_t mips3_cp0_wired_read(void); 168 void mips3_cp0_wired_write(uint32_t); 169 void mips3_cp0_pg_mask_write(uint32_t); 170 171 #if defined(__GNUC__) && !defined(__mips_o32) 172 static inline uint64_t 173 mips3_ld(const volatile uint64_t *va) 174 { 175 uint64_t rv; 176 #if defined(__mips_o32) 177 uint32_t sr; 178 179 sr = mips_cp0_status_read(); 180 mips_cp0_status_write(sr & ~MIPS_SR_INT_IE); 181 182 __asm volatile( 183 ".set push \n\t" 184 ".set mips3 \n\t" 185 ".set noreorder \n\t" 186 ".set noat \n\t" 187 "ld %M0,0(%1) \n\t" 188 "dsll32 %L0,%M0,0 \n\t" 189 "dsra32 %M0,%M0,0 \n\t" /* high word */ 190 "dsra32 %L0,%L0,0 \n\t" /* low word */ 191 "ld %0,0(%1) \n\t" 192 ".set pop" 193 : "=d"(rv) 194 : "r"(va)); 195 196 mips_cp0_status_write(sr); 197 #elif defined(_LP64) 198 rv = *va; 199 #else 200 __asm volatile("ld %0,0(%1)" : "=d"(rv) : "r"(va)); 201 #endif 202 203 return rv; 204 } 205 static inline void 206 mips3_sd(volatile uint64_t *va, uint64_t v) 207 { 208 #if defined(__mips_o32) 209 uint32_t sr; 210 211 sr = mips_cp0_status_read(); 212 mips_cp0_status_write(sr & ~MIPS_SR_INT_IE); 213 214 __asm volatile( 215 ".set push \n\t" 216 ".set mips3 \n\t" 217 ".set noreorder \n\t" 218 ".set noat \n\t" 219 "dsll32 %M0,%M0,0 \n\t" 220 "dsll32 %L0,%L0,0 \n\t" 221 "dsrl32 %L0,%L0,0 \n\t" 222 "or %0,%L0,%M0 \n\t" 223 "sd %0,0(%1) \n\t" 224 ".set pop" 225 : "=d"(v) : "0"(v), "r"(va)); 226 227 mips_cp0_status_write(sr); 228 #elif defined(_LP64) 229 *va = v; 230 #else 231 __asm volatile("sd %0,0(%1)" :: "r"(v), "r"(va)); 232 #endif 233 } 234 #else 235 uint64_t mips3_ld(volatile uint64_t *va); 236 void mips3_sd(volatile uint64_t *, uint64_t); 237 #endif /* __GNUC__ */ 238 #endif /* (MIPS3 + MIPS4 + MIPS32 + MIPS32R2 + MIPS64 + MIPS64R2) > 0 */ 239 240 #if (MIPS3 + MIPS4 + MIPS64 + MIPS64R2) > 0 241 static __inline uint32_t mips3_lw_a64(uint64_t addr) __unused; 242 static __inline void mips3_sw_a64(uint64_t addr, uint32_t val) __unused; 243 244 static __inline uint32_t 245 mips3_lw_a64(uint64_t addr) 246 { 247 uint32_t rv; 248 #if defined(__mips_o32) 249 uint32_t sr; 250 251 sr = mips_cp0_status_read(); 252 mips_cp0_status_write((sr & ~MIPS_SR_INT_IE) | MIPS3_SR_KX); 253 254 __asm volatile ( 255 ".set push \n\t" 256 ".set mips3 \n\t" 257 ".set noreorder \n\t" 258 ".set noat \n\t" 259 "dsll32 %M1,%M1,0 \n\t" 260 "dsll32 %L1,%L1,0 \n\t" 261 "dsrl32 %L1,%L1,0 \n\t" 262 "or %1,%M1,%L1 \n\t" 263 "lw %0, 0(%1) \n\t" 264 ".set pop" 265 : "=r"(rv), "=d"(addr) 266 : "1"(addr) 267 ); 268 269 mips_cp0_status_write(sr); 270 #elif defined(__mips_n32) 271 uint32_t sr = mips_cp0_status_read(); 272 mips_cp0_status_write((sr & ~MIPS_SR_INT_IE) | MIPS3_SR_KX); 273 __asm volatile("lw %0, 0(%1)" : "=r"(rv) : "d"(addr)); 274 mips_cp0_status_write(sr); 275 #elif defined(_LP64) 276 rv = *(const uint32_t *)addr; 277 #else 278 #error unknown ABI 279 #endif 280 return (rv); 281 } 282 283 static __inline void 284 mips3_sw_a64(uint64_t addr, uint32_t val) 285 { 286 #if defined(__mips_o32) 287 uint32_t sr; 288 289 sr = mips_cp0_status_read(); 290 mips_cp0_status_write((sr & ~MIPS_SR_INT_IE) | MIPS3_SR_KX); 291 292 __asm volatile ( 293 ".set push \n\t" 294 ".set mips3 \n\t" 295 ".set noreorder \n\t" 296 ".set noat \n\t" 297 "dsll32 %M0,%M0,0 \n\t" 298 "dsll32 %L0,%L0,0 \n\t" 299 "dsrl32 %L0,%L0,0 \n\t" 300 "or %0,%M0,%L0 \n\t" 301 "sw %1, 0(%0) \n\t" 302 ".set pop" 303 : "=d"(addr): "r"(val), "0"(addr) 304 ); 305 306 mips_cp0_status_write(sr); 307 #elif defined(__mips_n32) 308 uint32_t sr = mips_cp0_status_read(); 309 mips_cp0_status_write((sr & ~MIPS_SR_INT_IE) | MIPS3_SR_KX); 310 __asm volatile("sw %1, 0(%0)" :: "d"(addr), "r"(val)); 311 mips_cp0_status_write(sr); 312 #elif defined(_LP64) 313 *(uint32_t *)addr = val; 314 #else 315 #error unknown ABI 316 #endif 317 } 318 #endif /* (MIPS3 + MIPS4 + MIPS64 + MIPS64R2) > 0 */ 319 320 /* 321 * A vector with an entry for each mips-ISA-level dependent 322 * locore function, and macros which jump through it. 323 */ 324 typedef struct { 325 void (*ljv_cpu_switch_resume)(struct lwp *); 326 intptr_t ljv_lwp_trampoline; 327 intptr_t ljv_setfunc_trampoline; 328 void (*ljv_wbflush)(void); 329 void (*ljv_tlb_set_asid)(uint32_t pid); 330 void (*ljv_tlb_invalidate_asids)(uint32_t, uint32_t); 331 void (*ljv_tlb_invalidate_addr)(vaddr_t); 332 void (*ljv_tlb_invalidate_globals)(void); 333 void (*ljv_tlb_invalidate_all)(void); 334 u_int (*ljv_tlb_record_asids)(u_long *, uint32_t); 335 int (*ljv_tlb_update)(vaddr_t, uint32_t); 336 void (*ljv_tlb_enter)(size_t, vaddr_t, uint32_t); 337 void (*ljv_tlb_read_indexed)(size_t, struct tlbmask *); 338 void (*ljv_tlb_write_indexed)(size_t, const struct tlbmask *); 339 } mips_locore_jumpvec_t; 340 341 typedef struct { 342 u_int (*lav_atomic_cas_uint)(volatile u_int *, u_int, u_int); 343 u_long (*lav_atomic_cas_ulong)(volatile u_long *, u_long, u_long); 344 int (*lav_ucas_uint)(volatile u_int *, u_int, u_int, u_int *); 345 int (*lav_ucas_ulong)(volatile u_long *, u_long, u_long, u_long *); 346 void (*lav_mutex_enter)(kmutex_t *); 347 void (*lav_mutex_exit)(kmutex_t *); 348 void (*lav_mutex_spin_enter)(kmutex_t *); 349 void (*lav_mutex_spin_exit)(kmutex_t *); 350 } mips_locore_atomicvec_t; 351 352 void mips_set_wbflush(void (*)(void)); 353 void mips_wait_idle(void); 354 355 void stacktrace(void); 356 void logstacktrace(void); 357 358 struct cpu_info; 359 struct splsw; 360 361 struct locoresw { 362 void (*lsw_wbflush)(void); 363 void (*lsw_cpu_idle)(void); 364 int (*lsw_send_ipi)(struct cpu_info *, int); 365 void (*lsw_cpu_offline_md)(void); 366 void (*lsw_cpu_init)(struct cpu_info *); 367 void (*lsw_cpu_run)(struct cpu_info *); 368 int (*lsw_bus_error)(unsigned int); 369 }; 370 371 struct mips_vmfreelist { 372 paddr_t fl_start; 373 paddr_t fl_end; 374 int fl_freelist; 375 }; 376 377 /* 378 * The "active" locore-function vector, and 379 */ 380 extern const mips_locore_atomicvec_t mips_llsc_locore_atomicvec; 381 382 extern mips_locore_atomicvec_t mips_locore_atomicvec; 383 extern mips_locore_jumpvec_t mips_locore_jumpvec; 384 extern struct locoresw mips_locoresw; 385 386 struct splsw; 387 struct mips_vmfreelist; 388 struct phys_ram_seg; 389 390 void mips_vector_init(const struct splsw *, bool); 391 void mips_init_msgbuf(void); 392 void mips_init_lwp0_uarea(void); 393 void mips_page_physload(vaddr_t, vaddr_t, 394 const struct phys_ram_seg *, size_t, 395 const struct mips_vmfreelist *, size_t); 396 397 398 /* 399 * CPU identification, from PRID register. 400 */ 401 #define MIPS_PRID_REV(x) (((x) >> 0) & 0x00ff) 402 #define MIPS_PRID_IMPL(x) (((x) >> 8) & 0x00ff) 403 404 /* pre-MIPS32/64 */ 405 #define MIPS_PRID_RSVD(x) (((x) >> 16) & 0xffff) 406 #define MIPS_PRID_REV_MIN(x) ((MIPS_PRID_REV(x) >> 0) & 0x0f) 407 #define MIPS_PRID_REV_MAJ(x) ((MIPS_PRID_REV(x) >> 4) & 0x0f) 408 409 /* MIPS32/64 */ 410 #define MIPS_PRID_CID(x) (((x) >> 16) & 0x00ff) /* Company ID */ 411 #define MIPS_PRID_CID_PREHISTORIC 0x00 /* Not MIPS32/64 */ 412 #define MIPS_PRID_CID_MTI 0x01 /* MIPS Technologies, Inc. */ 413 #define MIPS_PRID_CID_BROADCOM 0x02 /* Broadcom */ 414 #define MIPS_PRID_CID_ALCHEMY 0x03 /* Alchemy Semiconductor */ 415 #define MIPS_PRID_CID_SIBYTE 0x04 /* SiByte */ 416 #define MIPS_PRID_CID_SANDCRAFT 0x05 /* SandCraft */ 417 #define MIPS_PRID_CID_PHILIPS 0x06 /* Philips */ 418 #define MIPS_PRID_CID_TOSHIBA 0x07 /* Toshiba */ 419 #define MIPS_PRID_CID_MICROSOFT 0x07 /* Microsoft also, sigh */ 420 #define MIPS_PRID_CID_LSI 0x08 /* LSI */ 421 /* 0x09 unannounced */ 422 /* 0x0a unannounced */ 423 #define MIPS_PRID_CID_LEXRA 0x0b /* Lexra */ 424 #define MIPS_PRID_CID_RMI 0x0c /* RMI / NetLogic */ 425 #define MIPS_PRID_COPTS(x) (((x) >> 24) & 0x00ff) /* Company Options */ 426 427 #ifdef _KERNEL 428 /* 429 * Global variables used to communicate CPU type, and parameters 430 * such as cache size, from locore to higher-level code (e.g., pmap). 431 */ 432 void mips_pagecopy(void *dst, void *src); 433 void mips_pagezero(void *dst); 434 435 #ifdef __HAVE_MIPS_MACHDEP_CACHE_CONFIG 436 void mips_machdep_cache_config(void); 437 #endif 438 439 /* 440 * trapframe argument passed to trap() 441 */ 442 443 #if 0 444 #define TF_AST 0 /* really zero */ 445 #define TF_V0 _R_V0 446 #define TF_V1 _R_V1 447 #define TF_A0 _R_A0 448 #define TF_A1 _R_A1 449 #define TF_A2 _R_A2 450 #define TF_A3 _R_A3 451 #define TF_T0 _R_T0 452 #define TF_T1 _R_T1 453 #define TF_T2 _R_T2 454 #define TF_T3 _R_T3 455 456 #if defined(__mips_n32) || defined(__mips_n64) 457 #define TF_A4 _R_A4 458 #define TF_A5 _R_A5 459 #define TF_A6 _R_A6 460 #define TF_A7 _R_A7 461 #else 462 #define TF_T4 _R_T4 463 #define TF_T5 _R_T5 464 #define TF_T6 _R_T6 465 #define TF_T7 _R_T7 466 #endif /* __mips_n32 || __mips_n64 */ 467 468 #define TF_TA0 _R_TA0 469 #define TF_TA1 _R_TA1 470 #define TF_TA2 _R_TA2 471 #define TF_TA3 _R_TA3 472 473 #define TF_T8 _R_T8 474 #define TF_T9 _R_T9 475 476 #define TF_RA _R_RA 477 #define TF_SR _R_SR 478 #define TF_MULLO _R_MULLO 479 #define TF_MULHI _R_MULLO 480 #define TF_EPC _R_PC /* may be changed by trap() call */ 481 482 #define TF_NREGS (sizeof(struct reg) / sizeof(mips_reg_t)) 483 #endif 484 485 struct trapframe { 486 struct reg tf_registers; 487 #define tf_regs tf_registers.r_regs 488 uint32_t tf_ppl; /* previous priority level */ 489 mips_reg_t tf_pad; /* for 8 byte aligned */ 490 }; 491 492 CTASSERT(sizeof(struct trapframe) % (4*sizeof(mips_reg_t)) == 0); 493 494 /* 495 * Stack frame for kernel traps. four args passed in registers. 496 * A trapframe is pointed to by the 5th arg, and a dummy sixth argument 497 * is used to avoid alignment problems 498 */ 499 500 struct kernframe { 501 #if defined(__mips_o32) || defined(__mips_o64) 502 register_t cf_args[4 + 1]; 503 #if defined(__mips_o32) 504 register_t cf_pad; /* (for 8 byte alignment) */ 505 #endif 506 #endif 507 #if defined(__mips_n32) || defined(__mips_n64) 508 register_t cf_pad[2]; /* for 16 byte alignment */ 509 #endif 510 register_t cf_sp; 511 register_t cf_ra; 512 struct trapframe cf_frame; 513 }; 514 515 CTASSERT(sizeof(struct kernframe) % (2*sizeof(mips_reg_t)) == 0); 516 517 /* 518 * PRocessor IDentity TABle 519 */ 520 521 struct pridtab { 522 int cpu_cid; 523 int cpu_pid; 524 int cpu_rev; /* -1 == wildcard */ 525 int cpu_copts; /* -1 == wildcard */ 526 int cpu_isa; /* -1 == probed (mips32/mips64) */ 527 int cpu_ntlb; /* -1 == unknown, 0 == probed */ 528 int cpu_flags; 529 u_int cpu_cp0flags; /* presence of some cp0 regs */ 530 u_int cpu_cidflags; /* company-specific flags */ 531 const char *cpu_name; 532 }; 533 534 /* 535 * bitfield defines for cpu_cp0flags 536 */ 537 #define MIPS_CP0FL_USE __BIT(0) /* use these flags */ 538 #define MIPS_CP0FL_ECC __BIT(1) 539 #define MIPS_CP0FL_CACHE_ERR __BIT(2) 540 #define MIPS_CP0FL_EIRR __BIT(3) 541 #define MIPS_CP0FL_EIMR __BIT(4) 542 #define MIPS_CP0FL_EBASE __BIT(5) 543 #define MIPS_CP0FL_CONFIG __BIT(6) 544 #define MIPS_CP0FL_CONFIG1 __BIT(7) 545 #define MIPS_CP0FL_CONFIG2 __BIT(8) 546 #define MIPS_CP0FL_CONFIG3 __BIT(9) 547 #define MIPS_CP0FL_CONFIG4 __BIT(10) 548 #define MIPS_CP0FL_CONFIG5 __BIT(11) 549 #define MIPS_CP0FL_CONFIG6 __BIT(12) 550 #define MIPS_CP0FL_CONFIG7 __BIT(13) 551 #define MIPS_CP0FL_USERLOCAL __BIT(14) 552 #define MIPS_CP0FL_HWRENA __BIT(15) 553 554 /* 555 * cpu_cidflags defines, by company 556 */ 557 /* 558 * RMI company-specific cpu_cidflags 559 */ 560 #define MIPS_CIDFL_RMI_TYPE __BITS(2,0) 561 # define CIDFL_RMI_TYPE_XLR 0 562 # define CIDFL_RMI_TYPE_XLS 1 563 # define CIDFL_RMI_TYPE_XLP 2 564 #define MIPS_CIDFL_RMI_THREADS_MASK __BITS(6,3) 565 # define MIPS_CIDFL_RMI_THREADS_SHIFT 3 566 #define MIPS_CIDFL_RMI_CORES_MASK __BITS(10,7) 567 # define MIPS_CIDFL_RMI_CORES_SHIFT 7 568 # define LOG2_1 0 569 # define LOG2_2 1 570 # define LOG2_4 2 571 # define LOG2_8 3 572 # define MIPS_CIDFL_RMI_CPUS(ncores, nthreads) \ 573 ((LOG2_ ## ncores << MIPS_CIDFL_RMI_CORES_SHIFT) \ 574 |(LOG2_ ## nthreads << MIPS_CIDFL_RMI_THREADS_SHIFT)) 575 # define MIPS_CIDFL_RMI_NTHREADS(cidfl) \ 576 (1 << (((cidfl) & MIPS_CIDFL_RMI_THREADS_MASK) \ 577 >> MIPS_CIDFL_RMI_THREADS_SHIFT)) 578 # define MIPS_CIDFL_RMI_NCORES(cidfl) \ 579 (1 << (((cidfl) & MIPS_CIDFL_RMI_CORES_MASK) \ 580 >> MIPS_CIDFL_RMI_CORES_SHIFT)) 581 #define MIPS_CIDFL_RMI_L2SZ_MASK __BITS(14,11) 582 # define MIPS_CIDFL_RMI_L2SZ_SHIFT 11 583 # define RMI_L2SZ_256KB 0 584 # define RMI_L2SZ_512KB 1 585 # define RMI_L2SZ_1MB 2 586 # define RMI_L2SZ_2MB 3 587 # define RMI_L2SZ_4MB 4 588 # define MIPS_CIDFL_RMI_L2(l2sz) \ 589 (RMI_L2SZ_ ## l2sz << MIPS_CIDFL_RMI_L2SZ_SHIFT) 590 # define MIPS_CIDFL_RMI_L2SZ(cidfl) \ 591 ((256*1024) << (((cidfl) & MIPS_CIDFL_RMI_L2SZ_MASK) \ 592 >> MIPS_CIDFL_RMI_L2SZ_SHIFT)) 593 594 #endif /* _KERNEL */ 595 #endif /* _MIPS_LOCORE_H */ 596