Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 | /* SPDX-License-Identifier: GPL-2.0-only */ /* * Macros for accessing system registers with older binutils. * * Copyright (C) 2014 ARM Ltd. * Author: Catalin Marinas <catalin.marinas@arm.com> */ #ifndef __ASM_SYSREG_H #define __ASM_SYSREG_H #include <linux/bits.h> #include <linux/stringify.h> #include <asm/gpr-num.h> /* * ARMv8 ARM reserves the following encoding for system registers: * (Ref: ARMv8 ARM, Section: "System instruction class encoding overview", * C5.2, version:ARM DDI 0487A.f) * [20-19] : Op0 * [18-16] : Op1 * [15-12] : CRn * [11-8] : CRm * [7-5] : Op2 */ #define Op0_shift 19 #define Op0_mask 0x3 #define Op1_shift 16 #define Op1_mask 0x7 #define CRn_shift 12 #define CRn_mask 0xf #define CRm_shift 8 #define CRm_mask 0xf #define Op2_shift 5 #define Op2_mask 0x7 #define sys_reg(op0, op1, crn, crm, op2) \ (((op0) << Op0_shift) | ((op1) << Op1_shift) | \ ((crn) << CRn_shift) | ((crm) << CRm_shift) | \ ((op2) << Op2_shift)) #define sys_insn sys_reg #define sys_reg_Op0(id) (((id) >> Op0_shift) & Op0_mask) #define sys_reg_Op1(id) (((id) >> Op1_shift) & Op1_mask) #define sys_reg_CRn(id) (((id) >> CRn_shift) & CRn_mask) #define sys_reg_CRm(id) (((id) >> CRm_shift) & CRm_mask) #define sys_reg_Op2(id) (((id) >> Op2_shift) & Op2_mask) #ifndef CONFIG_BROKEN_GAS_INST #ifdef __ASSEMBLY__ // The space separator is omitted so that __emit_inst(x) can be parsed as // either an assembler directive or an assembler macro argument. #define __emit_inst(x) .inst(x) #else #define __emit_inst(x) ".inst " __stringify((x)) "\n\t" #endif #else /* CONFIG_BROKEN_GAS_INST */ #ifndef CONFIG_CPU_BIG_ENDIAN #define __INSTR_BSWAP(x) (x) #else /* CONFIG_CPU_BIG_ENDIAN */ #define __INSTR_BSWAP(x) ((((x) << 24) & 0xff000000) | \ (((x) << 8) & 0x00ff0000) | \ (((x) >> 8) & 0x0000ff00) | \ (((x) >> 24) & 0x000000ff)) #endif /* CONFIG_CPU_BIG_ENDIAN */ #ifdef __ASSEMBLY__ #define __emit_inst(x) .long __INSTR_BSWAP(x) #else /* __ASSEMBLY__ */ #define __emit_inst(x) ".long " __stringify(__INSTR_BSWAP(x)) "\n\t" #endif /* __ASSEMBLY__ */ #endif /* CONFIG_BROKEN_GAS_INST */ /* * Instructions for modifying PSTATE fields. * As per Arm ARM for v8-A, Section "C.5.1.3 op0 == 0b00, architectural hints, * barriers and CLREX, and PSTATE access", ARM DDI 0487 C.a, system instructions * for accessing PSTATE fields have the following encoding: * Op0 = 0, CRn = 4 * Op1, Op2 encodes the PSTATE field modified and defines the constraints. * CRm = Imm4 for the instruction. * Rt = 0x1f */ #define pstate_field(op1, op2) ((op1) << Op1_shift | (op2) << Op2_shift) #define PSTATE_Imm_shift CRm_shift #define SET_PSTATE(x, r) __emit_inst(0xd500401f | PSTATE_ ## r | ((!!x) << PSTATE_Imm_shift)) #define PSTATE_PAN pstate_field(0, 4) #define PSTATE_UAO pstate_field(0, 3) #define PSTATE_SSBS pstate_field(3, 1) #define PSTATE_DIT pstate_field(3, 2) #define PSTATE_TCO pstate_field(3, 4) #define SET_PSTATE_PAN(x) SET_PSTATE((x), PAN) #define SET_PSTATE_UAO(x) SET_PSTATE((x), UAO) #define SET_PSTATE_SSBS(x) SET_PSTATE((x), SSBS) #define SET_PSTATE_DIT(x) SET_PSTATE((x), DIT) #define SET_PSTATE_TCO(x) SET_PSTATE((x), TCO) #define set_pstate_pan(x) asm volatile(SET_PSTATE_PAN(x)) #define set_pstate_uao(x) asm volatile(SET_PSTATE_UAO(x)) #define set_pstate_ssbs(x) asm volatile(SET_PSTATE_SSBS(x)) #define set_pstate_dit(x) asm volatile(SET_PSTATE_DIT(x)) #define __SYS_BARRIER_INSN(CRm, op2, Rt) \ __emit_inst(0xd5000000 | sys_insn(0, 3, 3, (CRm), (op2)) | ((Rt) & 0x1f)) #define SB_BARRIER_INSN __SYS_BARRIER_INSN(0, 7, 31) #define SYS_DC_ISW sys_insn(1, 0, 7, 6, 2) #define SYS_DC_IGSW sys_insn(1, 0, 7, 6, 4) #define SYS_DC_IGDSW sys_insn(1, 0, 7, 6, 6) #define SYS_DC_CSW sys_insn(1, 0, 7, 10, 2) #define SYS_DC_CGSW sys_insn(1, 0, 7, 10, 4) #define SYS_DC_CGDSW sys_insn(1, 0, 7, 10, 6) #define SYS_DC_CISW sys_insn(1, 0, 7, 14, 2) #define SYS_DC_CIGSW sys_insn(1, 0, 7, 14, 4) #define SYS_DC_CIGDSW sys_insn(1, 0, 7, 14, 6) /* * Automatically generated definitions for system registers, the * manual encodings below are in the process of being converted to * come from here. The header relies on the definition of sys_reg() * earlier in this file. */ #include "asm/sysreg-defs.h" /* * System registers, organised loosely by encoding but grouped together * where the architected name contains an index. e.g. ID_MMFR<n>_EL1. */ #define SYS_SVCR_SMSTOP_SM_EL0 sys_reg(0, 3, 4, 2, 3) #define SYS_SVCR_SMSTART_SM_EL0 sys_reg(0, 3, 4, 3, 3) #define SYS_SVCR_SMSTOP_SMZA_EL0 sys_reg(0, 3, 4, 6, 3) #define SYS_DBGBVRn_EL1(n) sys_reg(2, 0, 0, n, 4) #define SYS_DBGBCRn_EL1(n) sys_reg(2, 0, 0, n, 5) #define SYS_DBGWVRn_EL1(n) sys_reg(2, 0, 0, n, 6) #define SYS_DBGWCRn_EL1(n) sys_reg(2, 0, 0, n, 7) #define SYS_MDRAR_EL1 sys_reg(2, 0, 1, 0, 0) #define SYS_OSLSR_EL1 sys_reg(2, 0, 1, 1, 4) #define OSLSR_EL1_OSLM_MASK (BIT(3) | BIT(0)) #define OSLSR_EL1_OSLM_NI 0 #define OSLSR_EL1_OSLM_IMPLEMENTED BIT(3) #define OSLSR_EL1_OSLK BIT(1) #define SYS_OSDLR_EL1 sys_reg(2, 0, 1, 3, 4) #define SYS_DBGPRCR_EL1 sys_reg(2, 0, 1, 4, 4) #define SYS_DBGCLAIMSET_EL1 sys_reg(2, 0, 7, 8, 6) #define SYS_DBGCLAIMCLR_EL1 sys_reg(2, 0, 7, 9, 6) #define SYS_DBGAUTHSTATUS_EL1 sys_reg(2, 0, 7, 14, 6) #define SYS_MDCCSR_EL0 sys_reg(2, 3, 0, 1, 0) #define SYS_DBGDTR_EL0 sys_reg(2, 3, 0, 4, 0) #define SYS_DBGDTRRX_EL0 sys_reg(2, 3, 0, 5, 0) #define SYS_DBGDTRTX_EL0 sys_reg(2, 3, 0, 5, 0) #define SYS_DBGVCR32_EL2 sys_reg(2, 4, 0, 7, 0) #define SYS_MIDR_EL1 sys_reg(3, 0, 0, 0, 0) #define SYS_MPIDR_EL1 sys_reg(3, 0, 0, 0, 5) #define SYS_REVIDR_EL1 sys_reg(3, 0, 0, 0, 6) #define SYS_ACTLR_EL1 sys_reg(3, 0, 1, 0, 1) #define SYS_RGSR_EL1 sys_reg(3, 0, 1, 0, 5) #define SYS_GCR_EL1 sys_reg(3, 0, 1, 0, 6) #define SYS_TRFCR_EL1 sys_reg(3, 0, 1, 2, 1) #define SYS_TCR_EL1 sys_reg(3, 0, 2, 0, 2) #define SYS_APIAKEYLO_EL1 sys_reg(3, 0, 2, 1, 0) #define SYS_APIAKEYHI_EL1 sys_reg(3, 0, 2, 1, 1) #define SYS_APIBKEYLO_EL1 sys_reg(3, 0, 2, 1, 2) #define SYS_APIBKEYHI_EL1 sys_reg(3, 0, 2, 1, 3) #define SYS_APDAKEYLO_EL1 sys_reg(3, 0, 2, 2, 0) #define SYS_APDAKEYHI_EL1 sys_reg(3, 0, 2, 2, 1) #define SYS_APDBKEYLO_EL1 sys_reg(3, 0, 2, 2, 2) #define SYS_APDBKEYHI_EL1 sys_reg(3, 0, 2, 2, 3) #define SYS_APGAKEYLO_EL1 sys_reg(3, 0, 2, 3, 0) #define SYS_APGAKEYHI_EL1 sys_reg(3, 0, 2, 3, 1) #define SYS_SPSR_EL1 sys_reg(3, 0, 4, 0, 0) #define SYS_ELR_EL1 sys_reg(3, 0, 4, 0, 1) #define SYS_ICC_PMR_EL1 sys_reg(3, 0, 4, 6, 0) #define SYS_AFSR0_EL1 sys_reg(3, 0, 5, 1, 0) #define SYS_AFSR1_EL1 sys_reg(3, 0, 5, 1, 1) #define SYS_ESR_EL1 sys_reg(3, 0, 5, 2, 0) #define SYS_ERRIDR_EL1 sys_reg(3, 0, 5, 3, 0) #define SYS_ERRSELR_EL1 sys_reg(3, 0, 5, 3, 1) #define SYS_ERXFR_EL1 sys_reg(3, 0, 5, 4, 0) #define SYS_ERXCTLR_EL1 sys_reg(3, 0, 5, 4, 1) #define SYS_ERXSTATUS_EL1 sys_reg(3, 0, 5, 4, 2) #define SYS_ERXADDR_EL1 sys_reg(3, 0, 5, 4, 3) #define SYS_ERXMISC0_EL1 sys_reg(3, 0, 5, 5, 0) #define SYS_ERXMISC1_EL1 sys_reg(3, 0, 5, 5, 1) #define SYS_TFSR_EL1 sys_reg(3, 0, 5, 6, 0) #define SYS_TFSRE0_EL1 sys_reg(3, 0, 5, 6, 1) #define SYS_PAR_EL1 sys_reg(3, 0, 7, 4, 0) #define SYS_PAR_EL1_F BIT(0) #define SYS_PAR_EL1_FST GENMASK(6, 1) /*** Statistical Profiling Extension ***/ #define PMSEVFR_EL1_RES0_IMP \ (GENMASK_ULL(47, 32) | GENMASK_ULL(23, 16) | GENMASK_ULL(11, 8) |\ BIT_ULL(6) | BIT_ULL(4) | BIT_ULL(2) | BIT_ULL(0)) #define PMSEVFR_EL1_RES0_V1P1 \ (PMSEVFR_EL1_RES0_IMP & ~(BIT_ULL(18) | BIT_ULL(17) | BIT_ULL(11))) #define PMSEVFR_EL1_RES0_V1P2 \ (PMSEVFR_EL1_RES0_V1P1 & ~BIT_ULL(6)) /* Buffer error reporting */ #define PMBSR_EL1_FAULT_FSC_SHIFT PMBSR_EL1_MSS_SHIFT #define PMBSR_EL1_FAULT_FSC_MASK PMBSR_EL1_MSS_MASK #define PMBSR_EL1_BUF_BSC_SHIFT PMBSR_EL1_MSS_SHIFT #define PMBSR_EL1_BUF_BSC_MASK PMBSR_EL1_MSS_MASK #define PMBSR_EL1_BUF_BSC_FULL 0x1UL /*** End of Statistical Profiling Extension ***/ #define TRBSR_EL1_BSC_MASK GENMASK(5, 0) #define TRBSR_EL1_BSC_SHIFT 0 #define SYS_PMINTENSET_EL1 sys_reg(3, 0, 9, 14, 1) #define SYS_PMINTENCLR_EL1 sys_reg(3, 0, 9, 14, 2) #define SYS_PMMIR_EL1 sys_reg(3, 0, 9, 14, 6) #define SYS_MAIR_EL1 sys_reg(3, 0, 10, 2, 0) #define SYS_AMAIR_EL1 sys_reg(3, 0, 10, 3, 0) #define SYS_VBAR_EL1 sys_reg(3, 0, 12, 0, 0) #define SYS_DISR_EL1 sys_reg(3, 0, 12, 1, 1) #define SYS_ICC_IAR0_EL1 sys_reg(3, 0, 12, 8, 0) #define SYS_ICC_EOIR0_EL1 sys_reg(3, 0, 12, 8, 1) #define SYS_ICC_HPPIR0_EL1 sys_reg(3, 0, 12, 8, 2) #define SYS_ICC_BPR0_EL1 sys_reg(3, 0, 12, 8, 3) #define SYS_ICC_AP0Rn_EL1(n) sys_reg(3, 0, 12, 8, 4 | n) #define SYS_ICC_AP0R0_EL1 SYS_ICC_AP0Rn_EL1(0) #define SYS_ICC_AP0R1_EL1 SYS_ICC_AP0Rn_EL1(1) #define SYS_ICC_AP0R2_EL1 SYS_ICC_AP0Rn_EL1(2) #define SYS_ICC_AP0R3_EL1 SYS_ICC_AP0Rn_EL1(3) #define SYS_ICC_AP1Rn_EL1(n) sys_reg(3, 0, 12, 9, n) #define SYS_ICC_AP1R0_EL1 SYS_ICC_AP1Rn_EL1(0) #define SYS_ICC_AP1R1_EL1 SYS_ICC_AP1Rn_EL1(1) #define SYS_ICC_AP1R2_EL1 SYS_ICC_AP1Rn_EL1(2) #define SYS_ICC_AP1R3_EL1 SYS_ICC_AP1Rn_EL1(3) #define SYS_ICC_DIR_EL1 sys_reg(3, 0, 12, 11, 1) #define SYS_ICC_RPR_EL1 sys_reg(3, 0, 12, 11, 3) #define SYS_ICC_SGI1R_EL1 sys_reg(3, 0, 12, 11, 5) #define SYS_ICC_ASGI1R_EL1 sys_reg(3, 0, 12, 11, 6) #define SYS_ICC_SGI0R_EL1 sys_reg(3, 0, 12, 11, 7) #define SYS_ICC_IAR1_EL1 sys_reg(3, 0, 12, 12, 0) #define SYS_ICC_EOIR1_EL1 sys_reg(3, 0, 12, 12, 1) #define SYS_ICC_HPPIR1_EL1 sys_reg(3, 0, 12, 12, 2) #define SYS_ICC_BPR1_EL1 sys_reg(3, 0, 12, 12, 3) #define SYS_ICC_CTLR_EL1 sys_reg(3, 0, 12, 12, 4) #define SYS_ICC_SRE_EL1 sys_reg(3, 0, 12, 12, 5) #define SYS_ICC_IGRPEN0_EL1 sys_reg(3, 0, 12, 12, 6) #define SYS_ICC_IGRPEN1_EL1 sys_reg(3, 0, 12, 12, 7) #define SYS_CNTKCTL_EL1 sys_reg(3, 0, 14, 1, 0) #define SYS_AIDR_EL1 sys_reg(3, 1, 0, 0, 7) #define SYS_RNDR_EL0 sys_reg(3, 3, 2, 4, 0) #define SYS_RNDRRS_EL0 sys_reg(3, 3, 2, 4, 1) #define SYS_PMCR_EL0 sys_reg(3, 3, 9, 12, 0) #define SYS_PMCNTENSET_EL0 sys_reg(3, 3, 9, 12, 1) #define SYS_PMCNTENCLR_EL0 sys_reg(3, 3, 9, 12, 2) #define SYS_PMOVSCLR_EL0 sys_reg(3, 3, 9, 12, 3) #define SYS_PMSWINC_EL0 sys_reg(3, 3, 9, 12, 4) #define SYS_PMSELR_EL0 sys_reg(3, 3, 9, 12, 5) #define SYS_PMCEID0_EL0 sys_reg(3, 3, 9, 12, 6) #define SYS_PMCEID1_EL0 sys_reg(3, 3, 9, 12, 7) #define SYS_PMCCNTR_EL0 sys_reg(3, 3, 9, 13, 0) #define SYS_PMXEVTYPER_EL0 sys_reg(3, 3, 9, 13, 1) #define SYS_PMXEVCNTR_EL0 sys_reg(3, 3, 9, 13, 2) #define SYS_PMUSERENR_EL0 sys_reg(3, 3, 9, 14, 0) #define SYS_PMOVSSET_EL0 sys_reg(3, 3, 9, 14, 3) #define SYS_TPIDR_EL0 sys_reg(3, 3, 13, 0, 2) #define SYS_TPIDRRO_EL0 sys_reg(3, 3, 13, 0, 3) #define SYS_TPIDR2_EL0 sys_reg(3, 3, 13, 0, 5) #define SYS_SCXTNUM_EL0 sys_reg(3, 3, 13, 0, 7) /* Definitions for system register interface to AMU for ARMv8.4 onwards */ #define SYS_AM_EL0(crm, op2) sys_reg(3, 3, 13, (crm), (op2)) #define SYS_AMCR_EL0 SYS_AM_EL0(2, 0) #define SYS_AMCFGR_EL0 SYS_AM_EL0(2, 1) #define SYS_AMCGCR_EL0 SYS_AM_EL0(2, 2) #define SYS_AMUSERENR_EL0 SYS_AM_EL0(2, 3) #define SYS_AMCNTENCLR0_EL0 SYS_AM_EL0(2, 4) #define SYS_AMCNTENSET0_EL0 SYS_AM_EL0(2, 5) #define SYS_AMCNTENCLR1_EL0 SYS_AM_EL0(3, 0) #define SYS_AMCNTENSET1_EL0 SYS_AM_EL0(3, 1) /* * Group 0 of activity monitors (architected): * op0 op1 CRn CRm op2 * Counter: 11 011 1101 010:n<3> n<2:0> * Type: 11 011 1101 011:n<3> n<2:0> * n: 0-15 * * Group 1 of activity monitors (auxiliary): * op0 op1 CRn CRm op2 * Counter: 11 011 1101 110:n<3> n<2:0> * Type: 11 011 1101 111:n<3> n<2:0> * n: 0-15 */ #define SYS_AMEVCNTR0_EL0(n) SYS_AM_EL0(4 + ((n) >> 3), (n) & 7) #define SYS_AMEVTYPER0_EL0(n) SYS_AM_EL0(6 + ((n) >> 3), (n) & 7) #define SYS_AMEVCNTR1_EL0(n) SYS_AM_EL0(12 + ((n) >> 3), (n) & 7) #define SYS_AMEVTYPER1_EL0(n) SYS_AM_EL0(14 + ((n) >> 3), (n) & 7) /* AMU v1: Fixed (architecturally defined) activity monitors */ #define SYS_AMEVCNTR0_CORE_EL0 SYS_AMEVCNTR0_EL0(0) #define SYS_AMEVCNTR0_CONST_EL0 SYS_AMEVCNTR0_EL0(1) #define SYS_AMEVCNTR0_INST_RET_EL0 SYS_AMEVCNTR0_EL0(2) #define SYS_AMEVCNTR0_MEM_STALL SYS_AMEVCNTR0_EL0(3) #define SYS_CNTFRQ_EL0 sys_reg(3, 3, 14, 0, 0) #define SYS_CNTPCT_EL0 sys_reg(3, 3, 14, 0, 1) #define SYS_CNTPCTSS_EL0 sys_reg(3, 3, 14, 0, 5) #define SYS_CNTVCTSS_EL0 sys_reg(3, 3, 14, 0, 6) #define SYS_CNTP_TVAL_EL0 sys_reg(3, 3, 14, 2, 0) #define SYS_CNTP_CTL_EL0 sys_reg(3, 3, 14, 2, 1) #define SYS_CNTP_CVAL_EL0 sys_reg(3, 3, 14, 2, 2) #define SYS_CNTV_CTL_EL0 sys_reg(3, 3, 14, 3, 1) #define SYS_CNTV_CVAL_EL0 sys_reg(3, 3, 14, 3, 2) #define SYS_AARCH32_CNTP_TVAL sys_reg(0, 0, 14, 2, 0) #define SYS_AARCH32_CNTP_CTL sys_reg(0, 0, 14, 2, 1) #define SYS_AARCH32_CNTPCT sys_reg(0, 0, 0, 14, 0) #define SYS_AARCH32_CNTP_CVAL sys_reg(0, 2, 0, 14, 0) #define SYS_AARCH32_CNTPCTSS sys_reg(0, 8, 0, 14, 0) #define __PMEV_op2(n) ((n) & 0x7) #define __CNTR_CRm(n) (0x8 | (((n) >> 3) & 0x3)) #define SYS_PMEVCNTRn_EL0(n) sys_reg(3, 3, 14, __CNTR_CRm(n), __PMEV_op2(n)) #define __TYPER_CRm(n) (0xc | (((n) >> 3) & 0x3)) #define SYS_PMEVTYPERn_EL0(n) sys_reg(3, 3, 14, __TYPER_CRm(n), __PMEV_op2(n)) #define SYS_PMCCFILTR_EL0 sys_reg(3, 3, 14, 15, 7) #define SYS_VPIDR_EL2 sys_reg(3, 4, 0, 0, 0) #define SYS_VMPIDR_EL2 sys_reg(3, 4, 0, 0, 5) #define SYS_SCTLR_EL2 sys_reg(3, 4, 1, 0, 0) #define SYS_ACTLR_EL2 sys_reg(3, 4, 1, 0, 1) #define SYS_HCR_EL2 sys_reg(3, 4, 1, 1, 0) #define SYS_MDCR_EL2 sys_reg(3, 4, 1, 1, 1) #define SYS_CPTR_EL2 sys_reg(3, 4, 1, 1, 2) #define SYS_HSTR_EL2 sys_reg(3, 4, 1, 1, 3) #define SYS_HACR_EL2 sys_reg(3, 4, 1, 1, 7) #define SYS_TTBR0_EL2 sys_reg(3, 4, 2, 0, 0) #define SYS_TTBR1_EL2 sys_reg(3, 4, 2, 0, 1) #define SYS_TCR_EL2 sys_reg(3, 4, 2, 0, 2) #define SYS_VTTBR_EL2 sys_reg(3, 4, 2, 1, 0) #define SYS_VTCR_EL2 sys_reg(3, 4, 2, 1, 2) #define SYS_TRFCR_EL2 sys_reg(3, 4, 1, 2, 1) #define SYS_HDFGRTR_EL2 sys_reg(3, 4, 3, 1, 4) #define SYS_HDFGWTR_EL2 sys_reg(3, 4, 3, 1, 5) #define SYS_HAFGRTR_EL2 sys_reg(3, 4, 3, 1, 6) #define SYS_SPSR_EL2 sys_reg(3, 4, 4, 0, 0) #define SYS_ELR_EL2 sys_reg(3, 4, 4, 0, 1) #define SYS_SP_EL1 sys_reg(3, 4, 4, 1, 0) #define SYS_IFSR32_EL2 sys_reg(3, 4, 5, 0, 1) #define SYS_AFSR0_EL2 sys_reg(3, 4, 5, 1, 0) #define SYS_AFSR1_EL2 sys_reg(3, 4, 5, 1, 1) #define SYS_ESR_EL2 sys_reg(3, 4, 5, 2, 0) #define SYS_VSESR_EL2 sys_reg(3, 4, 5, 2, 3) #define SYS_FPEXC32_EL2 sys_reg(3, 4, 5, 3, 0) #define SYS_TFSR_EL2 sys_reg(3, 4, 5, 6, 0) #define SYS_FAR_EL2 sys_reg(3, 4, 6, 0, 0) #define SYS_HPFAR_EL2 sys_reg(3, 4, 6, 0, 4) #define SYS_MAIR_EL2 sys_reg(3, 4, 10, 2, 0) #define SYS_AMAIR_EL2 sys_reg(3, 4, 10, 3, 0) #define SYS_VBAR_EL2 sys_reg(3, 4, 12, 0, 0) #define SYS_RVBAR_EL2 sys_reg(3, 4, 12, 0, 1) #define SYS_RMR_EL2 sys_reg(3, 4, 12, 0, 2) #define SYS_VDISR_EL2 sys_reg(3, 4, 12, 1, 1) #define __SYS__AP0Rx_EL2(x) sys_reg(3, 4, 12, 8, x) #define SYS_ICH_AP0R0_EL2 __SYS__AP0Rx_EL2(0) #define SYS_ICH_AP0R1_EL2 __SYS__AP0Rx_EL2(1) #define SYS_ICH_AP0R2_EL2 __SYS__AP0Rx_EL2(2) #define SYS_ICH_AP0R3_EL2 __SYS__AP0Rx_EL2(3) #define __SYS__AP1Rx_EL2(x) sys_reg(3, 4, 12, 9, x) #define SYS_ICH_AP1R0_EL2 __SYS__AP1Rx_EL2(0) #define SYS_ICH_AP1R1_EL2 __SYS__AP1Rx_EL2(1) #define SYS_ICH_AP1R2_EL2 __SYS__AP1Rx_EL2(2) #define SYS_ICH_AP1R3_EL2 __SYS__AP1Rx_EL2(3) #define SYS_ICH_VSEIR_EL2 sys_reg(3, 4, 12, 9, 4) #define SYS_ICC_SRE_EL2 sys_reg(3, 4, 12, 9, 5) #define SYS_ICH_HCR_EL2 sys_reg(3, 4, 12, 11, 0) #define SYS_ICH_VTR_EL2 sys_reg(3, 4, 12, 11, 1) #define SYS_ICH_MISR_EL2 sys_reg(3, 4, 12, 11, 2) #define SYS_ICH_EISR_EL2 sys_reg(3, 4, 12, 11, 3) #define SYS_ICH_ELRSR_EL2 sys_reg(3, 4, 12, 11, 5) #define SYS_ICH_VMCR_EL2 sys_reg(3, 4, 12, 11, 7) #define __SYS__LR0_EL2(x) sys_reg(3, 4, 12, 12, x) #define SYS_ICH_LR0_EL2 __SYS__LR0_EL2(0) #define SYS_ICH_LR1_EL2 __SYS__LR0_EL2(1) #define SYS_ICH_LR2_EL2 __SYS__LR0_EL2(2) #define SYS_ICH_LR3_EL2 __SYS__LR0_EL2(3) #define SYS_ICH_LR4_EL2 __SYS__LR0_EL2(4) #define SYS_ICH_LR5_EL2 __SYS__LR0_EL2(5) #define SYS_ICH_LR6_EL2 __SYS__LR0_EL2(6) #define SYS_ICH_LR7_EL2 __SYS__LR0_EL2(7) #define __SYS__LR8_EL2(x) sys_reg(3, 4, 12, 13, x) #define SYS_ICH_LR8_EL2 __SYS__LR8_EL2(0) #define SYS_ICH_LR9_EL2 __SYS__LR8_EL2(1) #define SYS_ICH_LR10_EL2 __SYS__LR8_EL2(2) #define SYS_ICH_LR11_EL2 __SYS__LR8_EL2(3) #define SYS_ICH_LR12_EL2 __SYS__LR8_EL2(4) #define SYS_ICH_LR13_EL2 __SYS__LR8_EL2(5) #define SYS_ICH_LR14_EL2 __SYS__LR8_EL2(6) #define SYS_ICH_LR15_EL2 __SYS__LR8_EL2(7) #define SYS_CONTEXTIDR_EL2 sys_reg(3, 4, 13, 0, 1) #define SYS_TPIDR_EL2 sys_reg(3, 4, 13, 0, 2) #define SYS_CNTVOFF_EL2 sys_reg(3, 4, 14, 0, 3) #define SYS_CNTHCTL_EL2 sys_reg(3, 4, 14, 1, 0) /* VHE encodings for architectural EL0/1 system registers */ #define SYS_SCTLR_EL12 sys_reg(3, 5, 1, 0, 0) #define SYS_TTBR0_EL12 sys_reg(3, 5, 2, 0, 0) #define SYS_TTBR1_EL12 sys_reg(3, 5, 2, 0, 1) #define SYS_TCR_EL12 sys_reg(3, 5, 2, 0, 2) #define SYS_SPSR_EL12 sys_reg(3, 5, 4, 0, 0) #define SYS_ELR_EL12 sys_reg(3, 5, 4, 0, 1) #define SYS_AFSR0_EL12 sys_reg(3, 5, 5, 1, 0) #define SYS_AFSR1_EL12 sys_reg(3, 5, 5, 1, 1) #define SYS_ESR_EL12 sys_reg(3, 5, 5, 2, 0) #define SYS_TFSR_EL12 sys_reg(3, 5, 5, 6, 0) #define SYS_MAIR_EL12 sys_reg(3, 5, 10, 2, 0) #define SYS_AMAIR_EL12 sys_reg(3, 5, 10, 3, 0) #define SYS_VBAR_EL12 sys_reg(3, 5, 12, 0, 0) #define SYS_CNTKCTL_EL12 sys_reg(3, 5, 14, 1, 0) #define SYS_CNTP_TVAL_EL02 sys_reg(3, 5, 14, 2, 0) #define SYS_CNTP_CTL_EL02 sys_reg(3, 5, 14, 2, 1) #define SYS_CNTP_CVAL_EL02 sys_reg(3, 5, 14, 2, 2) #define SYS_CNTV_TVAL_EL02 sys_reg(3, 5, 14, 3, 0) #define SYS_CNTV_CTL_EL02 sys_reg(3, 5, 14, 3, 1) #define SYS_CNTV_CVAL_EL02 sys_reg(3, 5, 14, 3, 2) #define SYS_SP_EL2 sys_reg(3, 6, 4, 1, 0) /* Common SCTLR_ELx flags. */ #define SCTLR_ELx_ENTP2 (BIT(60)) #define SCTLR_ELx_DSSBS (BIT(44)) #define SCTLR_ELx_ATA (BIT(43)) #define SCTLR_ELx_EE_SHIFT 25 #define SCTLR_ELx_ENIA_SHIFT 31 #define SCTLR_ELx_ITFSB (BIT(37)) #define SCTLR_ELx_ENIA (BIT(SCTLR_ELx_ENIA_SHIFT)) #define SCTLR_ELx_ENIB (BIT(30)) #define SCTLR_ELx_LSMAOE (BIT(29)) #define SCTLR_ELx_nTLSMD (BIT(28)) #define SCTLR_ELx_ENDA (BIT(27)) #define SCTLR_ELx_EE (BIT(SCTLR_ELx_EE_SHIFT)) #define SCTLR_ELx_EIS (BIT(22)) #define SCTLR_ELx_IESB (BIT(21)) #define SCTLR_ELx_TSCXT (BIT(20)) #define SCTLR_ELx_WXN (BIT(19)) #define SCTLR_ELx_ENDB (BIT(13)) #define SCTLR_ELx_I (BIT(12)) #define SCTLR_ELx_EOS (BIT(11)) #define SCTLR_ELx_SA (BIT(3)) #define SCTLR_ELx_C (BIT(2)) #define SCTLR_ELx_A (BIT(1)) #define SCTLR_ELx_M (BIT(0)) /* SCTLR_EL2 specific flags. */ #define SCTLR_EL2_RES1 ((BIT(4)) | (BIT(5)) | (BIT(11)) | (BIT(16)) | \ (BIT(18)) | (BIT(22)) | (BIT(23)) | (BIT(28)) | \ (BIT(29))) #define SCTLR_EL2_BT (BIT(36)) #ifdef CONFIG_CPU_BIG_ENDIAN #define ENDIAN_SET_EL2 SCTLR_ELx_EE #else #define ENDIAN_SET_EL2 0 #endif #define INIT_SCTLR_EL2_MMU_ON \ (SCTLR_ELx_M | SCTLR_ELx_C | SCTLR_ELx_SA | SCTLR_ELx_I | \ SCTLR_ELx_IESB | SCTLR_ELx_WXN | ENDIAN_SET_EL2 | \ SCTLR_ELx_ITFSB | SCTLR_EL2_RES1) #define INIT_SCTLR_EL2_MMU_OFF \ (SCTLR_EL2_RES1 | ENDIAN_SET_EL2) /* SCTLR_EL1 specific flags. */ #ifdef CONFIG_CPU_BIG_ENDIAN #define ENDIAN_SET_EL1 (SCTLR_EL1_E0E | SCTLR_ELx_EE) #else #define ENDIAN_SET_EL1 0 #endif #define INIT_SCTLR_EL1_MMU_OFF \ (ENDIAN_SET_EL1 | SCTLR_EL1_LSMAOE | SCTLR_EL1_nTLSMD | \ SCTLR_EL1_EIS | SCTLR_EL1_TSCXT | SCTLR_EL1_EOS) #define INIT_SCTLR_EL1_MMU_ON \ (SCTLR_ELx_M | SCTLR_ELx_C | SCTLR_ELx_SA | \ SCTLR_EL1_SA0 | SCTLR_EL1_SED | SCTLR_ELx_I | \ SCTLR_EL1_DZE | SCTLR_EL1_UCT | SCTLR_EL1_nTWE | \ SCTLR_ELx_IESB | SCTLR_EL1_SPAN | SCTLR_ELx_ITFSB | \ ENDIAN_SET_EL1 | SCTLR_EL1_UCI | SCTLR_EL1_EPAN | \ SCTLR_EL1_LSMAOE | SCTLR_EL1_nTLSMD | SCTLR_EL1_EIS | \ SCTLR_EL1_TSCXT | SCTLR_EL1_EOS) /* MAIR_ELx memory attributes (used by Linux) */ #define MAIR_ATTR_DEVICE_nGnRnE UL(0x00) #define MAIR_ATTR_DEVICE_nGnRE UL(0x04) #define MAIR_ATTR_NORMAL_NC UL(0x44) #define MAIR_ATTR_NORMAL_TAGGED UL(0xf0) #define MAIR_ATTR_NORMAL UL(0xff) #define MAIR_ATTR_MASK UL(0xff) /* Position the attr at the correct index */ #define MAIR_ATTRIDX(attr, idx) ((attr) << ((idx) * 8)) /* id_aa64pfr0 */ #define ID_AA64PFR0_EL1_ELx_64BIT_ONLY 0x1 #define ID_AA64PFR0_EL1_ELx_32BIT_64BIT 0x2 /* id_aa64mmfr0 */ #define ID_AA64MMFR0_EL1_TGRAN4_SUPPORTED_MIN 0x0 #define ID_AA64MMFR0_EL1_TGRAN4_SUPPORTED_MAX 0x7 #define ID_AA64MMFR0_EL1_TGRAN64_SUPPORTED_MIN 0x0 #define ID_AA64MMFR0_EL1_TGRAN64_SUPPORTED_MAX 0x7 #define ID_AA64MMFR0_EL1_TGRAN16_SUPPORTED_MIN 0x1 #define ID_AA64MMFR0_EL1_TGRAN16_SUPPORTED_MAX 0xf #define ARM64_MIN_PARANGE_BITS 32 #define ID_AA64MMFR0_EL1_TGRAN_2_SUPPORTED_DEFAULT 0x0 #define ID_AA64MMFR0_EL1_TGRAN_2_SUPPORTED_NONE 0x1 #define ID_AA64MMFR0_EL1_TGRAN_2_SUPPORTED_MIN 0x2 #define ID_AA64MMFR0_EL1_TGRAN_2_SUPPORTED_MAX 0x7 #ifdef CONFIG_ARM64_PA_BITS_52 #define ID_AA64MMFR0_EL1_PARANGE_MAX ID_AA64MMFR0_EL1_PARANGE_52 #else #define ID_AA64MMFR0_EL1_PARANGE_MAX ID_AA64MMFR0_EL1_PARANGE_48 #endif #if defined(CONFIG_ARM64_4K_PAGES) #define ID_AA64MMFR0_EL1_TGRAN_SHIFT ID_AA64MMFR0_EL1_TGRAN4_SHIFT #define ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MIN ID_AA64MMFR0_EL1_TGRAN4_SUPPORTED_MIN #define ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MAX ID_AA64MMFR0_EL1_TGRAN4_SUPPORTED_MAX #define ID_AA64MMFR0_EL1_TGRAN_2_SHIFT ID_AA64MMFR0_EL1_TGRAN4_2_SHIFT #elif defined(CONFIG_ARM64_16K_PAGES) #define ID_AA64MMFR0_EL1_TGRAN_SHIFT ID_AA64MMFR0_EL1_TGRAN16_SHIFT #define ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MIN ID_AA64MMFR0_EL1_TGRAN16_SUPPORTED_MIN #define ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MAX ID_AA64MMFR0_EL1_TGRAN16_SUPPORTED_MAX #define ID_AA64MMFR0_EL1_TGRAN_2_SHIFT ID_AA64MMFR0_EL1_TGRAN16_2_SHIFT #elif defined(CONFIG_ARM64_64K_PAGES) #define ID_AA64MMFR0_EL1_TGRAN_SHIFT ID_AA64MMFR0_EL1_TGRAN64_SHIFT #define ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MIN ID_AA64MMFR0_EL1_TGRAN64_SUPPORTED_MIN #define ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MAX ID_AA64MMFR0_EL1_TGRAN64_SUPPORTED_MAX #define ID_AA64MMFR0_EL1_TGRAN_2_SHIFT ID_AA64MMFR0_EL1_TGRAN64_2_SHIFT #endif #define CPACR_EL1_FPEN_EL1EN (BIT(20)) /* enable EL1 access */ #define CPACR_EL1_FPEN_EL0EN (BIT(21)) /* enable EL0 access, if EL1EN set */ #define CPACR_EL1_SMEN_EL1EN (BIT(24)) /* enable EL1 access */ #define CPACR_EL1_SMEN_EL0EN (BIT(25)) /* enable EL0 access, if EL1EN set */ #define CPACR_EL1_ZEN_EL1EN (BIT(16)) /* enable EL1 access */ #define CPACR_EL1_ZEN_EL0EN (BIT(17)) /* enable EL0 access, if EL1EN set */ /* GCR_EL1 Definitions */ #define SYS_GCR_EL1_RRND (BIT(16)) #define SYS_GCR_EL1_EXCL_MASK 0xffffUL #define KERNEL_GCR_EL1 (SYS_GCR_EL1_RRND | KERNEL_GCR_EL1_EXCL) /* RGSR_EL1 Definitions */ #define SYS_RGSR_EL1_TAG_MASK 0xfUL #define SYS_RGSR_EL1_SEED_SHIFT 8 #define SYS_RGSR_EL1_SEED_MASK 0xffffUL /* TFSR{,E0}_EL1 bit definitions */ #define SYS_TFSR_EL1_TF0_SHIFT 0 #define SYS_TFSR_EL1_TF1_SHIFT 1 #define SYS_TFSR_EL1_TF0 (UL(1) << SYS_TFSR_EL1_TF0_SHIFT) #define SYS_TFSR_EL1_TF1 (UL(1) << SYS_TFSR_EL1_TF1_SHIFT) /* Safe value for MPIDR_EL1: Bit31:RES1, Bit30:U:0, Bit24:MT:0 */ #define SYS_MPIDR_SAFE_VAL (BIT(31)) #define TRFCR_ELx_TS_SHIFT 5 #define TRFCR_ELx_TS_MASK ((0x3UL) << TRFCR_ELx_TS_SHIFT) #define TRFCR_ELx_TS_VIRTUAL ((0x1UL) << TRFCR_ELx_TS_SHIFT) #define TRFCR_ELx_TS_GUEST_PHYSICAL ((0x2UL) << TRFCR_ELx_TS_SHIFT) #define TRFCR_ELx_TS_PHYSICAL ((0x3UL) << TRFCR_ELx_TS_SHIFT) #define TRFCR_EL2_CX BIT(3) #define TRFCR_ELx_ExTRE BIT(1) #define TRFCR_ELx_E0TRE BIT(0) /* GIC Hypervisor interface registers */ /* ICH_MISR_EL2 bit definitions */ #define ICH_MISR_EOI (1 << 0) #define ICH_MISR_U (1 << 1) /* ICH_LR*_EL2 bit definitions */ #define ICH_LR_VIRTUAL_ID_MASK ((1ULL << 32) - 1) #define ICH_LR_EOI (1ULL << 41) #define ICH_LR_GROUP (1ULL << 60) #define ICH_LR_HW (1ULL << 61) #define ICH_LR_STATE (3ULL << 62) #define ICH_LR_PENDING_BIT (1ULL << 62) #define ICH_LR_ACTIVE_BIT (1ULL << 63) #define ICH_LR_PHYS_ID_SHIFT 32 #define ICH_LR_PHYS_ID_MASK (0x3ffULL << ICH_LR_PHYS_ID_SHIFT) #define ICH_LR_PRIORITY_SHIFT 48 #define ICH_LR_PRIORITY_MASK (0xffULL << ICH_LR_PRIORITY_SHIFT) /* ICH_HCR_EL2 bit definitions */ #define ICH_HCR_EN (1 << 0) #define ICH_HCR_UIE (1 << 1) #define ICH_HCR_NPIE (1 << 3) #define ICH_HCR_TC (1 << 10) #define ICH_HCR_TALL0 (1 << 11) #define ICH_HCR_TALL1 (1 << 12) #define ICH_HCR_TDIR (1 << 14) #define ICH_HCR_EOIcount_SHIFT 27 #define ICH_HCR_EOIcount_MASK (0x1f << ICH_HCR_EOIcount_SHIFT) /* ICH_VMCR_EL2 bit definitions */ #define ICH_VMCR_ACK_CTL_SHIFT 2 #define ICH_VMCR_ACK_CTL_MASK (1 << ICH_VMCR_ACK_CTL_SHIFT) #define ICH_VMCR_FIQ_EN_SHIFT 3 #define ICH_VMCR_FIQ_EN_MASK (1 << ICH_VMCR_FIQ_EN_SHIFT) #define ICH_VMCR_CBPR_SHIFT 4 #define ICH_VMCR_CBPR_MASK (1 << ICH_VMCR_CBPR_SHIFT) #define ICH_VMCR_EOIM_SHIFT 9 #define ICH_VMCR_EOIM_MASK (1 << ICH_VMCR_EOIM_SHIFT) #define ICH_VMCR_BPR1_SHIFT 18 #define ICH_VMCR_BPR1_MASK (7 << ICH_VMCR_BPR1_SHIFT) #define ICH_VMCR_BPR0_SHIFT 21 #define ICH_VMCR_BPR0_MASK (7 << ICH_VMCR_BPR0_SHIFT) #define ICH_VMCR_PMR_SHIFT 24 #define ICH_VMCR_PMR_MASK (0xffUL << ICH_VMCR_PMR_SHIFT) #define ICH_VMCR_ENG0_SHIFT 0 #define ICH_VMCR_ENG0_MASK (1 << ICH_VMCR_ENG0_SHIFT) #define ICH_VMCR_ENG1_SHIFT 1 #define ICH_VMCR_ENG1_MASK (1 << ICH_VMCR_ENG1_SHIFT) /* ICH_VTR_EL2 bit definitions */ #define ICH_VTR_PRI_BITS_SHIFT 29 #define ICH_VTR_PRI_BITS_MASK (7 << ICH_VTR_PRI_BITS_SHIFT) #define ICH_VTR_ID_BITS_SHIFT 23 #define ICH_VTR_ID_BITS_MASK (7 << ICH_VTR_ID_BITS_SHIFT) #define ICH_VTR_SEIS_SHIFT 22 #define ICH_VTR_SEIS_MASK (1 << ICH_VTR_SEIS_SHIFT) #define ICH_VTR_A3V_SHIFT 21 #define ICH_VTR_A3V_MASK (1 << ICH_VTR_A3V_SHIFT) #define ICH_VTR_TDS_SHIFT 19 #define ICH_VTR_TDS_MASK (1 << ICH_VTR_TDS_SHIFT) /* * Permission Indirection Extension (PIE) permission encodings. * Encodings with the _O suffix, have overlays applied (Permission Overlay Extension). */ #define PIE_NONE_O UL(0x0) #define PIE_R_O UL(0x1) #define PIE_X_O UL(0x2) #define PIE_RX_O UL(0x3) #define PIE_RW_O UL(0x5) #define PIE_RWnX_O UL(0x6) #define PIE_RWX_O UL(0x7) #define PIE_R UL(0x8) #define PIE_GCS UL(0x9) #define PIE_RX UL(0xa) #define PIE_RW UL(0xc) #define PIE_RWX UL(0xe) #define PIRx_ELx_PERM(idx, perm) ((perm) << ((idx) * 4)) #define ARM64_FEATURE_FIELD_BITS 4 /* Defined for compatibility only, do not add new users. */ #define ARM64_FEATURE_MASK(x) (x##_MASK) #ifdef __ASSEMBLY__ .macro mrs_s, rt, sreg __emit_inst(0xd5200000|(\sreg)|(.L__gpr_num_\rt)) .endm .macro msr_s, sreg, rt __emit_inst(0xd5000000|(\sreg)|(.L__gpr_num_\rt)) .endm #else #include <linux/bitfield.h> #include <linux/build_bug.h> #include <linux/types.h> #include <asm/alternative.h> #define DEFINE_MRS_S \ __DEFINE_ASM_GPR_NUMS \ " .macro mrs_s, rt, sreg\n" \ __emit_inst(0xd5200000|(\\sreg)|(.L__gpr_num_\\rt)) \ " .endm\n" #define DEFINE_MSR_S \ __DEFINE_ASM_GPR_NUMS \ " .macro msr_s, sreg, rt\n" \ __emit_inst(0xd5000000|(\\sreg)|(.L__gpr_num_\\rt)) \ " .endm\n" #define UNDEFINE_MRS_S \ " .purgem mrs_s\n" #define UNDEFINE_MSR_S \ " .purgem msr_s\n" #define __mrs_s(v, r) \ DEFINE_MRS_S \ " mrs_s " v ", " __stringify(r) "\n" \ UNDEFINE_MRS_S #define __msr_s(r, v) \ DEFINE_MSR_S \ " msr_s " __stringify(r) ", " v "\n" \ UNDEFINE_MSR_S /* * Unlike read_cpuid, calls to read_sysreg are never expected to be * optimized away or replaced with synthetic values. */ #define read_sysreg(r) ({ \ u64 __val; \ asm volatile("mrs %0, " __stringify(r) : "=r" (__val)); \ __val; \ }) /* * The "Z" constraint normally means a zero immediate, but when combined with * the "%x0" template means XZR. */ #define write_sysreg(v, r) do { \ u64 __val = (u64)(v); \ asm volatile("msr " __stringify(r) ", %x0" \ : : "rZ" (__val)); \ } while (0) /* * For registers without architectural names, or simply unsupported by * GAS. */ #define read_sysreg_s(r) ({ \ u64 __val; \ asm volatile(__mrs_s("%0", r) : "=r" (__val)); \ __val; \ }) #define write_sysreg_s(v, r) do { \ u64 __val = (u64)(v); \ asm volatile(__msr_s(r, "%x0") : : "rZ" (__val)); \ } while (0) /* * Modify bits in a sysreg. Bits in the clear mask are zeroed, then bits in the * set mask are set. Other bits are left as-is. */ #define sysreg_clear_set(sysreg, clear, set) do { \ u64 __scs_val = read_sysreg(sysreg); \ u64 __scs_new = (__scs_val & ~(u64)(clear)) | (set); \ if (__scs_new != __scs_val) \ write_sysreg(__scs_new, sysreg); \ } while (0) #define sysreg_clear_set_s(sysreg, clear, set) do { \ u64 __scs_val = read_sysreg_s(sysreg); \ u64 __scs_new = (__scs_val & ~(u64)(clear)) | (set); \ if (__scs_new != __scs_val) \ write_sysreg_s(__scs_new, sysreg); \ } while (0) #define read_sysreg_par() ({ \ u64 par; \ asm(ALTERNATIVE("nop", "dmb sy", ARM64_WORKAROUND_1508412)); \ par = read_sysreg(par_el1); \ asm(ALTERNATIVE("nop", "dmb sy", ARM64_WORKAROUND_1508412)); \ par; \ }) #define SYS_FIELD_GET(reg, field, val) \ FIELD_GET(reg##_##field##_MASK, val) #define SYS_FIELD_PREP(reg, field, val) \ FIELD_PREP(reg##_##field##_MASK, val) #define SYS_FIELD_PREP_ENUM(reg, field, val) \ FIELD_PREP(reg##_##field##_MASK, reg##_##field##_##val) #endif #endif /* __ASM_SYSREG_H */ |