isa.hh revision 13531:e6f1bf55d038 
1/*
2 * Copyright (c) 2010, 2012-2018 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder.  You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2009 The Regents of The University of Michigan
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Gabe Black
41 */
42
43#ifndef __ARCH_ARM_ISA_HH__
44#define __ARCH_ARM_ISA_HH__
45
46#include "arch/arm/isa_device.hh"
47#include "arch/arm/miscregs.hh"
48#include "arch/arm/registers.hh"
49#include "arch/arm/system.hh"
50#include "arch/arm/tlb.hh"
51#include "arch/arm/types.hh"
52#include "arch/generic/traits.hh"
53#include "debug/Checkpoint.hh"
54#include "enums/VecRegRenameMode.hh"
55#include "sim/sim_object.hh"
56#include "enums/DecoderFlavour.hh"
57
58struct ArmISAParams;
59struct DummyArmISADeviceParams;
60class ThreadContext;
61class Checkpoint;
62class EventManager;
63
64namespace ArmISA
65{
66    class ISA : public SimObject
67    {
68      protected:
69        // Parent system
70        ArmSystem *system;
71
72        // Micro Architecture
73        const Enums::DecoderFlavour _decoderFlavour;
74        const Enums::VecRegRenameMode _vecRegRenameMode;
75
76        /** Dummy device for to handle non-existing ISA devices */
77        DummyISADevice dummyDevice;
78
79        // PMU belonging to this ISA
80        BaseISADevice *pmu;
81
82        // Generic timer interface belonging to this ISA
83        std::unique_ptr<BaseISADevice> timer;
84
85        // GICv3 CPU interface belonging to this ISA
86        std::unique_ptr<BaseISADevice> gicv3CpuInterface;
87
88        // Cached copies of system-level properties
89        bool highestELIs64;
90        bool haveSecurity;
91        bool haveLPAE;
92        bool haveVirtualization;
93        bool haveCrypto;
94        bool haveLargeAsid64;
95        bool haveGICv3CPUInterface;
96        uint8_t physAddrRange;
97
98        /**
99         * If true, accesses to IMPLEMENTATION DEFINED registers are treated
100         * as NOP hence not causing UNDEFINED INSTRUCTION.
101         */
102        bool impdefAsNop;
103
104        /** MiscReg metadata **/
105        struct MiscRegLUTEntry {
106            uint32_t lower;  // Lower half mapped to this register
107            uint32_t upper;  // Upper half mapped to this register
108            uint64_t _reset; // value taken on reset (i.e. initialization)
109            uint64_t _res0;  // reserved
110            uint64_t _res1;  // reserved
111            uint64_t _raz;   // read as zero (fixed at 0)
112            uint64_t _rao;   // read as one (fixed at 1)
113          public:
114            MiscRegLUTEntry() :
115              lower(0), upper(0),
116              _reset(0), _res0(0), _res1(0), _raz(0), _rao(0) {}
117            uint64_t reset() const { return _reset; }
118            uint64_t res0()  const { return _res0; }
119            uint64_t res1()  const { return _res1; }
120            uint64_t raz()   const { return _raz; }
121            uint64_t rao()   const { return _rao; }
122            // raz/rao implies writes ignored
123            uint64_t wi()    const { return _raz | _rao; }
124        };
125
126        /** Metadata table accessible via the value of the register */
127        static std::vector<struct MiscRegLUTEntry> lookUpMiscReg;
128
129        class MiscRegLUTEntryInitializer {
130            struct MiscRegLUTEntry &entry;
131            std::bitset<NUM_MISCREG_INFOS> &info;
132            typedef const MiscRegLUTEntryInitializer& chain;
133          public:
134            chain mapsTo(uint32_t l, uint32_t u = 0) const {
135                entry.lower = l;
136                entry.upper = u;
137                return *this;
138            }
139            chain res0(uint64_t mask) const {
140                entry._res0 = mask;
141                return *this;
142            }
143            chain res1(uint64_t mask) const {
144                entry._res1 = mask;
145                return *this;
146            }
147            chain raz(uint64_t mask) const {
148                entry._raz  = mask;
149                return *this;
150            }
151            chain rao(uint64_t mask) const {
152                entry._rao  = mask;
153                return *this;
154            }
155            chain implemented(bool v = true) const {
156                info[MISCREG_IMPLEMENTED] = v;
157                return *this;
158            }
159            chain unimplemented() const {
160                return implemented(false);
161            }
162            chain unverifiable(bool v = true) const {
163                info[MISCREG_UNVERIFIABLE] = v;
164                return *this;
165            }
166            chain warnNotFail(bool v = true) const {
167                info[MISCREG_WARN_NOT_FAIL] = v;
168                return *this;
169            }
170            chain mutex(bool v = true) const {
171                info[MISCREG_MUTEX] = v;
172                return *this;
173            }
174            chain banked(bool v = true) const {
175                info[MISCREG_BANKED] = v;
176                return *this;
177            }
178            chain bankedChild(bool v = true) const {
179                info[MISCREG_BANKED_CHILD] = v;
180                return *this;
181            }
182            chain userNonSecureRead(bool v = true) const {
183                info[MISCREG_USR_NS_RD] = v;
184                return *this;
185            }
186            chain userNonSecureWrite(bool v = true) const {
187                info[MISCREG_USR_NS_WR] = v;
188                return *this;
189            }
190            chain userSecureRead(bool v = true) const {
191                info[MISCREG_USR_S_RD] = v;
192                return *this;
193            }
194            chain userSecureWrite(bool v = true) const {
195                info[MISCREG_USR_S_WR] = v;
196                return *this;
197            }
198            chain user(bool v = true) const {
199                userNonSecureRead(v);
200                userNonSecureWrite(v);
201                userSecureRead(v);
202                userSecureWrite(v);
203                return *this;
204            }
205            chain privNonSecureRead(bool v = true) const {
206                info[MISCREG_PRI_NS_RD] = v;
207                return *this;
208            }
209            chain privNonSecureWrite(bool v = true) const {
210                info[MISCREG_PRI_NS_WR] = v;
211                return *this;
212            }
213            chain privNonSecure(bool v = true) const {
214                privNonSecureRead(v);
215                privNonSecureWrite(v);
216                return *this;
217            }
218            chain privSecureRead(bool v = true) const {
219                info[MISCREG_PRI_S_RD] = v;
220                return *this;
221            }
222            chain privSecureWrite(bool v = true) const {
223                info[MISCREG_PRI_S_WR] = v;
224                return *this;
225            }
226            chain privSecure(bool v = true) const {
227                privSecureRead(v);
228                privSecureWrite(v);
229                return *this;
230            }
231            chain priv(bool v = true) const {
232                privSecure(v);
233                privNonSecure(v);
234                return *this;
235            }
236            chain privRead(bool v = true) const {
237                privSecureRead(v);
238                privNonSecureRead(v);
239                return *this;
240            }
241            chain hypRead(bool v = true) const {
242                info[MISCREG_HYP_RD] = v;
243                return *this;
244            }
245            chain hypWrite(bool v = true) const {
246                info[MISCREG_HYP_WR] = v;
247                return *this;
248            }
249            chain hyp(bool v = true) const {
250                hypRead(v);
251                hypWrite(v);
252                return *this;
253            }
254            chain monSecureRead(bool v = true) const {
255                info[MISCREG_MON_NS0_RD] = v;
256                return *this;
257            }
258            chain monSecureWrite(bool v = true) const {
259                info[MISCREG_MON_NS0_WR] = v;
260                return *this;
261            }
262            chain monNonSecureRead(bool v = true) const {
263                info[MISCREG_MON_NS1_RD] = v;
264                return *this;
265            }
266            chain monNonSecureWrite(bool v = true) const {
267                info[MISCREG_MON_NS1_WR] = v;
268                return *this;
269            }
270            chain mon(bool v = true) const {
271                monSecureRead(v);
272                monSecureWrite(v);
273                monNonSecureRead(v);
274                monNonSecureWrite(v);
275                return *this;
276            }
277            chain monSecure(bool v = true) const {
278                monSecureRead(v);
279                monSecureWrite(v);
280                return *this;
281            }
282            chain monNonSecure(bool v = true) const {
283                monNonSecureRead(v);
284                monNonSecureWrite(v);
285                return *this;
286            }
287            chain allPrivileges(bool v = true) const {
288                userNonSecureRead(v);
289                userNonSecureWrite(v);
290                userSecureRead(v);
291                userSecureWrite(v);
292                privNonSecureRead(v);
293                privNonSecureWrite(v);
294                privSecureRead(v);
295                privSecureWrite(v);
296                hypRead(v);
297                hypWrite(v);
298                monSecureRead(v);
299                monSecureWrite(v);
300                monNonSecureRead(v);
301                monNonSecureWrite(v);
302                return *this;
303            }
304            chain nonSecure(bool v = true) const {
305                userNonSecureRead(v);
306                userNonSecureWrite(v);
307                privNonSecureRead(v);
308                privNonSecureWrite(v);
309                hypRead(v);
310                hypWrite(v);
311                monNonSecureRead(v);
312                monNonSecureWrite(v);
313                return *this;
314            }
315            chain secure(bool v = true) const {
316                userSecureRead(v);
317                userSecureWrite(v);
318                privSecureRead(v);
319                privSecureWrite(v);
320                monSecureRead(v);
321                monSecureWrite(v);
322                return *this;
323            }
324            chain reads(bool v) const {
325                userNonSecureRead(v);
326                userSecureRead(v);
327                privNonSecureRead(v);
328                privSecureRead(v);
329                hypRead(v);
330                monSecureRead(v);
331                monNonSecureRead(v);
332                return *this;
333            }
334            chain writes(bool v) const {
335                userNonSecureWrite(v);
336                userSecureWrite(v);
337                privNonSecureWrite(v);
338                privSecureWrite(v);
339                hypWrite(v);
340                monSecureWrite(v);
341                monNonSecureWrite(v);
342                return *this;
343            }
344            chain exceptUserMode() const {
345                user(0);
346                return *this;
347            }
348            MiscRegLUTEntryInitializer(struct MiscRegLUTEntry &e,
349                                       std::bitset<NUM_MISCREG_INFOS> &i)
350              : entry(e),
351                info(i)
352            {
353                // force unimplemented registers to be thusly declared
354                implemented(1);
355            }
356        };
357
358        const MiscRegLUTEntryInitializer InitReg(uint32_t reg) {
359            return MiscRegLUTEntryInitializer(lookUpMiscReg[reg],
360                                              miscRegInfo[reg]);
361        }
362
363        void initializeMiscRegMetadata();
364
365        MiscReg miscRegs[NumMiscRegs];
366        const IntRegIndex *intRegMap;
367
368        void
369        updateRegMap(CPSR cpsr)
370        {
371            if (cpsr.width == 0) {
372                intRegMap = IntReg64Map;
373            } else {
374                switch (cpsr.mode) {
375                  case MODE_USER:
376                  case MODE_SYSTEM:
377                    intRegMap = IntRegUsrMap;
378                    break;
379                  case MODE_FIQ:
380                    intRegMap = IntRegFiqMap;
381                    break;
382                  case MODE_IRQ:
383                    intRegMap = IntRegIrqMap;
384                    break;
385                  case MODE_SVC:
386                    intRegMap = IntRegSvcMap;
387                    break;
388                  case MODE_MON:
389                    intRegMap = IntRegMonMap;
390                    break;
391                  case MODE_ABORT:
392                    intRegMap = IntRegAbtMap;
393                    break;
394                  case MODE_HYP:
395                    intRegMap = IntRegHypMap;
396                    break;
397                  case MODE_UNDEFINED:
398                    intRegMap = IntRegUndMap;
399                    break;
400                  default:
401                    panic("Unrecognized mode setting in CPSR.\n");
402                }
403            }
404        }
405
406        BaseISADevice &getGenericTimer(ThreadContext *tc);
407        BaseISADevice &getGICv3CPUInterface(ThreadContext *tc);
408
409
410      private:
411        inline void assert32(ThreadContext *tc) {
412            CPSR cpsr M5_VAR_USED = readMiscReg(MISCREG_CPSR, tc);
413            assert(cpsr.width);
414        }
415
416        inline void assert64(ThreadContext *tc) {
417            CPSR cpsr M5_VAR_USED = readMiscReg(MISCREG_CPSR, tc);
418            assert(!cpsr.width);
419        }
420
421      public:
422        void clear();
423
424      protected:
425        void clear32(const ArmISAParams *p, const SCTLR &sctlr_rst);
426        void clear64(const ArmISAParams *p);
427        void initID32(const ArmISAParams *p);
428        void initID64(const ArmISAParams *p);
429
430      public:
431        MiscReg readMiscRegNoEffect(int misc_reg) const;
432        MiscReg readMiscReg(int misc_reg, ThreadContext *tc);
433        void setMiscRegNoEffect(int misc_reg, const MiscReg &val);
434        void setMiscReg(int misc_reg, const MiscReg &val, ThreadContext *tc);
435
436        RegId
437        flattenRegId(const RegId& regId) const
438        {
439            switch (regId.classValue()) {
440              case IntRegClass:
441                return RegId(IntRegClass, flattenIntIndex(regId.index()));
442              case FloatRegClass:
443                return RegId(FloatRegClass, flattenFloatIndex(regId.index()));
444              case VecRegClass:
445                return RegId(VecRegClass, flattenVecIndex(regId.index()));
446              case VecElemClass:
447                return RegId(VecElemClass, flattenVecElemIndex(regId.index()));
448              case CCRegClass:
449                return RegId(CCRegClass, flattenCCIndex(regId.index()));
450              case MiscRegClass:
451                return RegId(MiscRegClass, flattenMiscIndex(regId.index()));
452            }
453            return RegId();
454        }
455
456        int
457        flattenIntIndex(int reg) const
458        {
459            assert(reg >= 0);
460            if (reg < NUM_ARCH_INTREGS) {
461                return intRegMap[reg];
462            } else if (reg < NUM_INTREGS) {
463                return reg;
464            } else if (reg == INTREG_SPX) {
465                CPSR cpsr = miscRegs[MISCREG_CPSR];
466                ExceptionLevel el = opModeToEL(
467                    (OperatingMode) (uint8_t) cpsr.mode);
468                if (!cpsr.sp && el != EL0)
469                    return INTREG_SP0;
470                switch (el) {
471                  case EL3:
472                    return INTREG_SP3;
473                  case EL2:
474                    return INTREG_SP2;
475                  case EL1:
476                    return INTREG_SP1;
477                  case EL0:
478                    return INTREG_SP0;
479                  default:
480                    panic("Invalid exception level");
481                    return 0;  // Never happens.
482                }
483            } else {
484                return flattenIntRegModeIndex(reg);
485            }
486        }
487
488        int
489        flattenFloatIndex(int reg) const
490        {
491            assert(reg >= 0);
492            return reg;
493        }
494
495        int
496        flattenVecIndex(int reg) const
497        {
498            assert(reg >= 0);
499            return reg;
500        }
501
502        int
503        flattenVecElemIndex(int reg) const
504        {
505            assert(reg >= 0);
506            return reg;
507        }
508
509        int
510        flattenCCIndex(int reg) const
511        {
512            assert(reg >= 0);
513            return reg;
514        }
515
516        int
517        flattenMiscIndex(int reg) const
518        {
519            assert(reg >= 0);
520            int flat_idx = reg;
521
522            if (reg == MISCREG_SPSR) {
523                CPSR cpsr = miscRegs[MISCREG_CPSR];
524                switch (cpsr.mode) {
525                  case MODE_EL0T:
526                    warn("User mode does not have SPSR\n");
527                    flat_idx = MISCREG_SPSR;
528                    break;
529                  case MODE_EL1T:
530                  case MODE_EL1H:
531                    flat_idx = MISCREG_SPSR_EL1;
532                    break;
533                  case MODE_EL2T:
534                  case MODE_EL2H:
535                    flat_idx = MISCREG_SPSR_EL2;
536                    break;
537                  case MODE_EL3T:
538                  case MODE_EL3H:
539                    flat_idx = MISCREG_SPSR_EL3;
540                    break;
541                  case MODE_USER:
542                    warn("User mode does not have SPSR\n");
543                    flat_idx = MISCREG_SPSR;
544                    break;
545                  case MODE_FIQ:
546                    flat_idx = MISCREG_SPSR_FIQ;
547                    break;
548                  case MODE_IRQ:
549                    flat_idx = MISCREG_SPSR_IRQ;
550                    break;
551                  case MODE_SVC:
552                    flat_idx = MISCREG_SPSR_SVC;
553                    break;
554                  case MODE_MON:
555                    flat_idx = MISCREG_SPSR_MON;
556                    break;
557                  case MODE_ABORT:
558                    flat_idx = MISCREG_SPSR_ABT;
559                    break;
560                  case MODE_HYP:
561                    flat_idx = MISCREG_SPSR_HYP;
562                    break;
563                  case MODE_UNDEFINED:
564                    flat_idx = MISCREG_SPSR_UND;
565                    break;
566                  default:
567                    warn("Trying to access SPSR in an invalid mode: %d\n",
568                         cpsr.mode);
569                    flat_idx = MISCREG_SPSR;
570                    break;
571                }
572            } else if (miscRegInfo[reg][MISCREG_MUTEX]) {
573                // Mutually exclusive CP15 register
574                switch (reg) {
575                  case MISCREG_PRRR_MAIR0:
576                  case MISCREG_PRRR_MAIR0_NS:
577                  case MISCREG_PRRR_MAIR0_S:
578                    {
579                        TTBCR ttbcr = readMiscRegNoEffect(MISCREG_TTBCR);
580                        // If the muxed reg has been flattened, work out the
581                        // offset and apply it to the unmuxed reg
582                        int idxOffset = reg - MISCREG_PRRR_MAIR0;
583                        if (ttbcr.eae)
584                            flat_idx = flattenMiscIndex(MISCREG_MAIR0 +
585                                                        idxOffset);
586                        else
587                            flat_idx = flattenMiscIndex(MISCREG_PRRR +
588                                                        idxOffset);
589                    }
590                    break;
591                  case MISCREG_NMRR_MAIR1:
592                  case MISCREG_NMRR_MAIR1_NS:
593                  case MISCREG_NMRR_MAIR1_S:
594                    {
595                        TTBCR ttbcr = readMiscRegNoEffect(MISCREG_TTBCR);
596                        // If the muxed reg has been flattened, work out the
597                        // offset and apply it to the unmuxed reg
598                        int idxOffset = reg - MISCREG_NMRR_MAIR1;
599                        if (ttbcr.eae)
600                            flat_idx = flattenMiscIndex(MISCREG_MAIR1 +
601                                                        idxOffset);
602                        else
603                            flat_idx = flattenMiscIndex(MISCREG_NMRR +
604                                                        idxOffset);
605                    }
606                    break;
607                  case MISCREG_PMXEVTYPER_PMCCFILTR:
608                    {
609                        PMSELR pmselr = miscRegs[MISCREG_PMSELR];
610                        if (pmselr.sel == 31)
611                            flat_idx = flattenMiscIndex(MISCREG_PMCCFILTR);
612                        else
613                            flat_idx = flattenMiscIndex(MISCREG_PMXEVTYPER);
614                    }
615                    break;
616                  default:
617                    panic("Unrecognized misc. register.\n");
618                    break;
619                }
620            } else {
621                if (miscRegInfo[reg][MISCREG_BANKED]) {
622                    bool secureReg = haveSecurity && !highestELIs64 &&
623                                     inSecureState(miscRegs[MISCREG_SCR],
624                                                   miscRegs[MISCREG_CPSR]);
625                    flat_idx += secureReg ? 2 : 1;
626                }
627            }
628            return flat_idx;
629        }
630
631        std::pair<int,int> getMiscIndices(int misc_reg) const
632        {
633            // Note: indexes of AArch64 registers are left unchanged
634            int flat_idx = flattenMiscIndex(misc_reg);
635
636            if (lookUpMiscReg[flat_idx].lower == 0) {
637                return std::make_pair(flat_idx, 0);
638            }
639
640            // do additional S/NS flattenings if mapped to NS while in S
641            bool S = haveSecurity && !highestELIs64 &&
642                     inSecureState(miscRegs[MISCREG_SCR],
643                                   miscRegs[MISCREG_CPSR]);
644            int lower = lookUpMiscReg[flat_idx].lower;
645            int upper = lookUpMiscReg[flat_idx].upper;
646            // upper == 0, which is CPSR, is not MISCREG_BANKED_CHILD (no-op)
647            lower += S && miscRegInfo[lower][MISCREG_BANKED_CHILD];
648            upper += S && miscRegInfo[upper][MISCREG_BANKED_CHILD];
649            return std::make_pair(lower, upper);
650        }
651
652        void serialize(CheckpointOut &cp) const
653        {
654            DPRINTF(Checkpoint, "Serializing Arm Misc Registers\n");
655            SERIALIZE_ARRAY(miscRegs, NUM_PHYS_MISCREGS);
656
657            SERIALIZE_SCALAR(highestELIs64);
658            SERIALIZE_SCALAR(haveSecurity);
659            SERIALIZE_SCALAR(haveLPAE);
660            SERIALIZE_SCALAR(haveVirtualization);
661            SERIALIZE_SCALAR(haveLargeAsid64);
662            SERIALIZE_SCALAR(physAddrRange);
663        }
664        void unserialize(CheckpointIn &cp)
665        {
666            DPRINTF(Checkpoint, "Unserializing Arm Misc Registers\n");
667            UNSERIALIZE_ARRAY(miscRegs, NUM_PHYS_MISCREGS);
668            CPSR tmp_cpsr = miscRegs[MISCREG_CPSR];
669            updateRegMap(tmp_cpsr);
670
671            UNSERIALIZE_SCALAR(highestELIs64);
672            UNSERIALIZE_SCALAR(haveSecurity);
673            UNSERIALIZE_SCALAR(haveLPAE);
674            UNSERIALIZE_SCALAR(haveVirtualization);
675            UNSERIALIZE_SCALAR(haveLargeAsid64);
676            UNSERIALIZE_SCALAR(physAddrRange);
677        }
678
679        void startup(ThreadContext *tc);
680
681        Enums::DecoderFlavour decoderFlavour() const { return _decoderFlavour; }
682
683        Enums::VecRegRenameMode
684        vecRegRenameMode() const
685        {
686            return _vecRegRenameMode;
687        }
688
689        /// Explicitly import the otherwise hidden startup
690        using SimObject::startup;
691
692        typedef ArmISAParams Params;
693
694        const Params *params() const;
695
696        ISA(Params *p);
697    };
698}
699
700template<>
701struct initRenameMode<ArmISA::ISA>
702{
703    static Enums::VecRegRenameMode mode(const ArmISA::ISA* isa)
704    {
705        return isa->vecRegRenameMode();
706    }
707    static bool equals(const ArmISA::ISA* isa1, const ArmISA::ISA* isa2)
708    {
709        return mode(isa1) == mode(isa2);
710    }
711};
712
713#endif
714