1/*
2 * Copyright (c) 2011-2012 ARM Limited
3 * Copyright (c) 2013 Advanced Micro Devices, Inc.
4 * All rights reserved
5 *
6 * The license below extends only to copyright in the software and shall
7 * not be construed as granting a license to any other intellectual
8 * property including but not limited to intellectual property relating
9 * to a hardware implementation of the functionality of the software
10 * licensed hereunder. You may use the software subject to the license
11 * terms below provided that you ensure that this notice is replicated
12 * unmodified and in its entirety in all distributions of the software,
13 * modified or unmodified, in source code or in binary form.
14 *
15 * Copyright (c) 2001-2006 The Regents of The University of Michigan
16 * All rights reserved.
17 *
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions are
20 * met: redistributions of source code must retain the above copyright
21 * notice, this list of conditions and the following disclaimer;
22 * redistributions in binary form must reproduce the above copyright
23 * notice, this list of conditions and the following disclaimer in the
24 * documentation and/or other materials provided with the distribution;
25 * neither the name of the copyright holders nor the names of its
26 * contributors may be used to endorse or promote products derived from
27 * this software without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
32 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
33 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
34 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
35 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
39 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Authors: Steve Reinhardt
42 * Nathan Binkert
43 */
44
45#ifndef __CPU_SIMPLE_THREAD_HH__
46#define __CPU_SIMPLE_THREAD_HH__
47
48#include "arch/decoder.hh"
49#include "arch/isa.hh"
50#include "arch/isa_traits.hh"
51#include "arch/registers.hh"
52#include "arch/tlb.hh"
53#include "arch/types.hh"
54#include "base/types.hh"
55#include "config/the_isa.hh"
56#include "cpu/thread_context.hh"
57#include "cpu/thread_state.hh"
58#include "debug/CCRegs.hh"
59#include "debug/FloatRegs.hh"
60#include "debug/IntRegs.hh"
61#include "mem/page_table.hh"
62#include "mem/request.hh"
63#include "sim/byteswap.hh"
64#include "sim/eventq.hh"
65#include "sim/process.hh"
66#include "sim/serialize.hh"
67#include "sim/system.hh"
68
69class BaseCPU;
70class CheckerCPU;
71
72class FunctionProfile;
73class ProfileNode;
74
75namespace TheISA {
76 namespace Kernel {
77 class Statistics;
78 }
79}
80
81/**
82 * The SimpleThread object provides a combination of the ThreadState
83 * object and the ThreadContext interface. It implements the
84 * ThreadContext interface so that a ProxyThreadContext class can be
85 * made using SimpleThread as the template parameter (see
86 * thread_context.hh). It adds to the ThreadState object by adding all
87 * the objects needed for simple functional execution, including a
88 * simple architectural register file, and pointers to the ITB and DTB
89 * in full system mode. For CPU models that do not need more advanced
90 * ways to hold state (i.e. a separate physical register file, or
91 * separate fetch and commit PC's), this SimpleThread class provides
92 * all the necessary state for full architecture-level functional
93 * simulation. See the AtomicSimpleCPU or TimingSimpleCPU for
94 * examples.
95 */
96
97class SimpleThread : public ThreadState
98{
99 protected:
100 typedef TheISA::MachInst MachInst;
101 typedef TheISA::MiscReg MiscReg;
102 typedef TheISA::FloatReg FloatReg;
103 typedef TheISA::FloatRegBits FloatRegBits;
104 typedef TheISA::CCReg CCReg;
105 public:
106 typedef ThreadContext::Status Status;
107
108 protected:
109 union {
110 FloatReg f[TheISA::NumFloatRegs];
111 FloatRegBits i[TheISA::NumFloatRegs];
112 } floatRegs;
113 TheISA::IntReg intRegs[TheISA::NumIntRegs];
114#ifdef ISA_HAS_CC_REGS
115 TheISA::CCReg ccRegs[TheISA::NumCCRegs];
116#endif
117 TheISA::ISA *const isa; // one "instance" of the current ISA.
118
119 TheISA::PCState _pcState;
120
121 /** Did this instruction execute or is it predicated false */
122 bool predicate;
123
124 public:
125 std::string name() const
126 {
127 return csprintf("%s.[tid:%i]", baseCpu->name(), tc->threadId());
128 }
129
130 ProxyThreadContext<SimpleThread> *tc;
131
132 System *system;
133
134 TheISA::TLB *itb;
135 TheISA::TLB *dtb;
136
137 TheISA::Decoder decoder;
138
139 // constructor: initialize SimpleThread from given process structure
140 // FS
141 SimpleThread(BaseCPU *_cpu, int _thread_num, System *_system,
142 TheISA::TLB *_itb, TheISA::TLB *_dtb, TheISA::ISA *_isa,
143 bool use_kernel_stats = true);
144 // SE
145 SimpleThread(BaseCPU *_cpu, int _thread_num, System *_system,
146 Process *_process, TheISA::TLB *_itb, TheISA::TLB *_dtb,
147 TheISA::ISA *_isa);
148
149 virtual ~SimpleThread();
150
151 virtual void takeOverFrom(ThreadContext *oldContext);
152
153 void regStats(const std::string &name);
154
155 void copyState(ThreadContext *oldContext);
156
157 void serialize(std::ostream &os);
158 void unserialize(Checkpoint *cp, const std::string §ion);
159 void startup();
160
161 /***************************************************************
162 * SimpleThread functions to provide CPU with access to various
163 * state.
164 **************************************************************/
165
166 /** Returns the pointer to this SimpleThread's ThreadContext. Used
167 * when a ThreadContext must be passed to objects outside of the
168 * CPU.
169 */
170 ThreadContext *getTC() { return tc; }
171
172 void demapPage(Addr vaddr, uint64_t asn)
173 {
174 itb->demapPage(vaddr, asn);
175 dtb->demapPage(vaddr, asn);
176 }
177
178 void demapInstPage(Addr vaddr, uint64_t asn)
179 {
180 itb->demapPage(vaddr, asn);
181 }
182
183 void demapDataPage(Addr vaddr, uint64_t asn)
184 {
185 dtb->demapPage(vaddr, asn);
186 }
187
188 void dumpFuncProfile();
189
190 Fault hwrei();
191
192 bool simPalCheck(int palFunc);
193
194 /*******************************************
195 * ThreadContext interface functions.
196 ******************************************/
197
198 BaseCPU *getCpuPtr() { return baseCpu; }
199
200 TheISA::TLB *getITBPtr() { return itb; }
201
202 TheISA::TLB *getDTBPtr() { return dtb; }
203
204 CheckerCPU *getCheckerCpuPtr() { return NULL; }
205
206 TheISA::Decoder *getDecoderPtr() { return &decoder; }
207
208 System *getSystemPtr() { return system; }
209
210 Status status() const { return _status; }
211
212 void setStatus(Status newStatus) { _status = newStatus; }
213
214 /// Set the status to Active. Optional delay indicates number of
215 /// cycles to wait before beginning execution.
216 void activate(Cycles delay = Cycles(1));
217
218 /// Set the status to Suspended.
219 void suspend();
220
221 /// Set the status to Halted.
222 void halt();
223
224 virtual bool misspeculating();
225
226 void copyArchRegs(ThreadContext *tc);
227
228 void clearArchRegs()
229 {
230 _pcState = 0;
231 memset(intRegs, 0, sizeof(intRegs));
232 memset(floatRegs.i, 0, sizeof(floatRegs.i));
233#ifdef ISA_HAS_CC_REGS
234 memset(ccRegs, 0, sizeof(ccRegs));
235#endif
236 isa->clear();
237 }
238
239 //
240 // New accessors for new decoder.
241 //
242 uint64_t readIntReg(int reg_idx)
243 {
244 int flatIndex = isa->flattenIntIndex(reg_idx);
245 assert(flatIndex < TheISA::NumIntRegs);
246 uint64_t regVal(readIntRegFlat(flatIndex));
247 DPRINTF(IntRegs, "Reading int reg %d (%d) as %#x.\n",
248 reg_idx, flatIndex, regVal);
249 return regVal;
250 }
251
252 FloatReg readFloatReg(int reg_idx)
253 {
254 int flatIndex = isa->flattenFloatIndex(reg_idx);
255 assert(flatIndex < TheISA::NumFloatRegs);
256 FloatReg regVal(readFloatRegFlat(flatIndex));
257 DPRINTF(FloatRegs, "Reading float reg %d (%d) as %f, %#x.\n",
258 reg_idx, flatIndex, regVal, floatRegs.i[flatIndex]);
259 return regVal;
260 }
261
262 FloatRegBits readFloatRegBits(int reg_idx)
263 {
264 int flatIndex = isa->flattenFloatIndex(reg_idx);
265 assert(flatIndex < TheISA::NumFloatRegs);
266 FloatRegBits regVal(readFloatRegBitsFlat(flatIndex));
267 DPRINTF(FloatRegs, "Reading float reg %d (%d) bits as %#x, %f.\n",
268 reg_idx, flatIndex, regVal, floatRegs.f[flatIndex]);
269 return regVal;
270 }
271
272 CCReg readCCReg(int reg_idx)
273 {
274#ifdef ISA_HAS_CC_REGS
275 int flatIndex = isa->flattenCCIndex(reg_idx);
| 1/*
2 * Copyright (c) 2011-2012 ARM Limited
3 * Copyright (c) 2013 Advanced Micro Devices, Inc.
4 * All rights reserved
5 *
6 * The license below extends only to copyright in the software and shall
7 * not be construed as granting a license to any other intellectual
8 * property including but not limited to intellectual property relating
9 * to a hardware implementation of the functionality of the software
10 * licensed hereunder. You may use the software subject to the license
11 * terms below provided that you ensure that this notice is replicated
12 * unmodified and in its entirety in all distributions of the software,
13 * modified or unmodified, in source code or in binary form.
14 *
15 * Copyright (c) 2001-2006 The Regents of The University of Michigan
16 * All rights reserved.
17 *
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions are
20 * met: redistributions of source code must retain the above copyright
21 * notice, this list of conditions and the following disclaimer;
22 * redistributions in binary form must reproduce the above copyright
23 * notice, this list of conditions and the following disclaimer in the
24 * documentation and/or other materials provided with the distribution;
25 * neither the name of the copyright holders nor the names of its
26 * contributors may be used to endorse or promote products derived from
27 * this software without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
32 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
33 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
34 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
35 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
39 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Authors: Steve Reinhardt
42 * Nathan Binkert
43 */
44
45#ifndef __CPU_SIMPLE_THREAD_HH__
46#define __CPU_SIMPLE_THREAD_HH__
47
48#include "arch/decoder.hh"
49#include "arch/isa.hh"
50#include "arch/isa_traits.hh"
51#include "arch/registers.hh"
52#include "arch/tlb.hh"
53#include "arch/types.hh"
54#include "base/types.hh"
55#include "config/the_isa.hh"
56#include "cpu/thread_context.hh"
57#include "cpu/thread_state.hh"
58#include "debug/CCRegs.hh"
59#include "debug/FloatRegs.hh"
60#include "debug/IntRegs.hh"
61#include "mem/page_table.hh"
62#include "mem/request.hh"
63#include "sim/byteswap.hh"
64#include "sim/eventq.hh"
65#include "sim/process.hh"
66#include "sim/serialize.hh"
67#include "sim/system.hh"
68
69class BaseCPU;
70class CheckerCPU;
71
72class FunctionProfile;
73class ProfileNode;
74
75namespace TheISA {
76 namespace Kernel {
77 class Statistics;
78 }
79}
80
81/**
82 * The SimpleThread object provides a combination of the ThreadState
83 * object and the ThreadContext interface. It implements the
84 * ThreadContext interface so that a ProxyThreadContext class can be
85 * made using SimpleThread as the template parameter (see
86 * thread_context.hh). It adds to the ThreadState object by adding all
87 * the objects needed for simple functional execution, including a
88 * simple architectural register file, and pointers to the ITB and DTB
89 * in full system mode. For CPU models that do not need more advanced
90 * ways to hold state (i.e. a separate physical register file, or
91 * separate fetch and commit PC's), this SimpleThread class provides
92 * all the necessary state for full architecture-level functional
93 * simulation. See the AtomicSimpleCPU or TimingSimpleCPU for
94 * examples.
95 */
96
97class SimpleThread : public ThreadState
98{
99 protected:
100 typedef TheISA::MachInst MachInst;
101 typedef TheISA::MiscReg MiscReg;
102 typedef TheISA::FloatReg FloatReg;
103 typedef TheISA::FloatRegBits FloatRegBits;
104 typedef TheISA::CCReg CCReg;
105 public:
106 typedef ThreadContext::Status Status;
107
108 protected:
109 union {
110 FloatReg f[TheISA::NumFloatRegs];
111 FloatRegBits i[TheISA::NumFloatRegs];
112 } floatRegs;
113 TheISA::IntReg intRegs[TheISA::NumIntRegs];
114#ifdef ISA_HAS_CC_REGS
115 TheISA::CCReg ccRegs[TheISA::NumCCRegs];
116#endif
117 TheISA::ISA *const isa; // one "instance" of the current ISA.
118
119 TheISA::PCState _pcState;
120
121 /** Did this instruction execute or is it predicated false */
122 bool predicate;
123
124 public:
125 std::string name() const
126 {
127 return csprintf("%s.[tid:%i]", baseCpu->name(), tc->threadId());
128 }
129
130 ProxyThreadContext<SimpleThread> *tc;
131
132 System *system;
133
134 TheISA::TLB *itb;
135 TheISA::TLB *dtb;
136
137 TheISA::Decoder decoder;
138
139 // constructor: initialize SimpleThread from given process structure
140 // FS
141 SimpleThread(BaseCPU *_cpu, int _thread_num, System *_system,
142 TheISA::TLB *_itb, TheISA::TLB *_dtb, TheISA::ISA *_isa,
143 bool use_kernel_stats = true);
144 // SE
145 SimpleThread(BaseCPU *_cpu, int _thread_num, System *_system,
146 Process *_process, TheISA::TLB *_itb, TheISA::TLB *_dtb,
147 TheISA::ISA *_isa);
148
149 virtual ~SimpleThread();
150
151 virtual void takeOverFrom(ThreadContext *oldContext);
152
153 void regStats(const std::string &name);
154
155 void copyState(ThreadContext *oldContext);
156
157 void serialize(std::ostream &os);
158 void unserialize(Checkpoint *cp, const std::string §ion);
159 void startup();
160
161 /***************************************************************
162 * SimpleThread functions to provide CPU with access to various
163 * state.
164 **************************************************************/
165
166 /** Returns the pointer to this SimpleThread's ThreadContext. Used
167 * when a ThreadContext must be passed to objects outside of the
168 * CPU.
169 */
170 ThreadContext *getTC() { return tc; }
171
172 void demapPage(Addr vaddr, uint64_t asn)
173 {
174 itb->demapPage(vaddr, asn);
175 dtb->demapPage(vaddr, asn);
176 }
177
178 void demapInstPage(Addr vaddr, uint64_t asn)
179 {
180 itb->demapPage(vaddr, asn);
181 }
182
183 void demapDataPage(Addr vaddr, uint64_t asn)
184 {
185 dtb->demapPage(vaddr, asn);
186 }
187
188 void dumpFuncProfile();
189
190 Fault hwrei();
191
192 bool simPalCheck(int palFunc);
193
194 /*******************************************
195 * ThreadContext interface functions.
196 ******************************************/
197
198 BaseCPU *getCpuPtr() { return baseCpu; }
199
200 TheISA::TLB *getITBPtr() { return itb; }
201
202 TheISA::TLB *getDTBPtr() { return dtb; }
203
204 CheckerCPU *getCheckerCpuPtr() { return NULL; }
205
206 TheISA::Decoder *getDecoderPtr() { return &decoder; }
207
208 System *getSystemPtr() { return system; }
209
210 Status status() const { return _status; }
211
212 void setStatus(Status newStatus) { _status = newStatus; }
213
214 /// Set the status to Active. Optional delay indicates number of
215 /// cycles to wait before beginning execution.
216 void activate(Cycles delay = Cycles(1));
217
218 /// Set the status to Suspended.
219 void suspend();
220
221 /// Set the status to Halted.
222 void halt();
223
224 virtual bool misspeculating();
225
226 void copyArchRegs(ThreadContext *tc);
227
228 void clearArchRegs()
229 {
230 _pcState = 0;
231 memset(intRegs, 0, sizeof(intRegs));
232 memset(floatRegs.i, 0, sizeof(floatRegs.i));
233#ifdef ISA_HAS_CC_REGS
234 memset(ccRegs, 0, sizeof(ccRegs));
235#endif
236 isa->clear();
237 }
238
239 //
240 // New accessors for new decoder.
241 //
242 uint64_t readIntReg(int reg_idx)
243 {
244 int flatIndex = isa->flattenIntIndex(reg_idx);
245 assert(flatIndex < TheISA::NumIntRegs);
246 uint64_t regVal(readIntRegFlat(flatIndex));
247 DPRINTF(IntRegs, "Reading int reg %d (%d) as %#x.\n",
248 reg_idx, flatIndex, regVal);
249 return regVal;
250 }
251
252 FloatReg readFloatReg(int reg_idx)
253 {
254 int flatIndex = isa->flattenFloatIndex(reg_idx);
255 assert(flatIndex < TheISA::NumFloatRegs);
256 FloatReg regVal(readFloatRegFlat(flatIndex));
257 DPRINTF(FloatRegs, "Reading float reg %d (%d) as %f, %#x.\n",
258 reg_idx, flatIndex, regVal, floatRegs.i[flatIndex]);
259 return regVal;
260 }
261
262 FloatRegBits readFloatRegBits(int reg_idx)
263 {
264 int flatIndex = isa->flattenFloatIndex(reg_idx);
265 assert(flatIndex < TheISA::NumFloatRegs);
266 FloatRegBits regVal(readFloatRegBitsFlat(flatIndex));
267 DPRINTF(FloatRegs, "Reading float reg %d (%d) bits as %#x, %f.\n",
268 reg_idx, flatIndex, regVal, floatRegs.f[flatIndex]);
269 return regVal;
270 }
271
272 CCReg readCCReg(int reg_idx)
273 {
274#ifdef ISA_HAS_CC_REGS
275 int flatIndex = isa->flattenCCIndex(reg_idx);
|
276 assert(flatIndex < TheISA::NumCCRegs);
277 uint64_t regVal(readCCRegFlat(flatIndex));
278 DPRINTF(CCRegs, "Reading CC reg %d (%d) as %#x.\n",
279 reg_idx, flatIndex, regVal);
280 return regVal;
281#else
282 panic("Tried to read a CC register.");
283 return 0;
284#endif
285 }
286
287 void setIntReg(int reg_idx, uint64_t val)
288 {
289 int flatIndex = isa->flattenIntIndex(reg_idx);
290 assert(flatIndex < TheISA::NumIntRegs);
291 DPRINTF(IntRegs, "Setting int reg %d (%d) to %#x.\n",
292 reg_idx, flatIndex, val);
293 setIntRegFlat(flatIndex, val);
294 }
295
296 void setFloatReg(int reg_idx, FloatReg val)
297 {
298 int flatIndex = isa->flattenFloatIndex(reg_idx);
299 assert(flatIndex < TheISA::NumFloatRegs);
300 setFloatRegFlat(flatIndex, val);
301 DPRINTF(FloatRegs, "Setting float reg %d (%d) to %f, %#x.\n",
302 reg_idx, flatIndex, val, floatRegs.i[flatIndex]);
303 }
304
305 void setFloatRegBits(int reg_idx, FloatRegBits val)
306 {
307 int flatIndex = isa->flattenFloatIndex(reg_idx);
308 assert(flatIndex < TheISA::NumFloatRegs);
309 // XXX: Fix array out of bounds compiler error for gem5.fast
310 // when checkercpu enabled
311 if (flatIndex < TheISA::NumFloatRegs)
312 setFloatRegBitsFlat(flatIndex, val);
313 DPRINTF(FloatRegs, "Setting float reg %d (%d) bits to %#x, %#f.\n",
314 reg_idx, flatIndex, val, floatRegs.f[flatIndex]);
315 }
316
317 void setCCReg(int reg_idx, CCReg val)
318 {
319#ifdef ISA_HAS_CC_REGS
320 int flatIndex = isa->flattenCCIndex(reg_idx);
321 assert(flatIndex < TheISA::NumCCRegs);
322 DPRINTF(CCRegs, "Setting CC reg %d (%d) to %#x.\n",
323 reg_idx, flatIndex, val);
324 setCCRegFlat(flatIndex, val);
325#else
326 panic("Tried to set a CC register.");
327#endif
328 }
329
330 TheISA::PCState
331 pcState()
332 {
333 return _pcState;
334 }
335
336 void
337 pcState(const TheISA::PCState &val)
338 {
339 _pcState = val;
340 }
341
342 void
343 pcStateNoRecord(const TheISA::PCState &val)
344 {
345 _pcState = val;
346 }
347
348 Addr
349 instAddr()
350 {
351 return _pcState.instAddr();
352 }
353
354 Addr
355 nextInstAddr()
356 {
357 return _pcState.nextInstAddr();
358 }
359
360 MicroPC
361 microPC()
362 {
363 return _pcState.microPC();
364 }
365
366 bool readPredicate()
367 {
368 return predicate;
369 }
370
371 void setPredicate(bool val)
372 {
373 predicate = val;
374 }
375
376 MiscReg
377 readMiscRegNoEffect(int misc_reg, ThreadID tid = 0)
378 {
379 return isa->readMiscRegNoEffect(misc_reg);
380 }
381
382 MiscReg
383 readMiscReg(int misc_reg, ThreadID tid = 0)
384 {
385 return isa->readMiscReg(misc_reg, tc);
386 }
387
388 void
389 setMiscRegNoEffect(int misc_reg, const MiscReg &val, ThreadID tid = 0)
390 {
391 return isa->setMiscRegNoEffect(misc_reg, val);
392 }
393
394 void
395 setMiscReg(int misc_reg, const MiscReg &val, ThreadID tid = 0)
396 {
397 return isa->setMiscReg(misc_reg, val, tc);
398 }
399
400 int
401 flattenIntIndex(int reg)
402 {
403 return isa->flattenIntIndex(reg);
404 }
405
406 int
407 flattenFloatIndex(int reg)
408 {
409 return isa->flattenFloatIndex(reg);
410 }
411
412 int
413 flattenCCIndex(int reg)
414 {
415 return isa->flattenCCIndex(reg);
416 }
417
418 int
419 flattenMiscIndex(int reg)
420 {
421 return isa->flattenMiscIndex(reg);
422 }
423
424 unsigned readStCondFailures() { return storeCondFailures; }
425
426 void setStCondFailures(unsigned sc_failures)
427 { storeCondFailures = sc_failures; }
428
429 void syscall(int64_t callnum)
430 {
431 process->syscall(callnum, tc);
432 }
433
434 uint64_t readIntRegFlat(int idx) { return intRegs[idx]; }
435 void setIntRegFlat(int idx, uint64_t val) { intRegs[idx] = val; }
436
437 FloatReg readFloatRegFlat(int idx) { return floatRegs.f[idx]; }
438 void setFloatRegFlat(int idx, FloatReg val) { floatRegs.f[idx] = val; }
439
440 FloatRegBits readFloatRegBitsFlat(int idx) { return floatRegs.i[idx]; }
441 void setFloatRegBitsFlat(int idx, FloatRegBits val) {
442 floatRegs.i[idx] = val;
443 }
444
445#ifdef ISA_HAS_CC_REGS
446 CCReg readCCRegFlat(int idx) { return ccRegs[idx]; }
447 void setCCRegFlat(int idx, CCReg val) { ccRegs[idx] = val; }
448#else
449 CCReg readCCRegFlat(int idx)
450 { panic("readCCRegFlat w/no CC regs!\n"); }
451
452 void setCCRegFlat(int idx, CCReg val)
453 { panic("setCCRegFlat w/no CC regs!\n"); }
454#endif
455};
456
457
458// for non-speculative execution context, spec_mode is always false
459inline bool
460SimpleThread::misspeculating()
461{
462 return false;
463}
464
465#endif // __CPU_CPU_EXEC_CONTEXT_HH__
| 277 assert(flatIndex < TheISA::NumCCRegs);
278 uint64_t regVal(readCCRegFlat(flatIndex));
279 DPRINTF(CCRegs, "Reading CC reg %d (%d) as %#x.\n",
280 reg_idx, flatIndex, regVal);
281 return regVal;
282#else
283 panic("Tried to read a CC register.");
284 return 0;
285#endif
286 }
287
288 void setIntReg(int reg_idx, uint64_t val)
289 {
290 int flatIndex = isa->flattenIntIndex(reg_idx);
291 assert(flatIndex < TheISA::NumIntRegs);
292 DPRINTF(IntRegs, "Setting int reg %d (%d) to %#x.\n",
293 reg_idx, flatIndex, val);
294 setIntRegFlat(flatIndex, val);
295 }
296
297 void setFloatReg(int reg_idx, FloatReg val)
298 {
299 int flatIndex = isa->flattenFloatIndex(reg_idx);
300 assert(flatIndex < TheISA::NumFloatRegs);
301 setFloatRegFlat(flatIndex, val);
302 DPRINTF(FloatRegs, "Setting float reg %d (%d) to %f, %#x.\n",
303 reg_idx, flatIndex, val, floatRegs.i[flatIndex]);
304 }
305
306 void setFloatRegBits(int reg_idx, FloatRegBits val)
307 {
308 int flatIndex = isa->flattenFloatIndex(reg_idx);
309 assert(flatIndex < TheISA::NumFloatRegs);
310 // XXX: Fix array out of bounds compiler error for gem5.fast
311 // when checkercpu enabled
312 if (flatIndex < TheISA::NumFloatRegs)
313 setFloatRegBitsFlat(flatIndex, val);
314 DPRINTF(FloatRegs, "Setting float reg %d (%d) bits to %#x, %#f.\n",
315 reg_idx, flatIndex, val, floatRegs.f[flatIndex]);
316 }
317
318 void setCCReg(int reg_idx, CCReg val)
319 {
320#ifdef ISA_HAS_CC_REGS
321 int flatIndex = isa->flattenCCIndex(reg_idx);
322 assert(flatIndex < TheISA::NumCCRegs);
323 DPRINTF(CCRegs, "Setting CC reg %d (%d) to %#x.\n",
324 reg_idx, flatIndex, val);
325 setCCRegFlat(flatIndex, val);
326#else
327 panic("Tried to set a CC register.");
328#endif
329 }
330
331 TheISA::PCState
332 pcState()
333 {
334 return _pcState;
335 }
336
337 void
338 pcState(const TheISA::PCState &val)
339 {
340 _pcState = val;
341 }
342
343 void
344 pcStateNoRecord(const TheISA::PCState &val)
345 {
346 _pcState = val;
347 }
348
349 Addr
350 instAddr()
351 {
352 return _pcState.instAddr();
353 }
354
355 Addr
356 nextInstAddr()
357 {
358 return _pcState.nextInstAddr();
359 }
360
361 MicroPC
362 microPC()
363 {
364 return _pcState.microPC();
365 }
366
367 bool readPredicate()
368 {
369 return predicate;
370 }
371
372 void setPredicate(bool val)
373 {
374 predicate = val;
375 }
376
377 MiscReg
378 readMiscRegNoEffect(int misc_reg, ThreadID tid = 0)
379 {
380 return isa->readMiscRegNoEffect(misc_reg);
381 }
382
383 MiscReg
384 readMiscReg(int misc_reg, ThreadID tid = 0)
385 {
386 return isa->readMiscReg(misc_reg, tc);
387 }
388
389 void
390 setMiscRegNoEffect(int misc_reg, const MiscReg &val, ThreadID tid = 0)
391 {
392 return isa->setMiscRegNoEffect(misc_reg, val);
393 }
394
395 void
396 setMiscReg(int misc_reg, const MiscReg &val, ThreadID tid = 0)
397 {
398 return isa->setMiscReg(misc_reg, val, tc);
399 }
400
401 int
402 flattenIntIndex(int reg)
403 {
404 return isa->flattenIntIndex(reg);
405 }
406
407 int
408 flattenFloatIndex(int reg)
409 {
410 return isa->flattenFloatIndex(reg);
411 }
412
413 int
414 flattenCCIndex(int reg)
415 {
416 return isa->flattenCCIndex(reg);
417 }
418
419 int
420 flattenMiscIndex(int reg)
421 {
422 return isa->flattenMiscIndex(reg);
423 }
424
425 unsigned readStCondFailures() { return storeCondFailures; }
426
427 void setStCondFailures(unsigned sc_failures)
428 { storeCondFailures = sc_failures; }
429
430 void syscall(int64_t callnum)
431 {
432 process->syscall(callnum, tc);
433 }
434
435 uint64_t readIntRegFlat(int idx) { return intRegs[idx]; }
436 void setIntRegFlat(int idx, uint64_t val) { intRegs[idx] = val; }
437
438 FloatReg readFloatRegFlat(int idx) { return floatRegs.f[idx]; }
439 void setFloatRegFlat(int idx, FloatReg val) { floatRegs.f[idx] = val; }
440
441 FloatRegBits readFloatRegBitsFlat(int idx) { return floatRegs.i[idx]; }
442 void setFloatRegBitsFlat(int idx, FloatRegBits val) {
443 floatRegs.i[idx] = val;
444 }
445
446#ifdef ISA_HAS_CC_REGS
447 CCReg readCCRegFlat(int idx) { return ccRegs[idx]; }
448 void setCCRegFlat(int idx, CCReg val) { ccRegs[idx] = val; }
449#else
450 CCReg readCCRegFlat(int idx)
451 { panic("readCCRegFlat w/no CC regs!\n"); }
452
453 void setCCRegFlat(int idx, CCReg val)
454 { panic("setCCRegFlat w/no CC regs!\n"); }
455#endif
456};
457
458
459// for non-speculative execution context, spec_mode is always false
460inline bool
461SimpleThread::misspeculating()
462{
463 return false;
464}
465
466#endif // __CPU_CPU_EXEC_CONTEXT_HH__
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