mt.hh (5561:eb5664be6075) mt.hh (5715:e8c1d4e669a7)
1/*
2 * Copyright (c) 2007 MIPS Technologies, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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73{
74 if (tc->status() == TC::Active) {
75 tc->halt();
76
77 // Save last known PC in TCRestart
78 // @TODO: Needs to check if this is a branch and if so, take previous instruction
79 tc->setMiscReg(TCRestart, tc->readNextPC());
80
1/*
2 * Copyright (c) 2007 MIPS Technologies, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

--- 64 unchanged lines hidden (view full) ---

73{
74 if (tc->status() == TC::Active) {
75 tc->halt();
76
77 // Save last known PC in TCRestart
78 // @TODO: Needs to check if this is a branch and if so, take previous instruction
79 tc->setMiscReg(TCRestart, tc->readNextPC());
80
81 warn("%i: Halting thread %i in %s @ PC %x, setting restart PC to %x", curTick, tc->getThreadNum(), tc->getCpuPtr()->name(),
81 warn("%i: Halting thread %i in %s @ PC %x, setting restart PC to %x", curTick, tc->threadId(), tc->getCpuPtr()->name(),
82 tc->readPC(), tc->readNextPC());
83 }
84}
85
86template <class TC>
87inline void
88restoreThread(TC *tc)
89{
90 if (tc->status() != TC::Active) {
91 // Restore PC from TCRestart
92 IntReg pc = tc->readMiscRegNoEffect(TCRestart);
93
94 // TODO: SET PC WITH AN EVENT INSTEAD OF INSTANTANEOUSLY
95 // tc->setPCEvent(pc, pc + 4, pc + 8);
96 tc->setPC(pc);
97 tc->setNextPC(pc + 4);
98 tc->setNextNPC(pc + 8);
99 tc->activate(0);
100
82 tc->readPC(), tc->readNextPC());
83 }
84}
85
86template <class TC>
87inline void
88restoreThread(TC *tc)
89{
90 if (tc->status() != TC::Active) {
91 // Restore PC from TCRestart
92 IntReg pc = tc->readMiscRegNoEffect(TCRestart);
93
94 // TODO: SET PC WITH AN EVENT INSTEAD OF INSTANTANEOUSLY
95 // tc->setPCEvent(pc, pc + 4, pc + 8);
96 tc->setPC(pc);
97 tc->setNextPC(pc + 4);
98 tc->setNextNPC(pc + 8);
99 tc->activate(0);
100
101 warn("%i: Restoring thread %i in %s @ PC %x", curTick, tc->getThreadNum(), tc->getCpuPtr()->name(),
101 warn("%i: Restoring thread %i in %s @ PC %x", curTick, tc->threadId(), tc->getCpuPtr()->name(),
102 tc->readPC());
103 }
104}
105
106template <class TC>
107void
108forkThread(TC *tc, Fault &fault, int Rd_bits, int Rs, int Rt)
109{

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212 tid_tcstatus_a == 1) {
213 ok = 1;
214 }
215 }
216
217 if (ok == 1) {
218 unsigned tcstatus = tc->readMiscRegNoEffect(TCStatus);
219 tc->setMiscReg(TCStatus, insertBits(tcstatus, TCS_A, TCS_A, 0));
102 tc->readPC());
103 }
104}
105
106template <class TC>
107void
108forkThread(TC *tc, Fault &fault, int Rd_bits, int Rs, int Rt)
109{

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212 tid_tcstatus_a == 1) {
213 ok = 1;
214 }
215 }
216
217 if (ok == 1) {
218 unsigned tcstatus = tc->readMiscRegNoEffect(TCStatus);
219 tc->setMiscReg(TCStatus, insertBits(tcstatus, TCS_A, TCS_A, 0));
220 warn("%i: Deactivating Hardware Thread Context #%i", curTick, tc->getThreadNum());
220 warn("%i: Deactivating Hardware Thread Context #%i", curTick, tc->threadId());
221 }
222 } else if (src_reg > 0) {
223 if (src_reg && !yield_mask != 0) {
224 unsigned vpe_control = tc->readMiscReg(VPEControl);
225 tc->setMiscReg(VPEControl, insertBits(vpe_control, VPEC_EXCPT_HI, VPEC_EXCPT_LO, 2));
226 fault = new ThreadFault();
227 } else {
228 //tc->setThreadRescheduleCondition(src_reg & yield_mask);

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233 unsigned tcstatus_dt = bits(tcstatus, TCS_DT);
234 unsigned vpe_control_ysi = bits(vpe_control, VPEC_YSI);
235
236 if (vpe_control_ysi == 1 && tcstatus_dt == 1 ) {
237 tc->setMiscReg(VPEControl, insertBits(vpe_control, VPEC_EXCPT_HI, VPEC_EXCPT_LO, 4));
238 fault = new ThreadFault();
239 } else {
240 //tc->ScheduleOtherThreads();
221 }
222 } else if (src_reg > 0) {
223 if (src_reg && !yield_mask != 0) {
224 unsigned vpe_control = tc->readMiscReg(VPEControl);
225 tc->setMiscReg(VPEControl, insertBits(vpe_control, VPEC_EXCPT_HI, VPEC_EXCPT_LO, 2));
226 fault = new ThreadFault();
227 } else {
228 //tc->setThreadRescheduleCondition(src_reg & yield_mask);

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233 unsigned tcstatus_dt = bits(tcstatus, TCS_DT);
234 unsigned vpe_control_ysi = bits(vpe_control, VPEC_YSI);
235
236 if (vpe_control_ysi == 1 && tcstatus_dt == 1 ) {
237 tc->setMiscReg(VPEControl, insertBits(vpe_control, VPEC_EXCPT_HI, VPEC_EXCPT_LO, 4));
238 fault = new ThreadFault();
239 } else {
240 //tc->ScheduleOtherThreads();
241 //std::cerr << "T" << tc->getThreadNum() << "YIELD: Schedule Other Threads.\n" << std::endl;
241 //std::cerr << "T" << tc->threadId() << "YIELD: Schedule Other Threads.\n" << std::endl;
242 //tc->suspend();
243 // Save last known PC in TCRestart
244 // @TODO: Needs to check if this is a branch and if so, take previous instruction
245 //tc->setMiscRegWithEffect(TCRestart, tc->readNextPC());
246 }
247 }
248
249 return src_reg & yield_mask;

--- 53 unchanged lines hidden --- 		242 //tc->suspend();
243 // Save last known PC in TCRestart
244 // @TODO: Needs to check if this is a branch and if so, take previous instruction
245 //tc->setMiscRegWithEffect(TCRestart, tc->readNextPC());
246 }
247 }
248
249 return src_reg & yield_mask;

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