diff options
Diffstat (limited to 'cpu/simple_cpu/simple_cpu.cc')
-rw-r--r-- | cpu/simple_cpu/simple_cpu.cc | 49 |
1 files changed, 12 insertions, 37 deletions
diff --git a/cpu/simple_cpu/simple_cpu.cc b/cpu/simple_cpu/simple_cpu.cc index 4bd7ce638..d48f93663 100644 --- a/cpu/simple_cpu/simple_cpu.cc +++ b/cpu/simple_cpu/simple_cpu.cc @@ -103,7 +103,7 @@ SimpleCPU::CacheCompletionEvent::CacheCompletionEvent(SimpleCPU *_cpu) void SimpleCPU::CacheCompletionEvent::process() { - cpu->processCacheCompletion(read); + cpu->processCacheCompletion(); } const char * @@ -414,25 +414,21 @@ template <class T> Fault SimpleCPU::read(Addr addr, T &data, unsigned flags) { - Fault fault; + memReq->reset(addr, sizeof(T), flags); - if (status() == DcacheMissStall) { - //Just do the functional access + // translate to physical address + Fault fault = xc->translateDataReadReq(memReq); + + // do functional access + if (fault == No_Fault) fault = xc->read(memReq, data); - if (traceData) { - traceData->setAddr(addr); - if (fault == No_Fault) - traceData->setData(data); - } - return fault; + if (traceData) { + traceData->setAddr(addr); + if (fault == No_Fault) + traceData->setData(data); } - memReq->reset(addr, sizeof(T), flags); - - // translate to physical address - fault = xc->translateDataReadReq(memReq); - // if we have a cache, do cache access too if (fault == No_Fault && dcacheInterface) { memReq->cmd = Read; @@ -444,25 +440,11 @@ SimpleCPU::read(Addr addr, T &data, unsigned flags) // a miss. We really should add first-class support for this // at some point. if (result != MA_HIT && dcacheInterface->doEvents()) { - cacheCompletionEvent.read = true; memReq->completionEvent = &cacheCompletionEvent; - //May later want to pass the staticinst as well, so it can call - //it independantly lastDcacheStall = curTick; unscheduleTickEvent(); _status = DcacheMissStall; } - else { - // do functional access - if (fault == No_Fault) - fault = xc->read(memReq, data); - - if (traceData) { - traceData->setAddr(addr); - if (fault == No_Fault) - traceData->setData(data); - } - } } if (!dcacheInterface && (memReq->flags & UNCACHEABLE)) @@ -543,7 +525,6 @@ SimpleCPU::write(T data, Addr addr, unsigned flags, uint64_t *res) // a miss. We really should add first-class support for this // at some point. if (result != MA_HIT && dcacheInterface->doEvents()) { - cacheCompletionEvent.read = false; memReq->completionEvent = &cacheCompletionEvent; lastDcacheStall = curTick; unscheduleTickEvent(); @@ -615,7 +596,7 @@ Tick save_cycle = 0; void -SimpleCPU::processCacheCompletion(bool read) +SimpleCPU::processCacheCompletion() { switch (status()) { case IcacheMissStall: @@ -625,9 +606,6 @@ SimpleCPU::processCacheCompletion(bool read) break; case DcacheMissStall: dcacheStallCycles += curTick - lastDcacheStall; - if (read) { - globalsi->execute(this,traceData); - } _status = Running; scheduleTickEvent(1); break; @@ -751,7 +729,6 @@ SimpleCPU::tick() // a miss. We really should add first-class support for this // at some point. if (result != MA_HIT && icacheInterface->doEvents()) { - cacheCompletionEvent.read = false; memReq->completionEvent = &cacheCompletionEvent; lastIcacheStall = curTick; unscheduleTickEvent(); @@ -776,8 +753,6 @@ SimpleCPU::tick() inst = htoa(inst); StaticInstPtr<TheISA> si(inst); - globalsi = si; - traceData = Trace::getInstRecord(curTick, xc, this, si, xc->regs.pc); |