diff options
Diffstat (limited to 'src/cpu/o3/rename_impl.hh')
-rw-r--r-- | src/cpu/o3/rename_impl.hh | 25 |
1 files changed, 2 insertions, 23 deletions
diff --git a/src/cpu/o3/rename_impl.hh b/src/cpu/o3/rename_impl.hh index 49abb0055..04a9020d7 100644 --- a/src/cpu/o3/rename_impl.hh +++ b/src/cpu/o3/rename_impl.hh @@ -1,5 +1,5 @@ /* - * Copyright (c) 2010-2012 ARM Limited + * Copyright (c) 2010-2012, 2014 ARM Limited * Copyright (c) 2013 Advanced Micro Devices, Inc. * All rights reserved. * @@ -77,7 +77,7 @@ DefaultRename<Impl>::DefaultRename(O3CPU *_cpu, DerivO3CPUParams *params) renameWidth, static_cast<int>(Impl::MaxWidth)); // @todo: Make into a parameter. - skidBufferMax = (2 * (decodeToRenameDelay * params->decodeWidth)) + renameWidth; + skidBufferMax = (decodeToRenameDelay + 1) * params->decodeWidth; } template <class Impl> @@ -247,7 +247,6 @@ DefaultRename<Impl>::resetStage() emptyROB[tid] = true; stalls[tid].iew = false; - stalls[tid].commit = false; serializeInst[tid] = NULL; instsInProgress[tid] = 0; @@ -1200,15 +1199,6 @@ DefaultRename<Impl>::readStallSignals(ThreadID tid) assert(stalls[tid].iew); stalls[tid].iew = false; } - - if (fromCommit->commitBlock[tid]) { - stalls[tid].commit = true; - } - - if (fromCommit->commitUnblock[tid]) { - assert(stalls[tid].commit); - stalls[tid].commit = false; - } } template <class Impl> @@ -1220,9 +1210,6 @@ DefaultRename<Impl>::checkStall(ThreadID tid) if (stalls[tid].iew) { DPRINTF(Rename,"[tid:%i]: Stall from IEW stage detected.\n", tid); ret_val = true; - } else if (stalls[tid].commit) { - DPRINTF(Rename,"[tid:%i]: Stall from Commit stage detected.\n", tid); - ret_val = true; } else if (calcFreeROBEntries(tid) <= 0) { DPRINTF(Rename,"[tid:%i]: Stall: ROB has 0 free entries.\n", tid); ret_val = true; @@ -1302,14 +1289,6 @@ DefaultRename<Impl>::checkSignalsAndUpdate(ThreadID tid) return true; } - if (fromCommit->commitInfo[tid].robSquashing) { - DPRINTF(Rename, "[tid:%u]: ROB is still squashing.\n", tid); - - renameStatus[tid] = Squashing; - - return true; - } - if (checkStall(tid)) { return block(tid); } |