diff options
author | Kevin Lim <ktlim@umich.edu> | 2006-09-30 23:43:23 -0400 |
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committer | Kevin Lim <ktlim@umich.edu> | 2006-09-30 23:43:23 -0400 |
commit | 4ed184eadefb16627f2807cb3dc7886bb1b920d1 (patch) | |
tree | 7704b61afbb10876c86329665fe7d35865ba611b /src/cpu/ozone/lw_lsq_impl.hh | |
parent | 51425382ca079290411e033acc8cf14dde36c82b (diff) | |
parent | 30b719fd768115bb26e848a02096350c11c1b0bd (diff) | |
download | gem5-4ed184eadefb16627f2807cb3dc7886bb1b920d1.tar.xz |
Merge ktlim@zamp:./local/clean/o3-merge/m5
into zamp.eecs.umich.edu:/z/ktlim2/clean/o3-merge/newmem
configs/boot/micro_memlat.rcS:
configs/boot/micro_tlblat.rcS:
src/arch/alpha/ev5.cc:
src/arch/alpha/isa/decoder.isa:
src/arch/alpha/isa_traits.hh:
src/cpu/base.cc:
src/cpu/base.hh:
src/cpu/base_dyn_inst.hh:
src/cpu/checker/cpu.hh:
src/cpu/checker/cpu_impl.hh:
src/cpu/o3/alpha/cpu_impl.hh:
src/cpu/o3/alpha/params.hh:
src/cpu/o3/checker_builder.cc:
src/cpu/o3/commit_impl.hh:
src/cpu/o3/cpu.cc:
src/cpu/o3/decode_impl.hh:
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/iew.hh:
src/cpu/o3/iew_impl.hh:
src/cpu/o3/inst_queue.hh:
src/cpu/o3/lsq.hh:
src/cpu/o3/lsq_impl.hh:
src/cpu/o3/lsq_unit.hh:
src/cpu/o3/lsq_unit_impl.hh:
src/cpu/o3/regfile.hh:
src/cpu/o3/rename_impl.hh:
src/cpu/o3/thread_state.hh:
src/cpu/ozone/checker_builder.cc:
src/cpu/ozone/cpu.hh:
src/cpu/ozone/cpu_impl.hh:
src/cpu/ozone/front_end.hh:
src/cpu/ozone/front_end_impl.hh:
src/cpu/ozone/lw_back_end.hh:
src/cpu/ozone/lw_back_end_impl.hh:
src/cpu/ozone/lw_lsq.hh:
src/cpu/ozone/lw_lsq_impl.hh:
src/cpu/ozone/thread_state.hh:
src/cpu/simple/base.cc:
src/cpu/simple_thread.cc:
src/cpu/simple_thread.hh:
src/cpu/thread_state.hh:
src/dev/ide_disk.cc:
src/python/m5/objects/O3CPU.py:
src/python/m5/objects/Root.py:
src/python/m5/objects/System.py:
src/sim/pseudo_inst.cc:
src/sim/pseudo_inst.hh:
src/sim/system.hh:
util/m5/m5.c:
Hand merge.
--HG--
rename : arch/alpha/ev5.cc => src/arch/alpha/ev5.cc
rename : arch/alpha/freebsd/system.cc => src/arch/alpha/freebsd/system.cc
rename : arch/alpha/isa/decoder.isa => src/arch/alpha/isa/decoder.isa
rename : arch/alpha/isa/mem.isa => src/arch/alpha/isa/mem.isa
rename : arch/alpha/isa_traits.hh => src/arch/alpha/isa_traits.hh
rename : arch/alpha/linux/system.cc => src/arch/alpha/linux/system.cc
rename : arch/alpha/system.cc => src/arch/alpha/system.cc
rename : arch/alpha/tru64/system.cc => src/arch/alpha/tru64/system.cc
rename : cpu/base.cc => src/cpu/base.cc
rename : cpu/base.hh => src/cpu/base.hh
rename : cpu/base_dyn_inst.hh => src/cpu/base_dyn_inst.hh
rename : cpu/checker/cpu.hh => src/cpu/checker/cpu.hh
rename : cpu/checker/cpu.cc => src/cpu/checker/cpu_impl.hh
rename : cpu/o3/alpha_cpu_builder.cc => src/cpu/o3/alpha/cpu_builder.cc
rename : cpu/checker/o3_cpu_builder.cc => src/cpu/o3/checker_builder.cc
rename : cpu/o3/commit_impl.hh => src/cpu/o3/commit_impl.hh
rename : cpu/o3/cpu.cc => src/cpu/o3/cpu.cc
rename : cpu/o3/fetch_impl.hh => src/cpu/o3/fetch_impl.hh
rename : cpu/o3/iew.hh => src/cpu/o3/iew.hh
rename : cpu/o3/iew_impl.hh => src/cpu/o3/iew_impl.hh
rename : cpu/o3/inst_queue.hh => src/cpu/o3/inst_queue.hh
rename : cpu/o3/inst_queue_impl.hh => src/cpu/o3/inst_queue_impl.hh
rename : cpu/o3/lsq_impl.hh => src/cpu/o3/lsq_impl.hh
rename : cpu/o3/lsq_unit.hh => src/cpu/o3/lsq_unit.hh
rename : cpu/o3/lsq_unit_impl.hh => src/cpu/o3/lsq_unit_impl.hh
rename : cpu/o3/mem_dep_unit_impl.hh => src/cpu/o3/mem_dep_unit_impl.hh
rename : cpu/o3/rename.hh => src/cpu/o3/rename.hh
rename : cpu/o3/rename_impl.hh => src/cpu/o3/rename_impl.hh
rename : cpu/o3/thread_state.hh => src/cpu/o3/thread_state.hh
rename : cpu/o3/tournament_pred.cc => src/cpu/o3/tournament_pred.cc
rename : cpu/o3/tournament_pred.hh => src/cpu/o3/tournament_pred.hh
rename : cpu/checker/cpu_builder.cc => src/cpu/ozone/checker_builder.cc
rename : cpu/ozone/cpu.hh => src/cpu/ozone/cpu.hh
rename : cpu/ozone/cpu_builder.cc => src/cpu/ozone/cpu_builder.cc
rename : cpu/ozone/cpu_impl.hh => src/cpu/ozone/cpu_impl.hh
rename : cpu/ozone/front_end.hh => src/cpu/ozone/front_end.hh
rename : cpu/ozone/front_end_impl.hh => src/cpu/ozone/front_end_impl.hh
rename : cpu/ozone/inorder_back_end_impl.hh => src/cpu/ozone/inorder_back_end_impl.hh
rename : cpu/ozone/inst_queue_impl.hh => src/cpu/ozone/inst_queue_impl.hh
rename : cpu/ozone/lw_back_end.hh => src/cpu/ozone/lw_back_end.hh
rename : cpu/ozone/lw_back_end_impl.hh => src/cpu/ozone/lw_back_end_impl.hh
rename : cpu/ozone/lw_lsq.hh => src/cpu/ozone/lw_lsq.hh
rename : cpu/ozone/lw_lsq_impl.hh => src/cpu/ozone/lw_lsq_impl.hh
rename : cpu/ozone/simple_params.hh => src/cpu/ozone/simple_params.hh
rename : cpu/ozone/thread_state.hh => src/cpu/ozone/thread_state.hh
rename : cpu/simple/cpu.cc => src/cpu/simple/base.cc
rename : cpu/cpu_exec_context.cc => src/cpu/simple_thread.cc
rename : cpu/thread_state.hh => src/cpu/thread_state.hh
rename : dev/ide_disk.hh => src/dev/ide_disk.hh
rename : python/m5/objects/BaseCPU.py => src/python/m5/objects/BaseCPU.py
rename : python/m5/objects/AlphaFullCPU.py => src/python/m5/objects/O3CPU.py
rename : python/m5/objects/OzoneCPU.py => src/python/m5/objects/OzoneCPU.py
rename : python/m5/objects/Root.py => src/python/m5/objects/Root.py
rename : python/m5/objects/System.py => src/python/m5/objects/System.py
rename : sim/eventq.hh => src/sim/eventq.hh
rename : sim/pseudo_inst.cc => src/sim/pseudo_inst.cc
rename : sim/pseudo_inst.hh => src/sim/pseudo_inst.hh
rename : sim/serialize.cc => src/sim/serialize.cc
rename : sim/stat_control.cc => src/sim/stat_control.cc
rename : sim/stat_control.hh => src/sim/stat_control.hh
rename : sim/system.hh => src/sim/system.hh
extra : convert_revision : 135d90e43f6cea89f9460ba4e23f4b0b85886e7d
Diffstat (limited to 'src/cpu/ozone/lw_lsq_impl.hh')
-rw-r--r-- | src/cpu/ozone/lw_lsq_impl.hh | 41 |
1 files changed, 32 insertions, 9 deletions
diff --git a/src/cpu/ozone/lw_lsq_impl.hh b/src/cpu/ozone/lw_lsq_impl.hh index 7eef4b11f..31ffa9d67 100644 --- a/src/cpu/ozone/lw_lsq_impl.hh +++ b/src/cpu/ozone/lw_lsq_impl.hh @@ -132,7 +132,7 @@ OzoneLWLSQ<Impl>::completeDataAccess(PacketPtr pkt) template <class Impl> OzoneLWLSQ<Impl>::OzoneLWLSQ() : switchedOut(false), dcachePort(this), loads(0), stores(0), - storesToWB(0), stalled(false), isStoreBlocked(false), + storesToWB(0), storesInFlight(0), stalled(false), isStoreBlocked(false), isLoadBlocked(false), loadBlockedHandled(false) { } @@ -173,6 +173,11 @@ OzoneLWLSQ<Impl>::name() const template<class Impl> void +OzoneLWLSQ<Impl>::regStats() +{ + lsqMemOrderViolation + .name(name() + ".memOrderViolation") + .desc("Number of memory ordering violations"); OzoneLWLSQ<Impl>::setCPU(OzoneCPU *cpu_ptr) { cpu = cpu_ptr; @@ -321,7 +326,7 @@ unsigned OzoneLWLSQ<Impl>::numFreeEntries() { unsigned free_lq_entries = LQEntries - loads; - unsigned free_sq_entries = SQEntries - stores; + unsigned free_sq_entries = SQEntries - (stores + storesInFlight); // Both the LQ and SQ entries have an extra dummy entry to differentiate // empty/full conditions. Subtract 1 from the free entries. @@ -385,6 +390,9 @@ OzoneLWLSQ<Impl>::executeLoad(DynInstPtr &inst) // Actually probably want the oldest faulting load if (load_fault != NoFault) { DPRINTF(OzoneLSQ, "Load [sn:%lli] has a fault\n", inst->seqNum); + if (!(inst->req->flags & UNCACHEABLE && !inst->isAtCommit())) { + inst->setExecuted(); + } // Maybe just set it as can commit here, although that might cause // some other problems with sending traps to the ROB too quickly. be->instToCommit(inst); @@ -461,6 +469,7 @@ OzoneLWLSQ<Impl>::executeStore(DynInstPtr &store_inst) // A load incorrectly passed this store. Squash and refetch. // For now return a fault to show that it was unsuccessful. memDepViolator = (*lq_it); + ++lsqMemOrderViolation; return TheISA::genMachineCheckFault(); } @@ -553,8 +562,8 @@ OzoneLWLSQ<Impl>::writebackStores() if ((*sq_it).size == 0 && !(*sq_it).completed) { sq_it--; - completeStore(inst->sqIdx); - + removeStore(inst->sqIdx); + completeStore(inst); continue; } @@ -626,6 +635,8 @@ OzoneLWLSQ<Impl>::writebackStores() inst->sqIdx,inst->readPC(), req->paddr, *(req->data), inst->seqNum); + DPRINTF(OzoneLSQ, "StoresInFlight: %i\n", + storesInFlight + 1); if (dcacheInterface) { assert(!req->completionEvent); @@ -687,6 +698,8 @@ OzoneLWLSQ<Impl>::writebackStores() } sq_it--; } + ++storesInFlight; +// removeStore(inst->sqIdx); } else { panic("Must HAVE DCACHE!!!!!\n"); } @@ -704,7 +717,7 @@ void OzoneLWLSQ<Impl>::squash(const InstSeqNum &squashed_num) { DPRINTF(OzoneLSQ, "Squashing until [sn:%lli]!" - "(Loads:%i Stores:%i)\n",squashed_num,loads,stores); + "(Loads:%i Stores:%i)\n",squashed_num,loads,stores+storesInFlight); LQIt lq_it = loadQueue.begin(); @@ -881,7 +894,7 @@ OzoneLWLSQ<Impl>::writeback(DynInstPtr &inst, PacketPtr pkt) template <class Impl> void -OzoneLWLSQ<Impl>::completeStore(int store_idx) +OzoneLWLSQ<Impl>::removeStore(int store_idx) { SQHashIt sq_hash_it = SQItHash.find(store_idx); assert(sq_hash_it != SQItHash.end()); @@ -891,8 +904,6 @@ OzoneLWLSQ<Impl>::completeStore(int store_idx) (*sq_it).completed = true; DynInstPtr inst = (*sq_it).inst; - --storesToWB; - if (isStalled() && inst->seqNum == stallingStoreIsn) { DPRINTF(OzoneLSQ, "Unstalling, stalling store [sn:%lli] " @@ -910,6 +921,13 @@ OzoneLWLSQ<Impl>::completeStore(int store_idx) SQItHash.erase(sq_hash_it); SQIndices.push(inst->sqIdx); storeQueue.erase(sq_it); +} + +template <class Impl> +void +OzoneLWLSQ<Impl>::completeStore(DynInstPtr &inst) +{ + --storesToWB; --stores; inst->setCompleted(); @@ -935,9 +953,14 @@ OzoneLWLSQ<Impl>::switchOut() switchedOut = true; // Clear the queue to free up resources + assert(stores == 0); + assert(storeQueue.empty()); + assert(loads == 0); + assert(loadQueue.empty()); + assert(storesInFlight == 0); storeQueue.clear(); loadQueue.clear(); - loads = stores = storesToWB = 0; + loads = stores = storesToWB = storesInFlight = 0; } template <class Impl> |