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path: root/src/mem/cache/base_cache.cc
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2007-06-30Fix up a few statistics problems.Steve Reinhardt
Stats pretty much line up with old code, except: - bug in old code included L1 latency in L2 miss time, making it too high - UniCoherence did cache-to-cache transfers even from non-owner caches, so occasionally the icache would get a block from the dcache not the L2 - L2 can now receive ReadExReq from L1 since L1s have coherence --HG-- extra : convert_revision : 5052c1a1767b5a662f30a88f16012165a73b791c
2007-06-30Get rid of Packet result field. Error responses areSteve Reinhardt
now encoded in cmd field. --HG-- extra : convert_revision : d67819b7e3ee4b9a5bf08541104de0a89485e90b
2007-06-25Get rid of requestCauses. Use timestamped queue to makeSteve Reinhardt
sure we don't re-request bus prematurely. Use callback to avoid calling sendRetry() recursively within recvTiming. --HG-- extra : convert_revision : a907a2781b4b00aa8eb1ea7147afc81d6b424140
2007-06-24Better handling of deferred targets.Steve Reinhardt
--HG-- extra : convert_revision : 0fbc28c32c1eeb3dd672df14c1d53bd516f81d0f
2007-06-22Fixes to hitLatency, blocking, buffer allocation.Steve Reinhardt
Single-cpu timing mode seems to work now. --HG-- extra : convert_revision : 720f6172df18a1c941e5bd0e8fdfbd686c13c7ad
2007-06-21Getting closer...Steve Reinhardt
configs/example/memtest.py: Add progress interval option. src/base/traceflags.py: Add MemTest flag. src/cpu/memtest/memtest.cc: Clean up tracing. src/cpu/memtest/memtest.hh: Get rid of unused code. --HG-- extra : convert_revision : 92bd8241a6c90bfb6d908e5a5132cbdb500cbb87
2007-06-17More major reorg of cache. Seems to work for atomic mode now,Steve Reinhardt
timing mode still broken. configs/example/memtest.py: Revamp options. src/cpu/memtest/memtest.cc: No need for memory initialization. No need to make atomic response... memory system should do that now. src/cpu/memtest/memtest.hh: MemTest really doesn't want to snoop. src/mem/bridge.cc: checkFunctional() cleanup. src/mem/bus.cc: src/mem/bus.hh: src/mem/cache/base_cache.cc: src/mem/cache/base_cache.hh: src/mem/cache/cache.cc: src/mem/cache/cache.hh: src/mem/cache/cache_blk.hh: src/mem/cache/cache_builder.cc: src/mem/cache/cache_impl.hh: src/mem/cache/coherence/coherence_protocol.cc: src/mem/cache/coherence/coherence_protocol.hh: src/mem/cache/coherence/simple_coherence.hh: src/mem/cache/miss/SConscript: src/mem/cache/miss/mshr.cc: src/mem/cache/miss/mshr.hh: src/mem/cache/miss/mshr_queue.cc: src/mem/cache/miss/mshr_queue.hh: src/mem/cache/prefetch/base_prefetcher.cc: src/mem/cache/tags/fa_lru.cc: src/mem/cache/tags/fa_lru.hh: src/mem/cache/tags/iic.cc: src/mem/cache/tags/iic.hh: src/mem/cache/tags/lru.cc: src/mem/cache/tags/lru.hh: src/mem/cache/tags/split.cc: src/mem/cache/tags/split.hh: src/mem/cache/tags/split_lifo.cc: src/mem/cache/tags/split_lifo.hh: src/mem/cache/tags/split_lru.cc: src/mem/cache/tags/split_lru.hh: src/mem/packet.cc: src/mem/packet.hh: src/mem/physical.cc: src/mem/physical.hh: src/mem/tport.cc: More major reorg. Seems to work for atomic mode now, timing mode still broken. --HG-- extra : convert_revision : 7e70dfc4a752393b911880ff028271433855ae87
2007-05-22Fix getDeviceAddressRanges() to get snooping right.Steve Reinhardt
--HG-- extra : convert_revision : 2aeab25ef955ab9db7b968786faff227239fbbe4
2007-05-22Merge vm1.(none):/home/stever/bk/newmem-headSteve Reinhardt
into vm1.(none):/home/stever/bk/newmem-cache2 src/mem/cache/base_cache.hh: Manual conflict resolution. --HG-- extra : convert_revision : 5ebfd7abb4f978caa88bf43d25935869edfc6b9f
2007-05-21Change getDeviceAddressRanges to use bool for snoop arg.Steve Reinhardt
--HG-- extra : convert_revision : 832e52ba80cbab2f5bb6d5b5977a499d41b4d638
2007-05-18First set of changes for reorganized cache coherence support.Steve Reinhardt
Compiles but doesn't work... committing just so I can merge (stupid bk!). src/mem/bridge.cc: Get rid of SNOOP_COMMIT. src/mem/bus.cc: src/mem/packet.hh: Get rid of SNOOP_COMMIT & two-pass snoop. First bits of EXPRESS_SNOOP support. src/mem/cache/base_cache.cc: src/mem/cache/base_cache.hh: src/mem/cache/cache.hh: src/mem/cache/cache_impl.hh: src/mem/cache/miss/blocking_buffer.cc: src/mem/cache/miss/miss_queue.cc: src/mem/cache/prefetch/base_prefetcher.cc: Big reorg of ports and port-related functions & events. src/mem/cache/cache.cc: src/mem/cache/cache_builder.cc: src/mem/cache/coherence/SConscript: Get rid of UniCoherence object. --HG-- extra : convert_revision : 7672434fa3115c9b1c94686f497e57e90413b7c3
2007-05-13Eliminate unused PacketPtr from BaseCache'sSteve Reinhardt
RequestEvent and ResponseEvent. Compiles but not tested. --HG-- extra : convert_revision : cc791e7adea5b0406e986a0076edba51856b9105
2007-05-13Split BaseCache::CacheEvent into RequestEvent and ResponseEvent.Steve Reinhardt
Compiles but not tested. --HG-- extra : convert_revision : 4e1e28c4b87721ccfcf35a5ea62c1fa324acbaf9
2007-02-07Make memory commands dense again to avoid cache stat table explosion.Steve Reinhardt
Created MemCmd class to wrap enum and provide handy methods to check attributes, convert to string/int, etc. --HG-- extra : convert_revision : 57f147ad893443e3a2040c6d5b4cdb1a8033930b
2007-02-06Minor DPRINTF fixes.Steve Reinhardt
--HG-- extra : convert_revision : 41956c9a480163ecac7807982215027e8ff1a4a9
2006-12-13Split CachePort class into CpuSidePort and MemSidePortSteve Reinhardt
and push those into derived Cache template class to eliminate a few layers of virtual functions and conditionals ("if (isCpuSide) { ... }" etc.). --HG-- extra : convert_revision : cb1b88246c95b36aa0cf26d534127d3714ddb774
2006-11-13Fix a bug to handle the fact that a CPU can send Functional accesses while a ↵Ron Dreslinski
sendTiming has not returned in the call stack. src/mem/cache/base_cache.cc: Sometimes a functional access comes while waiting on a outstanding packet being sent. This could be because Timing CPU does some post processing on the recvTiming which send functional access. Either the CPU should leave the pkt/req around (so They can be referenced in the mem system). Or the mem system should remove them from outstanding lists and reinsert them if they fail in the sendTiming. I did the later, eventually we should consider doing the former if that is the correct behavior. --HG-- extra : convert_revision : be41e0d2632369dca9d7c15e96e5576d7583fe6a
2006-11-12Fix functional access errors related to delayed respnoses in cachePortRon Dreslinski
src/mem/cache/base_cache.cc: On a delayed response, be sure to call the fixPacket wrapper to toggle hasData flag. src/mem/packet.cc: src/mem/packet.hh: Create a wrapper to toggle the hasData flag on delayed responses --HG-- extra : convert_revision : 1ced8d4e3dc12a059fb7636d59e429cd3dd46901
2006-11-10More fixes for functional accesses. It now makes the writeback memory leak ↵Ron Dreslinski
to crash all configs. Working on that now. src/mem/cache/base_cache.cc: Keep a list of the responders so we can search them on functional accesses. src/mem/cache/base_cache.hh: Properly put things on a list for responses so we can search the list. Also, be sure to check the outgoing ports lists on a functional access (factor some common code out there) src/mem/cache/cache_impl.hh: Properly return when the first read hit on a functional access. Make sure to call to check the other ports list of packets before forwarding it out. --HG-- extra : convert_revision : 1d21cb55ff29c15716617efc48441329707c088a
2006-11-07Fix up bus draining and add draining to the caches.Kevin Lim
src/mem/bus.cc: Fix up draining to work properly. src/mem/bus.hh: Initialize drainEvent to NULL. src/mem/cache/base_cache.cc: src/mem/cache/base_cache.hh: Add draining to the caches. --HG-- extra : convert_revision : 3082220a75d50876f10909f9f99bec535889f818
2006-11-02Caches return a new functional port whenever asked for one.Kevin Lim
src/mem/cache/base_cache.cc: Have caches return a new functional port whenever asked for them. I'm pretty sure this is desired behavior. Ron can correct me if it's not. --HG-- extra : convert_revision : e1fadf895a7d714968128ff900d10e86fde53387
2006-10-31Ports now have a pointer to the MemObject that owns it (can be NULL).Kevin Lim
src/cpu/simple/atomic.hh: Port now takes in the MemObject that owns it. src/cpu/simple/timing.hh: Port now takes in MemObject that owns it. src/dev/io_device.cc: src/mem/bus.hh: Ports now take in the MemObject that owns it. src/mem/cache/base_cache.cc: Ports now take in the MemObject that own it. src/mem/port.hh: src/mem/tport.hh: Ports now optionally take in the MemObject that owns it. --HG-- extra : convert_revision : 890a72a871795987c2236c65937e06973412d349
2006-10-22Clean up cache DPRINTFsSteve Reinhardt
--HG-- extra : convert_revision : f836e77efd40e25259d7794dd148696586b79a09
2006-10-20Merge zizzer:/bk/newmemRon Dreslinski
into zazzer.eecs.umich.edu:/z/rdreslin/m5bk/newmemcleanest src/mem/tport.cc: Merge PacketPtr changes --HG-- extra : convert_revision : 0329c5803a3df67af3dda89bd9d4753fd1a286d1
2006-10-20Use fixPacket function everywhere.Ron Dreslinski
Fix fixPacket assert function. Stop timing port from forwarding the request if a response was found in its queue on a read. src/cpu/memtest/memtest.cc: src/cpu/memtest/memtest.hh: src/python/m5/objects/MemTest.py: Add parameter to configure what percentage of mem accesses are functional src/mem/cache/base_cache.cc: src/mem/cache/cache_impl.hh: Use fix Packet function src/mem/packet.cc: Fix an assert that was checking the wrong thing src/mem/tport.cc: Properly detect if we need to do the access to the functional device --HG-- extra : convert_revision : 447cc1a9a65ddd2a41e937fb09dc0e7c74e9c75e
2006-10-20Use PacketPtr everywhereNathan Binkert
--HG-- extra : convert_revision : d9eb83ab77ffd2d725961f295b1733137e187711
2006-10-19refactor code for the packet, get rid of packet_impl.hhNathan Binkert
and call it packet_access.hh and fix the #includes so things compile right. --HG-- extra : convert_revision : d3626c9715b9f7e51bb3ab8d97e971fad4e0b724
2006-10-19Fix corner case on assertion.Ron Dreslinski
I need to move over to using the fixPacket function so I don't have to make the same changes everywhere. Still a functional access bug someplace I need to track down in timing mode. src/mem/cache/base_cache.cc: src/mem/cache/cache_impl.hh: Fix corner case on assertion tests/configs/memtest.py: Updated memtester with uncacheable addresses and functional accesses --HG-- extra : convert_revision : e6fa851621700ff9227b83cc5cac20af4fc8444f
2006-10-18Merge zizzer:/bk/newmemRon Dreslinski
into zazzer.eecs.umich.edu:/z/rdreslin/m5bk/newmemcleanest --HG-- extra : convert_revision : 9e47881686a6c060fa28e7edfd9a0b556099bf30
2006-10-17Include packet_impl.hh (need this on my laptop,Steve Reinhardt
but not on zizzer... g++ 4 thing maybe?) --HG-- extra : convert_revision : 31c49f1c55fe9daf6365411bfb5bb7f6ccc8032d
2006-10-17Fixes for uni-coherence in timing mode for FS.Ron Dreslinski
Still a bug in atomic uni-coherence in FS. src/cpu/o3/fetch_impl.hh: src/cpu/o3/lsq_impl.hh: src/cpu/simple/atomic.cc: src/cpu/simple/timing.cc: Make CPU models handle coherence requests src/mem/cache/base_cache.cc: Properly signal coherence CSHRs src/mem/cache/coherence/uni_coherence.cc: Only deallocate once --HG-- extra : convert_revision : c4533de421c371c5532ee505e3ecd451511f5c99
2006-10-17Fixes to cache eliminating the assumption that the Packet is still valid ↵Ron Dreslinski
after sending out a request. Still need to rework upgrades into this system, but works for now. src/mem/cache/base_cache.cc: Re order code to be more readable src/mem/cache/base_cache.hh: Be sure to delete the copy on a bus block src/mem/cache/cache_impl.hh: Be sure to remove the copy on a writeback success src/mem/cache/miss/mshr_queue.cc: Demorgans to make it easier to understand src/mem/tport.cc: Delete writebacks --HG-- extra : convert_revision : 9519fb37b46ead781d340de29bb342a322a6a92e
2006-10-17Fix it so that the cache does not assume to gave the packet it sent out via ↵Ron Dreslinski
sendTiming. Still need to fix upgrades to use this path src/mem/cache/base_cache.cc: Copy the pkt to the MSHR before issuing the sendTiming where it may be changed/consumed src/mem/cache/cache_impl.hh: Use copy of packet, because sendTiming may have changed the pkt Also, delete the copy when the time comes --HG-- extra : convert_revision : 635cde6b4f08d010affde310c46b1caf50fbe424
2006-10-13Fix for DMA's in FS caches.Ron Dreslinski
Fix CSHR's for flow control. Fix for Bus Bridges reusing packets (clean flags up) Now both timing/atomic caches with MOESI in UP fail at same point. src/dev/io_device.hh: DMA's should send WriteInvalidates src/mem/bridge.cc: Reusing packet, clean flags in the packet set by bus. src/mem/cache/base_cache.cc: src/mem/cache/base_cache.hh: src/mem/cache/cache.hh: src/mem/cache/cache_impl.hh: src/mem/cache/coherence/simple_coherence.hh: src/mem/cache/coherence/uni_coherence.cc: src/mem/cache/coherence/uni_coherence.hh: Fix CSHR's for flow control. src/mem/packet.hh: Make a writeInvalidateResp, since the DMA expects responses to it's writes --HG-- extra : convert_revision : 59fd6658bcc0d076f4b143169caca946472a86cd
2006-10-12Fix CSHR retrysRon Dreslinski
--HG-- extra : convert_revision : caa7664f6c945396fa38ce62fbda018ebed4eaa6
2006-10-12Check the response queue on functional accesses.Ron Dreslinski
The response queue is not tying up an MSHR, should we change that or assume infinite storage for responses? src/mem/cache/base_cache.cc: src/mem/tport.cc: Add in functional check of retry queued packets. --HG-- extra : convert_revision : 0cb40b3a96d37a5e9eec95312d660ec6a9ce526a
2006-10-11Use bus response time paramteresRon Dreslinski
Fix bug with deadlocking src/mem/cache/base_cache.cc: Make sure to not wait anymore --HG-- extra : convert_revision : 5f7b44a1c475820b9862275a0d6113ec2991735d
2006-10-11When turning asserts into if's don't forget to invert.Ron Dreslinski
src/mem/cache/base_cache.cc: When turning asserts into if's don't forget to invert. Must be too sleepy. --HG-- extra : convert_revision : ea38d5a4b4ddde7b5266b3b2c83bbc256218af9a
2006-10-11Writebacks can be pulled out from under the BusRequest when snoops of ↵Ron Dreslinski
uprgades to owned blocks hit in the WB buffer --HG-- extra : convert_revision : f0502836a79ce303150daa7e571badb0bce3a97a
2006-10-10Only issue responses if we aren;t already blockedRon Dreslinski
--HG-- extra : convert_revision : 511c0bcd44b93d5499eefa8399f36ef8b6607311
2006-10-10Debugging infoRon Dreslinski
src/base/traceflags.py: Add new flags for cacheport src/mem/bus.cc: Add debugging info src/mem/cache/base_cache.cc: Add debuggin info --HG-- extra : convert_revision : a6c4b452466a8e0b50a86e886833cb6e29edc748
2006-10-10Some more code cleanupRon Dreslinski
src/mem/cache/base_cache.cc: Add sanity checks src/mem/cache/base_cache.hh: Fix for retry mechanism --HG-- extra : convert_revision : 9298e32e64194b1ef3fe51242595eaa56dcbbcfd
2006-10-10Fix some more mem leaks, still some leftRon Dreslinski
Update retry mechanism src/mem/cache/base_cache.cc: Rework the retry mechanism src/mem/cache/base_cache.hh: Rework the retry mechanism Try to fix memory bug src/mem/cache/cache_impl.hh: Rework upgrades to not be blocked by slave src/mem/cache/miss/mshr_queue.cc: Fix mem leak on writebacks --HG-- extra : convert_revision : 3cec234ee441edf398ec8d0f51a0c5d7ada1e2be
2006-10-10Fix cshr Retry'sRon Dreslinski
Fix Upgrades being blocked by slave --HG-- extra : convert_revision : cca98a38e32233145163577500f1362cd807ab15
2006-10-10Merge zizzer:/z/m5/Bitkeeper/newmemRon Dreslinski
into zazzer.eecs.umich.edu:/z/rdreslin/m5bk/newmemcleanest src/mem/packet.hh: Hand merge code --HG-- extra : convert_revision : d659418f24f4f4bf9867fec8573a5d227c0dfcea
2006-10-10Fix several bugs pertaining to upgrades/mem leaks.Ron Dreslinski
src/mem/cache/base_cache.cc: Fix a bug about not having a request to send src/mem/cache/base_cache.hh: Fix a bug with the blocking code src/mem/cache/cache.hh: AFix a bug with snoop hits in WB buffer src/mem/cache/cache_impl.hh: Fix a bug with snoop hits in WB buffer Also, add better DPRINTF's src/mem/cache/miss/miss_queue.cc: Fix a bug with upgrades (Need to clean it up later) src/mem/cache/miss/mshr.cc: Fix a memory leak bug, still some outstanding with writebacks not being deleted src/mem/cache/miss/mshr_queue.cc: Fix a bug about upgrades (need to clean up later) src/mem/packet.hh: Fix for newly added cmd attribute for upgrades tests/configs/memtest.py: More interesting testcase --HG-- extra : convert_revision : fcb4f17dd58b537bb4f67a8c835f50e455e8c688
2006-10-09Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into zeep.eecs.umich.edu:/home/gblack/m5/newmem_bus --HG-- extra : convert_revision : 2adde42edead2cedeeba60cc0d2697a2d58682be
2006-10-09One step closet to having NACK's work.Ron Dreslinski
src/cpu/memtest/memtest.cc: Fix functional return path src/cpu/memtest/memtest.hh: Add snoop ranges in src/mem/cache/base_cache.cc: Properly signal NACKED src/mem/cache/cache_impl.hh: Catch nacked packet and panic for now --HG-- extra : convert_revision : 59a64e82254dfa206681c5f987e6939167754d67
2006-10-09Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into zeep.eecs.umich.edu:/home/gblack/m5/newmem_bus --HG-- extra : convert_revision : 8267487b935eaf11665841ace3a5c664751b53b0
2006-10-09Set size properly on uncache accessesRon Dreslinski
Don't use the senderState after you get a succesful sendTiming. Not guarnteed to be correct src/mem/cache/base_cache.cc: src/mem/cache/base_cache.hh: src/mem/cache/cache.hh: src/mem/cache/cache_impl.hh: src/mem/cache/miss/blocking_buffer.cc: src/mem/cache/miss/blocking_buffer.hh: src/mem/cache/miss/miss_queue.hh: Don't use the senderState after you get a succesful sendTiming. Not guarnteed to be correct --HG-- extra : convert_revision : 2e8e812bf7fd3ba2b4cba7f7173cb41862f761af
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