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2006-10-09Handle NACK's that occur from devices on the same bus.Ron Dreslinski
Not fully implemented yet, but good enough for single level cache coherence src/mem/packet.hh: Add a bit to distinguish invalidates and upgrades --HG-- extra : convert_revision : 5bf50d535857cea37fbdaf7993915d1332cb757e
2006-10-09Fix how upgrades work.Ron Dreslinski
Remove some dead code. src/mem/cache/cache_impl.hh: Upgrades don't need a response. Moved satisfied check into bus so removed some dead code. src/mem/cache/coherence/coherence_protocol.cc: src/mem/packet.hh: Upgrades don't require a response --HG-- extra : convert_revision : dee0440ff19ba4c9e51bf9a47a5b0991265cfc1d
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
2006-10-09Fix a typo in the printfRon Dreslinski
--HG-- extra : convert_revision : bfa8ffae0a9bef25ceca168ff376ba816abf23f3
2006-10-09Fix a bitwise operation that was accidentally a logical operation.Ron Dreslinski
--HG-- extra : convert_revision : 30f64bcb6bea47fd8cd6d77b0df17eff04dbbad0
2006-10-09Merge zizzer:/z/m5/Bitkeeper/newmemRon Dreslinski
into zazzer.eecs.umich.edu:/z/rdreslin/m5bk/newmemcleanest --HG-- extra : convert_revision : b4cb1702ffa2fca298cfde47683cac019e1da900
2006-10-09Add more DPRINTF's fix a supply condition.Ron Dreslinski
src/mem/cache/cache_impl.hh: Add more usefull DPRINTF's REmove the PC to get rid of asserts --HG-- extra : convert_revision : 3f6d832b138d058dbe79bb5f42bd2db9c50b35b5
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
2006-10-09Have cpus send snoop rangesRon Dreslinski
--HG-- extra : convert_revision : 2a1fba141e409ee1d7a0b69b5b21d236e3d4ce68
2006-10-09Don't create a response if one isn't needed.Ron Dreslinski
--HG-- extra : convert_revision : 37bd230f527f64eb12779157869aae9dcfdde7fd
2006-10-09Don't block responses even if the cache is blocked.Ron Dreslinski
--HG-- extra : convert_revision : a1558eb55806b2a3e7e63249601df2c143e2235d
2006-10-08Make sure to propogate sendFunctional calls with functional not atomic.Ron Dreslinski
src/mem/cache/cache_impl.hh: Fix a error case by putting a panic in. Make sure to propogate sendFunctional calls with functional not atomic. --HG-- extra : convert_revision : 05d03f729a40cfa3ecb68bcba172eb560b24e897
2006-10-08Only respond if the pkt needs a response.Ron Dreslinski
Fix an issue with memory handling writebacks. src/mem/cache/base_cache.hh: src/mem/tport.cc: Only respond if the pkt needs a response. src/mem/physical.cc: Make physical memory respond to writebacks, set satisfied for invalidates/upgrades. --HG-- extra : convert_revision : 7601987a7923e54a6d1a168def4f8133d8de19fd
2006-10-08Merge zizzer:/z/m5/Bitkeeper/newmemRon Dreslinski
into zazzer.eecs.umich.edu:/z/rdreslin/m5bk/newmemcleanest --HG-- extra : convert_revision : f3067efb7f3ff30158d541dfc52de4ea8edae576
2006-10-08Move away from using the statusChange function on snoops. Clean up snooping ↵Ron Dreslinski
code in general. --HG-- extra : convert_revision : 5a57bfd7742a212047fc32e8cae0dc602fdc915c
2006-10-08Replace tests of LOCKED/UNCACHEABLE flags with isLocked()/isUncacheable().Steve Reinhardt
--HG-- extra : convert_revision : f22ce3221d270ecf8631d3dcaed05753accd5461
2006-10-07Fix a missing pointerRon Dreslinski
--HG-- extra : convert_revision : 2056b530d48fd004ab700f09e58f44adae3ea0e9
2006-10-07No need to keep trying to request the data bus if we are already waiting.Ron Dreslinski
--HG-- extra : convert_revision : dbaad52ed8d0841dc9224661e3df0d8ef4989aa3
2006-10-07Add mechanism for caches to handle failure of the fast path on responses.Ron Dreslinski
For now, responses have priority over requests (may want to revist this). src/mem/cache/base_cache.cc: src/mem/cache/base_cache.hh: Add mechanism for caches to handle failure of the fast path on responses. --HG-- extra : convert_revision : 01524c727d1bb300cc21bdc989eb862ec8bf0b7a
2006-10-07Fix infinite writebacks bug in cache.Ron Dreslinski
src/mem/cache/cache_impl.hh: Make sure to pop the list. Fixes infinite writeback bug. src/mem/cache/miss/mshr_queue.cc: Add an assert as sanity check in case .full() stops working again. --HG-- extra : convert_revision : d847e49a397eeb0b7c5ac060fcfc3eaeac921311
2006-10-06Merge zizzer:/z/m5/Bitkeeper/newmemRon Dreslinski
into zazzer.eecs.umich.edu:/z/rdreslin/m5bk/newmemcleanest --HG-- extra : convert_revision : 2f1bbe84c92879fd1bfa579adc62a367ece1cddd
2006-10-06Another thread number removedRon Dreslinski
--HG-- extra : convert_revision : 4cfb83b8162745d686e8697f29f74f37b1a71525
2006-10-06Remove threadnum from cache everywhere for nowRon Dreslinski
Fix so that blocking for the same reason doesn't fail. I.E. multiple writebacks want to set the blocked flag. src/mem/cache/miss/blocking_buffer.cc: src/mem/cache/miss/miss_queue.cc: src/mem/cache/miss/mshr.cc: Remove threadnum from cache everywhere for now --HG-- extra : convert_revision : 7890712147655280b4f1439d486feafbd5b18b2b
2006-10-06there are two main thrusts of this changeset.Lisa Hsu
1) return the periodicity of checkpoints back into the code (i.e. make m5 checkpoint n m meaningful again). 2) to do this, i had to much around with being able to repeatedly schedule and SimLoopExitEvent, which led to changes in how exit simloop events are handled to make this easier. src/arch/alpha/isa/decoder.isa: src/mem/cache/cache_impl.hh: modify arg. order for new calling convention of exitSimLoop. src/cpu/base.cc: src/sim/main.cc: src/sim/pseudo_inst.cc: src/sim/root.cc: now, instead of creating a new SimLoopExitEvent, call a wrapper schedExitSimLoop which handles all the default args. src/sim/sim_events.cc: src/sim/sim_events.hh: src/sim/sim_exit.hh: add the periodicity of checkpointing back into the code. to facilitate this, there are now two wrappers (instead of just overloading exitSimLoop). exitSimLoop is only for exiting NOW (i.e. at curTick), while schedExitSimLoop schedules and exit event for the future. --HG-- extra : convert_revision : c61f4bf05517172edd2c83368fd10bb0f0678029
2006-10-05Fixes for functional accesses to use the snoop path.Ron Dreslinski
And small other tweaks to snooping coherence. src/mem/cache/base_cache.hh: Make timing response at the time of send. src/mem/cache/cache.hh: src/mem/cache/cache_impl.hh: Update probe interface to be bi-directional for functional accesses src/mem/packet.hh: Add the function to create an atomic response to a given request --HG-- extra : convert_revision : 04075a117cf30a7df16e6d3ce485543cc77d4ca6
2006-10-05First pass at snooping stuff that compiles and doesn't break.Ron Dreslinski
Still need: -Handle NACK's on the recieve side -Distinguish top level caches -Handle repsonses from caches failing the fast path -Handle BusError and propogate it -Fix the invalidate packet associated with snooping in the cache src/mem/bus.cc: Make sure to snoop on functional accesses src/mem/cache/base_cache.cc: Wait to make a request into a response until it is ready to be issued src/mem/cache/base_cache.hh: Support range changes for snoops Set up snoop responses for cache->cache transfers src/mem/cache/cache_impl.hh: Only access the cache if it wasn't satisfied by cache->cache transfer Handle snoop phases (detect block, then snoop) Fix functional access to work properly (still need to fix snoop path for functional accesses) --HG-- extra : convert_revision : 4c25f11d7a996c1f56f4f7b55dde87a344e5fdf8
2006-08-22Still need LL/SC support in cache, add hack to always return success for nowRon Dreslinski
--HG-- extra : convert_revision : b354bd91be8c1bbb3aca7b4ba9e7e3e117ced164
2006-08-17Changes to build m5.fastSteve Reinhardt
--HG-- extra : convert_revision : 2ec600b8e72e40e8b96e3b1dbe0334aa05e0f30b
2006-08-16Merge zizzer:/z/m5/Bitkeeper/newmemRon Dreslinski
into zizzer.eecs.umich.edu:/.automount/zazzer/z/rdreslin/m5bk/newmem --HG-- extra : convert_revision : 659f84c883b9992ae48f26c837983b9f8fcf18ab
2006-08-16Fixes for blocking in the caches that needed to be pulledRon Dreslinski
src/mem/cache/base_cache.cc: Add in retry path for blocking with multi-level caches src/mem/cache/base_cache.hh: Pull more of the blocking fixes into head src/mem/packet.hh: Fix typo --HG-- extra : convert_revision : d4d149adfa414136ebd2c4789b739bb065710f7a
2006-08-15Merge zizzer:/bk/newmemAli Saidi
into zeep.pool:/z/saidi/tmp/m5.newmem --HG-- extra : convert_revision : d490a68eeabd0da7cd9791e14ca3678ed0fd31e6
2006-08-15fixes for gcc 4.1Ali Saidi
Nate needs to fix sinic builder stuff Gabe needs to verify my fixes to decoder.isa OPT/DEBUG compiles for ALPHA_FS, ALPHA_SE, MIPS_SE, SPARC_SE with this changeset README: Fix the swig version in the readme src/SConscript: remove sinic until nate fixes the builder crap for it src/arch/alpha/system.hh: src/arch/mips/isa/includes.isa: src/arch/sparc/isa/decoder.isa: src/base/stats/visit.cc: src/base/timebuf.hh: src/dev/ide_disk.cc: src/dev/sinic.cc: src/mem/cache/miss/mshr.cc: src/mem/cache/miss/mshr_queue.cc: src/mem/packet.hh: src/mem/request.hh: src/sim/builder.hh: src/sim/system.hh: fixes for gcc 4.1 --HG-- extra : convert_revision : 3775427c0047b282574d4831dd602c96cac3ba17
2006-08-15Pulled out changes to fix EIO programs with caches. Also fixes any ↵Ron Dreslinski
translatingPort read/write Blob function problems with caches. -Basically removed the ASID from places it is no longer needed due to PageTable 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.cc: src/mem/cache/miss/miss_queue.hh: 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/prefetch/base_prefetcher.hh: 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: Remove asid where it wasn't neccesary anymore due to Page Table --HG-- extra : convert_revision : ab8bbf4cc47b9eaefa9cdfa790881a21d0e7bf28
2006-08-15Merge zizzer:/z/m5/Bitkeeper/newmemRon Dreslinski
into zizzer.eecs.umich.edu:/.automount/zazzer/z/rdreslin/m5bk/newmem --HG-- extra : convert_revision : 8a8d7fe59610806015c8242a2f5eacf9afce7164
2006-08-15Some changes to support blocking in the cachesRon Dreslinski
src/mem/cache/base_cache.cc: src/mem/cache/base_cache.hh: src/mem/cache/cache_impl.hh: Outstanding blocking updates for cache --HG-- extra : convert_revision : 3a7b4aa4921de8239f604f1852f262a2305862c0
2006-08-15Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into ewok.(none):/home/gblack/m5/newmem src/cpu/static_inst.hh: SCCS merged --HG-- extra : convert_revision : a4f6377dbd691ab58fe5f7958b983b092575f250
2006-08-15Cleaned up include files and got rid of many using directives in header files.Gabe Black
--HG-- extra : convert_revision : 6b11e039cbc061dab75195fa1aebe6ca2cdc6f91
2006-08-14Fix up doxygen.Steve Reinhardt
--HG-- rename : docs/footer.html => src/doxygen/footer.html rename : docs/stl.hh => src/doxygen/stl.hh extra : convert_revision : 2b2e5637930843c1be07deaa708fd4126213cda2
2006-08-11#include of iostream needed.Gabe Black
--HG-- extra : convert_revision : d31bb943ab25103cf715159054df318a5b88abc9
2006-07-10Some fixes so that MSHR's are matched and we don't issue overlapping ↵Ron Dreslinski
requests with detailed cpu src/mem/cache/base_cache.cc: If we still have outstanding requests, need to schedule event again src/mem/cache/miss/miss_queue.cc: Need to use block size so overlapping requests match in the MSHR's src/mem/cache/miss/mshr.cc: Actually save the address, otherwise we can't match MSHR's --HG-- extra : convert_revision : f0f018b89c2fb99f3ce8d6eafc0712ee8edeeda8
2006-07-07Fix address range calculation. Still need bus to handle snoop ranges.Ron Dreslinski
On the way towards multi-level caches (L2) src/mem/cache/base_cache.cc: src/mem/cache/base_cache.hh: Fix address range calculation. Still need bus to handle snoop ranges. --HG-- extra : convert_revision : 800078d88aab5e563f4a9bb599f91cd44f36e625
2006-07-07Update cpus to use the getPort function to use a connector object to connect ↵Ron Dreslinski
the I/D cache ports to memory configs/test/test.py: Update to use new cpu getPort functionality src/cpu/base.cc: Make cpu's a memObject to expose getPort interface src/cpu/base.hh: Make cpu's a memObject to export getPort interface src/cpu/simple/atomic.cc: src/cpu/simple/atomic.hh: src/cpu/simple/timing.cc: src/cpu/simple/timing.hh: Now use the connector via getPort interface src/mem/cache/base_cache.cc: Make sure the cache recognizes all port names --HG-- extra : convert_revision : dbfefa978ec755bc8aa6f962ae158acf32dafe61
2006-07-06Timing cache works for hello world test.Ron Dreslinski
Still need 1) detailed CPU (blocking ability in cache) 1a) Multiple outstanding requests (need to keep track of times for events) 2)Multi-level support 3)MP coherece support 4)LL/SC support 5)Functional path needs to be correctly implemented (temporarily works without multiple outstanding requests (simple cpu)) src/cpu/simple/timing.cc: Temp hack because timing cpu doesn't export ports properly so single I/D cache communicates only through the Icache port. src/mem/cache/base_cache.cc: Handle marking MSHR's in service Add support for getting CSHR's src/mem/cache/base_cache.hh: Make these functions visible at the base cache level src/mem/cache/cache.hh: make the functions virtual src/mem/cache/cache_impl.hh: Rename the function to make sense src/mem/packet.hh: Accidentally clearing the needsResponse field when sending a response back. --HG-- extra : convert_revision : 2325d4e0b77e470fa9da91490317dc8ed88b17e2
2006-07-06Now timing reads work in single level of cache with simple cpuRon Dreslinski
src/mem/cache/base_cache.cc: src/mem/cache/base_cache.hh: src/mem/cache/cache.hh: Changes to handle timing reads in Simple CPU (blocking buffers) --HG-- extra : convert_revision : a2e7d4287d7cdfd1bbf9c929ecbeafde499a5b9f
2006-07-05Fix some unset values in the request in the timing CPU.Ron Dreslinski
Properly implement the MSHR allocate function. src/cpu/simple/timing.cc: Set the thread context in the CPU. Need to do this properly, currently I just set it to Cpu=0 Thread=0. This will just cause all the stats in the cache based on these to just yield totals and not a distribution. src/mem/cache/miss/mshr.cc: Properly implement the allocate function for the MSHR. --HG-- extra : convert_revision : bcece518e54ed1404db3196f996a77b4dd5c1c1e
2006-06-30AtomicSimpleCPU with a cache now runs the hello world! test program.Ron Dreslinski
Need to clean up a bunch of flags/hacks in the code. Then onto Timming mode. Functional accesses also work properly, although not exactly how we wanted them. I'll need to clean that up as well. src/cpu/simple/atomic.cc: Atomic CPU needs to set thread context so stats work in cache. Temporarily just use CPU=0 ThreadID=0 src/mem/cache/cache_impl.hh: Need to return success/failure properly still Physical memory object doesn't assert SATISFIED anymore, need to remove that flag src/mem/cache/tags/lru.cc: Doesn't work if the REQ doesn't set it's ASID. Temporary fix use 0 always --HG-- extra : convert_revision : d06a39684af593db699b64df9a29f80c61d8d050
2006-06-30First pass, now compiles with current head of tree.Ron Dreslinski
Compile and initialization work, still working on functionality. src/mem/cache/base_cache.cc: Temp fix for cpu's use of getPort functionality. CPU's will need to be ported to the new connector objects. Also, all packets have to have data or the delete fails. src/mem/cache/cache.hh: Fix function prototypes so overloading works src/mem/cache/cache_impl.hh: fix functions to match virtual base class src/mem/cache/miss/miss_queue.cc: Packets havve to have data, or delete fails src/python/m5/objects/BaseCache.py: Update for newmem --HG-- extra : convert_revision : 2b6ad1e9d8ae07ace9294cd257e2ccc0024b7fcb
2006-06-30Fix the packet data allocation methods. Small fixes from changesets after ↵Ron Dreslinski
my initial work. This now compiles. src/mem/cache/base_cache.cc: Fix getPort function that changed src/mem/cache/base_cache.hh: Fix get port function, provide default implementations of virtual functions in the base class src/mem/cache/cache.hh: Fix virtual function declerations src/mem/cache/cache_builder.cc: Fix params src/mem/cache/cache_impl.hh: src/mem/cache/miss/blocking_buffer.cc: src/mem/cache/miss/miss_queue.cc: src/mem/cache/miss/mshr.cc: src/mem/cache/prefetch/base_prefetcher.cc: src/mem/cache/tags/iic.cc: src/mem/cache/tags/lru.cc: Properly allocate data in packet --HG-- extra : convert_revision : dedf8b0f76ab90b06b60f8fe079c0ae361f91a48
2006-06-30All files compile in the mem directory except cache_builderRon Dreslinski
Missing some functionality (like split caches and copy support) src/SConscript: Typo src/mem/cache/prefetch/base_prefetcher.cc: src/mem/cache/prefetch/ghb_prefetcher.hh: src/mem/cache/prefetch/stride_prefetcher.hh: src/mem/cache/prefetch/tagged_prefetcher_impl.hh: 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.hh: src/mem/request.hh: Fix so it compiles --HG-- extra : convert_revision : 0d87d84f6e9445bab655c0cb0f8541bbf6eab904
2006-06-29Still missing prefetch and tags directories as well as cache builder.Ron Dreslinski
Some implementation details were left blank still, need to fill them in. src/SConscript: Reorder build to compile all files first src/mem/cache/cache.hh: src/mem/cache/cache_builder.cc: src/mem/cache/cache_impl.hh: src/mem/cache/coherence/coherence_protocol.cc: src/mem/cache/coherence/uni_coherence.cc: src/mem/cache/coherence/uni_coherence.hh: src/mem/cache/miss/blocking_buffer.cc: src/mem/cache/miss/miss_queue.cc: src/mem/cache/miss/mshr.cc: src/mem/cache/miss/mshr.hh: src/mem/cache/miss/mshr_queue.cc: More changesets pulled, now compiles everything in /miss directory and in the root directory src/mem/packet.hh: Add some more support, need to clean some of it out once everything is working --HG-- extra : convert_revision : ba73676165810edf2c2effaf5fbad8397d6bd800
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