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2008-10-09eventq: Major API change for the Event and EventQueue structures.Nathan Binkert
Since the early days of M5, an event needed to know which event queue it was on, and that data was required at the time of construction of the event object. In the future parallelized M5, this sort of requirement does not work well since the proper event queue will not always be known at the time of construction of an event. Now, events are created, and the EventQueue itself has the schedule function, e.g. eventq->schedule(event, when). To simplify the syntax, I created a class called EventManager which holds a pointer to an EventQueue and provides the schedule interface that is a proxy for the EventQueue. The intent is that objects that frequently schedule events can be derived from EventManager and then they have the schedule interface. SimObject and Port are examples of objects that will become EventManagers. The end result is that any SimObject can just call schedule(event, when) and it will just call that SimObject's eventq->schedule function. Of course, some objects may have more than one EventQueue, so this interface might not be perfect for those, but they should be relatively few.
2008-09-26When nesting if statements, use braces to avoid ambiguous else clauses.Nathan Binkert
2008-09-10style: Remove non-leading tabs everywhere they shouldn't be. Developers ↵Ali Saidi
should configure their editors to not insert tabs
2008-08-11params: Get rid of the remnants of the old style parameter configuration stuff.Nathan Binkert
2008-08-03Make default PhysicalMemory latency slightly more realistic.Steve Reinhardt
Also update stats to reflect change.
2008-07-15Use ReadResp instead of LoadLockedResp for LoadLockedReq responses.Steve Reinhardt
2008-07-15Add missing newlines to Bus DPRINTFs.Steve Reinhardt
2008-07-01Remove delVirtPort() and make getVirtPort() only return cached version.Ali Saidi
2008-07-01Change everything to use the cached virtPort rather than created their own ↵Ali Saidi
each time. This appears to work, but I don't want to commit it until it gets tested a lot more. I haven't deleted the functionality in this patch that will come later, but one question is how to enforce encourage objects that call getVirtPort() to not cache the virtual port since if the CPU changes out from under them it will be worse than useless. Perhaps a null function like delVirtPort() is still useful in that case.
2008-06-28Automated merge after backout.Steve Reinhardt
2008-06-28Backed out changeset 94a7bb476fca: caused memory leak.Steve Reinhardt
2008-06-21Make bus address conflict error more informativeSteve Reinhardt
2008-06-21Generate more useful error messages for unconnected ports.Steve Reinhardt
Force all non-default ports to provide a name and an owner in the constructor.
2008-06-15physmem: Add a null option to physical memory so it doesn't store data.Nathan Binkert
2008-06-15port: Clean up default port setup and port switchover code.Nathan Binkert
2008-06-14MemReq: Add option to reset the time on a request.Nathan Binkert
2008-06-13Get rid of bogus bus assertion.Steve Reinhardt
It runs out that if a MemObject turns around and does a send in its receive callback, and there are other sends already scheduled, then it could observe a state where it's not at the head of the list but the bus's sendEvent is not scheduled (because we're still in the middle of processing the prior sendEvent).
2008-06-13Get rid of bogus cache assertion.Steve Reinhardt
I was asserting that the only reason you would defer targets is if a write came in while you had an outstanding read miss, but there's another case where you could get a read access after you've snooped an invalidation and buffered it because it applies to a prior outstanding miss.
2008-05-15Make sure that output files are always checked success before they're used.Ali Saidi
Make OutputDirectory::resolve() private and change the functions using resolve() to instead use create(). --HG-- extra : convert_revision : 36d4be629764d0c4c708cec8aa712cd15f966453
2008-04-10SCons: add comments to SConscript documenting bug workaroundAli Saidi
--HG-- extra : convert_revision : e6cdffe953d56b96c76c7ff14d2dcc3de3ccfcc3
2008-04-10PhysicalMemory: Add parameter for variance in memory delay.Ali Saidi
--HG-- extra : convert_revision : b931472e81dedb650b7accb9061cb426f1c32e66
2008-04-08SCons: Manually specifying header only directories with Dir() works around ↵Ali Saidi
the problem --HG-- extra : convert_revision : d9713228d934cf4a45114a972603b8bca2bd27d3
2008-03-25Fix handling of writeback-induced writebacks in atomic mode.Steve Reinhardt
--HG-- extra : convert_revision : 4fa64f8a929f1aa36a9d5a71b8d1816b497aca4c
2008-03-24Delete the Request for a no-response PacketSteve Reinhardt
when the Packet is deleted, since the requester can't possibly do it. --HG-- extra : convert_revision : 8571b144ecb3c70efc06d09faa8b3161fb58352d
2008-03-24Don't FastAlloc MSHRs since we don't allocate them on the fly.Steve Reinhardt
--HG-- extra : convert_revision : 02775cfb460afe6df0df0938c62cccd93a71e775
2008-03-22Fix cache problem with writes to tempBlockSteve Reinhardt
getting wrong writeback address. --HG-- extra : convert_revision : 023dfb69c227c13a69bfe2744c6af75a45828b0b
2008-03-17Fix a few Packet memory leaks.Steve Reinhardt
--HG-- extra : convert_revision : 00db19f0698c0786f0dff561eea9217860a5a05a
2008-03-17Restructure bus timing calcs to cope with pkt being deleted by target.Steve Reinhardt
--HG-- extra : convert_revision : db8497e73a44f2a06aab121e797e88b4c0c31330
2008-03-15Fix subtle cache bug where read could return stale dataSteve Reinhardt
if a prior write miss arrived while an even earlier read miss was still outstanding. --HG-- extra : convert_revision : 4924e145829b2ecf4610b88d33f4773510c6801a
2008-02-26Revamp cache timing access mshr check to make stats sane again.Steve Reinhardt
--HG-- extra : convert_revision : 37009b8ee536807073b5a5ca07ed1d097a496aea
2008-02-26Cache: better comments particularly regarding writeback situation.Steve Reinhardt
--HG-- extra : convert_revision : 59ff9ee63ee0fec5a7dfc27b485b737455ccf362
2008-02-26Bus: Fix the bus timing to be more realistic.Gabe Black
--HG-- extra : convert_revision : acd70dc98ab840e55b114706fbb6afb2a95e54bc
2008-02-16Make L2+ caches allocate new block for writeback missesSteve Reinhardt
instead of forwarding down the line. --HG-- extra : convert_revision : b0d6e7862c92ea7a2d21f817d30398735e7bb8ba
2008-02-10Bus: Only update port cache when there is an item to update it with.Nicolas Zea
--HG-- extra : convert_revision : 84848fd48bb9e6693a0518c862364142b1969aa8
2008-02-10Fix #include lines for renamed cache files.Steve Reinhardt
--HG-- extra : convert_revision : b5008115dc5b34958246608757e69a3fa43b85c5
2008-02-10Rename cache files for brevity and consistency with rest of tree.Steve Reinhardt
--HG-- rename : src/mem/cache/base_cache.cc => src/mem/cache/base.cc rename : src/mem/cache/base_cache.hh => src/mem/cache/base.hh rename : src/mem/cache/cache_blk.cc => src/mem/cache/blk.cc rename : src/mem/cache/cache_blk.hh => src/mem/cache/blk.hh rename : src/mem/cache/cache_builder.cc => src/mem/cache/builder.cc rename : src/mem/cache/miss/mshr.cc => src/mem/cache/mshr.cc rename : src/mem/cache/miss/mshr.hh => src/mem/cache/mshr.hh rename : src/mem/cache/miss/mshr_queue.cc => src/mem/cache/mshr_queue.cc rename : src/mem/cache/miss/mshr_queue.hh => src/mem/cache/mshr_queue.hh rename : src/mem/cache/prefetch/base_prefetcher.cc => src/mem/cache/prefetch/base.cc rename : src/mem/cache/prefetch/base_prefetcher.hh => src/mem/cache/prefetch/base.hh rename : src/mem/cache/prefetch/ghb_prefetcher.cc => src/mem/cache/prefetch/ghb.cc rename : src/mem/cache/prefetch/ghb_prefetcher.hh => src/mem/cache/prefetch/ghb.hh rename : src/mem/cache/prefetch/stride_prefetcher.cc => src/mem/cache/prefetch/stride.cc rename : src/mem/cache/prefetch/stride_prefetcher.hh => src/mem/cache/prefetch/stride.hh rename : src/mem/cache/prefetch/tagged_prefetcher.cc => src/mem/cache/prefetch/tagged.cc rename : src/mem/cache/prefetch/tagged_prefetcher.hh => src/mem/cache/prefetch/tagged.hh rename : src/mem/cache/tags/base_tags.cc => src/mem/cache/tags/base.cc rename : src/mem/cache/tags/base_tags.hh => src/mem/cache/tags/base.hh rename : src/mem/cache/tags/Repl.py => src/mem/cache/tags/iic_repl/Repl.py rename : src/mem/cache/tags/repl/gen.cc => src/mem/cache/tags/iic_repl/gen.cc rename : src/mem/cache/tags/repl/gen.hh => src/mem/cache/tags/iic_repl/gen.hh rename : src/mem/cache/tags/repl/repl.hh => src/mem/cache/tags/iic_repl/repl.hh extra : convert_revision : ff7a35cc155a8d80317563c45cebe405984eac62
2008-02-06Make the Event::description() a const functionStephen Hines
--HG-- extra : convert_revision : c7768d54d3f78685e93920069f5485083ca989c0
2008-01-06Temporary fix for ll/sc bug see flyspray task for more info:Geoffrey Blake
http://www.m5sim.org/flyspray/task/197 Signed-off by: Ali Saidi <saidi@eecs.umich.edu> --HG-- extra : convert_revision : cdeece7e3163de9abf2c6c7435f1bc93570fab81
2008-01-02Add ReadRespWithInvalidate to handle multi-level coherence situationSteve Reinhardt
where we defer a response to a read from a far-away cache A, then later defer a ReadExcl from a cache B on the same bus as us. We'll assert MemInhibit in both cases, but in the latter case MemInhibit will keep the invalidation from reaching cache A. This special response tells cache A that it gets the block to satisfy its read, but must immediately invalidate it. --HG-- extra : convert_revision : f85c8b47bb30232da37ac861b50a6539dc81161b
2008-01-02Mark cache-to-cache MSHRs as downstreamPending when necessary.Steve Reinhardt
Don't mark upstream MSHR as pending if downstream MSHR is already in service. --HG-- extra : convert_revision : e1c135ff00217291db58ce8a06ccde34c403d37f
2008-01-02Don't DPRINTF in the middle of a PrintReq.Steve Reinhardt
--HG-- extra : convert_revision : 6358c014d14a19a34111c39827b05987507544bb
2008-01-02Bug fix: functional cache port now needs otherPort set.Steve Reinhardt
--HG-- extra : convert_revision : fb007df73a77535a5dba19341f7b0b32e8c99548
2008-01-02Additional comments and helper functions for PrintReq.Steve Reinhardt
--HG-- extra : convert_revision : 7eadf9b7db8c0289480f771271b6efe2400006d4
2008-01-02Add functional PrintReq command for memory-system debugging.Steve Reinhardt
--HG-- extra : convert_revision : 73b753e57c355b7e6873f047ddc8cb371c3136b7
2008-01-02Fix formatting and comments in cache_impl.hhSteve Reinhardt
--HG-- extra : convert_revision : 26d71cca5420ad03e16bf174e15dabe7f902da41
2007-11-28Make ports that aren't connected to anything fail more gracefully.Gabe Black
--HG-- extra : convert_revision : 3803b28fb2fdfd729f01f1a44df2ae02ef83a2fc
2007-11-19Memory: Cache the physical memory start and size so we don't need a dynamic ↵Ali Saidi
cast on every access. --HG-- extra : convert_revision : d6c3e93718991e7b68248242c80d8e6ac637ac51
2007-11-16Tweak check for writable block fill.Steve Reinhardt
--HG-- extra : convert_revision : c04281bcfc4cd23c7613aeccb21dc74452bcc951
2007-11-16Fix bug on exclusive response to ReadReq with pending WriteReq.Steve Reinhardt
--HG-- extra : convert_revision : 5429cd7ca84cf6348813a4607fa16f76aa5df7e0
2007-11-15branch mergeKorey Sewell
--HG-- extra : convert_revision : 1c56f3c6f2c50d642d2de5ddde83a55234455cec
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