Commit graph

17 commits

Author SHA1 Message Date
Kevin Lim
047f77102b Merge ktlim@zizzer:/bk/newmem
into  zamp.eecs.umich.edu:/z/ktlim2/clean/tmp/clean2

src/cpu/base_dyn_inst.hh:
    Hand merge.  Line is no longer needed because it's handled in the ISA.

--HG--
extra : convert_revision : 0be4067aa38759a5631c6940f0167d48fde2b680
2007-03-23 13:20:19 -04:00
Kevin Lim
78de00091b 3 memory system fixes:
1. Update packet's flags properly when a snoop happens
2. Don't allow accesses to read a block's data if the block has outstanding MSHRs.  This avoids a RAW hazard in MP systems that the memory system was not detecting properly earlier (a write required a block to upgrade, and while the upgrade was outstanding, a read came along and read old data).
3. Update MSHR's request upon a response being handled.  If the MSHR has more targets than it can respond to in one cycle, then its request must be properly updated to the new head of the targets list.

src/mem/bus.cc:
    Update packet's flags properly upon snoop.
src/mem/cache/cache_impl.hh:
    Be sure to not allow accesses to a block with outstanding MSHRs.
src/mem/cache/miss/miss_queue.cc:
    Update MSHR's request upon a response being handled.

--HG--
extra : convert_revision : 76a9abc610ca3f1904f075ad21637148a41982d6
2007-03-23 13:09:37 -04:00
Steve Reinhardt
997fc505a8 Make memory commands dense again to avoid cache stat table explosion.
Created MemCmd class to wrap enum and provide handy methods to
check attributes, convert to string/int, etc.

--HG--
extra : convert_revision : 57f147ad893443e3a2040c6d5b4cdb1a8033930b
2007-02-07 10:53:37 -08:00
Steve Reinhardt
5fbf3aa471 Turn cache MissQueue/BlockingBuffer into virtual object
instead of template parameter.

--HG--
extra : convert_revision : fce0fbd041149b9c781eb23f480ba84fddbfd4a0
2006-12-04 09:10:53 -08:00
Ron Dreslinski
69e183941f If we didn't satisfy all targets, reset the packet we are requesting with.
--HG--
extra : convert_revision : 736372131b046eccf3520292fb3c086dc568d918
2006-11-13 21:34:25 -05:00
Nathan Binkert
a4c6f0d69e Use PacketPtr everywhere
--HG--
extra : convert_revision : d9eb83ab77ffd2d725961f295b1733137e187711
2006-10-20 00:10:12 -07:00
Ron Dreslinski
ba4c224c39 Fix problems with unCacheable addresses in timing-coherence
src/base/traceflags.py:
src/mem/physical.cc:
    Add debug falgs fro physical memory accesses
src/mem/cache/cache_impl.hh:
    Snoops to uncacheable blocks should not happen
src/mem/cache/miss/miss_queue.cc:
    Set the size properly on unCacheable accesses

--HG--
extra : convert_revision : fc78192863afb11fc7c591fba169021b9e127d16
2006-10-12 13:33:21 -04:00
Ron Dreslinski
cc78d86661 Fix several bugs pertaining to upgrades/mem leaks.
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
2006-10-10 01:32:18 -04:00
Ron Dreslinski
afce51d10a Set size properly on uncache accesses
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
2006-10-09 16:37:02 -04:00
Ron Dreslinski
1b6653b6f7 Remove threadnum from cache everywhere for now
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
2006-10-06 09:15:53 -04:00
Ron Dreslinski
d5ac1cb51f Pulled out changes to fix EIO programs with caches. Also fixes any 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
2006-08-15 16:21:46 -04:00
Ron Dreslinski
6592045cbc Some fixes so that MSHR's are matched and we don't issue overlapping 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
2006-07-10 17:16:15 -04:00
Ron Dreslinski
1bdc65b00f First pass, now compiles with current head of tree.
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
2006-06-30 16:25:35 -04:00
Ron Dreslinski
dea1a19b2d Fix the packet data allocation methods. Small fixes from changesets after 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
2006-06-30 11:34:27 -04:00
Ron Dreslinski
eafb5c4936 Still missing prefetch and tags directories as well as cache builder.
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
2006-06-29 16:07:19 -04:00
Ron Dreslinski
fc281d0b64 Backing in more changsets, getting closer to compile
base_cache.cc compiles, continuing on

src/SConscript:
    Add in compilation flags for cache files
src/mem/cache/base_cache.cc:
src/mem/cache/base_cache.hh:
    Back in more fixes, now base_cache compiles
src/mem/cache/cache.hh:
src/mem/cache/cache_blk.hh:
src/mem/cache/cache_impl.hh:
src/mem/cache/coherence/coherence_protocol.cc:
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/tags/fa_lru.cc:
src/mem/cache/tags/iic.cc:
src/mem/cache/tags/lru.cc:
src/mem/cache/tags/split_lifo.cc:
src/mem/cache/tags/split_lru.cc:
src/mem/packet.cc:
src/mem/packet.hh:
src/mem/request.hh:
    Backing in more changsets, getting closer to compile

--HG--
extra : convert_revision : ac2dcda39f8d27baffc4db1df17b9a1fcce5b6ed
2006-06-28 14:35:00 -04:00
Ron Dreslinski
ed8564a6b9 Was having difficulty with merging the cache, reverted to an early version and will add back in the patches to make it work soon.
src/mem/cache/prefetch/tagged_prefetcher_impl.hh:
    Trying to merge
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/coherence/uni_coherence.cc:
src/mem/cache/coherence/uni_coherence.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/prefetch/ghb_prefetcher.cc:
src/mem/cache/prefetch/ghb_prefetcher.hh:
src/mem/cache/prefetch/stride_prefetcher.cc:
src/mem/cache/prefetch/stride_prefetcher.hh:
src/mem/cache/prefetch/tagged_prefetcher.hh:
src/mem/cache/tags/base_tags.cc:
src/mem/cache/tags/base_tags.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/repl/gen.cc:
src/mem/cache/tags/repl/gen.hh:
src/mem/cache/tags/repl/repl.cc:
src/mem/cache/tags/repl/repl.hh:
src/mem/cache/tags/split.cc:
src/mem/cache/tags/split.hh:
src/mem/cache/tags/split_blk.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:
    Pulling an early version of the cache into the tree due to merging issues.  Will apply patches and push.

--HG--
extra : convert_revision : 3276e5fb9a6272681a1690babf2b586dd0e1f380
2006-06-28 11:02:14 -04:00