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Author SHA1 Message Date
Steve Reinhardt
92ce2b5974 Deal with invalidations intersecting outstanding upgrades. 
If the invalidation beats the upgrade at a lower level
then the upgrade must be converted to a read exclusive
"in the field".
Restructure target list & deferred target list to
factor out some common code.

--HG--
extra : convert_revision : 7bab4482dd6c48efdb619610f0d3778c60ff777a
 2007-07-21 18:18:42 -07:00
Steve Reinhardt
9117860094 Several more fixes for multi-level timing coherence. 
- Add "deferred snoop" flag to Packet so upper-level caches
  can distinguish whether lower-level cache request was
  in-service or not at the time of the original snoop.
- Revamp response handling to properly handle deferred snoops
  on non-cache-fill requests (i.e. upgrades).
- Make sure forwarded writebacks are kept in write buffer at
  lower-level caches so they get snooped properly.

--HG--
extra : convert_revision : 17f8a3772a1ae31a16991a53f8225ddf54d31fc9
 2007-07-21 13:45:17 -07:00
Steve Reinhardt
a67a0025b3 Make sure responses never get blocked. 
--HG--
extra : convert_revision : 29f359d743994a94dc403aa0621ba72cd137d1a1
 2007-07-17 08:15:23 -07:00
Steve Reinhardt
a25f3ac67f Forward cache-to-cache responses through other caches. 
--HG--
extra : convert_revision : 5b6a02255bccd98b00949703cf4ba4b221553cea
 2007-07-17 06:33:28 -07:00
Steve Reinhardt
ff13827ccb Assert that an mshr has a target in getTarget(). 
--HG--
extra : convert_revision : 08091670fc319876012ed139fcd2584c364a980c
 2007-07-17 06:23:11 -07:00
Steve Reinhardt
f67c8b33cc Fix bug with timing snoop upcalls to MemTest object. 
--HG--
extra : convert_revision : 1940a5d231b4f856cf69578f68ea98435824dbd8
 2007-07-15 21:03:12 -07:00
Steve Reinhardt
e80ab26abc Add valgrind-suppressions file. 
--HG--
extra : convert_revision : 8c912aa723f2532c728b47a0bd83c3f3f27d7dfe
 2007-07-15 23:30:22 -04:00
Steve Reinhardt
d5bb145590 Merge from head. 
--HG--
extra : convert_revision : c5d045208e521f0bc9e47484a380917e27066798
 2007-07-15 23:22:04 -04:00
Steve Reinhardt
884807a68a Fix up a bunch of multilevel coherence issues. 
Atomic mode seems to work.  Timing is closer but not there yet.

--HG--
extra : convert_revision : 0dea5c3d4b973d009e9d4a4c21b9cad15961d56f
 2007-07-15 20:11:06 -07:00
Steve Reinhardt
f790f34fe3 Make Bus::findPort() a little more useful. 
Move check for loops outside, since half the call sites
end up working around it anyway.  Return integer port ID
instead of port object pointer.

--HG--
extra : convert_revision : 4c31fe9930f4d1aa4919e764efb7c50d43792ea3
 2007-07-15 20:09:03 -07:00
Steve Reinhardt
9172876dd7 Fix problem with unset max_loads in memtest. 
Also make default 0, and make that mean run forever.

--HG--
extra : convert_revision : 3e60a52b1c5e334a9ef3d744cf7ee1d851ba4aa9
 2007-07-15 14:32:55 -07:00
Steve Reinhardt
b1bdc3b3d9 Punt on old -n/-c memtest args. 
Also added comments to document treespec format.

--HG--
extra : convert_revision : fa9e8f66b68b96a4efca8a7fe6e7c37367382d9d
 2007-07-15 14:07:31 -07:00
Steve Reinhardt
ad560a6642 Add --force-bus option to memtest.py. 
--HG--
extra : convert_revision : 101735cca426903704ff2edaff051fa7c5bfc46c
 2007-07-15 13:22:49 -07:00
Steve Reinhardt
4bcfa916f1 New tree-based algorithm for creating more complex cache hierarchies. 
--HG--
extra : convert_revision : de8dd4ef5dae0f3e084461e8ef7c549653e61d3f
 2007-07-14 23:49:24 -07:00
Steve Reinhardt
658eeee507 Handle broken swig version that prints version info on stderr. 
--HG--
extra : convert_revision : 83021779c40972fa56893d21713c6115cd481bc4
 2007-07-14 21:35:26 -04:00
Steve Reinhardt
15a51d0cae Add CacheRepl trace flag and move a couple DPRINTFs to it. 
--HG--
extra : convert_revision : 31724d19ebdf2cdc2a2bafff83d17845b3a0b183
 2007-07-14 13:28:52 -07:00
Steve Reinhardt
abd194df5c Move a couple of DPRINTFs from Cache to CachePort. 
--HG--
extra : convert_revision : 55a0d26660aeb8f63b41897d53e6b2d1f0a163be
 2007-07-14 13:16:58 -07:00
Steve Reinhardt
3b4ff75939 Fix bug in copying packet with static data pointer. 
--HG--
extra : convert_revision : 2fcf99f050d73e007433c1db2475f2893c5961a0
 2007-07-14 13:14:53 -07:00
Steve Reinhardt
288f9cf7d2 Merge from head. 
--HG--
extra : convert_revision : f7b3700762b796d44f99aef05783db1ee9c7412e
 2007-07-14 12:23:47 -07:00
Steve Reinhardt
e5ecfa2745 Disable PrintThreadInfo since it causes a panic when using VPtr. 
See Flyspray #281.

--HG--
extra : convert_revision : 199ef802bcabed09f6ea6922c3a3954fea161190
 2007-07-14 12:22:04 -07:00
Steve Reinhardt
c2ee69d687 Make NO_FAST_ALLOC compile. 
--HG--
extra : convert_revision : 80579a61eb8d220e75cdee11bc09ca985c8fd85c
 2007-07-14 12:12:46 -07:00
Steve Reinhardt
a51e16dc89 Merge of DPRINTF fixes from head. 
--HG--
extra : convert_revision : f99a33b2df6a6c5592856d17d00e73ee83267442
 2007-07-14 12:09:37 -07:00
Steve Reinhardt
7cd6c7ee05 Fix & tweak DPRINTFs for tracediff w/new cache code. 
Note that we should *not* print pointer values in DPRINTFs as
these needlessly clutter tracediff output.

--HG--
extra : convert_revision : 25a448f1b3ac8d453a717a104ad6dc0112fb30bb
 2007-07-14 11:48:30 -07:00
Steve Reinhardt
b4178269df Merge in .hgignore from head. 
--HG--
extra : convert_revision : 4f3472bdd3a1d6398e99cf9ecbafdbde3d656b13
 2007-07-14 02:04:52 -04:00
Steve Reinhardt
855b3216f2 Merge with head 
--HG--
extra : convert_revision : cca352f891c6668e99e56f219ca276f950ba32cf
 2007-07-13 22:57:36 -07:00
Nathan Binkert
92bb9242fb ignore stuff that we don't want to see in the status 
--HG--
extra : convert_revision : c4a4711cf515507d4debcacacef5799adcfe3bef
 2007-07-13 22:39:41 -07:00
Nathan Binkert
2c8b9cbd7f transfer tags 
--HG--
extra : convert_revision : 7e83aabe9926dae16d4732a6260c89b4344919e9
 2007-07-13 22:24:04 -07:00
Steve Reinhardt
4738649e32 Delete packets when we're done with them. 
--HG--
extra : convert_revision : b8894d26e1ca7a6c9b736500accdaa53bfb09558
 2007-07-03 00:40:31 -04:00
Steve Reinhardt
4b68652c87 Couple more minor bug fixes for FS timing mode. 
src/cpu/simple/timing.cc:
    Fix another SC problem.
src/mem/cache/cache_impl.hh:
    Forgot to call makeTimingResponse() on uncached timing responses.

--HG--
extra : convert_revision : 5a5a58ca2053e4e8de2133205bfd37de15eb4209
 2007-07-02 13:57:45 -07:00
Steve Reinhardt
e9c04dad60 Fix a couple LL/SC bugs that only affected timing mode. 
src/cpu/simple/timing.cc:
    Fix swap/stq_c command bug.
src/mem/packet.cc:
    Fix incorrect LoadLockedReq command response field.

--HG--
extra : convert_revision : 7a4523be900bc2c9b1bdf2d372ce55f89ae58ae5
 2007-07-02 09:26:36 -07:00
Steve Reinhardt
ffd697e149 bus.cc: 
Fix atomic timing issue.

src/mem/bus.cc:
    Fix atomic timing issue.

--HG--
extra : convert_revision : a22ff80cd75f83c785b0604c2a4fde2e2e9f71ef
 2007-07-02 01:02:35 -07:00
Steve Reinhardt
3ad761bc8e Make CPU models use new LoadLockedReq/StoreCondReq commands. 
--HG--
extra : convert_revision : ab78d9d1d88c3698edfd653d71c8882e1272b781
 2007-06-30 20:35:42 -07:00
Steve Reinhardt
5e59739416 Don't propagate snoops across bridges. Wouldn't work anyway. 
--HG--
extra : convert_revision : af29fc7d0c134f5e89dd2e814c819151350fcb38
 2007-06-30 18:03:17 -07:00
Steve Reinhardt
07f091d6ed Get rid of remaining traces of obsolete CoherenceProtocol object. 
--HG--
extra : convert_revision : c5555b00bef1b304a84886188ad2c0dcb4d7c5b9
 2007-06-30 17:59:45 -07:00
Steve Reinhardt
2447abe5ce Can only call makeAtomicResponse() once... 
--HG--
extra : convert_revision : c49aade46aa64f979da35eb653b544ee5bd82f01
 2007-06-30 17:56:30 -07:00
Steve Reinhardt
d10a843723 Get rid of obsolete fixPacket() functions. 
Handled by Packet::checkFunctional() now.

--HG--
extra : convert_revision : 63642254e2789c80a369ac269f317ec054ffe3c0
 2007-06-30 17:51:29 -07:00
Steve Reinhardt
ee54ad318a Event descriptions should not end in "event" 
(they function as adjectives not nouns)

--HG--
extra : convert_revision : 6506474ff3356ae8c80ed276c3608d8a4680bfdb
 2007-06-30 17:45:58 -07:00
Steve Reinhardt
f0c4dd7920 Factor out a little more common code. 
--HG--
extra : convert_revision : 626255a91679d534030c91bcdb4fc1bed36ceb9b
 2007-06-30 13:56:25 -07:00
Steve Reinhardt
6babda7123 Fix up a few statistics problems. 
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
 2007-06-30 13:34:16 -07:00
Steve Reinhardt
6ab53415ef Get rid of Packet result field. Error responses are 
now encoded in cmd field.

--HG--
extra : convert_revision : d67819b7e3ee4b9a5bf08541104de0a89485e90b
 2007-06-30 10:16:18 -07:00
Steve Reinhardt
749126e011 Merge vm1.(none):/home/stever/bk/newmem-head 
into  vm1.(none):/home/stever/bk/newmem-cache2

--HG--
extra : convert_revision : 1e94283da8007fce8e1a0f2849ce5d5a8dbbaffd
 2007-06-29 13:03:36 -07:00
Korey Sewell
738ecc495b fix store instructions, pass fast/quick Atomic/TimingSimpleCPU regressions... 
src/arch/mips/isa/decoder.isa:
    commment out deret instruction for now...
src/arch/mips/isa/formats/fp.isa:
    edit fp format
src/arch/mips/isa/formats/mem.isa:
    fix for basic store instructions

--HG--
extra : convert_revision : 30cb5a474e78ac9292b6ab37d433db947a177731
 2007-06-29 15:13:50 -04:00
Steve Reinhardt
7f3dfa7c09 Merge vm1.(none):/home/stever/bk/newmem-head 
into  vm1.(none):/home/stever/bk/newmem-cache2

--HG--
extra : convert_revision : b1c954c187e3b3172a194396ba63808253121195
 2007-06-28 08:28:58 -07:00
Korey Sewell
e28cbc98a0 o3cpu build for mips 
--HG--
extra : convert_revision : 2c0be7a8c0a54ba5b1b2b69468f788d20abc8452
 2007-06-28 05:30:46 -04:00
Steve Reinhardt
9117c94f9c Get rid of coherence protocol object. 
--HG--
extra : convert_revision : 4ff144342dca23af9a12a2169ca318a002654b42
 2007-06-27 20:54:13 -07:00
Steve Reinhardt
c4903e0882 Revamp replacement-of-upgrade handling. 
--HG--
extra : convert_revision : 9bc09d8ae6d50e6dfbb4ab21514612f9aa102a2e
 2007-06-26 23:30:30 -07:00
Steve Reinhardt
1b20df5607 Handle deferred snoops better. 
--HG--
extra : convert_revision : 703da6128832eb0d5cfed7724e5105f4b3fe4f90
 2007-06-26 22:23:10 -07:00
Steve Reinhardt
69ff6d9163 cache_impl.hh: 
Change target overflow from assertion to warning.

src/mem/cache/cache_impl.hh:
    Change target overflow from assertion to warning.

--HG--
extra : convert_revision : ceca990ed916bbf96dedd4836c40df522803f173
 2007-06-26 18:01:22 -04:00
Steve Reinhardt
7dacbcf492 Handle replacement of block with pending upgrade. 
src/mem/cache/tags/lru.cc:
    Add some replacement DPRINTFs

--HG--
extra : convert_revision : 7993ec24d6af7e7774d04ce36f20e3f43f887fd9
 2007-06-26 14:53:15 -07:00
Steve Reinhardt
f697e959a1 Couple minor bug fixes... 
src/mem/cache/cache_impl.hh:
    Handle grants with no packet.
src/mem/cache/miss/mshr.cc:
    Fix MSHR snoop hit handling.

--HG--
extra : convert_revision : f365283afddaa07cb9e050b2981ad6a898c14451
 2007-06-25 22:23:29 -07:00