Commit graph

362 commits

Author SHA1 Message Date
Korey Sewell
b45cf21a8e Fix Load/Store Queue squashing after a SMT thread is removed but ensuring
you are squashing from the current instruction # causing the thread exit.

--HG--
extra : convert_revision : ccbeece7dd1d5fee43f30ab19370908972113473
2008-02-27 16:53:08 -05:00
Korey Sewell
34715cc691 Fix offset in removeThread() function so that float registers start freeing up
from the right point (#32 usually) instead of restarting at 0 and double-freeing.

Commented out assert line in free_list.hh that will check for when double-free condition
goes bad.

--HG--
extra : convert_revision : 08d5f9b6a874736e487d101e85c22aaa67bf59ae
2008-02-27 16:48:33 -05:00
Gabe Black
8b4796a367 TLB: Make a TLB base class and put a virtual demapPage function in it.
--HG--
extra : convert_revision : cc0e62a5a337fd5bf332ad33bed61c0d505a936f
2008-02-26 23:38:51 -05:00
Stephen Hines
6cc1573923 Make the Event::description() a const function
--HG--
extra : convert_revision : c7768d54d3f78685e93920069f5485083ca989c0
2008-02-06 16:32:40 -05:00
Stephen Hines
0ccf9a2c37 Add base ARM code to M5
--HG--
extra : convert_revision : d811bf87d1a0bfc712942ecd3db1b48fc75257af
2008-02-05 23:44:13 -05:00
Ke Meng
0b6876a0c0 The reason is that the event is supposed to put the instructions ready to execute for next cycle. And the FUCompletion event has a lower priority than CPU tick event. It is called after the iew->tick() for current cycle has already been executed and the issueToExecuteQueue has already advanced this time. And assume the issueToExecuteLatency is 1, to catch up, the increasement should be made at access(-1) instead of access(0). Otherwise I found it could increase the actual op_latency of the instructions to execute by 1 cycle and potentially put the simulated CPU into a permanent idle state.
Signed-off by: Ali Saidi <saidi@eecs.umich.edu>

--HG--
extra : convert_revision : dafc16814383e8e8f8320845edf6ab2bcfed1e1d
2008-01-14 11:47:32 -05:00
Steve Reinhardt
3952e41ab1 Add functional PrintReq command for memory-system debugging.
--HG--
extra : convert_revision : 73b753e57c355b7e6873f047ddc8cb371c3136b7
2008-01-02 12:20:15 -08:00
Korey Sewell
d09ab2bd22 add thread id to misc. reg functions
--HG--
extra : convert_revision : 35d073d1279947d943a0290832e09a5268dd0b76
2007-11-15 20:35:49 -05:00
Korey Sewell
cf9dc4b151 add microPC stuff back in. got deleted on changeset propragation somehow.
--HG--
extra : convert_revision : 5e89484b2ef21457ffba35ef959df999a28c5676
2007-11-15 19:48:53 -05:00
Korey Sewell
8f8e7fe08e put the flattenIndex stuff back in O3 AND put fatal() back in faults
--HG--
extra : convert_revision : 16fb8d7f3fbc5f8f1fc3ed34427c3d90a3125ad0
2007-11-15 16:38:09 -05:00
Korey Sewell
789153dff6 Get MIPS simple regression working. Take out unecessary functions "setShadowSet", "CacheOp"
--HG--
extra : convert_revision : a9ae8a7e62c27c2db16fd3cfa7a7f0bf5f0bf8ea
2007-11-15 03:10:41 -05:00
Korey Sewell
375ddf8d25 branch merge
--HG--
extra : convert_revision : 1c56f3c6f2c50d642d2de5ddde83a55234455cec
2007-11-15 00:14:20 -05:00
Korey Sewell
2692590049 Add in files from merge-bare-iron, get them compiling in FS and SE mode
--HG--
extra : convert_revision : d4e19afda897bc3797868b40469ce2ec7ec7d251
2007-11-13 16:58:16 -05:00
Gabe Black
f17f3d20be X86: Implement a page table walker.
--HG--
extra : convert_revision : 36bab5750100318faa9ba7178dc2e38590053aec
2007-11-12 14:38:24 -08:00
Gabe Black
7a39457d7f X86: Make the micropc available through the thread context objects.
This is necssary for fault handlers that branch to non-zero micro PCs.

--HG--
extra : convert_revision : c1cb4863d779a9f4a508d0b450e64fb7a985f264
2007-11-12 14:38:17 -08:00
Gabe Black
19292d3f06 O3: Remove unneeded variable.
--HG--
extra : convert_revision : 4624ccd3f08818f4632881d6aca6d1cc343bbdcf
2007-11-06 12:51:08 -08:00
Ali Saidi
538fae951b Traceflags: Add SCons function to created a traceflag instead of having one file with them all.
--HG--
extra : convert_revision : 427f6bd8f050861ace3bc0d354a1afa5fc8319e6
2007-10-31 01:21:54 -04:00
Gabe Black
7571e8346d CPU: Make the cpuid parameter get set in SE mode as well.
--HG--
extra : convert_revision : bc47206acb683ebaaa31f57af79b4b8db64e4d31
2007-10-02 18:33:57 -07:00
Gabe Black
988cdb49f2 CPU: Make the cpus check the pc event queues in SE mode.
--HG--
extra : convert_revision : 9dc4ea136c3c3f87a73d55e91bc4aae4eba70464
2007-10-02 18:25:37 -07:00
Gabe Black
3eeda8008d CPU: Make sure the system parameter gets set in the cpu builders. Other parameters need to be fixed as well.
--HG--
extra : convert_revision : 0401970a79855ee0a96eb29305346ce07b5c98ea
2007-10-02 18:22:36 -07:00
Ali Saidi
d325f49b70 Rename cycles() function to ticks()
--HG--
extra : convert_revision : 790eddb793d4f5ba35813d001037bd8601bd76a5
2007-09-28 13:21:52 -04:00
Ali Saidi
887cd6a273 Update statistics to use cycles properly instead of ticks
--HG--
extra : convert_revision : 62911280b631ef24720f9ce701d1c19a9b8a9784
2007-09-28 13:21:30 -04:00
Gabe Black
f3f3747431 X86: Put in the foundation for x87 stack based fp registers.
--HG--
extra : convert_revision : 940f92efd4a9dc59106e991cc6d9836861ab69de
2007-09-19 18:26:42 -07:00
Miles Kaufmann
54cc0053f0 params: Deprecate old-style constructors; update most SimObject constructors.
SimObjects not yet updated:
- Process and subclasses
- BaseCPU and subclasses

The SimObject(const std::string &name) constructor was removed.  Subclasses
that still rely on that behavior must call the parent initializer as
  : SimObject(makeParams(name))

--HG--
extra : convert_revision : d6faddde76e7c3361ebdbd0a7b372a40941c12ed
2007-08-30 15:16:59 -04:00
Gabe Black
7227ab5f22 Merge with head
--HG--
extra : convert_revision : cc73b9aaf73e9dacf52f3350fa591e67ca4ccee6
2007-08-26 21:45:40 -07:00
Gabe Black
537239b278 Address Translation: Make SE mode use an actual TLB/MMU for translation like FS.
--HG--
extra : convert_revision : a04a30df0b6246e877a1cea35420dbac94b506b1
2007-08-26 20:24:18 -07:00
Gabe Black
20e0a3792a Merge with head.
--HG--
extra : convert_revision : 9ef81afcfabd86c9c069204998c987344f03f33e
2007-08-21 16:19:46 -07:00
Kevin Lim
e1054170b5 o3: Fix for retry ID bug.
It should be cleared prior to the call to recvRetry.
Add extra DPRINTF statement for clearer debugging output.

--HG--
extra : convert_revision : e2332754743f42d60e159ac89f6fb0fd8b7f57f8
2007-08-21 16:16:56 -07:00
Gabe Black
92a57edff1 O3: Set up the predicted npc and nnpc for a fault carrying noop so that it doesn't cause a false branch mispredict.
--HG--
extra : convert_revision : 2820597cc966cd7b128cef0dab48fe05089533d7
2007-08-13 16:08:58 -07:00
Gabe Black
82f78ebd39 Move the "translate" member functions back into the base o3 class.
--HG--
extra : convert_revision : 3c480537bf38f74f0f1d72e75c70aa46ba91b759
2007-08-13 16:01:09 -07:00
Steve Reinhardt
c4c8a12186 Merge from head.
--HG--
extra : convert_revision : af16bc685ea28e44b8120f16b72f60a21d68c1e2
2007-07-31 00:37:07 -04:00
Gabe Black
24ac08daa4 Fix problem with tracer not being initialized.
--HG--
extra : convert_revision : 09610ad84afa605db2d0eab9945eb9809f297182
2007-07-30 13:13:11 -07:00
Steve Reinhardt
08474ccf68 Merge Gabe's changes from head.
--HG--
extra : convert_revision : d00b7b09c7f19bc0e37b385ef7c124f69c0e917f
2007-07-29 13:25:14 -07:00
Gabe Black
8dd7700482 Turn the instruction tracing code into pluggable sim objects.
These need to be refined a little still and given parameters.

--HG--
extra : convert_revision : 9a8f5a7bd9dacbebbbd2c235cd890c49a81040d7
2007-07-28 20:30:43 -07:00
Nathan Binkert
f0fef8f850 Merge python and x86 changes with cache branch
--HG--
extra : convert_revision : e06a950964286604274fba81dcca362d75847233
2007-07-26 23:15:49 -07:00
Gabe Black
d1e533a1e2 X86: Fix argument register indexing.
Code was assuming that all argument registers followed in order from ArgumentReg0. There is now an ArgumentReg array which is indexed to find the right index. There is a constant, NumArgumentRegs, which can be used to protect against using an invalid ArgumentReg.

--HG--
extra : convert_revision : f448a3ca4d6adc3fc3323562870f70eec05a8a1f
2007-07-26 22:13:14 -07:00
Nathan Binkert
abc76f20cb Major changes to how SimObjects are created and initialized. Almost all
creation and initialization now happens in python.  Parameter objects
are generated and initialized by python.  The .ini file is now solely for
debugging purposes and is not used in construction of the objects in any
way.

--HG--
extra : convert_revision : 7e722873e417cb3d696f2e34c35ff488b7bff4ed
2007-07-23 21:51:38 -07:00
Steve Reinhardt
97f7ee2e50 Fix WriteReq/StoreCondReq setting in O3.
--HG--
extra : convert_revision : b41571535f3d1f78df3cb6e48c16de5c7549d87f
2007-07-23 08:18:51 -07:00
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
3ad761bc8e Make CPU models use new LoadLockedReq/StoreCondReq commands.
--HG--
extra : convert_revision : ab78d9d1d88c3698edfd653d71c8882e1272b781
2007-06-30 20:35:42 -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
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
Korey Sewell
e28cbc98a0 o3cpu build for mips
--HG--
extra : convert_revision : 2c0be7a8c0a54ba5b1b2b69468f788d20abc8452
2007-06-28 05:30:46 -04:00
Gabe Black
49490b334a Merge zizzer.eecs.umich.edu:/bk/newmem
into  ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-o3-micro

src/cpu/o3/fetch_impl.hh:
    hand merge

--HG--
extra : convert_revision : 3f71f3ac2035eec8b6f7bceb6906edb4dd09c045
2007-06-21 20:35:25 +00:00
Gabe Black
df7730b677 Fix compiler errors.
--HG--
extra : convert_revision : 2b10076a24cb36cb748e299011ae691f09c158cd
2007-06-20 19:46:45 -07:00
Nathan Binkert
f65e2710ec Don't do checker stuff if the checker is not defined
--HG--
extra : convert_revision : 1c920b050c21e592a386410e4e9f45354f8e4441
2007-06-20 08:15:06 -07:00
Nathan Binkert
b47737dde7 Make sure all parameters have default values if they're
supposed to and make sure parameters have the right type.
Also make sure that any object that should be an intermediate
type has the right options set.

--HG--
extra : convert_revision : d56910628d9a067699827adbc0a26ab629d11e93
2007-06-20 08:14:11 -07:00
Gabe Black
5c48a05813 Merge zizzer.eecs.umich.edu:/bk/newmem
into  doughnut.hpl.hp.com:/home/gblack/newmem-o3-micro

src/cpu/base_dyn_inst_impl.hh:
src/cpu/o3/fetch_impl.hh:
    Hand merge

--HG--
extra : convert_revision : 0c0692033ac30133672d8dfe1f1a27e9d9e95a3d
2007-06-19 18:54:40 -07:00
Gabe Black
ea70e6d6da Make branches work by repopulating the predecoder every time through. This is probably fine as far as the predecoder goes, but the simple cpu might want to not refetch something it already has. That reintroduces the self modifying code problem though.
--HG--
extra : convert_revision : 802197e65f8dc1ad657c6b346091e03cb563b0c0
2007-06-19 18:17:34 +00:00
Gabe Black
cd8f604cc9 Seperate the pc-pc and the pc of the incoming bytes, and get rid of the "moreBytes" which just takes a MachInst.
src/arch/x86/predecoder.cc:
    Seperate the pc-pc and the pc of the incoming bytes, and get rid of the "moreBytes" which just takes a MachInst. Also make the "opSize" field describe the number of bytes and not the log of the number of bytes.

--HG--
extra : convert_revision : 3a5ec7053ec69c5cba738a475d8b7fd9e6e6ccc0
2007-06-13 20:09:03 +00:00
Nathan Binkert
11f1c8dd3e Use the right type
--HG--
extra : convert_revision : b5ca3153ca786ea4e86bfe83f7760ba9ee41a882
2007-06-09 23:00:13 -07:00
Nathan Binkert
aba2eeaf8f Fix typo so m5.fast will compile
--HG--
extra : convert_revision : 8ceb816c17108d7cb65cb46d8dc2bd2753b0e0f0
2007-06-01 20:41:46 -07:00
Ali Saidi
d8c487c401 don't generate trace data unless tracing is on
--HG--
extra : convert_revision : 3953ace8d481d758d6e0d89183c0a7e7bebcf681
2007-06-01 13:44:24 -04:00
Nathan Binkert
7797a239cc Fix cut-n-pasto to make the path correct
--HG--
extra : convert_revision : a6194cc9c3b2eb83dc8480ed0417b2246f07b4bd
2007-05-30 17:19:20 -07:00
Nathan Binkert
35147170f9 Move SimObject python files alongside the C++ and fix
the SConscript files so that only the objects that are
actually available in a given build are compiled in.
Remove a bunch of files that aren't used anymore.

--HG--
rename : src/python/m5/objects/AlphaTLB.py => src/arch/alpha/AlphaTLB.py
rename : src/python/m5/objects/SparcTLB.py => src/arch/sparc/SparcTLB.py
rename : src/python/m5/objects/BaseCPU.py => src/cpu/BaseCPU.py
rename : src/python/m5/objects/FuncUnit.py => src/cpu/FuncUnit.py
rename : src/python/m5/objects/IntrControl.py => src/cpu/IntrControl.py
rename : src/python/m5/objects/MemTest.py => src/cpu/memtest/MemTest.py
rename : src/python/m5/objects/FUPool.py => src/cpu/o3/FUPool.py
rename : src/python/m5/objects/FuncUnitConfig.py => src/cpu/o3/FuncUnitConfig.py
rename : src/python/m5/objects/O3CPU.py => src/cpu/o3/O3CPU.py
rename : src/python/m5/objects/OzoneCPU.py => src/cpu/ozone/OzoneCPU.py
rename : src/python/m5/objects/SimpleOzoneCPU.py => src/cpu/ozone/SimpleOzoneCPU.py
rename : src/python/m5/objects/BadDevice.py => src/dev/BadDevice.py
rename : src/python/m5/objects/Device.py => src/dev/Device.py
rename : src/python/m5/objects/DiskImage.py => src/dev/DiskImage.py
rename : src/python/m5/objects/Ethernet.py => src/dev/Ethernet.py
rename : src/python/m5/objects/Ide.py => src/dev/Ide.py
rename : src/python/m5/objects/Pci.py => src/dev/Pci.py
rename : src/python/m5/objects/Platform.py => src/dev/Platform.py
rename : src/python/m5/objects/SimConsole.py => src/dev/SimConsole.py
rename : src/python/m5/objects/SimpleDisk.py => src/dev/SimpleDisk.py
rename : src/python/m5/objects/Uart.py => src/dev/Uart.py
rename : src/python/m5/objects/AlphaConsole.py => src/dev/alpha/AlphaConsole.py
rename : src/python/m5/objects/Tsunami.py => src/dev/alpha/Tsunami.py
rename : src/python/m5/objects/T1000.py => src/dev/sparc/T1000.py
rename : src/python/m5/objects/Bridge.py => src/mem/Bridge.py
rename : src/python/m5/objects/Bus.py => src/mem/Bus.py
rename : src/python/m5/objects/MemObject.py => src/mem/MemObject.py
rename : src/python/m5/objects/PhysicalMemory.py => src/mem/PhysicalMemory.py
rename : src/python/m5/objects/BaseCache.py => src/mem/cache/BaseCache.py
rename : src/python/m5/objects/CoherenceProtocol.py => src/mem/cache/coherence/CoherenceProtocol.py
rename : src/python/m5/objects/Repl.py => src/mem/cache/tags/Repl.py
rename : src/python/m5/objects/Process.py => src/sim/Process.py
rename : src/python/m5/objects/Root.py => src/sim/Root.py
rename : src/python/m5/objects/System.py => src/sim/System.py
extra : convert_revision : 173f8764bafa8ef899198438fa5573874e407321
2007-05-27 19:21:17 -07:00
Steve Reinhardt
41241799ae Change getDeviceAddressRanges to use bool for snoop arg.
--HG--
extra : convert_revision : 832e52ba80cbab2f5bb6d5b5977a499d41b4d638
2007-05-21 23:36:09 -07:00
Gabe Black
debf04aef1 Make sure all addresses used in syscalls are truncated to 32 bits. Actually -all- arguements are truncated to 32 bits, but we should be able to get away with it.
--HG--
extra : convert_revision : 3b8766c68a4ab36e2e769fac4812657f3f7e0d1c
2007-05-12 15:11:44 -07:00
Gabe Black
4ad1b58fdd Merge zizzer.eecs.umich.edu:/bk/newmem
into  doughnut.mwconnections.com:/home/gblack/newmem-o3-micro

--HG--
extra : convert_revision : 545b9e98eb1895f4b9e782224fb6615c71ed6323
2007-05-09 20:50:46 -07:00
Kevin Lim
092951e2b1 Remove extra delete that was causing segfault.
--HG--
extra : convert_revision : 8a27ed80308c95988f3bc43d670dc0ac9e946d39
2007-04-26 00:07:42 -04:00
Kevin Lim
15cc194d71 Remove unnecessary check.
--HG--
extra : convert_revision : 8cc2943ebc41e4d430789ee7923dd0dc878be06b
2007-04-26 00:02:37 -04:00
Gabe Black
cca881a531 Merge zizzer.eecs.umich.edu:/n/wexford/x/gblack/m5/newmem-o3-spec
into  ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-o3-micro

--HG--
extra : convert_revision : 757e1d79033e6f8e0aaaf5ecaf14077d416cff8e
2007-04-23 15:34:40 +00:00
Gabe Black
a006aa067a Merge zizzer.eecs.umich.edu:/z/m5/Bitkeeper/newmem
into  zizzer.eecs.umich.edu:/.automount/wexford/x/gblack/m5/newmem-o3-spec

--HG--
extra : convert_revision : 12f10c174f0eca1ddf74b672414fbe78251f686b
2007-04-23 11:34:39 -04:00
Kevin Lim
dbc1edd23d Merge ktlim@zizzer:/bk/newmem
into  zamp.eecs.umich.edu:/z/ktlim2/clean/tmp/head

--HG--
extra : convert_revision : 05f738ab6cf1e8bd2940f4ce20602f1e8ad1af48
2007-04-22 15:31:33 -04:00
Kevin Lim
8c7a6e1654 Use proper cycles for IPC and CPI equations.
src/cpu/o3/cpu.cc:
    Use proper cycles for these equations.

--HG--
extra : convert_revision : cd49410eed978c789d788e80462abed6cb89fbae
2007-04-22 15:11:54 -04:00
Gabe Black
acc62514b1 Make the floating point zero register special handling only apply for ALPHA.
--HG--
extra : convert_revision : 4f393a5471656b29cecbacfcb337992239775915
2007-04-22 17:50:43 +00:00
Ali Saidi
53ba34391f fixes for solaris compile
--HG--
extra : convert_revision : c82a62a61650e3700d237da917c453e5a9676320
2007-04-21 19:11:38 -04:00
Gabe Black
8248af53b1 Make an inner loop which pulls microops out of macroops. These aren't checked for control flow because we can pull out microops until we run out of buffer. This prevents microops from being interpretted as branches because the pc doesn't become npc.
--HG--
extra : convert_revision : 9fff7c6c32900692bbc567ecb75701c9c73da259
2007-04-15 21:52:38 +00:00
Gabe Black
308b2f0ce3 Add extra constructors to Alpha and MIPS
--HG--
extra : convert_revision : 26ea87bfe9e5c27134eb9a15bf9e4629afae6c69
2007-04-15 21:51:05 +00:00
Gabe Black
c3081d9c1c Add support for microcode and pull out the special branch delay slot handling. Branch delay slots need to be squash on a mispredict as well because the nnpc they saw was incorrect.
--HG--
extra : convert_revision : 8b9c603616bcad254417a7a3fa3edfb4c8728719
2007-04-14 17:13:18 +00:00
Gabe Black
c7f1cf1d58 Remove most of the special handling for delay slots since they have to be squashed anyway on a mispredict. This is because the NNPC value they saw when executing was incorrect.
--HG--
extra : convert_revision : b42c4eb28b4fbba66c65cbd0a5033bf886c1532d
2007-04-13 13:59:31 +00:00
Kevin Lim
64b4572c3e Merge ktlim@zizzer:/bk/newmem
into  zamp.eecs.umich.edu:/z/ktlim2/clean/tmp/head

--HG--
extra : convert_revision : a250eed999be9b8acd6f420fdfe8f1b02905beb1
2007-04-09 14:30:49 -04:00
Kevin Lim
0cc343d41d Fix bug when blocking due to no free registers.
--HG--
extra : convert_revision : a1a218d3294515184689041487057495223360b7
2007-04-09 14:29:59 -04:00
Gabe Black
c7bb106886 Take into account that the flattened integer register space is a different size than the architected one. Also fixed some asserts.
--HG--
extra : convert_revision : 26e7863919d1b976ba8cad747af475a6f18e9440
2007-04-08 23:31:11 +00:00
Gabe Black
3bb5fd8c44 Get the "hard" SPARC instructions working in o3. I don't like that the IsStoreConditional flag needs to be set for them because they aren't store conditional instructions, and I should fix the format code which is not handling the opt_flags correctly.
--HG--
extra : convert_revision : cfd32808592832d7b6fbdaace5ae7b17c8a246e9
2007-04-08 01:42:42 +00:00
Gabe Black
a664017c2a Merge zizzer.eecs.umich.edu:/bk/newmem
into  ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-o3-spec

--HG--
extra : convert_revision : 81269f094834f43b4e908321bfce2e031b39d2a4
2007-04-04 20:50:49 +00:00
Kevin Lim
3d2a434e42 Updates for other ISA cpu_builders.
--HG--
extra : convert_revision : b02736c627bb9dcf87463a9133e04369b9f8fae2
2007-04-04 16:50:48 -04:00
Kevin Lim
6ff6621f20 Pass ISA-specific O3 CPU as a constructor parameter instead of using setCPU functions.
src/cpu/o3/alpha/cpu_impl.hh:
    Pass ISA-specific O3 CPU to FullO3CPU as a constructor parameter instead of using setCPU functions.

--HG--
extra : convert_revision : 74f4b1f5fb6f95a56081f367cce7ff44acb5688a
2007-04-04 15:38:59 -04:00
Gabe Black
10fe8b05db Made the "data" field of store queue entries into a character array. It's sized to match an IntReg which was what it used to be, but we might want to make it something architecture independent. All data is now endian converted before entering the store queue entries which simplifies store to load forwarding in "trans endian" simulations, and makes twin memory ops work.
src/cpu/o3/lsq_unit.hh:
src/cpu/o3/lsq_unit_impl.hh:
    fixed twin memory operations.

--HG--
extra : convert_revision : 8fb97f98e285cd22413e06e146fa82392ac2a590
2007-04-03 22:53:26 +00:00
Kevin Lim
98c8cd0b36 Fix a memory leak. Hopefully this fixes the longer running benchmarks.
--HG--
extra : convert_revision : 89eff82642ff181a9b95c77c4d2bf620ca837113
2007-04-03 14:25:24 -04:00
Kevin Lim
ec09e5ad6f Remove/comment out DPRINTFs that were causing a segfault.
The removed ones were unnecessary.  The commented out ones could be useful in the future, should this problem get fixed.  See flyspray task #243.

src/cpu/o3/commit_impl.hh:
src/cpu/o3/decode_impl.hh:
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/iew_impl.hh:
src/cpu/o3/inst_queue_impl.hh:
src/cpu/o3/lsq_impl.hh:
src/cpu/o3/lsq_unit_impl.hh:
src/cpu/o3/rename_impl.hh:
src/cpu/o3/rob_impl.hh:
    Remove/comment out DPRINTFs that were causing a segfault.

--HG--
extra : convert_revision : b5aeda1c6300dfde5e0a3e9b8c4c5f6fa00b9862
2007-04-02 13:55:45 -04:00
Kevin Lim
24cc5227af Fix up SPARC's CPU builder to match changes to Alpha's CPU builder.
--HG--
extra : convert_revision : ec2a739f1da07f0922c772e6998017995115ce80
2007-04-02 13:28:17 -04:00
Kevin Lim
80af6530f6 Update code so that the O3 CPU can handle not initially having anything hooked up to its ports. This fixes the segfault Ali recently found when using sampling.
src/cpu/o3/fetch.hh:
src/cpu/o3/fetch_impl.hh:
    Update code so that the O3 CPU can handle not initially having anything hooked up to its ports.

--HG--
extra : convert_revision : 04bcef44e754735d821509ebd69b0ef9c8ef8e2c
2007-03-29 12:02:57 -04:00
Kevin Lim
5c044cf1f6 Update for new trace data behavior.
--HG--
extra : convert_revision : c3df20c5187614febc4cc9f4d4c68bfecfba1ea7
2007-03-24 23:47:14 -05:00
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
941d3168d0 Updates for commit.
1. Move interrupt handling to a separate function to clean up main commit() function a bit.  Also gate the function call off properly based on whether or not there are outstanding interrupts, and the system is not in PAL mode.
2. Better handling of updating instruction's status bits.  Instructions are not marked "atCommit" until other stages view it (pushed off to IEW/IQ), and they have been properly handled (faults).
3. Don't consider the ROB "empty" for the purpose of other stages until the ROB is empty, all stores have written back, and there was no store commits this cycle.  The last is necessary in case a store committed, in which case it would look like all stores have written back but in actuality have not.

src/cpu/o3/commit.hh:
    Slightly modify how interrupts are handled.  Also include some extra bools to keep track of state properly.
src/cpu/o3/commit_impl.hh:
    Slightly modify how interrupts are handled.  Also include some extra bools to keep track of state.

    General correctness updates, most specifically for when commit broadcasts to other stages that the ROB is empty.

--HG--
extra : convert_revision : 682ec6ccf4ee6ed0c8a030ceaba1c90a3619d102
2007-03-23 13:13:10 -04:00
Kevin Lim
e21878c3f2 Handle status bits a little better, as well as non-speculative instructions.
src/cpu/o3/iew_impl.hh:
    Allow for slightly more flexible handling of non-speculative instructions.  They can be other classes now, such as loads or stores.

    Also be sure to clear the state associated with squashes that are not used.  i.e. if a squash due to a memory ordering violation happens on the same cycle as an older branch squashing, clear the state associated with the memory ordering violation.

    Lastly don't consider uncached loads to officially be "at commit" until IEW receives the signal back from commit about the load.
src/cpu/o3/inst_queue_impl.hh:
    Don't consider non-speculative instructions to be "at commit" until the IQ has received a signal from commit about the instruction.  This prevents non-speculative instructions from being issued too early.
src/cpu/o3/mem_dep_unit_impl.hh:
    Clear instruction's ability to issue if it's replayed.

--HG--
extra : convert_revision : d69dae878a30821222885485f4dee87170d56eb3
2007-03-23 11:40:53 -04:00
Kevin Lim
31e78b0b92 Two fixes:
1. Requests are handled more properly now.  They assume the memory system takes control of the request upon sending out an access.
2. load-load ordering is maintained.

src/cpu/base_dyn_inst.hh:
    Update how requests are handled.  The BaseDynInst should not be able to hold a pointer to the request because the request becomes owned by the memory system once it is sent out.

    Also include some functions to allow certain status bits to be cleared.
src/cpu/base_dyn_inst_impl.hh:
    Update how requests are handled.  The BaseDynInst should not be able to hold a pointer to the request because the request becomes owned by the memory system once it is sent out.
src/cpu/o3/fetch_impl.hh:
    General correctness fixes.  retryPkt is not necessarily always set, so handle it properly.  Also consider the cache unblocked only when recvRetry is called.
src/cpu/o3/lsq_unit.hh:
    Handle requests a little more correctly.  Now that the requests aren't pointed to by the DynInst, be sure to delete the request if it's not being used by the memory system.

    Also be sure to not store-load forward from an uncacheable store.
src/cpu/o3/lsq_unit_impl.hh:
    Check to make sure load-load ordering was maintained.

    Also handle requests a little more correctly.

--HG--
extra : convert_revision : e86bead2886d02443cf77bf7a7a1492845e1690f
2007-03-23 11:33:08 -04:00
Kevin Lim
55a45d3644 A couple of minor fixes.
1. Set CPU ID in all modes for the O3 CPU.
2. Use nextCycle() function to prevent phase drift in O3 CPU.
3. Remove assertion in rename map that is no longer true.

src/cpu/o3/alpha/cpu_builder.cc:
    Allow for CPU id in all modes, not just full system.  Also include a parameter that was left out by accident.
src/cpu/o3/alpha/cpu_impl.hh:
    Set the CPU ID properly.
src/cpu/o3/cpu.cc:
src/cpu/o3/cpu.hh:
    Use nextCycle() function so that the CPU does not get out of phase when starting up from quiesces.
src/cpu/o3/rename_map.cc:
    Remove assertion that is no longer true.
tests/configs/o3-timing.py:
    Set CPU's id to 0.

--HG--
extra : convert_revision : 2b69c19adfce2adcc2d1939e89d702bd6674d5d5
2007-03-23 11:22:43 -04:00
Ali Saidi
c6e1dc61c2 Merge zizzer:/bk/newmem
into  zeep.pool:/z/saidi/work/m5.newmem

--HG--
extra : convert_revision : 6a75fa02391c4c65063c5412a568705bb1dd892b
2007-03-15 15:16:35 -04:00
Gabe Black
32368a2bd6 Merge zizzer.eecs.umich.edu:/bk/newmem
into  ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-x86

src/arch/mips/utility.hh:
src/arch/x86/SConscript:
    Hand merge

--HG--
extra : convert_revision : 0ba457aab52bf6ffc9191fd1fe1006ca7704b5b0
2007-03-15 02:52:51 +00:00
Gabe Black
a2b56088fb Make the predecoder an object with it's own switched header file. Start adding predecoding functionality to x86.
src/arch/SConscript:
src/arch/alpha/utility.hh:
src/arch/mips/utility.hh:
src/arch/sparc/utility.hh:
src/cpu/base.hh:
src/cpu/o3/fetch.hh:
src/cpu/o3/fetch_impl.hh:
src/cpu/simple/atomic.cc:
src/cpu/simple/base.cc:
src/cpu/simple/base.hh:
src/cpu/static_inst.hh:
src/arch/alpha/predecoder.hh:
src/arch/mips/predecoder.hh:
src/arch/sparc/predecoder.hh:
    Make the predecoder an object with it's own switched header file.

--HG--
extra : convert_revision : 77206e29089130e86b97164c30022a062699ba86
2007-03-15 02:47:42 +00:00
Ali Saidi
c6188a2264 fix segfault when peer owner attempts to use functional port
--HG--
extra : convert_revision : 3702b4bd038a59bff823c3b428fdfbaabc9715df
2007-03-13 17:34:52 -04:00
Gabe Black
ce18d900a1 Replaced makeExtMI with predecode.
Removed the getOpcode function from StaticInst which only made sense for Alpha.
Started implementing the x86 predecoder.

--HG--
extra : convert_revision : a13ea257c8943ef25e9bc573024a99abacf4a70d
2007-03-13 16:13:21 +00:00
Nathan Binkert
1aef5c06a3 Rework the way SCons recurses into subdirectories, making it
automatic.  The point is that now a subdirectory can be added
to the build process just by creating a SConscript file in it.
The process has two passes.  On the first pass, all subdirs
of the root of the tree are searched for SConsopts files.
These files contain any command line options that ought to be
added for a particular subdirectory.  On the second pass,
all subdirs of the src directory are searched for SConscript
files.  These files describe how to build any given subdirectory.
I have added a Source() function.  Any file (relative to the
directory in which the SConscript resides) passed to that
function is added to the build.  Clean up everything to take
advantage of Source().
function is added to the list of files to be built.

--HG--
extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30
2007-03-10 23:00:54 -08:00
Kevin Lim
ad44834907 Two fixes:
1. Make sure connectMemPorts() only gets called when the CPU's peer gets changed.  This is done by making setPeer() virtual, and overriding it in the CPU's ports.  When it gets called on a CPU's port (dcache specifically), it calls the normal setPeer() function, and also connectMemPorts().
2. Consolidate redundant code that handles switching in a CPU.

src/cpu/base.cc:
    Move common code of switching over peers to base CPU.
src/cpu/base.hh:
    Move common code of switching over peers to BaseCPU.
src/cpu/o3/cpu.cc:
    Add in function that updates thread context's ports.
    Also use updated function to takeOverFrom() in BaseCPU.  This gets rid of some repeated code.
src/cpu/o3/cpu.hh:
    Include function to update thread context's memory ports.
src/cpu/o3/lsq.hh:
    Add function to dcache port that will update the memory ports upon getting a new peer.
    Also include a function that will tell the CPU to update those memory ports.
src/cpu/o3/lsq_impl.hh:
    Add function that will update the memory ports upon getting a new peer.
src/cpu/simple/atomic.cc:
src/cpu/simple/timing.cc:
    Add function that will update thread context's memory ports upon getting a new peer.
    Also use the new BaseCPU's take over from function.
src/cpu/simple/atomic.hh:
    Add in function (and dcache port) that will allow the dcache to update memory ports when it gets assigned a new peer.
src/cpu/simple/timing.hh:
    Add function that will update thread context's memory ports upon getting a new peer.
src/mem/port.hh:
    Make setPeer virtual so that other classes can override it.

--HG--
extra : convert_revision : 2050f1241dd2e83875d281cfc5ad5c6c8705fdaf
2007-03-09 10:06:09 -05:00
Ali Saidi
87fb0eb8de I missed a couple of WithEffects, this should do it
--HG--
extra : convert_revision : 19fce78a19b27b7ccb5e3653a64b46e6d5292915
2007-03-07 21:51:44 -05:00
Ali Saidi
689cab36c9 *MiscReg->*MiscRegNoEffect, *MiscRegWithEffect->*MiscReg
--HG--
extra : convert_revision : f799b65f1b2a6bf43605e6870b0f39b473dc492b
2007-03-07 15:04:31 -05:00
Nathan Binkert
d55b25cde6 Move all of the parameters of the Root SimObject so they are
directly configured by python.  Move stuff from root.(cc|hh) to
core.(cc|hh) since it really belogs there now.
In the process, simplify how ticks are used in the python code.

--HG--
extra : convert_revision : cf82ee1ea20f9343924f30bacc2a38d4edee8df3
2007-03-06 11:13:43 -08:00
Gabe Black
c7ab9f5bb2 Added an x86 dyninst
--HG--
extra : convert_revision : 2317e9bb0bcf8010ab5d02019f7a14eeb7b1459c
2007-03-05 14:55:45 +00:00
Nathan Binkert
184decd196 Clean up tracing stuff more, get rid of the trace log since
its not all that useful. Fix a few bugs with python/C++
integration.

--HG--
extra : convert_revision : a706512f7dc8b0c88f1ff96fe35ab8fbf9548b78
2007-02-10 15:14:50 -08:00