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2009-12-31MIPS: Fix decoding of the rdhwr instruction.Gabe Black
2009-12-31MIPS: Create an artificial control register to hold the thread pointer.Gabe Black
In Linux, the set_thread_area system call stores the address of the thread local storage area into a field of the current thread_info structure. Later, to access that value, the program uses the rdhwr instruction to read a "hardware register" with index 29. The 64 bit MIPS manual, volume II, says that index 29 is reserved for a future ABI extension and should cause a "Reserved Instruction Exception". In Linux (and potentially other ISAs) that exception is trapped and emulated to return the value stored by set_thread_area as if that were actually stored by a physical register. The tp_value address (as named in the Linux kernel) is ironically stored as a control register so that it goes with a particular ThreadContext. Syscall emulation will use that to emulate storing to the OS's thread info structure, and rdhwr will emulate faulting and returning that value from software by returning the value itself, as if it was in hardware. In other words, we fake faking the register in SE mode. In an FS mode implementation it should work as specified in the manual.
2009-11-10Mem: Eliminate the NO_FAULT request flag.Gabe Black
2009-07-22MIPS: Small fix I forgot to qrefresh into my last change.Gabe Black
2009-07-22MIPS: Style/formatting sweep of the decoder itself.Gabe Black
2009-07-21MIPS: Format the register index constants like the other ISAs.Gabe Black
Also a few more style fixes.
2009-07-21MIPS: Get MIPS_FS to compile, more style fixes.Gabe Black
Some breakage was from my BitUnion change, some was much older.
2009-07-20MIPS: Use BitUnions instead of bits() functions and constants.Gabe Black
Also fix style issues in regions around these changes.
2009-07-10ISAs: Get rid of the IControl operand type.Gabe Black
A separate operand type is not necessary to use two bitfields to generate the index.
2009-07-09MIPS: Fold the MiscRegFile all the way into the ISA object.Gabe Black
2009-07-08Registers: Get rid of the float register width parameter.Gabe Black
2009-05-13inorder-mips: Remove eaComp & memAcc; use 'visible' eaCompKorey Sewell
Inorder expects eaComp to be visible through StaticInst object. This mirrors a similar change to ALPHA... Needs to be done for SPARC and whatever other ISAs want to use InOrderCPU
2009-04-19Memory: Rename LOCKED for load locked store conditional to LLSC.Gabe Black
2009-04-18mips-syscall: mark with correct flag. \nMIPS was using wrong serialization ↵Korey Sewell
flag on syscall instructions allowing O3 to handle SE mode syscalls incorrectly and speculate on instructions after a syscall
2009-04-18o3-delay-slot-bpred: fix decode stage handling of uncdtl. branches.\n decode ↵Korey Sewell
stage was not setting the predicted PC correctly or passing that information back to fetch correctly
2008-11-14Fix a bunch of bugs I introduced when I changed the flags stuff for packets.Nathan Binkert
I did some of the flags and assertions wrong. Thanks to Brad Beckmann for pointing this out. I should have run the opt regressions instead of the fast. I also screwed up some of the logical functions in the Flags class.
2008-11-10mem: update stuff for changes to Packet and RequestNathan Binkert
2008-11-04get rid of all instances of readTid() and getThreadNum(). Unify and eliminateLisa Hsu
redundancies with threadId() as their replacement.
2008-10-06fix shadow set bugs in MIPS code that caused out of bounds access...Korey Sewell
panic rdpgpr/wrpgpr instructions until a better impl. of MIPS shadow sets is available.
2008-09-27gcc: Add extra parens to quell warnings.Nathan Binkert
Even though we're not incorrect about operator precedence, let's add some parens in some particularly confusing places to placate GCC 4.3 so that we don't have to turn the warning off. Agreed that this is a bit of a pain for those users who get the order of operations correct, but it is likely to prevent bugs in certain cases.
2007-11-17add back in clobbered MIPS fix for g++ 4.2Korey Sewell
--HG-- extra : convert_revision : 80ad1cc32c6e59925526abd274132e4f9e35f0c1
2007-11-16go back and fix up MIPS copyright headersKorey Sewell
--HG-- extra : convert_revision : 886e762e13b7a05d6d8a14bde6c2a3567c32a4d1
2007-11-15fix MIPS headersKorey Sewell
--HG-- extra : convert_revision : 2870a146a1be0e8c80878090f39c0eaa15d2eb13
2007-11-15Get MIPS simple regression working. Take out unecessary functions ↵Korey Sewell
"setShadowSet", "CacheOp" --HG-- extra : convert_revision : a9ae8a7e62c27c2db16fd3cfa7a7f0bf5f0bf8ea
2007-11-14Get MIPS_SE actually working again by actually by fixing TLB stuff and ↵Korey Sewell
running hello world --HG-- extra : convert_revision : 0944e7661934baddca1f1a895af0b75be2d96b10
2007-11-13Add in files from merge-bare-iron, get them compiling in FS and SE modeKorey Sewell
--HG-- extra : convert_revision : d4e19afda897bc3797868b40469ce2ec7ec7d251
2007-10-31String constant const-ness changes to placate g++ 4.2.Steve Reinhardt
Also some bug fixes in MIPS ISA uncovered by g++ warnings (Python string compares don't work in C++!). --HG-- extra : convert_revision : b347cc0108f23890e9b73b3ee96059f0cea96cf6
2007-08-01MIPS: Cleaned up includes to break loops, and got rid of isa_traits.ccGabe Black
Loops of header files including each other was causing compilation to fail. To fix it, a bunch of unnecessary includes were removed, and the code in isa_traits.cc which brought a bunch of include chains together was broken up and put in proximity to the header files that delcared it. --HG-- extra : convert_revision : 66ef7762024b72bb91147a5589a0779e279521e0
2007-07-31Add a flag to indicate an instruction triggers a syscall in SE mode.Gabe Black
--HG-- extra : convert_revision : 1d0b3afdd8254f5b2fb4bbff1fa4a0536f78bb06
2007-06-29fix store instructions, pass fast/quick Atomic/TimingSimpleCPU regressions...Korey Sewell
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
2007-06-28o3cpu build for mipsKorey Sewell
--HG-- extra : convert_revision : 2c0be7a8c0a54ba5b1b2b69468f788d20abc8452
2007-06-22mips import pt. 1Korey Sewell
src/arch/mips/SConscript: "mips import pt.1". --HG-- extra : convert_revision : 2e393341938bebf32fb638a209262d074fad4cc1
2007-03-07*MiscReg->*MiscRegNoEffect, *MiscRegWithEffect->*MiscRegAli Saidi
--HG-- extra : convert_revision : f799b65f1b2a6bf43605e6870b0f39b473dc492b
2007-02-13Update MIPS ISA description to work with new write result interfaceSteve Reinhardt
for store conditional. --HG-- extra : convert_revision : 73efd2ca17994e0e19c08746441874a2ac8183af
2007-02-13fix compiling problemsAli Saidi
--HG-- extra : convert_revision : 9ecfd5a0a151c03503e42faf98240da12fd719b1
2007-01-25Fixed a warning that was breaking compilation.Gabe Black
--HG-- extra : convert_revision : 007e83ab452849ce527fe252148e7a1dc423c850
2006-12-17Minor cleanup of new snippet/subst code.Steve Reinhardt
--HG-- extra : convert_revision : d81e0d1356f3433e8467e407d66d4afb95614748
2006-12-17Convert Alpha (and finish converting MIPS) to newSteve Reinhardt
InstObjParam interface. src/arch/alpha/isa/branch.isa: src/arch/alpha/isa/fp.isa: src/arch/alpha/isa/int.isa: src/arch/alpha/isa/main.isa: src/arch/alpha/isa/mem.isa: src/arch/alpha/isa/pal.isa: src/arch/mips/isa/formats/mem.isa: src/arch/mips/isa/formats/util.isa: Get rid of CodeBlock calls to adapt to new InstObjParam interface. src/arch/isa_parser.py: Check template code for operands (in addition to snippets). src/cpu/o3/alpha/dyn_inst.hh: Add (read|write)MiscRegOperand calls to Alpha DynInst. --HG-- extra : convert_revision : 332caf1bee19b014cb62c1ed9e793e793334c8ee
2006-12-17Started removing "CodeBlock" objects from the mips isa description.Gabe Black
--HG-- extra : convert_revision : 2e174ecfce8c86732e1addfc23e961429b86a570
2006-12-12Rename the StaticInst-based (read|set)(Int|Float)Reg methods to ↵Steve Reinhardt
(read|set)(Int|Float)RegOperand to distinguish from non-StaticInst version. --HG-- extra : convert_revision : b33ce0ebe2fee86cc791c00a35d8c6e395e1380c
2006-10-20Use PacketPtr everywhereNathan Binkert
--HG-- extra : convert_revision : d9eb83ab77ffd2d725961f295b1733137e187711
2006-10-19refactor code for the packet, get rid of packet_impl.hhNathan Binkert
and call it packet_access.hh and fix the #includes so things compile right. --HG-- extra : convert_revision : d3626c9715b9f7e51bb3ab8d97e971fad4e0b724
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
2006-08-15Cleaned up include files and got rid of many using directives in header files.Gabe Black
--HG-- extra : convert_revision : 6b11e039cbc061dab75195fa1aebe6ca2cdc6f91
2006-07-26MIPS ISA runs 'hello world' in O3CPU ...Korey Sewell
src/arch/mips/isa/base.isa: special case syscall disasembly... maybe give own instruction class? src/arch/mips/isa/decoder.isa: add 'IsSerializeAfter' flag for syscall src/cpu/o3/commit.hh: Add skidBuffer to commit src/cpu/o3/commit_impl.hh: Use skidbuffer in MIPS ISA src/cpu/o3/fetch_impl.hh: Print name out when there is a fault src/cpu/o3/mips/cpu_impl.hh: change comment --HG-- extra : convert_revision : d032549e07102bdd50aa09f044fce8de6f0239b5
2006-07-23This changeset gets the MIPS ISA pretty much working in the O3CPU. It ↵Korey Sewell
builds, runs, and gets very very close to completing the hello world succesfully but there are some minor quirks to iron out. Who would've known a DELAY SLOT introduces that much complexity?! arrgh! Anyways, a lot of this stuff had to do with my project at MIPS and me needing to know how I was going to get this working for the MIPS ISA. So I figured I would try to touch it up and throw it in here (I hate to introduce non-completely working components... ) src/arch/alpha/isa/mem.isa: spacing src/arch/mips/faults.cc: src/arch/mips/faults.hh: Gabe really authored this src/arch/mips/isa/decoder.isa: add StoreConditional Flag to instruction src/arch/mips/isa/formats/basic.isa: Steven really did this file src/arch/mips/isa/formats/branch.isa: fix bug for uncond/cond control src/arch/mips/isa/formats/mem.isa: Adjust O3CPU memory access to use new memory model interface. src/arch/mips/isa/formats/util.isa: update LoadStoreBase template src/arch/mips/isa_traits.cc: update SERIALIZE partially src/arch/mips/process.cc: src/arch/mips/process.hh: no need for this for NOW. ASID/Virtual addressing handles it src/arch/mips/regfile/misc_regfile.hh: add in clear() function and comments for future usage of special misc. regs src/cpu/base_dyn_inst.hh: add in nextNPC variable and supporting functions. add isCondDelaySlot function Update predTaken and mispredicted functions src/cpu/base_dyn_inst_impl.hh: init nextNPC src/cpu/o3/SConscript: add MIPS files to compile src/cpu/o3/alpha/thread_context.hh: no need for my name on this file src/cpu/o3/bpred_unit_impl.hh: Update RAS appropriately for MIPS src/cpu/o3/comm.hh: add some extra communication variables to aid in handling the delay slots src/cpu/o3/commit.hh: minor name fix for nextNPC functions. 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/rename_impl.hh: Fix necessary variables and functions for squashes with delay slots src/cpu/o3/cpu.cc: Update function interface ... adjust removeInstsNotInROB function to recognize delay slots insts src/cpu/o3/cpu.hh: update removeInstsNotInROB src/cpu/o3/decode.hh: declare necessary variables for handling delay slot src/cpu/o3/dyn_inst.hh: Add in MipsDynInst src/cpu/o3/fetch.hh: src/cpu/o3/iew.hh: src/cpu/o3/rename.hh: declare necessary variables and adjust functions for handling delay slot src/cpu/o3/inst_queue.hh: src/cpu/simple/base.cc: no need for my name here src/cpu/o3/isa_specific.hh: add in MIPS files src/cpu/o3/scoreboard.hh: dont include alpha specific isa traits! src/cpu/o3/thread_context.hh: no need for my name here, i just rearranged where the file goes src/cpu/static_inst.hh: add isCondDelaySlot function src/cpu/o3/mips/cpu.cc: src/cpu/o3/mips/cpu.hh: src/cpu/o3/mips/cpu_builder.cc: src/cpu/o3/mips/cpu_impl.hh: src/cpu/o3/mips/dyn_inst.cc: src/cpu/o3/mips/dyn_inst.hh: src/cpu/o3/mips/dyn_inst_impl.hh: src/cpu/o3/mips/impl.hh: src/cpu/o3/mips/params.hh: src/cpu/o3/mips/thread_context.cc: src/cpu/o3/mips/thread_context.hh: MIPS file for O3CPU...mirrors ALPHA definition --HG-- extra : convert_revision : 9bb199b4085903e49ffd5a4c8ac44d11460d988c
2006-07-06more steps toward O3 SMTKorey Sewell
src/arch/mips/isa/formats/fp.isa: Adjust for newmem src/cpu/cpu_models.py: Use O3DynInst instead of convoluted way src/cpu/o3/alpha/impl.hh: take out O3DynInst typedef here ... src/cpu/o3/cpu.cc: open up the SMT functions in the O3CPU src/cpu/static_inst.hh: Add O3DynInst src/cpu/o3/dyn_inst.hh: Use to get ISA-specific O3DynInst --HG-- extra : convert_revision : 3713187ead93e336e80889e23a1f1d2f36d664fe
2006-06-15Mips Code Cleanup:Korey Sewell
Fix some author stuff and copyright dates Take out full system code src/arch/mips/isa/base.isa: src/arch/mips/isa/bitfields.isa: copyright info src/arch/mips/isa/decoder.isa: src/arch/mips/isa/formats/basic.isa: src/arch/mips/isa/formats/branch.isa: src/arch/mips/isa/formats/control.isa: src/arch/mips/isa/formats/fp.isa: src/arch/mips/isa/formats/int.isa: src/arch/mips/isa/formats/mem.isa: src/arch/mips/isa/formats/noop.isa: src/arch/mips/isa/formats/tlbop.isa: src/arch/mips/isa/formats/trap.isa: src/arch/mips/isa/formats/unimp.isa: src/arch/mips/isa/formats/unknown.isa: src/arch/mips/isa/formats/util.isa: src/arch/mips/isa/includes.isa: src/arch/mips/isa/main.isa: src/arch/mips/isa/operands.isa: src/arch/mips/process.cc: src/arch/mips/regfile/misc_regfile.hh: src/arch/mips/stacktrace.hh: copyright 2006 src/arch/mips/isa_traits.cc: src/arch/mips/isa_traits.hh: copyright 2006 take out full system src/arch/mips/regfile/float_regfile.hh: src/arch/mips/regfile/regfile.hh: copyright 2006 use FloatRegVal src/arch/mips/regfile/int_regfile.hh: copyright 2006 move HI/LO to types.hh src/arch/mips/types.hh: copyright 2006 typedef FloatRegVal --HG-- extra : convert_revision : 1d0d72cd655a4e28622745a6c6b06349da533a1d
2006-06-14add cycle to exit messageKorey Sewell
src/arch/mips/isa/formats/trap.isa: Take out fix that tried to fix trap instruction disassembly. It forces bad compile .. configs/test/test.py: add 'cycle' to exit message --HG-- extra : convert_revision : 568877797fd2806416b4cbb388cc3f7eb2492627
2006-06-14-luxc1 fixKorey Sewell
-noop templates -trap disassembly src/arch/mips/isa/decoder.isa: luxc1 uses doubleword, not single src/arch/mips/isa/formats/int.isa: use new nop decode template src/arch/mips/isa/formats/mem.isa: Noop templates src/arch/mips/isa/formats/noop.isa: redo noop templates src/arch/mips/isa/formats/trap.isa: fix for trap disassembly --HG-- extra : convert_revision : 56f13e88abdcbd03ab828cff5d775c993157ae96
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