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2014-05-09arch: teach ISA parser how to split code across filesCurtis Dunham
This patch encompasses several interrelated and interdependent changes to the ISA generation step. The end goal is to reduce the size of the generated compilation units for instruction execution and decoding so that batch compilation can proceed with all CPUs active without exhausting physical memory. The ISA parser (src/arch/isa_parser.py) has been improved so that it can accept 'split [output_type];' directives at the top level of the grammar and 'split(output_type)' python calls within 'exec {{ ... }}' blocks. This has the effect of "splitting" the files into smaller compilation units. I use air-quotes around "splitting" because the files themselves are not split, but preprocessing directives are inserted to have the same effect. Architecturally, the ISA parser has had some changes in how it works. In general, it emits code sooner. It doesn't generate per-CPU files, and instead defers to the C preprocessor to create the duplicate copies for each CPU type. Likewise there are more files emitted and the C preprocessor does more substitution that used to be done by the ISA parser. Finally, the build system (SCons) needs to be able to cope with a dynamic list of source files coming out of the ISA parser. The changes to the SCons{cript,truct} files support this. In broad strokes, the targets requested on the command line are hidden from SCons until all the build dependencies are determined, otherwise it would try, realize it can't reach the goal, and terminate in failure. Since build steps (i.e. running the ISA parser) must be taken to determine the file list, several new build stages have been inserted at the very start of the build. First, the build dependencies from the ISA parser will be emitted to arch/$ISA/generated/inc.d, which is then read by a new SCons builder to finalize the dependencies. (Once inc.d exists, the ISA parser will not need to be run to complete this step.) Once the dependencies are known, the 'Environments' are made by the makeEnv() function. This function used to be called before the build began but now happens during the build. It is easy to see that this step is quite slow; this is a known issue and it's important to realize that it was already slow, but there was no obvious cause to attribute it to since nothing was displayed to the terminal. Since new steps that used to be performed serially are now in a potentially-parallel build phase, the pathname handling in the SCons scripts has been tightened up to deal with chdir() race conditions. In general, pathnames are computed earlier and more likely to be stored, passed around, and processed as absolute paths rather than relative paths. In the end, some of these issues had to be fixed by inserting serializing dependencies in the build. Minor note: For the null ISA, we just provide a dummy inc.d so SCons is never compelled to try to generate it. While it seems slightly wrong to have anything in src/arch/*/generated (i.e. a non-generated 'generated' file), it's by far the simplest solution.
2014-05-09arch: remove inline specifiers on all inst constrs, all ISAsCurtis Dunham
With (upcoming) separate compilation, they are useless. Only link-time optimization could re-inline them, but ideally feedback-directed optimization would choose to do so only for profitable (i.e. common) instructions.
2012-02-11SPARC: Make PSTATE and HPSTATE a BitUnion.Gabe Black
This gets rid of cryptic bits of code with lots of bit manipulation, and makes some comments redundant.
2012-01-07Merge with main repository.Gabe Black
2011-10-31SE/FS: Remove the last uses of FULL_SYSTEM from SPARC.Gabe Black
2011-10-31GCC: Get everything working with gcc 4.6.1.Gabe Black
And by "everything" I mean all the quick regressions.
2011-07-02ISA: Use readBytes/writeBytes for all instruction level memory operations.Gabe Black
2011-06-09sparc: compilation fixes for inorderKorey Sewell
Add a few constants and functions that the InOrder model wants for SPARC. * * * sparc: add eaComp function InOrder separates the address generation from the actual access so give Sparc that functionality * * * sparc: add control flags for branches branch predictors and other cpu model functions need to know specific information about branches, so add the necessary flags here
2010-11-11SPARC: Clean up some historical style issues.Gabe Black
2010-10-22ISA: Simplify various implementations of completeAcc.Gabe Black
2009-02-25SPARC: Adjust a few instructions to not write registers in initiateAcc.Gabe Black
2008-11-10mem: update stuff for changes to Packet and RequestNathan Binkert
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.
2007-09-25SPARC: Remove parameter that was only ever set to one value.Gabe Black
--HG-- extra : convert_revision : 3c22e576d95bdc7566bbce9b92cf2a6ff153a66f
2007-06-19Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
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
2007-06-12Make microOp vs microop and macroOp vs macroop capitilization consistent.Gabe Black
src/arch/x86/isa/macroop.isa: Make microOp vs microop and macroOp vs macroop capitilization consistent. Also fill out the emulation environment handling a little more, and use an object to pass around output code. src/arch/x86/isa/microops/base.isa: Make microOp vs microop and macroOp vs macroop capitilization consistent. Also adjust python to C++ bool translation. --HG-- extra : convert_revision : 6f4bacfa334c42732c845f9a7f211cbefc73f96f
2007-05-09Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into doughnut.mwconnections.com:/home/gblack/newmem-o3-micro --HG-- extra : convert_revision : 545b9e98eb1895f4b9e782224fb6615c71ed6323
2007-05-08Add a hack to truncate addresses to 32 bits in SE. Paging should be changed ↵Gabe Black
to use the architecture's TLB, at which point this can be removed. --HG-- extra : convert_revision : 54f3c18e5aead727d0ac244ed00fd97d3ca8ad75
2007-04-27gcc 4.1 claims that mem_data might be used uninitialized,Nathan Binkert
though I don't believe that's true. Placate it anyway. --HG-- extra : convert_revision : dcd9427af14f0e7a33510054bee4ecbe73e050be
2007-04-11Create a filter and a union to translate the SPARC instruction ↵Gabe Black
implementations from using doubles to using concatenated singles. --HG-- extra : convert_revision : 609ba35bbb13cbd1998e93957cb051461442d1f9
2007-04-08Get the "hard" SPARC instructions working in o3. I don't like that the ↵Gabe Black
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
2007-03-11Make sttw and sttwa use the twin memory operations.Gabe Black
--HG-- extra : convert_revision : 368d1c57a46fd5ca15461cb5ee8e05fd1e080daa
2007-02-12rename store conditional stuff as extra data so it can be used for ↵Ali Saidi
conditional swaps as well Add support for a twin 64 bit int load Add Memory barrier and write barrier flags as appropriate Make atomic memory ops atomic src/arch/alpha/isa/mem.isa: src/arch/alpha/locked_mem.hh: src/cpu/base_dyn_inst.hh: src/mem/cache/cache_blk.hh: src/mem/cache/cache_impl.hh: rename store conditional stuff as extra data so it can be used for conditional swaps as well src/arch/alpha/types.hh: src/arch/mips/types.hh: src/arch/sparc/types.hh: add a largest read data type for statically allocating read buffers in atomic simple cpu src/arch/isa_parser.py: Add support for a twin 64 bit int load src/arch/sparc/isa/decoder.isa: Make atomic memory ops atomic Add Memory barrier and write barrier flags as appropriate src/arch/sparc/isa/formats/mem/basicmem.isa: add post access code block and define a twinload format for twin loads src/arch/sparc/isa/formats/mem/blockmem.isa: remove old microcoded twin load coad src/arch/sparc/isa/formats/mem/mem.isa: swap.isa replaces the code in loadstore.isa src/arch/sparc/isa/formats/mem/util.isa: add a post access code block src/arch/sparc/isa/includes.isa: need bigint.hh for Twin64_t src/arch/sparc/isa/operands.isa: add a twin 64 int type src/cpu/simple/atomic.cc: src/cpu/simple/atomic.hh: src/cpu/simple/base.hh: src/cpu/simple/timing.cc: add support for twinloads add support for swap and conditional swap instructions rename store conditional stuff as extra data so it can be used for conditional swaps as well src/mem/packet.cc: src/mem/packet.hh: Add support for atomic swap memory commands src/mem/packet_access.hh: Add endian conversion function for Twin64_t type src/mem/physical.cc: src/mem/physical.hh: src/mem/request.hh: Add support for atomic swap memory commands Rename sc code to extradata --HG-- extra : convert_revision : 69d908512fb34a4e28b29a6e58b807fb1a6b1656
2007-01-27Merge zizzer:/bk/newmemGabe Black
into zower.eecs.umich.edu:/eecshome/m5/newmem src/arch/sparc/isa/formats/mem/util.isa: src/arch/sparc/isa_traits.hh: src/arch/sparc/system.cc: Hand Merge --HG-- extra : convert_revision : d5e0c97caebb616493e2f642e915969d7028109c
2007-01-26Make Sparc traceflag even more chattyAli Saidi
some fixes to fp instructions to use the single precision registers if this is an fp op emit fp check code add fpregs to m5legion struct src/arch/sparc/floatregfile.cc: Make Sparc traceflag even more chatty src/arch/sparc/isa/base.isa: add code to check if the fpu is enabled src/arch/sparc/isa/decoder.isa: some fixes to fp instructions to use the single precision registers fix smul again fix subc/subcc/subccc condition code setting src/arch/sparc/isa/formats/basic.isa: src/arch/sparc/isa/formats/mem/util.isa: if this is an fp op emit fp check code src/cpu/exetrace.cc: check fp regs as well as int regs src/cpu/m5legion_interface.h: add fpregs to m5legion struct --HG-- extra : convert_revision : e7d26d10fb8ce88f96e3a51f84b48c3b3ad2f232
2007-01-25fix smul and sdiv to sign extend, and handle overflow/underflow corretlyAli Saidi
Only allow writing/reading of 32 bits of Y Only allow writing/reading 32 bits of pc when pstate.am Put any loaded data on the first half of a micro-op in uReg0 so it can't overwrite the register we are using for address calculation only erase a entry from the lookup table if it's valid Put in a temporary check to make sure that lookup table and tlb array stay in sync if we are interrupted in the middle of a mico-op, reset the micropc/nexpc so we start on the first part of it when we come back src/arch/sparc/isa/decoder.isa: fix smul and sdiv to sign extend, and handle overflow/underflow corretly Only allow writing/reading of 32 bits of Y Only allow writing/reading 32 bits of pc when pstate.am Put any loaded data on the first half of a micro-op in uReg0 so it can't overwrite the register we are using for address calculation src/arch/sparc/isa/formats/mem/blockmem.isa: Put any loaded data on the first half of a micro-op in uReg0 so it can't overwrite the register we are using for address calculation src/arch/sparc/isa/includes.isa: Use limits for 32bit underflow/overflow detection src/arch/sparc/tlb.cc: only erase a entry from the lookup table if it's valid Put in a temporary check to make sure that lookup table and tlb array stay in sync src/arch/sparc/tlb_map.hh: add a print function to dump the tlb lookup table src/cpu/simple/base.cc: if we are interrupted in the middle of a mico-op, reset the micropc/nexpc so we start on the first part of it when we come back --HG-- extra : convert_revision : 50a23837fd888393a5c2aa35cbd1abeebb7f55d4
2007-01-22Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into ewok.(none):/home/gblack/m5/newmemo3 src/sim/byteswap.hh: Hand Merge --HG-- extra : convert_revision : 640d33ad0c416934e8a5107768e7f1dce6709ca8
2007-01-16Modify ISA and staticInst to support a IsFirstMicroOp flagAli Saidi
Increment instruction count on first micro-op instead of last src/arch/sparc/isa/decoder.isa: Implement a twin load for ASI_LDTX_P(0xe2) src/arch/sparc/isa/formats/mem/blockmem.isa: set the new flag IsFirstMicroOp when needed src/cpu/simple/atomic.cc: Increment instruction count on first micro-op instead of last (because if we take a fault on a micro coded instruction it should be counted twice acording to legion) src/cpu/static_inst.hh: Add IsFirstMicroop flag to static insts --HG-- extra : convert_revision : 02bea93d38c03bbafe4570665eb4c01c11caa2fc
2007-01-03Merge zizzer:/bk/newmemGabe Black
into zower.eecs.umich.edu:/eecshome/m5/newmem --HG-- extra : convert_revision : f4a05accb8fa24d425dd818b1b7f268378180e99
2006-12-19fix twinx loads a little bitAli Saidi
bugfixes and demap implementation in tlb ignore some more differencs for one cycle src/arch/sparc/isa/formats/mem/blockmem.isa: twinx has 2 micro-ops src/arch/sparc/isa/formats/mem/util.isa: fix the fault check for twinx src/arch/sparc/tlb.cc: tlb bugfixes and write demapping code src/cpu/exetrace.cc: don't halt on a couple more instruction (ldx, stx) when things differ beacuse of the way tlb faults are handled in legion. --HG-- extra : convert_revision : 1e156dead6ebd58b257213625ed63c3793ef4b71
2006-12-18Fixing the extended twin format to go with the new isa parser interface.Gabe Black
--HG-- extra : convert_revision : f41183cfa011b21e7ab8cbcdef0ac1d464692362
2006-12-18Merge zizzer.eecs.umich.edu:/.automount/zower/eecshome/m5/newmemGabe Black
into zizzer.eecs.umich.edu:/z/m5/Bitkeeper/sparco3 --HG-- extra : convert_revision : f17800685609d8353ec14676f45fbb123fc4e6c3
2006-12-17Minor cleanup of new snippet/subst code.Steve Reinhardt
--HG-- extra : convert_revision : d81e0d1356f3433e8467e407d66d4afb95614748
2006-12-17Merge zizzer:/bk/newmemGabe Black
into zower.eecs.umich.edu:/eecshome/m5/newmem src/arch/sparc/isa/formats/mem/blockmem.isa: src/arch/sparc/isa/operands.isa: Hand Merge --HG-- extra : convert_revision : 4c54544e5c7a61f055ea9b00ccf5f8510df0e6c2
2006-12-17Added in the extended twin load formatGabe Black
src/arch/sparc/isa/decoder.isa: Added the extended twin load instructions src/arch/sparc/isa/formats/mem/blockmem.isa: Added stuff to implement the extended twin loads. This created alot of duplication which I'll deal with later. --HG-- extra : convert_revision : 5d8bdaacbfe83d21d3a396ce30ace90aeefc54d8
2006-12-17Compilation fix after messy merge.Gabe Black
--HG-- extra : convert_revision : bf650dfe401377ce1b4c952aa8bfe3708c865472
2006-12-16Support for twin loads.Gabe Black
src/arch/sparc/isa/decoder.isa: Changed the names of the twin loads to match the 2005 spec. They still use the old format though. src/arch/sparc/isa/formats/mem/blockmem.isa: Added code to generate twin loads src/arch/sparc/isa/formats/mem/util.isa: Added an alignment check for twin loads src/arch/sparc/isa/operands.isa: Comment explaining twin load operands. --HG-- extra : convert_revision : ad42821a97dcda17744875b1e5dc00a9642e59b7
2006-12-16Merge zizzer:/bk/newmemGabe Black
into zower.eecs.umich.edu:/eecshome/m5/newmem src/arch/isa_parser.py: src/arch/sparc/isa/formats/mem/basicmem.isa: src/arch/sparc/isa/formats/mem/blockmem.isa: src/arch/sparc/isa/formats/mem/util.isa: src/arch/sparc/miscregfile.cc: src/arch/sparc/miscregfile.hh: src/cpu/o3/iew_impl.hh: Hand Merge --HG-- extra : convert_revision : ae1b25cde85ab8ec275a09d554acd372887d4d47
2006-12-16Changes to the isa_parser and affected files to fix an indexing problem with ↵Gabe Black
split execute instructions and miscregs aliasing with integer registers. src/arch/isa_parser.py: Rearranged things so that classes with more than one execute function treat operands properly. 1. Eliminated the CodeBlock class 2. Created a SubOperandList 3. Redefined how InstObjParams is constructed To define an InstObjParam, you can either pass in a single code literal which will be named "code", or you can pass in a dictionary of code snippets which will be substituted into the Templates. In order to get this to work, there is a new restriction that each template has only one function in it. These changes should only affect memory instructions which have regular and split execute functions. Also changed the MiscRegs so that they use the instrunctions srcReg and destReg arrays. src/arch/sparc/isa/formats/basic.isa: src/arch/sparc/isa/formats/branch.isa: src/arch/sparc/isa/formats/integerop.isa: src/arch/sparc/isa/formats/mem/basicmem.isa: src/arch/sparc/isa/formats/mem/blockmem.isa: src/arch/sparc/isa/formats/mem/util.isa: src/arch/sparc/isa/formats/nop.isa: src/arch/sparc/isa/formats/priv.isa: src/arch/sparc/isa/formats/trap.isa: Rearranged to work with new InstObjParam scheme. src/cpu/o3/sparc/dyn_inst.hh: Added functions to access the miscregs using the indexes from instructions srcReg and destReg arrays. Also changed the names of the other accessors so that they have the suffix "Operand" if they use those arrays. src/cpu/simple/base.hh: Added functions to access the miscregs using the indexes from instructions srcReg and destReg arrays. --HG-- extra : convert_revision : c91e1073138b72bcf4113a721e0ed40ec600cf2e
2006-12-06Many more fixes for SPARC_FS. Gets us to the point where SOFTINT startsAli Saidi
getting touched. configs/common/FSConfig.py: Physical memory on the T1 starts at 1MB, The first megabyte is unmapped to catch bugs src/arch/isa_parser.py: we should readmiscregwitheffect not readmiscreg src/arch/sparc/asi.cc: Fix AsiIsNucleus spelling with respect to header file Add ASI_LSU_CONTROL_REG to AsiSiMmu src/arch/sparc/asi.hh: Fix spelling of two ASIs src/arch/sparc/isa/decoder.isa: switch back to defaults letting the isa_parser insert readMiscRegWithEffect src/arch/sparc/isa/formats/mem/util.isa: Flesh out priviledgedString with hypervisor checks Make load alternate set the flags correctly src/arch/sparc/miscregfile.cc: insert some forgotten break statements src/arch/sparc/miscregfile.hh: Add some comments to make it easier to find which misc register is which number src/arch/sparc/tlb.cc: flesh out the tlb memory mapped registers a lot more src/base/traceflags.py: add an IPR traceflag src/mem/request.hh: Fix a bad assert() in request --HG-- extra : convert_revision : 1e11aa004e8f42c156e224c1d30d49479ebeed28
2006-12-06Added some debug output, and made sure not to accidentally ask for the ↵Gabe Black
result of a store conditional. --HG-- extra : convert_revision : d36ff9e2343fdf78a3bc16a1348975fdba5c55e2
2006-12-04Add in code to pass the ASI to translation.Gabe Black
--HG-- extra : convert_revision : 4a985635cda7680abcddaf0bc9579fa03d5bc7c6
2006-11-14Fix up the disassembly a little.Gabe Black
--HG-- extra : convert_revision : 7bdf68f445b79b1b5dbcdfa5fa1005c68d03724c
2006-11-11Fix for CAS so that it knows about all the possible code in the constructor.Gabe Black
--HG-- extra : convert_revision : 863d395f8e7c8ee2aec708ffcef842317ec9a89b
2006-10-29Move the mem classes into util.isa so that multiple inheritance can be used ↵Gabe Black
in the future for micro insts. --HG-- extra : convert_revision : c71faa5e43b56ed15d00ed5fd57c020d1c845445
2006-10-29Fix when the IsDelayedCommit flag is set.Gabe Black
--HG-- extra : convert_revision : ab6cd69f82b2013d66a91beaa3e39d8f417a9251
2006-10-29Bring casa and casxa up to dateGabe Black
src/arch/sparc/isa/decoder.isa: Fix up the casa and casxa instructions. src/arch/sparc/isa/formats/formats.isa: This is handled in loadstore.isa now src/arch/sparc/isa/formats/mem/basicmem.isa: src/arch/sparc/isa/formats/mem/blockmem.isa: Renamed doSplitExecute to doDualSplitExecute. This differentiates between the version that does both a register and immediate version, and one that just does a register version. src/arch/sparc/isa/formats/mem/mem.isa: The cas format is handled in loadstore.isa as well now. src/arch/sparc/isa/formats/mem/util.isa: Reorganized things a bit to better support cas --HG-- extra : convert_revision : 12411e89e763287e52f9825bf7a417b263c1037f
2006-10-23Move around more SPARC memory code, and make block memory operations work ↵Gabe Black
with the timing cpu --HG-- extra : convert_revision : 37358504c4d05d78d08c19ba3d0c99d38c4babf5
2006-10-23Broke Load/Store instructions into microcode, and partially refactored ↵Gabe Black
memory operations in the SPARC ISA description. --HG-- rename : src/arch/sparc/isa/formats.isa => src/arch/sparc/isa/formats/formats.isa rename : src/arch/sparc/isa/formats/mem.isa => src/arch/sparc/isa/formats/mem/basicmem.isa rename : src/arch/sparc/isa/formats/blockmem.isa => src/arch/sparc/isa/formats/mem/blockmem.isa rename : src/arch/sparc/isa/formats/mem.isa => src/arch/sparc/isa/formats/mem/mem.isa extra : convert_revision : dbbb00f997a102871b084b209b9fa08c5e1853ee
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