sanchayanmaity/gem5
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
5102 commits 2 branches 0 tags 204 MiB
Commit graph

5102 commits

This branch
This branch
All branches
Author SHA1 Message Date
Gabe Black
d9da10199e Make SPARC build o3 by default. 
--HG--
extra : convert_revision : 7be49f9d395094d849d8da59b0fd4efe962fb201
 2007-04-09 03:40:21 -04:00
Gabe Black
85f9213b8a Accidentally didn't save when moving the specialization code out of here. 
--HG--
extra : convert_revision : 1ffe0c497e10fef1eb84b3c97c00b98d820fbb97
 2007-04-09 01:08:05 +00:00
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
d29979b043 Merge zizzer.eecs.umich.edu:/bk/newmem 
into  ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-o3-spec

--HG--
extra : convert_revision : dba3542ab73cc8ae46347a14ae4c133f1276011c
 2007-04-08 01:54:08 +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
5d52cd6409 Move the instruction specialization stuff out of the microassembler file, and added some comments to main.isa 
--HG--
extra : convert_revision : 1534ae7d5a9e95bf662d79a04f9286c227541c6c
 2007-04-06 16:55:56 +00:00
Gabe Black
a3ed19f82a Merge zizzer.eecs.umich.edu:/bk/newmem 
into  ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-x86

--HG--
extra : convert_revision : 8e624bb95cb9f478ca7ac1dbbd64e20674e3e224
 2007-04-06 16:39:47 +00:00
Gabe Black
59df95c7e6 Consolidated the microcode assembler to help separate it from more x86-centric stuff. 
--HG--
extra : convert_revision : 5e7e8026e24ce44a3dac4a358e0c3e5560685958
 2007-04-06 16:39:25 +00:00
Gabe Black
2a1c102f25 Refactored the x86 isa description some more. There should be more seperation between x86 specific parts, and those parts which are implemented in the isa description but could eventually be moved elsewhere. 
--HG--
rename : src/arch/x86/isa/formats/macroop.isa => src/arch/x86/isa/macroop.isa
extra : convert_revision : 5ab40eedf574fce438d9fe90e00a496dc95c8bcf
 2007-04-06 16:00:56 +00:00
Gabe Black
75e8838ba4 Clean up the code a little, fix (I think) a perceived problem with immediate sizes, and sign extend the 32-bit-acting-like-64-bit-immediates. 
--HG--
extra : convert_revision : e59b747198cc79d50045bd2dc45b2e2b97bbffcc
 2007-04-06 15:19:23 +00:00
Gabe Black
e633e23a3a Add in a stub merging function 
--HG--
extra : convert_revision : 15e3cdb4ebcd31bc44204687ba59dde00c56c6be
 2007-04-06 15:16:36 +00:00
Gabe Black
47c24ff07a Clean up the macroop code. 
--HG--
extra : convert_revision : 3cf83c3e038fece6190dbb91f56deb0498c9a70d
 2007-04-06 15:15:36 +00:00
Gabe Black
3c9768e644 Merge zizzer.eecs.umich.edu:/bk/newmem 
into  ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-o3-spec

--HG--
extra : convert_revision : b7e89d32df946ea24c438292308f5fc8248f8bd9
 2007-04-06 14:37:46 +00:00
Gabe Black
077183f7ec Merge zizzer.eecs.umich.edu:/bk/newmem 
into  ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-x86

--HG--
extra : convert_revision : efdbf9787383dc1df544b7276f8120285e69bf69
 2007-04-05 11:35:31 +00:00
Gabe Black
ff7b89beee The process of going from an instruction definition to an instruction to be returned by the decoder has been fleshed out more. The following steps describe how an instruction implementation becomes a StaticInst. 
1. Microops are created. These are StaticInsts use templates to provide a basic form of polymorphism without having to make the microassembler smarter.
2. An instruction class is created which has a "templated" microcode program as it's docstring. The template parameters are refernced with ^ following by a number.
3. An instruction in the decoder references an instruction template using it's mnemonic. The parameters to it's format end up replacing the placeholders. These parameters describe a source for an operand which could be memory, a register, or an immediate. It it's a register, the register index is used. If it's memory, eventually a load/store will be pre/postpended to the instruction template and it's destination register will be used in place of the ^. If it's an immediate, the immediate is used. Some operand types, specifically those that come from the ModRM byte, need to be decoded further into memory vs. register versions. This is accomplished by making the decode_block text for these instructions another case statement based off ModRM.
4. Once all of the template parameters have been handled, the instruction goes throw the microcode assembler which resolves labels and creates a list of python op objects. If an operand is a register, it uses a % prefix, an immediate uses $, and a label uses @. If the operand is just letters, numbers, and underscores, it can appear immediately after the prefix. If it's not, it can be encolsed in non nested {}s.
5. If there is a single "op" object (which corresponds to a single microop) the decoder is set up to return it directly. If not, a macroop wrapper is created around it.

In the future, I'm considering seperating the operand type specialization from the template substitution step. A problem this introduces is that either the template arguments need to be kept around for the specialization step, or they need to be re-extracted. Re-extraction might be the way to go so that the operand formats can be coded directly into the micro assembler template without having to pass them in as parameters. I don't know if that's actually useful, though.

src/arch/x86/isa/decoder/one_byte_opcodes.isa:
src/arch/x86/isa/microasm.isa:
src/arch/x86/isa/microops/microops.isa:
src/arch/x86/isa/operands.isa:
src/arch/x86/isa/microops/base.isa:
    Implemented polymorphic microops and changed around the microcode assembler syntax.

--HG--
extra : convert_revision : e341f7b8ea9350a31e586a3d33250137e5954f43
 2007-04-04 23:35:20 +00:00
Gabe Black
ab2bed349b Fix a regular expression problem when recognizing labels for string substitution. 
--HG--
extra : convert_revision : ba398e1b434efda28882f159d5a4419302276371
 2007-04-04 23:19:32 +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
b247e02f6e Merge ktlim@zizzer:/bk/newmem 
into  zamp.eecs.umich.edu:/z/ktlim2/clean/tmp/head

--HG--
extra : convert_revision : 7181d8c2ee673322372484cf288a94ebd91b5265
 2007-04-04 15:39:13 -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
Ali Saidi
d9ab45d066 Merge zizzer:/bk/newmem 
into  zeep.pool:/z/saidi/work/m5.newmem

--HG--
extra : convert_revision : be37463ea3ca38ef02ae0b82da0752f240a530d0
 2007-04-04 13:57:23 -04:00
Ali Saidi
d0ea8ff088 The MemoryObject tha owns a port should delete it if it so chooses when deletePortRefs() is called on it with that port as a parameter. 
In this way a MemoryObject can keep a functional port around and give it to anyone who wants to do functional accesses rather
than creating a new one each time.

src/mem/bus.cc:
src/mem/bus.hh:
src/mem/cache/cache_impl.hh:
    only keep around one func port we give to anyone who wants it. Otherwise we can run out of port ids reasonably quickly if
    a lot of functional accesses are happening (e.g. remote debugging, dprintk, etc)

--HG--
extra : convert_revision : 6a9e3e96f51cedaab6de1b36cf317203899a3716
 2007-04-04 13:56:38 -04:00
Gabe Black
4285990a96 Reworking how x86's isa description works. I'm adopting the following definitions to make figuring out what's what a little easier: 
MicroOp: A single operation actually implemented in hardware.
MacroOp: A collection of microops which are executed as a unit.
Instruction: An architected instruction which can be implemented with a macroop or a microop.

--HG--
extra : convert_revision : 1cfc8409cc686c75220767839f55a30551aa6f13
 2007-04-04 14:31:59 +00:00
Gabe Black
7f5409f2ba Make "Name" really be the same as "name" with only the first letter capitalized. Before, it had the first letter capitalized but all the others lower case 
--HG--
extra : convert_revision : bcbb28f2bf268765c1d37075a4417a4a6c1b9588
 2007-04-04 14:28:43 +00:00
Gabe Black
65fedeb5a7 Made x86 ExtMachInsts distinguishable from each other by defining a real == and a real hash function. 
--HG--
extra : convert_revision : 30f29a36f6ab44e67e62aaf81b685fbe1267c746
 2007-04-04 14:27:00 +00:00
Gabe Black
6010c6ded4 Added all the different variations of the register names. 
--HG--
extra : convert_revision : ff06bdca556a5e1a0dfe7978575c2277c30c002a
 2007-04-04 14:25:36 +00:00
Kevin Lim
9e1f3bc11a Merge ktlim@zizzer:/bk/newmem 
into  zamp.eecs.umich.edu:/z/ktlim2/clean/tmp/head

--HG--
extra : convert_revision : 4a8cbb65b19636c31b5c6fd5f24c90f8f2148ed1
 2007-04-04 00:14:44 -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
Ali Saidi
30f101881f Merge zizzer.eecs.umich.edu:/z/m5/Bitkeeper/newmem 
into  zizzer.eecs.umich.edu:/tmp/newmem.1449b

--HG--
extra : convert_revision : 05021f4884de7af769df9f9c4416c483baa9c2fe
 2007-04-03 18:29:09 -04:00
Ali Saidi
4c555cffa9 fixed sttw instruction changes execution trace a bit 
--HG--
extra : convert_revision : 4bebe6f9acedfd29dfe02f16d4ddb551a2fc7290
 2007-04-03 18:28:59 -04:00
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
Gabe Black
93d4c624c5 Merge zizzer.eecs.umich.edu:/bk/newmem 
into  ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-x86

--HG--
extra : convert_revision : 7be8ebe55a7b11552d78701520f93aa86db1e501
 2007-04-03 15:01:36 +00:00
Gabe Black
61c56ffeaf A batch of changes and fixes. Macroops are now generated automatically, multiops do alot more of what they're supposed to (excluding memory operands), and microops are slightly more implemented. 
--HG--
extra : convert_revision : 518059f47e11df50aa450d4a322ef2ac069c99c9
 2007-04-03 15:01:09 +00:00
Gabe Black
0ce6936e7d Zero out ModRM if the byte isn't there, and fix some displacement size stuff. 
--HG--
extra : convert_revision : f43abf33a223a665b30098c63011fb162200d5e6
 2007-04-03 14:56:24 +00:00
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
5c97b56eb5 Update refs for recent changes. 
--HG--
extra : convert_revision : 30a02eec4d83c4e1708ed0a4e2b5faea88fe8e03
 2007-03-30 16:59:40 -04:00
Ali Saidi
c46e946c94 Merge zizzer:/bk/newmem 
into  zeep.pool:/z/saidi/work/m5.newmem

--HG--
extra : convert_revision : 2f7f50f4ad31f741c0c67db96e49d30ca078fc94
 2007-03-29 22:01:34 -04:00
Ali Saidi
528694817f make serialization at least seem to work 
--HG--
extra : convert_revision : cbfdb64f9a204670b8dd0294c74a17044b9f330c
 2007-03-29 22:00:01 -04:00
Gabe Black
ac191ecc78 Merge zizzer.eecs.umich.edu:/bk/newmem 
into  ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-x86

--HG--
extra : convert_revision : e6a6c65cb0f8df9af82daa3eebd989c4211edfb0
 2007-03-29 22:43:38 +00:00
Gabe Black
1d3253abfe Merge zizzer.eecs.umich.edu:/z/m5/Bitkeeper/newmem 
into  zizzer.eecs.umich.edu:/.automount/wexford/x/gblack/m5/newmem-mcf

--HG--
extra : convert_revision : f2c3503e8893b957330cf3791748a45800ea5a82
 2007-03-29 17:43:37 -05:00
Gabe Black
db6ed0eee2 Added SPARC_SE simple timing twolf regression. 
--HG--
extra : convert_revision : 289aadd4bc762a5a9e7a82ee15196ebdea2521e5
 2007-03-29 17:41:20 -05:00
Gabe Black
85c1e89444 Added a SPARC_SE simple timing mcf regression. 
--HG--
extra : convert_revision : d8fea11c37bd3f0b5f5e8880c92b711892ee8125
 2007-03-29 17:39:34 -05:00
Ali Saidi
8ca218cab5 get rid of CWP bounds warning... 
--HG--
extra : convert_revision : 74df09341c091c2d6ca9b46c6a3521f22b48acf4
 2007-03-29 15:57:11 -04:00
Ali Saidi
370b712360 add to instruction test sttw instruction 
--HG--
extra : convert_revision : 16efbe12e609a909a589505ad6c473eb44c38f9c
 2007-03-29 15:41:09 -04:00
Gabe Black
7fcc9d2106 Made the MultiOp format do a little more. It now sets up single microop instructions to return an instance of the right class. The code to decode register numbers and generate loads and stores still needs to be added. Also, a syntax for specifying operands as sources, destinations, or both needs to be established. Multipl microop instructions are also not handled, pending real macroop generation support. 
--HG--
extra : convert_revision : 1a0a4b36afce8255e23e3cdd7a85c1392dda5f72
 2007-03-29 17:57:19 +00:00
Gabe Black
e67a207ad3 Add a microcode assembler. A microcode "program" is a series of statements. Each statement has an optional label at the beginning, a capitilized microcode class name which is roughly equivalent to a mnemonic in a regular ISA, and then an optional series of operands seperated by white space. The operands are either a decimal constant, a label, or a code fragment surrounded by non nested {}s. Labels are a letter or underscore followed by letters, underscores, or digits. The syntax for describing code segments might need to be changed if a need arrises to have {}s in the code itself. 
--HG--
extra : convert_revision : 8e5cfdd1a3c9a7e3731fdf6acd615ee82ac2b9b7
 2007-03-29 17:57:18 +00:00
Gabe Black
5c4cc4b552 Merge zizzer.eecs.umich.edu:/z/m5/Bitkeeper/newmem 
into  zizzer.eecs.umich.edu:/.automount/wexford/x/gblack/m5/newmem-vortex

--HG--
extra : convert_revision : 709766f1a1a2347c92d4f508e38b9602c1030717
 2007-03-29 12:57:17 -05:00
Gabe Black
0f2201c1fe Merge zizzer.eecs.umich.edu:/z/m5/Bitkeeper/newmem 
into  zizzer.eecs.umich.edu:/.automount/wexford/x/gblack/m5/newmem-vortex

--HG--
extra : convert_revision : 7efa5fe80ef75155685b93453e967a1115318b9d
 2007-03-29 12:53:36 -05:00
Gabe Black
484214db78 Merge zizzer.eecs.umich.edu:/z/m5/Bitkeeper/newmem 
into  zizzer.eecs.umich.edu:/.automount/wexford/x/gblack/m5/newmem-gzip

--HG--
extra : convert_revision : 39cf24fe19cd48306baef1ef147a3f4738d0fe8a
 2007-03-29 12:52:09 -05:00