Linux Foundation e phatlalalitse tataiso e ncha - Selekane sa CHIPS. E le karolo ea morero ona, mokhatlo o tla nts'etsapele sistimi ea taeo ea RISC-V ea mahala le mahlale a ho theha li-processor tse thehiloeng ho eona. A re u bolelle ka ho qaqileng haholoanyane se etsahalang sebakeng sena.
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Hobaneng ha CHIPS Alliance e hlahile?
Li-patches tse sireletsang khahlanong le Meltdown le Specter, maemong a mang li-server ka 50%. Ka nako e ts'oanang, liphapang tse ncha tsa bofokoli tse amanang le ts'ebetso ea taelo e inahaneloang li ntse li hlaha. Mabapi le e 'ngoe ea tsona - Litsebi tsa ts'ireletso ea tlhahisoleseling li ile tsa e bitsa Spoiler. Boemo bona bo ama tlhokahalo ea ho hlahloba litharollo tse teng tsa hardware le mekhoa ea ntlafatso ea tsona. Haholo-holo, Intel moaho o mocha oa li-processor tsa ona, o sa ipapise le Meltdown le Specter.
Linux Foundation le eona ha ea ka ea ema ka thoko. Mokhatlo o qalile morero oa oona, Mokhatlo oa CHIPS, oo litho tsa oona li tla hlahisa li-processor tse thehiloeng ho RISC-V.
Ke merero efe e seng e ntse e ntlafatsoa?
Litho tsa CHIPS Alliance li kenyelletsa Google, Western Digital (WD) le SiFive. E mong le e mong oa bona o ile a hlahisa lintlafatso tsa hae. A re ke re bue ka tse ling tsa tsona.
RISCV-DV
Seqhenqha sa lipatlisiso tsa IT se lokolotse sethala sa ho leka li-processor tse thehiloeng ho RISC-V ho bula mohloli. Tharollo e sa reroang lihlopha tseo lekola ts'ebetso ea sesebelisoa: lits'ebetso tsa phetoho ea liteko, mehala ea mohala, - lirekoto, joalo-joalo.
Ka mohlala, boikarabello ba ho etsa tlhahlobo e bonolo ea litaelo tsa lipalo:
class riscv_arithmetic_basic_test extends riscv_instr_base_test;
`uvm_component_utils(riscv_arithmetic_basic_test)
`uvm_component_new
virtual function void randomize_cfg();
cfg.instr_cnt = 10000;
cfg.num_of_sub_program = 0;
cfg.no_fence = 1;
cfg.no_data_page = 1'b1;
cfg.no_branch_jump = 1'b1;
`DV_CHECK_RANDOMIZE_WITH_FATAL(cfg,
init_privileged_mode == MACHINE_MODE;
max_nested_loop == 0;)
`uvm_info(`gfn, $sformatf("riscv_instr_gen_config is randomized:n%0s",
cfg.sprint()), UVM_LOW)
endfunction
endclass
Ka bahlahisi, sethala se fapane le li-analogue tsa sona ka hore se lumella tlhahlobo e latellanang ea likarolo tsohle tsa chip, ho kenyeletsoa le block block.
OmniXtend protocol
Ena ke protocol ea marang-rang e tsoang ho WD e fanang ka khokahanyo ea cache holim'a Ethernet. e o lumella ho fapanyetsana melaetsa ka kotloloho le cache ea processor mme e sebelisoa ho hokahanya mefuta e fapaneng ea li-accelerator: GPU kapa FPGA. E boetse e loketse ho theha litsamaiso tse thehiloeng ho li-chips tse ngata tsa RISC-V.
Protocol e se e tšehetsoa e shebaneng le ts'ebetso ea data litsing tsa data. SweRV ke processor ea 32-bit, e nang le liphaephe tse peli tsa superscalar e hahiloeng holim'a theknoloji ea 28nm. Phaephe e 'ngoe le e' ngoe e na le mekhahlelo e robong, e leng se etsang hore ho khonehe ho kenya le ho phethahatsa litaelo tse ngata ka nako e le 'ngoe. Sesebelisoa se sebetsa ka lebelo la 1,8 GHz.
Jenereithara Rocket Chip
Tharollo e tsoa ho SiFive, e thehiloeng ke baetsi ba theknoloji ea RISC-V. ke jenereithara ea mantlha ea RISC-V ka puo ea Chisel. Eena sehlopha sa lilaebrari tse nang le parameterized tse sebelisoang ho theha .
Mabapi le , joale ke puo ea tlhaloso ea hardware e thehiloeng ho Scala. E hlahisa khoutu e tlase ea Verilog eo bakeng sa ts'ebetso ho ASIC le FPGA. Kahoo, e u lumella ho sebelisa melaoana ea OOP ha u nts'etsapele .
Litebello tsa Alliance
Litsebi li re boikitlaetso ba Linux Foundation bo tla etsa hore 'maraka oa processor e be oa demokrasi le ho bulehela libapali tse ncha. Ho IDC hore botumo bo ntseng bo eketseha ba merero e joalo bo tla ba le phello e ntle ho nts'etsopele ea mahlale a ho ithuta ka mochini le litsamaiso tsa AI ka kakaretso.
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Nts'etsopele ea li-processor tse bulehileng le tsona li tla fokotsa litšenyehelo tsa ho rala li-chips tse tloaelehileng. Leha ho le joalo, sena se tla etsahala feela haeba sechaba sa Linux Foundation se khona ho hohela bahlahisi ba lekaneng.
Merero e ts'oanang
Mekhatlo e meng le eona e nts'etsapele merero e amanang le lisebelisoa tse bulehileng. Mohlala ke khonsortium ea CXL, e hlahisitseng maemo a Compute Express Link bohareng ba Hlakubele. Theknoloji e tšoana le OmniXtend hape e hokahanya CPU, GPU, FPGA. Bakeng sa phapanyetsano ea data, maemo a sebelisa bese ea PCIe 5.0.
Morero o mong o etselitsoeng nts'etsopele ea mahlale a processor ke MIPS Open, e hlahileng ka December 2018. Boiteko bona bo entsoe ke ho qala Wave Computing. Bahlahisi ba ntse ba rera Ho fihlella lisebelisoa tsa morao-rao tsa 32- le 64-bit MIPS bakeng sa sechaba sa IT. Ho qala morero likhoeling tse tlang.
Ka kakaretso, mokhoa o bulehileng oa mohloli o ntse o amoheloa ka kakaretso eseng feela bakeng sa software, empa le bakeng sa hardware. Merero e joalo e tšehetsoa ke lik'hamphani tse kholo. Ka hona, re ka lebella hore haufinyane lisebelisoa tse ngata tse thehiloeng ho litekanyetso tse bulehileng tsa hardware li tla hlaha 'marakeng.
Litaba tsa morao-rao tse tsoang ho blog ea rona ea khoebo:
Melaetsa e tsoang mocha oa rona oa Telegraph:
Source: www.habr.com