{"id":30031,"date":"2019-10-31T21:33:20","date_gmt":"2019-10-31T18:33:20","guid":{"rendered":"https:\/\/prohoster.info\/blog\/linux-foundation-zajmetsya-open-source-chipami\/"},"modified":"2019-10-31T21:33:20","modified_gmt":"2019-10-31T18:33:20","slug":"linux-foundation-zajmetsya-open-source-chipami","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/linux-foundation-zajmetsya-open-source-chipami","title":{"rendered":"Linux Foundation tegeleb avatud l\u00e4htekoodiga kiipidega","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Linux Foundation avas uusi suund \u2014 CHIPS Alliance. Selle projekti raames arendab organisatsioon avatud RISC-V k\u00e4skude s\u00fcsteemi ja tehnoloogiaid selle p\u00f5hjal protsessorite loomiseks. R\u00e4\u00e4gime l\u00e4hemalt, mis selles valdkonnas toimub.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/it-grad\/blog\/444664\/\"><img decoding=\"async\" alt=\"Linux Foundation tegeleb avatud l\u00e4htekoodiga kiipidega\" src=\"\/wp-content\/uploads\/2019\/03\/1462a91d6041c6aa6c2fdb4267ecbd92.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<i>\/ \u0444\u043e\u0442\u043e <noindex><a rel=\"nofollow\" href=\"https:\/\/www.flickr.com\/photos\/120586634@N05\/32418936265\/\">Gareth Halfacree<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/\">CC BY-SA<\/a><\/noindex><\/i><\/p>\n<h2>Miks CHIPS Alliance tekkis<\/h2>\n<p>\nMeltdown'i ja Spectre'i vastu kaitsvad plaastrid v\u00e4hendavad m\u00f5nel juhul <noindex><a rel=\"nofollow\" href=\"https:\/\/www.tomshardware.com\/news\/linux-spectre-patch-50-percent-performance-penalty,38099.html\">serverite j\u00f5udlust<\/a><\/noindex> 50%. Samas j\u00e4tkuvalt ilmnevad uusi haavatavuse variante, mis on seotud spekulatiivsete k\u00e4skude t\u00e4itmisega. \u00dchest neist <noindex><a rel=\"nofollow\" href=\"https:\/\/arxiv.org\/pdf\/1903.00446.pdf\">saadi teada m\u00e4rtsi alguses<\/a><\/noindex> \u2014 k\u00fcberturbe eksperdid nimetavad seda Spoileriks. See olukord m\u00f5jutab <noindex><a rel=\"nofollow\" href=\"https:\/\/www.pcworld.com\/article\/3299477\/solving-spectre-and-meltdown-may-ultimately-require-an-entirely-new-type-of-processor.html\">arutelu<\/a><\/noindex> vajadust olemasolevaid riistvaralahendusi ja nende arendamise l\u00e4henemisi \u00fcle vaadata. Eelk\u00f5ige valmistab Intel <noindex><a rel=\"nofollow\" href=\"https:\/\/hackaday.com\/2018\/12\/12\/intel-announces-faster-processor-patched-for-meltdown-and-spectre\/\">juba ette<\/a><\/noindex> uue arhitektuuri oma protsessoritele, mis ei ole Meltdown'i ja Spectre'ile vastuv\u00f5tlikud.<\/p>\n<p>Ka Linux Foundation ei j\u00e4\u00e4 k\u00f5rvale. Organisatsioon k\u00e4ivitas oma algatuse \u2014 CHIPS Alliance, mille liikmed tegelevad RISC-V baasil olevate protsessorite arendamisega.<\/p>\n<h2>Milliseid projekte juba arendatakse<\/h2>\n<p><\/p>\n<blockquote><p>CHIPS Alliance'i liikmete hulgas on Google, Western Digital (WD) ja SiFive. Iga\u00fchel neist on oma arendused. R\u00e4\u00e4gime m\u00f5nest neist.<\/p><\/blockquote>\n<p><\/p>\n<h5>RISCV-DV<\/h5>\n<p>\nOtsingutehnoloogia hiiglane andis avatud l\u00e4htekoodiga platvormi RISC-V baasil olevate protsessorite testimiseks. Lahendus genereerib juhuslikult <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/google\/riscv-dv\">k\u00e4sklusi, et<\/a><\/noindex> kontrollida seadme t\u00f6\u00f6kindlust: testivad \u00fcleminekute, kutsumisesteegi, <noindex><a rel=\"nofollow\" href=\"https:\/\/content.riscv.org\/wp-content\/uploads\/2018\/12\/14.25-Tao-Liu-Richard-Ho-UVM-based-RISC-V-Processor-Verification-Platform.pdf\">v\u00f5imaldavad<\/a><\/noindex> CSR <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Control\/Status_Register\">-registereid ja muid.<\/a><\/noindex>niimoodi n\u00e4eb v\u00e4lja klass<\/p>\n<p>N\u00e4iteks, <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/google\/riscv-dv\/blob\/master\/test\/riscv_instr_test_lib.sv\">, mis vastutab lihtsate aritmeetiliste k\u00e4skude testi l\u00e4biviimise eest:<\/a><\/noindex>class riscv_arithmetic_basic_test extends riscv_instr_base_test;\n\n  `uvm_component_utils(riscv_arithmetic_basic_test)\n  `uvm_component_new\n\n  virtual function void randomize_cfg();\n    cfg.instr_cnt = 10000;\n    cfg.num_of_sub_program = 0;\n    cfg.no_fence = 1;\n    cfg.no_data_page = 1'b1;\n    cfg.no_branch_jump = 1'b1;\n    `DV_CHECK_RANDOMIZE_WITH_FATAL(cfg,\n                                   init_privileged_mode == MACHINE_MODE;\n                                   max_nested_loop == 0;)\n    `uvm_info(`gfn, $sformatf(\"riscv_instr_gen_config is randomized:n%0s\",\n                    cfg.sprint()), UVM_LOW)\n  endfunction\n\nendclass<\/p>\n<pre><code class=\"cpp\">arendajad, et platvorm erineb analoogidest sellega, et v\u00f5imaldab j\u00e4rjestikku testida k\u00f5iki kiibi komponente, sealhulgas m\u00e4lu blokk.\n<\/code><\/pre>\n<p>\nAjal <noindex><a rel=\"nofollow\" href=\"https:\/\/content.riscv.org\/wp-content\/uploads\/2018\/12\/14.25-Tao-Liu-Richard-Ho-UVM-based-RISC-V-Processor-Verification-Platform.pdf\">s\u00f5nadele<\/a><\/noindex> OmniXtendi protokoll<\/p>\n<h5>See on WD loodud v\u00f5rguprotokoll, mis tagab vahem\u00e4lu koherentse \u00fcleandmise andmete edastamisel Etherneti kaudu.<\/h5>\n<p>\nOmniXtend <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/westerndigitalcorporation\/omnixtend\">OmniXtend<\/a><\/noindex> v\u00f5imaldab vahetada s\u00f5numeid otse protsessori puhverdatuga ja seda kasutatakse erinevat t\u00fc\u00fcpi kiirendite, nagu GPU v\u00f5i FPGA, \u00fchendamiseks. Samuti sobib see RISC-V mitme kiibi s\u00fcsteemide loomiseks.<\/p>\n<p>Protokolli toetavad juba <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/westerndigitalcorporation\/swerv_eh1\">SweRV kiibid<\/a><\/noindex>, mis on suunatud andmete t\u00f6\u00f6tlemiseks andmekeskustes. SweRV on 32-bitine kahe toruga superskaalarprotsessor, valmistatud 28-nanomeetrise tehnoloogia j\u00e4rgi. Iga toru omab \u00fcheksa taset, mis v\u00f5imaldab laadida ja t\u00e4ita mitmeid k\u00e4ske korraga. Seade t\u00f6\u00f6tab 1,8 GHz sagedusel.<\/p>\n<h5>Rocket Chip generaator<\/h5>\n<p>\non SiFive'i lahendus, mille asutasid RISC-V tehnoloogia arendajad. <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/freechipsproject\/rocket-chip\">Rocket Chip<\/a><\/noindex> on RISC-V protsessorituumade generaator Chisel'i keeles. See <noindex><a rel=\"nofollow\" href=\"https:\/\/www2.eecs.berkeley.edu\/Pubs\/TechRpts\/2016\/EECS-2016-17.pdf\">on<\/a><\/noindex> on parametriseeritud raamatukogude komplekt, mida kasutatakse <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%A1%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D0%B0_%D0%BD%D0%B0_%D0%BA%D1%80%D0%B8%D1%81%D1%82%D0%B0%D0%BB%D0%BB%D0%B5\">SoC<\/a><\/noindex>.<\/p>\n<p>Mis puudutab <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/freechipsproject\/chisel3\/\">Chisel<\/a><\/noindex>, see on riistvara kirjeldamise keel, mis p\u00f5hineb Scala-l. See genereerib madala taseme koodi Verilogis, mis <noindex><a rel=\"nofollow\" href=\"https:\/\/chisel.eecs.berkeley.edu\/\">k\u00f5ikide<\/a><\/noindex> on m\u00f5eldud ASICide ja FPGA-de jaoks t\u00f6\u00f6tlemiseks. Seega v\u00f5imaldab see kasutada OOP p\u00f5him\u00f5tteid arenduses. <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%A3%D1%80%D0%BE%D0%B2%D0%B5%D0%BD%D1%8C_%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%BE%D0%B2%D1%8B%D1%85_%D0%BF%D0%B5%D1%80%D0%B5%D0%B4%D0%B0%D1%87\">RTL<\/a><\/noindex>.<\/p>\n<h2>Liidu v\u00e4ljavaated<\/h2>\n<p>\nEkspertide s\u00f5nul muudab Linux Foundation'i algatus protsessorite turu demokraatlikumaks ja avatumaks uuteks m\u00e4ngijateks. IDC <noindex><a rel=\"nofollow\" href=\"https:\/\/devops.com\/linux-foundation-to-host-chips-alliance-project-to-propel-industry-innovation-through-open-source-cpu-chip-and-soc-design\/\">toovad esile<\/a><\/noindex>, et selliste projektide populaarsuse kasv m\u00f5jutab positiivselt masin\u00f5ppe ja AI s\u00fcsteemide arengut laiemalt.<\/p>\n<p><img decoding=\"async\" alt=\"Linux Foundation tegeleb avatud l\u00e4htekoodiga kiipidega\" src=\"\/wp-content\/uploads\/2019\/03\/9b7ea1fb634f7fc1e258d38e2fe96398.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>\/ \u0444\u043e\u0442\u043e <noindex><a rel=\"nofollow\" href=\"https:\/\/www.flickr.com\/photos\/130561288@N04\/46764481872\">Fritzchens Fritz<\/a><\/noindex> Arvamused<\/i><\/p>\n<p>Open source protsessorite areng aitab samuti v\u00e4hendada kohandatud kiipide projekteerimise kulusid. Kuid see juhtub ainult siis, kui Linux Foundation'i kogukond suudab \u043f\u0440\u0438\u0432\u043b\u0435\u0447\u0435\u043d\u043d\u044b\u0435 piisavalt arendajaid.<\/p>\n<h2>Sarnased projektid<\/h2>\n<p>\nAvatud riistvaraga seotud projektide arendamisega tegelevad ka teised organisatsioonid. N\u00e4iteks CXL konsortsium, mis esitles m\u00e4rtsi keskpaiku Compute Express Linki standardit. Tehnoloogia on OmniXtendi analoog ja \u00fchendab samuti CPU, GPU, FPGA. Andmete edastamiseks kasutab standard PCIe 5.0 bussi.<\/p>\n<p>Veel \u00fcks projekti, mis tegeleb protsessoritehnoloogiate arendamisega, on MIPS Open, mis loodi detsembris 2018. Initsiatiivi l\u00f5i Wave Computing'i idufirma. Arendajad plaanivad <noindex><a rel=\"nofollow\" href=\"https:\/\/wavecomp.ai\/mips-open\/\">avatud<\/a><\/noindex> IT-kogukonnale juurdep\u00e4\u00e4s vilatest 32- ja 64-bitistest MIPS k\u00e4su komplektidest. Projekti algus <noindex><a rel=\"nofollow\" href=\"https:\/\/www.sensorsmag.com\/embedded\/mips-open-advisory-board-open-for-biz\">oodatakse<\/a><\/noindex> toimub l\u00e4hikuudel.<\/p>\n<p>\u00dcldiselt muutub avatud l\u00e4htekoodiga l\u00e4henemine j\u00e4rjest aktsepteeritavamaks mitte ainult tarkvara, vaid ka riistvara osas. Selliseid projekte toetavad suured ettev\u00f5tted. Seega v\u00f5ib oodata, et juba l\u00e4hitulevikus tuleb turule rohkem seadmeid, mis p\u00f5hinevad avatud riistvarastandarditel.<\/p>\n<p>\nMeie ettev\u00f5tte blogi v\u00e4rsked postitused:<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/iaas-blog.it-grad.ru\/novosti\/chto-nuzhno-znat-o-pci-dss-obzor-standarta\/\">Mida on vaja teada PCI DSS-st: standardi \u00fclevaade<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/iaas-blog.it-grad.ru\/tendencii\/mir-do-i-posle-kak-izmenilas-zhizn-s-nastupleniem-dns-flag-day\/\">Maailm enne ja p\u00e4rast. Kuidas on elu muutunud DNS Flag Day'ga seoses<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/iaas-blog.it-grad.ru\/funkcionalnost\/posleavarijnoe-vosstanovlenie-kak-usluga-disaster-recovery-as-a-service\/\">H\u00e4daolukordade taastamine teenusena: mida on vaja teada<\/a><\/noindex><\/li>\n<\/ul>\n<p>\nPostitused meie Telegrami kanalist:<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/201\">Kuidas hallata riistvara andmekeskuses - kaks uut tehnoloogiat<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/194\">Kuidas IaaS-teenusepakkuja kaitseb klientide andmeid<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/190\">Miks on VMware vSphere vajalik HTML5-klient?<\/a><\/noindex><\/li>\n<\/ul>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/it-grad\/blog\/444664\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>Linux Foundation \u043e\u0442\u043a\u0440\u044b\u043b\u0438 \u043d\u043e\u0432\u043e\u0435 \u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u2014 CHIPS Alliance. \u0412 \u0440\u0430\u043c\u043a\u0430\u0445 \u044d\u0442\u043e\u0433\u043e \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044f \u0431\u0443\u0434\u0435\u0442 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0442\u044c \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u043a\u043e\u043c\u0430\u043d\u0434 RISC-V \u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 \u043d\u0430 \u0435\u0451 \u043e\u0441\u043d\u043e\u0432\u0435. \u0420\u0430\u0441\u0441\u043a\u0430\u0436\u0435\u043c \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u0435\u0435, \u0447\u0442\u043e \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442 \u0432 \u044d\u0442\u043e\u0439 \u0441\u0444\u0435\u0440\u0435. \/ \u0444\u043e\u0442\u043e Gareth Halfacree CC BY-SA \u041f\u043e\u0447\u0435\u043c\u0443 \u043f\u043e\u044f\u0432\u0438\u043b\u0441\u044f CHIPS Alliance \u041f\u0430\u0442\u0447\u0438, \u0437\u0430\u0449\u0438\u0449\u0430\u044e\u0449\u0438\u0435 \u043e\u0442 Meltdown \u0438 Spectre, \u0432 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0441\u043b\u0443\u0447\u0430\u044f\u0445 \u0441\u043d\u0438\u0436\u0430\u044e\u0442 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-30031","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - 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