{"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\/sv\/blog\/linux-foundation-zajmetsya-open-source-chipami","title":{"rendered":"Linux Foundation kommer att arbeta med open source-chip.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Linux Foundation har inr\u00e4ttat ett nytt omr\u00e5de - CHIPS Alliance. Inom ramen f\u00f6r detta projekt kommer organisationen att utveckla det fria RISC-V-kommandot och teknologier f\u00f6r att skapa processorer baserade p\u00e5 det. L\u00e5t oss titta n\u00e4rmare p\u00e5 vad som h\u00e4nder inom detta omr\u00e5de.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/it-grad\/blog\/444664\/\"><img decoding=\"async\" alt=\"Linux Foundation kommer att arbeta med open source-chip.\" 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>Varf\u00f6r CHIPS Alliance har skapats<\/h2>\n<p>\nPatchar som skyddar mot Meltdown och Spectre kan i vissa fall <noindex><a rel=\"nofollow\" href=\"https:\/\/www.tomshardware.com\/news\/linux-spectre-patch-50-percent-performance-penalty,38099.html\">minska prestandan<\/a><\/noindex> p\u00e5 servrar med 50%. Samtidigt dyker det fortfarande upp nya varianter av s\u00e5rbarheter kopplade till spekulativ exekvering av instruktioner. En av dem <noindex><a rel=\"nofollow\" href=\"https:\/\/arxiv.org\/pdf\/1903.00446.pdf\">blev k\u00e4nd i b\u00f6rjan av mars<\/a><\/noindex> - experter inom cybers\u00e4kerhet har kallat den Spoiler. Denna situation p\u00e5verkar <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\">diskussion<\/a><\/noindex> behovet av att ompr\u00f6va befintliga h\u00e5rdvarul\u00f6sningar och tillv\u00e4gag\u00e5ngss\u00e4tt f\u00f6r deras utveckling. Bland annat <noindex><a rel=\"nofollow\" href=\"https:\/\/hackaday.com\/2018\/12\/12\/intel-announces-faster-processor-patched-for-meltdown-and-spectre\/\">f\u00f6rbereder Intel<\/a><\/noindex> en ny arkitektur f\u00f6r sina processorer som inte \u00e4r mottagliga f\u00f6r Meltdown och Spectre.<\/p>\n<p>Linux Foundation har ocks\u00e5 engagerat sig. Organisationen har lanserat ett eget initiativ - CHIPS Alliance - vars deltagare kommer att arbeta med utvecklingen av processorer baserade p\u00e5 RISC-V.<\/p>\n<h2>Vilka projekt utvecklas redan<\/h2>\n<p><\/p>\n<blockquote><p>Bland deltagarna i CHIPS Alliance finns Google, Western Digital (WD) och SiFive. Var och en av dem har presenterat sina egna l\u00f6sningar. Vi ska titta p\u00e5 n\u00e5gra av dem.<\/p><\/blockquote>\n<p><\/p>\n<h5>RISCV-DV<\/h5>\n<p>\nDen s\u00f6kande IT-j\u00e4tten har \u00f6verl\u00e5tit en testplattform f\u00f6r open source-processorer baserade p\u00e5 RISC-V. L\u00f6sningen genererar slumpm\u00e4ssigt <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/google\/riscv-dv\">instruktioner som<\/a><\/noindex> m\u00f6jligg\u00f6r <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\">att kontrollera enhetens funktionalitet: de testar \u00f6verg\u00e5ngsprocesserna, stackar f\u00f6r samtal,<\/a><\/noindex> CSR <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Control\/Status_Register\">-register och mer.<\/a><\/noindex>S\u00e5 h\u00e4r ser klassen<\/p>\n<p>Till exempel, <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/google\/riscv-dv\/blob\/master\/test\/riscv_instr_test_lib.sv\">, som ansvarar f\u00f6r att utf\u00f6ra ett enkelt test av aritmetiska instruktioner:<\/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\">utvecklare, plattformen skiljer sig fr\u00e5n andra genom att den till\u00e5ter att alla chipkomponenter, inklusive minnesblock, kontrolleras sekventiellt.\n<\/code><\/pre>\n<p>\nuttalandet <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\">ord<\/a><\/noindex> OmniXtend-protokollet<\/p>\n<h5>Detta \u00e4r ett n\u00e4tverksprotokoll fr\u00e5n WD som s\u00e4kerst\u00e4ller cache-kohherens vid \u00f6verf\u00f6ring av data \u00f6ver Ethernet.<\/h5>\n<p>\nOmniXtend <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/westerndigitalcorporation\/omnixtend\">OmniXtend<\/a><\/noindex> m\u00f6jligg\u00f6r direkt kommunikation med processorns cache och anv\u00e4nds f\u00f6r att ansluta olika typer av acceleratorer: GPU eller FPGA. Den \u00e4r ocks\u00e5 l\u00e4mplig f\u00f6r att skapa system baserade p\u00e5 flera RISC-V-chip.<\/p>\n<p>Protokollet st\u00f6ds redan <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/westerndigitalcorporation\/swerv_eh1\">av SweRV-chips<\/a><\/noindex>, som \u00e4r inriktade p\u00e5 databehandling i datacenter. SweRV \u00e4r en 32-bitars tv\u00e5pipeline superskal\u00e4r processor, tillverkad med 28-nanometers teknik. Varje pipeline har nio niv\u00e5er, vilket g\u00f6r det m\u00f6jligt att ladda och utf\u00f6ra flera instruktioner samtidigt. Enheten arbetar p\u00e5 en frekvens av 1,8 GHz.<\/p>\n<h5>Rocket Chip-generatorn<\/h5>\n<p>\n\u00e4r en l\u00f6sning fr\u00e5n f\u00f6retaget SiFive, som grundades av utvecklarna av RISC-V-teknologin. <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/freechipsproject\/rocket-chip\">Rocket Chip<\/a><\/noindex> \u00e4r en generator av RISC-V-processor k\u00e4rnor skrivna i Chisel. Den <noindex><a rel=\"nofollow\" href=\"https:\/\/www2.eecs.berkeley.edu\/Pubs\/TechRpts\/2016\/EECS-2016-17.pdf\">representerar<\/a><\/noindex> \u00e4r en upps\u00e4ttning parametriserade bibliotek som anv\u00e4nds f\u00f6r att skapa <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>N\u00e4r det g\u00e4ller <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/freechipsproject\/chisel3\/\">Chisel<\/a><\/noindex>, vilket \u00e4r ett h\u00e5rdvarubeskrivningsspr\u00e5k baserat p\u00e5 Scala. Det genererar l\u00e5gniv\u00e5kod i Verilog, vilket <noindex><a rel=\"nofollow\" href=\"https:\/\/chisel.eecs.berkeley.edu\/\">\u00e4r l\u00e4mpligt<\/a><\/noindex> f\u00f6r behandling p\u00e5 ASIC och FPGA. P\u00e5 s\u00e5 s\u00e4tt m\u00f6jligg\u00f6r det anv\u00e4ndning av OOP-principer vid utveckling av <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>Framtiden f\u00f6r alliansen<\/h2>\n<p>\nExperter s\u00e4ger att Linux Foundation-initiativet kommer att g\u00f6ra marknaden f\u00f6r processorer mer demokratisk och \u00f6ppen f\u00f6r nya akt\u00f6rer. Enligt 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\/\">, att en av f\u00f6rdelarna med regelbunden tr\u00e4ning \u00e4r att st\u00e4rka sambanden mellan fysiologiska system (muskul\u00e4ra, kardiovaskul\u00e4ra, nervsystemet) som aktiveras i n\u00f6dsituationer. Genom tr\u00e4ning \"\u00f6var\" kroppen standardreaktionen p\u00e5 stress, vilket g\u00f6r att vi i \"stridssituationer\" kan hantera oss sj\u00e4lva b\u00e4ttre, eftersom kroppen under tr\u00e4ning redan har \"l\u00e4rt sig\" att hantera liknande tillst\u00e5nd.<\/a><\/noindex>, kommer \u00f6kningen av popularitet f\u00f6r s\u00e5dana projekt positivt p\u00e5verka utvecklingen av maskininl\u00e4rningstekniker och AI-system som helhet.<\/p>\n<p><img decoding=\"async\" alt=\"Linux Foundation kommer att arbeta med open source-chip.\" 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> PD<\/i><\/p>\n<p>Utvecklingen av open source processorer kommer ocks\u00e5 att minska kostnaden f\u00f6r design av skr\u00e4ddarsydda chip. Men detta kommer endast att h\u00e4nda om Linux Foundation-gemenskapen lyckas attrahera tillr\u00e4ckligt m\u00e5nga utvecklare.<\/p>\n<h2>Liknande projekt<\/h2>\n<p>\nAndra organisationer arbetar ocks\u00e5 med projekt relaterade till \u00f6ppen h\u00e5rdvara. Ett exempel \u00e4r CXL-konsortiet, som presenterade standarden Compute Express Link i mitten av mars. Teknologin \u00e4r en motsvarighet till OmniXtend och kopplar ocks\u00e5 ihop CPU, GPU, FPGA. F\u00f6r datakommunikation anv\u00e4nder standarden PCIe 5.0-bussen.<\/p>\n<p>Ett annat projekt som arbetar med utveckling av processorsteknologier \u00e4r MIPS Open, som skapades i december 2018. Initiativet grundades av startupen Wave Computing. Utvecklarna planerar <noindex><a rel=\"nofollow\" href=\"https:\/\/wavecomp.ai\/mips-open\/\">att \u00f6ppna<\/a><\/noindex> till IT-gemenskapen tillg\u00e5ng till de senaste 32- och 64-bitars MIPS-instruktionssatserna. Projektets start <noindex><a rel=\"nofollow\" href=\"https:\/\/www.sensorsmag.com\/embedded\/mips-open-advisory-board-open-for-biz\">f\u00f6rv\u00e4ntas<\/a><\/noindex> f\u00f6rv\u00e4ntas ske inom de n\u00e4rmaste m\u00e5naderna.<\/p>\n<p>Generellt sett blir open source-ansatsen allt mer accepterad, inte bara f\u00f6r programvara utan ocks\u00e5 f\u00f6r h\u00e5rdvara. S\u00e5dana projekt st\u00f6ds av stora f\u00f6retag. D\u00e4rf\u00f6r kan man f\u00f6rv\u00e4nta sig att det inom en snar framtid kommer att finnas fler enheter p\u00e5 marknaden baserade p\u00e5 \u00f6ppna h\u00e5rdvarustandarder.<\/p>\n<p>\nDe senaste inl\u00e4ggen fr\u00e5n v\u00e5r f\u00f6retagsblogg:<\/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\/\">Vad du beh\u00f6ver veta om PCI DSS: En \u00f6versikt av standarden<\/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\/\">V\u00e4rlden f\u00f6re och efter. Hur livet f\u00f6r\u00e4ndrades med DNS Flag Day<\/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\/\">Disaster recovery som tj\u00e4nst: vad du beh\u00f6ver veta<\/a><\/noindex><\/li>\n<\/ul>\n<p>\nInl\u00e4gg fr\u00e5n v\u00e5r Telegram-kanal:<\/p>\n<ul>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/201\">Hur man hanterar h\u00e5rdvara i datacentret \u2014 tv\u00e5 nya teknologier<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/194\">Hur en IaaS-leverant\u00f6r skyddar kundernas data<\/a><\/noindex><\/li>\n<li><noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/iaasblog\/190\">Varf\u00f6r beh\u00f6vdes VMware vSphere HTML5-klient?<\/a><\/noindex><\/li>\n<\/ul>\n<p>K\u00e4lla: <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 5.0.4 - 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