{"id":100740,"date":"2021-07-12T04:22:42","date_gmt":"2021-07-12T02:22:43","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/gotov-k-proizvodstvu-pervyj-prototip-otkrytogo-chipa-libre-soc"},"modified":"2021-07-12T04:22:42","modified_gmt":"2021-07-12T02:22:43","slug":"gotov-k-proizvodstvu-pervyj-prototip-otkrytogo-chipa-libre-soc","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/gotov-k-proizvodstvu-pervyj-prototip-otkrytogo-chipa-libre-soc","title":{"rendered":"Prvi prototip otvorenog \u010dipa Libre-SOC je spreman za proizvodnju.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Projekt Libre-SOC razvija otvoreni \u010dip s implementacijom hibridne arhitekture poput CDC 6600, gdje su CPU, VPU i GPU instrukcije spojene u jedan ISA kako bi se smanjila veli\u010dina i slo\u017eenost \u010dipa, te je postigao fazu prijenosa u proizvodnju prvog testnog uzorka. Prvotno se projekt razvijao pod imenom Libre RISC-V, ali je preimenovan u Libre-SOC nakon odluke da se RISC-V zamjeni kori\u0161tenjem arhitekture skupa instrukcija (ISA) OpenPOWER 3.0. <\/p>\n

Projekt ima za cilj kreirati potpuno otvoreni sustav na \u010dipu (SoC) bez potrebe za licencnim naknadama, koji se mo\u017ee koristiti u jednoplo\u010dnim ra\u010dunalima, netbookovima i raznim prijenosnim ure\u0111ajima. Osim uobi\u010dajenih instrukcija CPU-a i registara op\u0107e namjene, Libre-SOC u jednom funkcionalnom bloku procesora pru\u017ea mogu\u0107nosti za izvr\u0161avanje vektorskih operacija i specijaliziranih izra\u010duna, karakteristi\u010dnih za VPU i GPU. \u010cip koristi arhitekturu skupa instrukcija OpenPOWER, pro\u0161irenje Simple-V s instrukcijama za vektorizaciju i paralelnu obradu podataka, kao i specijalizirane instrukcije za konverziju u ARGB te izvo\u0111enje tipi\u010dnih 3D operacija. <\/p>\n

GPU instrukcije su usmjerene na kori\u0161tenje s grafi\u010dkim API Vulkan, dok je VPU fokusiran na ubrzanje konverzije YUV-RGB i dekodiranja formata MPEG1\/2, MPEG4 ASP (xvid), H.264, H.265, VP8, VP9, AV1, MP3, AC3, Vorbis i Opus. Za Mesa se razvija slobodni drajver koji iskori\u0161tava mogu\u0107nosti Libre-SOC za pru\u017eanje hardverski ubrzane programske realizacije grafi\u010dkog API Vulkan. Na primjer, Vulkan \u0161ejderi mogu biti prevodeni pomo\u0107u JIT motora za izvr\u0161avanje s dostupnim specijaliziranim instrukcijama u Libre-SOC. <\/p>\n

U sljede\u0107em testnom prototipu planira se implementirati pro\u0161irenje SVP64 (Pove\u0107ana du\u017eina vektorizacije), koje \u0107e omogu\u0107iti kori\u0161tenje Libre-SOC-a kao vektorskog procesora (uz 32 64-bitna registra op\u0107e namjene, bit \u0107e dostupno 128 registara za vektorske izra\u010dune). Prvi prototip uklju\u010duje samo jedno jezgro koje radi na frekvenciji od 300 Mhz, ali se unutar dvije godine planira izraditi verzija s 4 jezgre, zatim 8-jezgrena, a u dugoro\u010dnom planu i 64-jezgrena. <\/p>\n

Prva serija \u010dipa bit \u0107e proizvedena u tvrtki TSMC koriste\u0107i proces proizvodnje od 180nm. Svi materijali projekta objavljuju se pod slobodnim licencama, uklju\u010duju\u0107i datoteke u GDS-II formatu koje sadr\u017ee potpunu topologiju \u010dipa, potrebnu za pokretanje vlastite proizvodnje. Libre-SOC bit \u0107e prvi potpuno neovisni \u010dip temeljen na Power arhitekturi, proizveden ne od strane IBM-a. Tijekom razvoja kori\u0161ten je jezik za opis hardvera nMigen (HDL temeljen na Pythonu, bez kori\u0161tenja VHDL-a i Verilog-a), biblioteke standardnih \u0107elija FlexLib iz projekta Chips4Makers i slobodni VLSI alati Coriolis2 za pretvorbu iz HDL-a u GDS-II. <\/p>\n

Razvoj Libre-SOC-a financiran je od strane NLnet Foundation, koja je dodijelila 400 tisu\u0107a eura za izradu potpuno otvorenog \u010dipa u okviru programa za razvoj verifikabilnih i pouzdanih temelja tehni\u010dkih rje\u0161enja. \u010cip ima dimenzije 5,5 x 5,9 mm i uklju\u010duje 130 tisu\u0107a logi\u010dkih sklopki. Sastoji se od \u010detiri SRAM modula od 4 kB i 300 MHz PLL blok za automatsko pode\u0161avanje frekvencije.

\"Prvi<\/center>
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Izvor: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u0440\u043e\u0435\u043a\u0442 Libre-SOC, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0438\u0439 \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0439 \u0447\u0438\u043f \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0433\u0438\u0431\u0440\u0438\u0434\u043d\u043e\u0439 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u0432 \u0441\u0442\u0438\u043b\u0435 CDC 6600, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0434\u043b\u044f \u0443\u043c\u0435\u043d\u044c\u0448\u0435\u043d\u0438\u044f \u0440\u0430\u0437\u043c\u0435\u0440\u0430 \u0438 \u0441\u043b\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0447\u0438\u043f\u0430 \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438 CPU, VPU \u0438 GPU \u043d\u0435 \u0440\u0430\u0437\u0434\u0435\u043b\u0435\u043d\u044b \u0438 \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u044b \u0432 \u043e\u0434\u043d\u043e\u043c ISA, \u0434\u043e\u0441\u0442\u0438\u0433 \u0441\u0442\u0430\u0434\u0438\u0438 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0432 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u043e \u043f\u0435\u0440\u0432\u043e\u0433\u043e \u0442\u0435\u0441\u0442\u043e\u0432\u043e\u0433\u043e \u043e\u0431\u0440\u0430\u0437\u0446\u0430. \u0418\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e \u043f\u0440\u043e\u0435\u043a\u0442 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u043b\u0441\u044f \u043f\u043e\u0434 \u0438\u043c\u0435\u043d\u0435\u043c Libre RISC-V, \u043d\u043e \u0431\u044b\u043b \u043f\u0435\u0440\u0435\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d \u0432 Libre-SOC \u043f\u043e\u0441\u043b\u0435 \u0440\u0435\u0448\u0435\u043d\u0438\u044f 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