{"id":94585,"date":"2020-09-19T01:42:26","date_gmt":"2020-09-18T23:42:26","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/arm-nachinaet-podderzhivat-svobodnyj-drajver-panfrost"},"modified":"2020-09-19T01:42:26","modified_gmt":"2020-09-18T23:42:26","slug":"arm-nachinaet-podderzhivat-svobodnyj-drajver-panfrost","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/arm-nachinaet-podderzhivat-svobodnyj-drajver-panfrost","title":{"rendered":"ARM inizia a supportare il driver libero Panfrost","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Alla conferenza XDC2020 (X.Org Developers Conference) annunciato<\/a><\/noindex> sull'inclusione dell'azienda ARM nel processo di sviluppo del progetto Panfrost<\/a><\/noindex>, che sviluppa un driver open source per i chip grafici Mali. L'azienda ARM ha espresso la sua disponibilit\u00e0<\/a><\/noindex> a fornire agli sviluppatori del driver le informazioni e la documentazione necessarie per una migliore comprensione dell'hardware, concentrandosi sullo sviluppo senza perdere tempo a decifrare enigmi durante il reverse engineering dei driver binari. In precedenza, questo \u00e8 avvenuto con l'inclusione dell'azienda Qualcomm nel lavoro sul progetto Freedreno<\/a><\/noindex>, che sviluppa un driver libero per il GPU Qualcomm Adreno.<\/p>\n

La partecipazione dell'azienda ARM contribuir\u00e0 a portare la stabilit\u00e0 dell'implementazione a una prontezza per l'uso diffuso e garantir\u00e0 un supporto pi\u00f9 completo per le istruzioni interne specifiche per il GPU Mali, mediante la fornitura di informazioni sull'architettura dei chip direttamente dalle fonti. La disponibilit\u00e0 della documentazione interna permetter\u00e0 anche di raggiungere prestazioni ottimali, piena conformit\u00e0 alle specifiche e sfruttamento di tutte le funzionalit\u00e0 disponibili del GPU Midgard e Bifrost.<\/p>\n

Le prime modifiche, preparate sulla base delle informazioni ricevute da ARM, sono gi\u00e0 sono state trasferite<\/a><\/noindex> nel codice sorgente del driver. In particolare,
\n\u00e8 stato svolto un lavoro di normalizzazione delle operazioni di imballaggio delle istruzioni e una completa revisione del disassemblatore, per riflettere pi\u00f9 accuratamente l'architettura dell'insieme di istruzioni GPU Bifrost e conformarsi alla terminologia adottata da ARM.<\/p>\n

Il driver Panfrost \u00e8 stato fondato nel 2018 da Alyssa Rosenzweig, che lavora presso Collabora, e fino ad oggi si \u00e8 evoluto basandosi sul reverse engineering dei driver originali forniti da ARM. Attualmente, il driver supporta i chip basati sulle microarchitetture Midgard (Mali-T6xx, Mali-T7xx, Mali-T8xx) e Bifrost (Mali G3x, G5x, G7x). Per le GPU Mali 400\/450, utilizzate in molti vecchi chip basati sull'architettura ARM, viene sviluppato un driver separato. Lima<\/a><\/noindex>. <\/p>\n


\n
\r\n \"Riproduci\r\n
<\/div>\r\n <\/div><\/center><\/p>\n

<\/a><\/noindex><\/p>\n

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

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