Labarin ya fito kwanan nan cewa a cikin mangaza wanda kernel saki na Linux 5.19 ya sami wani saitin canje-canje masu alaƙa da tsarin tsarin DRM (Direct Rendering Manager) da direbobi masu hoto.
Saitin faci karɓa yana da ban sha'awa saboda ya haɗa da layin code 495k, wanda yayi daidai da jimlar girman canje-canje a cikin kowane reshen kwaya (misali, an ƙara layukan lamba 506k a cikin kernel 5.17).
hello linus
Wannan shine babban buƙatar jawo Drm don 5.19-rc1.
Takaitacciyar taƙaitawa a ƙasa, Intel ya kunna DG2 akan wasu SKUs na kwamfutar tafi-da-gidanka,
AMD ta fara sabon tallafin GPU, msm ya sanya mai amfani da sarrafa VA.Rikici:
Na haɗu da bishiyar ku a nan 'yan sa'o'i da suka wuce, akwai rikice-rikice na i915 guda biyu
amma sun kasance masu sauƙin warwarewa don haka ina tsammanin za ku iya magance su.Babu abubuwa da yawa a wajen mulkina a nan.
Kamar yadda aka saba sanar dani idan akwai wata matsala,
An ambaci cewa a cikin facin da aka karɓa kusan layukan 400 sun haɗa tara zo daga fayilolin ASIC rajistar bayanan bayanan Ana haifar da ta atomatik a cikin direban AMD GPU.
Baya ga wannan, an kuma yi nuni da cewa wani layin 22,5 dubu yana ba da farkon aiwatar da tallafin AMD SoC21. Jimlar girman direban AMD GPU ya wuce layin lamba miliyan 4 (don kwatanta, duka Linux 1.0 kernel sun haɗa da layin lamba 176, 2,0 - 778, 2,4 - 3,4 miliyan, 5,13 - 29,2 miliyan). Baya ga SoC21, direban AMD ya haɗa da tallafi don SMU 13.x (Sashin Gudanar da Tsari), tallafi da aka sabunta don USB-C da GPUVM, kuma yana shirye don tallafawa ƙarni na gaba na RDNA3 (RX 7000) da CDNA (Ilimin AMD) .
A cikin direban Intel, mafi yawan canje-canje (5,6 dubu) yana cikin lambar sarrafa wutar lantarki. Hakanan an ƙara ID ɗin direba na Intel don Intel DG2 (Arc Alchemist) GPUs da aka yi amfani da su a cikin kwamfyutocin kwamfyutoci, sun ba da tallafi na farko don Intel Raptor Platform Lake-P (RPL-P), ƙarin bayani game da katunan zane-zane na Arctic Sound-M, aiwatar da ABI don ƙididdige injuna, ƙara goyon bayan tsarin Tile4 don katunan DG2, aiwatar da tallafin DisplayPort HDR don tsarin dangane da Haswell microarchitecture.
Duk da yake a bangaren nouveau controller, jimla, sauye-sauyen sun shafi layukan lamba kusan ɗari (an yi canji don amfani da drm_gem_plane_helper_prepare_fb direba, amfani da ƙayyadaddun ƙwaƙwalwar ajiya don wasu sifofi da masu canji). Dangane da amfani da buɗaɗɗen mabuɗin kernel na Nouveau ta NVIDIA, aikin ya zuwa yanzu an rage shi zuwa ganowa da cire kwari. A nan gaba, an shirya yin amfani da firmware da aka saki don inganta aikin mai sarrafawa.
Idan kuna son ƙarin sani game da canje-canjen da aka gabatar don sigar Linux 5.19 na gaba, zaku iya tuntuɓar cikakkun bayanai a cikin bin hanyar haɗi.
Karshe amma ba kadan ba, Har ila yau yana da kyau a ambata cewa kwanan nan an gano wani rauni (CVE-2022-1729) a cikin Linux kernel wanda zai iya ba da damar mai amfani da gida don samun tushen tushen tsarin.
Ularfafawa yana faruwa ne sakamakon yanayin tsere a cikin tsarin tsarin perf, wanda za'a iya amfani dashi don fara samun damar zuwa wurin da aka riga aka 'yantar na ƙwaƙwalwar kernel (amfani-bayan-kyauta). Matsalar ta bayyana tun lokacin da aka saki kernel 4.0-rc1. An tabbatar da amfani ga nau'ikan 5.4.193+.
wannan sanarwar ce ta rashin lafiyar da aka ruwaito kwanan nan (CVE-2022-1729) a cikin tsarin tsarin perf. na Linux kernel. Matsalar ita ce yanayin tseren da aka nuna don ba da damar gata na gida haɓakawa zuwa tushen kernel na yanzu>= 5.4.193, amma da alama kwaro yana wanzu daga kwaya sigar 4.0-rc1 (faci yana gyara aikin wannan sigar).
Abin farin ciki, manyan rabe-raben Linux galibi suna ƙuntata amfani da perf ga masu amfani marasa gata ta saita sysctl m kernel.perf_event_paranoid>= 3, yana wakiltar yadda ya kamata. rashin lahani mara lahani.
Gyaran yana samuwa kawai azaman faci. Haɗarin raunin yana raguwa ta gaskiyar cewa yawancin rarrabawa suna iyakance damar yin amfani da perf ga masu amfani da ba su da gata ta tsohuwa. A matsayin gyaran tsaro, zaku iya saita ma'aunin sysctl kernel.perf_event_paranoid zuwa 3.