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Asahi Linya (朝日りにゃ〜)'s posts Post Back to profile
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Lorenzo🐧

@1ace Cheers Eric :) Yeah I run my m2 in a _mega_ unstable tip state w/custom kernel and yada yada so I'm happy to rebase and build from source.

Main thing is seeing M2 support in the device tree :>)

25 Nov 2022 at 17:24 | Wall-to-wall | Open on fosstodon.org
16 comments
Asahi Linya (朝日りにゃ〜)

@ljs @1ace You also need m1n1:lina/gpu-wip!

25 Nov 2022 at 17:32 | Open on vt.social
Lorenzo🐧

@lina @1ace Ahhh thanks that's an important one to note!

Thank you very much for your efforts, very much appreciated!

25 Nov 2022 at 17:33 | Open on fosstodon.org
Lorenzo🐧

@lina @1ace is there a config file somewhere to use for the kernel? :) I am messing something up and seeing a freeze on startup unless I enable drm_simpledrm :(

25 Nov 2022 at 19:19 | Open on fosstodon.org
Asahi Linya (朝日りにゃ〜)

@ljs @1ace I have a gist with a config from a few days ago, though today I had to add a bunch of M2 stuff (mostly related to the trackpad/USB since I had some of that turned off for the Mac Mini) but nothing related to video.

Oh, you also need to disable BTI (arm64.nobti)! Rust is broken with that.

25 Nov 2022 at 19:28 | Open on vt.social
Asahi Linya (朝日りにゃ〜)

@ljs @1ace You do have DRM_APPLE, right? That's the display driver ^^

25 Nov 2022 at 19:28 | Open on vt.social
Lorenzo🐧

@lina @1ace I was trying with DRM_APPLE and freeze, then only DRM_ASAHI and also freeze :) it seems to freeze if DRM_SIMPLEDRM is not set.

Do you have a link to that gist (sorry if I'm being lazy here :)?

25 Nov 2022 at 19:30 | Open on fosstodon.org
Asahi Linya (朝日りにゃ〜)

@ljs @1ace Normally you should have all three, but make sure you don't have EFIFB (that one's problematic). The DCP driver (DRM_APPLE) should take over simpledrm. Asahi is the render only GPU driver.

gist.github.com/asahilina/8090

25 Nov 2022 at 19:36 | Open on vt.social
Lorenzo🐧

@lina @1ace Strange it seems like DRM_APPLE doesn't override simpledrm for me. Maybe I'm missing a step? I have an m2 air unless that is one that's unsupported now? 😢

25 Nov 2022 at 19:40 | Open on fosstodon.org
Asahi Linya (朝日りにゃ〜) replied to Lorenzo🐧

@ljs @1ace Check dmesg, it should log if something went wrong. You did update m1n1 together with the device trees from the kernel branch, right? ^^

25 Nov 2022 at 19:42 | Open on vt.social
Lorenzo🐧 replied to Asahi Linya (朝日りにゃ〜)

@lina @1ace dmesg was giving me nothing on drm.

Yeah have updated m1n1 and added dtb files to boot.bin

btw I very much appreciate wasting your time with my stupid laptop issues 🤣 I realise you are doing me a favour here :)

25 Nov 2022 at 19:46 | Open on fosstodon.org
Lorenzo🐧 replied to Asahi Linya (朝日りにゃ〜)

@lina @1ace Oh hang on I may have made a VERY stupid mistake... 🤦 let me report back....

25 Nov 2022 at 20:19 | Open on fosstodon.org
Lorenzo🐧 replied to Lorenzo🐧

@lina @1ace OK so I made a silly mistake of not updating a script to copy the right DRB files to the boot.bin (doh!)

That's fixed now, but getting:-

apple-drm soc:display-subsystem: Failed to add to iommu group 0: -17

25 Nov 2022 at 20:23 | Open on fosstodon.org
Lorenzo🐧 replied to Lorenzo🐧

@lina @1ace OK enabling apple_dart and iommu_io_pgtable_dart seemed to fix that, but now the display doesn't want to be available however drm_apple is loading properly and I get backlight control (yay!) but no gfx as of yet...

still investigating

25 Nov 2022 at 20:51 | Open on fosstodon.org
Lorenzo🐧 replied to Lorenzo🐧

@lina @1ace

Seems 'cannot find any crtc or sizes' is the isue. Also 'RTKit: failed buffer request for 0x10000 bytes' from apple-dcp.

25 Nov 2022 at 21:20 | Open on fosstodon.org
Lorenzo🐧 replied to Lorenzo🐧

@lina @1ace fwiw iova for failed dma alloc is 0x800824000

25 Nov 2022 at 22:32 | Open on fosstodon.org
Lorenzo🐧 replied to Lorenzo🐧

@lina @1ace actually that's the pointer of the field the dma handle is put in haha so not so useful.

Looks like it's

err = rtk->ops->shmem_setup(rtk->cookie, buffer);

That is reporting -ENOMEM.

25 Nov 2022 at 22:54 | Open on fosstodon.org
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