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A comment on Linux Running on Apple M1. Parent comment

Re:Linux Running on Apple M1 by floatboth on Wednesday January 20, 2021 @08:24PM (#25854202)
Both amdgpu and nouveau work absolutely fine on ARM devices, why wouldn't they?!

In fact I made the FreeBSD port of amdgpu work on my Macchiatobin :) Absolutely smooth experience btw, video output works even in UEFI (it actually runs the GOP driver from the card in QEMU), amdgpu works perfectly (played vkquake, supertuxkart, openmw, etc.)

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Re:Linux Running on Apple M1 by duskwuff on Thursday January 21, 2021 @12:06AM (#25855651)
The results reported at [1] had led me to believe that the AMD/NV ARM drivers were still unready. Am I mistaken? Are those issues specific to BCM283x?

[1]: https://www.jeffgeerling.com/blog/2020/external-gpus-and-ras...

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Re:Linux Running on Apple M1 by floatboth on Thursday January 21, 2021 @04:38AM (#25857129)
Yes, the BCMwhatever's weird PCIe controller literally returns corrupted data when the driver tries to read from the card, possibly due to not supporting some kind of 64 bit read.
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