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The initial posting of the Apple AGX graphics driver
source link: https://lwn.net/Articles/925503/
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The initial posting of the Apple AGX graphics driver [LWN.net]
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The initial posting of the Apple AGX graphics driver
[Posted March 7, 2023 by corbet]
Asahi Lina has posted an
initial version of a Rust-based driver for Apple AGX graphics
processors; the posting includes a fair amount of Rust infrastructure for
graphics drivers in general.
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While developing the driver, I tried to make use of Rust's safety and lifetime features to provide not just CPU-side safety, but also partial firmware-ABI safety. Thanks to this, it has turned out to be a very stable driver even though GPU firmware crashes are fatal (no restart capability, need to reboot!) and the FW/driver interface is a huge mess of unsafe shared memory structures with complex pointer chains.
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