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GPU driver can technically be userland too. Look at what Apple has done in recent years. kexts (kernel-level drivers) are basically all but unsupported today,
by sgjohnson 2y ago
GPU driver can technically be userland too.
Look at what Apple has done in recent years. kexts (kernel-level drivers) are basically all but unsupported today, and both DriverKit and IOKit are fully userland.
- throwaway48476 2y agoPerformance critical drivers are always going to be kernel mode.