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My understanding (from the work of marcan et al) is that the hardware's there, macOS just doesn't have the drivers. Is there something in the announcement that

• ulzeraj 5y ago
  > My understanding (from the work of marcan et al) is that the hardware's there, macOS just doesn't have the drivers. Jeff Geerling's work on Raspberry Pi modules and extension boards found out its not possible at least on the PI4: From https://www.jeffgeerling.com/blog/2020/external-gpus-and-raspberry-pi-compute-module-4 https://www.jeffgeerling.com/blog/2020/external-gpus-and-ras... "... so far, the answer seems to be 'no.' Partly it's due to lack of support for I/O BAR space on the BCM2711 ARM SoC, and partly it may be due to driver bugs or features that are only supported on X86 or certain ARM architectures." So I wonder when people like Marcan say the hardware is there do they mean that the M1 doesn't have such I/O limitations? I know Tallos Blackbird POWER9 boards can work with discrete GPUs. I don't know if they are making use but I imagine amdgpu kernel module should work just as fine on a different arch. > just a "if they were planning on doing it any time soon, they'd have announced it by now" situation? Yes that's the case.
  • TazeTSchnitzel 5y ago
    The Raspberry Pi has a very different SoC from Apple's M1, why would it be relevant?
    • ulzeraj 5y ago
      I was just wondering if PCI-E discrete GPUs can work on ARM platforms at all.
      • gsnedders 5y ago
        Sure, of course they can, there's nothing about the ISA that's relevant there.