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Implement a CpuBarrierLib and use it #19

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andreiw opened this issue Jan 27, 2024 · 1 comment
Open

Implement a CpuBarrierLib and use it #19

andreiw opened this issue Jan 27, 2024 · 1 comment

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@andreiw
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andreiw commented Jan 27, 2024 •
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Any cpu fences/barriers are implied by Map/Unmap and Reg access code. If code uses common buffer operations, it would need to explicitly use barriers/fences on architectures requiring these.
@andreiw andreiw changed the title Add CommonBufferDmaBarrier function to EFI_DT_IO_PROTOCOL Implement a CpuBarrierLib and use it Feb 2, 2024
@andreiw
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andreiw commented Feb 2, 2024 •
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Add barriers of the form:

KindBeforeBarrierAfter(), e.g. MmioReadBarrierWrite (), DmaReadWriteBarrierWrite () etc.

@andreiw andreiw mentioned this issue Mar 5, 2024
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@andreiw