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    SubjectRe: [PATCH] Define wc_wmb, a write barrier for PCI write combining
    linux-os (Dick Johnson) wrote:

    > Also, the
    > PCI bus is a FIFO. Nothing gets reordered.

    The CPU itself can reorder the write before it hits the PCI bus. I
    don't think x86 will do this, but others will.

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      Last update: 2006-02-28 19:27    [W:0.021 / U:10.624 seconds]
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