>> On many platforms, two consequetive __raw_writel()'s might even
>> combine to an atomic 64-bit store to PCI space. :-)
Yes, but that's no guarantee.
>> I don't think the proposed 32-bit behavior is off the mark, and
>> anyways x86 can actually make the 64-bit store I believe if it
>> wants at least on more recent processors.
Surely we wouldn't want to define a new API that can't be supported on
all 32-bit platforms, no? Perhaps writeq_nonatomic()?
--david
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