Messages in this thread | | | Date | Sat, 6 Sep 2014 08:39:51 +1200 | From | Michael Cree <> | Subject | Re: bit fields && data tearing |
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On Fri, Sep 05, 2014 at 04:14:48PM -0400, Peter Hurley wrote: > Second, in the body of the document: > > "The Linux kernel no longer supports pre-EV56 Alpha CPUs, because these > older CPUs _do not provide_ atomic one-byte and two-byte loads and stores."
Let's be clear here, the pre-EV56 Alpha CPUs do provide an atomic one-byte and two-byte load and store; it's just that one must use locked load and store sequences to achieve atomicity. The point, I think, is that the pre-EV56 Alpha CPUs provide non-atomic one-byte and two-byte load and stores as the norm, and that is the problem.
Cheers Michael.
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