Messages in this thread | | | Date | Sat, 14 Aug 1999 19:05:43 +0200 | From | Jamie Lokier <> | Subject | Re: New resources - pls, explain :-( |
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Linus Torvalds wrote: > - writel() - strict ordering > - __writel() - only to be used for people who REALLY know that they don't > care about ordering.
As a bonus, it can actually be more efficient for writel() to implement ordering instead of explicit barriers in the driver.
How so? See type aliasing rules...
-- Jamie
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