Messages in this thread | | | Date | Sun, 15 Aug 1999 03:34:28 +0200 | From | Ralf Baechle <> | Subject | Re: New resources - pls, explain :-( |
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On Fri, Aug 13, 1999 at 03:00:10PM +1000, Paul Mackerras wrote:
> In your opinion, should there be a guarantee that accesses initiated > by readl/writel/etc. will not be reordered? > > Alternatively, should device driver writers be required to put in an > explicit statement (mb() or something similar) when they use > readl/writel/etc. and want to prevent the accesses being reordered?
MIPS R3000 requires explicit flushing of write buffers anyway, so making that explicit and not hidden inside write[bwl]() would be handy.
Ralf
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