Messages in this thread | | | From | Kumar Gala <> | Subject | Re: [PATCH] ioremap_cached() | Date | Thu, 30 Mar 2006 14:21:32 -0600 |
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On Mar 30, 2006, at 2:17 PM, Andi Kleen wrote:
> On Thursday 30 March 2006 22:14, Matthew Wilcox wrote: > >> I think you misunderstood. The right interface to call, that should >> work everywhere, should be the simple, obvious one. ioremap(). That >> effectively is what everyone gets anyway (since they test on x86). >> So change the *definition* of ioremap() to be uncached. Then we >> can add >> ioremap_wc() and ioremap_cached() for these special purpose mappings. > > That would break all the current users who do ioremap on memory > and want it cached.
What's an example of this? I ask since on powerpc ioremap() is always _PAGE_NO_CACHE.
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