On Thu, Mar 30, 2006 at 08:57:52AM +0100, Russell King wrote: > On Thu, Mar 30, 2006 at 12:54:10AM -0700, Grant Grundler wrote: > > Am I correct that serial also wants _nocache() for MMIO space? > > Don't know - I've always taken ioremap_nocache() as a mis-understanding > of what ioremap() itself is supposed to do. Indeed, if you look at > IO-mapping.txt, ioremap_nocache() is not mentioned, and it's pretty > clear that ioremap() is what is intended to be used to map MMIO. I think IO-mapping.txt is stale and whoever added ioremap_nocache failed to update it. It would be reasonable to ignore my patch (unless you wanted to document the expected behavior of serial) if what willy proposed an hour ago is accepted: http://lkml.org/lkml/2006/3/30/251 I'll update the IO-mapping.txt based on the outcome of willy's patch. thanks, grant - To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
