Messages in this thread |  | | Subject | Re: [PATCH 3/4] myri10ge - Driver core | From | Benjamin Herrenschmidt <> | Date | Thu, 25 May 2006 17:56:49 +1000 |
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On Wed, 2006-05-24 at 01:39 +1000, Anton Blanchard wrote:
> > +#ifdef CONFIG_MTRR > > + mgp->mtrr = mtrr_add(mgp->iomem_base, mgp->board_span, > > + MTRR_TYPE_WRCOMB, 1); > > +#endif > ... > > + mgp->sram = ioremap(mgp->iomem_base, mgp->board_span); > > Not sure how we are meant to specify write through in drivers. Any ideas Ben?
No proper interface exposed, he'll have to do an #ifdef powerpc here or such and use __ioremap with explicit page attributes. I have a hack to do that automatically for memory covered by prefetchable PCI BARs when mmap'ing from userland but not for kernel ioremap.
Ben.
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