Messages in this thread | | | From | Ingo Oeser <> | Subject | Re: [PATCH 3/4] myri10ge - Driver core | Date | Fri, 26 May 2006 11:49:18 +0200 |
| |
Hi there,
Benjamin Herrenschmidt wrote: > 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.
Stupid question: pci_iomap() is NOT what you are looking for, right?
Implementation is at the end of lib/iomap.c
Regards
Ingo Oeser - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |