On Tue, Jun 23, 2015 at 01:28:03PM +0530, Vineet Gupta wrote: > +/* > + * MMIO can also get buffered/optimized in micro-arch, so barriers needed > + * Based on ARM model for the typical use case > + * > + * <writel_relaxed DMA buffer> > + * <writel MMIO "go" reg> > + * or: > + * <readl MMIO "status" reg> > + * <readl_relaxed DMA buffer> > + * > + * http://www.spinics.net/lists/kernel/msg2018397.html http://lkml.kernel.org/r/20150622133656.GG1583@xxxxxxx Might I suggest you use the above link. Since we control kernel.org we have redirect that URL to a archive of our choosing. This keeps the links working even if spinics.net or marc.info were to go belly up. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html