On Thu, Apr 14, 2016 at 11:59:29AM +0100, Tvrtko Ursulin wrote: > From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> > > We know ringbuffers are memory and not ports so if we use readl > and writel instead of ioread32 and iowrite32 (which dispatch to > the very same functions after checking the address range) we > avoid generating functions calls and branching on every access. We don't need to use readl/write at all, since they are normal memory on llc, and on x86 we can pretend that iomaps (!llc/stolen) are as well. This patch is in the queue along with killing the incorrect spare iomem annotation. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
