Hi Joerg, On Mon, Jun 6, 2011 at 1:09 PM, Roedel, Joerg <[email protected]> wrote: > The IOMMU-API already supports multiple page-sizes. See the > 'order'-parameter of the map/unmap functions.
This is insufficient; users need somehow to tell what page sizes are supported by the underlying hardware (we can't assume host page-sizes, and we want to use bigger pages whenever possible, to relax the TLB pressure). >> Further generalizing of iovmm strongly depends on our broader plans for >> providing a generic virtual memory manager and allocation framework >> (which, as discussed, should be separated from a specific mapper). > > The generic vmm for DMA is called DMA-API :) Any reason for not using > that (those reasons should be fixed)? This is definitely something we will look into (dspbridge will need it too, not only omap3isp). Thanks, Ohad. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
