On Thu, Aug 12, 2010 at 8:28 PM, Hari Kanigeri <hari.kanigeri@xxxxxxxxx> wrote: >> Also I believe that the new Contiguous Memory Allocation (CMA) >> framework was developed specifically for systems that need to allocate >> physically contiguous memory because they don't have an MMU. What (edit) "... because they don't have an _IO_MMU." >> would say to avoiding the IOMMU requirement and keeping DMM by using >> physically contiguous dynamically allocated memory regions like those >> provided by the new CMA [2]? >> > > Just curious as how CMA is different from Android's pmem. I'm not really sure, but based on the discussion in one of the pmem patches proposed on lkml [1] they seem to provide similar functionality. Perhaps the difference is that pmem has made it to staging whereas CMA is only a proposed feature so far? Best Regards, Ben Gardiner [1] https://patchwork.kernel.org/patch/47513/ --- Nanometrics Inc. http://www.nanometrics.ca -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
