Hi, I'm coding a module that takes from userspace an address pointer, and uses it to fill the memory with some EDMA process.
My problem is that EDMA (fairly) wants a physical address: I usually use dma_map_single() to have returned a physical pointer to do this kind of stuff, but in this case, although, pointer are from user spaces, and so involves mmu. So, the question is: is there a way to use EDMA with (at least one) user space address? Can I know (and how) a physical address given the userspace one? If could make the answer easier: I'm not (ATM) using swap space at all, so pages are surely resident in memory. Thanks, bye! -- Andrea Gasparini ---- ImaVis S.r.l. ---- web: www.imavis.com _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
