On Fri, Jun 10, 2011 at 8:20 AM, Jay Estabrook <jay.estabrook@xxxxxxxxx> wrote: > > Alpha needs to have the system bus address for the device's local > memory available, so that it can be returned to user-level, where > it may be used in an mmap(). So, we make bus.addr hold the ioremap() > return for kernel use, and then we can modify bus.base appropriately. > I don't get this. why is mmap passing in an address? we don't do that anymore. When you mmap the device node it passes back a hashed offset in the table, that the kernel then translates into a proper address and sets up the page tables. So I really don't get what this patch is doing, either the explaination of what it is doing is wrong or it is wrong. Dave. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
