On Fri, Oct 14, 2011 at 08:31:45PM +0200, Hans J. Koch wrote: > On Thu, Oct 13, 2011 at 10:50:58AM -0500, Kumar Gala wrote: > > From: Kai Jiang <kai.ji...@freescale.com> > > > > To support >32-bit physical addresses for UIO_MEM_PHYS type we need to > > extend the width of 'addr' in struct uio_mem. Numerous platforms like > > embedded PPC, ARM, and X86 have support for systems with larger physical > > address than logical. > > > > Since 'addr' may contain a physical, logical, or virtual address the > > easiest solution is to just change the type to 'phys_addr_t' which > > should always be greater than or equal to the sizeof(void *) such that > > it can properly hold any of the address types. > > > > For physical address we can support up to a 44-bit physical address on a > > typical 32-bit system as we utilize remap_pfn_range() for the mapping of > > the memory region and pfn's are represnted by shifting the address by > > the page size (typically 4k). > > > > Signed-off-by: Kai Jiang <kai.ji...@freescale.com> > > Signed-off-by: Minghuan Lian <minghuan.l...@freescale.com> > > Signed-off-by: Kumar Gala <ga...@kernel.crashing.org> > > Signed-off-by: "Hans J. Koch" <h...@hansjkoch.de> > > That looks good to me. There's an unnecessary cast (see below), but I fixed > that > on the way. > > Greg, please pull this from branch uio-for-gregkh from > > git://hansjkoch.de/git/linux-hjk
Care to send it as an email? I can apply it easier that way as I have limited internet access while on the road. greg k-h _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
