Hi Alexander, On Fri, Oct 12, 2012 at 4:34 AM, Alexander Duyck <alexander.h.du...@intel.com> wrote: > This change replaces all references to the virtual address for io_tlb_end > with references to the physical address io_tlb_end. The main advantage of > replacing the virtual address with a physical address is that we can avoid > having to do multiple translations from the virtual address to the physical > one needed for testing an existing DMA address. > > Signed-off-by: Alexander Duyck <alexander.h.du...@intel.com> > --- > > lib/swiotlb.c | 24 +++++++++++++----------- > 1 files changed, 13 insertions(+), 11 deletions(-) > > diff --git a/lib/swiotlb.c b/lib/swiotlb.c > index f114bf6..19aac9f 100644 > --- a/lib/swiotlb.c > +++ b/lib/swiotlb.c > @@ -57,7 +57,8 @@ int swiotlb_force; > * swiotlb_tbl_sync_single_*, to see if the memory was in fact allocated by > this > * API. > */ > -static char *io_tlb_start, *io_tlb_end; > +static char *io_tlb_start; > +phys_addr_t io_tlb_end;
If add io_tlb_start_phy and io_tlb_end_phy, could we get same results with less hunks? Hillf -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
