On Tue, May 05, 2015 at 05:18:02PM +0100, Joerg Roedel wrote: > On Tue, Apr 28, 2015 at 03:41:21PM +0800, Yong Wu wrote: > > This patch is for ARM Short Descriptor Format.It has 2-levels > > pagetable and the allocator supports 4K/64K/1M/16M. > > > > Signed-off-by: Yong Wu <[email protected]> > > --- > > drivers/iommu/Kconfig | 7 + > > drivers/iommu/Makefile | 1 + > > drivers/iommu/io-pgtable-arm-short.c | 489 > > +++++++++++++++++++++++++++++++++++ > > drivers/iommu/io-pgtable.c | 4 + > > drivers/iommu/io-pgtable.h | 6 + > > 5 files changed, 507 insertions(+) > > create mode 100644 drivers/iommu/io-pgtable-arm-short.c > > What is the context of this, where will it be used?
I think the MT8173 IOMMU [1] uses this format and, since it's part of the ARM architecture, the ARM SMMU can make use of it too if the implementation supports it. Will [1] http://lists.infradead.org/pipermail/linux-mediatek/2015-March/000058.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
