iommu: add ARM LPAE page table allocator

[linux-2.6-block.git] / drivers / iommu / io-pgtable.h

diff --git a/drivers/iommu/io-pgtable.h b/drivers/iommu/io-pgtable.h
index fdd792c3769825528b6c443c3e3a9440b7b6beb0..05c4e593a25f68229111dedebdfb71fa530c81c1 100644 (file)
--- a/drivers/iommu/io-pgtable.h
+++ b/drivers/iommu/io-pgtable.h
@@ -5,6 +5,10 @@
  * Public API for use by IOMMU drivers
  */
 enum io_pgtable_fmt {
+       ARM_32_LPAE_S1,
+       ARM_32_LPAE_S2,
+       ARM_64_LPAE_S1,
+       ARM_64_LPAE_S2,
        IO_PGTABLE_NUM_FMTS,
 };
 
@@ -47,6 +51,16 @@ struct io_pgtable_cfg {
 
        /* Low-level data specific to the table format */
        union {
+               struct {
+                       u64     ttbr[2];
+                       u64     tcr;
+                       u64     mair[2];
+               } arm_lpae_s1_cfg;
+
+               struct {
+                       u64     vttbr;
+                       u64     vtcr;
+               } arm_lpae_s2_cfg;
        };
 };