x86/amd-iommu: Make fetch_pte aware of dynamic mapping levels
This patch changes the fetch_pte function in the AMD IOMMU
driver to support dynamic mapping levels.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h
index 0c878ca..7fce4ef 100644
--- a/arch/x86/include/asm/amd_iommu_types.h
+++ b/arch/x86/include/asm/amd_iommu_types.h
@@ -146,12 +146,21 @@
#define PAGE_MODE_1_LEVEL 0x01
#define PAGE_MODE_2_LEVEL 0x02
#define PAGE_MODE_3_LEVEL 0x03
+#define PAGE_MODE_4_LEVEL 0x04
+#define PAGE_MODE_5_LEVEL 0x05
+#define PAGE_MODE_6_LEVEL 0x06
#define IOMMU_PDE_NL_0 0x000ULL
#define IOMMU_PDE_NL_1 0x200ULL
#define IOMMU_PDE_NL_2 0x400ULL
#define IOMMU_PDE_NL_3 0x600ULL
+#define PM_LEVEL_SHIFT(x) (12 + ((x) * 9))
+#define PM_LEVEL_SIZE(x) (((x) < 6) ? \
+ ((1ULL << PM_LEVEL_SHIFT((x))) - 1): \
+ (0xffffffffffffffffULL))
+#define PM_LEVEL_INDEX(x, a) (((a) >> PM_LEVEL_SHIFT((x))) & 0x1ffULL)
+
#define IOMMU_PTE_L2_INDEX(address) (((address) >> 30) & 0x1ffULL)
#define IOMMU_PTE_L1_INDEX(address) (((address) >> 21) & 0x1ffULL)
#define IOMMU_PTE_L0_INDEX(address) (((address) >> 12) & 0x1ffULL)