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| author | Joerg Roedel | 2009-09-03 11:33:51 +0200 |
|---|---|---|
| committer | Joerg Roedel | 2009-09-03 16:11:17 +0200 |
| commit | abdc5eb3d69279039ba6cb89719913d08013ab14 (patch) | |
| tree | fc77040a85d9601d91c6dee0e297386a3f5f7ccc /arch/x86/include/asm/amd_iommu_types.h | |
| parent | x86/amd-iommu: Support higher level PTEs in iommu_page_unmap (diff) | |
| download | kernel-qcow2-linux-abdc5eb3d69279039ba6cb89719913d08013ab14.tar.gz kernel-qcow2-linux-abdc5eb3d69279039ba6cb89719913d08013ab14.tar.xz kernel-qcow2-linux-abdc5eb3d69279039ba6cb89719913d08013ab14.zip | |
x86/amd-iommu: Change iommu_map_page to support multiple page sizes
This patch adds a map_size parameter to the iommu_map_page
function which makes it generic enough to handle multiple
page sizes. This also requires a change to alloc_pte which
is also done in this patch.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/include/asm/amd_iommu_types.h')
| -rw-r--r-- | arch/x86/include/asm/amd_iommu_types.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h index 351ca39ece05..9e8bb9746dcf 100644 --- a/arch/x86/include/asm/amd_iommu_types.h +++ b/arch/x86/include/asm/amd_iommu_types.h @@ -160,6 +160,12 @@ IOMMU_PTE_P | IOMMU_PTE_IR | IOMMU_PTE_IW) #define PM_PTE_LEVEL(pte) (((pte) >> 9) & 0x7ULL) +#define PM_MAP_4k 0 +#define PM_ADDR_MASK 0x000ffffffffff000ULL +#define PM_MAP_MASK(lvl) (PM_ADDR_MASK & \ + (~((1ULL << (12 + ((lvl) * 9))) - 1))) +#define PM_ALIGNED(lvl, addr) ((PM_MAP_MASK(lvl) & (addr)) == (addr)) + #define IOMMU_PTE_P (1ULL << 0) #define IOMMU_PTE_TV (1ULL << 1) #define IOMMU_PTE_U (1ULL << 59) |