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| author |   Joerg Roedel <joerg.roedel@amd.com> | 2009-09-02 17:08:55 +0200 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-09-03 16:03:42 +0200 |
| commit | a6d41a4027b758a9473197a78fab45afb31003aa (patch) | |
| tree | 4b80b62f33819494b4c0fe9a446a0ee8c78cfcc2 /arch/x86/kernel/amd_iommu.c | |
| parent | x86/amd-iommu: Use fetch_pte in iommu_unmap_page (diff) | |
| download | linux-dev-a6d41a4027b758a9473197a78fab45afb31003aa.tar.xz linux-dev-a6d41a4027b758a9473197a78fab45afb31003aa.zip | |
x86/amd-iommu: Use fetch_pte in amd_iommu_iova_to_phys
Don't reimplement the page table walker in this function.
Use the generic one.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/kernel/amd_iommu.c')
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 5e5279899994..4a54366d422d 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -2140,21 +2140,9 @@ static phys_addr_t amd_iommu_iova_to_phys(struct iommu_domain *dom, phys_addr_t paddr; u64 *pte; - pte = &domain->pt_root[IOMMU_PTE_L2_INDEX(iova)]; + pte = fetch_pte(domain, iova); - if (!IOMMU_PTE_PRESENT(*pte)) - return 0; - - pte = IOMMU_PTE_PAGE(*pte); - pte = &pte[IOMMU_PTE_L1_INDEX(iova)]; - - if (!IOMMU_PTE_PRESENT(*pte)) - return 0; - - pte = IOMMU_PTE_PAGE(*pte); - pte = &pte[IOMMU_PTE_L0_INDEX(iova)]; - - if (!IOMMU_PTE_PRESENT(*pte)) + if (!pte || !IOMMU_PTE_PRESENT(*pte)) return 0; paddr = *pte & IOMMU_PAGE_MASK; |