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Date: Fri, 4 Sep 2009 11:40:41 +0200 From: Joerg Roedel <joerg.roedel@....com> To: iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org CC: Joerg Roedel <joerg.roedel@....com> Subject: [PATCH 03/14] 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@....com> --- 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 5e52798..4a54366 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; -- 1.6.3.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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