[PATCH 0/7] amd iommu smart tlb flushing
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From: Joerg Roedel on 11 Feb 2010 09:40 Hi, this patchset implements a smarter io-tlb flushing strategy for the AMD IOMMU driver. The old behavior was to flush only a single 4kb entry or the whole domain io-tlb. This patchset implements book keeping about the ranges of PTEs changed in the page table and flushes only that ranges when the flush is actually done. Joerg Joerg Roedel (7): x86/amd-iommu: Add flush_info to protection domains x86/amd-iommu: Introduce iommu_update_domain_tlb function x86/amd-iommu: Move dte udpate flag into flush_info structure x86/amd-iommu: Move functions to get rid of forward declarations x86/amd-iommu: Add function to commit domain changes x86/amd-iommu: Introduce iommu_update_dma_ops_domain() x86/amd-iommu: Reimplement iommu_flush_tlb_pde using iommu_update_domain_tlb arch/x86/include/asm/amd_iommu_types.h | 13 ++- arch/x86/kernel/amd_iommu.c | 225 ++++++++++++++++---------------- 2 files changed, 124 insertions(+), 114 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |