Messages in this thread Patch in this message | | | From | Joerg Roedel <> | Subject | [PATCH 5/7] x86/amd-iommu: Add function to commit domain changes | Date | Thu, 11 Feb 2010 15:33:15 +0100 |
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This patch adds the function iommu_update_domain() which makes sure that the hardware caches are in sync with the software changes. This function is used in the iommu-api path.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> --- arch/x86/kernel/amd_iommu.c | 15 +++++++++------ 1 files changed, 9 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index bda00f0..4063f55 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -761,6 +761,13 @@ static void iommu_update_domain_dte(struct protection_domain *domain) domain->flush.dte = false; } +static void iommu_update_domain(struct protection_domain *domain) +{ + iommu_update_domain_dte(domain); + iommu_update_domain_tlb(domain, false); + iommu_flush_complete(domain); +} + /**************************************************************************** * * The functions below are used the create the page table mappings for @@ -899,8 +906,6 @@ static int iommu_map_page(struct protection_domain *dom, *pte = __pte; - iommu_update_domain_dte(dom); - return 0; } @@ -2495,8 +2500,7 @@ static int amd_iommu_map_range(struct iommu_domain *dom, if (unlikely(amd_iommu_np_cache)) update_flush_info_tlb(domain, iova, iova + size); - iommu_update_domain_tlb(domain, true); - iommu_flush_complete(domain); + iommu_update_domain(domain); return 0; } @@ -2517,8 +2521,7 @@ static void amd_iommu_unmap_range(struct iommu_domain *dom, update_flush_info_tlb(domain, iova, iova + size); - iommu_update_domain_tlb(domain, true); - iommu_flush_complete(domain); + iommu_update_domain(domain); } static phys_addr_t amd_iommu_iova_to_phys(struct iommu_domain *dom, -- 1.6.6
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