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AMD IOMMU: add iommu_flush_domain function
Impact: add a function to flush a domain id on every IOMMU Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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9e919012e3
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@ -352,6 +352,30 @@ static void iommu_flush_tlb(struct amd_iommu *iommu, u16 domid)
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iommu_queue_inv_iommu_pages(iommu, address, domid, 0, 1);
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}
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#ifdef CONFIG_IOMMU_API
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/*
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* This function is used to flush the IO/TLB for a given protection domain
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* on every IOMMU in the system
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*/
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static void iommu_flush_domain(u16 domid)
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{
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unsigned long flags;
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struct amd_iommu *iommu;
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struct iommu_cmd cmd;
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__iommu_build_inv_iommu_pages(&cmd, CMD_INV_IOMMU_ALL_PAGES_ADDRESS,
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domid, 1, 1);
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list_for_each_entry(iommu, &amd_iommu_list, list) {
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spin_lock_irqsave(&iommu->lock, flags);
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__iommu_queue_command(iommu, &cmd);
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__iommu_completion_wait(iommu);
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__iommu_wait_for_completion(iommu);
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spin_unlock_irqrestore(&iommu->lock, flags);
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}
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}
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#endif
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/****************************************************************************
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*
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* The functions below are used the create the page table mappings for
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