Merge git://git.infradead.org/~dwmw2/iommu-2.6.31

[pandora-kernel.git] / arch / x86 / kernel / pci-swiotlb.c

diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index a1712f2..6af96ee 100644 (file)
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -71,7 +71,8 @@ void __init pci_swiotlb_init(void)
 {
        /* don't initialize swiotlb if iommu=off (no_iommu=1) */
 #ifdef CONFIG_X86_64
-       if (!iommu_detected && !no_iommu && max_pfn > MAX_DMA32_PFN)
+       if ((!iommu_detected && !no_iommu && max_pfn > MAX_DMA32_PFN) ||
+               iommu_pass_through)
               swiotlb = 1;
 #endif
        if (swiotlb_force)