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Diffstat (limited to 'arch/x86_64/kernel/pci-swiotlb.c')
-rw-r--r--arch/x86_64/kernel/pci-swiotlb.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86_64/kernel/pci-swiotlb.c b/arch/x86_64/kernel/pci-swiotlb.c
index ebdb77f..6a55f87 100644
--- a/arch/x86_64/kernel/pci-swiotlb.c
+++ b/arch/x86_64/kernel/pci-swiotlb.c
@@ -31,9 +31,10 @@ struct dma_mapping_ops swiotlb_dma_ops = {
void pci_swiotlb_init(void)
{
/* don't initialize swiotlb if iommu=off (no_iommu=1) */
- if (!iommu_detected && !no_iommu &&
- (end_pfn > MAX_DMA32_PFN || force_iommu))
+ if (!iommu_detected && !no_iommu && end_pfn > MAX_DMA32_PFN)
swiotlb = 1;
+ if (swiotlb_force)
+ swiotlb = 1;
if (swiotlb) {
printk(KERN_INFO "PCI-DMA: Using software bounce buffering for IO (SWIOTLB)\n");
swiotlb_init();