diff options
Diffstat (limited to 'arch/x86_64/kernel/pci-swiotlb.c')
| -rw-r--r-- | arch/x86_64/kernel/pci-swiotlb.c | 5 |
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 ebdb77fe205..6a55f87ba97 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(); |