diff options
Diffstat (limited to 'arch/x86_64/kernel/pci-swiotlb.c')
| -rw-r--r-- | arch/x86_64/kernel/pci-swiotlb.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/x86_64/kernel/pci-swiotlb.c b/arch/x86_64/kernel/pci-swiotlb.c index 990ed67896f2..697f0aa794b9 100644 --- a/arch/x86_64/kernel/pci-swiotlb.c +++ b/arch/x86_64/kernel/pci-swiotlb.c @@ -3,7 +3,8 @@ #include <linux/pci.h> #include <linux/cache.h> #include <linux/module.h> -#include <asm/dma-mapping.h> +#include <linux/dma-mapping.h> + #include <asm/proto.h> #include <asm/swiotlb.h> #include <asm/dma.h> @@ -31,9 +32,10 @@ struct dma_mapping_ops swiotlb_dma_ops = { void pci_swiotlb_init(void) { /* don't initialize swiotlb if iommu=off (no_iommu=1) */ - if (!iommu_aperture && !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(); |
