diff options
Diffstat (limited to 'arch/x86/kernel/pci-dma.c')
| -rw-r--r-- | arch/x86/kernel/pci-dma.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index 4b7e3d8b01d..9f07cfcbd3a 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -13,6 +13,7 @@ #include <asm/calgary.h> #include <asm/amd_iommu.h> #include <asm/x86_init.h> +#include <asm/xen/swiotlb-xen.h> static int forbid_dac __read_mostly; @@ -132,7 +133,7 @@ void __init pci_iommu_alloc(void) /* free the range so iommu could get some range less than 4G */ dma32_free_bootmem(); - if (pci_swiotlb_detect()) + if (pci_xen_swiotlb_detect() || pci_swiotlb_detect()) goto out; gart_iommu_hole_init(); @@ -144,6 +145,8 @@ void __init pci_iommu_alloc(void) /* needs to be called after gart_iommu_hole_init */ amd_iommu_detect(); out: + pci_xen_swiotlb_init(); + pci_swiotlb_init(); } @@ -296,7 +299,7 @@ static int __init pci_iommu_init(void) #endif x86_init.iommu.iommu_init(); - if (swiotlb) { + if (swiotlb || xen_swiotlb) { printk(KERN_INFO "PCI-DMA: " "Using software bounce buffering for IO (SWIOTLB)\n"); swiotlb_print_info(); |