diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/pci-dma.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index afcc58b..fcc2f2b 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -120,11 +120,14 @@ static void __init dma32_free_bootmem(void) void __init pci_iommu_alloc(void) { + int use_swiotlb; + + use_swiotlb = pci_swiotlb_init(); #ifdef CONFIG_X86_64 /* free the range so iommu could get some range less than 4G */ dma32_free_bootmem(); #endif - if (pci_swiotlb_init()) + if (use_swiotlb) return; gart_iommu_hole_init(); |
