Merge branches 'core/signal' and 'x86/spinlocks' into x86/xen

[safe/jmp/linux-2.6] / arch / x86 / kernel / pci-swiotlb_64.c

diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c
index b2f405e..c4ce033 100644 (file)
--- a/arch/x86/kernel/pci-swiotlb_64.c
+++ b/arch/x86/kernel/pci-swiotlb_64.c
@@ -10,13 +10,19 @@
 #include <asm/dma.h>
 
 int swiotlb __read_mostly;
-EXPORT_SYMBOL(swiotlb);
 
-const struct dma_mapping_ops swiotlb_dma_ops = {
+static dma_addr_t
+swiotlb_map_single_phys(struct device *hwdev, phys_addr_t paddr, size_t size,
+                       int direction)
+{
+       return swiotlb_map_single(hwdev, phys_to_virt(paddr), size, direction);
+}
+
+struct dma_mapping_ops swiotlb_dma_ops = {
        .mapping_error = swiotlb_dma_mapping_error,
        .alloc_coherent = swiotlb_alloc_coherent,
        .free_coherent = swiotlb_free_coherent,
-       .map_single = swiotlb_map_single,
+       .map_single = swiotlb_map_single_phys,
        .unmap_single = swiotlb_unmap_single,
        .sync_single_for_cpu = swiotlb_sync_single_for_cpu,
        .sync_single_for_device = swiotlb_sync_single_for_device,
@@ -32,7 +38,7 @@ const struct dma_mapping_ops swiotlb_dma_ops = {
 void __init pci_swiotlb_init(void)
 {
        /* don't initialize swiotlb if iommu=off (no_iommu=1) */
-       if (!iommu_detected && !no_iommu && end_pfn > MAX_DMA32_PFN)
+       if (!iommu_detected && !no_iommu && max_pfn > MAX_DMA32_PFN)
               swiotlb = 1;
        if (swiotlb_force)
                swiotlb = 1;