aboutsummaryrefslogtreecommitdiffstats
path: root/linux-2.6-xen-sparse/arch/x86_64/kernel/pci-swiotlb-xen.c
diff options
context:
space:
mode:
Diffstat (limited to 'linux-2.6-xen-sparse/arch/x86_64/kernel/pci-swiotlb-xen.c')
-rw-r--r--linux-2.6-xen-sparse/arch/x86_64/kernel/pci-swiotlb-xen.c55
1 files changed, 0 insertions, 55 deletions
diff --git a/linux-2.6-xen-sparse/arch/x86_64/kernel/pci-swiotlb-xen.c b/linux-2.6-xen-sparse/arch/x86_64/kernel/pci-swiotlb-xen.c
deleted file mode 100644
index eed643c114..0000000000
--- a/linux-2.6-xen-sparse/arch/x86_64/kernel/pci-swiotlb-xen.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/* Glue code to lib/swiotlb.c */
-
-#include <linux/pci.h>
-#include <linux/cache.h>
-#include <linux/module.h>
-#include <asm/dma-mapping.h>
-#include <asm/proto.h>
-#include <asm/swiotlb.h>
-#include <asm/dma.h>
-
-#if 0
-int swiotlb __read_mostly;
-EXPORT_SYMBOL(swiotlb);
-#endif
-
-struct dma_mapping_ops swiotlb_dma_ops = {
-#if 0
- .mapping_error = swiotlb_dma_mapping_error,
- .alloc_coherent = swiotlb_alloc_coherent,
- .free_coherent = swiotlb_free_coherent,
- .map_single = swiotlb_map_single,
- .unmap_single = swiotlb_unmap_single,
- .sync_single_for_cpu = swiotlb_sync_single_for_cpu,
- .sync_single_for_device = swiotlb_sync_single_for_device,
- .sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu,
- .sync_single_range_for_device = swiotlb_sync_single_range_for_device,
- .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
- .sync_sg_for_device = swiotlb_sync_sg_for_device,
- .map_sg = swiotlb_map_sg,
- .unmap_sg = swiotlb_unmap_sg,
- .dma_supported = NULL,
-#endif
-};
-
-void pci_swiotlb_init(void)
-{
-#if 0
- /* don't initialize swiotlb if iommu=off (no_iommu=1) */
- 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();
- dma_ops = &swiotlb_dma_ops;
- }
-#else
- swiotlb_init();
- if (swiotlb) {
- printk(KERN_INFO "PCI-DMA: Using software bounce buffering for IO (SWIOTLB)\n");
- dma_ops = &swiotlb_dma_ops;
- }
-#endif
-}