1 /* Glue code to lib/swiotlb.c */
4 #include <linux/cache.h>
5 #include <linux/module.h>
6 #include <linux/dma-mapping.h>
8 #include <asm/swiotlb.h>
10 #include <asm/iommu.h>
11 #include <asm/machvec.h>
13 int swiotlb __read_mostly
;
14 EXPORT_SYMBOL(swiotlb
);
16 struct dma_map_ops swiotlb_dma_ops
= {
17 .alloc_coherent
= swiotlb_alloc_coherent
,
18 .free_coherent
= swiotlb_free_coherent
,
19 .map_page
= swiotlb_map_page
,
20 .unmap_page
= swiotlb_unmap_page
,
21 .map_sg
= swiotlb_map_sg_attrs
,
22 .unmap_sg
= swiotlb_unmap_sg_attrs
,
23 .sync_single_for_cpu
= swiotlb_sync_single_for_cpu
,
24 .sync_single_for_device
= swiotlb_sync_single_for_device
,
25 .sync_single_range_for_cpu
= swiotlb_sync_single_range_for_cpu
,
26 .sync_single_range_for_device
= swiotlb_sync_single_range_for_device
,
27 .sync_sg_for_cpu
= swiotlb_sync_sg_for_cpu
,
28 .sync_sg_for_device
= swiotlb_sync_sg_for_device
,
29 .dma_supported
= swiotlb_dma_supported
,
30 .mapping_error
= swiotlb_dma_mapping_error
,
33 void __init
swiotlb_dma_init(void)
35 dma_ops
= &swiotlb_dma_ops
;
39 void __init
pci_swiotlb_init(void)
41 if (!iommu_detected
) {
42 #ifdef CONFIG_IA64_GENERIC
44 printk(KERN_INFO
"PCI-DMA: Re-initialize machine vector.\n");
47 dma_ops
= &swiotlb_dma_ops
;
49 panic("Unable to find Intel IOMMU");