Commit | Line | Data |
---|---|---|
62fdd767 FY |
1 | /* Glue code to lib/swiotlb.c */ |
2 | ||
3 | #include <linux/pci.h> | |
4 | #include <linux/cache.h> | |
5 | #include <linux/module.h> | |
6 | #include <linux/dma-mapping.h> | |
7 | ||
8 | #include <asm/swiotlb.h> | |
9 | #include <asm/dma.h> | |
10 | #include <asm/iommu.h> | |
11 | #include <asm/machvec.h> | |
12 | ||
13 | int swiotlb __read_mostly; | |
14 | EXPORT_SYMBOL(swiotlb); | |
15 | ||
16 | struct dma_mapping_ops swiotlb_dma_ops = { | |
17 | .mapping_error = swiotlb_dma_mapping_error, | |
18 | .alloc_coherent = swiotlb_alloc_coherent, | |
19 | .free_coherent = swiotlb_free_coherent, | |
20 | .map_single = swiotlb_map_single, | |
21 | .unmap_single = swiotlb_unmap_single, | |
22 | .sync_single_for_cpu = swiotlb_sync_single_for_cpu, | |
23 | .sync_single_for_device = swiotlb_sync_single_for_device, | |
24 | .sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu, | |
25 | .sync_single_range_for_device = swiotlb_sync_single_range_for_device, | |
26 | .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu, | |
27 | .sync_sg_for_device = swiotlb_sync_sg_for_device, | |
28 | .map_sg = swiotlb_map_sg, | |
29 | .unmap_sg = swiotlb_unmap_sg, | |
30 | .dma_supported_op = swiotlb_dma_supported, | |
31 | }; | |
32 | ||
33 | void __init pci_swiotlb_init(void) | |
34 | { | |
35 | if (!iommu_detected) { | |
36 | #ifdef CONFIG_IA64_GENERIC | |
37 | swiotlb = 1; | |
38 | printk(KERN_INFO "PCI-DMA: Re-initialize machine vector.\n"); | |
39 | machvec_init("dig"); | |
40 | swiotlb_init(); | |
41 | dma_ops = &swiotlb_dma_ops; | |
42 | #else | |
43 | panic("Unable to find Intel IOMMU"); | |
44 | #endif | |
45 | } | |
46 | } |