include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit...
[linux-2.6.git] / arch / ia64 / kernel / pci-swiotlb.c
1 /* Glue code to lib/swiotlb.c */
2
3 #include <linux/pci.h>
4 #include <linux/gfp.h>
5 #include <linux/cache.h>
6 #include <linux/module.h>
7 #include <linux/dma-mapping.h>
8
9 #include <asm/swiotlb.h>
10 #include <asm/dma.h>
11 #include <asm/iommu.h>
12 #include <asm/machvec.h>
13
14 int swiotlb __read_mostly;
15 EXPORT_SYMBOL(swiotlb);
16
17 static void *ia64_swiotlb_alloc_coherent(struct device *dev, size_t size,
18                                          dma_addr_t *dma_handle, gfp_t gfp)
19 {
20         if (dev->coherent_dma_mask != DMA_BIT_MASK(64))
21                 gfp |= GFP_DMA;
22         return swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
23 }
24
25 struct dma_map_ops swiotlb_dma_ops = {
26         .alloc_coherent = ia64_swiotlb_alloc_coherent,
27         .free_coherent = swiotlb_free_coherent,
28         .map_page = swiotlb_map_page,
29         .unmap_page = swiotlb_unmap_page,
30         .map_sg = swiotlb_map_sg_attrs,
31         .unmap_sg = swiotlb_unmap_sg_attrs,
32         .sync_single_for_cpu = swiotlb_sync_single_for_cpu,
33         .sync_single_for_device = swiotlb_sync_single_for_device,
34         .sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu,
35         .sync_single_range_for_device = swiotlb_sync_single_range_for_device,
36         .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
37         .sync_sg_for_device = swiotlb_sync_sg_for_device,
38         .dma_supported = swiotlb_dma_supported,
39         .mapping_error = swiotlb_dma_mapping_error,
40 };
41
42 void __init swiotlb_dma_init(void)
43 {
44         dma_ops = &swiotlb_dma_ops;
45         swiotlb_init(1);
46 }
47
48 void __init pci_swiotlb_init(void)
49 {
50         if (!iommu_detected) {
51 #ifdef CONFIG_IA64_GENERIC
52                 swiotlb = 1;
53                 printk(KERN_INFO "PCI-DMA: Re-initialize machine vector.\n");
54                 machvec_init("dig");
55                 swiotlb_init(1);
56                 dma_ops = &swiotlb_dma_ops;
57 #else
58                 panic("Unable to find Intel IOMMU");
59 #endif
60         }
61 }