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Diffstat (limited to 'arch/x86/kernel/pci-nommu.c')
-rw-r--r--arch/x86/kernel/pci-nommu.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index c70ab5a5d4c8..fe50214db876 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -25,19 +25,19 @@ check_addr(char *name, struct device *hwdev, dma_addr_t bus, size_t size)
25 return 1; 25 return 1;
26} 26}
27 27
28static dma_addr_t 28static dma_addr_t nommu_map_page(struct device *dev, struct page *page,
29nommu_map_single(struct device *hwdev, phys_addr_t paddr, size_t size, 29 unsigned long offset, size_t size,
30 int direction) 30 enum dma_data_direction dir,
31 struct dma_attrs *attrs)
31{ 32{
32 dma_addr_t bus = paddr; 33 dma_addr_t bus = page_to_phys(page) + offset;
33 WARN_ON(size == 0); 34 WARN_ON(size == 0);
34 if (!check_addr("map_single", hwdev, bus, size)) 35 if (!check_addr("map_single", dev, bus, size))
35 return bad_dma_address; 36 return bad_dma_address;
36 flush_write_buffers(); 37 flush_write_buffers();
37 return bus; 38 return bus;
38} 39}
39 40
40
41/* Map a set of buffers described by scatterlist in streaming 41/* Map a set of buffers described by scatterlist in streaming
42 * mode for DMA. This is the scatter-gather version of the 42 * mode for DMA. This is the scatter-gather version of the
43 * above pci_map_single interface. Here the scatter gather list 43 * above pci_map_single interface. Here the scatter gather list
@@ -54,7 +54,8 @@ nommu_map_single(struct device *hwdev, phys_addr_t paddr, size_t size,
54 * the same here. 54 * the same here.
55 */ 55 */
56static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg, 56static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg,
57 int nents, int direction) 57 int nents, enum dma_data_direction dir,
58 struct dma_attrs *attrs)
58{ 59{
59 struct scatterlist *s; 60 struct scatterlist *s;
60 int i; 61 int i;
@@ -78,11 +79,11 @@ static void nommu_free_coherent(struct device *dev, size_t size, void *vaddr,
78 free_pages((unsigned long)vaddr, get_order(size)); 79 free_pages((unsigned long)vaddr, get_order(size));
79} 80}
80 81
81struct dma_mapping_ops nommu_dma_ops = { 82struct dma_map_ops nommu_dma_ops = {
82 .alloc_coherent = dma_generic_alloc_coherent, 83 .alloc_coherent = dma_generic_alloc_coherent,
83 .free_coherent = nommu_free_coherent, 84 .free_coherent = nommu_free_coherent,
84 .map_single = nommu_map_single,
85 .map_sg = nommu_map_sg, 85 .map_sg = nommu_map_sg,
86 .map_page = nommu_map_page,
86 .is_phys = 1, 87 .is_phys = 1,
87}; 88};
88 89