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-rw-r--r--arch/powerpc/kernel/dma_64.c45
1 files changed, 23 insertions, 22 deletions
diff --git a/arch/powerpc/kernel/dma_64.c b/arch/powerpc/kernel/dma_64.c
index 3a317cb0636a..ae5708e3a312 100644
--- a/arch/powerpc/kernel/dma_64.c
+++ b/arch/powerpc/kernel/dma_64.c
@@ -15,15 +15,6 @@
15 * Generic iommu implementation 15 * Generic iommu implementation
16 */ 16 */
17 17
18static inline unsigned long device_to_mask(struct device *dev)
19{
20 if (dev->dma_mask && *dev->dma_mask)
21 return *dev->dma_mask;
22 /* Assume devices without mask can take 32 bit addresses */
23 return 0xfffffffful;
24}
25
26
27/* Allocates a contiguous real buffer and creates mappings over it. 18/* Allocates a contiguous real buffer and creates mappings over it.
28 * Returns the virtual address of the buffer and sets dma_handle 19 * Returns the virtual address of the buffer and sets dma_handle
29 * to the dma address (mapping) of the first page. 20 * to the dma address (mapping) of the first page.
@@ -50,32 +41,38 @@ static void dma_iommu_free_coherent(struct device *dev, size_t size,
50 */ 41 */
51static dma_addr_t dma_iommu_map_single(struct device *dev, void *vaddr, 42static dma_addr_t dma_iommu_map_single(struct device *dev, void *vaddr,
52 size_t size, 43 size_t size,
53 enum dma_data_direction direction) 44 enum dma_data_direction direction,
45 struct dma_attrs *attrs)
54{ 46{
55 return iommu_map_single(dev, dev->archdata.dma_data, vaddr, size, 47 return iommu_map_single(dev, dev->archdata.dma_data, vaddr, size,
56 device_to_mask(dev), direction); 48 device_to_mask(dev), direction, attrs);
57} 49}
58 50
59 51
60static void dma_iommu_unmap_single(struct device *dev, dma_addr_t dma_handle, 52static void dma_iommu_unmap_single(struct device *dev, dma_addr_t dma_handle,
61 size_t size, 53 size_t size,
62 enum dma_data_direction direction) 54 enum dma_data_direction direction,
55 struct dma_attrs *attrs)
63{ 56{
64 iommu_unmap_single(dev->archdata.dma_data, dma_handle, size, direction); 57 iommu_unmap_single(dev->archdata.dma_data, dma_handle, size, direction,
58 attrs);
65} 59}
66 60
67 61
68static int dma_iommu_map_sg(struct device *dev, struct scatterlist *sglist, 62static int dma_iommu_map_sg(struct device *dev, struct scatterlist *sglist,
69 int nelems, enum dma_data_direction direction) 63 int nelems, enum dma_data_direction direction,
64 struct dma_attrs *attrs)
70{ 65{
71 return iommu_map_sg(dev, sglist, nelems, 66 return iommu_map_sg(dev, dev->archdata.dma_data, sglist, nelems,
72 device_to_mask(dev), direction); 67 device_to_mask(dev), direction, attrs);
73} 68}
74 69
75static void dma_iommu_unmap_sg(struct device *dev, struct scatterlist *sglist, 70static void dma_iommu_unmap_sg(struct device *dev, struct scatterlist *sglist,
76 int nelems, enum dma_data_direction direction) 71 int nelems, enum dma_data_direction direction,
72 struct dma_attrs *attrs)
77{ 73{
78 iommu_unmap_sg(dev->archdata.dma_data, sglist, nelems, direction); 74 iommu_unmap_sg(dev->archdata.dma_data, sglist, nelems, direction,
75 attrs);
79} 76}
80 77
81/* We support DMA to/from any memory page via the iommu */ 78/* We support DMA to/from any memory page via the iommu */
@@ -148,19 +145,22 @@ static void dma_direct_free_coherent(struct device *dev, size_t size,
148 145
149static dma_addr_t dma_direct_map_single(struct device *dev, void *ptr, 146static dma_addr_t dma_direct_map_single(struct device *dev, void *ptr,
150 size_t size, 147 size_t size,
151 enum dma_data_direction direction) 148 enum dma_data_direction direction,
149 struct dma_attrs *attrs)
152{ 150{
153 return virt_to_abs(ptr) + get_dma_direct_offset(dev); 151 return virt_to_abs(ptr) + get_dma_direct_offset(dev);
154} 152}
155 153
156static void dma_direct_unmap_single(struct device *dev, dma_addr_t dma_addr, 154static void dma_direct_unmap_single(struct device *dev, dma_addr_t dma_addr,
157 size_t size, 155 size_t size,
158 enum dma_data_direction direction) 156 enum dma_data_direction direction,
157 struct dma_attrs *attrs)
159{ 158{
160} 159}
161 160
162static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, 161static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
163 int nents, enum dma_data_direction direction) 162 int nents, enum dma_data_direction direction,
163 struct dma_attrs *attrs)
164{ 164{
165 struct scatterlist *sg; 165 struct scatterlist *sg;
166 int i; 166 int i;
@@ -174,7 +174,8 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
174} 174}
175 175
176static void dma_direct_unmap_sg(struct device *dev, struct scatterlist *sg, 176static void dma_direct_unmap_sg(struct device *dev, struct scatterlist *sg,
177 int nents, enum dma_data_direction direction) 177 int nents, enum dma_data_direction direction,
178 struct dma_attrs *attrs)
178{ 179{
179} 180}
180 181