diff options
Diffstat (limited to 'include/asm-powerpc/iommu.h')
-rw-r--r-- | include/asm-powerpc/iommu.h | 34 |
1 files changed, 13 insertions, 21 deletions
diff --git a/include/asm-powerpc/iommu.h b/include/asm-powerpc/iommu.h index 39fad685ffab..f85dbd305558 100644 --- a/include/asm-powerpc/iommu.h +++ b/include/asm-powerpc/iommu.h | |||
@@ -34,7 +34,9 @@ | |||
34 | #define IOMMU_PAGE_MASK (~((1 << IOMMU_PAGE_SHIFT) - 1)) | 34 | #define IOMMU_PAGE_MASK (~((1 << IOMMU_PAGE_SHIFT) - 1)) |
35 | #define IOMMU_PAGE_ALIGN(addr) _ALIGN_UP(addr, IOMMU_PAGE_SIZE) | 35 | #define IOMMU_PAGE_ALIGN(addr) _ALIGN_UP(addr, IOMMU_PAGE_SIZE) |
36 | 36 | ||
37 | #ifndef __ASSEMBLY__ | 37 | /* Boot time flags */ |
38 | extern int iommu_is_off; | ||
39 | extern int iommu_force_on; | ||
38 | 40 | ||
39 | /* Pure 2^n version of get_order */ | 41 | /* Pure 2^n version of get_order */ |
40 | static __inline__ __attribute_const__ int get_iommu_order(unsigned long size) | 42 | static __inline__ __attribute_const__ int get_iommu_order(unsigned long size) |
@@ -42,8 +44,6 @@ static __inline__ __attribute_const__ int get_iommu_order(unsigned long size) | |||
42 | return __ilog2((size - 1) >> IOMMU_PAGE_SHIFT) + 1; | 44 | return __ilog2((size - 1) >> IOMMU_PAGE_SHIFT) + 1; |
43 | } | 45 | } |
44 | 46 | ||
45 | #endif /* __ASSEMBLY__ */ | ||
46 | |||
47 | 47 | ||
48 | /* | 48 | /* |
49 | * IOMAP_MAX_ORDER defines the largest contiguous block | 49 | * IOMAP_MAX_ORDER defines the largest contiguous block |
@@ -70,39 +70,31 @@ struct iommu_table { | |||
70 | struct scatterlist; | 70 | struct scatterlist; |
71 | struct device_node; | 71 | struct device_node; |
72 | 72 | ||
73 | #ifdef CONFIG_PPC_MULTIPLATFORM | ||
74 | |||
75 | /* Walks all buses and creates iommu tables */ | ||
76 | extern void iommu_setup_pSeries(void); | ||
77 | extern void iommu_setup_dart(void); | ||
78 | |||
79 | /* Frees table for an individual device node */ | 73 | /* Frees table for an individual device node */ |
80 | extern void iommu_free_table(struct device_node *dn); | 74 | extern void iommu_free_table(struct device_node *dn); |
81 | 75 | ||
82 | #endif /* CONFIG_PPC_MULTIPLATFORM */ | ||
83 | |||
84 | /* Initializes an iommu_table based in values set in the passed-in | 76 | /* Initializes an iommu_table based in values set in the passed-in |
85 | * structure | 77 | * structure |
86 | */ | 78 | */ |
87 | extern struct iommu_table *iommu_init_table(struct iommu_table * tbl, | 79 | extern struct iommu_table *iommu_init_table(struct iommu_table * tbl, |
88 | int nid); | 80 | int nid); |
89 | 81 | ||
90 | extern int iommu_map_sg(struct device *dev, struct iommu_table *tbl, | 82 | extern int iommu_map_sg(struct iommu_table *tbl, struct scatterlist *sglist, |
91 | struct scatterlist *sglist, int nelems, unsigned long mask, | 83 | int nelems, unsigned long mask, |
92 | enum dma_data_direction direction); | 84 | enum dma_data_direction direction); |
93 | extern void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist, | 85 | extern void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist, |
94 | int nelems, enum dma_data_direction direction); | 86 | int nelems, enum dma_data_direction direction); |
95 | 87 | ||
96 | extern void *iommu_alloc_coherent(struct iommu_table *tbl, size_t size, | 88 | extern void *iommu_alloc_coherent(struct iommu_table *tbl, size_t size, |
97 | dma_addr_t *dma_handle, unsigned long mask, | 89 | dma_addr_t *dma_handle, unsigned long mask, |
98 | gfp_t flag, int node); | 90 | gfp_t flag, int node); |
99 | extern void iommu_free_coherent(struct iommu_table *tbl, size_t size, | 91 | extern void iommu_free_coherent(struct iommu_table *tbl, size_t size, |
100 | void *vaddr, dma_addr_t dma_handle); | 92 | void *vaddr, dma_addr_t dma_handle); |
101 | extern dma_addr_t iommu_map_single(struct iommu_table *tbl, void *vaddr, | 93 | extern dma_addr_t iommu_map_single(struct iommu_table *tbl, void *vaddr, |
102 | size_t size, unsigned long mask, | 94 | size_t size, unsigned long mask, |
103 | enum dma_data_direction direction); | 95 | enum dma_data_direction direction); |
104 | extern void iommu_unmap_single(struct iommu_table *tbl, dma_addr_t dma_handle, | 96 | extern void iommu_unmap_single(struct iommu_table *tbl, dma_addr_t dma_handle, |
105 | size_t size, enum dma_data_direction direction); | 97 | size_t size, enum dma_data_direction direction); |
106 | 98 | ||
107 | extern void iommu_init_early_pSeries(void); | 99 | extern void iommu_init_early_pSeries(void); |
108 | extern void iommu_init_early_iSeries(void); | 100 | extern void iommu_init_early_iSeries(void); |