diff options
Diffstat (limited to 'include/linux/dma-mapping.h')
| -rw-r--r-- | include/linux/dma-mapping.h | 42 |
1 files changed, 18 insertions, 24 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 1db6a6b46d0d..15bd41447025 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -130,13 +130,10 @@ struct dma_map_ops { enum dma_data_direction direction); int (*mapping_error)(struct device *dev, dma_addr_t dma_addr); int (*dma_supported)(struct device *dev, u64 mask); -#ifdef ARCH_HAS_DMA_GET_REQUIRED_MASK u64 (*get_required_mask)(struct device *dev); -#endif }; extern const struct dma_map_ops dma_direct_ops; -extern const struct dma_map_ops dma_noncoherent_ops; extern const struct dma_map_ops dma_virt_ops; #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) @@ -232,6 +229,7 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev, void *ptr, dma_addr_t addr; BUG_ON(!valid_dma_direction(dir)); + debug_dma_map_single(dev, ptr, size); addr = ops->map_page(dev, virt_to_page(ptr), offset_in_page(ptr), size, dir, attrs); @@ -445,7 +443,8 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size, } extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma, - void *cpu_addr, dma_addr_t dma_addr, size_t size); + void *cpu_addr, dma_addr_t dma_addr, size_t size, + unsigned long attrs); void *dma_common_contiguous_remap(struct page *page, size_t size, unsigned long vm_flags, @@ -477,14 +476,14 @@ dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma, void *cpu_addr, BUG_ON(!ops); if (ops->mmap) return ops->mmap(dev, vma, cpu_addr, dma_addr, size, attrs); - return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size); + return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size, attrs); } #define dma_mmap_coherent(d, v, c, h, s) dma_mmap_attrs(d, v, c, h, s, 0) int -dma_common_get_sgtable(struct device *dev, struct sg_table *sgt, - void *cpu_addr, dma_addr_t dma_addr, size_t size); +dma_common_get_sgtable(struct device *dev, struct sg_table *sgt, void *cpu_addr, + dma_addr_t dma_addr, size_t size, unsigned long attrs); static inline int dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, void *cpu_addr, @@ -496,7 +495,8 @@ dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, void *cpu_addr, if (ops->get_sgtable) return ops->get_sgtable(dev, sgt, cpu_addr, dma_addr, size, attrs); - return dma_common_get_sgtable(dev, sgt, cpu_addr, dma_addr, size); + return dma_common_get_sgtable(dev, sgt, cpu_addr, dma_addr, size, + attrs); } #define dma_get_sgtable(d, t, v, h, s) dma_get_sgtable_attrs(d, t, v, h, s, 0) @@ -558,9 +558,11 @@ static inline void dma_free_attrs(struct device *dev, size_t size, } static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t gfp) { - return dma_alloc_attrs(dev, size, dma_handle, flag, 0); + + return dma_alloc_attrs(dev, size, dma_handle, gfp, + (gfp & __GFP_NOWARN) ? DMA_ATTR_NO_WARN : 0); } static inline void dma_free_coherent(struct device *dev, size_t size, @@ -753,18 +755,6 @@ dma_mark_declared_memory_occupied(struct device *dev, } #endif /* CONFIG_HAVE_GENERIC_DMA_COHERENT */ -#ifdef CONFIG_HAS_DMA -int dma_configure(struct device *dev); -void dma_deconfigure(struct device *dev); -#else -static inline int dma_configure(struct device *dev) -{ - return 0; -} - -static inline void dma_deconfigure(struct device *dev) {} -#endif - /* * Managed DMA API */ @@ -806,8 +796,12 @@ static inline void dmam_release_declared_memory(struct device *dev) static inline void *dma_alloc_wc(struct device *dev, size_t size, dma_addr_t *dma_addr, gfp_t gfp) { - return dma_alloc_attrs(dev, size, dma_addr, gfp, - DMA_ATTR_WRITE_COMBINE); + unsigned long attrs = DMA_ATTR_NO_WARN; + + if (gfp & __GFP_NOWARN) + attrs |= DMA_ATTR_NO_WARN; + + return dma_alloc_attrs(dev, size, dma_addr, gfp, attrs); } #ifndef dma_alloc_writecombine #define dma_alloc_writecombine dma_alloc_wc |