diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/dma-attrs.h | 2 | ||||
| -rw-r--r-- | include/linux/dma-mapping.h | 3 | ||||
| -rw-r--r-- | include/linux/scatterlist.h | 4 | ||||
| -rw-r--r-- | include/linux/vmalloc.h | 9 |
4 files changed, 14 insertions, 4 deletions
diff --git a/include/linux/dma-attrs.h b/include/linux/dma-attrs.h index 547ab568d3a..f83f793223f 100644 --- a/include/linux/dma-attrs.h +++ b/include/linux/dma-attrs.h @@ -15,6 +15,8 @@ enum dma_attr { DMA_ATTR_WEAK_ORDERING, DMA_ATTR_WRITE_COMBINE, DMA_ATTR_NON_CONSISTENT, + DMA_ATTR_NO_KERNEL_MAPPING, + DMA_ATTR_SKIP_CPU_SYNC, DMA_ATTR_MAX, }; diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index dfc099e56a6..94af4185851 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -18,6 +18,9 @@ struct dma_map_ops { int (*mmap)(struct device *, struct vm_area_struct *, void *, dma_addr_t, size_t, struct dma_attrs *attrs); + int (*get_sgtable)(struct device *dev, struct sg_table *sgt, void *, + dma_addr_t, size_t, struct dma_attrs *attrs); + dma_addr_t (*map_page)(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction dir, diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h index ac9586dadfa..7b600da9a63 100644 --- a/include/linux/scatterlist.h +++ b/include/linux/scatterlist.h @@ -214,6 +214,10 @@ void sg_free_table(struct sg_table *); int __sg_alloc_table(struct sg_table *, unsigned int, unsigned int, gfp_t, sg_alloc_fn *); int sg_alloc_table(struct sg_table *, unsigned int, gfp_t); +int sg_alloc_table_from_pages(struct sg_table *sgt, + struct page **pages, unsigned int n_pages, + unsigned long offset, unsigned long size, + gfp_t gfp_mask); size_t sg_copy_from_buffer(struct scatterlist *sgl, unsigned int nents, void *buf, size_t buflen); diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index dcdfc2bda92..6071e911c7f 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -32,7 +32,7 @@ struct vm_struct { struct page **pages; unsigned int nr_pages; phys_addr_t phys_addr; - void *caller; + const void *caller; }; /* @@ -62,7 +62,7 @@ extern void *vmalloc_32_user(unsigned long size); extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot); extern void *__vmalloc_node_range(unsigned long size, unsigned long align, unsigned long start, unsigned long end, gfp_t gfp_mask, - pgprot_t prot, int node, void *caller); + pgprot_t prot, int node, const void *caller); extern void vfree(const void *addr); extern void *vmap(struct page **pages, unsigned int count, @@ -85,14 +85,15 @@ static inline size_t get_vm_area_size(const struct vm_struct *area) extern struct vm_struct *get_vm_area(unsigned long size, unsigned long flags); extern struct vm_struct *get_vm_area_caller(unsigned long size, - unsigned long flags, void *caller); + unsigned long flags, const void *caller); extern struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags, unsigned long start, unsigned long end); extern struct vm_struct *__get_vm_area_caller(unsigned long size, unsigned long flags, unsigned long start, unsigned long end, - void *caller); + const void *caller); extern struct vm_struct *remove_vm_area(const void *addr); +extern struct vm_struct *find_vm_area(const void *addr); extern int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages); |