Merge branch 'irq-threaded-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[pandora-kernel.git] / arch / x86 / include / asm / dma-mapping.h

diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index b93405b..0ee770d 100644 (file)
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -33,6 +33,8 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 #endif
 }
 
+#include <asm-generic/dma-mapping-common.h>
+
 /* Make sure we keep the same behaviour */
 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
@@ -53,175 +55,22 @@ extern int dma_set_mask(struct device *dev, u64 mask);
 extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
                                        dma_addr_t *dma_addr, gfp_t flag);
 
-static inline dma_addr_t
-dma_map_single(struct device *hwdev, void *ptr, size_t size,
-              enum dma_data_direction dir)
-{
-       struct dma_map_ops *ops = get_dma_ops(hwdev);
-       dma_addr_t addr;
-
-       BUG_ON(!valid_dma_direction(dir));
-       kmemcheck_mark_initialized(ptr, size);
-       addr = ops->map_page(hwdev, virt_to_page(ptr),
-                            (unsigned long)ptr & ~PAGE_MASK, size,
-                            dir, NULL);
-       debug_dma_map_page(hwdev, virt_to_page(ptr),
-                          (unsigned long)ptr & ~PAGE_MASK, size,
-                          dir, addr, true);
-       return addr;
-}
-
-static inline void
-dma_unmap_single(struct device *dev, dma_addr_t addr, size_t size,
-                enum dma_data_direction dir)
-{
-       struct dma_map_ops *ops = get_dma_ops(dev);
-
-       BUG_ON(!valid_dma_direction(dir));
-       if (ops->unmap_page)
-               ops->unmap_page(dev, addr, size, dir, NULL);
-       debug_dma_unmap_page(dev, addr, size, dir, true);
-}
-
-static inline int
-dma_map_sg(struct device *hwdev, struct scatterlist *sg,
-          int nents, enum dma_data_direction dir)
-{
-       struct dma_map_ops *ops = get_dma_ops(hwdev);
-       int ents;
-       struct scatterlist *s;
-       int i;
-
-       BUG_ON(!valid_dma_direction(dir));
-       for_each_sg(sg, s, nents, i)
-               kmemcheck_mark_initialized(sg_virt(s), s->length);
-       ents = ops->map_sg(hwdev, sg, nents, dir, NULL);
-       debug_dma_map_sg(hwdev, sg, nents, ents, dir);
-
-       return ents;
-}
-
-static inline void
-dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
-            enum dma_data_direction dir)
-{
-       struct dma_map_ops *ops = get_dma_ops(hwdev);
-
-       BUG_ON(!valid_dma_direction(dir));
-       debug_dma_unmap_sg(hwdev, sg, nents, dir);
-       if (ops->unmap_sg)
-               ops->unmap_sg(hwdev, sg, nents, dir, NULL);
-}
-
-static inline void
-dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
-                       size_t size, enum dma_data_direction dir)
-{
-       struct dma_map_ops *ops = get_dma_ops(hwdev);
-
-       BUG_ON(!valid_dma_direction(dir));
-       if (ops->sync_single_for_cpu)
-               ops->sync_single_for_cpu(hwdev, dma_handle, size, dir);
-       debug_dma_sync_single_for_cpu(hwdev, dma_handle, size, dir);
-       flush_write_buffers();
-}
-
-static inline void
-dma_sync_single_for_device(struct device *hwdev, dma_addr_t dma_handle,
-                          size_t size, enum dma_data_direction dir)
-{
-       struct dma_map_ops *ops = get_dma_ops(hwdev);
-
-       BUG_ON(!valid_dma_direction(dir));
-       if (ops->sync_single_for_device)
-               ops->sync_single_for_device(hwdev, dma_handle, size, dir);
-       debug_dma_sync_single_for_device(hwdev, dma_handle, size, dir);
-       flush_write_buffers();
-}
-
-static inline void
-dma_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
-                             unsigned long offset, size_t size,
-                             enum dma_data_direction dir)
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
-       struct dma_map_ops *ops = get_dma_ops(hwdev);
-
-       BUG_ON(!valid_dma_direction(dir));
-       if (ops->sync_single_range_for_cpu)
-               ops->sync_single_range_for_cpu(hwdev, dma_handle, offset,
-                                              size, dir);
-       debug_dma_sync_single_range_for_cpu(hwdev, dma_handle,
-                                           offset, size, dir);
-       flush_write_buffers();
-}
+       if (!dev->dma_mask)
+               return 0;
 
-static inline void
-dma_sync_single_range_for_device(struct device *hwdev, dma_addr_t dma_handle,
-                                unsigned long offset, size_t size,
-                                enum dma_data_direction dir)
-{
-       struct dma_map_ops *ops = get_dma_ops(hwdev);
-
-       BUG_ON(!valid_dma_direction(dir));
-       if (ops->sync_single_range_for_device)
-               ops->sync_single_range_for_device(hwdev, dma_handle,
-                                                 offset, size, dir);
-       debug_dma_sync_single_range_for_device(hwdev, dma_handle,
-                                              offset, size, dir);
-       flush_write_buffers();
+       return addr + size <= *dev->dma_mask;
 }
 
-static inline void
-dma_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
-                   int nelems, enum dma_data_direction dir)
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
-       struct dma_map_ops *ops = get_dma_ops(hwdev);
-
-       BUG_ON(!valid_dma_direction(dir));
-       if (ops->sync_sg_for_cpu)
-               ops->sync_sg_for_cpu(hwdev, sg, nelems, dir);
-       debug_dma_sync_sg_for_cpu(hwdev, sg, nelems, dir);
-       flush_write_buffers();
+       return paddr;
 }
 
-static inline void
-dma_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
-                      int nelems, enum dma_data_direction dir)
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
 {
-       struct dma_map_ops *ops = get_dma_ops(hwdev);
-
-       BUG_ON(!valid_dma_direction(dir));
-       if (ops->sync_sg_for_device)
-               ops->sync_sg_for_device(hwdev, sg, nelems, dir);
-       debug_dma_sync_sg_for_device(hwdev, sg, nelems, dir);
-
-       flush_write_buffers();
-}
-
-static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
-                                     size_t offset, size_t size,
-                                     enum dma_data_direction dir)
-{
-       struct dma_map_ops *ops = get_dma_ops(dev);
-       dma_addr_t addr;
-
-       BUG_ON(!valid_dma_direction(dir));
-       kmemcheck_mark_initialized(page_address(page) + offset, size);
-       addr = ops->map_page(dev, page, offset, size, dir, NULL);
-       debug_dma_map_page(dev, page, offset, size, dir, addr, false);
-
-       return addr;
-}
-
-static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
-                                 size_t size, enum dma_data_direction dir)
-{
-       struct dma_map_ops *ops = get_dma_ops(dev);
-
-       BUG_ON(!valid_dma_direction(dir));
-       if (ops->unmap_page)
-               ops->unmap_page(dev, addr, size, dir, NULL);
-       debug_dma_unmap_page(dev, addr, size, dir, false);
+       return daddr;
 }
 
 static inline void