From 7996a3d79d55b7f879dfd62e202bbfe2963718d3 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Sat, 27 Jul 2013 22:15:01 +0000 Subject: really properly move files --- .../contrib/include/asm-generic/dma-coherent.h | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 libdde-linux26/contrib/include/asm-generic/dma-coherent.h (limited to 'libdde-linux26/contrib/include/asm-generic/dma-coherent.h') diff --git a/libdde-linux26/contrib/include/asm-generic/dma-coherent.h b/libdde-linux26/contrib/include/asm-generic/dma-coherent.h new file mode 100644 index 00000000..85a3ffaa --- /dev/null +++ b/libdde-linux26/contrib/include/asm-generic/dma-coherent.h @@ -0,0 +1,32 @@ +#ifndef DMA_COHERENT_H +#define DMA_COHERENT_H + +#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT +/* + * These two functions are only for dma allocator. + * Don't use them in device drivers. + */ +int dma_alloc_from_coherent(struct device *dev, ssize_t size, + dma_addr_t *dma_handle, void **ret); +int dma_release_from_coherent(struct device *dev, int order, void *vaddr); + +/* + * Standard interface + */ +#define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY +extern int +dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, + dma_addr_t device_addr, size_t size, int flags); + +extern void +dma_release_declared_memory(struct device *dev); + +extern void * +dma_mark_declared_memory_occupied(struct device *dev, + dma_addr_t device_addr, size_t size); +#else +#define dma_alloc_from_coherent(dev, size, handle, ret) (0) +#define dma_release_from_coherent(dev, order, vaddr) (0) +#endif + +#endif -- cgit v1.2.3