[linux-2.6-block.git] / arch / arm64 / include / asm / xen / page-coherent.h

#ifndef _ASM_ARM64_XEN_PAGE_COHERENT_H
#define _ASM_ARM64_XEN_PAGE_COHERENT_H

#include <asm/page.h>
#include <linux/dma-attrs.h>
#include <linux/dma-mapping.h>

static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size,
		dma_addr_t *dma_handle, gfp_t flags,
		struct dma_attrs *attrs)
{
	return __generic_dma_ops(hwdev)->alloc(hwdev, size, dma_handle, flags, attrs);
}

static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
		void *cpu_addr, dma_addr_t dma_handle,
		struct dma_attrs *attrs)
{
	__generic_dma_ops(hwdev)->free(hwdev, size, cpu_addr, dma_handle, attrs);
}

static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
	     unsigned long offset, size_t size, enum dma_data_direction dir,
	     struct dma_attrs *attrs)
{
}

static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
		size_t size, enum dma_data_direction dir,
		struct dma_attrs *attrs)
{
}

static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
		dma_addr_t handle, size_t size, enum dma_data_direction dir)
{
}

static inline void xen_dma_sync_single_for_device(struct device *hwdev,
		dma_addr_t handle, size_t size, enum dma_data_direction dir)
{
}
#endif /* _ASM_ARM64_XEN_PAGE_COHERENT_H */
Commit	Line	Data
d6fe76c5 SS	1	#ifndef _ASM_ARM64_XEN_PAGE_COHERENT_H
	2	#define _ASM_ARM64_XEN_PAGE_COHERENT_H
	3
	4	#include <asm/page.h>
	5	#include <linux/dma-attrs.h>
	6	#include <linux/dma-mapping.h>
	7
	8	static inline void xen_alloc_coherent_pages(struct device hwdev, size_t size,
	9	dma_addr_t *dma_handle, gfp_t flags,
	10	struct dma_attrs *attrs)
	11	{
	12	return __generic_dma_ops(hwdev)->alloc(hwdev, size, dma_handle, flags, attrs);
	13	}
	14
	15	static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
	16	void *cpu_addr, dma_addr_t dma_handle,
	17	struct dma_attrs *attrs)
	18	{
	19	__generic_dma_ops(hwdev)->free(hwdev, size, cpu_addr, dma_handle, attrs);
	20	}
	21
7100b077 SS	22	static inline void xen_dma_map_page(struct device hwdev, struct page page,
	23	unsigned long offset, size_t size, enum dma_data_direction dir,
	24	struct dma_attrs *attrs)
	25	{
7100b077 SS	26	}
	27
	28	static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
	29	size_t size, enum dma_data_direction dir,
	30	struct dma_attrs *attrs)
	31	{
7100b077 SS	32	}
	33
	34	static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
	35	dma_addr_t handle, size_t size, enum dma_data_direction dir)
	36	{
7100b077 SS	37	}
	38
	39	static inline void xen_dma_sync_single_for_device(struct device *hwdev,
	40	dma_addr_t handle, size_t size, enum dma_data_direction dir)
	41	{
7100b077	42	}
d6fe76c5	43	#endif /* _ASM_ARM64_XEN_PAGE_COHERENT_H */