40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
#ifndef _ASM_ARM_XEN_PAGE_COHERENT_H
|
|
#define _ASM_ARM_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)
|
|
{
|
|
__generic_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs);
|
|
}
|
|
|
|
void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
|
|
size_t size, enum dma_data_direction dir,
|
|
struct dma_attrs *attrs);
|
|
|
|
void xen_dma_sync_single_for_cpu(struct device *hwdev,
|
|
dma_addr_t handle, size_t size, enum dma_data_direction dir);
|
|
|
|
void xen_dma_sync_single_for_device(struct device *hwdev,
|
|
dma_addr_t handle, size_t size, enum dma_data_direction dir);
|
|
|
|
#endif /* _ASM_ARM_XEN_PAGE_COHERENT_H */
|