| Stefano Stabellini | d6fe76c | 2013-10-09 17:18:14 +0000 | [diff] [blame^] | 1 | #ifndef _ASM_IA64_XEN_PAGE_COHERENT_H |
| 2 | #define _ASM_IA64_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 | void *vstart = (void*)__get_free_pages(flags, get_order(size)); |
| 13 | *dma_handle = virt_to_phys(vstart); |
| 14 | return vstart; |
| 15 | } |
| 16 | |
| 17 | static inline void xen_free_coherent_pages(struct device *hwdev, size_t size, |
| 18 | void *cpu_addr, dma_addr_t dma_handle, |
| 19 | struct dma_attrs *attrs) |
| 20 | { |
| 21 | free_pages((unsigned long) cpu_addr, get_order(size)); |
| 22 | } |
| 23 | |
| 24 | #endif /* _ASM_IA64_XEN_PAGE_COHERENT_H */ |