ALSA: hda - Add the top speaker pin config for HP Spectre x360
[linux/fpc-iii.git] / arch / x86 / include / asm / xen / page-coherent.h
blobf02f025ff988bfecb9e2c14d033be16241207c2a
1 #ifndef _ASM_X86_XEN_PAGE_COHERENT_H
2 #define _ASM_X86_XEN_PAGE_COHERENT_H
4 #include <asm/page.h>
5 #include <linux/dma-mapping.h>
7 static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size,
8 dma_addr_t *dma_handle, gfp_t flags,
9 unsigned long attrs)
11 void *vstart = (void*)__get_free_pages(flags, get_order(size));
12 *dma_handle = virt_to_phys(vstart);
13 return vstart;
16 static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
17 void *cpu_addr, dma_addr_t dma_handle,
18 unsigned long attrs)
20 free_pages((unsigned long) cpu_addr, get_order(size));
23 static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
24 dma_addr_t dev_addr, unsigned long offset, size_t size,
25 enum dma_data_direction dir, unsigned long attrs) { }
27 static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
28 size_t size, enum dma_data_direction dir,
29 unsigned long attrs) { }
31 static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
32 dma_addr_t handle, size_t size, enum dma_data_direction dir) { }
34 static inline void xen_dma_sync_single_for_device(struct device *hwdev,
35 dma_addr_t handle, size_t size, enum dma_data_direction dir) { }
37 #endif /* _ASM_X86_XEN_PAGE_COHERENT_H */