ia64/linux-2.6.18-xen.hg

view include/asm-m68k/dma-mapping.h @ 452:c7ed6fe5dca0

kexec: dont initialise regions in reserve_memory()

There is no need to initialise efi_memmap_res and boot_param_res in
reserve_memory() for the initial xen domain as it is done in
machine_kexec_setup_resources() using values from the kexec hypercall.

Signed-off-by: Simon Horman <horms@verge.net.au>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Feb 28 10:55:18 2008 +0000 (2008-02-28)
parents 831230e53067
children
line source
1 #ifndef _M68K_DMA_MAPPING_H
2 #define _M68K_DMA_MAPPING_H
4 #include <asm/cache.h>
6 struct scatterlist;
8 static inline int dma_supported(struct device *dev, u64 mask)
9 {
10 return 1;
11 }
13 static inline int dma_set_mask(struct device *dev, u64 mask)
14 {
15 return 0;
16 }
18 static inline int dma_get_cache_alignment(void)
19 {
20 return 1 << L1_CACHE_SHIFT;
21 }
23 static inline int dma_is_consistent(dma_addr_t dma_addr)
24 {
25 return 0;
26 }
28 extern void *dma_alloc_coherent(struct device *, size_t,
29 dma_addr_t *, int);
30 extern void dma_free_coherent(struct device *, size_t,
31 void *, dma_addr_t);
33 static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
34 dma_addr_t *handle, int flag)
35 {
36 return dma_alloc_coherent(dev, size, handle, flag);
37 }
38 static inline void dma_free_noncoherent(struct device *dev, size_t size,
39 void *addr, dma_addr_t handle)
40 {
41 dma_free_coherent(dev, size, addr, handle);
42 }
43 static inline void dma_cache_sync(void *vaddr, size_t size,
44 enum dma_data_direction dir)
45 {
46 /* we use coherent allocation, so not much to do here. */
47 }
49 extern dma_addr_t dma_map_single(struct device *, void *, size_t,
50 enum dma_data_direction);
51 static inline void dma_unmap_single(struct device *dev, dma_addr_t addr,
52 size_t size, enum dma_data_direction dir)
53 {
54 }
56 extern dma_addr_t dma_map_page(struct device *, struct page *,
57 unsigned long, size_t size,
58 enum dma_data_direction);
59 static inline void dma_unmap_page(struct device *dev, dma_addr_t address,
60 size_t size, enum dma_data_direction dir)
61 {
62 }
64 extern int dma_map_sg(struct device *, struct scatterlist *, int,
65 enum dma_data_direction);
66 static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
67 int nhwentries, enum dma_data_direction dir)
68 {
69 }
71 extern void dma_sync_single_for_device(struct device *, dma_addr_t, size_t,
72 enum dma_data_direction);
73 extern void dma_sync_sg_for_device(struct device *, struct scatterlist *, int,
74 enum dma_data_direction);
76 static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
77 size_t size, enum dma_data_direction dir)
78 {
79 }
81 static inline void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
82 int nents, enum dma_data_direction dir)
83 {
84 }
86 static inline int dma_mapping_error(dma_addr_t handle)
87 {
88 return 0;
89 }
91 #endif /* _M68K_DMA_MAPPING_H */