ia64/xen-unstable

view xen/include/xen/byteorder/little_endian.h @ 19800:78962f85c562

IOMMU: Add two generic functions to vendor neutral interface

Add 2 generic functions into the vendor neutral iommu interface, The
reason is that from changeset 19732, there is only one global flag
"iommu_enabled" that controls iommu enablement for both vtd and amd
systems, so we need different code paths for vtd and amd iommu systems
if this flag has been turned on. Also, the early checking of
"iommu_enabled" in iommu_setup() is removed to prevent iommu
functionalities from been disabled on amd systems.

Signed-off-by: Wei Wang <wei.wang2@amd.com>
author Keir Fraser <keir.fraser@citrix.com>
date Fri Jun 19 08:41:50 2009 +0100 (2009-06-19)
parents 44eb80f50725
children
line source
1 #ifndef __XEN_BYTEORDER_LITTLE_ENDIAN_H__
2 #define __XEN_BYTEORDER_LITTLE_ENDIAN_H__
4 #ifndef __LITTLE_ENDIAN
5 #define __LITTLE_ENDIAN 1234
6 #endif
7 #ifndef __LITTLE_ENDIAN_BITFIELD
8 #define __LITTLE_ENDIAN_BITFIELD
9 #endif
11 #include <xen/types.h>
12 #include <xen/byteorder/swab.h>
14 #define __constant_cpu_to_le64(x) ((__force __le64)(__u64)(x))
15 #define __constant_le64_to_cpu(x) ((__force __u64)(__le64)(x))
16 #define __constant_cpu_to_le32(x) ((__force __le32)(__u32)(x))
17 #define __constant_le32_to_cpu(x) ((__force __u32)(__le32)(x))
18 #define __constant_cpu_to_le16(x) ((__force __le16)(__u16)(x))
19 #define __constant_le16_to_cpu(x) ((__force __u16)(__le16)(x))
20 #define __constant_cpu_to_be64(x) ((__force __be64)___constant_swab64((x)))
21 #define __constant_be64_to_cpu(x) ___constant_swab64((__force __u64)(__be64)(x))
22 #define __constant_cpu_to_be32(x) ((__force __be32)___constant_swab32((x)))
23 #define __constant_be32_to_cpu(x) ___constant_swab32((__force __u32)(__be32)(x))
24 #define __constant_cpu_to_be16(x) ((__force __be16)___constant_swab16((x)))
25 #define __constant_be16_to_cpu(x) ___constant_swab16((__force __u16)(__be16)(x))
26 #define __cpu_to_le64(x) ((__force __le64)(__u64)(x))
27 #define __le64_to_cpu(x) ((__force __u64)(__le64)(x))
28 #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
29 #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
30 #define __cpu_to_le16(x) ((__force __le16)(__u16)(x))
31 #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
32 #define __cpu_to_be64(x) ((__force __be64)__swab64((x)))
33 #define __be64_to_cpu(x) __swab64((__force __u64)(__be64)(x))
34 #define __cpu_to_be32(x) ((__force __be32)__swab32((x)))
35 #define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
36 #define __cpu_to_be16(x) ((__force __be16)__swab16((x)))
37 #define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x))
39 static inline __le64 __cpu_to_le64p(const __u64 *p)
40 {
41 return (__force __le64)*p;
42 }
43 static inline __u64 __le64_to_cpup(const __le64 *p)
44 {
45 return (__force __u64)*p;
46 }
47 static inline __le32 __cpu_to_le32p(const __u32 *p)
48 {
49 return (__force __le32)*p;
50 }
51 static inline __u32 __le32_to_cpup(const __le32 *p)
52 {
53 return (__force __u32)*p;
54 }
55 static inline __le16 __cpu_to_le16p(const __u16 *p)
56 {
57 return (__force __le16)*p;
58 }
59 static inline __u16 __le16_to_cpup(const __le16 *p)
60 {
61 return (__force __u16)*p;
62 }
63 static inline __be64 __cpu_to_be64p(const __u64 *p)
64 {
65 return (__force __be64)__swab64p(p);
66 }
67 static inline __u64 __be64_to_cpup(const __be64 *p)
68 {
69 return __swab64p((__u64 *)p);
70 }
71 static inline __be32 __cpu_to_be32p(const __u32 *p)
72 {
73 return (__force __be32)__swab32p(p);
74 }
75 static inline __u32 __be32_to_cpup(const __be32 *p)
76 {
77 return __swab32p((__u32 *)p);
78 }
79 static inline __be16 __cpu_to_be16p(const __u16 *p)
80 {
81 return (__force __be16)__swab16p(p);
82 }
83 static inline __u16 __be16_to_cpup(const __be16 *p)
84 {
85 return __swab16p((__u16 *)p);
86 }
87 #define __cpu_to_le64s(x) do {} while (0)
88 #define __le64_to_cpus(x) do {} while (0)
89 #define __cpu_to_le32s(x) do {} while (0)
90 #define __le32_to_cpus(x) do {} while (0)
91 #define __cpu_to_le16s(x) do {} while (0)
92 #define __le16_to_cpus(x) do {} while (0)
93 #define __cpu_to_be64s(x) __swab64s((x))
94 #define __be64_to_cpus(x) __swab64s((x))
95 #define __cpu_to_be32s(x) __swab32s((x))
96 #define __be32_to_cpus(x) __swab32s((x))
97 #define __cpu_to_be16s(x) __swab16s((x))
98 #define __be16_to_cpus(x) __swab16s((x))
100 #include <xen/byteorder/generic.h>
102 #endif /* __XEN_BYTEORDER_LITTLE_ENDIAN_H__ */