4 #include "types.h" // u32
6 static inline u16 __swab16_constant(u16 val) {
7 return (val<<8) | (val>>8);
9 static inline u32 __swab32_constant(u32 val) {
10 return (val<<24) | ((val&0xff00)<<8) | ((val&0xff0000)>>8) | (val>>24);
12 static inline u64 __swab64_constant(u64 val) {
13 return ((u64)__swab32_constant(val) << 32) | __swab32_constant(val>>32);
15 static inline u32 __swab32(u32 val) {
16 asm("bswapl %0" : "+r"(val));
19 static inline u64 __swab64(u64 val) {
22 o.lo = __swab32(i.hi);
23 o.hi = __swab32(i.lo);
27 #define swab16(x) __swab16_constant(x)
28 #define swab32(x) (__builtin_constant_p((u32)(x)) \
29 ? __swab32_constant(x) : __swab32(x))
30 #define swab64(x) (__builtin_constant_p((u64)(x)) \
31 ? __swab64_constant(x) : __swab64(x))
33 static inline u16 cpu_to_le16(u16 x) {
36 static inline u32 cpu_to_le32(u32 x) {
39 static inline u64 cpu_to_le64(u64 x) {
42 static inline u16 le16_to_cpu(u16 x) {
45 static inline u32 le32_to_cpu(u32 x) {
48 static inline u64 le64_to_cpu(u64 x) {
52 static inline u16 cpu_to_be16(u16 x) {
55 static inline u32 cpu_to_be32(u32 x) {
58 static inline u64 cpu_to_be64(u64 x) {
61 static inline u16 be16_to_cpu(u16 x) {
64 static inline u32 be32_to_cpu(u32 x) {
67 static inline u64 be64_to_cpu(u64 x) {