projects / mirror_ubuntu-eoan-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| cfcac2f7 HH |
1 | #ifndef _BLACKFIN_SWAB_H |
| 2 | #define _BLACKFIN_SWAB_H | |
| 3 | ||
| 350eb8b3 | 4 | #include <linux/types.h> |
| cfcac2f7 HH |
5 | #include <linux/compiler.h> |
| 6 | ||
| 7 | #if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__) | |
| 8 | # define __SWAB_64_THRU_32__ | |
| 9 | #endif | |
| 10 | ||
| 11 | #ifdef __GNUC__ | |
| 12 | ||
| 13 | static __inline__ __attribute_const__ __u32 __arch_swahb32(__u32 xx) | |
| 14 | { | |
| 15 | __u32 tmp; | |
| 16 | __asm__("%1 = %0 >> 8 (V);\n\t" | |
| 17 | "%0 = %0 << 8 (V);\n\t" | |
| 18 | "%0 = %0 | %1;\n\t" | |
| 19 | : "+d"(xx), "=&d"(tmp)); | |
| 20 | return xx; | |
| 21 | } | |
| 22 | #define __arch_swahb32 __arch_swahb32 | |
| 23 | ||
| 24 | static __inline__ __attribute_const__ __u32 __arch_swahw32(__u32 xx) | |
| 25 | { | |
| 26 | __u32 rv; | |
| 27 | __asm__("%0 = PACK(%1.L, %1.H);\n\t": "=d"(rv): "d"(xx)); | |
| 28 | return rv; | |
| 29 | } | |
| 30 | #define __arch_swahw32 __arch_swahw32 | |
| 31 | ||
| 32 | static __inline__ __attribute_const__ __u32 __arch_swab32(__u32 xx) | |
| 33 | { | |
| 34 | return __arch_swahb32(__arch_swahw32(xx)); | |
| 35 | } | |
| 36 | #define __arch_swab32 __arch_swab32 | |
| 37 | ||
| 38 | static __inline__ __attribute_const__ __u16 __arch_swab16(__u16 xx) | |
| 39 | { | |
| 40 | __u32 xw = xx; | |
| 41 | __asm__("%0 <<= 8;\n %0.L = %0.L + %0.H (NS);\n": "+d"(xw)); | |
| 42 | return (__u16)xw; | |
| 43 | } | |
| 44 | #define __arch_swab16 __arch_swab16 | |
| 45 | ||
| 46 | #endif /* __GNUC__ */ | |
| 47 | ||
| 48 | #endif /* _BLACKFIN_SWAB_H */ |