projects / fio.git / blame
| Commit | Line | Data |
|---|---|---|
| ebac4655 JA |
1 | #ifndef ARCH_H |
| 2 | #define ARCH_H | |
| 3 | ||
| 4 | enum { | |
| 5 | arch_x86_64, | |
| 6 | arch_i386, | |
| 7 | arch_ppc, | |
| 8 | arch_ia64, | |
| 9 | arch_s390, | |
| 10 | arch_alpha, | |
| 11 | }; | |
| 12 | ||
| 13 | static inline unsigned long generic_ffz(unsigned long word) | |
| 14 | { | |
| 15 | unsigned int i; | |
| 16 | ||
| 17 | for (i = 0; i < sizeof(word) * 8; i++) | |
| 18 | if ((word & (1UL << i)) == 0) | |
| 19 | return i; | |
| 20 | ||
| 21 | return -1; | |
| 22 | } | |
| 23 | ||
| 24 | #if defined(__i386__) | |
| 25 | #include "arch-x86.h" | |
| 26 | #elif defined(__x86_64__) | |
| 27 | #include "arch-x86_64.h" | |
| 28 | #elif defined(__powerpc__) || defined(__powerpc64__) | |
| 29 | #include "arch-ppc.h" | |
| 30 | #elif defined(__ia64__) | |
| 31 | #include "arch-ia64.h" | |
| 32 | #elif defined(__alpha__) | |
| 33 | #include "arch-alpha.h" | |
| 34 | #elif defined(__s390x__) || defined(__s390__) | |
| 35 | #include "arch-s390.h" | |
| 36 | #else | |
| 37 | #error "Unsupported arch" | |
| 38 | #endif | |
| 39 | ||
| 40 | #define BITS_PER_LONG (__WORDSIZE) | |
| 41 | ||
| 42 | #endif |