| 1 | #ifndef ARCH_ARM_H |
| 2 | #define ARCH_ARM_H |
| 3 | |
| 4 | #define FIO_ARCH (arch_arm) |
| 5 | |
| 6 | #if defined (__ARM_ARCH_4__) || defined (__ARM_ARCH_4T__) \ |
| 7 | || defined (__ARM_ARCH_5__) || defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5E__)\ |
| 8 | || defined (__ARM_ARCH_5TE__) || defined (__ARM_ARCH_5TEJ__) \ |
| 9 | || defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) |
| 10 | #define nop __asm__ __volatile__("mov\tr0,r0\t@ nop\n\t") |
| 11 | #define read_barrier() __asm__ __volatile__ ("" : : : "memory") |
| 12 | #define write_barrier() __asm__ __volatile__ ("" : : : "memory") |
| 13 | #elif defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_8A__) |
| 14 | #define nop __asm__ __volatile__ ("nop") |
| 15 | #define read_barrier() __sync_synchronize() |
| 16 | #define write_barrier() __sync_synchronize() |
| 17 | #else |
| 18 | #error "unsupported ARM architecture" |
| 19 | #endif |
| 20 | |
| 21 | #endif |