/*
* Architectures without cache coherency need something like the following:
*
- * #define cmm_mc() arch_cache_flush()
+ * #define cmm_mc() arch_cache_flush()
* #define cmm_rmc() arch_cache_flush_read()
* #define cmm_wmc() arch_cache_flush_write()
*
#define caa_cpu_relax() cmm_barrier()
#endif
+#ifndef HAS_CAA_GET_CYCLES
+#define HAS_CAA_GET_CYCLES
+
+#include <time.h>
+#include <stdint.h>
+
+typedef uint64_t caa_cycles_t;
+
+static inline caa_cycles_t caa_get_cycles (void)
+{
+ struct timespec ts;
+
+ if (caa_unlikely(clock_gettime(CLOCK_MONOTONIC, &ts)))
+ return -1ULL;
+ return ((uint64_t) ts.tv_sec * 1000000000ULL) + ts.tv_nsec;
+}
+#endif /* HAS_CAA_GET_CYCLES */
+
#ifdef __cplusplus
}
#endif