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- #ifndef _BITS_PROFILE_H
- #define _BITS_PROFILE_H
-
- /** @file
- *
- * Profiling
- *
- */
-
- FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
- #include <stdint.h>
-
- /**
- * Get profiling timestamp
- *
- * @ret timestamp Timestamp
- */
- static inline __attribute__ (( always_inline )) uint64_t
- profile_timestamp ( void ) {
- uint32_t eax;
- uint32_t edx;
-
- /* Read timestamp counter */
- __asm__ __volatile__ ( "rdtsc" : "=a" ( eax ), "=d" ( edx ) );
- return ( ( ( ( uint64_t ) edx ) << 32 ) | eax );
- }
-
- #endif /* _BITS_PROFILE_H */
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