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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 ) {
uint64_t cycles;
/* Read cycle counter */
__asm__ __volatile__ ( "msr PMCR_EL0, %1\n\t"
"mrs %0, PMCCNTR_EL0\n\t"
: "=r" ( cycles ) : "r" ( 1 ) );
return cycles;
}
#endif /* _BITS_PROFILE_H */
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