arch: Add up_perf_getfreq function

it's important to know the perf count frequency

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao
2022-01-26 02:07:43 +08:00
committed by Alan Carvalho de Assis
parent 8be9cb9f72
commit ecccc614bd
5 changed files with 29 additions and 0 deletions
+1
View File
@@ -2577,6 +2577,7 @@ void arch_sporadic_resume(FAR struct tcb_s *tcb);
****************************************************************************/
uint32_t up_perf_gettime(void);
uint32_t up_perf_getfreq(void);
void up_perf_convert(uint32_t elapsed, FAR struct timespec *ts);
#undef EXTERN