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hrt: Add interface functions for latency counters

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Add interface functions for fetching latency buckets and counters and use
those in perf_counter.cpp. This cleans up the usage of perf counters, when variables defined in hrt_drv are not referenced directly from perf.

This also enables implementing kernel-userspace interface for those for
nuttx protected/kernel build.

Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
This commit is contained in:
Jukka Laitinen
2021-11-09 21:24:25 -05:00
committed by Daniel Agar
parent da51177382
commit 9299a5c3f6
3 changed files with 58 additions and 8 deletions
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platforms/nuttx/src/px4/stm/stm32_common/hrt/hrt.c
+17
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@@ -988,4 +988,21 @@ hrt_call_delay(struct hrt_call *entry, hrt_abstime delay)
entry->deadline = hrt_absolute_time() + delay;
}
#if !defined(CONFIG_BUILD_FLAT)
/* These functions are inlined in all but NuttX protected/kernel builds */
latency_info_t get_latency(uint16_t bucket_idx, uint16_t counter_idx)
{
latency_info_t ret = {latency_buckets[bucket_idx], latency_counters[counter_idx]};
return ret;
}
void reset_latency_counters(void)
{
for (int i = 0; i <= get_latency_bucket_count(); i++) {
latency_counters[i] = 0;
}
}
#endif
#endif /* HRT_TIMER */