[rtems commit] kern_tc.c: Update pps_event() for uniprocessor configurations
Sebastian Huber
sebh at rtems.org
Fri Jun 10 09:06:12 UTC 2022
Module: rtems
Branch: master
Commit: 11621c9c521f7d9fe5e090a06f469b5d41e6be17
Changeset: http://git.rtems.org/rtems/commit/?id=11621c9c521f7d9fe5e090a06f469b5d41e6be17
Author: Gabriel Moyano <gabriel.moyano at dlr.de>
Date: Fri Jun 10 11:05:46 2022 +0200
kern_tc.c: Update pps_event() for uniprocessor configurations
Since pps->capgen equal to zero is not a special value in uniprocessor configurations, there is no need to check for this condition.
Update #2349
---
cpukit/score/src/kern_tc.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/cpukit/score/src/kern_tc.c b/cpukit/score/src/kern_tc.c
index 92739d8edd..78d7fa1e3f 100644
--- a/cpukit/score/src/kern_tc.c
+++ b/cpukit/score/src/kern_tc.c
@@ -2138,9 +2138,11 @@ pps_capture(struct pps_state *pps)
pps->capffth = fftimehands;
#endif
pps->capcount = th->th_counter->tc_get_timecount(th->th_counter);
+#if defined(RTEMS_SMP)
atomic_thread_fence_acq();
if (pps->capgen != th->th_generation)
pps->capgen = 0;
+#endif
}
void
@@ -2165,7 +2167,11 @@ pps_event(struct pps_state *pps, int event)
if ((event & pps->ppsparam.mode) == 0)
return;
/* If the timecounter was wound up underneath us, bail out. */
+#if defined(RTEMS_SMP)
if (pps->capgen == 0 || pps->capgen !=
+#else
+ if (pps->capgen !=
+#endif
atomic_load_acq_int(&pps->capth->th_generation))
return;
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