[rtems commit] bsps: Do not use fast idle clock for SMP
Sebastian Huber
sebh at rtems.org
Thu Jun 30 07:55:17 UTC 2016
Module: rtems
Branch: master
Commit: 729cf694e863c88fe0f27ed135c1721fff4c266f
Changeset: http://git.rtems.org/rtems/commit/?id=729cf694e863c88fe0f27ed135c1721fff4c266f
Author: Sebastian Huber <sebastian.huber at embedded-brains.de>
Date: Thu Jun 30 06:27:51 2016 +0200
bsps: Do not use fast idle clock for SMP
We may have more than one idle thread. Thus, the clock driver fast idle
logic would be a bit more complicated.
---
c/src/lib/libbsp/shared/clockdrv_shell.h | 28 +++++++++++++++-------------
1 file changed, 15 insertions(+), 13 deletions(-)
diff --git a/c/src/lib/libbsp/shared/clockdrv_shell.h b/c/src/lib/libbsp/shared/clockdrv_shell.h
index 6609f5e..4765873 100644
--- a/c/src/lib/libbsp/shared/clockdrv_shell.h
+++ b/c/src/lib/libbsp/shared/clockdrv_shell.h
@@ -137,19 +137,21 @@ rtems_isr Clock_isr(
Clock_driver_timecounter_tick();
- while (
- _Thread_Heir == _Thread_Executing
- && _Thread_Executing->Start.Entry.Kinds.Idle.entry
- == rtems_configuration_get_idle_task()
- ) {
- ISR_lock_Context lock_context;
-
- _Timecounter_Acquire(&lock_context);
- _Timecounter_Tick_simple(
- interval,
- (*tc->tc_get_timecount)(tc),
- &lock_context
- );
+ if (!rtems_configuration_is_smp_enabled()) {
+ while (
+ _Thread_Heir == _Thread_Executing
+ && _Thread_Executing->Start.Entry.Kinds.Idle.entry
+ == rtems_configuration_get_idle_task()
+ ) {
+ ISR_lock_Context lock_context;
+
+ _Timecounter_Acquire(&lock_context);
+ _Timecounter_Tick_simple(
+ interval,
+ (*tc->tc_get_timecount)(tc),
+ &lock_context
+ );
+ }
}
Clock_driver_support_at_tick();
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