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Xtensa ESP32: Remove call to sched_lock()/unock() from inter-cpu interrupt logic. Results in recursive call to sched_mergepending().

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Gregory Nutt
2016-12-25 09:26:20 -06:00
parent b87fc91466
commit c9b15ebb6a
1 changed files with 0 additions and 8 deletions
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arch/xtensa/src/esp32/esp32_intercpu_interrupt.c
-8
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@@ -41,7 +41,6 @@
#include <sys/types.h> #include <sys/types.h>
#include <stdint.h> #include <stdint.h>
#include <sched.h>
#include <assert.h> #include <assert.h>
#include <errno.h> #include <errno.h>
@@ -158,12 +157,6 @@ int xtensa_intercpu_interrupt(int tocpu, int intcode)
DEBUGASSERT((unsigned)tocpu < CONFIG_SMP_NCPUS && DEBUGASSERT((unsigned)tocpu < CONFIG_SMP_NCPUS &&
(unsigned)intcode <= UINT8_MAX); (unsigned)intcode <= UINT8_MAX);
/* Disable context switching so that some other thread does not attempt to
* take the spinlock on the same CPU.
*/
sched_lock();
/* Make sure that each inter-cpu event is atomic. The spinlock should /* Make sure that each inter-cpu event is atomic. The spinlock should
* only be locked if we just completed sending an interrupt to this * only be locked if we just completed sending an interrupt to this
* CPU but the other CPU has not yet processed it. * CPU but the other CPU has not yet processed it.
@@ -195,7 +188,6 @@ int xtensa_intercpu_interrupt(int tocpu, int intcode)
putreg32(DPORT_CPU_INTR_FROM_CPU_1, DPORT_CPU_INTR_FROM_CPU_1_REG); putreg32(DPORT_CPU_INTR_FROM_CPU_1, DPORT_CPU_INTR_FROM_CPU_1_REG);
} }
sched_unlock();
return OK; return OK;
} }