From 2f529f9b558ca1c1bd74be7437a84e4711743404 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 01 Nov 2024 02:11:33 +0000
Subject: [PATCH] add xenomai
---
kernel/arch/arm/kernel/process.c | 26 ++++++++++++++++++++++++++
1 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/kernel/arch/arm/kernel/process.c b/kernel/arch/arm/kernel/process.c
index 47a30ff..d8da49a 100644
--- a/kernel/arch/arm/kernel/process.c
+++ b/kernel/arch/arm/kernel/process.c
@@ -71,6 +71,7 @@
arm_pm_idle();
else
cpu_do_idle();
+ hard_cond_local_irq_enable();
raw_local_irq_enable();
}
@@ -448,3 +449,28 @@
return ret;
}
#endif
+
+#ifdef CONFIG_IRQ_PIPELINE
+
+/*
+ * When pipelining interrupts, we have to reconcile the hardware and
+ * the virtual states. Hard irqs are off on entry while the current
+ * stage has to be unstalled: fix this up by stalling the in-band
+ * stage on entry, unstalling on exit.
+ */
+asmlinkage void __sched arm_preempt_schedule_irq(void)
+{
+ WARN_ON_ONCE(irq_pipeline_debug() && test_inband_stall());
+ stall_inband_nocheck();
+ preempt_schedule_irq();
+ unstall_inband_nocheck();
+}
+
+#else
+
+asmlinkage void __sched arm_preempt_schedule_irq(void)
+{
+ preempt_schedule_irq();
+}
+
+#endif
--
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