From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:49:45 +0200
Subject: Adding upstream version 6.1.76.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 arch/x86/kernel/cpu/mce/threshold.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 arch/x86/kernel/cpu/mce/threshold.c

(limited to 'arch/x86/kernel/cpu/mce/threshold.c')

diff --git a/arch/x86/kernel/cpu/mce/threshold.c b/arch/x86/kernel/cpu/mce/threshold.c
new file mode 100644
index 000000000..6a059a035
--- /dev/null
+++ b/arch/x86/kernel/cpu/mce/threshold.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Common corrected MCE threshold handler code:
+ */
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+
+#include <asm/irq_vectors.h>
+#include <asm/traps.h>
+#include <asm/apic.h>
+#include <asm/mce.h>
+#include <asm/trace/irq_vectors.h>
+
+#include "internal.h"
+
+static void default_threshold_interrupt(void)
+{
+	pr_err("Unexpected threshold interrupt at vector %x\n",
+		THRESHOLD_APIC_VECTOR);
+}
+
+void (*mce_threshold_vector)(void) = default_threshold_interrupt;
+
+DEFINE_IDTENTRY_SYSVEC(sysvec_threshold)
+{
+	trace_threshold_apic_entry(THRESHOLD_APIC_VECTOR);
+	inc_irq_stat(irq_threshold_count);
+	mce_threshold_vector();
+	trace_threshold_apic_exit(THRESHOLD_APIC_VECTOR);
+	ack_APIC_irq();
+}
-- 
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