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/lib/cache-smp.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 arch/x86/lib/cache-smp.c

(limited to 'arch/x86/lib/cache-smp.c')

diff --git a/arch/x86/lib/cache-smp.c b/arch/x86/lib/cache-smp.c
new file mode 100644
index 000000000..7c48ff4ae
--- /dev/null
+++ b/arch/x86/lib/cache-smp.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/smp.h>
+#include <linux/export.h>
+
+static void __wbinvd(void *dummy)
+{
+	wbinvd();
+}
+
+void wbinvd_on_cpu(int cpu)
+{
+	smp_call_function_single(cpu, __wbinvd, NULL, 1);
+}
+EXPORT_SYMBOL(wbinvd_on_cpu);
+
+int wbinvd_on_all_cpus(void)
+{
+	on_each_cpu(__wbinvd, NULL, 1);
+	return 0;
+}
+EXPORT_SYMBOL(wbinvd_on_all_cpus);
-- 
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