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/s390/kernel/vdso64/getcpu.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 arch/s390/kernel/vdso64/getcpu.c

(limited to 'arch/s390/kernel/vdso64/getcpu.c')

diff --git a/arch/s390/kernel/vdso64/getcpu.c b/arch/s390/kernel/vdso64/getcpu.c
new file mode 100644
index 000000000..5c5d4a848
--- /dev/null
+++ b/arch/s390/kernel/vdso64/getcpu.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright IBM Corp. 2020 */
+
+#include <linux/compiler.h>
+#include <linux/getcpu.h>
+#include <asm/timex.h>
+#include "vdso.h"
+
+int __s390_vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
+{
+	union tod_clock clk;
+
+	/* CPU number is stored in the programmable field of the TOD clock */
+	store_tod_clock_ext(&clk);
+	if (cpu)
+		*cpu = clk.pf;
+	/* NUMA node is always zero */
+	if (node)
+		*node = 0;
+	return 0;
+}
-- 
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