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// SPDX-License-Identifier: GPL-2.0
/* Copyright IBM Corp. 2020 */
#include <linux/compiler.h>
#include <linux/getcpu.h>
#include <asm/timex.h>
int __s390_vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
{
__u16 todval[8];
/* CPU number is stored in the programmable field of the TOD clock */
get_tod_clock_ext((char *)todval);
if (cpu)
*cpu = todval[7];
/* NUMA node is always zero */
if (node)
*node = 0;
return 0;
}
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