Cregit: Linux 7.0: getcpu.c

Contributors: 4
Author	Tokens	Token Proportion	Commits	Commit Proportion
Heiko Carstens	56	88.89%	3	50.00%
Martin Schwidefsky	5	7.94%	1	16.67%
Thomas Weißschuh	1	1.59%	1	16.67%
Greg Kroah-Hartman	1	1.59%	1	16.67%
Total	63		6

// SPDX-License-Identifier: GPL-2.0
/* Copyright IBM Corp. 2020 */

#include <linux/compiler.h>
#include <asm/timex.h>
#include "vdso.h"

int __s390_vdso_getcpu(unsigned *cpu, unsigned *node, void *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;
}