22 lines
467 B
C
22 lines
467 B
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright IBM Corp. 2020 */
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#include <linux/compiler.h>
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#include <linux/getcpu.h>
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#include <asm/timex.h>
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#include "vdso.h"
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int __s390_vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
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{
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union tod_clock clk;
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/* CPU number is stored in the programmable field of the TOD clock */
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store_tod_clock_ext(&clk);
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if (cpu)
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*cpu = clk.pf;
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/* NUMA node is always zero */
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if (node)
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*node = 0;
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return 0;
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}
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