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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 503 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Enrico Weigelt <info@metux.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204653.811534538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
43 lines
803 B
C
43 lines
803 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Definitions specific to SMP platforms.
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*
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* Copyright (C) 2013 ARM Ltd.
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*/
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#ifndef __ASM_SMP_PLAT_H
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#define __ASM_SMP_PLAT_H
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#include <linux/cpumask.h>
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#include <asm/types.h>
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struct mpidr_hash {
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u64 mask;
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u32 shift_aff[4];
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u32 bits;
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};
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extern struct mpidr_hash mpidr_hash;
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static inline u32 mpidr_hash_size(void)
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{
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return 1 << mpidr_hash.bits;
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}
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/*
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* Retrieve logical cpu index corresponding to a given MPIDR.Aff*
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* - mpidr: MPIDR.Aff* bits to be used for the look-up
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*
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* Returns the cpu logical index or -EINVAL on look-up error
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*/
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static inline int get_logical_index(u64 mpidr)
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{
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int cpu;
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for (cpu = 0; cpu < nr_cpu_ids; cpu++)
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if (cpu_logical_map(cpu) == mpidr)
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return cpu;
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return -EINVAL;
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}
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#endif /* __ASM_SMP_PLAT_H */
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