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e62e074814
Add missing header <asm/smp.h> on include/asm/smp_plat.h, as it calls function cpu_logical_map(). Also include it on kernel/cpufeature.c since it has calls to functions cpu_panic_kernel() and cpu_die_early(). Both files call functions defined on this header, make the header dependencies less fragile. Signed-off-by: Carlos Bilbao <bilbao@vt.edu> Acked-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/4325940.LvFx2qVVIh@iron-maiden Signed-off-by: Will Deacon <will@kernel.org>
45 lines
824 B
C
45 lines
824 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/smp.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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