32 lines
688 B
C
32 lines
688 B
C
/*
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* Copyright (c) 2023 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/toolchain.h>
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#include <zephyr/sys/util_macro.h>
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#ifdef CONFIG_XTENSA_MORE_SPIN_RELAX_NOPS
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/* Some compilers might "optimize out" (i.e. remove) continuous NOPs.
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* So force no optimization to avoid that.
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*/
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__no_optimization
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void arch_spin_relax(void)
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{
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#define NOP1(_, __) __asm__ volatile("nop.n;");
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LISTIFY(CONFIG_XTENSA_NUM_SPIN_RELAX_NOPS, NOP1, (;))
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#undef NOP1
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}
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#endif /* CONFIG_XTENSA_MORE_SPIN_RELAX_NOPS */
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/**
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* init for multi-core/smp is done on the SoC level. Add this here for
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* compatibility with other SMP systems.
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*/
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int arch_smp_init(void)
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{
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return 0;
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}
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