8affac64a7
Make it optimal without the need for an SVC/exception roundtrip on every context switch. Performance numbers from tests/benchmarks/sched: Before: unpend 85 ready 58 switch 258 pend 231 tot 632 (avg 699) After: unpend 85 ready 59 switch 115 pend 138 tot 397 (avg 478) Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
41 lines
615 B
C
41 lines
615 B
C
/*
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* Copyright (c) 2019 Carlo Caione <ccaione@baylibre.com>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief Exception/interrupt context helpers for Cortex-A CPUs
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*
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* Exception/interrupt context helpers.
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*/
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#ifndef ZEPHYR_ARCH_ARM64_INCLUDE_EXC_H_
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#define ZEPHYR_ARCH_ARM64_INCLUDE_EXC_H_
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#include <arch/cpu.h>
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#ifdef _ASMLANGUAGE
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/* nothing */
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#else
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#ifdef __cplusplus
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extern "C" {
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#endif
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static ALWAYS_INLINE bool arch_is_in_isr(void)
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{
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return arch_curr_cpu()->nested != 0U;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ASMLANGUAGE */
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#endif /* ZEPHYR_ARCH_ARM64_INCLUDE_EXC_H_ */
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