909ff45f0c
Moves the arch_swap() declaration out of kernel_arch_interface.h and into the various architectures' kernel_arch_func.h. This permits the arch_swap() to be inlined on ARM, but extern'd on the other architectures that still implement arch_swap(). Inlining this function on ARM has shown at least a +5% performance boost according to the thread_metric benchmark on the disco_l475_iot1 board. Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
/*
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* Copyright (c) 2016 Wind River Systems, Inc.
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* Copyright (c) 2018 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/* this file is only meant to be included by kernel_structs.h */
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#ifndef ZEPHYR_ARCH_X86_INCLUDE_IA32_KERNEL_ARCH_FUNC_H_
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#define ZEPHYR_ARCH_X86_INCLUDE_IA32_KERNEL_ARCH_FUNC_H_
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#ifndef _ASMLANGUAGE
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#include <stddef.h> /* For size_t */
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#include <zephyr/platform/hooks.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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static inline void arch_kernel_init(void)
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{
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#ifdef CONFIG_SOC_PER_CORE_INIT_HOOK
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soc_per_core_init_hook();
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#endif /* CONFIG_SOC_PER_CORE_INIT_HOOK */
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}
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static ALWAYS_INLINE void
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arch_thread_return_value_set(struct k_thread *thread, unsigned int value)
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{
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/* write into 'eax' slot created in z_swap() entry */
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*(unsigned int *)(thread->callee_saved.esp) = value;
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}
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extern void arch_cpu_atomic_idle(unsigned int key);
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int arch_swap(unsigned int key);
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/* ASM code to fiddle with registers to enable the MMU with PAE paging */
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void z_x86_enable_paging(void);
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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_X86_INCLUDE_IA32_KERNEL_ARCH_FUNC_H_ */
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