8165f3ad80
As of today during the Zephyr start we - invalidate I$ - disable I$ - enable I$ Given that we don't need to have I$ disabled during any initialization period and ARC processors have caches enabled after reset the I$ disabling/enabling is excessive, so we can drop it. By that we also aligh the I$ initialization on ARC with other projects like U-boot and Linux kernel. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
85 lines
1.8 KiB
C
85 lines
1.8 KiB
C
/*
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* Copyright (c) 2014-2016 Wind River Systems, Inc.
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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 Private kernel definitions
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*
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* This file contains private kernel structures definitions and various
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* other definitions for the ARCv2 processor architecture.
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*
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* This file is also included by assembly language files which must #define
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* _ASMLANGUAGE before including this header file. Note that kernel
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* assembly source files obtains structure offset values via "absolute
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* symbols" in the offsets.o module.
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*/
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#ifndef ZEPHYR_ARCH_ARC_INCLUDE_KERNEL_ARCH_FUNC_H_
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#define ZEPHYR_ARCH_ARC_INCLUDE_KERNEL_ARCH_FUNC_H_
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#if !defined(_ASMLANGUAGE)
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#include <kernel_arch_data.h>
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#ifdef CONFIG_CPU_ARCV2
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#include <v2/irq.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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static ALWAYS_INLINE void arch_kernel_init(void)
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{
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z_irq_setup();
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}
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/**
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*
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* @brief Indicates the interrupt number of the highest priority
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* active interrupt
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*
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* @return IRQ number
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*/
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static ALWAYS_INLINE int Z_INTERRUPT_CAUSE(void)
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{
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uint32_t irq_num = z_arc_v2_aux_reg_read(_ARC_V2_ICAUSE);
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return irq_num;
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}
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static inline bool arch_is_in_isr(void)
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{
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return z_arc_v2_irq_unit_is_in_isr();
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}
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extern void z_thread_entry_wrapper(void);
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extern void z_user_thread_entry_wrapper(void);
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extern void z_arc_userspace_enter(k_thread_entry_t user_entry, void *p1,
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void *p2, void *p3, uint32_t stack, uint32_t size,
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struct k_thread *thread);
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extern void z_arc_fatal_error(unsigned int reason, const z_arch_esf_t *esf);
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extern void arch_sched_ipi(void);
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extern void z_arc_switch(void *switch_to, void **switched_from);
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static inline void arch_switch(void *switch_to, void **switched_from)
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{
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z_arc_switch(switch_to, switched_from);
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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_ARC_INCLUDE_KERNEL_ARCH_FUNC_H_ */
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