82 lines
2.0 KiB
C
82 lines
2.0 KiB
C
/*
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* Copyright (c) 2014 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 Interrupt helper functions (ARC)
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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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#ifndef ZEPHYR_ARCH_ARC_INCLUDE_V2_IRQ_H_
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#define ZEPHYR_ARCH_ARC_INCLUDE_V2_IRQ_H_
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#include <arch/cpu.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define _ARC_V2_AUX_IRQ_CTRL_BLINK (1 << 9)
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#define _ARC_V2_AUX_IRQ_CTRL_LOOP_REGS (1 << 10)
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#define _ARC_V2_AUX_IRQ_CTRL_U (1 << 11)
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#define _ARC_V2_AUX_IRQ_CTRL_LP (1 << 13)
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#define _ARC_V2_AUX_IRQ_CTRL_14_REGS 7
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#define _ARC_V2_AUX_IRQ_CTRL_16_REGS 8
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#define _ARC_V2_AUX_IRQ_CTRL_32_REGS 16
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#ifdef CONFIG_ARC_SECURE_FIRMWARE
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#define _ARC_V2_DEF_IRQ_LEVEL (ARC_N_IRQ_START_LEVEL - 1)
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#else
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#define _ARC_V2_DEF_IRQ_LEVEL (CONFIG_NUM_IRQ_PRIO_LEVELS - 1)
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#endif
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#define _ARC_V2_WAKE_IRQ_LEVEL _ARC_V2_DEF_IRQ_LEVEL
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/*
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* INIT_IRQ_LOCK_KEY is init interrupt level setting of a thread.
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* It's configured by seti instruction when a thread starts to run
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*, i.e., z_thread_entry_wrapper and z_user_thread_entry_wrapper
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*/
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#define _ARC_V2_INIT_IRQ_LOCK_KEY (0x10 | _ARC_V2_DEF_IRQ_LEVEL)
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#ifndef _ASMLANGUAGE
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/*
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* z_irq_setup
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*
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* Configures interrupt handling parameters
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*/
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static ALWAYS_INLINE void z_irq_setup(void)
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{
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uint32_t aux_irq_ctrl_value = (
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_ARC_V2_AUX_IRQ_CTRL_LOOP_REGS | /* save lp_xxx registers */
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#ifdef CONFIG_CODE_DENSITY
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_ARC_V2_AUX_IRQ_CTRL_LP | /* save code density registers */
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#endif
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_ARC_V2_AUX_IRQ_CTRL_BLINK | /* save blink */
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_ARC_V2_AUX_IRQ_CTRL_14_REGS /* save r0 -> r13 (caller-saved) */
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);
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z_arc_cpu_sleep_mode = _ARC_V2_WAKE_IRQ_LEVEL;
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#ifdef CONFIG_ARC_NORMAL_FIRMWARE
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/* normal mode cannot write irq_ctrl, ignore it */
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aux_irq_ctrl_value = aux_irq_ctrl_value;
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#else
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z_arc_v2_aux_reg_write(_ARC_V2_AUX_IRQ_CTRL, aux_irq_ctrl_value);
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#endif
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}
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#endif /* _ASMLANGUAGE */
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#ifdef __cplusplus
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}
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#endif
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#endif /* ZEPHYR_ARCH_ARC_INCLUDE_V2_IRQ_H_ */
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