| /* |
| * Copyright (c) 2014 Wind River Systems, Inc. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @file |
| * @brief Interrupt helper functions (ARC) |
| * |
| * This file contains private kernel structures definitions and various |
| * other definitions for the ARCv2 processor architecture. |
| */ |
| |
| #ifndef ZEPHYR_ARCH_ARC_INCLUDE_V2_IRQ_H_ |
| #define ZEPHYR_ARCH_ARC_INCLUDE_V2_IRQ_H_ |
| |
| #include <zephyr/arch/cpu.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define _ARC_V2_AUX_IRQ_CTRL_BLINK (1 << 9) |
| #define _ARC_V2_AUX_IRQ_CTRL_LOOP_REGS (1 << 10) |
| #define _ARC_V2_AUX_IRQ_CTRL_U (1 << 11) |
| #define _ARC_V2_AUX_IRQ_CTRL_LP (1 << 13) |
| #define _ARC_V2_AUX_IRQ_CTRL_14_REGS 7 |
| #define _ARC_V2_AUX_IRQ_CTRL_16_REGS 8 |
| #define _ARC_V2_AUX_IRQ_CTRL_32_REGS 16 |
| |
| |
| #ifdef CONFIG_ARC_SECURE_FIRMWARE |
| #define _ARC_V2_DEF_IRQ_LEVEL (ARC_N_IRQ_START_LEVEL - 1) |
| #else |
| #define _ARC_V2_DEF_IRQ_LEVEL (CONFIG_NUM_IRQ_PRIO_LEVELS - 1) |
| #endif |
| |
| #define _ARC_V2_WAKE_IRQ_LEVEL _ARC_V2_DEF_IRQ_LEVEL |
| |
| /* |
| * INIT_IRQ_LOCK_KEY is init interrupt level setting of a thread. |
| * It's configured by seti instruction when a thread starts to run |
| *, i.e., z_thread_entry_wrapper and z_user_thread_entry_wrapper |
| */ |
| #define _ARC_V2_INIT_IRQ_LOCK_KEY (0x10 | _ARC_V2_DEF_IRQ_LEVEL) |
| |
| #ifndef _ASMLANGUAGE |
| /* |
| * z_irq_setup |
| * |
| * Configures interrupt handling parameters |
| */ |
| static ALWAYS_INLINE void z_irq_setup(void) |
| { |
| uint32_t aux_irq_ctrl_value = ( |
| #ifdef CONFIG_ARC_HAS_ZOL |
| _ARC_V2_AUX_IRQ_CTRL_LOOP_REGS | /* save lp_xxx registers */ |
| #endif /* CONFIG_ARC_HAS_ZOL */ |
| #ifdef CONFIG_CODE_DENSITY |
| _ARC_V2_AUX_IRQ_CTRL_LP | /* save code density registers */ |
| #endif |
| _ARC_V2_AUX_IRQ_CTRL_BLINK | /* save blink */ |
| _ARC_V2_AUX_IRQ_CTRL_14_REGS /* save r0 -> r13 (caller-saved) */ |
| ); |
| |
| z_arc_cpu_sleep_mode = _ARC_V2_WAKE_IRQ_LEVEL; |
| |
| #ifdef CONFIG_ARC_NORMAL_FIRMWARE |
| /* normal mode cannot write irq_ctrl, ignore it */ |
| aux_irq_ctrl_value = aux_irq_ctrl_value; |
| #else |
| z_arc_v2_aux_reg_write(_ARC_V2_AUX_IRQ_CTRL, aux_irq_ctrl_value); |
| #endif |
| } |
| |
| #endif /* _ASMLANGUAGE */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* ZEPHYR_ARCH_ARC_INCLUDE_V2_IRQ_H_ */ |