| /* |
| * Copyright (c) 2014-2016 Wind River Systems, Inc. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @file |
| * @brief Private kernel definitions |
| * |
| * This file contains private kernel structures definitions and various |
| * other definitions for the ARCv2 processor architecture. |
| * |
| * This file is also included by assembly language files which must #define |
| * _ASMLANGUAGE before including this header file. Note that kernel |
| * assembly source files obtains structure offset values via "absolute |
| * symbols" in the offsets.o module. |
| */ |
| |
| #ifndef _kernel_arch_func__h_ |
| #define _kernel_arch_func__h_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #if !defined(_ASMLANGUAGE) |
| |
| #ifdef CONFIG_CPU_ARCV2 |
| #include <v2/cache.h> |
| #include <v2/irq.h> |
| #endif |
| |
| static ALWAYS_INLINE void kernel_arch_init(void) |
| { |
| _irq_setup(); |
| } |
| |
| static ALWAYS_INLINE void |
| _set_thread_return_value(struct k_thread *thread, unsigned int value) |
| { |
| thread->arch.return_value = value; |
| } |
| |
| static ALWAYS_INLINE int _is_in_isr(void) |
| { |
| u32_t act = _arc_v2_aux_reg_read(_ARC_V2_AUX_IRQ_ACT); |
| #if CONFIG_IRQ_OFFLOAD |
| /* Check if we're in a TRAP_S exception as well */ |
| if (_arc_v2_aux_reg_read(_ARC_V2_STATUS32) & _ARC_V2_STATUS32_AE && |
| _ARC_V2_ECR_VECTOR(_arc_v2_aux_reg_read(_ARC_V2_ECR)) == EXC_EV_TRAP |
| ) { |
| return 1; |
| } |
| #endif |
| return ((act & 0xffff) != 0); |
| } |
| |
| /** |
| * |
| * @brief Indicates the interrupt number of the highest priority |
| * active interrupt |
| * |
| * @return IRQ number |
| */ |
| static ALWAYS_INLINE int _INTERRUPT_CAUSE(void) |
| { |
| u32_t irq_num = _arc_v2_aux_reg_read(_ARC_V2_ICAUSE); |
| |
| return irq_num; |
| } |
| |
| |
| extern void _thread_entry_wrapper(void); |
| extern void _user_thread_entry_wrapper(void); |
| |
| static inline void _IntLibInit(void) |
| { |
| /* nothing needed, here because the kernel requires it */ |
| } |
| |
| extern void _arc_userspace_enter(k_thread_entry_t user_entry, void *p1, |
| void *p2, void *p3, u32_t stack, u32_t size); |
| |
| #endif /* _ASMLANGUAGE */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* _kernel_arch_func__h_ */ |