| /* |
| * Copyright (c) 2019 Carlo Caione <ccaione@baylibre.com> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| /** |
| * @file |
| * @brief Private kernel definitions (ARM) |
| * |
| * This file contains private kernel function definitions and various |
| * other definitions for the 32-bit ARM Cortex-A/R processor architecture |
| * family. |
| * |
| * 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 ZEPHYR_ARCH_ARM_INCLUDE_CORTEX_A_R_KERNEL_ARCH_FUNC_H_ |
| #define ZEPHYR_ARCH_ARM_INCLUDE_CORTEX_A_R_KERNEL_ARCH_FUNC_H_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #ifndef _ASMLANGUAGE |
| #ifdef CONFIG_ARM_MPU |
| extern void z_arm_configure_static_mpu_regions(void); |
| extern int z_arm_mpu_init(void); |
| #endif /* CONFIG_ARM_MPU */ |
| #ifdef CONFIG_ARM_AARCH32_MMU |
| extern int z_arm_mmu_init(void); |
| #endif /* CONFIG_ARM_AARCH32_MMU */ |
| |
| static ALWAYS_INLINE void arch_kernel_init(void) |
| { |
| #if defined(CONFIG_ARM_MPU) |
| z_arm_mpu_init(); |
| /* Configure static memory map. This will program MPU regions, |
| * to set up access permissions for fixed memory sections, such |
| * as Application Memory or No-Cacheable SRAM area. |
| * |
| * This function is invoked once, upon system initialization. |
| */ |
| z_arm_configure_static_mpu_regions(); |
| #endif /* CONFIG_ARM_MPU */ |
| #if defined(CONFIG_ARM_AARCH32_MMU) |
| z_arm_mmu_init(); |
| #endif /* CONFIG_ARM_AARCH32_MMU */ |
| } |
| |
| static ALWAYS_INLINE void |
| arch_thread_return_value_set(struct k_thread *thread, unsigned int value) |
| { |
| thread->arch.swap_return_value = value; |
| } |
| |
| extern FUNC_NORETURN void z_arm_userspace_enter(k_thread_entry_t user_entry, |
| void *p1, void *p2, void *p3, |
| uint32_t stack_end, |
| uint32_t stack_start); |
| |
| extern void z_arm_fatal_error(unsigned int reason, const z_arch_esf_t *esf); |
| |
| #endif /* _ASMLANGUAGE */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* ZEPHYR_ARCH_ARM_INCLUDE_CORTEX_A_R_KERNEL_ARCH_FUNC_H_ */ |