| /* |
| * Copyright (c) 2017 Intel Corporation |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @file |
| * @brief Per-arch thread definition |
| * |
| * This file contains definitions for |
| * |
| * struct _thread_arch |
| * struct _callee_saved |
| * |
| * necessary to instantiate instances of struct k_thread. |
| */ |
| |
| #ifndef ZEPHYR_INCLUDE_ARCH_ARM_THREAD_H_ |
| #define ZEPHYR_INCLUDE_ARCH_ARM_THREAD_H_ |
| |
| #ifndef _ASMLANGUAGE |
| #include <zephyr/types.h> |
| |
| struct _callee_saved { |
| u32_t v1; /* r4 */ |
| u32_t v2; /* r5 */ |
| u32_t v3; /* r6 */ |
| u32_t v4; /* r7 */ |
| u32_t v5; /* r8 */ |
| u32_t v6; /* r9 */ |
| u32_t v7; /* r10 */ |
| u32_t v8; /* r11 */ |
| #if defined(CONFIG_CPU_CORTEX_R) |
| u32_t spsr;/* r12 */ |
| u32_t psp; /* r13 */ |
| u32_t lr; /* r14 */ |
| #else |
| u32_t psp; /* r13 */ |
| #endif |
| }; |
| |
| typedef struct _callee_saved _callee_saved_t; |
| |
| #if defined(CONFIG_FLOAT) && defined(CONFIG_FP_SHARING) |
| struct _preempt_float { |
| float s16; |
| float s17; |
| float s18; |
| float s19; |
| float s20; |
| float s21; |
| float s22; |
| float s23; |
| float s24; |
| float s25; |
| float s26; |
| float s27; |
| float s28; |
| float s29; |
| float s30; |
| float s31; |
| }; |
| #endif |
| |
| struct _thread_arch { |
| |
| /* interrupt locking key */ |
| u32_t basepri; |
| |
| /* r0 in stack frame cannot be written to reliably */ |
| u32_t swap_return_value; |
| |
| #if defined(CONFIG_FLOAT) && defined(CONFIG_FP_SHARING) |
| /* |
| * No cooperative floating point register set structure exists for |
| * the Cortex-M as it automatically saves the necessary registers |
| * in its exception stack frame. |
| */ |
| struct _preempt_float preempt_float; |
| #endif |
| |
| #if defined(CONFIG_USERSPACE) || defined(CONFIG_FP_SHARING) |
| u32_t mode; |
| #if defined(CONFIG_USERSPACE) |
| u32_t priv_stack_start; |
| #endif |
| #endif |
| }; |
| |
| typedef struct _thread_arch _thread_arch_t; |
| |
| #endif /* _ASMLANGUAGE */ |
| |
| #endif /* ZEPHYR_INCLUDE_ARCH_ARM_THREAD_H_ */ |