1 /* 2 * Copyright (c) 2017 Intel Corporation 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 /** 8 * @file 9 * @brief Per-arch thread definition 10 * 11 * This file contains definitions for 12 * 13 * struct _thread_arch 14 * struct _callee_saved 15 * 16 * necessary to instantiate instances of struct k_thread. 17 */ 18 19 #ifndef ZEPHYR_INCLUDE_ARCH_ARC_THREAD_H_ 20 #define ZEPHYR_INCLUDE_ARCH_ARC_THREAD_H_ 21 22 /* 23 * Reason a thread has relinquished control. 24 */ 25 #define _CAUSE_NONE 0 26 #define _CAUSE_COOP 1 27 #define _CAUSE_RIRQ 2 28 #define _CAUSE_FIRQ 3 29 30 #ifndef _ASMLANGUAGE 31 #include <zephyr/types.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 struct _callee_saved { 38 uintptr_t sp; /* r28 */ 39 }; 40 typedef struct _callee_saved _callee_saved_t; 41 42 struct _thread_arch { 43 44 /* one of the _CAUSE_xxxx definitions above */ 45 int32_t relinquish_cause; 46 47 #ifdef CONFIG_ARC_STACK_CHECKING 48 /* High address of stack region, stack grows downward from this 49 * location. Usesd for hardware stack checking 50 */ 51 uintptr_t k_stack_base; 52 uintptr_t k_stack_top; 53 #ifdef CONFIG_USERSPACE 54 uintptr_t u_stack_base; 55 uintptr_t u_stack_top; 56 #endif 57 #endif 58 59 #ifdef CONFIG_USERSPACE 60 uintptr_t priv_stack_start; 61 #endif 62 }; 63 64 typedef struct _thread_arch _thread_arch_t; 65 66 #ifdef __cplusplus 67 } 68 #endif 69 70 #endif /* _ASMLANGUAGE */ 71 72 73 #endif /* ZEPHYR_INCLUDE_ARCH_ARC_THREAD_H_ */ 74
