67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
/*
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* Copyright (c) 2017 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief Per-arch thread definition
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*
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* This file contains definitions for
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*
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* struct _thread_arch
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* struct _callee_saved
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* struct _caller_saved
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*
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* necessary to instantiate instances of struct k_thread.
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*/
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#ifndef ZEPHYR_ARCH_RISCV32_INCLUDE_KERNEL_ARCH_THREAD_H_
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#define ZEPHYR_ARCH_RISCV32_INCLUDE_KERNEL_ARCH_THREAD_H_
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#ifndef _ASMLANGUAGE
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#include <zephyr/types.h>
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/*
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* The following structure defines the list of registers that need to be
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* saved/restored when a cooperative context switch occurs.
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*/
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struct _callee_saved {
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u32_t sp; /* Stack pointer, (x2 register) */
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u32_t s0; /* saved register/frame pointer */
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u32_t s1; /* saved register */
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u32_t s2; /* saved register */
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u32_t s3; /* saved register */
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u32_t s4; /* saved register */
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u32_t s5; /* saved register */
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u32_t s6; /* saved register */
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u32_t s7; /* saved register */
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u32_t s8; /* saved register */
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u32_t s9; /* saved register */
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u32_t s10; /* saved register */
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u32_t s11; /* saved register */
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};
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typedef struct _callee_saved _callee_saved_t;
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struct _caller_saved {
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/*
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* Nothing here, the exception code puts all the caller-saved
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* registers onto the stack.
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*/
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};
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typedef struct _caller_saved _caller_saved_t;
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struct _thread_arch {
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u32_t swap_return_value; /* Return value of _Swap() */
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};
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typedef struct _thread_arch _thread_arch_t;
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#endif /* _ASMLANGUAGE */
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#endif /* ZEPHYR_ARCH_RISCV32_INCLUDE_KERNEL_ARCH_THREAD_H_ */
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