109 lines
2.0 KiB
C
109 lines
2.0 KiB
C
/*
|
|
* 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
|
|
* struct _caller_saved
|
|
*
|
|
* necessary to instantiate instances of struct k_thread.
|
|
*/
|
|
|
|
#ifndef ZEPHYR_ARCH_ARM_INCLUDE_KERNEL_ARCH_THREAD_H_
|
|
#define ZEPHYR_ARCH_ARM_INCLUDE_KERNEL_ARCH_THREAD_H_
|
|
|
|
#ifndef _ASMLANGUAGE
|
|
#include <zephyr/types.h>
|
|
|
|
struct _caller_saved {
|
|
/*
|
|
* Unused for Cortex-M, which automatically saves the necessary
|
|
* registers in its exception stack frame.
|
|
*
|
|
* For Cortex-A, this may be:
|
|
*
|
|
* u32_t a1; r0
|
|
* u32_t a2; r1
|
|
* u32_t a3; r2
|
|
* u32_t a4; r3
|
|
* u32_t ip; r12
|
|
* u32_t lr; r14
|
|
* u32_t pc; r15
|
|
* u32_t xpsr;
|
|
*/
|
|
};
|
|
|
|
typedef struct _caller_saved _caller_saved_t;
|
|
|
|
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 */
|
|
u32_t psp; /* r13 */
|
|
};
|
|
|
|
typedef struct _callee_saved _callee_saved_t;
|
|
|
|
#ifdef CONFIG_FLOAT
|
|
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;
|
|
|
|
#ifdef CONFIG_FLOAT
|
|
/*
|
|
* 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
|
|
|
|
#ifdef CONFIG_USERSPACE
|
|
u32_t mode;
|
|
u32_t priv_stack_start;
|
|
#endif
|
|
};
|
|
|
|
typedef struct _thread_arch _thread_arch_t;
|
|
|
|
#endif /* _ASMLANGUAGE */
|
|
|
|
#endif /* _kernel_arch_thread__h_ */
|