151 lines
3.8 KiB
C
151 lines
3.8 KiB
C
/*
|
|
* Copyright (c) 2010-2012, 2014-2015 Wind River Systems, Inc.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief Architecture-independent private kernel APIs
|
|
*
|
|
* This file contains private kernel APIs that are not architecture-specific.
|
|
*/
|
|
|
|
#ifndef ZEPHYR_KERNEL_INCLUDE_KERNEL_INTERNAL_H_
|
|
#define ZEPHYR_KERNEL_INCLUDE_KERNEL_INTERNAL_H_
|
|
|
|
#include <kernel.h>
|
|
#include <kernel_arch_interface.h>
|
|
#include <string.h>
|
|
|
|
#ifndef _ASMLANGUAGE
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Early boot functions */
|
|
|
|
void z_bss_zero(void);
|
|
#ifdef CONFIG_XIP
|
|
void z_data_copy(void);
|
|
#else
|
|
static inline void z_data_copy(void)
|
|
{
|
|
/* Do nothing */
|
|
}
|
|
#endif
|
|
FUNC_NORETURN void z_cstart(void);
|
|
|
|
extern FUNC_NORETURN void z_thread_entry(k_thread_entry_t entry,
|
|
void *p1, void *p2, void *p3);
|
|
|
|
extern void z_setup_new_thread(struct k_thread *new_thread,
|
|
k_thread_stack_t *stack, size_t stack_size,
|
|
k_thread_entry_t entry,
|
|
void *p1, void *p2, void *p3,
|
|
int prio, u32_t options, const char *name);
|
|
|
|
static inline void z_new_thread_init(struct k_thread *thread,
|
|
char *stack, size_t stack_size)
|
|
{
|
|
#if !defined(CONFIG_INIT_STACKS) && !defined(CONFIG_THREAD_STACK_INFO)
|
|
ARG_UNUSED(stack);
|
|
ARG_UNUSED(stack_size);
|
|
ARG_UNUSED(thread);
|
|
#endif
|
|
#ifdef CONFIG_INIT_STACKS
|
|
memset(stack, 0xaa, stack_size);
|
|
#endif
|
|
#if defined(CONFIG_THREAD_STACK_INFO)
|
|
thread->stack_info.start = (uintptr_t)stack;
|
|
thread->stack_info.size = stack_size;
|
|
#endif /* CONFIG_THREAD_STACK_INFO */
|
|
}
|
|
|
|
/**
|
|
* @brief Allocate some memory from the current thread's resource pool
|
|
*
|
|
* Threads may be assigned a resource pool, which will be used to allocate
|
|
* memory on behalf of certain kernel and driver APIs. Memory reserved
|
|
* in this way should be freed with k_free().
|
|
*
|
|
* If called from an ISR, the k_malloc() system heap will be used if it exists.
|
|
*
|
|
* @param size Memory allocation size
|
|
* @return A pointer to the allocated memory, or NULL if there is insufficient
|
|
* RAM in the pool or there is no pool to draw memory from
|
|
*/
|
|
void *z_thread_malloc(size_t size);
|
|
|
|
/* set and clear essential thread flag */
|
|
|
|
extern void z_thread_essential_set(void);
|
|
extern void z_thread_essential_clear(void);
|
|
|
|
/* clean up when a thread is aborted */
|
|
|
|
#if defined(CONFIG_THREAD_MONITOR)
|
|
extern void z_thread_monitor_exit(struct k_thread *thread);
|
|
#else
|
|
#define z_thread_monitor_exit(thread) \
|
|
do {/* nothing */ \
|
|
} while (false)
|
|
#endif /* CONFIG_THREAD_MONITOR */
|
|
|
|
#ifdef CONFIG_USE_SWITCH
|
|
/* This is a arch function traditionally, but when the switch-based
|
|
* z_swap() is in use it's a simple inline provided by the kernel.
|
|
*/
|
|
static ALWAYS_INLINE void
|
|
arch_thread_return_value_set(struct k_thread *thread, unsigned int value)
|
|
{
|
|
thread->swap_retval = value;
|
|
}
|
|
#endif
|
|
|
|
static ALWAYS_INLINE void
|
|
z_thread_return_value_set_with_data(struct k_thread *thread,
|
|
unsigned int value,
|
|
void *data)
|
|
{
|
|
arch_thread_return_value_set(thread, value);
|
|
thread->base.swap_data = data;
|
|
}
|
|
|
|
extern void z_smp_init(void);
|
|
|
|
extern void smp_timer_init(void);
|
|
|
|
extern void z_early_boot_rand_get(u8_t *buf, size_t length);
|
|
|
|
#if CONFIG_STACK_POINTER_RANDOM
|
|
extern int z_stack_adjust_initialized;
|
|
#endif
|
|
|
|
#ifdef CONFIG_BOOT_TIME_MEASUREMENT
|
|
extern u32_t z_timestamp_main; /* timestamp when main task starts */
|
|
extern u32_t z_timestamp_idle; /* timestamp when CPU goes idle */
|
|
#endif
|
|
|
|
extern struct k_thread z_main_thread;
|
|
|
|
|
|
#ifdef CONFIG_MULTITHREADING
|
|
extern struct k_thread z_idle_threads[CONFIG_MP_NUM_CPUS];
|
|
#endif
|
|
extern K_THREAD_STACK_ARRAY_DEFINE(z_interrupt_stacks, CONFIG_MP_NUM_CPUS,
|
|
CONFIG_ISR_STACK_SIZE);
|
|
|
|
#ifdef CONFIG_GEN_PRIV_STACKS
|
|
extern u8_t *z_priv_stack_find(k_thread_stack_t *stack);
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _ASMLANGUAGE */
|
|
|
|
#endif /* ZEPHYR_KERNEL_INCLUDE_KERNEL_INTERNAL_H_ */
|