81 lines
1.4 KiB
C
81 lines
1.4 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2006-2018, RT-Thread Development Team
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*
|
||
|
|
* Change Logs:
|
||
|
|
* Date Author Notes
|
||
|
|
* 2018/12/23 Bernard The first version
|
||
|
|
* 2018/12/27 Jesven Add secondary cpu boot
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <rthw.h>
|
||
|
|
#include <rtthread.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#include "board.h"
|
||
|
|
#include <encoding.h>
|
||
|
|
#include <clint.h>
|
||
|
|
#include <atomic.h>
|
||
|
|
|
||
|
|
#ifdef RT_USING_SMP
|
||
|
|
|
||
|
|
int rt_hw_cpu_id(void)
|
||
|
|
{
|
||
|
|
return read_csr(mhartid);
|
||
|
|
}
|
||
|
|
|
||
|
|
void rt_hw_spin_lock(rt_hw_spinlock_t *lock)
|
||
|
|
{
|
||
|
|
spinlock_lock((spinlock_t *)lock);
|
||
|
|
}
|
||
|
|
|
||
|
|
void rt_hw_spin_unlock(rt_hw_spinlock_t *lock)
|
||
|
|
{
|
||
|
|
spinlock_unlock((spinlock_t *)lock);
|
||
|
|
}
|
||
|
|
|
||
|
|
void rt_hw_ipi_send(int ipi_vector, unsigned int cpu_mask)
|
||
|
|
{
|
||
|
|
int idx;
|
||
|
|
|
||
|
|
for (idx = 0; idx < RT_CPUS_NR; idx ++)
|
||
|
|
{
|
||
|
|
if (cpu_mask & (1 << idx))
|
||
|
|
{
|
||
|
|
clint_ipi_send(idx);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
extern rt_base_t secondary_boot_flag;
|
||
|
|
void rt_hw_secondary_cpu_up(void)
|
||
|
|
{
|
||
|
|
mb();
|
||
|
|
secondary_boot_flag = 0xa55a;
|
||
|
|
}
|
||
|
|
|
||
|
|
extern void rt_hw_scondary_interrupt_init(void);
|
||
|
|
extern int rt_hw_tick_init(void);
|
||
|
|
extern int rt_hw_clint_ipi_enable(void);
|
||
|
|
|
||
|
|
void secondary_cpu_c_start(void)
|
||
|
|
{
|
||
|
|
rt_hw_spin_lock(&_cpus_lock);
|
||
|
|
|
||
|
|
/* initialize interrupt controller */
|
||
|
|
rt_hw_scondary_interrupt_init();
|
||
|
|
|
||
|
|
rt_hw_tick_init();
|
||
|
|
|
||
|
|
rt_hw_clint_ipi_enable();
|
||
|
|
|
||
|
|
rt_system_scheduler_start();
|
||
|
|
}
|
||
|
|
|
||
|
|
void rt_hw_secondary_cpu_idle_exec(void)
|
||
|
|
{
|
||
|
|
asm volatile ("wfi");
|
||
|
|
}
|
||
|
|
#endif /*RT_USING_SMP*/
|