forked from xuos/xiuos
84 lines
1.6 KiB
C
84 lines
1.6 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
|
|
*/
|
|
|
|
/*************************************************
|
|
File name: smp_support.c
|
|
Description: SMP support routines
|
|
Others: take RT-Thread v4.0.2/libcpu/risc-v/k210/cpuport_smp.c
|
|
https://github.com/RT-Thread/rt-thread/tree/v4.0.2
|
|
History:
|
|
1. Date: 2021-04-25
|
|
Author: AIIT XUOS Lab
|
|
*************************************************/
|
|
|
|
#include "board.h"
|
|
#include <bsp_atomic.h>
|
|
#include <clint.h>
|
|
#include <encoding.h>
|
|
#include <xs_spinlock.h>
|
|
#include <stdint.h>
|
|
#include <xs_assign.h>
|
|
|
|
|
|
|
|
void HwSendIpi(int ipi_vector, unsigned int cpu_mask)
|
|
{
|
|
int idx;
|
|
|
|
for (idx = 0; idx < CPU_NUMBERS; idx ++)
|
|
if (cpu_mask & (1 << idx))
|
|
clint_ipi_send(idx);
|
|
}
|
|
|
|
int GetCpuId(void)
|
|
{
|
|
return READ_CSR(mhartid);
|
|
}
|
|
|
|
void InitHwSpinlock(HwSpinlock *lock)
|
|
{
|
|
((spinlock_t *)lock)->lock = 0;
|
|
}
|
|
|
|
void HwLockSpinlock(HwSpinlock *lock)
|
|
{
|
|
spinlock_lock((spinlock_t *)lock);
|
|
}
|
|
|
|
void HwUnlockSpinlock(HwSpinlock *lock)
|
|
{
|
|
spinlock_unlock((spinlock_t *)lock);
|
|
}
|
|
|
|
extern uint64 cpu2_boot_flag;
|
|
void StartupSecondaryCpu(void)
|
|
{
|
|
mb();
|
|
cpu2_boot_flag = 0x2018050420191010;
|
|
}
|
|
|
|
extern void InitHwScondaryInterrupt(void);
|
|
extern int InitHwTick(void);
|
|
extern int EnableHwclintIpi(void);
|
|
|
|
void SecondaryCpuCStart(void)
|
|
{
|
|
HwLockSpinlock(&AssignSpinLock);
|
|
InitHwScondaryInterrupt();
|
|
|
|
InitHwTick();
|
|
|
|
EnableHwclintIpi();
|
|
|
|
StartupOsAssign();
|
|
}
|
|
|