modify XiUOS DIR : (1.add plc_demo in APP_Framework/control_app; 2.add industrial_network、industrial_fieldbus and industrial_wlan; 3.add XiZi_AIoT and modify XiZi as XiZi_IIoT.)

Ubiquitous/XiZi_IIoT/arch/risc-v/k210/smp_support.c

@@ -0,0 +1,83 @@
+/*
+ * 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 InitHwSecondaryInterrupt(void);
+extern int InitHwTick(void);
+extern int EnableHwclintIpi(void);
+
+void SecondaryCpuCStart(void)
+{
+    HwLockSpinlock(&AssignSpinLock);
+    InitHwSecondaryInterrupt();
+
+    InitHwTick();
+
+    EnableHwclintIpi();
+
+    StartupOsAssign();
+}
+