add cpu up

src/SConscript

@@ -25,9 +25,9 @@ if GetDepend('RT_USING_DEVICE') == False:
     SrcRemove(src, ['device.c'])
 
 if GetDepend('RT_USING_SMP') == False:
-    SrcRemove(src, ['cpu.c', 'scheduler_mp.c'])
+    SrcRemove(src, ['cpu_mp.c', 'scheduler_mp.c'])
 else:
-    SrcRemove(src, ['scheduler_up.c'])
+    SrcRemove(src, ['cpu_up.c', 'scheduler_up.c'])
 
 LOCAL_CFLAGS = ''
 LINKFLAGS = ''

src/cpu_mp.c

@@ -21,7 +21,6 @@
 rt_base_t _cpus_critical_level;
 #endif /* RT_USING_DEBUG */
 
-#ifdef RT_USING_SMP
 static struct rt_cpu _cpus[RT_CPUS_NR];
 rt_hw_spinlock_t _cpus_lock;
 #if defined(RT_DEBUGING_SPINLOCK)
@@ -217,4 +216,3 @@ void rt_cpus_lock_status_restore(struct rt_thread *thread)
     rt_sched_post_ctx_switch(thread);
 }
 RTM_EXPORT(rt_cpus_lock_status_restore);
-#endif /* RT_USING_SMP */

src/cpu_up.c

@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2006-2024, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2024-04-19     Shell        Fixup UP irq spinlock
+ */
+#include <rthw.h>
+#include <rtthread.h>
+
+/**
+ * @brief   Initialize a static spinlock object.
+ *
+ * @param   lock is a pointer to the spinlock to initialize.
+ */
+void rt_spin_lock_init(struct rt_spinlock *lock)
+{
+    RT_UNUSED(lock);
+}
+
+/**
+ * @brief   This function will lock the spinlock, will lock the thread scheduler.
+ *
+ * @note    If the spinlock is locked, the current CPU will keep polling the spinlock state
+ *          until the spinlock is unlocked.
+ *
+ * @param   lock is a pointer to the spinlock.
+ */
+void rt_spin_lock(struct rt_spinlock *lock)
+{
+    RT_UNUSED(lock);
+    rt_enter_critical();
+}
+
+/**
+ * @brief   This function will unlock the spinlock, will unlock the thread scheduler.
+ *
+ * @param   lock is a pointer to the spinlock.
+ */
+void rt_spin_unlock(struct rt_spinlock *lock)
+{
+    RT_UNUSED(lock);
+    rt_exit_critical();
+}
+
+/**
+ * @brief   This function will disable the local interrupt and then lock the spinlock, will lock the thread scheduler.
+ *
+ * @note    If the spinlock is locked, the current CPU will keep polling the spinlock state
+ *          until the spinlock is unlocked.
+ *
+ * @param   lock is a pointer to the spinlock.
+ *
+ * @return  Return current cpu interrupt status.
+ */
+rt_base_t rt_spin_lock_irqsave(struct rt_spinlock *lock)
+{
+    rt_base_t level;
+    RT_UNUSED(lock);
+    level = rt_hw_interrupt_disable();
+    rt_enter_critical();
+    return level;
+}
+
+/**
+ * @brief   This function will unlock the spinlock and then restore current cpu interrupt status, will unlock the thread scheduler.
+ *
+ * @param   lock is a pointer to the spinlock.
+ *
+ * @param   level is interrupt status returned by rt_spin_lock_irqsave().
+ */
+void rt_spin_unlock_irqrestore(struct rt_spinlock *lock, rt_base_t level)
+{
+    RT_UNUSED(lock);
+    rt_exit_critical();
+    rt_hw_interrupt_enable(level);
+}