Merge pull request #2081 from jesven/sync_smp_skeleton

Sync smp skeleton

4 files changed, 93 insertions, 99 deletions

diff --git a/bsp/qemu-vexpress-a9/cpu/cpu.c b/bsp/qemu-vexpress-a9/cpu/cpu.c
deleted file mode 100644
index 10099809a3..0000000000
--- a/bsp/qemu-vexpress-a9/cpu/cpu.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * File      : cpu.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Develop Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date           Author       Notes
- * 2011-09-15     Bernard      first version
- * 2018-11-22     Jesven       add rt_hw_cpu_id()
- */
-
-#include <rthw.h>
-#include <rtthread.h>
-#include <board.h>
-
-#ifdef RT_USING_SMP
-int rt_hw_cpu_id(void)
-{
-    int cpu_id;
-    __asm__ volatile (
-            "mrc p15, 0, %0, c0, c0, 5"
-            :"=r"(cpu_id)
-            );
-    cpu_id &= 0xf;
-    return cpu_id;
-};
-#endif
-
-/**
- * @addtogroup ARM CPU
- */
-/*@{*/
-
-/** shutdown CPU */
-void rt_hw_cpu_shutdown()
-{
-	rt_uint32_t level;
-	rt_kprintf("shutdown...\n");
-
-	level = rt_hw_interrupt_disable();
-	while (level)
-	{
-		RT_ASSERT(0);
-	}
-}
-
-/*@}*/
diff --git a/bsp/qemu-vexpress-a9/cpu/cpuport.c b/bsp/qemu-vexpress-a9/cpu/cpuport.c
new file mode 100644
index 0000000000..22ba8346da
--- /dev/null
+++ b/bsp/qemu-vexpress-a9/cpu/cpuport.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2011-09-15     Bernard      first version
+ * 2018-11-22     Jesven       add rt_hw_cpu_id()
+ */
+
+#include <rthw.h>
+#include <rtthread.h>
+#include <board.h>
+
+#ifdef RT_USING_SMP
+int rt_hw_cpu_id(void)
+{
+    int cpu_id;
+    __asm__ volatile (
+            "mrc p15, 0, %0, c0, c0, 5"
+            :"=r"(cpu_id)
+            );
+    cpu_id &= 0xf;
+    return cpu_id;
+};
+
+void rt_hw_spin_lock(rt_hw_spinlock_t *lock)
+{
+    unsigned long tmp;
+    unsigned long newval;
+    rt_hw_spinlock_t lockval;
+
+    __asm__ __volatile__(
+            "pld [%0]"
+            ::"r"(&lock->slock)
+            );
+
+    __asm__ __volatile__(
+            "1: ldrex   %0, [%3]\n"
+            "   add %1, %0, %4\n"
+            "   strex   %2, %1, [%3]\n"
+            "   teq %2, #0\n"
+            "   bne 1b"
+            : "=&r" (lockval), "=&r" (newval), "=&r" (tmp)
+            : "r" (&lock->slock), "I" (1 << 16)
+            : "cc");
+
+    while (lockval.tickets.next != lockval.tickets.owner) {
+        __asm__ __volatile__("wfe":::"memory");
+        lockval.tickets.owner = *(volatile unsigned short *)(&lock->tickets.owner);
+    }
+
+    __asm__ volatile ("dmb":::"memory");
+}
+
+void rt_hw_spin_unlock(rt_hw_spinlock_t *lock)
+{
+    __asm__ volatile ("dmb":::"memory");
+    lock->tickets.owner++;
+    __asm__ volatile ("dsb ishst\nsev":::"memory");
+}
+
+#endif /*RT_USING_SMP*/
+
+void idle_wfi(void)
+{
+    asm volatile ("wfi");
+}
+
+/**
+ * @addtogroup ARM CPU
+ */
+/*@{*/
+
+/** shutdown CPU */
+void rt_hw_cpu_shutdown()
+{
+    rt_uint32_t level;
+    rt_kprintf("shutdown...\n");
+
+    level = rt_hw_interrupt_disable();
+    while (level)
+    {
+        RT_ASSERT(0);
+    }
+}
+
+/*@}*/
diff --git a/bsp/qemu-vexpress-a9/drivers/board.c b/bsp/qemu-vexpress-a9/drivers/board.c
index 26aad5bda1..26445d33f1 100644
--- a/bsp/qemu-vexpress-a9/drivers/board.c
+++ b/bsp/qemu-vexpress-a9/drivers/board.c
@@ -19,10 +19,8 @@
 
 #define SYS_CTRL                        __REG32(REALVIEW_SCTL_BASE)
 
-void idle_wfi(void)
-{
-    asm volatile ("wfi");
-}
+extern void idle_wfi(void);
+extern void rt_hw_ipi_handler_install(int ipi_vector, rt_isr_handler_t ipi_isr_handler);
 
 /**
  * This function will initialize beaglebone board
@@ -40,46 +38,8 @@ void rt_hw_board_init(void)
     rt_thread_idle_sethook(idle_wfi);
 
 #ifdef RT_USING_SMP
-    /* install IPI interrupt */
-    rt_hw_interrupt_install(RT_SCHEDULE_IPI_IRQ, rt_scheduler_ipi_handler, RT_NULL, "ipi");
-    rt_hw_interrupt_umask(RT_SCHEDULE_IPI_IRQ);
+    /* install IPI handle */
+    rt_hw_ipi_handler_install(RT_SCHEDULE_IPI, rt_scheduler_ipi_handler);
 #endif
 }
 
-#ifdef RT_USING_SMP
-void rt_hw_spin_lock(rt_hw_spinlock_t *lock)
-{
-    unsigned long tmp;
-    unsigned long newval;
-    rt_hw_spinlock_t lockval;
-
-    __asm__ __volatile__(
-            "pld [%0]"
-            ::"r"(&lock->slock)
-            );
-
-    __asm__ __volatile__(
-            "1: ldrex   %0, [%3]\n"
-            "   add %1, %0, %4\n"
-            "   strex   %2, %1, [%3]\n"
-            "   teq %2, #0\n"
-            "   bne 1b"
-            : "=&r" (lockval), "=&r" (newval), "=&r" (tmp)
-            : "r" (&lock->slock), "I" (1 << 16)
-            : "cc");
-
-    while (lockval.tickets.next != lockval.tickets.owner) {
-        __asm__ __volatile__("wfe":::"memory");
-        lockval.tickets.owner = *(volatile unsigned short *)(&lock->tickets.owner);
-    }
-
-    __asm__ volatile ("dmb":::"memory");
-}
-
-void rt_hw_spin_unlock(rt_hw_spinlock_t *lock)
-{
-    __asm__ volatile ("dmb":::"memory");
-    lock->tickets.owner++;
-    __asm__ volatile ("dsb ishst\nsev":::"memory");
-}
-#endif /*RT_USING_SMP*/
diff --git a/bsp/qemu-vexpress-a9/drivers/secondary_cpu.c b/bsp/qemu-vexpress-a9/drivers/secondary_cpu.c
index b8b5436929..29bb9ec895 100644
--- a/bsp/qemu-vexpress-a9/drivers/secondary_cpu.c
+++ b/bsp/qemu-vexpress-a9/drivers/secondary_cpu.c
@@ -46,10 +46,6 @@ void secondary_cpu_c_start(void)
     rt_hw_interrupt_install(IRQ_PBA8_TIMER0_1, rt_hw_timer2_isr, RT_NULL, "tick");
     rt_hw_interrupt_umask(IRQ_PBA8_TIMER0_1);
 
-    /* install IPI interrupt */
-    rt_hw_interrupt_install(RT_SCHEDULE_IPI_IRQ, rt_scheduler_ipi_handler, RT_NULL, "ipi");
-    rt_hw_interrupt_umask(RT_SCHEDULE_IPI_IRQ);
-
     rt_system_scheduler_start();
 }