armv7-a/r: check gic init wait done when using sgi

In SMP mode, qemu/goldfish platform, cpu0 use up_cpu_start()
to start others cpus.

But in previous patch(mathion ahead), arm_gic_initialize() will
wait others cpus start, so deadlocked!

Resolve:
Move the wait logic when use using sgi

Signed-off-by: ligd <liguiding1@xiaomi.com>

arch/arm/src/armv7-a/arm_gicv2.c

@@ -48,7 +48,7 @@
  ****************************************************************************/
 
 #if defined(CONFIG_SMP) && CONFIG_SMP_NCPUS > 1
-static volatile bool g_gic_init_done[CONFIG_SMP_NCPUS];
+static volatile cpu_set_t g_gic_init_done;
 #endif
 
 /****************************************************************************
@@ -68,20 +68,22 @@ static volatile bool g_gic_init_done[CONFIG_SMP_NCPUS];
 #if defined(CONFIG_SMP) && CONFIG_SMP_NCPUS > 1
 static void arm_gic_init_done(void)
 {
-  int cpu = up_cpu_index();
+  CPU_SET(up_cpu_index(), &g_gic_init_done);
-  int i;
+}
 
-  g_gic_init_done[cpu] = true;
+static void arm_gic_wait_done(cpu_set_t cpuset)
-  if (cpu == 0)
+{
+  cpu_set_t tmpset;
+
+  do
     {
-      for (i = 1; i < CONFIG_SMP_NCPUS; i++)
+      CPU_AND(&tmpset, &g_gic_init_done, &cpuset);
-        {
-          while (!g_gic_init_done[i]);
-        }
     }
+  while (!CPU_EQUAL(&tmpset, &cpuset));
 }
 #else
 #define arm_gic_init_done()
+#define arm_gic_wait_done(cpuset)
 #endif
 
 /****************************************************************************
@@ -709,6 +711,39 @@ int arm_gic_irq_trigger(int irq, bool edge)
   return -EINVAL;
 }
 
+void arm_cpu_sgi(int sgi, unsigned int cpuset)
+{
+  uint32_t regval;
+
+  arm_gic_wait_done(cpuset);
+
+#ifdef CONFIG_SMP
+  regval = GIC_ICDSGIR_INTID(sgi) | GIC_ICDSGIR_CPUTARGET(cpuset) |
+           GIC_ICDSGIR_TGTFILTER_LIST;
+#else
+  regval = GIC_ICDSGIR_INTID(sgi) | GIC_ICDSGIR_CPUTARGET(0) |
+           GIC_ICDSGIR_TGTFILTER_THIS;
+#endif
+
+#if defined(CONFIG_ARCH_TRUSTZONE_SECURE)
+  if (sgi >= GIC_IRQ_SGI0 && sgi <= GIC_IRQ_SGI7)
+#endif
+    {
+      /* Set NSATT be 1: forward the SGI specified in the SGIINTID field to a
+       * specified CPU interfaces only if the SGI is configured as Group 1 on
+       * that interface.
+       * For non-secure context, the configuration of GIC_ICDSGIR_NSATT_GRP1
+       * is not mandatory in the GICv2 specification, but for SMP scenarios,
+       * this value needs to be configured, otherwise issues may occur in the
+       * SMP scenario.
+       */
+
+      regval |= GIC_ICDSGIR_NSATT_GRP1;
+    }
+
+  putreg32(regval, GIC_ICDSGIR);
+}
+
 #ifdef CONFIG_SMP
 /****************************************************************************
  * Name: up_send_smp_call

arch/arm/src/armv7-a/gic.h

@@ -678,36 +678,7 @@ static inline unsigned int arm_gic_nlines(void)
  *
  ****************************************************************************/
 
-static inline void arm_cpu_sgi(int sgi, unsigned int cpuset)
+void arm_cpu_sgi(int sgi, unsigned int cpuset);
-{
-  uint32_t regval;
-
-#ifdef CONFIG_SMP
-  regval = GIC_ICDSGIR_INTID(sgi) | GIC_ICDSGIR_CPUTARGET(cpuset) |
-           GIC_ICDSGIR_TGTFILTER_LIST;
-#else
-  regval = GIC_ICDSGIR_INTID(sgi) | GIC_ICDSGIR_CPUTARGET(0) |
-           GIC_ICDSGIR_TGTFILTER_THIS;
-#endif
-
-#if defined(CONFIG_ARCH_TRUSTZONE_SECURE)
-  if (sgi >= GIC_IRQ_SGI0 && sgi <= GIC_IRQ_SGI7)
-#endif
-    {
-      /* Set NSATT be 1: forward the SGI specified in the SGIINTID field to a
-       * specified CPU interfaces only if the SGI is configured as Group 1 on
-       * that interface.
-       * For non-secure context, the configuration of GIC_ICDSGIR_NSATT_GRP1
-       * is not mandatory in the GICv2 specification, but for SMP scenarios,
-       * this value needs to be configured, otherwise issues may occur in the
-       * SMP scenario.
-       */
-
-      regval |= GIC_ICDSGIR_NSATT_GRP1;
-    }
-
-  putreg32(regval, GIC_ICDSGIR);
-}
 
 /****************************************************************************
  * Public Function Prototypes