kernel/arm: implement stubs for new functions

These were mostly introduced after the scheduler merge.

src/system/kernel/arch/arm/arch_int.cpp

@@ -96,6 +96,11 @@ arch_int_disable_io_interrupt(int irq)
 
 /* arch_int_*_interrupts() and friends are in arch_asm.S */
 
+void
+arch_int_assign_to_cpu(int32 irq, int32 cpu)
+{
+	// intentionally left blank; no SMP support (yet)
+}
 
 static void
 print_iframe(const char *event, struct iframe *frame)

src/system/kernel/arch/arm/arch_smp.cpp

@@ -15,6 +15,7 @@
 #include <boot/stage2.h>
 #include <arch/smp.h>
 #include <debug.h>
+#include <int.h>
 
 
 status_t
@@ -31,6 +32,16 @@ arch_smp_per_cpu_init(kernel_args *args, int32 cpu)
 }
 
 
+void
+arch_smp_send_multicast_ici(CPUSet& cpuSet)
+{
+#if KDEBUG
+	if (are_interrupts_enabled())
+		panic("arch_smp_send_multicast_ici: called with interrupts enabled");
+#endif
+}
+
+
 void
 arch_smp_send_ici(int32 target_cpu)
 {

src/system/kernel/arch/arm/arch_system_info.cpp

@@ -24,6 +24,30 @@ arch_get_system_info(system_info *info, size_t size)
 }
 
 
+void
+arch_fill_topology_node(cpu_topology_node_info* node, int32 cpu)
+{
+	switch (node->type) {
+		case B_TOPOLOGY_ROOT:
+			node->data.root.platform = B_CPU_PPC_64;
+			break;
+
+		case B_TOPOLOGY_PACKAGE:
+			//TODO node->data.package.vendor = sCPUVendor;
+			node->data.package.cache_line_size = CACHE_LINE_SIZE;
+			break;
+
+		case B_TOPOLOGY_CORE:
+			//TODO node->data.core.model = sPVR;
+			//TODO node->data.core.default_frequency = sCPUClockFrequency;
+			break;
+
+		default:
+			break;
+	}
+}
+
+
 status_t
 arch_system_info_init(struct kernel_args *args)
 {