Index: kernel/arch/mips32/include/arch/asm.h
===================================================================
--- kernel/arch/mips32/include/arch/asm.h	(revision 6188fee70f91508871094638e99dcaf9d73efdc0)
+++ kernel/arch/mips32/include/arch/asm.h	(revision c680333f74d2b09e6fbd8909bcc815a04d04ea8e)
@@ -89,4 +89,16 @@
 extern bool interrupts_disabled(void);
 
+/** Enables interrupts and blocks until an interrupt arrives,
+ * atomically if possible on target architecture.
+ * Disables interrupts again before returning to caller.
+ */
+_NO_TRACE static inline void cpu_interruptible_sleep(void)
+{
+	// FIXME: do this atomically
+	interrupts_enable();
+	cpu_sleep();
+	interrupts_disable();
+}
+
 #endif