@@ -45,6 +45,7 @@ struct smp_ops_t {
#endif
void (*probe)(void);
int (*kick_cpu)(int nr);
+ int (*prepare_cpu)(int nr);
void (*setup_cpu)(int nr);
void (*bringup_done)(void);
void (*take_timebase)(void);
@@ -519,6 +519,16 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
cpu_idle_thread_init(cpu, tidle);
+ /*
+ * The platform might need to allocate resources prior to bringing
+ * up the CPU
+ */
+ if (smp_ops->prepare_cpu) {
+ rc = smp_ops->prepare_cpu(cpu);
+ if (rc)
+ return rc;
+ }
+
/* Make sure callin-map entry is 0 (can be leftover a CPU
* hotplug
*/