+static struct lppaca *extra_lppacas;
+static long __initdata lppaca_size;
+
+static void allocate_lppacas(int nr_cpus, unsigned long limit)
+{
+ if (nr_cpus <= NR_LPPACAS)
+ return;
+
+ lppaca_size = PAGE_ALIGN(sizeof(struct lppaca) *
+ (nr_cpus - NR_LPPACAS));
+ extra_lppacas = __va(memblock_alloc_base(lppaca_size,
+ PAGE_SIZE, limit));
+}
+
+static struct lppaca *new_lppaca(int cpu)
+{
+ struct lppaca *lp;
+
+ if (cpu < NR_LPPACAS)
+ return &lppaca[cpu];
+
+ lp = extra_lppacas + (cpu - NR_LPPACAS);
+ *lp = lppaca[0];
+
+ return lp;
+}
+
+static void free_lppacas(void)
+{
+ long new_size = 0, nr;
+
+ if (!lppaca_size)
+ return;
+ nr = num_possible_cpus() - NR_LPPACAS;
+ if (nr > 0)
+ new_size = PAGE_ALIGN(nr * sizeof(struct lppaca));
+ if (new_size >= lppaca_size)
+ return;
+
+ memblock_free(__pa(extra_lppacas) + new_size, lppaca_size - new_size);
+ lppaca_size = new_size;
+}
+
+#else
+
+static inline void allocate_lppacas(int nr_cpus, unsigned long limit) { }
+static inline void free_lppacas(void) { }
+