3 files changed, 11 insertions, 14 deletions

diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index b8480127793d..8c890c6557ed 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -28,7 +28,7 @@
 static void *__init alloc_paca_data(unsigned long size, unsigned long align,
 				unsigned long limit, int cpu)
 {
-	unsigned long pa;
+	void *ptr;
 	int nid;
 
 	/*
@@ -43,17 +43,15 @@ static void *__init alloc_paca_data(unsigned long size, unsigned long align,
 		nid = early_cpu_to_node(cpu);
 	}
 
-	pa = memblock_alloc_base_nid(size, align, limit, nid, MEMBLOCK_NONE);
-	if (!pa) {
-		pa = memblock_alloc_base(size, align, limit);
-		if (!pa)
-			panic("cannot allocate paca data");
-	}
+	ptr = memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,
+				     limit, nid);
+	if (!ptr)
+		panic("cannot allocate paca data");
 
 	if (cpu == boot_cpuid)
 		memblock_set_bottom_up(false);
 
-	return __va(pa);
+	return ptr;
 }
 
 #ifdef CONFIG_PPC_PSERIES
@@ -119,7 +117,6 @@ static struct slb_shadow * __init new_slb_shadow(int cpu, unsigned long limit)
 	}
 
 	s = alloc_paca_data(sizeof(*s), L1_CACHE_BYTES, limit, cpu);
-	memset(s, 0, sizeof(*s));
 
 	s->persistent = cpu_to_be32(SLB_NUM_BOLTED);
 	s->buffer_length = cpu_to_be32(sizeof(*s));
@@ -223,7 +220,6 @@ void __init allocate_paca(int cpu)
 	paca = alloc_paca_data(sizeof(struct paca_struct), L1_CACHE_BYTES,
 				limit, cpu);
 	paca_ptrs[cpu] = paca;
-	memset(paca, 0, sizeof(struct paca_struct));
 
 	initialise_paca(paca, cpu);
 #ifdef CONFIG_PPC_PSERIES
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index e7534f306c8e..f17868e19e2c 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -459,8 +459,8 @@ void __init smp_setup_cpu_maps(void)
 
 	DBG("smp_setup_cpu_maps()\n");
 
-	cpu_to_phys_id = __va(memblock_phys_alloc(nr_cpu_ids * sizeof(u32), __alignof__(u32)));
-	memset(cpu_to_phys_id, 0, nr_cpu_ids * sizeof(u32));
+	cpu_to_phys_id = memblock_alloc(nr_cpu_ids * sizeof(u32),
+					__alignof__(u32));
 
 	for_each_node_by_type(dn, "cpu") {
 		const __be32 *intserv;
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index daa361fc6a24..ff0aac42bb33 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -902,8 +902,9 @@ static void __ref init_fallback_flush(void)
 	 * hardware prefetch runoff. We don't have a recipe for load patterns to
 	 * reliably avoid the prefetcher.
 	 */
-	l1d_flush_fallback_area = __va(memblock_alloc_base(l1d_size * 2, l1d_size, limit));
-	memset(l1d_flush_fallback_area, 0, l1d_size * 2);
+	l1d_flush_fallback_area = memblock_alloc_try_nid(l1d_size * 2,
+						l1d_size, MEMBLOCK_LOW_LIMIT,
+						limit, NUMA_NO_NODE);
 
 	for_each_possible_cpu(cpu) {
 		struct paca_struct *paca = paca_ptrs[cpu];