diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c
index 5c8d066283e6..715508cc7e09 100644
--- a/arch/powerpc/platforms/ps3/mm.c
+++ b/arch/powerpc/platforms/ps3/mm.c
@@ -80,7 +80,7 @@ enum {
 
 struct mem_region {
 	u64 base;
-	unsigned long size;
+	u64 size;
 	unsigned long offset;
 };
 
@@ -103,7 +103,7 @@ struct mem_region {
  */
 
 struct map {
-	unsigned long total;
+	u64 total;
 	u64 vas_id;
 	u64 htab_size;
 	struct mem_region rm;
@@ -114,13 +114,13 @@ struct map {
 static void __maybe_unused _debug_dump_map(const struct map *m,
 	const char *func, int line)
 {
-	DBG("%s:%d: map.total     = %lxh\n", func, line, m->total);
-	DBG("%s:%d: map.rm.size   = %lxh\n", func, line, m->rm.size);
+	DBG("%s:%d: map.total     = %llxh\n", func, line, m->total);
+	DBG("%s:%d: map.rm.size   = %llxh\n", func, line, m->rm.size);
 	DBG("%s:%d: map.vas_id    = %llu\n", func, line, m->vas_id);
 	DBG("%s:%d: map.htab_size = %llxh\n", func, line, m->htab_size);
 	DBG("%s:%d: map.r1.base   = %llxh\n", func, line, m->r1.base);
 	DBG("%s:%d: map.r1.offset = %lxh\n", func, line, m->r1.offset);
-	DBG("%s:%d: map.r1.size   = %lxh\n", func, line, m->r1.size);
+	DBG("%s:%d: map.r1.size   = %llxh\n", func, line, m->r1.size);
 }
 
 static struct map map;
@@ -240,10 +240,9 @@ static int ps3_mm_region_create(struct mem_region *r, unsigned long size)
 	r->size = _ALIGN_DOWN(size, 1 << PAGE_SHIFT_16M);
 
 	DBG("%s:%d requested  %lxh\n", __func__, __LINE__, size);
-	DBG("%s:%d actual     %lxh\n", __func__, __LINE__, r->size);
-	DBG("%s:%d difference %lxh (%luMB)\n", __func__, __LINE__,
-		(unsigned long)(size - r->size),
-		(size - r->size) / 1024 / 1024);
+	DBG("%s:%d actual     %llxh\n", __func__, __LINE__, r->size);
+	DBG("%s:%d difference %llxh (%lluMB)\n", __func__, __LINE__,
+		size - r->size, (size - r->size) / 1024 / 1024);
 
 	if (r->size == 0) {
 		DBG("%s:%d: size == 0\n", __func__, __LINE__);