diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index a63fe6f3a0ff81d0c29ae959a17c282a72213483..254687258f42b1673d4becc5ff213a32db18bb24 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -255,8 +255,10 @@ static inline bool pfn_valid(unsigned long pfn)
  */
 #ifdef CONFIG_PPC_BOOK3E_64
 #define is_kernel_addr(x)	((x) >= 0x8000000000000000ul)
-#else
+#elif defined(CONFIG_PPC_BOOK3S_64)
 #define is_kernel_addr(x)	((x) >= PAGE_OFFSET)
+#else
+#define is_kernel_addr(x)	((x) >= TASK_SIZE)
 #endif
 
 #ifndef CONFIG_PPC_BOOK3S_64
diff --git a/arch/powerpc/mm/ptdump/ptdump.c b/arch/powerpc/mm/ptdump/ptdump.c
index de6e05ef871c1b732b3664ced8473ee01359c9b1..9d942136c7beed962107bdeb3e256da8f6a86700 100644
--- a/arch/powerpc/mm/ptdump/ptdump.c
+++ b/arch/powerpc/mm/ptdump/ptdump.c
@@ -348,7 +348,11 @@ static void populate_markers(void)
 {
 	int i = 0;
 
+#ifdef CONFIG_PPC64
 	address_markers[i++].start_address = PAGE_OFFSET;
+#else
+	address_markers[i++].start_address = TASK_SIZE;
+#endif
 	address_markers[i++].start_address = VMALLOC_START;
 	address_markers[i++].start_address = VMALLOC_END;
 #ifdef CONFIG_PPC64
@@ -385,7 +389,7 @@ static int ptdump_show(struct seq_file *m, void *v)
 	struct pg_state st = {
 		.seq = m,
 		.marker = address_markers,
-		.start_address = PAGE_OFFSET,
+		.start_address = IS_ENABLED(CONFIG_PPC64) ? PAGE_OFFSET : TASK_SIZE,
 	};
 
 #ifdef CONFIG_PPC64
@@ -429,7 +433,7 @@ void ptdump_check_wx(void)
 		.seq = NULL,
 		.marker = address_markers,
 		.check_wx = true,
-		.start_address = PAGE_OFFSET,
+		.start_address = IS_ENABLED(CONFIG_PPC64) ? PAGE_OFFSET : TASK_SIZE,
 	};
 
 #ifdef CONFIG_PPC64