diff --git a/arch/powerpc/mm/pkeys.c b/arch/powerpc/mm/pkeys.c
index e68e367dcdd7..afa6d0d63f32 100644
--- a/arch/powerpc/mm/pkeys.c
+++ b/arch/powerpc/mm/pkeys.c
@@ -67,3 +67,39 @@ void pkey_mm_init(struct mm_struct *mm)
 		return;
 	mm_pkey_allocation_map(mm) = initial_allocation_mask;
 }
+
+static inline u64 read_amr(void)
+{
+	return mfspr(SPRN_AMR);
+}
+
+static inline void write_amr(u64 value)
+{
+	mtspr(SPRN_AMR, value);
+}
+
+static inline u64 read_iamr(void)
+{
+	if (!likely(pkey_execute_disable_supported))
+		return 0x0UL;
+
+	return mfspr(SPRN_IAMR);
+}
+
+static inline void write_iamr(u64 value)
+{
+	if (!likely(pkey_execute_disable_supported))
+		return;
+
+	mtspr(SPRN_IAMR, value);
+}
+
+static inline u64 read_uamor(void)
+{
+	return mfspr(SPRN_UAMOR);
+}
+
+static inline void write_uamor(u64 value)
+{
+	mtspr(SPRN_UAMOR, value);
+}