1 files changed, 13 insertions, 0 deletions

diff --git a/arch/arm64/include/asm/smp_plat.h b/arch/arm64/include/asm/smp_plat.h
index ed43a0d2b1b2..59e282311b58 100644
--- a/arch/arm64/include/asm/smp_plat.h
+++ b/arch/arm64/include/asm/smp_plat.h
@@ -21,6 +21,19 @@
 
 #include <asm/types.h>
 
+struct mpidr_hash {
+        u64     mask;
+        u32     shift_aff[4];
+        u32     bits;
+};
+
+extern struct mpidr_hash mpidr_hash;
+
+static inline u32 mpidr_hash_size(void)
+{
+        return 1 << mpidr_hash.bits;
+}
+
 /*
  * Logical CPU mapping.
  */