diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
index 73cf0f54d57cc2459ce424f627f2a15d2ac496e6..361c8a8ef55f372a6c766889cbae007e680f7ef3 100644
--- a/arch/arm64/include/uapi/asm/hwcap.h
+++ b/arch/arm64/include/uapi/asm/hwcap.h
@@ -27,5 +27,6 @@
 #define HWCAP_SHA1		(1 << 5)
 #define HWCAP_SHA2		(1 << 6)
 #define HWCAP_CRC32		(1 << 7)
+#define HWCAP_ATOMICS		(1 << 8)
 
 #endif /* _UAPI__ASM_HWCAP_H */
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index e7a1e719f1272efe16c0a8b16defc1385759c77b..b2f9895ecf7b5af6784f8d5a5232d55abaf7da60 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -278,6 +278,19 @@ static void __init setup_processor(void)
 	if (block && !(block & 0x8))
 		elf_hwcap |= HWCAP_CRC32;
 
+	block = (features >> 20) & 0xf;
+	if (!(block & 0x8)) {
+		switch (block) {
+		default:
+		case 2:
+			elf_hwcap |= HWCAP_ATOMICS;
+		case 1:
+			/* RESERVED */
+		case 0:
+			break;
+		}
+	}
+
 #ifdef CONFIG_COMPAT
 	/*
 	 * ID_ISAR5_EL1 carries similar information as above, but pertaining to
@@ -457,6 +470,7 @@ static const char *hwcap_str[] = {
 	"sha1",
 	"sha2",
 	"crc32",
+	"atomics",
 	NULL
 };