[PATCH v2 07/27] ARM: arm64: activate atomic 64-bit accessors

[Andre Przywara <andre.przywara@arm.com>]

For some reason (probably because there was no user before) the 64-bit
atomic access wrappers were commented out so far.
As we will need them in the next patch, active (and fix) them now.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 xen/include/asm-arm/atomic.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/xen/include/asm-arm/atomic.h b/xen/include/asm-arm/atomic.h
index 22a5036..df9de6a 100644
--- a/xen/include/asm-arm/atomic.h
+++ b/xen/include/asm-arm/atomic.h
@@ -53,9 +53,9 @@ build_atomic_write(write_u16_atomic, "h", WORD, uint16_t, "r")
 build_atomic_write(write_u32_atomic, "",  WORD, uint32_t, "r")
 build_atomic_write(write_int_atomic, "",  WORD, int, "r")
 
-#if 0 /* defined (CONFIG_ARM_64) */
-build_atomic_read(read_u64_atomic, "x", uint64_t, "=r")
-build_atomic_write(write_u64_atomic, "x", uint64_t, "r")
+#if defined (CONFIG_ARM_64)
+build_atomic_read(read_u64_atomic, "", "", uint64_t, "=r")
+build_atomic_write(write_u64_atomic, "", "", uint64_t, "r")
 #endif
 
 build_add_sized(add_u8_sized, "b", BYTE, uint8_t, "ri")
-- 
2.9.0


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