summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/include/asm/spinlock.h5
-rw-r--r--arch/s390/lib/spinlock.c9
2 files changed, 5 insertions, 9 deletions
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index 09e783d83d5d..709cb6c01db9 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -13,6 +13,7 @@
#include <asm/atomic_ops.h>
#include <asm/barrier.h>
#include <asm/processor.h>
+#include <asm/alternative.h>
#define SPINLOCK_LOCKVAL (S390_lowcore.spinlock_lockval)
@@ -86,9 +87,7 @@ static inline void arch_spin_unlock(arch_spinlock_t *lp)
{
typecheck(int, lp->lock);
asm volatile(
-#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
- " .long 0xb2fa0070\n" /* NIAI 7 */
-#endif
+ ALTERNATIVE("", ".long 0xb2fa0070", 49) /* NIAI 7 */
" sth %1,%0\n"
: "=Q" (((unsigned short *) &lp->lock)[1])
: "d" (0) : "cc", "memory");
diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinlock.c
index 43b0d46c3786..920503174252 100644
--- a/arch/s390/lib/spinlock.c
+++ b/arch/s390/lib/spinlock.c
@@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/smp.h>
#include <linux/percpu.h>
+#include <asm/alternative.h>
#include <asm/io.h>
int spin_retry = -1;
@@ -73,9 +74,7 @@ static inline int arch_load_niai4(int *lock)
int owner;
asm volatile(
-#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
- " .long 0xb2fa0040\n" /* NIAI 4 */
-#endif
+ ALTERNATIVE("", ".long 0xb2fa0040", 49) /* NIAI 4 */
" l %0,%1\n"
: "=d" (owner) : "Q" (*lock) : "memory");
return owner;
@@ -86,9 +85,7 @@ static inline int arch_cmpxchg_niai8(int *lock, int old, int new)
int expected = old;
asm volatile(
-#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
- " .long 0xb2fa0080\n" /* NIAI 8 */
-#endif
+ ALTERNATIVE("", ".long 0xb2fa0080", 49) /* NIAI 8 */
" cs %0,%3,%1\n"
: "=d" (old), "=Q" (*lock)
: "0" (old), "d" (new), "Q" (*lock)