Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 150 insertions, 0 deletions

diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
new file mode 100644
index 0000000000..7138d189cc
--- /dev/null
+++ b/arch/s390/include/asm/atomic.h
@@ -0,0 +1,150 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright IBM Corp. 1999, 2016
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ *	      Denis Joseph Barrow,
+ *	      Arnd Bergmann,
+ */
+
+#ifndef __ARCH_S390_ATOMIC__
+#define __ARCH_S390_ATOMIC__
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <asm/atomic_ops.h>
+#include <asm/barrier.h>
+#include <asm/cmpxchg.h>
+
+static inline int arch_atomic_read(const atomic_t *v)
+{
+	return __atomic_read(v);
+}
+#define arch_atomic_read arch_atomic_read
+
+static inline void arch_atomic_set(atomic_t *v, int i)
+{
+	__atomic_set(v, i);
+}
+#define arch_atomic_set arch_atomic_set
+
+static inline int arch_atomic_add_return(int i, atomic_t *v)
+{
+	return __atomic_add_barrier(i, &v->counter) + i;
+}
+#define arch_atomic_add_return arch_atomic_add_return
+
+static inline int arch_atomic_fetch_add(int i, atomic_t *v)
+{
+	return __atomic_add_barrier(i, &v->counter);
+}
+#define arch_atomic_fetch_add arch_atomic_fetch_add
+
+static inline void arch_atomic_add(int i, atomic_t *v)
+{
+	__atomic_add(i, &v->counter);
+}
+#define arch_atomic_add arch_atomic_add
+
+#define arch_atomic_sub(_i, _v)		arch_atomic_add(-(int)(_i), _v)
+#define arch_atomic_sub_return(_i, _v)	arch_atomic_add_return(-(int)(_i), _v)
+#define arch_atomic_fetch_sub(_i, _v)	arch_atomic_fetch_add(-(int)(_i), _v)
+
+#define ATOMIC_OPS(op)							\
+static inline void arch_atomic_##op(int i, atomic_t *v)			\
+{									\
+	__atomic_##op(i, &v->counter);					\
+}									\
+static inline int arch_atomic_fetch_##op(int i, atomic_t *v)		\
+{									\
+	return __atomic_##op##_barrier(i, &v->counter);			\
+}
+
+ATOMIC_OPS(and)
+ATOMIC_OPS(or)
+ATOMIC_OPS(xor)
+
+#undef ATOMIC_OPS
+
+#define arch_atomic_and			arch_atomic_and
+#define arch_atomic_or			arch_atomic_or
+#define arch_atomic_xor			arch_atomic_xor
+#define arch_atomic_fetch_and		arch_atomic_fetch_and
+#define arch_atomic_fetch_or		arch_atomic_fetch_or
+#define arch_atomic_fetch_xor		arch_atomic_fetch_xor
+
+#define arch_atomic_xchg(v, new)	(arch_xchg(&((v)->counter), new))
+
+static inline int arch_atomic_cmpxchg(atomic_t *v, int old, int new)
+{
+	return __atomic_cmpxchg(&v->counter, old, new);
+}
+#define arch_atomic_cmpxchg arch_atomic_cmpxchg
+
+#define ATOMIC64_INIT(i)  { (i) }
+
+static inline s64 arch_atomic64_read(const atomic64_t *v)
+{
+	return __atomic64_read(v);
+}
+#define arch_atomic64_read arch_atomic64_read
+
+static inline void arch_atomic64_set(atomic64_t *v, s64 i)
+{
+	__atomic64_set(v, i);
+}
+#define arch_atomic64_set arch_atomic64_set
+
+static inline s64 arch_atomic64_add_return(s64 i, atomic64_t *v)
+{
+	return __atomic64_add_barrier(i, (long *)&v->counter) + i;
+}
+#define arch_atomic64_add_return arch_atomic64_add_return
+
+static inline s64 arch_atomic64_fetch_add(s64 i, atomic64_t *v)
+{
+	return __atomic64_add_barrier(i, (long *)&v->counter);
+}
+#define arch_atomic64_fetch_add arch_atomic64_fetch_add
+
+static inline void arch_atomic64_add(s64 i, atomic64_t *v)
+{
+	__atomic64_add(i, (long *)&v->counter);
+}
+#define arch_atomic64_add arch_atomic64_add
+
+#define arch_atomic64_xchg(v, new)	(arch_xchg(&((v)->counter), new))
+
+static inline s64 arch_atomic64_cmpxchg(atomic64_t *v, s64 old, s64 new)
+{
+	return __atomic64_cmpxchg((long *)&v->counter, old, new);
+}
+#define arch_atomic64_cmpxchg arch_atomic64_cmpxchg
+
+#define ATOMIC64_OPS(op)						\
+static inline void arch_atomic64_##op(s64 i, atomic64_t *v)		\
+{									\
+	__atomic64_##op(i, (long *)&v->counter);			\
+}									\
+static inline long arch_atomic64_fetch_##op(s64 i, atomic64_t *v)	\
+{									\
+	return __atomic64_##op##_barrier(i, (long *)&v->counter);	\
+}
+
+ATOMIC64_OPS(and)
+ATOMIC64_OPS(or)
+ATOMIC64_OPS(xor)
+
+#undef ATOMIC64_OPS
+
+#define arch_atomic64_and		arch_atomic64_and
+#define arch_atomic64_or		arch_atomic64_or
+#define arch_atomic64_xor		arch_atomic64_xor
+#define arch_atomic64_fetch_and		arch_atomic64_fetch_and
+#define arch_atomic64_fetch_or		arch_atomic64_fetch_or
+#define arch_atomic64_fetch_xor		arch_atomic64_fetch_xor
+
+#define arch_atomic64_sub_return(_i, _v) arch_atomic64_add_return(-(s64)(_i), _v)
+#define arch_atomic64_fetch_sub(_i, _v)  arch_atomic64_fetch_add(-(s64)(_i), _v)
+#define arch_atomic64_sub(_i, _v)	 arch_atomic64_add(-(s64)(_i), _v)
+
+#endif /* __ARCH_S390_ATOMIC__  */