Adding upstream version 4.19.249.upstream/4.19.249upstream

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

1 files changed, 269 insertions, 0 deletions

diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h
new file mode 100644
index 000000000..87d14476e
--- /dev/null
+++ b/include/asm-generic/atomic-long.h
@@ -0,0 +1,269 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_GENERIC_ATOMIC_LONG_H
+#define _ASM_GENERIC_ATOMIC_LONG_H
+/*
+ * Copyright (C) 2005 Silicon Graphics, Inc.
+ *	Christoph Lameter
+ *
+ * Allows to provide arch independent atomic definitions without the need to
+ * edit all arch specific atomic.h files.
+ */
+
+#include <asm/types.h>
+
+/*
+ * Suppport for atomic_long_t
+ *
+ * Casts for parameters are avoided for existing atomic functions in order to
+ * avoid issues with cast-as-lval under gcc 4.x and other limitations that the
+ * macros of a platform may have.
+ */
+
+#if BITS_PER_LONG == 64
+
+typedef atomic64_t atomic_long_t;
+
+#define ATOMIC_LONG_INIT(i)	ATOMIC64_INIT(i)
+#define ATOMIC_LONG_PFX(x)	atomic64 ## x
+#define ATOMIC_LONG_TYPE	s64
+
+#else
+
+typedef atomic_t atomic_long_t;
+
+#define ATOMIC_LONG_INIT(i)	ATOMIC_INIT(i)
+#define ATOMIC_LONG_PFX(x)	atomic ## x
+#define ATOMIC_LONG_TYPE	int
+
+#endif
+
+#define ATOMIC_LONG_READ_OP(mo)						\
+static inline long atomic_long_read##mo(const atomic_long_t *l)		\
+{									\
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;		\
+									\
+	return (long)ATOMIC_LONG_PFX(_read##mo)(v);			\
+}
+ATOMIC_LONG_READ_OP()
+ATOMIC_LONG_READ_OP(_acquire)
+
+#undef ATOMIC_LONG_READ_OP
+
+#define ATOMIC_LONG_SET_OP(mo)						\
+static inline void atomic_long_set##mo(atomic_long_t *l, long i)	\
+{									\
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;		\
+									\
+	ATOMIC_LONG_PFX(_set##mo)(v, i);				\
+}
+ATOMIC_LONG_SET_OP()
+ATOMIC_LONG_SET_OP(_release)
+
+#undef ATOMIC_LONG_SET_OP
+
+#define ATOMIC_LONG_ADD_SUB_OP(op, mo)					\
+static inline long							\
+atomic_long_##op##_return##mo(long i, atomic_long_t *l)			\
+{									\
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;		\
+									\
+	return (long)ATOMIC_LONG_PFX(_##op##_return##mo)(i, v);		\
+}
+ATOMIC_LONG_ADD_SUB_OP(add,)
+ATOMIC_LONG_ADD_SUB_OP(add, _relaxed)
+ATOMIC_LONG_ADD_SUB_OP(add, _acquire)
+ATOMIC_LONG_ADD_SUB_OP(add, _release)
+ATOMIC_LONG_ADD_SUB_OP(sub,)
+ATOMIC_LONG_ADD_SUB_OP(sub, _relaxed)
+ATOMIC_LONG_ADD_SUB_OP(sub, _acquire)
+ATOMIC_LONG_ADD_SUB_OP(sub, _release)
+
+#undef ATOMIC_LONG_ADD_SUB_OP
+
+#define atomic_long_cmpxchg_relaxed(l, old, new) \
+	(ATOMIC_LONG_PFX(_cmpxchg_relaxed)((ATOMIC_LONG_PFX(_t) *)(l), \
+					   (old), (new)))
+#define atomic_long_cmpxchg_acquire(l, old, new) \
+	(ATOMIC_LONG_PFX(_cmpxchg_acquire)((ATOMIC_LONG_PFX(_t) *)(l), \
+					   (old), (new)))
+#define atomic_long_cmpxchg_release(l, old, new) \
+	(ATOMIC_LONG_PFX(_cmpxchg_release)((ATOMIC_LONG_PFX(_t) *)(l), \
+					   (old), (new)))
+#define atomic_long_cmpxchg(l, old, new) \
+	(ATOMIC_LONG_PFX(_cmpxchg)((ATOMIC_LONG_PFX(_t) *)(l), (old), (new)))
+
+
+#define atomic_long_try_cmpxchg_relaxed(l, old, new) \
+	(ATOMIC_LONG_PFX(_try_cmpxchg_relaxed)((ATOMIC_LONG_PFX(_t) *)(l), \
+					   (ATOMIC_LONG_TYPE *)(old), (ATOMIC_LONG_TYPE)(new)))
+#define atomic_long_try_cmpxchg_acquire(l, old, new) \
+	(ATOMIC_LONG_PFX(_try_cmpxchg_acquire)((ATOMIC_LONG_PFX(_t) *)(l), \
+					   (ATOMIC_LONG_TYPE *)(old), (ATOMIC_LONG_TYPE)(new)))
+#define atomic_long_try_cmpxchg_release(l, old, new) \
+	(ATOMIC_LONG_PFX(_try_cmpxchg_release)((ATOMIC_LONG_PFX(_t) *)(l), \
+					   (ATOMIC_LONG_TYPE *)(old), (ATOMIC_LONG_TYPE)(new)))
+#define atomic_long_try_cmpxchg(l, old, new) \
+	(ATOMIC_LONG_PFX(_try_cmpxchg)((ATOMIC_LONG_PFX(_t) *)(l), \
+				       (ATOMIC_LONG_TYPE *)(old), (ATOMIC_LONG_TYPE)(new)))
+
+
+#define atomic_long_xchg_relaxed(v, new) \
+	(ATOMIC_LONG_PFX(_xchg_relaxed)((ATOMIC_LONG_PFX(_t) *)(v), (new)))
+#define atomic_long_xchg_acquire(v, new) \
+	(ATOMIC_LONG_PFX(_xchg_acquire)((ATOMIC_LONG_PFX(_t) *)(v), (new)))
+#define atomic_long_xchg_release(v, new) \
+	(ATOMIC_LONG_PFX(_xchg_release)((ATOMIC_LONG_PFX(_t) *)(v), (new)))
+#define atomic_long_xchg(v, new) \
+	(ATOMIC_LONG_PFX(_xchg)((ATOMIC_LONG_PFX(_t) *)(v), (new)))
+
+static __always_inline void atomic_long_inc(atomic_long_t *l)
+{
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
+
+	ATOMIC_LONG_PFX(_inc)(v);
+}
+
+static __always_inline void atomic_long_dec(atomic_long_t *l)
+{
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
+
+	ATOMIC_LONG_PFX(_dec)(v);
+}
+
+#define ATOMIC_LONG_FETCH_OP(op, mo)					\
+static inline long							\
+atomic_long_fetch_##op##mo(long i, atomic_long_t *l)			\
+{									\
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;		\
+									\
+	return (long)ATOMIC_LONG_PFX(_fetch_##op##mo)(i, v);		\
+}
+
+ATOMIC_LONG_FETCH_OP(add, )
+ATOMIC_LONG_FETCH_OP(add, _relaxed)
+ATOMIC_LONG_FETCH_OP(add, _acquire)
+ATOMIC_LONG_FETCH_OP(add, _release)
+ATOMIC_LONG_FETCH_OP(sub, )
+ATOMIC_LONG_FETCH_OP(sub, _relaxed)
+ATOMIC_LONG_FETCH_OP(sub, _acquire)
+ATOMIC_LONG_FETCH_OP(sub, _release)
+ATOMIC_LONG_FETCH_OP(and, )
+ATOMIC_LONG_FETCH_OP(and, _relaxed)
+ATOMIC_LONG_FETCH_OP(and, _acquire)
+ATOMIC_LONG_FETCH_OP(and, _release)
+ATOMIC_LONG_FETCH_OP(andnot, )
+ATOMIC_LONG_FETCH_OP(andnot, _relaxed)
+ATOMIC_LONG_FETCH_OP(andnot, _acquire)
+ATOMIC_LONG_FETCH_OP(andnot, _release)
+ATOMIC_LONG_FETCH_OP(or, )
+ATOMIC_LONG_FETCH_OP(or, _relaxed)
+ATOMIC_LONG_FETCH_OP(or, _acquire)
+ATOMIC_LONG_FETCH_OP(or, _release)
+ATOMIC_LONG_FETCH_OP(xor, )
+ATOMIC_LONG_FETCH_OP(xor, _relaxed)
+ATOMIC_LONG_FETCH_OP(xor, _acquire)
+ATOMIC_LONG_FETCH_OP(xor, _release)
+
+#undef ATOMIC_LONG_FETCH_OP
+
+#define ATOMIC_LONG_FETCH_INC_DEC_OP(op, mo)					\
+static inline long							\
+atomic_long_fetch_##op##mo(atomic_long_t *l)				\
+{									\
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;		\
+									\
+	return (long)ATOMIC_LONG_PFX(_fetch_##op##mo)(v);		\
+}
+
+ATOMIC_LONG_FETCH_INC_DEC_OP(inc,)
+ATOMIC_LONG_FETCH_INC_DEC_OP(inc, _relaxed)
+ATOMIC_LONG_FETCH_INC_DEC_OP(inc, _acquire)
+ATOMIC_LONG_FETCH_INC_DEC_OP(inc, _release)
+ATOMIC_LONG_FETCH_INC_DEC_OP(dec,)
+ATOMIC_LONG_FETCH_INC_DEC_OP(dec, _relaxed)
+ATOMIC_LONG_FETCH_INC_DEC_OP(dec, _acquire)
+ATOMIC_LONG_FETCH_INC_DEC_OP(dec, _release)
+
+#undef ATOMIC_LONG_FETCH_INC_DEC_OP
+
+#define ATOMIC_LONG_OP(op)						\
+static __always_inline void						\
+atomic_long_##op(long i, atomic_long_t *l)				\
+{									\
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;		\
+									\
+	ATOMIC_LONG_PFX(_##op)(i, v);					\
+}
+
+ATOMIC_LONG_OP(add)
+ATOMIC_LONG_OP(sub)
+ATOMIC_LONG_OP(and)
+ATOMIC_LONG_OP(andnot)
+ATOMIC_LONG_OP(or)
+ATOMIC_LONG_OP(xor)
+
+#undef ATOMIC_LONG_OP
+
+static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
+{
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
+
+	return ATOMIC_LONG_PFX(_sub_and_test)(i, v);
+}
+
+static inline int atomic_long_dec_and_test(atomic_long_t *l)
+{
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
+
+	return ATOMIC_LONG_PFX(_dec_and_test)(v);
+}
+
+static inline int atomic_long_inc_and_test(atomic_long_t *l)
+{
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
+
+	return ATOMIC_LONG_PFX(_inc_and_test)(v);
+}
+
+static inline int atomic_long_add_negative(long i, atomic_long_t *l)
+{
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
+
+	return ATOMIC_LONG_PFX(_add_negative)(i, v);
+}
+
+#define ATOMIC_LONG_INC_DEC_OP(op, mo)					\
+static inline long							\
+atomic_long_##op##_return##mo(atomic_long_t *l)				\
+{									\
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;		\
+									\
+	return (long)ATOMIC_LONG_PFX(_##op##_return##mo)(v);		\
+}
+ATOMIC_LONG_INC_DEC_OP(inc,)
+ATOMIC_LONG_INC_DEC_OP(inc, _relaxed)
+ATOMIC_LONG_INC_DEC_OP(inc, _acquire)
+ATOMIC_LONG_INC_DEC_OP(inc, _release)
+ATOMIC_LONG_INC_DEC_OP(dec,)
+ATOMIC_LONG_INC_DEC_OP(dec, _relaxed)
+ATOMIC_LONG_INC_DEC_OP(dec, _acquire)
+ATOMIC_LONG_INC_DEC_OP(dec, _release)
+
+#undef ATOMIC_LONG_INC_DEC_OP
+
+static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
+{
+	ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l;
+
+	return (long)ATOMIC_LONG_PFX(_add_unless)(v, a, u);
+}
+
+#define atomic_long_inc_not_zero(l) \
+	ATOMIC_LONG_PFX(_inc_not_zero)((ATOMIC_LONG_PFX(_t) *)(l))
+
+#define atomic_long_cond_read_relaxed(v, c) \
+	ATOMIC_LONG_PFX(_cond_read_relaxed)((ATOMIC_LONG_PFX(_t) *)(v), (c))
+#define atomic_long_cond_read_acquire(v, c) \
+	ATOMIC_LONG_PFX(_cond_read_acquire)((ATOMIC_LONG_PFX(_t) *)(v), (c))
+
+#endif  /*  _ASM_GENERIC_ATOMIC_LONG_H  */