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Diffstat (limited to 'arch/h8300/include/asm/atomic.h')
-rw-r--r--arch/h8300/include/asm/atomic.h97
1 files changed, 0 insertions, 97 deletions
diff --git a/arch/h8300/include/asm/atomic.h b/arch/h8300/include/asm/atomic.h
deleted file mode 100644
index a990d151f163..000000000000
--- a/arch/h8300/include/asm/atomic.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ARCH_H8300_ATOMIC__
-#define __ARCH_H8300_ATOMIC__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <asm/cmpxchg.h>
-#include <asm/irqflags.h>
-
-/*
- * Atomic operations that C can't guarantee us. Useful for
- * resource counting etc..
- */
-
-#define atomic_read(v) READ_ONCE((v)->counter)
-#define atomic_set(v, i) WRITE_ONCE(((v)->counter), (i))
-
-#define ATOMIC_OP_RETURN(op, c_op) \
-static inline int atomic_##op##_return(int i, atomic_t *v) \
-{ \
- h8300flags flags; \
- int ret; \
- \
- flags = arch_local_irq_save(); \
- ret = v->counter c_op i; \
- arch_local_irq_restore(flags); \
- return ret; \
-}
-
-#define ATOMIC_FETCH_OP(op, c_op) \
-static inline int atomic_fetch_##op(int i, atomic_t *v) \
-{ \
- h8300flags flags; \
- int ret; \
- \
- flags = arch_local_irq_save(); \
- ret = v->counter; \
- v->counter c_op i; \
- arch_local_irq_restore(flags); \
- return ret; \
-}
-
-#define ATOMIC_OP(op, c_op) \
-static inline void atomic_##op(int i, atomic_t *v) \
-{ \
- h8300flags flags; \
- \
- flags = arch_local_irq_save(); \
- v->counter c_op i; \
- arch_local_irq_restore(flags); \
-}
-
-ATOMIC_OP_RETURN(add, +=)
-ATOMIC_OP_RETURN(sub, -=)
-
-#define ATOMIC_OPS(op, c_op) \
- ATOMIC_OP(op, c_op) \
- ATOMIC_FETCH_OP(op, c_op)
-
-ATOMIC_OPS(and, &=)
-ATOMIC_OPS(or, |=)
-ATOMIC_OPS(xor, ^=)
-ATOMIC_OPS(add, +=)
-ATOMIC_OPS(sub, -=)
-
-#undef ATOMIC_OPS
-#undef ATOMIC_OP_RETURN
-#undef ATOMIC_OP
-
-static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
-{
- int ret;
- h8300flags flags;
-
- flags = arch_local_irq_save();
- ret = v->counter;
- if (likely(ret == old))
- v->counter = new;
- arch_local_irq_restore(flags);
- return ret;
-}
-
-static inline int atomic_fetch_add_unless(atomic_t *v, int a, int u)
-{
- int ret;
- h8300flags flags;
-
- flags = arch_local_irq_save();
- ret = v->counter;
- if (ret != u)
- v->counter += a;
- arch_local_irq_restore(flags);
- return ret;
-}
-#define atomic_fetch_add_unless atomic_fetch_add_unless
-
-#endif /* __ARCH_H8300_ATOMIC __ */