1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_SH_ATOMIC_IRQ_H
3 #define __ASM_SH_ATOMIC_IRQ_H
5 #include <linux/irqflags.h>
8 * To get proper branch prediction for the main line, we must branch
9 * forward to code at the end of this object's .text section, then
10 * branch back to restart the operation.
13 #define ATOMIC_OP(op, c_op) \
14 static inline void arch_atomic_##op(int i, atomic_t *v) \
16 unsigned long flags; \
18 raw_local_irq_save(flags); \
20 raw_local_irq_restore(flags); \
23 #define ATOMIC_OP_RETURN(op, c_op) \
24 static inline int arch_atomic_##op##_return(int i, atomic_t *v) \
26 unsigned long temp, flags; \
28 raw_local_irq_save(flags); \
32 raw_local_irq_restore(flags); \
37 #define ATOMIC_FETCH_OP(op, c_op) \
38 static inline int arch_atomic_fetch_##op(int i, atomic_t *v) \
40 unsigned long temp, flags; \
42 raw_local_irq_save(flags); \
45 raw_local_irq_restore(flags); \
50 #define ATOMIC_OPS(op, c_op) \
52 ATOMIC_OP_RETURN(op, c_op) \
53 ATOMIC_FETCH_OP(op, c_op)
58 #define arch_atomic_add_return arch_atomic_add_return
59 #define arch_atomic_sub_return arch_atomic_sub_return
60 #define arch_atomic_fetch_add arch_atomic_fetch_add
61 #define arch_atomic_fetch_sub arch_atomic_fetch_sub
64 #define ATOMIC_OPS(op, c_op) \
66 ATOMIC_FETCH_OP(op, c_op)
72 #define arch_atomic_fetch_and arch_atomic_fetch_and
73 #define arch_atomic_fetch_or arch_atomic_fetch_or
74 #define arch_atomic_fetch_xor arch_atomic_fetch_xor
77 #undef ATOMIC_FETCH_OP
78 #undef ATOMIC_OP_RETURN
81 #endif /* __ASM_SH_ATOMIC_IRQ_H */