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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef __ASM_SH_ATOMIC_GRB_H
- #define __ASM_SH_ATOMIC_GRB_H
- #define ATOMIC_OP(op) \
- static inline void atomic_##op(int i, atomic_t *v) \
- { \
- int tmp; \
- \
- __asm__ __volatile__ ( \
- " .align 2 \n\t" \
- " mova 1f, r0 \n\t" /* r0 = end point */ \
- " mov r15, r1 \n\t" /* r1 = saved sp */ \
- " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ \
- " mov.l @%1, %0 \n\t" /* load old value */ \
- " " #op " %2, %0 \n\t" /* $op */ \
- " mov.l %0, @%1 \n\t" /* store new value */ \
- "1: mov r1, r15 \n\t" /* LOGOUT */ \
- : "=&r" (tmp), \
- "+r" (v) \
- : "r" (i) \
- : "memory" , "r0", "r1"); \
- } \
- #define ATOMIC_OP_RETURN(op) \
- static inline int atomic_##op##_return(int i, atomic_t *v) \
- { \
- int tmp; \
- \
- __asm__ __volatile__ ( \
- " .align 2 \n\t" \
- " mova 1f, r0 \n\t" /* r0 = end point */ \
- " mov r15, r1 \n\t" /* r1 = saved sp */ \
- " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ \
- " mov.l @%1, %0 \n\t" /* load old value */ \
- " " #op " %2, %0 \n\t" /* $op */ \
- " mov.l %0, @%1 \n\t" /* store new value */ \
- "1: mov r1, r15 \n\t" /* LOGOUT */ \
- : "=&r" (tmp), \
- "+r" (v) \
- : "r" (i) \
- : "memory" , "r0", "r1"); \
- \
- return tmp; \
- }
- #define ATOMIC_FETCH_OP(op) \
- static inline int atomic_fetch_##op(int i, atomic_t *v) \
- { \
- int res, tmp; \
- \
- __asm__ __volatile__ ( \
- " .align 2 \n\t" \
- " mova 1f, r0 \n\t" /* r0 = end point */ \
- " mov r15, r1 \n\t" /* r1 = saved sp */ \
- " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ \
- " mov.l @%2, %0 \n\t" /* load old value */ \
- " mov %0, %1 \n\t" /* save old value */ \
- " " #op " %3, %0 \n\t" /* $op */ \
- " mov.l %0, @%2 \n\t" /* store new value */ \
- "1: mov r1, r15 \n\t" /* LOGOUT */ \
- : "=&r" (tmp), "=&r" (res), "+r" (v) \
- : "r" (i) \
- : "memory" , "r0", "r1"); \
- \
- return res; \
- }
- #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) ATOMIC_FETCH_OP(op)
- ATOMIC_OPS(add)
- ATOMIC_OPS(sub)
- #undef ATOMIC_OPS
- #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op)
- ATOMIC_OPS(and)
- ATOMIC_OPS(or)
- ATOMIC_OPS(xor)
- #undef ATOMIC_OPS
- #undef ATOMIC_FETCH_OP
- #undef ATOMIC_OP_RETURN
- #undef ATOMIC_OP
- #endif /* __ASM_SH_ATOMIC_GRB_H */
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