/* 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 */