1 #ifndef __ASM_SH_ATOMIC_GRB_H 2 #define __ASM_SH_ATOMIC_GRB_H 3 4 #define ATOMIC_OP(op) \ 5 static inline void atomic_##op(int i, atomic_t *v) \ 6 { \ 7 int tmp; \ 8 \ 9 __asm__ __volatile__ ( \ 10 " .align 2 \n\t" \ 11 " mova 1f, r0 \n\t" /* r0 = end point */ \ 12 " mov r15, r1 \n\t" /* r1 = saved sp */ \ 13 " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ \ 14 " mov.l @%1, %0 \n\t" /* load old value */ \ 15 " " #op " %2, %0 \n\t" /* $op */ \ 16 " mov.l %0, @%1 \n\t" /* store new value */ \ 17 "1: mov r1, r15 \n\t" /* LOGOUT */ \ 18 : "=&r" (tmp), \ 19 "+r" (v) \ 20 : "r" (i) \ 21 : "memory" , "r0", "r1"); \ 22 } \ 23 24 #define ATOMIC_OP_RETURN(op) \ 25 static inline int atomic_##op##_return(int i, atomic_t *v) \ 26 { \ 27 int tmp; \ 28 \ 29 __asm__ __volatile__ ( \ 30 " .align 2 \n\t" \ 31 " mova 1f, r0 \n\t" /* r0 = end point */ \ 32 " mov r15, r1 \n\t" /* r1 = saved sp */ \ 33 " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ \ 34 " mov.l @%1, %0 \n\t" /* load old value */ \ 35 " " #op " %2, %0 \n\t" /* $op */ \ 36 " mov.l %0, @%1 \n\t" /* store new value */ \ 37 "1: mov r1, r15 \n\t" /* LOGOUT */ \ 38 : "=&r" (tmp), \ 39 "+r" (v) \ 40 : "r" (i) \ 41 : "memory" , "r0", "r1"); \ 42 \ 43 return tmp; \ 44 } 45 46 #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) 47 48 ATOMIC_OPS(add) 49 ATOMIC_OPS(sub) 50 51 ATOMIC_OP(and) 52 ATOMIC_OP(or) 53 ATOMIC_OP(xor) 54 55 #undef ATOMIC_OPS 56 #undef ATOMIC_OP_RETURN 57 #undef ATOMIC_OP 58 59 #endif /* __ASM_SH_ATOMIC_GRB_H */ 60