1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __ASM_SH_ATOMIC_GRB_H 3 #define __ASM_SH_ATOMIC_GRB_H 4 5 #define ATOMIC_OP(op) \ 6 static inline void arch_atomic_##op(int i, atomic_t *v) \ 7 { \ 8 int tmp; \ 9 \ 10 __asm__ __volatile__ ( \ 11 " .align 2 \n\t" \ 12 " mova 1f, r0 \n\t" /* r0 = end point */ \ 13 " mov r15, r1 \n\t" /* r1 = saved sp */ \ 14 " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ \ 15 " mov.l @%1, %0 \n\t" /* load old value */ \ 16 " " #op " %2, %0 \n\t" /* $op */ \ 17 " mov.l %0, @%1 \n\t" /* store new value */ \ 18 "1: mov r1, r15 \n\t" /* LOGOUT */ \ 19 : "=&r" (tmp), \ 20 "+r" (v) \ 21 : "r" (i) \ 22 : "memory" , "r0", "r1"); \ 23 } \ 24 25 #define ATOMIC_OP_RETURN(op) \ 26 static inline int arch_atomic_##op##_return(int i, atomic_t *v) \ 27 { \ 28 int tmp; \ 29 \ 30 __asm__ __volatile__ ( \ 31 " .align 2 \n\t" \ 32 " mova 1f, r0 \n\t" /* r0 = end point */ \ 33 " mov r15, r1 \n\t" /* r1 = saved sp */ \ 34 " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ \ 35 " mov.l @%1, %0 \n\t" /* load old value */ \ 36 " " #op " %2, %0 \n\t" /* $op */ \ 37 " mov.l %0, @%1 \n\t" /* store new value */ \ 38 "1: mov r1, r15 \n\t" /* LOGOUT */ \ 39 : "=&r" (tmp), \ 40 "+r" (v) \ 41 : "r" (i) \ 42 : "memory" , "r0", "r1"); \ 43 \ 44 return tmp; \ 45 } 46 47 #define ATOMIC_FETCH_OP(op) \ 48 static inline int arch_atomic_fetch_##op(int i, atomic_t *v) \ 49 { \ 50 int res, tmp; \ 51 \ 52 __asm__ __volatile__ ( \ 53 " .align 2 \n\t" \ 54 " mova 1f, r0 \n\t" /* r0 = end point */ \ 55 " mov r15, r1 \n\t" /* r1 = saved sp */ \ 56 " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ \ 57 " mov.l @%2, %0 \n\t" /* load old value */ \ 58 " mov %0, %1 \n\t" /* save old value */ \ 59 " " #op " %3, %0 \n\t" /* $op */ \ 60 " mov.l %0, @%2 \n\t" /* store new value */ \ 61 "1: mov r1, r15 \n\t" /* LOGOUT */ \ 62 : "=&r" (tmp), "=&r" (res), "+r" (v) \ 63 : "r" (i) \ 64 : "memory" , "r0", "r1"); \ 65 \ 66 return res; \ 67 } 68 69 #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) ATOMIC_FETCH_OP(op) 70 71 ATOMIC_OPS(add) 72 ATOMIC_OPS(sub) 73 74 #undef ATOMIC_OPS 75 #define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op) 76 77 ATOMIC_OPS(and) 78 ATOMIC_OPS(or) 79 ATOMIC_OPS(xor) 80 81 #undef ATOMIC_OPS 82 #undef ATOMIC_FETCH_OP 83 #undef ATOMIC_OP_RETURN 84 #undef ATOMIC_OP 85 86 #endif /* __ASM_SH_ATOMIC_GRB_H */ 87