1#ifndef __ASM_SH_BITOPS_GRB_H 2#define __ASM_SH_BITOPS_GRB_H 3 4static inline void set_bit(int nr, volatile void * addr) 5{ 6 int mask; 7 volatile unsigned int *a = addr; 8 unsigned long tmp; 9 10 a += nr >> 5; 11 mask = 1 << (nr & 0x1f); 12 13 __asm__ __volatile__ ( 14 " .align 2 \n\t" 15 " mova 1f, r0 \n\t" /* r0 = end point */ 16 " mov r15, r1 \n\t" /* r1 = saved sp */ 17 " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ 18 " mov.l @%1, %0 \n\t" /* load old value */ 19 " or %2, %0 \n\t" /* or */ 20 " mov.l %0, @%1 \n\t" /* store new value */ 21 "1: mov r1, r15 \n\t" /* LOGOUT */ 22 : "=&r" (tmp), 23 "+r" (a) 24 : "r" (mask) 25 : "memory" , "r0", "r1"); 26} 27 28static inline void clear_bit(int nr, volatile void * addr) 29{ 30 int mask; 31 volatile unsigned int *a = addr; 32 unsigned long tmp; 33 34 a += nr >> 5; 35 mask = ~(1 << (nr & 0x1f)); 36 __asm__ __volatile__ ( 37 " .align 2 \n\t" 38 " mova 1f, r0 \n\t" /* r0 = end point */ 39 " mov r15, r1 \n\t" /* r1 = saved sp */ 40 " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ 41 " mov.l @%1, %0 \n\t" /* load old value */ 42 " and %2, %0 \n\t" /* and */ 43 " mov.l %0, @%1 \n\t" /* store new value */ 44 "1: mov r1, r15 \n\t" /* LOGOUT */ 45 : "=&r" (tmp), 46 "+r" (a) 47 : "r" (mask) 48 : "memory" , "r0", "r1"); 49} 50 51static inline void change_bit(int nr, volatile void * addr) 52{ 53 int mask; 54 volatile unsigned int *a = addr; 55 unsigned long tmp; 56 57 a += nr >> 5; 58 mask = 1 << (nr & 0x1f); 59 __asm__ __volatile__ ( 60 " .align 2 \n\t" 61 " mova 1f, r0 \n\t" /* r0 = end point */ 62 " mov r15, r1 \n\t" /* r1 = saved sp */ 63 " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ 64 " mov.l @%1, %0 \n\t" /* load old value */ 65 " xor %2, %0 \n\t" /* xor */ 66 " mov.l %0, @%1 \n\t" /* store new value */ 67 "1: mov r1, r15 \n\t" /* LOGOUT */ 68 : "=&r" (tmp), 69 "+r" (a) 70 : "r" (mask) 71 : "memory" , "r0", "r1"); 72} 73 74static inline int test_and_set_bit(int nr, volatile void * addr) 75{ 76 int mask, retval; 77 volatile unsigned int *a = addr; 78 unsigned long tmp; 79 80 a += nr >> 5; 81 mask = 1 << (nr & 0x1f); 82 83 __asm__ __volatile__ ( 84 " .align 2 \n\t" 85 " mova 1f, r0 \n\t" /* r0 = end point */ 86 " mov r15, r1 \n\t" /* r1 = saved sp */ 87 " mov #-14, r15 \n\t" /* LOGIN: r15 = size */ 88 " mov.l @%2, %0 \n\t" /* load old value */ 89 " mov %0, %1 \n\t" 90 " tst %1, %3 \n\t" /* T = ((*a & mask) == 0) */ 91 " mov #-1, %1 \n\t" /* retvat = -1 */ 92 " negc %1, %1 \n\t" /* retval = (mask & *a) != 0 */ 93 " or %3, %0 \n\t" 94 " mov.l %0, @%2 \n\t" /* store new value */ 95 "1: mov r1, r15 \n\t" /* LOGOUT */ 96 : "=&r" (tmp), 97 "=&r" (retval), 98 "+r" (a) 99 : "r" (mask) 100 : "memory" , "r0", "r1" ,"t"); 101 102 return retval; 103} 104 105static inline int test_and_clear_bit(int nr, volatile void * addr) 106{ 107 int mask, retval,not_mask; 108 volatile unsigned int *a = addr; 109 unsigned long tmp; 110 111 a += nr >> 5; 112 mask = 1 << (nr & 0x1f); 113 114 not_mask = ~mask; 115 116 __asm__ __volatile__ ( 117 " .align 2 \n\t" 118 " mova 1f, r0 \n\t" /* r0 = end point */ 119 " mov r15, r1 \n\t" /* r1 = saved sp */ 120 " mov #-14, r15 \n\t" /* LOGIN */ 121 " mov.l @%2, %0 \n\t" /* load old value */ 122 " mov %0, %1 \n\t" /* %1 = *a */ 123 " tst %1, %3 \n\t" /* T = ((*a & mask) == 0) */ 124 " mov #-1, %1 \n\t" /* retvat = -1 */ 125 " negc %1, %1 \n\t" /* retval = (mask & *a) != 0 */ 126 " and %4, %0 \n\t" 127 " mov.l %0, @%2 \n\t" /* store new value */ 128 "1: mov r1, r15 \n\t" /* LOGOUT */ 129 : "=&r" (tmp), 130 "=&r" (retval), 131 "+r" (a) 132 : "r" (mask), 133 "r" (not_mask) 134 : "memory" , "r0", "r1", "t"); 135 136 return retval; 137} 138 139static inline int test_and_change_bit(int nr, volatile void * addr) 140{ 141 int mask, retval; 142 volatile unsigned int *a = addr; 143 unsigned long tmp; 144 145 a += nr >> 5; 146 mask = 1 << (nr & 0x1f); 147 148 __asm__ __volatile__ ( 149 " .align 2 \n\t" 150 " mova 1f, r0 \n\t" /* r0 = end point */ 151 " mov r15, r1 \n\t" /* r1 = saved sp */ 152 " mov #-14, r15 \n\t" /* LOGIN */ 153 " mov.l @%2, %0 \n\t" /* load old value */ 154 " mov %0, %1 \n\t" /* %1 = *a */ 155 " tst %1, %3 \n\t" /* T = ((*a & mask) == 0) */ 156 " mov #-1, %1 \n\t" /* retvat = -1 */ 157 " negc %1, %1 \n\t" /* retval = (mask & *a) != 0 */ 158 " xor %3, %0 \n\t" 159 " mov.l %0, @%2 \n\t" /* store new value */ 160 "1: mov r1, r15 \n\t" /* LOGOUT */ 161 : "=&r" (tmp), 162 "=&r" (retval), 163 "+r" (a) 164 : "r" (mask) 165 : "memory" , "r0", "r1", "t"); 166 167 return retval; 168} 169 170#include <asm-generic/bitops/non-atomic.h> 171 172#endif /* __ASM_SH_BITOPS_GRB_H */ 173