1#ifndef _ASM_M32R_BITOPS_H
2#define _ASM_M32R_BITOPS_H
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14#ifndef _LINUX_BITOPS_H
15#error only <linux/bitops.h> can be included directly
16#endif
17
18#include <linux/compiler.h>
19#include <asm/assembler.h>
20#include <asm/system.h>
21#include <asm/byteorder.h>
22#include <asm/types.h>
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42static __inline__ void set_bit(int nr, volatile void * addr)
43{
44 __u32 mask;
45 volatile __u32 *a = addr;
46 unsigned long flags;
47 unsigned long tmp;
48
49 a += (nr >> 5);
50 mask = (1 << (nr & 0x1F));
51
52 local_irq_save(flags);
53 __asm__ __volatile__ (
54 DCACHE_CLEAR("%0", "r6", "%1")
55 M32R_LOCK" %0, @%1; \n\t"
56 "or %0, %2; \n\t"
57 M32R_UNLOCK" %0, @%1; \n\t"
58 : "=&r" (tmp)
59 : "r" (a), "r" (mask)
60 : "memory"
61#ifdef CONFIG_CHIP_M32700_TS1
62 , "r6"
63#endif
64 );
65 local_irq_restore(flags);
66}
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77
78static __inline__ void clear_bit(int nr, volatile void * addr)
79{
80 __u32 mask;
81 volatile __u32 *a = addr;
82 unsigned long flags;
83 unsigned long tmp;
84
85 a += (nr >> 5);
86 mask = (1 << (nr & 0x1F));
87
88 local_irq_save(flags);
89
90 __asm__ __volatile__ (
91 DCACHE_CLEAR("%0", "r6", "%1")
92 M32R_LOCK" %0, @%1; \n\t"
93 "and %0, %2; \n\t"
94 M32R_UNLOCK" %0, @%1; \n\t"
95 : "=&r" (tmp)
96 : "r" (a), "r" (~mask)
97 : "memory"
98#ifdef CONFIG_CHIP_M32700_TS1
99 , "r6"
100#endif
101 );
102 local_irq_restore(flags);
103}
104
105#define smp_mb__before_clear_bit() barrier()
106#define smp_mb__after_clear_bit() barrier()
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116
117static __inline__ void change_bit(int nr, volatile void * addr)
118{
119 __u32 mask;
120 volatile __u32 *a = addr;
121 unsigned long flags;
122 unsigned long tmp;
123
124 a += (nr >> 5);
125 mask = (1 << (nr & 0x1F));
126
127 local_irq_save(flags);
128 __asm__ __volatile__ (
129 DCACHE_CLEAR("%0", "r6", "%1")
130 M32R_LOCK" %0, @%1; \n\t"
131 "xor %0, %2; \n\t"
132 M32R_UNLOCK" %0, @%1; \n\t"
133 : "=&r" (tmp)
134 : "r" (a), "r" (mask)
135 : "memory"
136#ifdef CONFIG_CHIP_M32700_TS1
137 , "r6"
138#endif
139 );
140 local_irq_restore(flags);
141}
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150
151static __inline__ int test_and_set_bit(int nr, volatile void * addr)
152{
153 __u32 mask, oldbit;
154 volatile __u32 *a = addr;
155 unsigned long flags;
156 unsigned long tmp;
157
158 a += (nr >> 5);
159 mask = (1 << (nr & 0x1F));
160
161 local_irq_save(flags);
162 __asm__ __volatile__ (
163 DCACHE_CLEAR("%0", "%1", "%2")
164 M32R_LOCK" %0, @%2; \n\t"
165 "mv %1, %0; \n\t"
166 "and %0, %3; \n\t"
167 "or %1, %3; \n\t"
168 M32R_UNLOCK" %1, @%2; \n\t"
169 : "=&r" (oldbit), "=&r" (tmp)
170 : "r" (a), "r" (mask)
171 : "memory"
172 );
173 local_irq_restore(flags);
174
175 return (oldbit != 0);
176}
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185
186static __inline__ int test_and_clear_bit(int nr, volatile void * addr)
187{
188 __u32 mask, oldbit;
189 volatile __u32 *a = addr;
190 unsigned long flags;
191 unsigned long tmp;
192
193 a += (nr >> 5);
194 mask = (1 << (nr & 0x1F));
195
196 local_irq_save(flags);
197
198 __asm__ __volatile__ (
199 DCACHE_CLEAR("%0", "%1", "%3")
200 M32R_LOCK" %0, @%3; \n\t"
201 "mv %1, %0; \n\t"
202 "and %0, %2; \n\t"
203 "not %2, %2; \n\t"
204 "and %1, %2; \n\t"
205 M32R_UNLOCK" %1, @%3; \n\t"
206 : "=&r" (oldbit), "=&r" (tmp), "+r" (mask)
207 : "r" (a)
208 : "memory"
209 );
210 local_irq_restore(flags);
211
212 return (oldbit != 0);
213}
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222
223static __inline__ int test_and_change_bit(int nr, volatile void * addr)
224{
225 __u32 mask, oldbit;
226 volatile __u32 *a = addr;
227 unsigned long flags;
228 unsigned long tmp;
229
230 a += (nr >> 5);
231 mask = (1 << (nr & 0x1F));
232
233 local_irq_save(flags);
234 __asm__ __volatile__ (
235 DCACHE_CLEAR("%0", "%1", "%2")
236 M32R_LOCK" %0, @%2; \n\t"
237 "mv %1, %0; \n\t"
238 "and %0, %3; \n\t"
239 "xor %1, %3; \n\t"
240 M32R_UNLOCK" %1, @%2; \n\t"
241 : "=&r" (oldbit), "=&r" (tmp)
242 : "r" (a), "r" (mask)
243 : "memory"
244 );
245 local_irq_restore(flags);
246
247 return (oldbit != 0);
248}
249
250#include <asm-generic/bitops/non-atomic.h>
251#include <asm-generic/bitops/ffz.h>
252#include <asm-generic/bitops/__ffs.h>
253#include <asm-generic/bitops/fls.h>
254#include <asm-generic/bitops/__fls.h>
255#include <asm-generic/bitops/fls64.h>
256
257#ifdef __KERNEL__
258
259#include <asm-generic/bitops/sched.h>
260#include <asm-generic/bitops/find.h>
261#include <asm-generic/bitops/ffs.h>
262#include <asm-generic/bitops/hweight.h>
263#include <asm-generic/bitops/lock.h>
264
265#endif
266
267#ifdef __KERNEL__
268
269#include <asm-generic/bitops/le.h>
270#include <asm-generic/bitops/ext2-atomic.h>
271
272#endif
273
274#endif
275