31,10 → 31,36 |
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#include <arch/types.h> |
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extern void atomic_inc(volatile int *val); |
extern void atomic_dec(volatile int *val); |
static inline void atomic_inc(volatile int *val) { |
#ifdef __SMP__ |
__asm__ volatile ("lock incl (%0)\n" : : "r" (val)); |
#else |
__asm__ volatile ("incl (%0)\n" : : "r" (val)); |
#endif /* __SMP__ */ |
} |
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extern int test_and_set(int *val); |
static inline void atomic_dec(volatile int *val) { |
#ifdef __SMP__ |
__asm__ volatile ("lock decl (%0)\n" : : "r" (val)); |
#else |
__asm__ volatile ("decl (%0)\n" : : "r" (val)); |
#endif /* __SMP__ */ |
} |
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static inline int test_and_set(int *val) { |
int v; |
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__asm__ volatile ( |
"movl $1, %0\n" |
"xchgl %0, (%1)\n" |
: "=r" (v) |
: "r" (val) |
); |
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return v; |
} |
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extern void spinlock_arch(int *val); |
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#endif |