[ARM] 3397/1: AT91RM9200 Header update

[linux-2.6-omap-h63xx.git] / include / asm-mips / atomic.h

diff --git a/include/asm-mips/atomic.h b/include/asm-mips/atomic.h
index 55c37c106ef00a364a532bb966019ddda9fbcd9e..2c8b853376c995892680d5cf3f9b139b57bc5b5b 100644 (file)
--- a/include/asm-mips/atomic.h
+++ b/include/asm-mips/atomic.h
@@ -24,10 +24,9 @@
 #define _ASM_ATOMIC_H
 
 #include <asm/cpu-features.h>
+#include <asm/interrupt.h>
 #include <asm/war.h>
 
-extern spinlock_t atomic_lock;
-
 typedef struct { volatile int counter; } atomic_t;
 
 #define ATOMIC_INIT(i)    { (i) }
@@ -85,9 +84,9 @@ static __inline__ void atomic_add(int i, atomic_t * v)
        } else {
                unsigned long flags;
 
-               spin_lock_irqsave(&atomic_lock, flags);
+               local_irq_save(flags);
                v->counter += i;
-               spin_unlock_irqrestore(&atomic_lock, flags);
+               local_irq_restore(flags);
        }
 }
 
@@ -127,9 +126,9 @@ static __inline__ void atomic_sub(int i, atomic_t * v)
        } else {
                unsigned long flags;
 
-               spin_lock_irqsave(&atomic_lock, flags);
+               local_irq_save(flags);
                v->counter -= i;
-               spin_unlock_irqrestore(&atomic_lock, flags);
+               local_irq_restore(flags);
        }
 }
 
@@ -173,11 +172,11 @@ static __inline__ int atomic_add_return(int i, atomic_t * v)
        } else {
                unsigned long flags;
 
-               spin_lock_irqsave(&atomic_lock, flags);
+               local_irq_save(flags);
                result = v->counter;
                result += i;
                v->counter = result;
-               spin_unlock_irqrestore(&atomic_lock, flags);
+               local_irq_restore(flags);
        }
 
        return result;
@@ -220,11 +219,11 @@ static __inline__ int atomic_sub_return(int i, atomic_t * v)
        } else {
                unsigned long flags;
 
-               spin_lock_irqsave(&atomic_lock, flags);
+               local_irq_save(flags);
                result = v->counter;
                result -= i;
                v->counter = result;
-               spin_unlock_irqrestore(&atomic_lock, flags);
+               local_irq_restore(flags);
        }
 
        return result;
@@ -251,7 +250,10 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
                "       subu    %0, %1, %3                              \n"
                "       bltz    %0, 1f                                  \n"
                "       sc      %0, %2                                  \n"
+               "       .set    noreorder                               \n"
                "       beqzl   %0, 1b                                  \n"
+               "        subu   %0, %1, %3                              \n"
+               "       .set    reorder                                 \n"
                "       sync                                            \n"
                "1:                                                     \n"
                "       .set    mips0                                   \n"
@@ -267,7 +269,10 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
                "       subu    %0, %1, %3                              \n"
                "       bltz    %0, 1f                                  \n"
                "       sc      %0, %2                                  \n"
+               "       .set    noreorder                               \n"
                "       beqz    %0, 1b                                  \n"
+               "        subu   %0, %1, %3                              \n"
+               "       .set    reorder                                 \n"
                "       sync                                            \n"
                "1:                                                     \n"
                "       .set    mips0                                   \n"
@@ -277,18 +282,19 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
        } else {
                unsigned long flags;
 
-               spin_lock_irqsave(&atomic_lock, flags);
+               local_irq_save(flags);
                result = v->counter;
                result -= i;
                if (result >= 0)
                        v->counter = result;
-               spin_unlock_irqrestore(&atomic_lock, flags);
+               local_irq_restore(flags);
        }
 
        return result;
 }
 
 #define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
 
 /**
  * atomic_add_unless - add unless the number is a given value
@@ -432,9 +438,9 @@ static __inline__ void atomic64_add(long i, atomic64_t * v)
        } else {
                unsigned long flags;
 
-               spin_lock_irqsave(&atomic_lock, flags);
+               local_irq_save(flags);
                v->counter += i;
-               spin_unlock_irqrestore(&atomic_lock, flags);
+               local_irq_restore(flags);
        }
 }
 
@@ -474,9 +480,9 @@ static __inline__ void atomic64_sub(long i, atomic64_t * v)
        } else {
                unsigned long flags;
 
-               spin_lock_irqsave(&atomic_lock, flags);
+               local_irq_save(flags);
                v->counter -= i;
-               spin_unlock_irqrestore(&atomic_lock, flags);
+               local_irq_restore(flags);
        }
 }
 
@@ -520,11 +526,11 @@ static __inline__ long atomic64_add_return(long i, atomic64_t * v)
        } else {
                unsigned long flags;
 
-               spin_lock_irqsave(&atomic_lock, flags);
+               local_irq_save(flags);
                result = v->counter;
                result += i;
                v->counter = result;
-               spin_unlock_irqrestore(&atomic_lock, flags);
+               local_irq_restore(flags);
        }
 
        return result;
@@ -567,11 +573,11 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v)
        } else {
                unsigned long flags;
 
-               spin_lock_irqsave(&atomic_lock, flags);
+               local_irq_save(flags);
                result = v->counter;
                result -= i;
                v->counter = result;
-               spin_unlock_irqrestore(&atomic_lock, flags);
+               local_irq_restore(flags);
        }
 
        return result;
@@ -598,7 +604,10 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
                "       dsubu   %0, %1, %3                              \n"
                "       bltz    %0, 1f                                  \n"
                "       scd     %0, %2                                  \n"
+               "       .set    noreorder                               \n"
                "       beqzl   %0, 1b                                  \n"
+               "        dsubu  %0, %1, %3                              \n"
+               "       .set    reorder                                 \n"
                "       sync                                            \n"
                "1:                                                     \n"
                "       .set    mips0                                   \n"
@@ -614,7 +623,10 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
                "       dsubu   %0, %1, %3                              \n"
                "       bltz    %0, 1f                                  \n"
                "       scd     %0, %2                                  \n"
+               "       .set    noreorder                               \n"
                "       beqz    %0, 1b                                  \n"
+               "        dsubu  %0, %1, %3                              \n"
+               "       .set    reorder                                 \n"
                "       sync                                            \n"
                "1:                                                     \n"
                "       .set    mips0                                   \n"
@@ -624,12 +636,12 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
        } else {
                unsigned long flags;
 
-               spin_lock_irqsave(&atomic_lock, flags);
+               local_irq_save(flags);
                result = v->counter;
                result -= i;
                if (result >= 0)
                        v->counter = result;
-               spin_unlock_irqrestore(&atomic_lock, flags);
+               local_irq_restore(flags);
        }
 
        return result;
@@ -713,4 +725,5 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
 #define smp_mb__before_atomic_inc()    smp_mb()
 #define smp_mb__after_atomic_inc()     smp_mb()
 
+#include <asm-generic/atomic.h>
 #endif /* _ASM_ATOMIC_H */