Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs...

[pandora-kernel.git] / arch / arm / include / asm / atomic.h

diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index a0162fa..86976d0 100644 (file)
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -40,12 +40,12 @@ static inline void atomic_add(int i, atomic_t *v)
        int result;
 
        __asm__ __volatile__("@ atomic_add\n"
-"1:    ldrex   %0, [%2]\n"
-"      add     %0, %0, %3\n"
-"      strex   %1, %0, [%2]\n"
+"1:    ldrex   %0, [%3]\n"
+"      add     %0, %0, %4\n"
+"      strex   %1, %0, [%3]\n"
 "      teq     %1, #0\n"
 "      bne     1b"
-       : "=&r" (result), "=&r" (tmp)
+       : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
        : "r" (&v->counter), "Ir" (i)
        : "cc");
 }
@@ -58,12 +58,12 @@ static inline int atomic_add_return(int i, atomic_t *v)
        smp_mb();
 
        __asm__ __volatile__("@ atomic_add_return\n"
-"1:    ldrex   %0, [%2]\n"
-"      add     %0, %0, %3\n"
-"      strex   %1, %0, [%2]\n"
+"1:    ldrex   %0, [%3]\n"
+"      add     %0, %0, %4\n"
+"      strex   %1, %0, [%3]\n"
 "      teq     %1, #0\n"
 "      bne     1b"
-       : "=&r" (result), "=&r" (tmp)
+       : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
        : "r" (&v->counter), "Ir" (i)
        : "cc");
 
@@ -78,12 +78,12 @@ static inline void atomic_sub(int i, atomic_t *v)
        int result;
 
        __asm__ __volatile__("@ atomic_sub\n"
-"1:    ldrex   %0, [%2]\n"
-"      sub     %0, %0, %3\n"
-"      strex   %1, %0, [%2]\n"
+"1:    ldrex   %0, [%3]\n"
+"      sub     %0, %0, %4\n"
+"      strex   %1, %0, [%3]\n"
 "      teq     %1, #0\n"
 "      bne     1b"
-       : "=&r" (result), "=&r" (tmp)
+       : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
        : "r" (&v->counter), "Ir" (i)
        : "cc");
 }
@@ -96,12 +96,12 @@ static inline int atomic_sub_return(int i, atomic_t *v)
        smp_mb();
 
        __asm__ __volatile__("@ atomic_sub_return\n"
-"1:    ldrex   %0, [%2]\n"
-"      sub     %0, %0, %3\n"
-"      strex   %1, %0, [%2]\n"
+"1:    ldrex   %0, [%3]\n"
+"      sub     %0, %0, %4\n"
+"      strex   %1, %0, [%3]\n"
 "      teq     %1, #0\n"
 "      bne     1b"
-       : "=&r" (result), "=&r" (tmp)
+       : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
        : "r" (&v->counter), "Ir" (i)
        : "cc");
 
@@ -118,11 +118,11 @@ static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new)
 
        do {
                __asm__ __volatile__("@ atomic_cmpxchg\n"
-               "ldrex  %1, [%2]\n"
+               "ldrex  %1, [%3]\n"
                "mov    %0, #0\n"
-               "teq    %1, %3\n"
-               "strexeq %0, %4, [%2]\n"
-                   : "=&r" (res), "=&r" (oldval)
+               "teq    %1, %4\n"
+               "strexeq %0, %5, [%3]\n"
+                   : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
                    : "r" (&ptr->counter), "Ir" (old), "r" (new)
                    : "cc");
        } while (res);
@@ -137,12 +137,12 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
        unsigned long tmp, tmp2;
 
        __asm__ __volatile__("@ atomic_clear_mask\n"
-"1:    ldrex   %0, [%2]\n"
-"      bic     %0, %0, %3\n"
-"      strex   %1, %0, [%2]\n"
+"1:    ldrex   %0, [%3]\n"
+"      bic     %0, %0, %4\n"
+"      strex   %1, %0, [%3]\n"
 "      teq     %1, #0\n"
 "      bne     1b"
-       : "=&r" (tmp), "=&r" (tmp2)
+       : "=&r" (tmp), "=&r" (tmp2), "+Qo" (*addr)
        : "r" (addr), "Ir" (mask)
        : "cc");
 }
@@ -208,16 +208,15 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
 
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
 
-static inline int atomic_add_unless(atomic_t *v, int a, int u)
+static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 {
        int c, old;
 
        c = atomic_read(v);
        while (c != u && (old = atomic_cmpxchg((v), c, c + a)) != c)
                c = old;
-       return c != u;
+       return c;
 }
-#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
 
 #define atomic_inc(v)          atomic_add(1, v)
 #define atomic_dec(v)          atomic_sub(1, v)
@@ -249,7 +248,7 @@ static inline u64 atomic64_read(atomic64_t *v)
        __asm__ __volatile__("@ atomic64_read\n"
 "      ldrexd  %0, %H0, [%1]"
        : "=&r" (result)
-       : "r" (&v->counter)
+       : "r" (&v->counter), "Qo" (v->counter)
        );
 
        return result;
@@ -260,11 +259,11 @@ static inline void atomic64_set(atomic64_t *v, u64 i)
        u64 tmp;
 
        __asm__ __volatile__("@ atomic64_set\n"
-"1:    ldrexd  %0, %H0, [%1]\n"
-"      strexd  %0, %2, %H2, [%1]\n"
+"1:    ldrexd  %0, %H0, [%2]\n"
+"      strexd  %0, %3, %H3, [%2]\n"
 "      teq     %0, #0\n"
 "      bne     1b"
-       : "=&r" (tmp)
+       : "=&r" (tmp), "=Qo" (v->counter)
        : "r" (&v->counter), "r" (i)
        : "cc");
 }
@@ -275,13 +274,13 @@ static inline void atomic64_add(u64 i, atomic64_t *v)
        unsigned long tmp;
 
        __asm__ __volatile__("@ atomic64_add\n"
-"1:    ldrexd  %0, %H0, [%2]\n"
-"      adds    %0, %0, %3\n"
-"      adc     %H0, %H0, %H3\n"
-"      strexd  %1, %0, %H0, [%2]\n"
+"1:    ldrexd  %0, %H0, [%3]\n"
+"      adds    %0, %0, %4\n"
+"      adc     %H0, %H0, %H4\n"
+"      strexd  %1, %0, %H0, [%3]\n"
 "      teq     %1, #0\n"
 "      bne     1b"
-       : "=&r" (result), "=&r" (tmp)
+       : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
        : "r" (&v->counter), "r" (i)
        : "cc");
 }
@@ -294,13 +293,13 @@ static inline u64 atomic64_add_return(u64 i, atomic64_t *v)
        smp_mb();
 
        __asm__ __volatile__("@ atomic64_add_return\n"
-"1:    ldrexd  %0, %H0, [%2]\n"
-"      adds    %0, %0, %3\n"
-"      adc     %H0, %H0, %H3\n"
-"      strexd  %1, %0, %H0, [%2]\n"
+"1:    ldrexd  %0, %H0, [%3]\n"
+"      adds    %0, %0, %4\n"
+"      adc     %H0, %H0, %H4\n"
+"      strexd  %1, %0, %H0, [%3]\n"
 "      teq     %1, #0\n"
 "      bne     1b"
-       : "=&r" (result), "=&r" (tmp)
+       : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
        : "r" (&v->counter), "r" (i)
        : "cc");
 
@@ -315,13 +314,13 @@ static inline void atomic64_sub(u64 i, atomic64_t *v)
        unsigned long tmp;
 
        __asm__ __volatile__("@ atomic64_sub\n"
-"1:    ldrexd  %0, %H0, [%2]\n"
-"      subs    %0, %0, %3\n"
-"      sbc     %H0, %H0, %H3\n"
-"      strexd  %1, %0, %H0, [%2]\n"
+"1:    ldrexd  %0, %H0, [%3]\n"
+"      subs    %0, %0, %4\n"
+"      sbc     %H0, %H0, %H4\n"
+"      strexd  %1, %0, %H0, [%3]\n"
 "      teq     %1, #0\n"
 "      bne     1b"
-       : "=&r" (result), "=&r" (tmp)
+       : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
        : "r" (&v->counter), "r" (i)
        : "cc");
 }
@@ -334,13 +333,13 @@ static inline u64 atomic64_sub_return(u64 i, atomic64_t *v)
        smp_mb();
 
        __asm__ __volatile__("@ atomic64_sub_return\n"
-"1:    ldrexd  %0, %H0, [%2]\n"
-"      subs    %0, %0, %3\n"
-"      sbc     %H0, %H0, %H3\n"
-"      strexd  %1, %0, %H0, [%2]\n"
+"1:    ldrexd  %0, %H0, [%3]\n"
+"      subs    %0, %0, %4\n"
+"      sbc     %H0, %H0, %H4\n"
+"      strexd  %1, %0, %H0, [%3]\n"
 "      teq     %1, #0\n"
 "      bne     1b"
-       : "=&r" (result), "=&r" (tmp)
+       : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
        : "r" (&v->counter), "r" (i)
        : "cc");
 
@@ -358,12 +357,12 @@ static inline u64 atomic64_cmpxchg(atomic64_t *ptr, u64 old, u64 new)
 
        do {
                __asm__ __volatile__("@ atomic64_cmpxchg\n"
-               "ldrexd         %1, %H1, [%2]\n"
+               "ldrexd         %1, %H1, [%3]\n"
                "mov            %0, #0\n"
-               "teq            %1, %3\n"
-               "teqeq          %H1, %H3\n"
-               "strexdeq       %0, %4, %H4, [%2]"
-               : "=&r" (res), "=&r" (oldval)
+               "teq            %1, %4\n"
+               "teqeq          %H1, %H4\n"
+               "strexdeq       %0, %5, %H5, [%3]"
+               : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
                : "r" (&ptr->counter), "r" (old), "r" (new)
                : "cc");
        } while (res);
@@ -381,11 +380,11 @@ static inline u64 atomic64_xchg(atomic64_t *ptr, u64 new)
        smp_mb();
 
        __asm__ __volatile__("@ atomic64_xchg\n"
-"1:    ldrexd  %0, %H0, [%2]\n"
-"      strexd  %1, %3, %H3, [%2]\n"
+"1:    ldrexd  %0, %H0, [%3]\n"
+"      strexd  %1, %4, %H4, [%3]\n"
 "      teq     %1, #0\n"
 "      bne     1b"
-       : "=&r" (result), "=&r" (tmp)
+       : "=&r" (result), "=&r" (tmp), "+Qo" (ptr->counter)
        : "r" (&ptr->counter), "r" (new)
        : "cc");
 
@@ -402,16 +401,16 @@ static inline u64 atomic64_dec_if_positive(atomic64_t *v)
        smp_mb();
 
        __asm__ __volatile__("@ atomic64_dec_if_positive\n"
-"1:    ldrexd  %0, %H0, [%2]\n"
+"1:    ldrexd  %0, %H0, [%3]\n"
 "      subs    %0, %0, #1\n"
 "      sbc     %H0, %H0, #0\n"
 "      teq     %H0, #0\n"
 "      bmi     2f\n"
-"      strexd  %1, %0, %H0, [%2]\n"
+"      strexd  %1, %0, %H0, [%3]\n"
 "      teq     %1, #0\n"
 "      bne     1b\n"
 "2:"
-       : "=&r" (result), "=&r" (tmp)
+       : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
        : "r" (&v->counter)
        : "cc");
 
@@ -429,18 +428,18 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
        smp_mb();
 
        __asm__ __volatile__("@ atomic64_add_unless\n"
-"1:    ldrexd  %0, %H0, [%3]\n"
-"      teq     %0, %4\n"
-"      teqeq   %H0, %H4\n"
+"1:    ldrexd  %0, %H0, [%4]\n"
+"      teq     %0, %5\n"
+"      teqeq   %H0, %H5\n"
 "      moveq   %1, #0\n"
 "      beq     2f\n"
-"      adds    %0, %0, %5\n"
-"      adc     %H0, %H0, %H5\n"
-"      strexd  %2, %0, %H0, [%3]\n"
+"      adds    %0, %0, %6\n"
+"      adc     %H0, %H0, %H6\n"
+"      strexd  %2, %0, %H0, [%4]\n"
 "      teq     %2, #0\n"
 "      bne     1b\n"
 "2:"
-       : "=&r" (val), "=&r" (ret), "=&r" (tmp)
+       : "=&r" (val), "+r" (ret), "=&r" (tmp), "+Qo" (v->counter)
        : "r" (&v->counter), "r" (u), "r" (a)
        : "cc");
 
@@ -460,9 +459,6 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
 #define atomic64_dec_and_test(v)       (atomic64_dec_return((v)) == 0)
 #define atomic64_inc_not_zero(v)       atomic64_add_unless((v), 1LL, 0LL)
 
-#else /* !CONFIG_GENERIC_ATOMIC64 */
-#include <asm-generic/atomic64.h>
-#endif
-#include <asm-generic/atomic-long.h>
+#endif /* !CONFIG_GENERIC_ATOMIC64 */
 #endif
 #endif