diff options
Diffstat (limited to 'arch/ia64')
-rw-r--r-- | arch/ia64/include/asm/atomic.h | 7 | ||||
-rw-r--r-- | arch/ia64/include/asm/barrier.h | 3 | ||||
-rw-r--r-- | arch/ia64/include/asm/bitops.h | 6 |
3 files changed, 6 insertions, 10 deletions
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h index 6e6fe1839f5d..0f8bf48dadf3 100644 --- a/arch/ia64/include/asm/atomic.h +++ b/arch/ia64/include/asm/atomic.h | |||
@@ -15,6 +15,7 @@ | |||
15 | #include <linux/types.h> | 15 | #include <linux/types.h> |
16 | 16 | ||
17 | #include <asm/intrinsics.h> | 17 | #include <asm/intrinsics.h> |
18 | #include <asm/barrier.h> | ||
18 | 19 | ||
19 | 20 | ||
20 | #define ATOMIC_INIT(i) { (i) } | 21 | #define ATOMIC_INIT(i) { (i) } |
@@ -208,10 +209,4 @@ atomic64_add_negative (__s64 i, atomic64_t *v) | |||
208 | #define atomic64_inc(v) atomic64_add(1, (v)) | 209 | #define atomic64_inc(v) atomic64_add(1, (v)) |
209 | #define atomic64_dec(v) atomic64_sub(1, (v)) | 210 | #define atomic64_dec(v) atomic64_sub(1, (v)) |
210 | 211 | ||
211 | /* Atomic operations are already serializing */ | ||
212 | #define smp_mb__before_atomic_dec() barrier() | ||
213 | #define smp_mb__after_atomic_dec() barrier() | ||
214 | #define smp_mb__before_atomic_inc() barrier() | ||
215 | #define smp_mb__after_atomic_inc() barrier() | ||
216 | |||
217 | #endif /* _ASM_IA64_ATOMIC_H */ | 212 | #endif /* _ASM_IA64_ATOMIC_H */ |
diff --git a/arch/ia64/include/asm/barrier.h b/arch/ia64/include/asm/barrier.h index d0a69aa35e27..a48957c7b445 100644 --- a/arch/ia64/include/asm/barrier.h +++ b/arch/ia64/include/asm/barrier.h | |||
@@ -55,6 +55,9 @@ | |||
55 | 55 | ||
56 | #endif | 56 | #endif |
57 | 57 | ||
58 | #define smp_mb__before_atomic() barrier() | ||
59 | #define smp_mb__after_atomic() barrier() | ||
60 | |||
58 | /* | 61 | /* |
59 | * IA64 GCC turns volatile stores into st.rel and volatile loads into ld.acq no | 62 | * IA64 GCC turns volatile stores into st.rel and volatile loads into ld.acq no |
60 | * need for asm trickery! | 63 | * need for asm trickery! |
diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h index feb8117ed06a..71e8145243ee 100644 --- a/arch/ia64/include/asm/bitops.h +++ b/arch/ia64/include/asm/bitops.h | |||
@@ -16,6 +16,7 @@ | |||
16 | #include <linux/compiler.h> | 16 | #include <linux/compiler.h> |
17 | #include <linux/types.h> | 17 | #include <linux/types.h> |
18 | #include <asm/intrinsics.h> | 18 | #include <asm/intrinsics.h> |
19 | #include <asm/barrier.h> | ||
19 | 20 | ||
20 | /** | 21 | /** |
21 | * set_bit - Atomically set a bit in memory | 22 | * set_bit - Atomically set a bit in memory |
@@ -65,9 +66,6 @@ __set_bit (int nr, volatile void *addr) | |||
65 | *((__u32 *) addr + (nr >> 5)) |= (1 << (nr & 31)); | 66 | *((__u32 *) addr + (nr >> 5)) |= (1 << (nr & 31)); |
66 | } | 67 | } |
67 | 68 | ||
68 | #define smp_mb__before_clear_bit() barrier(); | ||
69 | #define smp_mb__after_clear_bit() barrier(); | ||
70 | |||
71 | /** | 69 | /** |
72 | * clear_bit - Clears a bit in memory | 70 | * clear_bit - Clears a bit in memory |
73 | * @nr: Bit to clear | 71 | * @nr: Bit to clear |
@@ -75,7 +73,7 @@ __set_bit (int nr, volatile void *addr) | |||
75 | * | 73 | * |
76 | * clear_bit() is atomic and may not be reordered. However, it does | 74 | * clear_bit() is atomic and may not be reordered. However, it does |
77 | * not contain a memory barrier, so if it is used for locking purposes, | 75 | * not contain a memory barrier, so if it is used for locking purposes, |
78 | * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit() | 76 | * you should call smp_mb__before_atomic() and/or smp_mb__after_atomic() |
79 | * in order to ensure changes are visible on other processors. | 77 | * in order to ensure changes are visible on other processors. |
80 | */ | 78 | */ |
81 | static __inline__ void | 79 | static __inline__ void |