diff options
| author | Emilio G. Cota <cota@braap.org> | 2016-06-27 15:01:54 -0400 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-10-26 08:28:57 -0700 |
| commit | 83d0c719f837724d9e3963b078211b2242bdd2a5 (patch) | |
| tree | 8795ff495831913532729a97d8dd9a5b46c0276c | |
| parent | 61696ddbdc74263ddb6869856772cfe355a5d3bd (diff) | |
atomics: add atomic_op_fetch variants
This paves the way for upcoming work.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1467054136-10430-9-git-send-email-cota@braap.org>
| -rw-r--r-- | include/qemu/atomic.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/qemu/atomic.h b/include/qemu/atomic.h index 3b72d935bb..a26a36bb49 100644 --- a/include/qemu/atomic.h +++ b/include/qemu/atomic.h @@ -175,6 +175,14 @@ #define atomic_fetch_or(ptr, n) __atomic_fetch_or(ptr, n, __ATOMIC_SEQ_CST) #define atomic_fetch_xor(ptr, n) __atomic_fetch_xor(ptr, n, __ATOMIC_SEQ_CST) +#define atomic_inc_fetch(ptr) __atomic_add_fetch(ptr, 1, __ATOMIC_SEQ_CST) +#define atomic_dec_fetch(ptr) __atomic_sub_fetch(ptr, 1, __ATOMIC_SEQ_CST) +#define atomic_add_fetch(ptr, n) __atomic_add_fetch(ptr, n, __ATOMIC_SEQ_CST) +#define atomic_sub_fetch(ptr, n) __atomic_sub_fetch(ptr, n, __ATOMIC_SEQ_CST) +#define atomic_and_fetch(ptr, n) __atomic_and_fetch(ptr, n, __ATOMIC_SEQ_CST) +#define atomic_or_fetch(ptr, n) __atomic_or_fetch(ptr, n, __ATOMIC_SEQ_CST) +#define atomic_xor_fetch(ptr, n) __atomic_xor_fetch(ptr, n, __ATOMIC_SEQ_CST) + /* And even shorter names that return void. */ #define atomic_inc(ptr) ((void) __atomic_fetch_add(ptr, 1, __ATOMIC_SEQ_CST)) #define atomic_dec(ptr) ((void) __atomic_fetch_sub(ptr, 1, __ATOMIC_SEQ_CST)) @@ -342,6 +350,15 @@ #define atomic_fetch_and(ptr, n) __sync_fetch_and_and(ptr, n) #define atomic_fetch_or(ptr, n) __sync_fetch_and_or(ptr, n) #define atomic_fetch_xor(ptr, n) __sync_fetch_and_xor(ptr, n) + +#define atomic_inc_fetch(ptr) __sync_add_and_fetch(ptr, 1) +#define atomic_dec_fetch(ptr) __sync_add_and_fetch(ptr, -1) +#define atomic_add_fetch(ptr, n) __sync_add_and_fetch(ptr, n) +#define atomic_sub_fetch(ptr, n) __sync_sub_and_fetch(ptr, n) +#define atomic_and_fetch(ptr, n) __sync_and_and_fetch(ptr, n) +#define atomic_or_fetch(ptr, n) __sync_or_and_fetch(ptr, n) +#define atomic_xor_fetch(ptr, n) __sync_xor_and_fetch(ptr, n) + #define atomic_cmpxchg(ptr, old, new) __sync_val_compare_and_swap(ptr, old, new) /* And even shorter names that return void. */ |