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[Qemu-devel] [RFC 07/30] atomics: add atomic_xor
From: |
Emilio G. Cota |
Subject: |
[Qemu-devel] [RFC 07/30] atomics: add atomic_xor |
Date: |
Mon, 27 Jun 2016 15:01:53 -0400 |
This paves the way for upcoming work.
Signed-off-by: Emilio G. Cota <address@hidden>
---
include/qemu/atomic.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/qemu/atomic.h b/include/qemu/atomic.h
index 7a59096..a5531da 100644
--- a/include/qemu/atomic.h
+++ b/include/qemu/atomic.h
@@ -161,6 +161,7 @@
#define atomic_fetch_sub(ptr, n) __atomic_fetch_sub(ptr, n, __ATOMIC_SEQ_CST)
#define atomic_fetch_and(ptr, n) __atomic_fetch_and(ptr, n, __ATOMIC_SEQ_CST)
#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)
/* And even shorter names that return void. */
#define atomic_inc(ptr) ((void) __atomic_fetch_add(ptr, 1,
__ATOMIC_SEQ_CST))
@@ -169,6 +170,7 @@
#define atomic_sub(ptr, n) ((void) __atomic_fetch_sub(ptr, n,
__ATOMIC_SEQ_CST))
#define atomic_and(ptr, n) ((void) __atomic_fetch_and(ptr, n,
__ATOMIC_SEQ_CST))
#define atomic_or(ptr, n) ((void) __atomic_fetch_or(ptr, n, __ATOMIC_SEQ_CST))
+#define atomic_xor(ptr, n) ((void) __atomic_fetch_xor(ptr, n,
__ATOMIC_SEQ_CST))
#else /* __ATOMIC_RELAXED */
@@ -355,6 +357,7 @@
#define atomic_fetch_sub __sync_fetch_and_sub
#define atomic_fetch_and __sync_fetch_and_and
#define atomic_fetch_or __sync_fetch_and_or
+#define atomic_fetch_xor __sync_fetch_and_xor
#define atomic_cmpxchg __sync_val_compare_and_swap
/* And even shorter names that return void. */
@@ -364,6 +367,7 @@
#define atomic_sub(ptr, n) ((void) __sync_fetch_and_sub(ptr, n))
#define atomic_and(ptr, n) ((void) __sync_fetch_and_and(ptr, n))
#define atomic_or(ptr, n) ((void) __sync_fetch_and_or(ptr, n))
+#define atomic_xor(ptr, n) ((void) __sync_fetch_and_xor(ptr, n))
#endif /* __ATOMIC_RELAXED */
#endif /* __QEMU_ATOMIC_H */
--
2.5.0
- Re: [Qemu-devel] [RFC 01/30] softmmu: add cmpxchg helpers, (continued)
[Qemu-devel] [RFC 03/30] cpu_ldst: add cpu_cmpxchg helpers, Emilio G. Cota, 2016/06/27
[Qemu-devel] [RFC 02/30] tcg: add tcg_cmpxchg_lock, Emilio G. Cota, 2016/06/27
[Qemu-devel] [RFC 12/30] target-i386: emulate LOCK'ed OP instructions using atomic helpers, Emilio G. Cota, 2016/06/27
[Qemu-devel] [RFC 09/30] softmmu: add atomic helpers, Emilio G. Cota, 2016/06/27
[Qemu-devel] [RFC 07/30] atomics: add atomic_xor,
Emilio G. Cota <=
[Qemu-devel] [RFC 08/30] atomics: add atomic_op_fetch variants, Emilio G. Cota, 2016/06/27
[Qemu-devel] [RFC 14/30] target-i386: emulate LOCK'ed NOT using atomic helper, Emilio G. Cota, 2016/06/27
[Qemu-devel] [RFC 10/30] cpu_ldst: add cpu_atomic helpers, Emilio G. Cota, 2016/06/27
[Qemu-devel] [RFC 11/30] target-i386: add atomic helpers, Emilio G. Cota, 2016/06/27
[Qemu-devel] [RFC 06/30] target-i386: emulate LOCK'ed cmpxchg8b/16b using cmpxchg helpers, Emilio G. Cota, 2016/06/27
[Qemu-devel] [RFC 05/30] target-i386: emulate LOCK'ed cmpxchg using cmpxchg helpers, Emilio G. Cota, 2016/06/27
[Qemu-devel] [RFC 13/30] target-i386: emulate LOCK'ed INC using atomic helper, Emilio G. Cota, 2016/06/27
[Qemu-devel] [RFC 15/30] target-i386: emulate LOCK'ed NEG using cmpxchg helper, Emilio G. Cota, 2016/06/27