Changeset 58775d30 in mainline for kernel/generic/include/atomic.h

Timestamp:

2015-03-16T16:07:21Z (9 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

2003739

Parents:

6069061 (diff), 795e2bf (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Mainline changes

File:

• kernel/generic/include/atomic.h (modified) (1 diff)

kernel/generic/include/atomic.h

@@ -53 +53 @@
 }
 
+
+/*
+ * If the architecture does not provide operations that are atomic
+ * only with respect to the local cpu (eg exception handlers) and
+ * not other cpus, implement these cpu local atomic operations with
+ * full blown smp-safe atomics.
+ */
+#ifndef local_atomic_exchange
+#define local_atomic_exchange(var_addr, new_val) \
+        __atomic_exchange_n((var_addr), (new_val), __ATOMIC_RELAXED)
+#endif
+
+
+
 #endif