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b345e140 |
| 18-Apr-2019 |
Max Filippov <jcmvbkbc@gmail.com> |
target/xtensa: implement exclusive access option
The Exclusive Instructions provide a general-purpose mechanism for
atomic updates of memory-based synchronization variables that can be
used for excl
target/xtensa: implement exclusive access option
The Exclusive Instructions provide a general-purpose mechanism for
atomic updates of memory-based synchronization variables that can be
used for exclusion algorithms.
Use cmpxchg-based implementation that is sufficient for the typical use
of exclusive access in atomic operations.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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