1 // SPDX-FileCopyrightText: 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
3 // SPDX-License-Identifier: MIT
12 #include <urcu/compiler.h>
13 #include <urcu/arch.h>
16 * Identify a shared load. A cmm_smp_rmc() or cmm_smp_mc() should come
19 #define _CMM_LOAD_SHARED(p) CMM_ACCESS_ONCE(p)
22 * Load a data from shared memory, doing a cache flush if required.
24 #define CMM_LOAD_SHARED(p) \
28 _CMM_LOAD_SHARED(p); \
32 * Identify a shared store. A cmm_smp_wmc() or cmm_smp_mc() should
35 #define _CMM_STORE_SHARED(x, v) __extension__ ({ CMM_ACCESS_ONCE(x) = (v); })
38 * Store v into x, where x is located in shared memory. Performs the
39 * required cache flush after writing. Returns v.
41 #define CMM_STORE_SHARED(x, v) \
44 __typeof__(x) _v = _CMM_STORE_SHARED(x, v); \
46 _v = _v; /* Work around clang "unused result" */ \
49 #endif /* _URCU_SYSTEM_H */
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