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mem: add request types for acquire and release

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Add support for acquire and release requests.  These synchronization operations
are commonly supported by several modern instruction sets.
This commit is contained in:
David Hashe 2015-07-20 09:15:18 -05:00
parent 4935f0d5ff
commit f5f04c3120
1 changed files with 6 additions and 0 deletions
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6
src/mem/request.hh
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@ -155,6 +155,10 @@ class Request
PF_EXCLUSIVE = 0x02000000,
/** The request should be marked as LRU. */
EVICT_NEXT = 0x04000000,
/** The request should be marked with ACQUIRE. */
ACQUIRE = 0x00020000,
/** The request should be marked with RELEASE. */
RELEASE = 0x00040000,
/**
* The request should be handled by the generic IPR code (only
@ -696,6 +700,8 @@ class Request
bool isMmappedIpr() const { return _flags.isSet(MMAPPED_IPR); }
bool isSecure() const { return _flags.isSet(SECURE); }
bool isPTWalk() const { return _flags.isSet(PT_WALK); }
bool isAcquire() const { return _flags.isSet(ACQUIRE); }
bool isRelease() const { return _flags.isSet(RELEASE); }
};
#endif // __MEM_REQUEST_HH__