diff options
Diffstat (limited to 'src/mem/request.hh')
| -rw-r--r-- | src/mem/request.hh | 69 |
1 files changed, 60 insertions, 9 deletions
diff --git a/src/mem/request.hh b/src/mem/request.hh index bb5e5d59c..0d2750a16 100644 --- a/src/mem/request.hh +++ b/src/mem/request.hh @@ -160,6 +160,11 @@ class Request /** The request should be marked with RELEASE. */ RELEASE = 0x00040000, + /** The request is an atomic that returns data. */ + ATOMIC_RETURN_OP = 0x40000000, + /** The request is an atomic that does not return data. */ + ATOMIC_NO_RETURN_OP = 0x80000000, + /** The request should be marked with KERNEL. * Used to indicate the synchronization associated with a GPU kernel * launch or completion. @@ -345,6 +350,9 @@ class Request /** Sequence number of the instruction that creates the request */ InstSeqNum _reqInstSeqNum; + /** A pointer to an atomic operation */ + AtomicOpFunctor *atomicOpFunctor; + public: /** @@ -356,7 +364,8 @@ class Request : _paddr(0), _size(0), _masterId(invldMasterId), _time(0), _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0), _extraData(0), _contextId(0), _threadId(0), _pc(0), - _reqInstSeqNum(0), translateDelta(0), accessDelta(0), depth(0) + _reqInstSeqNum(0), atomicOpFunctor(nullptr), translateDelta(0), + accessDelta(0), depth(0) {} Request(Addr paddr, unsigned size, Flags flags, MasterID mid, @@ -364,7 +373,8 @@ class Request : _paddr(0), _size(0), _masterId(invldMasterId), _time(0), _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0), _extraData(0), _contextId(0), _threadId(0), _pc(0), - _reqInstSeqNum(seq_num), translateDelta(0), accessDelta(0), depth(0) + _reqInstSeqNum(seq_num), atomicOpFunctor(nullptr), translateDelta(0), + accessDelta(0), depth(0) { setPhys(paddr, size, flags, mid, curTick()); setThreadContext(cid, tid); @@ -380,7 +390,8 @@ class Request : _paddr(0), _size(0), _masterId(invldMasterId), _time(0), _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0), _extraData(0), _contextId(0), _threadId(0), _pc(0), - _reqInstSeqNum(0), translateDelta(0), accessDelta(0), depth(0) + _reqInstSeqNum(0), atomicOpFunctor(nullptr), translateDelta(0), + accessDelta(0), depth(0) { setPhys(paddr, size, flags, mid, curTick()); } @@ -389,7 +400,8 @@ class Request : _paddr(0), _size(0), _masterId(invldMasterId), _time(0), _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0), _extraData(0), _contextId(0), _threadId(0), _pc(0), - _reqInstSeqNum(0), translateDelta(0), accessDelta(0), depth(0) + _reqInstSeqNum(0), atomicOpFunctor(nullptr), translateDelta(0), + accessDelta(0), depth(0) { setPhys(paddr, size, flags, mid, time); } @@ -398,12 +410,12 @@ class Request Addr pc) : _paddr(0), _size(0), _masterId(invldMasterId), _time(0), _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0), - _extraData(0), _contextId(0), _threadId(0), _pc(0), - _reqInstSeqNum(0), translateDelta(0), accessDelta(0), depth(0) + _extraData(0), _contextId(0), _threadId(0), _pc(pc), + _reqInstSeqNum(0), atomicOpFunctor(nullptr), translateDelta(0), + accessDelta(0), depth(0) { setPhys(paddr, size, flags, mid, time); privateFlags.set(VALID_PC); - _pc = pc; } Request(int asid, Addr vaddr, unsigned size, Flags flags, MasterID mid, @@ -411,13 +423,27 @@ class Request : _paddr(0), _size(0), _masterId(invldMasterId), _time(0), _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0), _extraData(0), _contextId(0), _threadId(0), _pc(0), - _reqInstSeqNum(0), translateDelta(0), accessDelta(0), depth(0) + _reqInstSeqNum(0), atomicOpFunctor(nullptr), translateDelta(0), + accessDelta(0), depth(0) + { + setVirt(asid, vaddr, size, flags, mid, pc); + setThreadContext(cid, tid); + } + + Request(int asid, Addr vaddr, int size, Flags flags, MasterID mid, Addr pc, + int cid, ThreadID tid, AtomicOpFunctor *atomic_op) + : atomicOpFunctor(atomic_op) { setVirt(asid, vaddr, size, flags, mid, pc); setThreadContext(cid, tid); } - ~Request() {} + ~Request() + { + if (hasAtomicOpFunctor()) { + delete atomicOpFunctor; + } + } /** * Set up CPU and thread numbers. @@ -541,6 +567,22 @@ class Request return _time; } + /** + * Accessor for atomic-op functor. + */ + bool + hasAtomicOpFunctor() + { + return atomicOpFunctor != NULL; + } + + AtomicOpFunctor * + getAtomicOpFunctor() + { + assert(atomicOpFunctor != NULL); + return atomicOpFunctor; + } + /** Accessor for flags. */ Flags getFlags() @@ -749,6 +791,15 @@ class Request bool isAcquire() const { return _flags.isSet(ACQUIRE); } bool isRelease() const { return _flags.isSet(RELEASE); } bool isKernel() const { return _flags.isSet(KERNEL); } + bool isAtomicReturn() const { return _flags.isSet(ATOMIC_RETURN_OP); } + bool isAtomicNoReturn() const { return _flags.isSet(ATOMIC_NO_RETURN_OP); } + + bool + isAtomic() const + { + return _flags.isSet(ATOMIC_RETURN_OP) || + _flags.isSet(ATOMIC_NO_RETURN_OP); + } /** * Accessor functions for the memory space configuration flags and used by |