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33 * Author: Sooraj Puthoor
36 #ifndef __LOCAL_MEMORY_PIPELINE_HH__
37 #define __LOCAL_MEMORY_PIPELINE_HH__
42 #include "gpu-compute/misc.hh"
43 #include "params/ComputeUnit.hh"
44 #include "sim/stats.hh"
47 * @file local_memory_pipeline.hh
49 * The local memory pipeline issues newly created local memory packets
50 * from pipeline to the LDS. This stage also retires previously issued
51 * loads and stores that have returned from the LDS.
57 class LocalMemPipeline
60 LocalMemPipeline(const ComputeUnitParams *params);
61 void init(ComputeUnit *cu);
64 std::queue<GPUDynInstPtr> &getLMReqFIFO() { return lmIssuedRequests; }
65 std::queue<GPUDynInstPtr> &getLMRespFIFO() { return lmReturnedRequests; }
68 isLMRespFIFOWrRdy() const
70 return lmReturnedRequests.size() < lmQueueSize;
74 isLMReqFIFOWrRdy(uint32_t pendReqs=0) const
76 return (lmIssuedRequests.size() + pendReqs) < lmQueueSize;
79 const std::string& name() const { return _name; }
83 incLoadVRFBankConflictCycles(int num_cycles)
85 loadVrfBankConflictCycles += num_cycles;
89 ComputeUnit *computeUnit;
92 Stats::Scalar loadVrfBankConflictCycles;
93 // Local Memory Request Fifo: all shared memory requests
94 // are issued to this FIFO from the memory pipelines
95 std::queue<GPUDynInstPtr> lmIssuedRequests;
97 // Local Memory Response Fifo: all responses of shared memory
98 // requests are sent to this FIFO from LDS
99 std::queue<GPUDynInstPtr> lmReturnedRequests;
102 #endif // __LOCAL_MEMORY_PIPELINE_HH__