diff options
Diffstat (limited to 'src/cpu/inorder/pipeline_stage.cc')
| -rw-r--r-- | src/cpu/inorder/pipeline_stage.cc | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/src/cpu/inorder/pipeline_stage.cc b/src/cpu/inorder/pipeline_stage.cc index 610b6f264..15f143251 100644 --- a/src/cpu/inorder/pipeline_stage.cc +++ b/src/cpu/inorder/pipeline_stage.cc @@ -940,7 +940,9 @@ PipelineStage::processInstSchedule(DynInstPtr inst,int &reqs_processed) ResReqPtr req = cpu->resPool->request(res_num, inst); assert(req->valid); - if (req->isCompleted()) { + bool req_completed = req->isCompleted(); + bool done_in_pipeline = false; + if (req_completed) { DPRINTF(InOrderStage, "[tid:%i]: [sn:%i] request to %s " "completed.\n", tid, inst->seqNum, cpu->resPool->name(res_num)); @@ -949,11 +951,10 @@ PipelineStage::processInstSchedule(DynInstPtr inst,int &reqs_processed) req->stagePasses++; - bool done_in_pipeline = inst->finishSkedEntry(); + done_in_pipeline = inst->finishSkedEntry(); if (done_in_pipeline) { DPRINTF(InOrderDynInst, "[tid:%i]: [sn:%i] finished " "in pipeline.\n", tid, inst->seqNum); - break; } } else { DPRINTF(InOrderStage, "[tid:%i]: [sn:%i] request to %s failed." @@ -990,7 +991,18 @@ PipelineStage::processInstSchedule(DynInstPtr inst,int &reqs_processed) "thread due to cache miss.\n"); cpu->activateNextReadyContext(); } - + } + + // If this request is no longer needs to take up bandwidth in the + // resource, go ahead and free that bandwidth up + if (req->doneInResource) { + req->freeSlot(); + } + + // No longer need to process this instruction if the last + // request it had wasn't completed or if there is nothing + // else for it to do in the pipeline + if (done_in_pipeline || !req_completed) { break; } |