for (int i = 0; i < num_queues; i++) {
      QueueDesc *mqd = new QueueDesc();

VISHNU RAMADAS has uploaded this change for review. ( https://gem5-review.googlesource.com/c/public/gem5/+/69298?usp=email ) Change subject: dev-amdgpu: Added PM4MapQueues to GPUFS checkpoint ...................................................................... dev-amdgpu: Added PM4MapQueues to GPUFS checkpoint The GPUFS checkpoint restoration mechanism expects to find a PM4MapQueues packet in the checkpoint. Since this was not being checkpointed, the restore phase retrieved a null packet which led to a segmentation fault. This commit adds PM4MapQueues to the checkpoint and restores it when deserializing the checkpoint Change-Id: Ib74a9f36fe89d740a74f94314ada41ecc363abe9 --- M src/dev/amdgpu/pm4_packet_processor.cc M src/dev/amdgpu/pm4_queues.hh 2 files changed, 38 insertions(+), 2 deletions(-) diff --git a/src/dev/amdgpu/pm4_packet_processor.cc b/src/dev/amdgpu/pm4_packet_processor.cc index 152fd4d..52191da 100644 --- a/src/dev/amdgpu/pm4_packet_processor.cc +++ b/src/dev/amdgpu/pm4_packet_processor.cc @@ -1021,6 +1021,10 @@ Addr offset[num_queues]; bool processing[num_queues]; bool ib[num_queues]; + uint32_t me[num_queues]; + uint32_t pipe[num_queues]; + uint32_t queue[num_queues]; + bool privileged[num_queues]; int i = 0; for (auto iter : queues) { @@ -1040,6 +1044,11 @@ offset[i] = q->offset(); processing[i] = q->processing(); ib[i] = q->ib(); +// memcpy(&pkt[num_queues], q->getPkt(), sizeof(PM4MapQueues)); + me[i] = q->me(); + pipe[i] = q->pipe(); + queue[i] = q->queue(); + privileged[i] = q->privileged(); i++; } @@ -1055,6 +1064,10 @@ SERIALIZE_ARRAY(offset, num_queues); SERIALIZE_ARRAY(processing, num_queues); SERIALIZE_ARRAY(ib, num_queues); + SERIALIZE_ARRAY(me, num_queues); + SERIALIZE_ARRAY(pipe, num_queues); + SERIALIZE_ARRAY(queue, num_queues); + SERIALIZE_ARRAY(privileged, num_queues); } void @@ -1077,6 +1090,11 @@ Addr offset[num_queues]; bool processing[num_queues]; bool ib[num_queues]; +// PM4MapQueues pkt[num_queues]; + uint32_t me[num_queues]; + uint32_t pipe[num_queues]; + uint32_t queue[num_queues]; + bool privileged[num_queues]; UNSERIALIZE_ARRAY(id, num_queues); UNSERIALIZE_ARRAY(mqd_base, num_queues); @@ -1089,6 +1107,12 @@ UNSERIALIZE_ARRAY(offset, num_queues); UNSERIALIZE_ARRAY(processing, num_queues); UNSERIALIZE_ARRAY(ib, num_queues); + UNSERIALIZE_ARRAY(me, num_queues); + UNSERIALIZE_ARRAY(pipe, num_queues); + UNSERIALIZE_ARRAY(queue, num_queues); + UNSERIALIZE_ARRAY(privileged, num_queues); + +// UNSERIALIZE_ARRAY(pkt, num_queues); for (int i = 0; i < num_queues; i++) { QueueDesc *mqd = new QueueDesc(); @@ -1100,7 +1124,9 @@ mqd->ibBase = ib_base[i]; mqd->ibRptr = ib_rptr[i]; - newQueue(mqd, offset[i], nullptr, id[i]); + PM4MapQueues* pkt = new PM4MapQueues; + memset(pkt, 0, sizeof(PM4MapQueues)); + newQueue(mqd, offset[i], pkt, id[i]); queues[id[i]]->ib(false); queues[id[i]]->wptr(wptr[i]); @@ -1109,6 +1135,9 @@ queues[id[i]]->offset(offset[i]); queues[id[i]]->processing(processing[i]); queues[id[i]]->ib(ib[i]); + queues[id[i]]->setPkt(me[i], pipe[i], queue[i], privileged[i]); + +// queues[id[i]]->setPkt(pkt[i]); DPRINTF(PM4PacketProcessor, "PM4 queue %d, rptr: %p wptr: %p\n", queues[id[i]]->id(), queues[id[i]]->rptr(), queues[id[i]]->wptr()); diff --git a/src/dev/amdgpu/pm4_queues.hh b/src/dev/amdgpu/pm4_queues.hh index ddadd65..9c99e10 100644 --- a/src/dev/amdgpu/pm4_queues.hh +++ b/src/dev/amdgpu/pm4_queues.hh @@ -391,7 +391,7 @@ Addr _offset; bool _processing; bool _ib; - const PM4MapQueues _pkt; + PM4MapQueues _pkt; public: PM4Queue() : _id(0), q(nullptr), _wptr(0), _offset(0), _processing(false), _ib(false), _pkt() {} @@ -486,6 +486,13 @@ uint32_t pipe() { return _pkt.pipe; } uint32_t queue() { return _pkt.queueSlot; } bool privileged() { return _pkt.queueSel == 0 ? 1 : 0; } + PM4MapQueues* getPkt() { return &_pkt; } + void setPkt(uint32_t me, uint32_t pipe, uint32_t queue, bool privileged) { + _pkt.me = me - 1; + _pkt.pipe = pipe; + _pkt.queueSlot = queue; + _pkt.queueSel = (privileged == 0) ? 1 : 0; + } // Same computation as processMQD. See comment there for details. uint64_t size() { return 4UL << ((q->hqd_pq_control & 0x3f) + 1); } -- To view, visit https://gem5-review.googlesource.com/c/public/gem5/+/69298?usp=email To unsubscribe, or for help writing mail filters, visit https://gem5-review.googlesource.com/settings Gerrit-Project: public/gem5 Gerrit-Branch: develop Gerrit-Change-Id: Ib74a9f36fe89d740a74f94314ada41ecc363abe9 Gerrit-Change-Number: 69298 Gerrit-PatchSet: 1 Gerrit-Owner: VISHNU RAMADAS <vramadas@wisc.edu> Gerrit-MessageType: newchange