derek/gem5
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

arch-gcn3: Implement flat_load_sbyte instruction

Browse Source 
Change-Id: I3aa7547a393b9ecb4b3d4d107394c54d690a0ac2
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/37476
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
Reviewed-by: Matthew Poremba <matthew.poremba@amd.com>
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Kyle Roarty
2020-11-10 00:10:06 -06:00
parent c1ddd01b66
commit 5f6ebe752e
1 changed files with 45 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
src/arch/gcn3/insts/instructions.cc
View File

@@ -39497,17 +39497,61 @@ namespace Gcn3ISA
void
Inst_FLAT__FLAT_LOAD_SBYTE::execute(GPUDynInstPtr gpuDynInst)
{
panicUnimplemented();
Wavefront *wf = gpuDynInst->wavefront();
if (wf->execMask().none()) {
wf->decVMemInstsIssued();
wf->decLGKMInstsIssued();
wf->rdGmReqsInPipe--;
wf->rdLmReqsInPipe--;
gpuDynInst->exec_mask = wf->execMask();
wf->computeUnit->vrf[wf->simdId]->
scheduleWriteOperandsFromLoad(wf, gpuDynInst);
return;
}
gpuDynInst->execUnitId = wf->execUnitId;
gpuDynInst->exec_mask = gpuDynInst->wavefront()->execMask();
gpuDynInst->latency.init(gpuDynInst->computeUnit());
gpuDynInst->latency.set(gpuDynInst->computeUnit()->clockPeriod());
ConstVecOperandU64 addr(gpuDynInst, extData.ADDR);
addr.read();
calcAddr(gpuDynInst, addr);
if (gpuDynInst->executedAs() == Enums::SC_GLOBAL) {
gpuDynInst->computeUnit()->globalMemoryPipe
.issueRequest(gpuDynInst);
wf->rdGmReqsInPipe--;
wf->outstandingReqsRdGm++;
} else {
fatal("Non global flat instructions not implemented yet.\n");
}
gpuDynInst->wavefront()->outstandingReqs++;
gpuDynInst->wavefront()->validateRequestCounters();
}
void
Inst_FLAT__FLAT_LOAD_SBYTE::initiateAcc(GPUDynInstPtr gpuDynInst)
{
initMemRead<VecElemI8>(gpuDynInst);
} // initiateAcc
void
Inst_FLAT__FLAT_LOAD_SBYTE::completeAcc(GPUDynInstPtr gpuDynInst)
{
VecOperandI32 vdst(gpuDynInst, extData.VDST);
for (int lane = 0; lane < NumVecElemPerVecReg; ++lane) {
if (gpuDynInst->exec_mask[lane]) {
vdst[lane] = (VecElemI32)((reinterpret_cast<VecElemI8*>(
gpuDynInst->d_data))[lane]);
}
}
vdst.write();
}
Inst_FLAT__FLAT_LOAD_USHORT::Inst_FLAT__FLAT_LOAD_USHORT(InFmt_FLAT *iFmt)