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Add support for zero-copy r/w buffer

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Change-Id: Ie9f3f2211d107eb338bd97692d36e9c7d7a0feab
This commit is contained in:
mplewka
2018-01-11 15:42:55 +01:00
parent 79e4b2c104
commit 2c2bbbcdbb
13 changed files with 694 additions and 17 deletions
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43
runtime/command_queue/enqueue_write_buffer.h
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@@ -45,11 +45,31 @@ cl_int CommandQueueHw<GfxFamily>::enqueueWriteBuffer(
cl_event *event) {
cl_int retVal = CL_SUCCESS;
auto isMemTransferNeeded = buffer->checkIfMemoryTransferIsRequired(offset, ptr, CL_COMMAND_WRITE_BUFFER);
if ((DebugManager.flags.DoCpuCopyOnWriteBuffer.get() ||
buffer->isReadWriteOnCpuAllowed(blockingWrite, numEventsInWaitList, const_cast<void *>(ptr), size)) &&
context->getDevice(0)->getDeviceInfo().cpuCopyAllowed) {
if (!isMemTransferNeeded) {
cpuDataTransferHandler(buffer,
CL_COMMAND_MARKER,
CL_TRUE,
offset,
size,
const_cast<void *>(ptr),
numEventsInWaitList,
eventWaitList,
event,
retVal);
if (event) {
auto pEvent = castToObjectOrAbort<Event>(*event);
pEvent->setCmdType(CL_COMMAND_WRITE_BUFFER);
}
if (context->isProvidingPerformanceHints()) {
context->providePerformanceHint(CL_CONTEXT_DIAGNOSTICS_LEVEL_GOOD_INTEL, CL_ENQUEUE_WRITE_BUFFER_DOESNT_REQUIRE_COPY_DATA, static_cast<cl_mem>(buffer), ptr);
}
return retVal;
}
cpuDataTransferHandler(buffer,
CL_COMMAND_WRITE_BUFFER,
CL_TRUE,
@@ -62,9 +82,28 @@ cl_int CommandQueueHw<GfxFamily>::enqueueWriteBuffer(
retVal);
return retVal;
}
MultiDispatchInfo dispatchInfo;
if (!isMemTransferNeeded) {
NullSurface s;
Surface *surfaces[] = {&s};
enqueueHandler<CL_COMMAND_MARKER>(
surfaces,
blockingWrite == CL_TRUE,
dispatchInfo,
numEventsInWaitList,
eventWaitList,
event);
if (event) {
auto pEvent = castToObjectOrAbort<Event>(*event);
pEvent->setCmdType(CL_COMMAND_WRITE_BUFFER);
}
if (context->isProvidingPerformanceHints()) {
context->providePerformanceHint(CL_CONTEXT_DIAGNOSTICS_LEVEL_GOOD_INTEL, CL_ENQUEUE_WRITE_BUFFER_DOESNT_REQUIRE_COPY_DATA, static_cast<cl_mem>(buffer), ptr);
}
return CL_SUCCESS;
}
auto &builder = BuiltIns::getInstance().getBuiltinDispatchInfoBuilder(EBuiltInOps::CopyBufferToBuffer,
this->getContext(), this->getDevice());