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Allocate buffers in local memory for PVC multi root device platforms (1/n)

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PVC platform with no support for atomic operations on system memory
must always allocate buffers in local memory to avoid atomic access violation.
Note: the feature is being implemented under the new registry key
AllocateBuffersInLocalMemoryForMultiRootDeviceContexts (disabled by default)

Related-To: NEO-7092

Signed-off-by: Milczarek, Slawomir <slawomir.milczarek@intel.com>
This commit is contained in:
Milczarek, Slawomir
2022-10-24 23:25:04 +00:00
committed by Compute-Runtime-Automation
parent b0c97e49ea
commit 25a5ed0dca
15 changed files with 137 additions and 14 deletions
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3
opencl/source/command_queue/command_queue.cpp
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@@ -981,6 +981,9 @@ bool CommandQueue::queueDependenciesClearRequired() const {
bool CommandQueue::blitEnqueueAllowed(const CsrSelectionArgs &args) const {
bool blitEnqueueAllowed = getGpgpuCommandStreamReceiver().peekTimestampPacketWriteEnabled() || this->isCopyOnly;
if (this->getContext().getRootDeviceIndices().size() > 1) {
blitEnqueueAllowed &= !DebugManager.flags.AllocateBuffersInLocalMemoryForMultiRootDeviceContexts.get();
}
if (DebugManager.flags.EnableBlitterForEnqueueOperations.get() != -1) {
blitEnqueueAllowed = DebugManager.flags.EnableBlitterForEnqueueOperations.get();
}

2
opencl/source/mem_obj/buffer.cpp
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@@ -440,6 +440,8 @@ Buffer *Buffer::create(Context *context,
}
}
multiGraphicsAllocation.setMultiStorage(MemoryPropertiesHelper::useMultiStorageForCrossRootDeviceAccess(context->getRootDeviceIndices().size() > 1));
auto rootDeviceIndex = context->getDevice(0u)->getRootDeviceIndex();
auto &allocationInfo = allocationInfos[rootDeviceIndex];
auto memoryStorage = multiGraphicsAllocation.getDefaultGraphicsAllocation()->getUnderlyingBuffer();

7
opencl/source/memory_manager/migration_controller.cpp
View File

@@ -27,12 +27,17 @@ void MigrationController::handleMigration(Context &context, CommandStreamReceive
if (migrationSyncData->getCurrentLocation() != targetRootDeviceIndex) {
migrateMemory(context, *memoryManager, memObj, targetRootDeviceIndex);
}
migrationSyncData->signalUsage(targetCsr.getTagAddress(), targetCsr.peekTaskCount() + 1);
if (!context.getSpecialQueue(targetRootDeviceIndex)->isWaitForTimestampsEnabled()) {
migrationSyncData->signalUsage(targetCsr.getTagAddress(), targetCsr.peekTaskCount() + 1);
}
}
void MigrationController::migrateMemory(Context &context, MemoryManager &memoryManager, MemObj *memObj, uint32_t targetRootDeviceIndex) {
auto &multiGraphicsAllocation = memObj->getMultiGraphicsAllocation();
auto migrationSyncData = multiGraphicsAllocation.getMigrationSyncData();
if (migrationSyncData->isMigrationInProgress()) {
return;
}
auto sourceRootDeviceIndex = migrationSyncData->getCurrentLocation();
if (sourceRootDeviceIndex == std::numeric_limits<uint32_t>::max()) {