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/*
* Copyright (C) 2019-2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/helpers/string.h"
#include "shared/source/memory_manager/memory_manager.h"
#include "level_zero/core/source/device/device.h"
#include "level_zero/core/source/driver/driver_handle_imp.h"
namespace L0 {
ze_result_t DriverHandleImp::getIpcMemHandle(const void *ptr, ze_ipc_mem_handle_t *pIpcHandle) {
NEO::SvmAllocationData *allocData = svmAllocsManager->getSVMAlloc(ptr);
if (allocData) {
uint64_t handle = allocData->gpuAllocations.getDefaultGraphicsAllocation()->peekInternalHandle(this->getMemoryManager());
memcpy_s(reinterpret_cast<void *>(pIpcHandle->data),
sizeof(ze_ipc_mem_handle_t),
&handle,
sizeof(handle));
return ZE_RESULT_SUCCESS;
}
return ZE_RESULT_ERROR_INVALID_ARGUMENT;
}
ze_result_t DriverHandleImp::openIpcMemHandle(ze_device_handle_t hDevice, ze_ipc_mem_handle_t pIpcHandle,
ze_ipc_memory_flag_t flags, void **ptr) {
auto neoDevice = Device::fromHandle(hDevice)->getNEODevice();
uint64_t handle = *(pIpcHandle.data);
NEO::osHandle osHandle = static_cast<NEO::osHandle>(handle);
NEO::AllocationProperties unifiedMemoryProperties{neoDevice->getRootDeviceIndex(),
MemoryConstants::pageSize,
NEO::GraphicsAllocation::AllocationType::BUFFER, neoDevice->getDeviceBitfield()};
unifiedMemoryProperties.subDevicesBitfield = neoDevice->getDeviceBitfield();
NEO::GraphicsAllocation *alloc =
this->getMemoryManager()->createGraphicsAllocationFromSharedHandle(osHandle,
unifiedMemoryProperties,
false);
if (alloc == nullptr) {
return ZE_RESULT_ERROR_INVALID_ARGUMENT;
}
NEO::SvmAllocationData allocData(neoDevice->getRootDeviceIndex());
allocData.gpuAllocations.addAllocation(alloc);
allocData.cpuAllocation = nullptr;
allocData.size = alloc->getUnderlyingBufferSize();
allocData.memoryType = InternalMemoryType::DEVICE_UNIFIED_MEMORY;
allocData.device = neoDevice;
this->getSvmAllocsManager()->insertSVMAlloc(allocData);
*ptr = reinterpret_cast<void *>(alloc->getGpuAddress());
return ZE_RESULT_SUCCESS;
}
ze_result_t DriverHandleImp::closeIpcMemHandle(const void *ptr) {
return ZE_RESULT_SUCCESS;
}
ze_result_t DriverHandleImp::checkMemoryAccessFromDevice(Device *device, const void *ptr) {
auto allocation = svmAllocsManager->getSVMAlloc(ptr);
if (allocation == nullptr) {
return ZE_RESULT_ERROR_INVALID_ARGUMENT;
}
if (allocation->memoryType == InternalMemoryType::HOST_UNIFIED_MEMORY ||
allocation->memoryType == InternalMemoryType::SHARED_UNIFIED_MEMORY)
return ZE_RESULT_SUCCESS;
if (allocation->gpuAllocations.getGraphicsAllocation(device->getRootDeviceIndex()) != nullptr) {
return ZE_RESULT_SUCCESS;
}
return ZE_RESULT_ERROR_INVALID_ARGUMENT;
}
ze_result_t DriverHandleImp::getMemAddressRange(const void *ptr, void **pBase, size_t *pSize) {
NEO::SvmAllocationData *allocData = svmAllocsManager->getSVMAlloc(ptr);
if (allocData) {
NEO::GraphicsAllocation *alloc;
alloc = allocData->gpuAllocations.getDefaultGraphicsAllocation();
if (pBase) {
uint64_t *allocBase = reinterpret_cast<uint64_t *>(pBase);
*allocBase = alloc->getGpuAddress();
}
if (pSize) {
*pSize = alloc->getUnderlyingBufferSize();
}
return ZE_RESULT_SUCCESS;
}
DEBUG_BREAK_IF(true);
return ZE_RESULT_ERROR_UNKNOWN;
}
ze_result_t DriverHandleImp::allocHostMem(ze_host_mem_alloc_flags_t flags, size_t size, size_t alignment,
void **ptr) {
if (size > this->devices[0]->getDeviceInfo().maxMemAllocSize) {
*ptr = nullptr;
return ZE_RESULT_ERROR_UNSUPPORTED_SIZE;
}
NEO::SVMAllocsManager::UnifiedMemoryProperties unifiedMemoryProperties(InternalMemoryType::HOST_UNIFIED_MEMORY, this->devices[0]->getNEODevice()->getDeviceBitfield());
auto usmPtr = svmAllocsManager->createHostUnifiedMemoryAllocation(static_cast<uint32_t>(this->devices.size() - 1),
size,
unifiedMemoryProperties);
if (usmPtr == nullptr) {
return ZE_RESULT_ERROR_OUT_OF_HOST_MEMORY;
}
*ptr = usmPtr;
return ZE_RESULT_SUCCESS;
}
ze_result_t DriverHandleImp::allocDeviceMem(ze_device_handle_t hDevice, ze_device_mem_alloc_flags_t flags,
size_t size, size_t alignment, void **ptr) {
if (size > this->devices[0]->getNEODevice()->getHardwareCapabilities().maxMemAllocSize) {
*ptr = nullptr;
return ZE_RESULT_ERROR_UNSUPPORTED_SIZE;
}
NEO::SVMAllocsManager::UnifiedMemoryProperties unifiedMemoryProperties(InternalMemoryType::DEVICE_UNIFIED_MEMORY, Device::fromHandle(hDevice)->getNEODevice()->getDeviceBitfield());
unifiedMemoryProperties.allocationFlags.flags.shareable = 1u;
unifiedMemoryProperties.device = Device::fromHandle(hDevice)->getNEODevice();
void *usmPtr =
svmAllocsManager->createUnifiedMemoryAllocation(Device::fromHandle(hDevice)->getRootDeviceIndex(),
size, unifiedMemoryProperties);
if (usmPtr == nullptr) {
return ZE_RESULT_ERROR_OUT_OF_DEVICE_MEMORY;
}
*ptr = usmPtr;
return ZE_RESULT_SUCCESS;
}
ze_result_t DriverHandleImp::allocSharedMem(ze_device_handle_t hDevice, ze_device_mem_alloc_flags_t deviceFlags,
ze_host_mem_alloc_flags_t hostFlags, size_t size, size_t alignment,
void **ptr) {
ze_device_handle_t device;
void *unifiedMemoryPropertiesDevice = nullptr;
if (hDevice == nullptr) {
device = this->devices[0];
} else {
device = hDevice;
unifiedMemoryPropertiesDevice = Device::fromHandle(device)->getNEODevice();
}
NEO::SVMAllocsManager::UnifiedMemoryProperties unifiedMemoryProperties(InternalMemoryType::SHARED_UNIFIED_MEMORY, Device::fromHandle(device)->getNEODevice()->getDeviceBitfield());
unifiedMemoryProperties.device = unifiedMemoryPropertiesDevice;
if (size > this->devices[0]->getDeviceInfo().maxMemAllocSize) {
*ptr = nullptr;
return ZE_RESULT_ERROR_UNSUPPORTED_SIZE;
}
auto usmPtr =
svmAllocsManager->createSharedUnifiedMemoryAllocation(Device::fromHandle(device)->getRootDeviceIndex(),
size,
unifiedMemoryProperties,
static_cast<void *>(L0::Device::fromHandle(device)));
if (usmPtr == nullptr) {
return ZE_RESULT_ERROR_OUT_OF_DEVICE_MEMORY;
}
*ptr = usmPtr;
return ZE_RESULT_SUCCESS;
}
ze_result_t DriverHandleImp::freeMem(const void *ptr) {
auto allocation = svmAllocsManager->getSVMAlloc(ptr);
if (allocation == nullptr) {
return ZE_RESULT_ERROR_INVALID_ARGUMENT;
}
svmAllocsManager->freeSVMAlloc(const_cast<void *>(ptr));
if (svmAllocsManager->getSvmMapOperation(ptr)) {
svmAllocsManager->removeSvmMapOperation(ptr);
}
return ZE_RESULT_SUCCESS;
}
} // namespace L0
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