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/*
* Copyright (C) 2020-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/debug_settings/debug_settings_manager.h"
#include "shared/source/debugger/debugger_l0.h"
#include "shared/source/device/sub_device.h"
#include "shared/source/execution_environment/execution_environment.h"
#include "shared/source/execution_environment/root_device_environment.h"
#include "shared/source/helpers/basic_math.h"
#include "shared/source/helpers/compiler_product_helper.h"
#include "shared/source/helpers/gfx_core_helper.h"
#include "shared/source/kernel/debug_data.h"
#include "shared/source/os_interface/linux/drm_allocation.h"
#include "shared/source/os_interface/linux/drm_neo.h"
#include "shared/source/os_interface/os_interface.h"
namespace NEO {
bool DebuggerL0::initDebuggingInOs(NEO::OSInterface *osInterface) {
if (osInterface != nullptr) {
auto drm = osInterface->getDriverModel()->as<NEO::Drm>();
const bool vmBindAvailable = drm->isVmBindAvailable();
const bool perContextVms = drm->isPerContextVMRequired();
auto &hwInfo = *drm->getHardwareInfo();
bool allowDebug = false;
if (drm->getRootDeviceEnvironment().executionEnvironment.getDebuggingMode() == DebuggingMode::online) {
allowDebug = drm->getRootDeviceEnvironment().getHelper<CompilerProductHelper>().isHeaplessModeEnabled(hwInfo) ? true : perContextVms;
} else if (drm->getRootDeviceEnvironment().executionEnvironment.getDebuggingMode() == DebuggingMode::offline) {
allowDebug = true;
}
if (vmBindAvailable && allowDebug) {
drm->registerResourceClasses();
return true;
} else {
printDebugString(debugManager.flags.PrintDebugMessages.get(), stderr,
"Debugging not enabled. VmBind: %d, per-context VMs: %d\n", vmBindAvailable ? 1 : 0, perContextVms ? 1 : 0);
}
}
return false;
}
void DebuggerL0::initSbaTrackingMode() {
if (device->getExecutionEnvironment()->getDebuggingMode() == DebuggingMode::offline) {
singleAddressSpaceSbaTracking = true;
} else {
singleAddressSpaceSbaTracking = false;
}
}
void DebuggerL0::registerAllocationType(GraphicsAllocation *allocation) {}
void DebuggerL0::registerElfAndLinkWithAllocation(NEO::DebugData *debugData, NEO::GraphicsAllocation *isaAllocation) {
auto handle = registerElf(debugData);
if (handle != 0) {
static_cast<NEO::DrmAllocation *>(isaAllocation)->linkWithRegisteredHandle(handle);
}
}
uint32_t DebuggerL0::registerElf(NEO::DebugData *debugData) {
uint32_t handle = 0;
if (device->getRootDeviceEnvironment().osInterface.get() != nullptr) {
auto drm = device->getRootDeviceEnvironment().osInterface->getDriverModel()->as<NEO::Drm>();
handle = drm->registerResource(NEO::DrmResourceClass::elf, debugData->vIsa, debugData->vIsaSize);
}
return handle;
}
bool DebuggerL0::attachZebinModuleToSegmentAllocations(const StackVec<NEO::GraphicsAllocation *, 32> &allocs, uint32_t &moduleHandle, uint32_t elfHandle) {
if (device->getRootDeviceEnvironment().osInterface == nullptr) {
return false;
}
auto drm = device->getRootDeviceEnvironment().osInterface->getDriverModel()->as<NEO::Drm>();
uint32_t segmentCount = static_cast<uint32_t>(allocs.size());
moduleHandle = drm->registerResource(NEO::DrmResourceClass::l0ZebinModule, &segmentCount, sizeof(uint32_t));
for (auto &allocation : allocs) {
auto drmAllocation = static_cast<NEO::DrmAllocation *>(allocation);
DEBUG_BREAK_IF(allocation->getAllocationType() == AllocationType::kernelIsaInternal);
drmAllocation->linkWithRegisteredHandle(elfHandle);
drmAllocation->linkWithRegisteredHandle(moduleHandle);
}
return true;
}
bool DebuggerL0::removeZebinModule(uint32_t moduleHandle) {
if (device->getRootDeviceEnvironment().osInterface == nullptr || moduleHandle == 0) {
return false;
}
auto drm = device->getRootDeviceEnvironment().osInterface->getDriverModel()->as<NEO::Drm>();
drm->unregisterResource(moduleHandle);
return true;
}
void DebuggerL0::notifyModuleDestroy(uint64_t moduleLoadAddress) {}
void DebuggerL0::notifyCommandQueueCreated(NEO::Device *device) {
if (this->device->getRootDeviceEnvironment().osInterface.get() != nullptr) {
std::unique_lock<std::mutex> commandQueueCountLock(debuggerL0Mutex);
if (!device->isSubDevice() && device->getDeviceBitfield().count() > 1) {
UNRECOVERABLE_IF(this->device->getNumSubDevices() != device->getDeviceBitfield().count());
for (size_t i = 0; i < device->getDeviceBitfield().size(); i++) {
if (device->getDeviceBitfield().test(i)) {
if (++commandQueueCount[i] == 1) {
auto drm = this->device->getRootDeviceEnvironment().osInterface->getDriverModel()->as<NEO::Drm>();
CommandQueueNotification notification = {static_cast<uint32_t>(i), this->device->getNumSubDevices()};
uuidL0CommandQueueHandle[i] = drm->notifyFirstCommandQueueCreated(¬ification, sizeof(CommandQueueNotification));
}
}
}
return;
}
auto index = 0u;
auto deviceIndex = 0u;
if (device->isSubDevice()) {
index = static_cast<NEO::SubDevice *>(device)->getSubDeviceIndex();
deviceIndex = index;
} else if (device->getDeviceBitfield().count() == 1) {
deviceIndex = Math::log2(static_cast<uint32_t>(device->getDeviceBitfield().to_ulong()));
}
if (++commandQueueCount[index] == 1) {
auto drm = this->device->getRootDeviceEnvironment().osInterface->getDriverModel()->as<NEO::Drm>();
CommandQueueNotification notification = {deviceIndex, this->device->getNumSubDevices()};
uuidL0CommandQueueHandle[index] = drm->notifyFirstCommandQueueCreated(¬ification, sizeof(CommandQueueNotification));
}
}
}
void DebuggerL0::notifyCommandQueueDestroyed(NEO::Device *device) {
if (this->device->getRootDeviceEnvironment().osInterface.get() != nullptr) {
std::unique_lock<std::mutex> commandQueueCountLock(debuggerL0Mutex);
if (!device->isSubDevice() && device->getDeviceBitfield().count() > 1) {
UNRECOVERABLE_IF(this->device->getNumSubDevices() != device->getDeviceBitfield().count());
for (size_t i = 0; i < device->getDeviceBitfield().size(); i++) {
if (device->getDeviceBitfield().test(i)) {
if (--commandQueueCount[i] == 0) {
auto drm = this->device->getRootDeviceEnvironment().osInterface->getDriverModel()->as<NEO::Drm>();
drm->notifyLastCommandQueueDestroyed(uuidL0CommandQueueHandle[i]);
uuidL0CommandQueueHandle[i] = 0;
}
}
}
return;
}
auto index = device->isSubDevice() ? static_cast<NEO::SubDevice *>(device)->getSubDeviceIndex() : 0;
if (--commandQueueCount[index] == 0) {
auto drm = this->device->getRootDeviceEnvironment().osInterface->getDriverModel()->as<NEO::Drm>();
drm->notifyLastCommandQueueDestroyed(uuidL0CommandQueueHandle[index]);
uuidL0CommandQueueHandle[index] = 0;
}
}
}
void DebuggerL0::notifyModuleCreate(void *module, uint32_t moduleSize, uint64_t moduleLoadAddress) {}
} // namespace NEO
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