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compute-runtime/level_zero/tools/source/debug/linux/prelim/debug_session.cpp

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/*
* Copyright (C) 2022-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "level_zero/tools/source/debug/linux/prelim/debug_session.h"
#include "shared/source/built_ins/sip.h"
#include "shared/source/debug_settings/debug_settings_manager.h"
#include "shared/source/gmm_helper/gmm_helper.h"
#include "shared/source/helpers/aligned_memory.h"
#include "shared/source/helpers/array_count.h"
#include "shared/source/helpers/hw_info.h"
#include "shared/source/helpers/sleep.h"
#include "shared/source/helpers/string.h"
#include "shared/source/memory_manager/memory_manager.h"
#include "shared/source/os_interface/linux/drm_debug.h"
#include "shared/source/os_interface/linux/ioctl_helper.h"
#include "shared/source/os_interface/os_interface.h"
#include "shared/source/os_interface/os_thread.h"
#include "level_zero/core/source/device/device.h"
#include "level_zero/core/source/device/device_imp.h"
#include "level_zero/core/source/gfx_core_helpers/l0_gfx_core_helper.h"
#include "level_zero/tools/source/debug/linux/debug_session_factory.h"
#include "level_zero/tools/source/debug/linux/drm_helper.h"
#include "level_zero/zet_intel_gpu_debug.h"
#include <level_zero/ze_api.h>
#include "common/StateSaveAreaHeader.h"
#include <algorithm>
#include <fcntl.h>
namespace L0 {
static DebugSessionLinuxPopulateFactory<DEBUG_SESSION_LINUX_TYPE_I915, DebugSessionLinuxi915>
populatei915Debugger;
DebugSession *createDebugSessionHelper(const zet_debug_config_t &config, Device *device, int debugFd, void *params);
DebugSessionLinuxi915::DebugSessionLinuxi915(const zet_debug_config_t &config, Device *device, int debugFd, void *params) : DebugSessionLinux(config, device, debugFd) {
ioctlHandler.reset(new IoctlHandleri915);
if (params) {
this->i915DebuggerVersion = reinterpret_cast<prelim_drm_i915_debugger_open_param *>(params)->version;
}
if (this->i915DebuggerVersion >= 3) {
this->blockOnFenceMode = true;
}
for (size_t i = 0; i < arrayCount(euControlInterruptSeqno); i++) {
euControlInterruptSeqno[i] = invalidHandle;
}
};
DebugSessionLinuxi915::~DebugSessionLinuxi915() {
closeAsyncThread();
closeInternalEventsThread();
for (auto &session : tileSessions) {
delete session.first;
}
tileSessions.resize(0);
closeFd();
}
DebugSession *DebugSessionLinuxi915::createLinuxSession(const zet_debug_config_t &config, Device *device, ze_result_t &result, bool isRootAttach) {
struct prelim_drm_i915_debugger_open_param open = {};
open.pid = config.pid;
open.events = 0;
open.version = 0;
auto debugFd = DrmHelper::ioctl(device, NEO::DrmIoctl::debuggerOpen, &open);
if (debugFd >= 0) {
PRINT_DEBUGGER_INFO_LOG("PRELIM_DRM_IOCTL_I915_DEBUGGER_OPEN: open.pid: %d, open.events: %d, debugFd: %d\n",
open.pid, open.events, debugFd);
return createDebugSessionHelper(config, device, debugFd, &open);
} else {
auto reason = DrmHelper::getErrno(device);
PRINT_DEBUGGER_ERROR_LOG("PRELIM_DRM_IOCTL_I915_DEBUGGER_OPEN failed: open.pid: %d, open.events: %d, retCode: %d, errno: %d\n",
open.pid, open.events, debugFd, reason);
result = translateDebuggerOpenErrno(reason);
}
return nullptr;
}
int DebugSessionLinuxi915::ioctl(unsigned long request, void *arg) {
return ioctlHandler->ioctl(fd, request, arg);
}
int DebugSessionLinuxi915::openVmFd(uint64_t vmHandle, bool readOnly) {
uint64_t flags = static_cast<decltype(prelim_drm_i915_debug_vm_open::flags)>(readOnly ? PRELIM_I915_DEBUG_VM_OPEN_READ_ONLY : PRELIM_I915_DEBUG_VM_OPEN_READ_WRITE);
prelim_drm_i915_debug_vm_open vmOpen = {
.client_handle = static_cast<decltype(prelim_drm_i915_debug_vm_open::client_handle)>(clientHandle),
.handle = static_cast<decltype(prelim_drm_i915_debug_vm_open::handle)>(vmHandle),
.flags = flags};
return ioctl(PRELIM_I915_DEBUG_IOCTL_VM_OPEN, &vmOpen);
}
DebugSessionImp *DebugSessionLinuxi915::createTileSession(const zet_debug_config_t &config, Device *device, DebugSessionImp *rootDebugSession) {
auto tileSession = new TileDebugSessionLinuxi915(config, device, rootDebugSession);
tileSession->initialize();
return tileSession;
}
void *DebugSessionLinuxi915::asyncThreadFunction(void *arg) {
DebugSessionLinuxi915 *self = reinterpret_cast<DebugSessionLinuxi915 *>(arg);
PRINT_DEBUGGER_INFO_LOG("Debugger async thread start\n", "");
while (self->asyncThread.threadActive) {
self->handleEventsAsync();
if (self->tileSessionsEnabled) {
for (size_t tileIndex = 0; tileIndex < self->tileSessions.size(); tileIndex++) {
static_cast<TileDebugSessionLinuxi915 *>(self->tileSessions[tileIndex].first)->generateEventsAndResumeStoppedThreads();
static_cast<TileDebugSessionLinuxi915 *>(self->tileSessions[tileIndex].first)->sendInterrupts();
}
} else {
self->generateEventsAndResumeStoppedThreads();
self->sendInterrupts();
}
}
PRINT_DEBUGGER_INFO_LOG("Debugger async thread closing\n", "");
return nullptr;
}
void DebugSessionLinuxi915::startAsyncThread() {
asyncThread.thread = NEO::Thread::createFunc(asyncThreadFunction, reinterpret_cast<void *>(this));
}
bool DebugSessionLinuxi915::handleInternalEvent() {
auto eventMemory = getInternalEvent();
if (eventMemory == nullptr) {
return false;
}
auto debugEvent = reinterpret_cast<prelim_drm_i915_debug_event *>(eventMemory.get());
handleEvent(debugEvent);
if (debugEvent->type != PRELIM_DRM_I915_DEBUG_EVENT_VM_BIND && pendingVmBindEvents.size() > 0) {
processPendingVmBindEvents();
}
return true;
}
void DebugSessionLinuxi915::readInternalEventsAsync() {
struct pollfd pollFd = {
.fd = fd,
.events = POLLIN,
.revents = 0,
};
int pollTimeout = 1000;
auto numberOfFds = ioctlHandler->poll(&pollFd, 1, pollTimeout);
PRINT_DEBUGGER_INFO_LOG("Debugger async thread readEvent poll() retCode: %d\n", numberOfFds);
if (!detached && numberOfFds < 0 && errno == EINVAL) {
zet_debug_event_t debugEvent = {};
debugEvent.type = ZET_DEBUG_EVENT_TYPE_DETACHED;
debugEvent.info.detached.reason = ZET_DEBUG_DETACH_REASON_INVALID;
PRINT_DEBUGGER_INFO_LOG("Debugger detached\n", "");
if (tileSessionsEnabled) {
auto numTiles = connectedDevice->getNEODevice()->getNumSubDevices();
for (uint32_t tileIndex = 0; tileIndex < numTiles; tileIndex++) {
static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->pushApiEvent(debugEvent);
static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->detached = true;
}
} else {
pushApiEvent(debugEvent);
}
detached = true;
} else if (numberOfFds > 0) {
ze_result_t result = ZE_RESULT_SUCCESS;
int maxLoopCount = 3;
do {
uint8_t maxEventBuffer[sizeof(prelim_drm_i915_debug_event) + maxEventSize];
auto event = reinterpret_cast<prelim_drm_i915_debug_event *>(maxEventBuffer);
event->size = maxEventSize;
event->type = PRELIM_DRM_I915_DEBUG_EVENT_READ;
event->flags = 0;
result = readEventImp(event);
maxLoopCount--;
if (result == ZE_RESULT_SUCCESS) {
std::lock_guard<std::mutex> lock(internalEventThreadMutex);
auto memory = std::make_unique<uint64_t[]>(maxEventSize / sizeof(uint64_t));
memcpy(memory.get(), event, maxEventSize);
internalEventQueue.push(std::move(memory));
internalEventCondition.notify_one();
}
} while (result == ZE_RESULT_SUCCESS && maxLoopCount > 0);
}
}
void DebugSessionLinuxi915::handleEvent(prelim_drm_i915_debug_event *event) {
auto type = event->type;
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_READ_EVENT type = %lu flags = %d seqno = %llu size = %llu",
(uint32_t)event->type, (int)event->flags, (uint64_t)event->seqno, (uint64_t)event->size);
switch (type) {
case PRELIM_DRM_I915_DEBUG_EVENT_CLIENT: {
auto clientEvent = reinterpret_cast<prelim_drm_i915_debug_event_client *>(event);
if (event->flags & PRELIM_DRM_I915_DEBUG_EVENT_CREATE) {
DEBUG_BREAK_IF(clientHandleToConnection.find(clientEvent->handle) != clientHandleToConnection.end());
clientHandleToConnection[clientEvent->handle].reset(new ClientConnectioni915);
clientHandleToConnection[clientEvent->handle]->client = *clientEvent;
}
if (event->flags & PRELIM_DRM_I915_DEBUG_EVENT_DESTROY) {
clientHandleClosed = clientEvent->handle;
}
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_READ_EVENT type: PRELIM_DRM_I915_DEBUG_EVENT_CLIENT flags = %d size = %llu client.handle = %llu\n",
(int)event->flags, (uint64_t)event->size, (uint64_t)clientEvent->handle);
} break;
case PRELIM_DRM_I915_DEBUG_EVENT_CONTEXT: {
prelim_drm_i915_debug_event_context *context = reinterpret_cast<prelim_drm_i915_debug_event_context *>(event);
if (event->flags & PRELIM_DRM_I915_DEBUG_EVENT_CREATE) {
UNRECOVERABLE_IF(clientHandleToConnection.find(context->client_handle) == clientHandleToConnection.end());
clientHandleToConnection[context->client_handle]->contextsCreated[context->handle].handle = context->handle;
}
if (event->flags & PRELIM_DRM_I915_DEBUG_EVENT_DESTROY) {
clientHandleToConnection[context->client_handle]->contextsCreated.erase(context->handle);
}
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_READ_EVENT type: PRELIM_DRM_I915_DEBUG_EVENT_CONTEXT flags = %d size = %llu client_handle = %llu handle = %llu\n",
(int)event->flags, (uint64_t)event->size, (uint64_t)context->client_handle, (uint64_t)context->handle);
} break;
case PRELIM_DRM_I915_DEBUG_EVENT_UUID: {
prelim_drm_i915_debug_event_uuid *uuid = reinterpret_cast<prelim_drm_i915_debug_event_uuid *>(event);
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_READ_EVENT type: PRELIM_DRM_I915_DEBUG_EVENT_UUID flags = %d size = %llu client_handle = %llu handle = %llu class_handle = %llu payload_size = %llu\n",
(int)event->flags, (uint64_t)event->size, (uint64_t)uuid->client_handle, (uint64_t)uuid->handle, (uint64_t)uuid->class_handle, (uint64_t)uuid->payload_size);
bool destroy = event->flags & PRELIM_DRM_I915_DEBUG_EVENT_DESTROY;
bool create = event->flags & PRELIM_DRM_I915_DEBUG_EVENT_CREATE;
if (destroy && clientHandleToConnection[uuid->client_handle]->uuidMap[uuid->handle].classIndex == NEO::DrmResourceClass::l0ZebinModule) {
DEBUG_BREAK_IF(clientHandleToConnection[uuid->client_handle]->uuidToModule[uuid->handle].segmentVmBindCounter[0] != 0 ||
clientHandleToConnection[uuid->client_handle]->uuidToModule[uuid->handle].loadAddresses[0].size() > 0);
clientHandleToConnection[uuid->client_handle]->uuidToModule.erase(uuid->handle);
}
if (destroy && (clientHandle == uuid->client_handle)) {
for (const auto &uuidToDevice : uuidL0CommandQueueHandleToDevice) {
if (uuidToDevice.first == uuid->handle) {
auto deviceIndex = uuidToDevice.second;
uuidL0CommandQueueHandleToDevice.erase(uuidToDevice.first);
zet_debug_event_t debugEvent = {};
debugEvent.type = ZET_DEBUG_EVENT_TYPE_PROCESS_EXIT;
if (tileSessionsEnabled) {
auto tileSession = reinterpret_cast<TileDebugSessionLinuxi915 *>(tileSessions[deviceIndex].first);
tileSession->processExit();
tileSession->pushApiEvent(debugEvent);
} else if (uuidL0CommandQueueHandleToDevice.size() == 0) {
pushApiEvent(debugEvent);
}
break;
}
}
break;
}
if (create) {
const auto &connection = clientHandleToConnection[uuid->client_handle];
if (uuid->payload_size) {
prelim_drm_i915_debug_read_uuid readUuid = {};
auto payload = std::make_unique<char[]>(uuid->payload_size);
readUuid.client_handle = uuid->client_handle;
readUuid.handle = static_cast<decltype(readUuid.handle)>(uuid->handle);
readUuid.payload_ptr = reinterpret_cast<uint64_t>(payload.get());
readUuid.payload_size = uuid->payload_size;
auto ret = ioctl(PRELIM_I915_DEBUG_IOCTL_READ_UUID, &readUuid);
if (ret == 0) {
std::string uuidString = std::string(readUuid.uuid, 36);
uint32_t classIndex = static_cast<uint32_t>(NEO::DrmResourceClass::maxSize);
auto validClassUuid = NEO::DrmUuid::getClassUuidIndex(uuidString, classIndex);
if (uuidString == NEO::uuidL0CommandQueueHash) {
if ((clientHandle == invalidClientHandle) || (clientHandle == uuid->client_handle)) {
clientHandle = uuid->client_handle;
uint32_t deviceIndex = 0;
if (readUuid.payload_size == sizeof(NEO::DebuggerL0::CommandQueueNotification)) {
auto notification = reinterpret_cast<NEO::DebuggerL0::CommandQueueNotification *>(payload.get());
deviceIndex = notification->subDeviceIndex;
UNRECOVERABLE_IF(notification->subDeviceCount > 0 && notification->subDeviceIndex >= notification->subDeviceCount);
}
zet_debug_event_t debugEvent = {};
debugEvent.type = ZET_DEBUG_EVENT_TYPE_PROCESS_ENTRY;
if (tileSessionsEnabled) {
UNRECOVERABLE_IF(uuidL0CommandQueueHandleToDevice.find(uuid->handle) != uuidL0CommandQueueHandleToDevice.end());
auto tileSession = static_cast<TileDebugSessionLinuxi915 *>(tileSessions[deviceIndex].first);
tileSession->processEntry();
tileSession->pushApiEvent(debugEvent);
} else if (uuidL0CommandQueueHandleToDevice.size() == 0) {
pushApiEvent(debugEvent);
}
uuidL0CommandQueueHandleToDevice[uuid->handle] = deviceIndex;
}
}
if (validClassUuid) {
if (clientHandle == invalidClientHandle) {
clientHandle = uuid->client_handle;
}
std::string className(reinterpret_cast<char *>(readUuid.payload_ptr), readUuid.payload_size);
connection->classHandleToIndex[uuid->handle] = {className, classIndex};
} else {
auto &uuidData = connection->uuidMap[uuid->handle];
uuidData.classHandle = uuid->class_handle;
uuidData.handle = uuid->handle;
uuidData.data = std::move(payload);
uuidData.dataSize = uuid->payload_size;
uuidData.classIndex = NEO::DrmResourceClass::maxSize;
const auto indexIt = connection->classHandleToIndex.find(uuid->class_handle);
if (indexIt != connection->classHandleToIndex.end()) {
uuidData.classIndex = static_cast<NEO::DrmResourceClass>(indexIt->second.second);
}
if (uuidData.classIndex == NEO::DrmResourceClass::elf) {
auto cpuVa = extractVaFromUuidString(uuidString);
uuidData.ptr = cpuVa;
}
if (uuidData.classIndex == NEO::DrmResourceClass::l0ZebinModule) {
uint64_t handle = uuid->handle;
auto &newModule = connection->uuidToModule[handle];
newModule.segmentCount = 0;
newModule.moduleHandle = handle;
for (uint32_t i = 0; i < NEO::EngineLimits::maxHandleCount; i++) {
newModule.segmentVmBindCounter[i] = 0;
newModule.loadAddresses[i].clear();
newModule.moduleLoadEventAcked[i] = false;
}
}
extractUuidData(uuid->client_handle, uuidData);
}
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_READ_UUID client_handle = %llu handle = %llu flags = %d uuid = %s ret = %d\n",
(uint64_t)readUuid.client_handle, (uint64_t)readUuid.handle, (int)readUuid.flags, uuidString.c_str(), ret);
} else {
PRINT_DEBUGGER_ERROR_LOG("PRELIM_I915_DEBUG_IOCTL_READ_UUID ret = %d errno = %d\n", ret, errno);
}
} else {
connection->uuidMap[uuid->handle].classHandle = uuid->class_handle;
connection->uuidMap[uuid->handle].handle = uuid->handle;
}
}
} break;
case PRELIM_DRM_I915_DEBUG_EVENT_VM: {
prelim_drm_i915_debug_event_vm *vm = reinterpret_cast<prelim_drm_i915_debug_event_vm *>(event);
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_READ_EVENT type: PRELIM_DRM_I915_DEBUG_EVENT_VM flags = %d size = %llu client_handle = %llu handle = %llu\n",
(int)event->flags, (uint64_t)event->size, (uint64_t)vm->client_handle, (uint64_t)vm->handle);
if (event->flags & PRELIM_DRM_I915_DEBUG_EVENT_CREATE) {
UNRECOVERABLE_IF(clientHandleToConnection.find(vm->client_handle) == clientHandleToConnection.end());
clientHandleToConnection[vm->client_handle]->vmIds.emplace(static_cast<uint64_t>(vm->handle));
}
if (event->flags & PRELIM_DRM_I915_DEBUG_EVENT_DESTROY) {
UNRECOVERABLE_IF(clientHandleToConnection.find(vm->client_handle) == clientHandleToConnection.end());
clientHandleToConnection[vm->client_handle]->vmIds.erase(static_cast<uint64_t>(vm->handle));
}
} break;
case PRELIM_DRM_I915_DEBUG_EVENT_VM_BIND: {
prelim_drm_i915_debug_event_vm_bind *vmBind = reinterpret_cast<prelim_drm_i915_debug_event_vm_bind *>(event);
if (!handleVmBindEvent(vmBind)) {
if (event->flags & PRELIM_DRM_I915_DEBUG_EVENT_NEED_ACK) {
prelim_drm_i915_debug_event_ack eventToAck = {};
eventToAck.type = vmBind->base.type;
eventToAck.seqno = vmBind->base.seqno;
eventToAck.flags = 0;
auto ret = ioctl(PRELIM_I915_DEBUG_IOCTL_ACK_EVENT, &eventToAck);
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_ACK_EVENT seqno = %llu ret = %d errno = %d\n", (uint64_t)eventToAck.seqno, ret, ret != 0 ? errno : 0);
} else {
auto sizeAligned = alignUp(event->size, sizeof(uint64_t));
auto pendingEvent = std::make_unique<uint64_t[]>(sizeAligned / sizeof(uint64_t));
memcpy_s(pendingEvent.get(), sizeAligned, event, event->size);
pendingVmBindEvents.push_back(std::move(pendingEvent));
}
}
} break;
case PRELIM_DRM_I915_DEBUG_EVENT_CONTEXT_PARAM: {
prelim_drm_i915_debug_event_context_param *contextParam = reinterpret_cast<prelim_drm_i915_debug_event_context_param *>(event);
handleContextParamEvent(contextParam);
} break;
case PRELIM_DRM_I915_DEBUG_EVENT_EU_ATTENTION: {
prelim_drm_i915_debug_event_eu_attention *attention = reinterpret_cast<prelim_drm_i915_debug_event_eu_attention *>(event);
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_READ_EVENT type: PRELIM_DRM_I915_DEBUG_EVENT_EU_ATTENTION flags = %d, seqno = %d, size = %llu"
" client_handle = %llu flags = %llu class = %lu instance = %lu bitmask_size = %lu ctx_handle = %llu\n",
(int)attention->base.flags, (uint64_t)attention->base.seqno, (uint64_t)attention->base.size,
(uint64_t)attention->client_handle, (uint64_t)attention->flags, (uint32_t)attention->ci.engine_class,
(uint32_t)attention->ci.engine_instance, (uint32_t)attention->bitmask_size, uint64_t(attention->ctx_handle));
handleAttentionEvent(attention);
} break;
case PRELIM_DRM_I915_DEBUG_EVENT_ENGINES: {
prelim_drm_i915_debug_event_engines *engines = reinterpret_cast<prelim_drm_i915_debug_event_engines *>(event);
handleEnginesEvent(engines);
} break;
case PRELIM_DRM_I915_DEBUG_EVENT_PAGE_FAULT: {
prelim_drm_i915_debug_event_page_fault *pf = reinterpret_cast<prelim_drm_i915_debug_event_page_fault *>(event);
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_READ_EVENT type: PRELIM_DRM_I915_DEBUG_EVENT_PAGE_FAULT flags = %d, address = %llu seqno = %d, size = %llu"
" client_handle = %llu flags = %llu class = %lu instance = %lu bitmask_size = %lu ctx_handle = %llu\n",
(int)pf->base.flags, (uint64_t)pf->page_fault_address, (uint64_t)pf->base.seqno, (uint64_t)pf->base.size,
(uint64_t)pf->client_handle, (uint64_t)pf->flags, (uint32_t)pf->ci.engine_class,
(uint32_t)pf->ci.engine_instance, (uint32_t)pf->bitmask_size, uint64_t(pf->ctx_handle));
NEO::EngineClassInstance engineClassInstance = {pf->ci.engine_class, pf->ci.engine_instance};
auto tileIndex = DrmHelper::getEngineTileIndex(connectedDevice, engineClassInstance);
auto vmHandle = getVmHandleFromClientAndlrcHandle(pf->client_handle, pf->lrc_handle);
if (vmHandle == invalidHandle) {
return;
}
PageFaultEvent pfEvent = {vmHandle, tileIndex, pf->page_fault_address, pf->bitmask_size, pf->bitmask};
handlePageFaultEvent(pfEvent);
} break;
default:
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_READ_EVENT type: UNHANDLED %d flags = %d size = %llu\n", (int)event->type, (int)event->flags, (uint64_t)event->size);
break;
}
}
void DebugSessionLinuxi915::processPendingVmBindEvents() {
size_t processedEvents = 0;
for (size_t index = 0; index < pendingVmBindEvents.size(); index++) {
auto debugEvent = reinterpret_cast<prelim_drm_i915_debug_event_vm_bind *>(pendingVmBindEvents[index].get());
if (handleVmBindEvent(debugEvent) == false) {
break;
}
processedEvents++;
}
if (processedEvents > 0) {
pendingVmBindEvents.erase(pendingVmBindEvents.begin(), pendingVmBindEvents.begin() + processedEvents);
}
}
ze_result_t DebugSessionLinuxi915::readEventImp(prelim_drm_i915_debug_event *drmDebugEvent) {
auto ret = ioctl(PRELIM_I915_DEBUG_IOCTL_READ_EVENT, drmDebugEvent);
if (ret != 0) {
PRINT_DEBUGGER_ERROR_LOG("PRELIM_I915_DEBUG_IOCTL_READ_EVENT failed: retCode: %d errno = %d\n", ret, errno);
return ZE_RESULT_NOT_READY;
} else if (drmDebugEvent->flags & ~static_cast<uint32_t>(PRELIM_DRM_I915_DEBUG_EVENT_CREATE | PRELIM_DRM_I915_DEBUG_EVENT_DESTROY | PRELIM_DRM_I915_DEBUG_EVENT_STATE_CHANGE | PRELIM_DRM_I915_DEBUG_EVENT_NEED_ACK)) {
PRINT_DEBUGGER_ERROR_LOG("PRELIM_I915_DEBUG_IOCTL_READ_EVENT unsupported flag = %d\n", (int)drmDebugEvent->flags);
return ZE_RESULT_ERROR_UNKNOWN;
}
return ZE_RESULT_SUCCESS;
}
bool DebugSessionLinuxi915::handleVmBindEvent(prelim_drm_i915_debug_event_vm_bind *vmBind) {
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_READ_EVENT type: PRELIM_DRM_I915_DEBUG_EVENT_VM_BIND flags = %d size = %llu client_handle = %llu vm_handle = %llu va_start = %p va_lenght = %llu num_uuids = %lu\n",
(int)vmBind->base.flags, (uint64_t)vmBind->base.size, (uint64_t)vmBind->client_handle, (uint64_t)vmBind->vm_handle, (void *)vmBind->va_start, (uint64_t)vmBind->va_length, (uint32_t)vmBind->num_uuids);
const bool createEvent = (vmBind->base.flags & PRELIM_DRM_I915_DEBUG_EVENT_CREATE);
const bool destroyEvent = (vmBind->base.flags & PRELIM_DRM_I915_DEBUG_EVENT_DESTROY);
bool shouldAckEvent = true;
if (vmBind->num_uuids > 0 && vmBind->base.size > sizeof(prelim_drm_i915_debug_event_vm_bind)) {
auto vmHandle = vmBind->vm_handle;
auto connection = clientHandleToConnection[vmBind->client_handle].get();
uint32_t index = 0;
const auto uuid = vmBind->uuids[index];
if (connection->uuidMap.find(uuid) == connection->uuidMap.end()) {
PRINT_DEBUGGER_ERROR_LOG("Unknown UUID handle = %llu\n", (uint64_t)uuid);
return false;
}
if (connection->vmToTile.find(vmHandle) == connection->vmToTile.end()) {
DEBUG_BREAK_IF(connection->vmToTile.find(vmHandle) == connection->vmToTile.end() && (vmBind->base.flags & PRELIM_DRM_I915_DEBUG_EVENT_NEED_ACK) &&
(connection->uuidMap[uuid].classIndex == NEO::DrmResourceClass::isa || connection->uuidMap[uuid].classIndex == NEO::DrmResourceClass::moduleHeapDebugArea));
return false;
}
const auto tileIndex = connection->vmToTile[vmHandle];
PRINT_DEBUGGER_INFO_LOG("UUID handle = %llu class index = %d\n", static_cast<uint64_t>(vmBind->uuids[index]), static_cast<int>(clientHandleToConnection[vmBind->client_handle]->uuidMap[vmBind->uuids[index]].classIndex));
auto classUuid = connection->uuidMap[uuid].classHandle;
if (connection->classHandleToIndex.find(classUuid) != connection->classHandleToIndex.end()) {
std::lock_guard<std::mutex> lock(asyncThreadMutex);
if (connection->classHandleToIndex[classUuid].second ==
static_cast<uint32_t>(NEO::DrmResourceClass::sbaTrackingBuffer)) {
connection->vmToStateBaseAreaBindInfo[vmHandle] = {vmBind->va_start, vmBind->va_length};
}
if (connection->classHandleToIndex[classUuid].second ==
static_cast<uint32_t>(NEO::DrmResourceClass::moduleHeapDebugArea)) {
auto &isaMap = connection->isaMap[tileIndex];
{
auto isa = std::make_unique<IsaAllocation>();
isa->bindInfo = {vmBind->va_start, vmBind->va_length};
isa->vmHandle = vmHandle;
isa->elfHandle = invalidHandle;
isa->moduleBegin = 0;
isa->moduleEnd = 0;
isa->tileInstanced = !(this->debugArea.isShared);
isa->perKernelModule = false;
uint32_t deviceBitfield = 0;
auto &debugModule = connection->uuidToModule[uuid];
memcpy_s(&deviceBitfield, sizeof(uint32_t),
&debugModule.deviceBitfield,
sizeof(debugModule.deviceBitfield));
const NEO::DeviceBitfield devices(deviceBitfield);
isa->deviceBitfield = devices;
isaMap[vmBind->va_start] = std::move(isa);
connection->vmToModuleDebugAreaBindInfo[vmHandle] = {vmBind->va_start,
vmBind->va_length};
}
}
if (connection->classHandleToIndex[classUuid].second ==
static_cast<uint32_t>(NEO::DrmResourceClass::contextSaveArea)) {
connection->vmToContextStateSaveAreaBindInfo[vmHandle] = {vmBind->va_start, vmBind->va_length};
}
}
bool handleEvent = isTileWithinDeviceBitfield(tileIndex);
if (handleEvent && connection->uuidMap[uuid].classIndex == NEO::DrmResourceClass::isa) {
uint32_t deviceBitfield = 0;
memcpy_s(&deviceBitfield, sizeof(uint32_t), connection->uuidMap[uuid].data.get(), connection->uuidMap[uuid].dataSize);
const NEO::DeviceBitfield devices(deviceBitfield);
PRINT_DEBUGGER_INFO_LOG("ISA vm_handle = %llu, tileIndex = %lu, deviceBitfield = %llu", vmHandle, tileIndex, devices.to_ulong());
const auto isaUuidHandle = connection->uuidMap[uuid].handle;
bool perKernelModules = true;
int moduleUUIDindex = -1;
bool tileInstanced = false;
bool allInstancesEventsReceived = true;
for (uint32_t uuidIter = 1; uuidIter < vmBind->num_uuids; uuidIter++) {
if (connection->uuidMap[vmBind->uuids[uuidIter]].classIndex == NEO::DrmResourceClass::l0ZebinModule) {
perKernelModules = false;
moduleUUIDindex = static_cast<int>(uuidIter);
PRINT_DEBUGGER_INFO_LOG("Zebin module uuid = %ull", (uint64_t)vmBind->uuids[uuidIter]);
}
if (connection->uuidMap[vmBind->uuids[uuidIter]].classHandle == isaUuidHandle) {
tileInstanced = true;
}
}
if (connection->isaMap[tileIndex].find(vmBind->va_start) == connection->isaMap[tileIndex].end() && createEvent) {
auto &isaMap = connection->isaMap[tileIndex];
auto &elfMap = connection->elfMap;
auto isa = std::make_unique<IsaAllocation>();
isa->bindInfo = {vmBind->va_start, vmBind->va_length};
isa->vmHandle = vmHandle;
isa->elfHandle = invalidHandle;
isa->moduleBegin = 0;
isa->moduleEnd = 0;
isa->tileInstanced = tileInstanced;
isa->perKernelModule = perKernelModules;
isa->deviceBitfield = devices;
for (index = 1; index < vmBind->num_uuids; index++) {
if (connection->uuidMap[vmBind->uuids[index]].classIndex == NEO::DrmResourceClass::elf) {
isa->elfHandle = vmBind->uuids[index];
if (!perKernelModules) {
auto &module = connection->uuidToModule[vmBind->uuids[moduleUUIDindex]];
DEBUG_BREAK_IF(module.elfHandle != 0 && connection->uuidMap[vmBind->uuids[index]].ptr != connection->uuidMap[module.elfHandle].ptr);
module.elfHandle = vmBind->uuids[index];
module.deviceBitfield = devices;
}
}
}
if (isa->elfHandle != invalidHandle) {
isa->moduleBegin = connection->uuidMap[isa->elfHandle].ptr;
isa->moduleEnd = isa->moduleBegin + connection->uuidMap[isa->elfHandle].dataSize;
elfMap[isa->moduleBegin] = isa->elfHandle;
} else {
PRINT_DEBUGGER_ERROR_LOG("No ELF provided by application\n", "");
}
auto gmmHelper = connectedDevice->getNEODevice()->getGmmHelper();
auto loadAddress = gmmHelper->canonize(vmBind->va_start);
zet_debug_event_t debugEvent = {};
debugEvent.type = ZET_DEBUG_EVENT_TYPE_MODULE_LOAD;
debugEvent.info.module.format = ZET_MODULE_DEBUG_INFO_FORMAT_ELF_DWARF;
debugEvent.info.module.load = loadAddress;
debugEvent.info.module.moduleBegin = isa->moduleBegin;
debugEvent.info.module.moduleEnd = isa->moduleEnd;
std::unique_lock<std::mutex> memLock(asyncThreadMutex);
isaMap[vmBind->va_start] = std::move(isa);
// Expect non canonical va_start
DEBUG_BREAK_IF(gmmHelper->decanonize(vmBind->va_start) != vmBind->va_start);
bool apiEventNeedsAck = (vmBind->base.flags & PRELIM_DRM_I915_DEBUG_EVENT_NEED_ACK);
// If ACK flag is not set when triggering MODULE LOAD event, auto-ack immediately
if (apiEventNeedsAck == false) {
isaMap[vmBind->va_start]->moduleLoadEventAck = true;
}
if (tileSessionsEnabled) {
auto tileAttached = tileSessions[tileIndex].second;
if (!tileAttached) {
isaMap[vmBind->va_start]->moduleLoadEventAck = true;
apiEventNeedsAck = false;
}
PRINT_DEBUGGER_INFO_LOG("TileDebugSession attached = %d, tileIndex = %lu, apiEventNeedsAck = %d", (int)tileAttached, tileIndex, (int)apiEventNeedsAck);
}
memLock.unlock();
if (perKernelModules) {
PRINT_DEBUGGER_INFO_LOG("New per-kernel module\n", "");
debugEvent.flags = apiEventNeedsAck ? ZET_DEBUG_EVENT_FLAG_NEED_ACK : 0;
if (tileSessionsEnabled) {
auto tileAttached = static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->insertModule(debugEvent.info.module);
if (tileAttached) {
static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->pushApiEvent(debugEvent);
}
} else {
if (devices.count() > 1) {
allInstancesEventsReceived = checkAllOtherTileIsaAllocationsPresent(tileIndex, vmBind->va_start);
}
if (allInstancesEventsReceived) {
pushApiEvent(debugEvent);
}
}
}
}
if (createEvent) {
std::lock_guard<std::mutex> lock(asyncThreadMutex);
if (!connection->isaMap[tileIndex][vmBind->va_start]->moduleLoadEventAck && perKernelModules) {
bool doNotAutoAckEvent = (!blockOnFenceMode && allInstancesEventsReceived); // in block on CPU mode - do not auto-ack last event for isa instance
doNotAutoAckEvent |= blockOnFenceMode; // in block on fence mode - do not auto-ack any events
if (doNotAutoAckEvent) {
PRINT_DEBUGGER_INFO_LOG("Add event to ack, seqno = %llu", (uint64_t)vmBind->base.seqno);
EventToAck ackEvent(vmBind->base.seqno, vmBind->base.type);
connection->isaMap[tileIndex][vmBind->va_start]->ackEvents.push_back(ackEvent);
shouldAckEvent = false;
}
}
connection->isaMap[tileIndex][vmBind->va_start]->vmBindCounter++;
}
if (destroyEvent && connection->isaMap[tileIndex].find(vmBind->va_start) != connection->isaMap[tileIndex].end()) {
DEBUG_BREAK_IF(connection->isaMap[tileIndex][vmBind->va_start]->vmBindCounter == 0);
connection->isaMap[tileIndex][vmBind->va_start]->vmBindCounter--;
if (connection->isaMap[tileIndex][vmBind->va_start]->vmBindCounter == 0) {
const auto &isa = connection->isaMap[tileIndex][vmBind->va_start];
zet_debug_event_t debugEvent = {};
auto gmmHelper = connectedDevice->getNEODevice()->getGmmHelper();
auto loadAddress = gmmHelper->canonize(isa->bindInfo.gpuVa);
debugEvent.type = ZET_DEBUG_EVENT_TYPE_MODULE_UNLOAD;
debugEvent.info.module.format = ZET_MODULE_DEBUG_INFO_FORMAT_ELF_DWARF;
debugEvent.info.module.load = loadAddress;
debugEvent.info.module.moduleBegin = isa->moduleBegin;
debugEvent.info.module.moduleEnd = isa->moduleEnd;
if (perKernelModules) {
if (tileSessionsEnabled) {
static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->removeModule(debugEvent.info.module);
static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->pushApiEvent(debugEvent);
} else {
bool notifyEvent = true;
if (isa->deviceBitfield.count() > 1) {
notifyEvent = checkAllOtherTileIsaAllocationsRemoved(tileIndex, vmBind->va_start);
}
if (notifyEvent) {
pushApiEvent(debugEvent);
}
}
}
std::unique_lock<std::mutex> memLock(asyncThreadMutex);
connection->isaMap[tileIndex].erase(vmBind->va_start);
memLock.unlock();
}
}
}
if (handleEvent) {
for (uint32_t uuidIter = 0; uuidIter < vmBind->num_uuids; uuidIter++) {
if (connection->uuidMap[vmBind->uuids[uuidIter]].classIndex == NEO::DrmResourceClass::l0ZebinModule) {
uint64_t loadAddress = 0;
auto &module = connection->uuidToModule[vmBind->uuids[uuidIter]];
auto moduleUsedOnTile = module.deviceBitfield.test(tileIndex) || module.deviceBitfield.count() == 0;
if (moduleUsedOnTile) {
if (createEvent) {
module.segmentVmBindCounter[tileIndex]++;
DEBUG_BREAK_IF(module.loadAddresses[tileIndex].size() > module.segmentCount);
bool canTriggerEvent = module.loadAddresses[tileIndex].size() == (module.segmentCount - 1);
module.loadAddresses[tileIndex].insert(vmBind->va_start);
if (!blockOnFenceMode) {
if (canTriggerEvent && module.loadAddresses[tileIndex].size() == module.segmentCount) {
auto gmmHelper = connectedDevice->getNEODevice()->getGmmHelper();
loadAddress = gmmHelper->canonize(*std::min_element(module.loadAddresses[tileIndex].begin(), module.loadAddresses[tileIndex].end()));
PRINT_DEBUGGER_INFO_LOG("Zebin module loaded at: %p, with %u isa allocations", (void *)loadAddress, module.segmentCount);
zet_debug_event_t debugEvent = {};
debugEvent.type = ZET_DEBUG_EVENT_TYPE_MODULE_LOAD;
debugEvent.info.module.format = ZET_MODULE_DEBUG_INFO_FORMAT_ELF_DWARF;
debugEvent.info.module.load = loadAddress;
debugEvent.info.module.moduleBegin = connection->uuidMap[module.elfHandle].ptr;
debugEvent.info.module.moduleEnd = connection->uuidMap[module.elfHandle].ptr + connection->uuidMap[module.elfHandle].dataSize;
if (!tileSessionsEnabled) {
bool allInstancesEventsReceived = true;
if (module.deviceBitfield.count() > 1) {
allInstancesEventsReceived = checkAllOtherTileModuleSegmentsPresent(tileIndex, module);
}
if (allInstancesEventsReceived) {
if (vmBind->base.flags & PRELIM_DRM_I915_DEBUG_EVENT_NEED_ACK) {
debugEvent.flags = ZET_DEBUG_EVENT_FLAG_NEED_ACK;
EventToAck ackEvent(vmBind->base.seqno, vmBind->base.type);
module.ackEvents[tileIndex].push_back(ackEvent);
}
pushApiEvent(debugEvent, vmBind->uuids[uuidIter]);
shouldAckEvent = false;
}
} else {
auto tileAttached = static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->insertModule(debugEvent.info.module);
if (tileAttached) {
if (vmBind->base.flags & PRELIM_DRM_I915_DEBUG_EVENT_NEED_ACK) {
debugEvent.flags = ZET_DEBUG_EVENT_FLAG_NEED_ACK;
EventToAck ackEvent(vmBind->base.seqno, vmBind->base.type);
module.ackEvents[tileIndex].push_back(ackEvent);
}
static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->pushApiEvent(debugEvent, vmBind->uuids[uuidIter]);
shouldAckEvent = false;
}
}
}
} else {
PRINT_DEBUGGER_INFO_LOG("Zebin module = %ull has load addresses = %d", static_cast<uint64_t>(vmBind->uuids[uuidIter]), static_cast<int>(module.loadAddresses[tileIndex].size()));
if (canTriggerEvent && module.loadAddresses[tileIndex].size() == module.segmentCount) {
auto gmmHelper = connectedDevice->getNEODevice()->getGmmHelper();
loadAddress = gmmHelper->canonize(*std::min_element(module.loadAddresses[tileIndex].begin(), module.loadAddresses[tileIndex].end()));
PRINT_DEBUGGER_INFO_LOG("Zebin module loaded at: %p, with %u isa allocations", (void *)loadAddress, module.segmentCount);
zet_debug_event_t debugEvent = {};
debugEvent.type = ZET_DEBUG_EVENT_TYPE_MODULE_LOAD;
debugEvent.info.module.format = ZET_MODULE_DEBUG_INFO_FORMAT_ELF_DWARF;
debugEvent.info.module.load = loadAddress;
debugEvent.info.module.moduleBegin = connection->uuidMap[module.elfHandle].ptr;
debugEvent.info.module.moduleEnd = connection->uuidMap[module.elfHandle].ptr + connection->uuidMap[module.elfHandle].dataSize;
if (vmBind->base.flags & PRELIM_DRM_I915_DEBUG_EVENT_NEED_ACK) {
debugEvent.flags = ZET_DEBUG_EVENT_FLAG_NEED_ACK;
}
if (!tileSessionsEnabled) {
bool allInstancesEventsReceived = true;
if (module.deviceBitfield.count() > 1) {
allInstancesEventsReceived = checkAllOtherTileModuleSegmentsPresent(tileIndex, module);
}
if (allInstancesEventsReceived) {
pushApiEvent(debugEvent, vmBind->uuids[uuidIter]);
shouldAckEvent = false;
}
} else {
auto tileAttached = static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->insertModule(debugEvent.info.module);
if (tileAttached) {
static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->pushApiEvent(debugEvent, vmBind->uuids[uuidIter]);
shouldAckEvent = false;
}
}
}
{
std::lock_guard<std::mutex> lock(asyncThreadMutex);
if (!module.moduleLoadEventAcked[tileIndex]) {
shouldAckEvent = false;
}
if (tileSessionsEnabled && !static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->isAttached) {
shouldAckEvent = true;
}
if (!shouldAckEvent && (vmBind->base.flags & PRELIM_DRM_I915_DEBUG_EVENT_NEED_ACK)) {
EventToAck ackEvent(vmBind->base.seqno, vmBind->base.type);
module.ackEvents[tileIndex].push_back(ackEvent);
}
}
}
} else { // destroyEvent
module.segmentVmBindCounter[tileIndex]--;
if (module.segmentVmBindCounter[tileIndex] == 0) {
zet_debug_event_t debugEvent = {};
auto gmmHelper = connectedDevice->getNEODevice()->getGmmHelper();
auto loadAddress = gmmHelper->canonize(*std::min_element(module.loadAddresses[tileIndex].begin(), module.loadAddresses[tileIndex].end()));
debugEvent.type = ZET_DEBUG_EVENT_TYPE_MODULE_UNLOAD;
debugEvent.info.module.format = ZET_MODULE_DEBUG_INFO_FORMAT_ELF_DWARF;
debugEvent.info.module.load = loadAddress;
debugEvent.info.module.moduleBegin = connection->uuidMap[module.elfHandle].ptr;
debugEvent.info.module.moduleEnd = connection->uuidMap[module.elfHandle].ptr + connection->uuidMap[module.elfHandle].dataSize;
if (tileSessionsEnabled) {
auto tileAttached = static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->removeModule(debugEvent.info.module);
if (tileAttached) {
static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->pushApiEvent(debugEvent, vmBind->uuids[uuidIter]);
}
} else {
bool notifyEvent = true;
if (module.deviceBitfield.count() > 1) {
notifyEvent = checkAllOtherTileModuleSegmentsRemoved(tileIndex, module);
}
if (notifyEvent) {
pushApiEvent(debugEvent, vmBind->uuids[uuidIter]);
}
}
module.loadAddresses[tileIndex].clear();
module.moduleLoadEventAcked[tileIndex] = false;
}
}
}
break;
}
}
}
}
if (shouldAckEvent && (vmBind->base.flags & PRELIM_DRM_I915_DEBUG_EVENT_NEED_ACK)) {
prelim_drm_i915_debug_event_ack eventToAck = {};
eventToAck.type = vmBind->base.type;
eventToAck.seqno = vmBind->base.seqno;
eventToAck.flags = 0;
auto ret = ioctl(PRELIM_I915_DEBUG_IOCTL_ACK_EVENT, &eventToAck);
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_ACK_EVENT seqno = %llu ret = %d errno = %d\n", (uint64_t)eventToAck.seqno, ret, ret != 0 ? errno : 0);
}
return true;
}
void DebugSessionLinuxi915::handleContextParamEvent(prelim_drm_i915_debug_event_context_param *contextParam) {
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_READ_EVENT type: PRELIM_DRM_I915_DEBUG_EVENT_CONTEXT_PARAM flags = %d size = %llu client_handle = %llu ctx_handle = %llu\n",
(int)contextParam->base.flags, (uint64_t)contextParam->base.size, (uint64_t)contextParam->client_handle, (uint64_t)contextParam->ctx_handle);
if (clientHandleToConnection[contextParam->client_handle]->contextsCreated.find(contextParam->ctx_handle) ==
clientHandleToConnection[contextParam->client_handle]->contextsCreated.end()) {
PRINT_DEBUGGER_ERROR_LOG("CONTEXT handle does not exist\n", "");
return;
}
switch (contextParam->param.param) {
case I915_CONTEXT_PARAM_VM:
PRINT_DEBUGGER_INFO_LOG("I915_CONTEXT_PARAM_VM vm = %llu\n", (uint64_t)contextParam->param.value);
clientHandleToConnection[contextParam->client_handle]->contextsCreated[contextParam->ctx_handle].vm = contextParam->param.value;
break;
case I915_CONTEXT_PARAM_ENGINES: {
PRINT_DEBUGGER_INFO_LOG("I915_CONTEXT_PARAM_ENGINES ctx_id = %lu param = %llu value = %llu size = %lu",
(uint32_t)contextParam->param.ctx_id,
(uint64_t)contextParam->param.param,
(uint64_t)contextParam->param.value, (uint32_t)contextParam->param.size);
auto numEngines = (contextParam->param.size - sizeof(i915_context_param_engines)) / sizeof(i915_engine_class_instance);
auto engines = reinterpret_cast<i915_context_param_engines *>(&(contextParam->param.value));
clientHandleToConnection[contextParam->client_handle]->contextsCreated[contextParam->ctx_handle].engines.clear();
for (uint32_t i = 0; i < numEngines; i++) {
clientHandleToConnection[contextParam->client_handle]->contextsCreated[contextParam->ctx_handle].engines.push_back(engines->engines[i]);
}
auto vm = clientHandleToConnection[contextParam->client_handle]->contextsCreated[contextParam->ctx_handle].vm;
if (numEngines && vm != invalidHandle) {
NEO::EngineClassInstance engineClassInstance = {engines->engines[0].engine_class, engines->engines[0].engine_instance};
auto tileIndex = DrmHelper::getEngineTileIndex(connectedDevice, engineClassInstance);
clientHandleToConnection[contextParam->client_handle]->vmToTile[vm] = tileIndex;
PRINT_DEBUGGER_INFO_LOG("VM = %llu mapped to TILE = %lu\n", vm, tileIndex);
}
break;
}
default:
PRINT_DEBUGGER_INFO_LOG("I915_CONTEXT_PARAM UNHANDLED = %llu\n", (uint64_t)contextParam->param.param);
break;
}
}
uint64_t DebugSessionLinuxi915::getVmHandleFromClientAndlrcHandle(uint64_t clientHandle, uint64_t lrcHandle) {
if (clientHandleToConnection.find(clientHandle) == clientHandleToConnection.end()) {
return invalidHandle;
}
auto &clientConnection = clientHandleToConnection[clientHandle];
if (clientConnection->lrcToContextHandle.find(lrcHandle) == clientConnection->lrcToContextHandle.end()) {
return invalidHandle;
}
auto contextHandle = clientConnection->lrcToContextHandle[lrcHandle];
if (clientConnection->contextsCreated.find(contextHandle) == clientConnection->contextsCreated.end()) {
return invalidHandle;
}
return clientConnection->contextsCreated[contextHandle].vm;
}
void DebugSessionLinuxi915::handleAttentionEvent(prelim_drm_i915_debug_event_eu_attention *attention) {
NEO::EngineClassInstance engineClassInstance = {attention->ci.engine_class, attention->ci.engine_instance};
auto tileIndex = DrmHelper::getEngineTileIndex(connectedDevice, engineClassInstance);
auto tmpInterruptSent = tileSessionsEnabled ? tileSessions[tileIndex].first->isInterruptSent() : interruptSent.load();
if (tmpInterruptSent && attention->base.seqno <= euControlInterruptSeqno[tileIndex]) {
PRINT_DEBUGGER_INFO_LOG("Discarding EU ATTENTION event for interrupt request. Event seqno == %d <= %d == interrupt seqno\n",
(uint32_t)attention->base.seqno,
(uint32_t)euControlInterruptSeqno[tileIndex]);
return;
}
newAttentionRaised();
if (!connectedDevice->getNEODevice()->getDeviceBitfield().test(tileIndex)) {
return;
}
std::vector<EuThread::ThreadId> threadsWithAttention;
auto hwInfo = connectedDevice->getHwInfo();
auto &l0GfxCoreHelper = connectedDevice->getL0GfxCoreHelper();
if (tmpInterruptSent) {
std::unique_ptr<uint8_t[]> bitmask;
size_t bitmaskSize;
auto attReadResult = threadControl({}, tileIndex, ThreadControlCmd::stopped, bitmask, bitmaskSize);
if (attReadResult == 0) {
threadsWithAttention = l0GfxCoreHelper.getThreadsFromAttentionBitmask(hwInfo, tileIndex, bitmask.get(), bitmaskSize);
}
}
AttentionEventFields attentionEventFields;
attentionEventFields.bitmask = attention->bitmask;
attentionEventFields.bitmaskSize = attention->bitmask_size;
attentionEventFields.clientHandle = attention->client_handle;
attentionEventFields.contextHandle = attention->ctx_handle;
attentionEventFields.lrcHandle = attention->lrc_handle;
if (updateStoppedThreadsAndCheckTriggerEvents(attentionEventFields, tileIndex, threadsWithAttention) != ZE_RESULT_SUCCESS) {
PRINT_DEBUGGER_ERROR_LOG("Failed to update stopped threads and check trigger events\n", "");
}
}
std::unique_lock<std::mutex> DebugSessionLinuxi915::getThreadStateMutexForTileSession(uint32_t tileIndex) {
return std::unique_lock<std::mutex>(static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->threadStateMutex);
}
void DebugSessionLinuxi915::checkTriggerEventsForAttentionForTileSession(uint32_t tileIndex) {
static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->checkTriggerEventsForAttention();
}
void DebugSessionLinuxi915::addThreadToNewlyStoppedFromRaisedAttentionForTileSession(EuThread::ThreadId threadId,
uint64_t memoryHandle,
const void *stateSaveArea,
uint32_t tileIndex) {
static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->addThreadToNewlyStoppedFromRaisedAttention(threadId, memoryHandle, stateSaveAreaMemory.data());
}
void DebugSessionLinuxi915::handleEnginesEvent(prelim_drm_i915_debug_event_engines *engines) {
PRINT_DEBUGGER_INFO_LOG("ENGINES event: client_handle = %llu, ctx_handle = %llu, num_engines = %llu %s\n",
(uint64_t)engines->client_handle,
(uint64_t)engines->ctx_handle,
(uint64_t)engines->num_engines,
engines->base.flags & PRELIM_DRM_I915_DEBUG_EVENT_CREATE ? "CREATE" : engines->base.flags & PRELIM_DRM_I915_DEBUG_EVENT_DESTROY ? "DESTROY"
: "");
UNRECOVERABLE_IF(clientHandleToConnection.find(engines->client_handle) == clientHandleToConnection.end());
if (engines->base.flags & PRELIM_DRM_I915_DEBUG_EVENT_CREATE) {
for (uint64_t i = 0; i < engines->num_engines; ++i) {
auto lrc = engines->engines[i].lrc_handle;
if (lrc != 0) {
PRINT_DEBUGGER_INFO_LOG(" lrc%llu = %llu", i, lrc);
}
clientHandleToConnection[engines->client_handle]->lrcToContextHandle[lrc] = engines->ctx_handle;
}
}
if (engines->base.flags & PRELIM_DRM_I915_DEBUG_EVENT_DESTROY) {
for (uint64_t i = 0; i < engines->num_engines; ++i) {
auto lrc = engines->engines[i].lrc_handle;
PRINT_DEBUGGER_INFO_LOG(" lrc%llu = %llu\n", i, lrc);
clientHandleToConnection[engines->client_handle]->lrcToContextHandle.erase(lrc);
}
}
}
void DebugSessionLinuxi915::pushApiEventForTileSession(uint32_t tileIndex, zet_debug_event_t &debugEvent) {
static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->pushApiEvent(debugEvent);
}
void DebugSessionLinuxi915::setPageFaultForTileSession(uint32_t tileIndex, EuThread::ThreadId threadId, bool hasPageFault) {
static_cast<TileDebugSessionLinuxi915 *>(tileSessions[tileIndex].first)->allThreads[threadId]->setPageFault(true);
}
void DebugSessionLinuxi915::extractUuidData(uint64_t client, const UuidData &uuidData) {
if (uuidData.classIndex == NEO::DrmResourceClass::sbaTrackingBuffer ||
uuidData.classIndex == NEO::DrmResourceClass::moduleHeapDebugArea ||
uuidData.classIndex == NEO::DrmResourceClass::contextSaveArea) {
UNRECOVERABLE_IF(uuidData.dataSize != 8);
uint64_t *data = (uint64_t *)uuidData.data.get();
if (uuidData.classIndex == NEO::DrmResourceClass::sbaTrackingBuffer) {
clientHandleToConnection[client]->stateBaseAreaGpuVa = *data;
PRINT_DEBUGGER_INFO_LOG("SbaTrackingBuffer GPU VA = %p", (void *)clientHandleToConnection[clientHandle]->stateBaseAreaGpuVa);
}
if (uuidData.classIndex == NEO::DrmResourceClass::moduleHeapDebugArea) {
clientHandleToConnection[client]->moduleDebugAreaGpuVa = *data;
PRINT_DEBUGGER_INFO_LOG("ModuleHeapDebugArea GPU VA = %p", (void *)clientHandleToConnection[clientHandle]->moduleDebugAreaGpuVa);
}
if (uuidData.classIndex == NEO::DrmResourceClass::contextSaveArea) {
clientHandleToConnection[client]->contextStateSaveAreaGpuVa = *data;
PRINT_DEBUGGER_INFO_LOG("ContextSaveArea GPU VA = %p", (void *)clientHandleToConnection[clientHandle]->contextStateSaveAreaGpuVa);
}
}
if (uuidData.classIndex == NEO::DrmResourceClass::l0ZebinModule) {
uint32_t segmentCount = 0;
memcpy_s(&segmentCount, sizeof(uint32_t), uuidData.data.get(), uuidData.dataSize);
clientHandleToConnection[client]->uuidToModule[uuidData.handle].segmentCount = segmentCount;
PRINT_DEBUGGER_INFO_LOG("Zebin module = %ull, segment count = %ul", uuidData.handle, segmentCount);
}
}
uint64_t DebugSessionLinuxi915::extractVaFromUuidString(std::string &uuid) {
const char uuidString[] = "%04" SCNx64 "-%012" SCNx64;
auto subString = uuid.substr(19);
uint64_t parts[2] = {0, 0};
sscanf(subString.c_str(), uuidString, &parts[1], &parts[0]);
parts[0] |= (parts[1] & 0xFFFF) << 48;
return parts[0];
}
int DebugSessionLinuxi915::threadControl(const std::vector<EuThread::ThreadId> &threads, uint32_t tile, ThreadControlCmd threadCmd, std::unique_ptr<uint8_t[]> &bitmaskOut, size_t &bitmaskSizeOut) {
auto hwInfo = connectedDevice->getHwInfo();
auto classInstance = DrmHelper::getEngineInstance(connectedDevice, tile, hwInfo.capabilityTable.defaultEngineType);
UNRECOVERABLE_IF(!classInstance);
auto &l0GfxCoreHelper = connectedDevice->getL0GfxCoreHelper();
bitmaskSizeOut = 0;
struct prelim_drm_i915_debug_eu_control euControl = {};
euControl.client_handle = clientHandle;
euControl.ci.engine_class = classInstance->engineClass;
euControl.ci.engine_instance = classInstance->engineInstance;
euControl.bitmask_size = 0;
euControl.bitmask_ptr = 0;
decltype(prelim_drm_i915_debug_eu_control::cmd) command = 0;
switch (threadCmd) {
case ThreadControlCmd::interruptAll:
command = PRELIM_I915_DEBUG_EU_THREADS_CMD_INTERRUPT_ALL;
break;
case ThreadControlCmd::interrupt:
command = PRELIM_I915_DEBUG_EU_THREADS_CMD_INTERRUPT;
break;
case ThreadControlCmd::resume:
command = PRELIM_I915_DEBUG_EU_THREADS_CMD_RESUME;
break;
case ThreadControlCmd::stopped:
command = PRELIM_I915_DEBUG_EU_THREADS_CMD_STOPPED;
break;
}
euControl.cmd = command;
std::unique_ptr<uint8_t[]> bitmask;
size_t bitmaskSize = 0;
if (command == PRELIM_I915_DEBUG_EU_THREADS_CMD_INTERRUPT ||
command == PRELIM_I915_DEBUG_EU_THREADS_CMD_RESUME ||
command == PRELIM_I915_DEBUG_EU_THREADS_CMD_STOPPED) {
l0GfxCoreHelper.getAttentionBitmaskForSingleThreads(threads, hwInfo, bitmask, bitmaskSize);
euControl.bitmask_size = static_cast<uint32_t>(bitmaskSize);
euControl.bitmask_ptr = reinterpret_cast<uint64_t>(bitmask.get());
}
if (command == PRELIM_I915_DEBUG_EU_THREADS_CMD_RESUME) {
applyResumeWa(bitmask.get(), bitmaskSize);
}
printBitmask(bitmask.get(), bitmaskSize);
auto euControlRetVal = ioctl(PRELIM_I915_DEBUG_IOCTL_EU_CONTROL, &euControl);
if (euControlRetVal != 0) {
PRINT_DEBUGGER_ERROR_LOG("PRELIM_I915_DEBUG_IOCTL_EU_CONTROL failed: retCode: %d errno = %d command = %d\n", euControlRetVal, errno, command);
} else {
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_EU_CONTROL: seqno = %llu command = %u\n", (uint64_t)euControl.seqno, command);
}
if (command == PRELIM_I915_DEBUG_EU_THREADS_CMD_INTERRUPT ||
command == PRELIM_I915_DEBUG_EU_THREADS_CMD_INTERRUPT_ALL) {
if (euControlRetVal == 0) {
euControlInterruptSeqno[tile] = euControl.seqno;
} else {
euControlInterruptSeqno[tile] = invalidHandle;
}
}
if (threadCmd == ThreadControlCmd::stopped) {
bitmaskOut = std::move(bitmask);
UNRECOVERABLE_IF(bitmaskOut.get() == nullptr);
bitmaskSizeOut = euControl.bitmask_size;
}
return euControlRetVal;
}
void DebugSessionLinuxi915::printContextVms() {
if (NEO::debugManager.flags.DebuggerLogBitmask.get() & NEO::DebugVariables::DEBUGGER_LOG_BITMASK::LOG_INFO) {
PRINT_DEBUGGER_LOG(stdout, "\nINFO: Context - VM map: ", "");
for (size_t i = 0; i < clientHandleToConnection[clientHandle]->contextsCreated.size(); i++) {
PRINT_DEBUGGER_LOG(stdout, "\n Context = %llu : %llu ", (uint64_t)clientHandleToConnection[clientHandle]->contextsCreated[i].handle,
(uint64_t)clientHandleToConnection[clientHandle]->contextsCreated[i].vm);
}
}
}
int DebugSessionLinuxi915::eventAckIoctl(EventToAck &event) {
prelim_drm_i915_debug_event_ack eventToAck = {};
eventToAck.type = event.type;
eventToAck.seqno = event.seqno;
eventToAck.flags = 0;
auto ret = ioctl(PRELIM_I915_DEBUG_IOCTL_ACK_EVENT, &eventToAck);
PRINT_DEBUGGER_INFO_LOG("PRELIM_I915_DEBUG_IOCTL_ACK_EVENT seqno = %llu, ret = %d errno = %d\n", (uint64_t)event.seqno, ret, ret != 0 ? errno : 0);
return ret;
}
void TileDebugSessionLinuxi915::readStateSaveAreaHeader() {
const auto header = rootDebugSession->getStateSaveAreaHeader();
if (header) {
auto headerSize = rootDebugSession->stateSaveAreaHeader.size();
this->stateSaveAreaHeader.assign(reinterpret_cast<const char *>(header), reinterpret_cast<const char *>(header) + headerSize);
this->sipSupportsSlm = rootDebugSession->sipSupportsSlm;
}
};
bool TileDebugSessionLinuxi915::insertModule(zet_debug_event_info_module_t module) {
std::lock_guard<std::mutex> lock(asyncThreadMutex);
modules.insert({module.load, module});
return isAttached;
}
bool TileDebugSessionLinuxi915::removeModule(zet_debug_event_info_module_t module) {
std::lock_guard<std::mutex> lock(asyncThreadMutex);
modules.erase(module.load);
return isAttached;
}
bool TileDebugSessionLinuxi915::processEntry() {
std::lock_guard<std::mutex> lock(asyncThreadMutex);
processEntryState = true;
return isAttached;
}
bool TileDebugSessionLinuxi915::processExit() {
std::lock_guard<std::mutex> lock(asyncThreadMutex);
processEntryState = false;
return isAttached;
}
void TileDebugSessionLinuxi915::attachTile() {
std::lock_guard<std::mutex> lock(asyncThreadMutex);
// clear apiEvents queue
apiEvents = decltype(apiEvents){};
if (detached) {
zet_debug_event_t debugEvent = {};
debugEvent.type = ZET_DEBUG_EVENT_TYPE_DETACHED;
debugEvent.info.detached.reason = ZET_DEBUG_DETACH_REASON_INVALID;
apiEvents.push(debugEvent);
} else {
if (processEntryState) {
zet_debug_event_t event = {};
event.type = ZET_DEBUG_EVENT_TYPE_PROCESS_ENTRY;
event.flags = 0;
apiEvents.push(event);
}
if (modules.size()) {
zet_debug_event_t event = {};
event.type = ZET_DEBUG_EVENT_TYPE_MODULE_LOAD;
event.flags = 0;
for (const auto &module : modules) {
memcpy_s(&event.info.module, sizeof(event.info.module), &module.second, sizeof(module.second));
apiEvents.push(event);
}
}
}
isAttached = true;
}
void TileDebugSessionLinuxi915::detachTile() {
std::vector<uint64_t> moduleUuids;
{
std::lock_guard<std::mutex> lock(asyncThreadMutex);
for (const auto &eventToAck : eventsToAck) {
auto moduleUUID = eventToAck.second;
moduleUuids.push_back(moduleUUID);
}
eventsToAck.clear();
isAttached = false;
}
for (const auto &uuid : moduleUuids) {
rootDebugSession->ackModuleEvents(this->tileIndex, uuid);
}
}
} // namespace L0
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