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L0Debug - support for out of order debug events

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Related-To: NEO-7366
- if VM BIND comes with VM that cannot be mapped to tile,
push the event to pending events and process next events
until context params event with comes
- when pending event is handled - remove it from queue

Signed-off-by: Mateusz Hoppe <mateusz.hoppe@intel.com>
This commit is contained in:
Mateusz Hoppe
2022-09-29 16:07:22 +00:00
committed by Compute-Runtime-Automation
parent 0d6ad522cb
commit 6811b1079f
4 changed files with 485 additions and 22 deletions
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72
level_zero/tools/source/debug/linux/prelim/debug_session.cpp
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@@ -257,8 +257,12 @@ ze_result_t DebugSessionLinux::initialize() {
bool eventAvailable = false;
do {
auto eventMemory = getInternalEvent();
auto debugEvent = reinterpret_cast<prelim_drm_i915_debug_event *>(eventMemory.get());
if (eventMemory != nullptr) {
handleEvent(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();
}
eventAvailable = true;
} else {
eventAvailable = false;
@@ -385,7 +389,12 @@ std::unique_ptr<uint64_t[]> DebugSessionLinux::getInternalEvent() {
void DebugSessionLinux::handleEventsAsync() {
auto eventMemory = getInternalEvent();
if (eventMemory != nullptr) {
handleEvent(reinterpret_cast<prelim_drm_i915_debug_event *>(eventMemory.get()));
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();
}
}
}
@@ -645,7 +654,21 @@ void DebugSessionLinux::handleEvent(prelim_drm_i915_debug_event *event) {
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);
handleVmBindEvent(vmBind);
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;
@@ -676,6 +699,20 @@ void DebugSessionLinux::handleEvent(prelim_drm_i915_debug_event *event) {
}
}
void DebugSessionLinux::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);
}
}
bool DebugSessionLinux::checkAllEventsCollected() {
bool allEventsCollected = false;
bool clientConnected = (this->clientHandle != invalidClientHandle);
@@ -756,7 +793,7 @@ ze_result_t DebugSessionLinux::readEventImp(prelim_drm_i915_debug_event *drmDebu
return ZE_RESULT_NOT_READY;
}
void DebugSessionLinux::handleVmBindEvent(prelim_drm_i915_debug_event_vm_bind *vmBind) {
bool DebugSessionLinux::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);
@@ -774,10 +811,15 @@ void DebugSessionLinux::handleVmBindEvent(prelim_drm_i915_debug_event_vm_bind *v
if (connection->uuidMap.find(uuid) == connection->uuidMap.end()) {
PRINT_DEBUGGER_ERROR_LOG("Unknown UUID handle = %llu\n", (uint64_t)uuid);
return;
return false;
}
if (connection->vmToTile.find(vmHandle) == connection->vmToTile.end()) {
DEBUG_BREAK_IF(connection->vmToTile.find(vmHandle) == connection->vmToTile.end() &&
(connection->uuidMap[uuid].classIndex == NEO::DrmResourceClass::Isa || connection->uuidMap[uuid].classIndex == NEO::DrmResourceClass::ModuleHeapDebugArea));
return false;
}
DEBUG_BREAK_IF(connection->vmToTile.find(vmHandle) == connection->vmToTile.end() && connection->uuidMap[uuid].classIndex == NEO::DrmResourceClass::Isa);
const auto tileIndex = connection->vmToTile[vmHandle];
PRINT_DEBUGGER_INFO_LOG("UUID handle = %llu class index = %d\n", (uint64_t)vmBind->uuids[index], (int)clientHandleToConnection[vmBind->client_handle]->uuidMap[vmBind->uuids[index]].classIndex);
@@ -1051,16 +1093,18 @@ void DebugSessionLinux::handleVmBindEvent(prelim_drm_i915_debug_event_vm_bind *v
}
}
}
}
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);
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;
}
return false;
}
void DebugSessionLinux::handleContextParamEvent(prelim_drm_i915_debug_event_context_param *contextParam) {