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fix: Crash on over memory allocation

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- Add defer backing flag to gem create ioctl
- Make memory resident before lock

Related-To: NEO-13403

Signed-off-by: Bellekallu Rajkiran <bellekallu.rajkiran@intel.com>
This commit is contained in:
Bellekallu Rajkiran
2025-01-24 10:44:43 +00:00
committed by Compute-Runtime-Automation
parent 335aa6e8b9
commit 212ccb8bd4
7 changed files with 54 additions and 5 deletions
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11
shared/source/os_interface/linux/drm_memory_manager.cpp
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@@ -1518,8 +1518,17 @@ void *DrmMemoryManager::lockResourceImpl(GraphicsAllocation &graphicsAllocation)
return cpuPtr;
}
auto bo = static_cast<DrmAllocation &>(graphicsAllocation).getBO();
auto rootDeviceIndex = graphicsAllocation.getRootDeviceIndex();
auto ioctlHelper = this->getDrm(rootDeviceIndex).getIoctlHelper();
if (ioctlHelper->makeResidentBeforeLockNeeded()) {
auto memoryOperationsInterface = static_cast<DrmMemoryOperationsHandler *>(executionEnvironment.rootDeviceEnvironments[rootDeviceIndex]->memoryOperationsInterface.get());
auto graphicsAllocationPtr = &graphicsAllocation;
[[maybe_unused]] auto ret = memoryOperationsInterface->makeResidentWithinOsContext(getDefaultOsContext(rootDeviceIndex), ArrayRef<NEO::GraphicsAllocation *>(&graphicsAllocationPtr, 1), false) == MemoryOperationsStatus::success;
DEBUG_BREAK_IF(!ret);
}
auto bo = static_cast<DrmAllocation &>(graphicsAllocation).getBO();
if (graphicsAllocation.getAllocationType() == AllocationType::writeCombined) {
auto addr = lockBufferObject(bo);
auto alignedAddr = alignUp(addr, MemoryConstants::pageSize64k);

2
shared/source/os_interface/linux/ioctl_helper.h
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@@ -236,6 +236,8 @@ class IoctlHelper {
virtual bool isTimestampsRefreshEnabled() { return false; }
virtual bool makeResidentBeforeLockNeeded() { return false; }
protected:
Drm &drm;
ExternalCtx *externalCtx = nullptr;

2
shared/source/os_interface/linux/xe/ioctl_helper_xe.cpp
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@@ -665,6 +665,7 @@ int IoctlHelperXe::createGemExt(const MemRegionsVec &memClassInstances, size_t a
}
create.placement = static_cast<uint32_t>(memoryInstances.to_ulong());
create.cpu_caching = this->getCpuCachingMode(isCoherent, isSysMemOnly);
create.flags |= DRM_XE_GEM_CREATE_FLAG_DEFER_BACKING;
printDebugString(debugManager.flags.PrintBOCreateDestroyResult.get(), stdout, "Performing DRM_IOCTL_XE_GEM_CREATE with {vmid=0x%x size=0x%lx flags=0x%x placement=0x%x caching=%hu }",
create.vm_id, create.size, create.flags, create.placement, create.cpu_caching);
@@ -707,6 +708,7 @@ uint32_t IoctlHelperXe::createGem(uint64_t size, uint32_t memoryBanks, std::opti
}
create.placement = static_cast<uint32_t>(memoryInstances.to_ulong());
create.cpu_caching = this->getCpuCachingMode(isCoherent, isSysMemOnly);
create.flags |= DRM_XE_GEM_CREATE_FLAG_DEFER_BACKING;
printDebugString(debugManager.flags.PrintBOCreateDestroyResult.get(), stdout, "Performing DRM_IOCTL_XE_GEM_CREATE with {vmid=0x%x size=0x%lx flags=0x%x placement=0x%x caching=%hu }",
create.vm_id, create.size, create.flags, create.placement, create.cpu_caching);

1
shared/source/os_interface/linux/xe/ioctl_helper_xe.h
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@@ -136,6 +136,7 @@ class IoctlHelperXe : public IoctlHelper {
int getTileIdFromGtId(int gtId) const override {
return gtIdToTileId[gtId];
}
bool makeResidentBeforeLockNeeded() override { return true; }
protected:
static constexpr uint32_t maxContextSetProperties = 4;