Edit

DXGK_PAGE_FAULT_FLAGS enumeration (d3dkmdt.h)

  • Article

DXGK_PAGE_FAULT_FLAGS enumeration describes the nature of the page fault that has occurred and the prescribed OS recovery action.

Syntax

typedef enum _DXGK_PAGE_FAULT_FLAGS {
  DXGK_PAGE_FAULT_WRITE,
  DXGK_PAGE_FAULT_FENCE_INVALID,
  DXGK_PAGE_FAULT_ADAPTER_RESET_REQUIRED,
  DXGK_PAGE_FAULT_ENGINE_RESET_REQUIRED,
  DXGK_PAGE_FAULT_FATAL_HARDWARE_ERROR,
  DXGK_PAGE_FAULT_IOMMU,
  DXGK_PAGE_FAULT_HW_CONTEXT_VALID,
  DXGK_PAGE_FAULT_PROCESS_HANDLE_VALID
} DXGK_PAGE_FAULT_FLAGS;

Constants

 
DXGK_PAGE_FAULT_WRITE
When set, this indicates that the faulted GPU virtual operation was a write operation.
DXGK_PAGE_FAULT_FENCE_INVALID
When set, this indicates that a faulting packet could not be determined. In this case, the OS will have to perform a GPU reset action to clear the GPU error state, and one of the subsequent bits will have to be set.

When not set, this indicates that the DMA packet submitted with FaultedFenceId (in the DXGKARGCB_NOTIFY_INTERRUPT_DATA structure) was the cause of the fault. Similar to how the preemption and completion fences are handled, the OS will treat all pending packets with fence IDs less than FaultedFenceId as completed, and the driver will be required to advance its notion of the completed fence ID to FaultedFenceId.
DXGK_PAGE_FAULT_ADAPTER_RESET_REQUIRED
When set, this indicates that the fault put the GPU into a state that requires a full adapter reset.
DXGK_PAGE_FAULT_ENGINE_RESET_REQUIRED
When set, this indicates that the fault put the GPU into a state that requires a GPU engine reset.
DXGK_PAGE_FAULT_FATAL_HARDWARE_ERROR
When set, this indicates that the system hardware, not just the GPU, cannot continue, and the OS should issue a bugcheck.
DXGK_PAGE_FAULT_IOMMU
When set, this indicates that the faulting GPU's virtual address was mapped using IoMmu. When not set, the faulting GPU's virtual address was mapped using the GPU's memory management unit.
DXGK_PAGE_FAULT_HW_CONTEXT_VALID
DXGK_PAGE_FAULT_PROCESS_HANDLE_VALID

Requirements

Requirement Value
Minimum supported client Windows 10
Minimum supported server Windows Server 2016
Header d3dkmdt.h (include D3dkmddi.h)

See also

DXGKARGCB_NOTIFY_INTERRUPT_DATA