DXGKCB_MAPPHYSICALMEMORY - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// d3dkmddi.h
DXGKCB_MAPPHYSICALMEMORY DxgkcbMapphysicalmemory;
NTSTATUS DxgkcbMapphysicalmemory(
[in/out] IN_OUT_PDXGKARGCB_MAP_PHYSICAL_MEMORY pArgs
)
{...}
View the official Windows Driver Kit DDI referenceNo description available.
A kernel-mode display miniport driver calls DXGKCB_MAPPHYSICALMEMORY to map CPU-visible virtual addresses to the underlying physical memory.
pArgs [in/out]Pointer to a DXGKARGCB_MAP_PHYSICAL_MEMORY structure that contains information about the physical memory to map.
DXGKCB_MAPPHYSICALMEMORY returns STATUS_SUCCESS if the operation succeeds. Otherwise, returns an appropriate NTSTATUS error code.
DXGKCB_XXX functions are implemented by Dxgkrnl. To use this callback function, set the appropriate members of DXGKARGCB_MAP_PHYSICAL_MEMORY and then call DxgkCbMapPhysicalMemory via the DXGKRNL_INTERFACE.
The cache type used for the mappings will be based on the CacheType specified when the physical memory object was created in a call to DXGKCB_CREATEPHYSICALMEMORYOBJECT.
See IOMMU DMA remapping for more information.
DXGKCB_CREATEPHYSICALMEMORYOBJECT