intel_gtt (1) - Linux Man Pages
intel_gtt: Dump the contents of an Intel GPU's GTT
NAMEintel_gtt - Dump the contents of an Intel GPU's GTT
DESCRIPTIONintel_gtt is a tool to view the contents of the GTT on an Intel GPU. The GTT is the page table that maps between GPU addresses and system memory. This tool can be useful in debugging the Linux AGP driver initialization of the chip or in debugging later overwriting of the GTT with garbage data.