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This is the name we use for the GPUVM > + page table used by the GPU kernel driver. It remaps system resources > + (memory or MMIO space) into the GPU's address space so the GPU can access > + them. The name GART harkens back to the days of AGP when the platform > + provided an MMU that the GPU could use to get a contiguous view of > + scattered pages for DMA. The MMU has since moved on to the GPU, but the > + name stuck. > + > GC > Graphics and Compute > > GMC > Graphic Memory Controller > > + GPUVM > + GPU Virtual Memory. This is the GPU's MMU. The GPU supports multiple > + virtual address spaces that can be in flight at any given time. These > + allow the GPU to remap VRAM and system resources into GPU virtual address > + spaces for use by the GPU kernel driver and applications using the GPU. > + These provide memory protection for different applications using the GPU. > + > + GTT > + Graphics Translation Tables. This is a memory pool managed through TTM > + which provides access to system resources (memory or MMIO space) for > + use by the GPU. These addresses can be mapped into the "GART" GPUVM page > + table for use by the kernel driver or into per process GPUVM page tables > + for application usage. > + > IH > Interrupt Handler >