公开(公告)号：US20170185526A9

公开(公告)日：2017-06-29

申请号：US14055382

申请日：2013-10-16

Applicant: NVIDIA Corporation

Inventor： Jerome F. DULUK, JR. ,  Cameron BUSCHARDT ,  Sherry CHEUNG ,  James Leroy DEMING ,  Samuel H. DUNCAN ,  Lucien DUNNING ,  Robert GEORGE ,  Arvind GOPALAKRISHNAN ,  Mark HAIRGROVE ,  Chenghuan JIA ,  John MASHEY

IPC: G06F12/10

CPC classification number: G06F12/1009 ,  G06F11/073 ,  G06F11/0793 ,  G06F12/08 ,  G06F12/10 ,  G06F12/1072 ,  G06F12/109 ,  G06F12/12 ,  G06F2212/1016

Abstract: A system for managing virtual memory. The system includes a first processing unit configured to execute a first operation that references a first virtual memory address. The system also includes a first memory management unit (MMU) associated with the first processing unit and configured to generate a first page fault upon determining that a first page table that is stored in a first memory unit associated with the first processing unit does not include a mapping corresponding to the first virtual memory address. The system further includes a first copy engine associated with the first processing unit. The first copy engine is configured to read a first command queue to determine a first mapping that corresponds to the first virtual memory address and is included in a first page state directory. The first copy engine is also configured to update the first page table to include the first mapping.