Invention Grant
US09086813B2 Method and apparatus to save and restore system memory management unit (MMU) contexts
有权
保存和恢复系统内存管理单元(MMU)上下文的方法和装置
- Patent Title: Method and apparatus to save and restore system memory management unit (MMU) contexts
- Patent Title (中): 保存和恢复系统内存管理单元(MMU)上下文的方法和装置
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Application No.: US13834380Application Date: 2013-03-15
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Publication No.: US09086813B2Publication Date: 2015-07-21
- Inventor: Thomas M. Zeng , Azzedine Touzni , Thomas Andrew Sartorius
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Withrow & Terranova, PLLC
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G06F12/10 ; G06F12/12 ; G06T1/60

Abstract:
A wireless mobile device includes a graphic processing unit (GPU) that has a system memory management unit (MMU) for saving and restoring system MMU translation contexts. The system MMU is coupled to a memory and the GPU. The system MMU includes a set of hardware resources. The hardware resources may be context banks, with each of the context banks having a set of hardware registers. The system MMU also includes a hardware controller that is configured to restore a hardware resource associated with an access stream of content issued by an execution thread of the GPU. The associated hardware resource may be restored from the memory into a physical hardware resource when the hardware resource associated with the access stream of content is not stored within one of the hardware resources.
Public/Granted literature
- US20140282580A1 METHOD AND APPARATUS TO SAVE AND RESTORE SYSTEM MEMORY MANAGEMENT UNIT (MMU) CONTEXTS Public/Granted day:2014-09-18
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