公开(公告)号：US10032242B2

公开(公告)日：2018-07-24

申请号：US14043411

申请日：2013-10-01

Applicant: NVIDIA Corporation

Inventor： Ziyad S. Hakura ,  Jeffrey A. Bolz ,  Amanpreet Grewal ,  Matthew Johnson ,  Andrei Khodakovsky

IPC: G06T1/20

Abstract: A method for managing bind-render-target commands in a tile-based architecture. The method includes receiving a requested set of bound render targets and a draw command. The method also includes, upon receiving the draw command, determining whether a current set of bound render targets includes each of the render targets identified in the requested set. The method further includes, if the current set does not include each render target identified in the requested set, then issuing a flush-tiling-unit-command to a parallel processing subsystem, modifying the current set to include each render target identified in the requested set, and issuing bind-render-target commands identifying the requested set to the tile-based architecture for processing. The method further includes, if the current set of render targets includes each render target identified in the requested set, then not issuing the flush-tiling-unit-command.

公开(公告)号：US20150109315A1

公开(公告)日：2015-04-23

申请号：US14061693

申请日：2013-10-23

Applicant: NVIDIA Corporation

Inventor： Amanpreet Grewal ,  Andrei Khodakovsky ,  Yu Denny Dong ,  Henry Packard Moreton ,  Naveen Leekha

IPC: G06T1/60 ,  G06F12/10

CPC classification number: G06F12/1009 ,  G06F12/0207 ,  G06F2212/657 ,  G06T15/005 ,  G06T15/04

Abstract: A system, method, and computer program product are provided for mapping tiles to physical memory locations. In use, a plurality of virtual tiles associated with a texture is identified. Additionally, a request to perform a mapping of the plurality of virtual tiles to one or more physical memory locations is received. Further, the plurality of virtual tiles is mapped to the one or more physical memory locations, utilizing a page table.

Abstract translation: 提供了一种系统，方法和计算机程序产品，用于将瓦片映射到物理内存位置。 在使用中，识别与纹理相关联的多个虚拟瓦片。 另外，接收执行将多个虚拟瓦片映射到一个或多个物理存储器位置的请求。 此外，利用页表将多个虚拟瓦片映射到一个或多个物理存储器位置。

公开(公告)号：US09754561B2

公开(公告)日：2017-09-05

申请号：US14046064

申请日：2013-10-04

Applicant: NVIDIA CORPORATION

Inventor： Jonathan Dunaisky ,  Henry Packard Moreton ,  Jeffrey A. Bolz ,  Yury Y. Uralsky ,  James Leroy Deming ,  Rui M. Bastos ,  Patrick R. Brown ,  Amanpreet Grewal ,  Christian Amsinck ,  Poornachandra Rao ,  Jerome F. Duluk, Jr. ,  Andrew J. Tao

IPC: G06T1/60 ,  G06F12/08 ,  G06F12/10 ,  G09G5/39 ,  G06F12/0897 ,  G06F12/1027

CPC classification number: G09G5/39 ,  G06F12/0897 ,  G06F12/1027 ,  G06T1/60

Abstract: One embodiment of the present invention includes a memory management unit (MMU) that is configured to manage sparse mappings. The MMU processes requests to translate virtual addresses to physical addresses based on page table entries (PTEs) that indicate a sparse status. If the MMU determines that the PTE does not include a mapping from a virtual address to a physical address, then the MMU responds to the request based on the sparse status. If the sparse status is active, then the MMU determines the physical address based on whether the type of the request is a write operation and, subsequently, generates an acknowledgement of the request. By contrast, if the sparse status is not active, then the MMU generates a page fault. Advantageously, the disclosed embodiments enable the computer system to manage sparse mappings without incurring the performance degradation associated with both page faults and conventional software-based sparse mapping management.