Active bridge chiplet with integrated cache

    公开(公告)号:US11507527B2

    公开(公告)日:2022-11-22

    申请号:US16585452

    申请日:2019-09-27

    Abstract: A chiplet system includes a central processing unit (CPU) communicably coupled to a first GPU chiplet of a GPU chiplet array. The GPU chiplet array includes the first GPU chiplet communicably coupled to the CPU via a bus and a second GPU chiplet communicably coupled to the first GPU chiplet via an active bridge chiplet. The active bridge chiplet is an active silicon die that bridges GPU chiplets and allows partitioning of systems-on-a-chip (SoC) functionality into smaller functional chiplet groupings.

    Data flow in a distributed graphics processing unit architecture

    公开(公告)号:US11232622B2

    公开(公告)日:2022-01-25

    申请号:US16698624

    申请日:2019-11-27

    Abstract: An apparatus includes a command buffer configured to temporarily store commands. The apparatus also includes processing units disposed at a substrate. The processing units are configured to access a plurality of copies of a command from the command buffer. The processing units include first processing units (such as fixed function hardware blocks) to perform geometry operations indicated by the command on a set of primitives. The geometry operations are performed concurrently by the first processing units. The processing units also include second processing units (such as shaders) to process mutually exclusive sets of pixels generated by rasterizing the set of primitives. The apparatus also includes a cache to temporarily store the pixels after shading by the shaders. The processing units stop or interrupt processing commands in response to detecting a synchronization point and resume processing the commands in response to all the processing units completing commands before synchronization point.

    Texture residency checks using compression metadata

    公开(公告)号:US10783694B2

    公开(公告)日:2020-09-22

    申请号:US15687108

    申请日:2017-08-25

    Abstract: A pipeline is configured to access a memory that stores a texture block and metadata that encodes compression parameters of the texture block and a residency status of the texture block. A processor requests access to the metadata in conjunction with requesting data in the texture block to perform a shading operation. The pipeline selectively returns the data in the texture block to the processor depending on whether the metadata indicates that the texture block is resident in the memory. A cache can also be included to store a copy of the metadata that encodes the compression parameters of the texture block. The residency status and the metadata stored in the cache can be modified in response to requests to access the metadata stored in the cache.

    Temporal foveated rendering using motion estimation

    公开(公告)号:US10169843B1

    公开(公告)日:2019-01-01

    申请号:US15818072

    申请日:2017-11-20

    Abstract: A processing system selectively renders pixels or blocks of pixels of an image and leaves some pixels or blocks of pixels unrendered to conserve resources. The processing system generates a motion vector field to identify regions of an image having moving areas. The processing system uses a rendering processor to identify as regions of interest those units having little to no motion, based on the motion vector field, and a large amount of edge activity, and to minimize the probability of unrendered pixels, or “holes”, in these regions. To avoid noticeable patterns, the rendering processor applies a probability map to determine the possible locations of holes, assigning to each unit a probability indicating the percentage of pixels within the unit that will be holes, and assigning a lower probability to units identified as regions of interest.

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