公开(公告)号：US11954788B2

公开(公告)日：2024-04-09

申请号：US17564112

申请日：2021-12-28

Applicant: Advanced Micro Devices, Inc.

Inventor： Fataneh F. Ghodrat ,  Jeffrey Christopher Allan ,  Skyler Jonathon Saleh

IPC: G06T15/06 ,  G06T1/20 ,  G06T15/08 ,  G06T17/10

CPC classification number: G06T15/06 ,  G06T1/20 ,  G06T15/08 ,  G06T17/10 ,  G06T2210/12 ,  G06T2210/21

Abstract: A technique for performing ray tracing operations is provided. The technique includes processing small bounding box nodes in a box intersection test circuit to generate intersection test results for the small bounding box nodes; and processing large bounding box nodes in the box intersection test circuit to generate intersection test results for the large bounding box nodes.

公开(公告)号：US20240232079A9

公开(公告)日：2024-07-11

申请号：US18494179

申请日：2023-10-25

Applicant: Advanced Micro Devices, Inc.

Inventor： Jeffrey Christopher Allan

IPC: G06F12/0802 ,  G06T9/00

CPC classification number: G06F12/0802 ,  G06T9/00 ,  G06F2212/401

Abstract: Data routing for efficient decompressor use is described. In accordance with the described techniques, a cache controller receives requests from multiple requestors for elements of data stored in a compressed format in a cache. The requests include at least a first request from a first requestor and a second request from a second requestor. A decompression routing system identifies a redundant element of data requested by both the first requestor and the second requestor and causes decompressors to decompress the requested elements of data. The decompression includes performing a single decompression of the redundant element. After the decompression, the decompression routing system routes the decompressed elements to the plurality of requestors, which includes routing the decompressed redundant element to both the first requestor and the second requestor.

公开(公告)号：US11836088B2

公开(公告)日：2023-12-05

申请号：US17557793

申请日：2021-12-21

Applicant: Advanced Micro Devices, Inc.

Inventor： Jeffrey Christopher Allan

IPC: G06F12/08 ,  G06F12/0893

CPC classification number: G06F12/0893 ,  G06F2212/6042

Abstract: Guided cache replacement is described. In accordance with the described techniques, a request to access a cache is received, and a cache replacement policy which controls loading data into the cache is accessed. The cache replacement policy includes a tree structure having nodes corresponding to cachelines of the cache and a traversal algorithm controlling traversal of the tree structure to select one of the cachelines. Traversal of the tree structure is guided using the traversal algorithm to select a cacheline to allocate to the request. The guided traversal modifies at least one decision of the traversal algorithm to avoid selection of a non-replaceable cacheline.

公开(公告)号：US20230195640A1

公开(公告)日：2023-06-22

申请号：US17557731

申请日：2021-12-21

Applicant: Advanced Micro Devices, Inc.

Inventor： Jeffrey Christopher Allan

IPC: G06F12/0893 ,  G06F12/0864

CPC classification number: G06F12/0893 ,  G06F12/0864 ,  G06F2212/604

Abstract: Cache associativity allocation is described. In accordance with the described techniques, a portion of associativity of a cache is allocated to a category of cache requests. The portion of associativity corresponds to a subset of cachelines of the cache. A request is received to access the cache, and a cacheline of the subset of cachelines is allocated to the request based on a category associated with the request. Data corresponding to the request is loaded into the cacheline of the subset of cachelines.

公开(公告)号：US11829190B2

公开(公告)日：2023-11-28

申请号：US17557815

申请日：2021-12-21

Applicant: Advanced Micro Devices, Inc.

Inventor： Jeffrey Christopher Allan

IPC: G06F12/08 ,  G06F12/0802 ,  G06T9/00

CPC classification number: G06F12/0802 ,  G06T9/00 ,  G06F2212/401

Abstract: Data routing for efficient decompressor use is described. In accordance with the described techniques, a cache controller receives requests from multiple requestors for elements of data stored in a compressed format in a cache. The requests include at least a first request from a first requestor and a second request from a second requestor. A decompression routing system identifies a redundant element of data requested by both the first requestor and the second requestor and causes decompressors to decompress the requested elements of data. The decompression includes performing a single decompression of the redundant element. After the decompression, the decompression routing system routes the decompressed elements to the plurality of requestors, which includes routing the decompressed redundant element to both the first requestor and the second requestor.

公开(公告)号：US20230206542A1

公开(公告)日：2023-06-29

申请号：US17564112

申请日：2021-12-28

Applicant: Advanced Micro Devices, Inc.

Inventor： Fataneh F. Ghodrat ,  Jeffrey Christopher Allan ,  Skyler Jonathon Saleh

IPC: G06T15/06 ,  G06T15/08 ,  G06T17/10 ,  G06T1/20

CPC classification number: G06T15/06 ,  G06T15/08 ,  G06T17/10 ,  G06T1/20 ,  G06T2210/12 ,  G06T2210/21

Abstract: A technique for performing ray tracing operations is provided. The technique includes processing small bounding box nodes in a box intersection test circuit to generate intersection test results for the small bounding box nodes; and processing large bounding box nodes in the box intersection test circuit to generate intersection test results for the large bounding box nodes.

公开(公告)号：US12159341B2

公开(公告)日：2024-12-03

申请号：US17564103

申请日：2021-12-28

Applicant: Advanced Micro Devices, Inc.

Inventor： Skyler Jonathon Saleh ,  Fataneh F. Ghodrat ,  Jeffrey Christopher Allan

IPC: G06T15/06 ,  G06T1/20 ,  G06T15/08 ,  G06T17/10

Abstract: A technique for performing ray tracing operations is provided. The technique includes traversing through a bounding volume hierarchy to an instance node; performing an instance node transform using common circuitry; traversing to a leaf node of the bounding volume hierarchy; and performing an intersection test for the leaf node using the common circuitry.

公开(公告)号：US20240134793A1

公开(公告)日：2024-04-25

申请号：US18494179

申请日：2023-10-24

Applicant: Advanced Micro Devices, Inc.

Inventor： Jeffrey Christopher Allan

IPC: G06F12/0802 ,  G06T9/00

CPC classification number: G06F12/0802 ,  G06T9/00 ,  G06F2212/401

Abstract: Data routing for efficient decompressor use is described. In accordance with the described techniques, a cache controller receives requests from multiple requestors for elements of data stored in a compressed format in a cache. The requests include at least a first request from a first requestor and a second request from a second requestor. A decompression routing system identifies a redundant element of data requested by both the first requestor and the second requestor and causes decompressors to decompress the requested elements of data. The decompression includes performing a single decompression of the redundant element. After the decompression, the decompression routing system routes the decompressed elements to the plurality of requestors, which includes routing the decompressed redundant element to both the first requestor and the second requestor.

公开(公告)号：US20230206541A1

公开(公告)日：2023-06-29

申请号：US17564103

申请日：2021-12-28

Applicant: Advanced Micro Devices, Inc.

Inventor： Skyler Jonathon Saleh ,  Fataneh F. Ghodrat ,  Jeffrey Christopher Allan

IPC: G06T15/06 ,  G06T15/08 ,  G06T17/10 ,  G06T1/20

CPC classification number: G06T15/06 ,  G06T15/08 ,  G06T17/10 ,  G06T1/20 ,  G06T2210/21

Abstract: A technique for performing ray tracing operations is provided. The technique includes traversing through a bounding volume hierarchy to an instance node; performing an instance node transform using common circuitry; traversing to a leaf node of the bounding volume hierarchy; and performing an intersection test for the leaf node using the common circuitry.

公开(公告)号：US20230195641A1

公开(公告)日：2023-06-22

申请号：US17557793

申请日：2021-12-21

Applicant: Advanced Micro Devices, Inc.

Inventor： Jeffrey Christopher Allan

IPC: G06F12/0893

CPC classification number: G06F12/0893 ,  G06F2212/6042

Abstract: Guided cache replacement is described. In accordance with the described techniques, a request to access a cache is received, and a cache replacement policy which controls loading data into the cache is accessed. The cache replacement policy includes a tree structure having nodes corresponding to cachelines of the cache and a traversal algorithm controlling traversal of the tree structure to select one of the cachelines. Traversal of the tree structure is guided using the traversal algorithm to select a cacheline to allocate to the request. The guided traversal modifies at least one decision of the traversal algorithm to avoid selection of a non-replaceable cacheline.