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US 2026/0093887 A1Published application
Folded register file
AssigneeAdvanced Micro Devices, Inc.
InventorsEric Dixon, Christopher S. Oliver, Naveensurya Kalaivannan, Erik Swanson
Life of this patent
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Abstract
The disclosed device includes a physical register file (PRF) in a stacked die configuration. Part of the PRF can be implemented in a first die, and another part of the PRF can be implemented in a second die stacked over the first die. The stacked dies can have a similar layout to allow a simplified addressing scheme for accessing the dies of the PRF. Various other methods, systems, and computer-readable media are also disclosed.
Claims20
A device comprising:
- a physical register file (PRF) comprising:
- a first portion in a first die layer;
- and
- a second portion, in a second die layer, that is at least partially stacked over the first portion;
- and
- a control circuit configured to manage access from a logic circuit to the first portion and the second portion.
3 more elements
A system comprising:
- a memory;
- and
- a processor coupled to the memory and comprising:
- a logic circuit;
- a physical register file (PRF) configured to hold values read from the memory and comprising:
- a first portion in a first die layer;
- and
- a second portion, in a second die layer, that is at least partially stacked over the first portion;
- and
- a control circuit configured to manage access from the logic circuit to the first portion and the second portion with an addressing scheme that uses a lane value to differentiate between the first portion and the second portion.
7 more elements
A method comprising:
- receiving, by a control circuit, an access request for a physical register file (PRF) comprising a plurality of dies arranged in one or more stacks;
- and
- accessing one of the plurality of dies based on a lane value in the access request.
Dependencies are inferred from the claim text.