公开(公告)号：US20200272597A1

公开(公告)日：2020-08-27

申请号：US16286170

申请日：2019-02-26

Applicant: Apple Inc.

Inventor： Aditya Kesiraju ,  Andrew J. Beaumont-Smith ,  Boris S. Alvarez-Heredia ,  Pradeep Kanapathipillai ,  Ran A. Chachick ,  Srikanth Balasubramanian

IPC: G06F15/80 ,  G06F9/38 ,  G06F7/57 ,  G06F7/544

Abstract: In an embodiment, a coprocessor may include a bypass indication which identifies execution circuitry that is not used by a given processor instruction, and thus may be bypassed. The corresponding circuitry may be disabled during execution, preventing evaluation when the output of the circuitry will not be used for the instruction. In another embodiment, the coprocessor may implement a grid of processing elements in rows and columns, where a given coprocessor instruction may specify an operation that causes up to all of the processing elements to operate on vectors of input operands to produce results. Implementations of the coprocessor may implement a portion of the processing elements. The coprocessor control circuitry may be designed to operate with the full grid or partial grid, reissuing instructions in the partial grid case to perform the requested operation. In still another embodiment, the coprocessor may be able to fuse vector mode operations.

公开(公告)号：US20200218327A1

公开(公告)日：2020-07-09

申请号：US16238984

申请日：2019-01-03

Applicant: Apple Inc.

Inventor： Daniel U. Becker ,  Aditya Kesiraju ,  Srikanth Balasubramanian ,  Venkatram Krishnaswamy ,  Boris S. Alvarez-Heredia

IPC: G06F1/329

Abstract: In an embodiment, a power control circuit for an execute circuit is configured to monitor power consumption of operations in a pipeline of the execute circuit and potential changes in power consumption if new operations are issued into the pipeline. The power control circuit may be configured to inhibit issuance of a given operation if the change in power consumption is greater than a maximum increase. A decaying average of previous power consumptions may be maintained and compared to the potential increase in power consumption to control the rate of change in power consumption over time.