Invention Grant
- Patent Title: Suspend and restore processor operations
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Application No.: US15438466Application Date: 2017-02-21
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Publication No.: US10558489B2Publication Date: 2020-02-11
- Inventor: Alexander Fuad Ashkar , Michael J. Mantor , Randy Wayne Ramsey , Rex Eldon McCrary , Harry J. Wise
- Applicant: Advanced Micro Devices, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Meyertons Hood Kivlin Kowert and Goetzel PC
- Agent Rory D. Rankin
- Main IPC: G06F9/48
- IPC: G06F9/48 ; G06F9/46

Abstract:
Systems, apparatuses, and methods for suspending and restoring operations on a processor are disclosed. In one embodiment, a processor includes at least a control unit, multiple execution units, and multiple work creation units. In response to detecting a request to suspend a software application executing on the processor, the control unit sends requests to the plurality of work creation units to stop creating new work. The control unit waits until receiving acknowledgements from the work creation units prior to initiating a suspend operation. Once all work creation units have acknowledged that they have stopped creating new work, the control unit initiates the suspend operation. Also, when a restore operation is initiated, the control unit prevents any work creation units from launching new work-items until all previously in-flight work-items have been restored to the same work creation units and execution units to which they were previously allocated.
Public/Granted literature
- US20180239635A1 SUSPEND AND RESTORE PROCESSOR OPERATIONS Public/Granted day:2018-08-23
Information query