Patents by Inventor Sebastien Nussbaum

Sebastien Nussbaum has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10242420
    Abstract: Methods and apparatus are described. A method includes an accelerated processing device running a process. When a maximum time interval during which the process is permitted to run expires before the process completes, the accelerated processing device receives an operating-system-initiated instruction to stop running the process. The accelerated processing device stops the process from running in response to the received operating-system-initiated instruction.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: March 26, 2019
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clayton Taylor, Michael Mantor, Kevin John McGrath, Sebastien Nussbaum, Nuwan Jayasena, Rex McCrary, Mark Leather, Philip J. Rogers, Thomas Woller
  • Publication number: 20180321946
    Abstract: A method for use in a processor for arbitrating between multiple processes to select wavefronts for execution on a shader core is provided. The processor includes a compute pipeline configured to issue wavefronts to the shader core for execution, a hardware queue descriptor associated with the compute pipeline, and the shader core. The shader core is configured to execute work for the compute pipeline corresponding to a first memory queue descriptor executed using data for the first memory queue descriptor that is loaded into a first hardware queue descriptor. The processor is configured to detect a context switch condition, and, responsive to the context switch condition, perform a context switch operation including loading data for a second memory queue descriptor into the first hardware queue descriptor. The shader core is configured to execute work corresponding to the second memory queue descriptor that is loaded into the first hardware queue descriptor.
    Type: Application
    Filed: July 19, 2018
    Publication date: November 8, 2018
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Mark Leather, Michael Mantor, Rex McCrary, Sebastien Nussbaum, Philip J. Rogers, Ralph Clay Taylor, Thomas Woller
  • Publication number: 20180081830
    Abstract: A processing system includes one or more processing units, a memory including a protected region, and a hardware security module. The hardware security module is configured to selectively modify a page table stored in the protected region of the memory in response to write or modify requests from the at least one processing unit. In some variations, the hardware security module can modify the page table in response to verifying that a security criterion is met by the requested modification of the page table. The hardware security module can also access a code signature in response to a request to mark a page in the page table as eligible for execution and selectively mark the page as executable based on whether the code signature matches a signature of code stored in the page.
    Type: Application
    Filed: September 20, 2016
    Publication date: March 22, 2018
    Inventors: David Kaplan, Sebastien Nussbaum
  • Patent number: 9870473
    Abstract: The present disclosure presents methods and apparatuses for controlling a power state, which may include a C-state, of one or more processing cores of a processor. In an aspect, an example method of securing a power state change of a processor is presented, the method including the steps of receiving a power state change request from the processor, the processor having a plurality of potential power states each including an operating power profile; determining a power state change request mode associated with the processor; forwarding the power state change request to a security processor where the power state change request mode is a one-time request mode; receiving a power state change request response from the security processor in response to the request; and adjusting the current power state of the processor to the target power state where the power state change request response comprises a power state change approval.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: January 16, 2018
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Benjamin Tsien, Denis Rystsov, Sebastien Nussbaum
  • Patent number: 9710034
    Abstract: A method and apparatus using temperature margin to balance performance with power allocation. Nominal, middle and high power levels are determined for compute elements. A set of temperature thresholds are determined that drive the power allocation of the compute elements towards a balanced temperature profile. For a given workload, temperature differentials are determined for each of the compute elements relative the other compute elements, where the temperature differentials correspond to workload utilization of the compute element. If temperature overhead is available, and a compute element is below a temperature threshold, then particular compute elements are allocated power to match or drive toward the balanced temperature profile.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: July 18, 2017
    Assignee: ADVANCED MICRO DEVICES, INC.
    Inventors: Samuel D. Naffziger, Michael Osborn, Sebastien Nussbaum
  • Patent number: 9686536
    Abstract: A video device having data lanes and a method of operating the video device includes generating performance monitoring and/or debug data in response to the operation of the video device. The generated data is sampled from component of the video device operating in various clocking domain. The data sampled from the components is combined into a unified stream which is independent of the various clocking domain. The unified stream is transmitted across one more data lanes of a video link along with corresponding audio and/or video data in real time.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: June 20, 2017
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Eric Rentschler, Sebastien Nussbaum
  • Publication number: 20170076421
    Abstract: Methods and apparatus are described. A method includes an accelerated processing device running a process. When a maximum time interval during which the process is permitted to run expires before the process completes, the accelerated processing device receives an operating-system-initiated instruction to stop running the process. The accelerated processing device stops the process from running in response to the received operating-system-initiated instruction.
    Type: Application
    Filed: November 28, 2016
    Publication date: March 16, 2017
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clayton Taylor, Michael Mantor, Kevin John McGrath, Sebastien Nussbaum, Nuwan Jayasena, Rex McCrary, Mark Leather, Philip J. Rogers, Thomas Woller
  • Patent number: 9507632
    Abstract: Methods, systems, and computer readable media for preemptive context-switching of processes on an accelerated processing device are based upon a comparison of the running time of the process and a threshold time quanta. A method includes preempting a process running on an accelerated processing device based upon a running time of the process and a threshold time quanta.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: November 29, 2016
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clay Taylor, Michael Mantor, Kevin McGrath, Sebastien Nussbaum, Nuwan Jayasena, Rex McCrary, Mark Leather, Philip Rogers, Thomas Woller
  • Patent number: 9329893
    Abstract: A method resumes an accelerated processing device (APD) wavefront in which a subset of elements have faulted. A restore command for a job including a wavefront is received. A list of context states for the wavefront is read from a memory associated with a APD. An empty shell wavefront is created for restoring the list of context states. A portion of not acknowledged data is masked over a portion of acknowledged data within the restored wavefronts.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: May 3, 2016
    Assignee: ADVANCED MICRO DEVICES, INC.
    Inventors: Robert Scott Hartog, Ralph Clay Taylor, Michael Mantor, Thomas R. Woller, Kevin McGrath, Sebastien Nussbaum, Nuwan Jayasena, Rex McCrary, Philip J. Rogers, Mark Leather
  • Patent number: 9310862
    Abstract: A method and apparatus is provided for monitoring performance of an processor to detect tampering and place the processor in a safe operating state that prevents unauthorized access to contents of the processor. In one example, the method and apparatus compares a measured value of an operating parameter (i.e., a temperature, supply voltage or clock signal) to predefined limits to identify an out of limits measured value. If an out of limits measured value is detected during a normal operating mode, the processor enters a reset mode, and if an out of limits measured value is detected during power up or reset, the processor in retained a reset mode.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: April 12, 2016
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Carlin Dru Cabler, Sebastien Nussbaum, Leonard Disanza, Michael A. Nix, Stephen Kosonocky, Thomas Hirsch
  • Patent number: 9299121
    Abstract: Methods, systems, and computer readable media embodiments are disclosed for preemptive context-switching of processes running on a accelerated processing device. Embodiments include, detecting by an accelerated processing device a memory exception, and preempting a process from running on the accelerated processing device based upon the detected exception.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: March 29, 2016
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clay Taylor, Michael Mantor, Kevin McGrath, Sebastien Nussbaum, Nuwan Jayasena, Rex McCrary, Mark Leather, Philip J. Rogers, Thomas R. Woller
  • Patent number: 9256465
    Abstract: Methods, systems, and computer readable media embodiments are disclosed for preemptive context-switching of processes running on an accelerated processing device. A method includes, responsive to an exception upon access to a memory by a process running on a accelerated processing device, whether to preempt the process based on the exception, and preempting, based upon the determining, the process from running on the accelerated processing device.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: February 9, 2016
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clay Taylor, Michael Mantor, Kevin McGrath, Sebastien Nussbaum, Nuwan Jayasena, Rex McCrary, Mark Leather, Philip J. Rogers, Thomas R. Woller
  • Patent number: 9213381
    Abstract: A method of controlling voltage in a circuit is provided. Within the circuit, a block of an electrical component provides an indication that it desires to switch states (such as from off to on, on to off, or from one speed to another). The change in states requires a different current draw by the electrical component block. The indication is received by an electrical component that controls the voltage of the circuit. The electrical component that controls the voltage then issues a signal granting permission for the electrical component block to switch states. This permission signal is received by the electrical component and the electrical component block changes state.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: December 15, 2015
    Assignees: ATI Technologies ULC, Advanced Micro Devices, Inc.
    Inventors: Michael J. Osborn, Sebastien Nussbaum, John P. Petry, Umair B. Cheema
  • Publication number: 20150268707
    Abstract: A method and apparatus using temperature margin to balance performance with power allocation. Nominal, middle and high power levels are determined for compute elements. A set of temperature thresholds are determined that drive the power allocation of the compute elements towards a balanced temperature profile. For a given workload, temperature differentials are determined for each of the compute elements relative the other compute elements, where the temperature differentials correspond to workload utilization of the compute element. If temperature overhead is available, and a compute element is below a temperature threshold, then particular compute elements are allocated power to match or drive toward the balanced temperature profile.
    Type: Application
    Filed: June 8, 2015
    Publication date: September 24, 2015
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Samuel D. Naffziger, Michael Osborn, Sebastien Nussbaum
  • Patent number: 9122522
    Abstract: Embodiments describe herein provide a method of for managing task scheduling on a accelerated processing device. The method includes executing a first task within the accelerated processing device (APD), monitoring for an interruption of the execution of the first task, and switching to a second task when an interruption is detected.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: September 1, 2015
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clay Taylor, Michael Mantor, Thomas Roy Woller, Kevin McGrath, Sebastien Nussbaum, Nuwan S. Jayasena, Rex McCrary, Philip J. Rogers, Mark Leather
  • Patent number: 9052885
    Abstract: A method and apparatus using temperature margin to balance performance with power allocation. Nominal, middle and high power levels are determined for compute elements. A set of temperature thresholds are determined that drive the power allocation of the compute elements towards a balanced temperature profile. For a given workload, temperature differentials are determined for each of the compute elements relative the other compute elements, where the temperature differentials correspond to workload utilization of the compute element. If temperature overhead is available, and a compute element is below a temperature threshold, then particular compute elements are allocated power to match or drive toward the balanced temperature profile.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: June 9, 2015
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Samuel D. Naffziger, Michael Osborn, Sebastien Nussbaum
  • Publication number: 20150121520
    Abstract: The present disclosure presents methods and apparatuses for controlling a power state, which may include a C-state, of one or more processing cores of a processor. In an aspect, an example method of securing a power state change of a processor is presented, the method including the steps of receiving a power state change request from the processor, the processor having a plurality of potential power states each including an operating power profile; determining a power state change request mode associated with the processor; forwarding the power state change request to a security processor where the power state change request mode is a one-time request mode; receiving a power state change request response from the security processor in response to the request; and adjusting the current power state of the processor to the target power state where the power state change request response comprises a power state change approval.
    Type: Application
    Filed: October 31, 2014
    Publication date: April 30, 2015
    Inventors: Benjamin Tsien, Denis Rystsov, Sebastien Nussbaum
  • Patent number: 9021276
    Abstract: A method and device for setting a processor performance profile for a processor that is unable to directly measure voltage supplied by a voltage regulator includes determining a voltage requested of the voltage regulator and determining a first characteristic of a first portion of the electrical component. The first characteristic is one of power consumed by the first portion of the electrical component and load presented by the first portion of the electrical component. A first current is then determined by using the first voltage, the first characteristic, and a known relationship therebetween. A third voltage that is an estimate of the voltage supplied by the voltage regulator is then determined by comparing the first current to load line characteristics of the electrical component. The third voltage is then used to manage performance of the processor.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: April 28, 2015
    Assignee: ATI Technologies ULC
    Inventors: Michael J. Osborn, Sebastien Nussbaum, John P. Petry, Umair B. Cheema
  • Patent number: 8963933
    Abstract: The desire to use an Accelerated Processing Device (APD) for general computation has increased due to the APD's exemplary performance characteristics. However, current systems incur high overhead when dispatching work to the APD because a process cannot be efficiently identified or preempted. The occupying of the APD by a rogue process for arbitrary amounts of time can prevent the effective utilization of the available system capacity and can reduce the processing progress of the system. Embodiments described herein can overcome this deficiency by enabling the system software to pre-empt a process executing on the APD for any reason. The APD provides an interface for initiating such a pre-emption. This interface exposes an urgency of the request which determines whether the process being preempted is allowed a grace period to complete its issued work before being forced off the hardware.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: February 24, 2015
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clay Taylor, Michael Mantor, Kevin McGrath, Sebastien Nussbaum, Nuwan S. Jayasena, Rex Eldon McCrary, Mark Leather, Philip J. Rogers
  • Publication number: 20150052622
    Abstract: A method and apparatus is provided for monitoring performance of an processor to detect tampering and place the processor in a safe operating state that prevents unauthorized access to contents of the processor. In one example, the method and apparatus compares a measured value of an operating parameter (i.e., a temperature, supply voltage or clock signal) to predefined limits to identify an out of limits measured value. If an out of limits measured value is detected during a normal operating mode, the processor enters a reset mode, and if an out of limits measured value is detected during power up or reset, the processor in retained a reset mode.
    Type: Application
    Filed: May 20, 2014
    Publication date: February 19, 2015
    Applicant: Advanced Micro Device, Inc.
    Inventors: Carlin Dru Cabler, Sebastien Nussbaum, Leonard Disauza, Michael A. Nix, Stephen Kosonocky, Thomas Hirsch