Patents by Inventor David Gotwalt

David Gotwalt 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: 10970223
    Abstract: Systems, apparatuses, and methods for efficiently allocating data in a cache are described. In various embodiments, a processor decodes an indication in a software application identifying a temporal data set. The data set is flagged with a data set identifier (DSID) indicating temporal data to drop after consumption. When the data set is allocated in a cache, the data set is stored with a non-replaceable attribute to prevent a cache replacement policy from evicting the data set before it is dropped. A drop command with an indication of the DSID of the data set is later issued after the data set is read (consumed). A copy of the data set is not written back to the lower-level memory although the data set is removed from the cache. An interrupt is generated to notify firmware or other software of the completion of the drop command.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: April 6, 2021
    Assignee: Apple Inc.
    Inventors: Wolfgang H. Klingauf, Kenneth C. Dyke, Karthik Ramani, Winnie W. Yeung, Anthony P. DeLaurier, Luc R. Semeria, David A. Gotwalt, Srinivasa Rangan Sridharan, Muditha Kanchana
  • Publication number: 20190266102
    Abstract: Systems, apparatuses, and methods for efficiently allocating data in a cache are described. In various embodiments, a processor decodes an indication in a software application identifying a temporal data set. The data set is flagged with a data set identifier (DSID) indicating temporal data to drop after consumption. When the data set is allocated in a cache, the data set is stored with a non-replaceable attribute to prevent a cache replacement policy from evicting the data set before it is dropped. A drop command with an indication of the DSID of the data set is later issued after the data set is read (consumed). A copy of the data set is not written back to the lower-level memory although the data set is removed from the cache. An interrupt is generated to notify firmware or other software of the completion of the drop command.
    Type: Application
    Filed: May 13, 2019
    Publication date: August 29, 2019
    Inventors: Wolfgang H. Klingauf, Kenneth C. Dyke, Karthik Ramani, Winnie W. Yeung, Anthony P. DeLaurier, Luc R. Semeria, David A. Gotwalt, Srinivasa Rangan Sridharan, Muditha Kanchana
  • Patent number: 10289565
    Abstract: Systems, apparatuses, and methods for efficiently allocating data in a cache are described. In various embodiments, a processor decodes an indication in a software application identifying a temporal data set. The data set is flagged with a data set identifier (DSID) indicating temporal data to drop after consumption. When the data set is allocated in a cache, the data set is stored with a non-replaceable attribute to prevent a cache replacement policy from evicting the data set before it is dropped. A drop command with an indication of the DSID of the data set is later issued after the data set is read (consumed). A copy of the data set is not written back to the lower-level memory although the data set is removed from the cache. An interrupt is generated to notify firmware or other software of the completion of the drop command.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 14, 2019
    Assignee: Apple Inc.
    Inventors: Wolfgang H. Klingauf, Kenneth C. Dyke, Karthik Ramani, Winnie W. Yeung, Anthony P. DeLaurier, Luc R. Semeria, David A. Gotwalt, Srinivasa Rangan Sridharan, Muditha Kanchana
  • Publication number: 20180349291
    Abstract: Systems, apparatuses, and methods for efficiently allocating data in a cache are described. In various embodiments, a processor decodes an indication in a software application identifying a temporal data set. The data set is flagged with a data set identifier (DSID) indicating temporal data to drop after consumption. When the data set is allocated in a cache, the data set is stored with a non-replaceable attribute to prevent a cache replacement policy from evicting the data set before it is dropped. A drop command with an indication of the DSID of the data set is later issued after the data set is read (consumed). A copy of the data set is not written back to the lower-level memory although the data set is removed from the cache. An interrupt is generated to notify firmware or other software of the completion of the drop command.
    Type: Application
    Filed: May 31, 2017
    Publication date: December 6, 2018
    Inventors: Wolfgang H. Klingauf, Kenneth C. Dyke, Karthik Ramani, Winnie W. Yeung, Anthony P. DeLaurier, Luc R. Semeria, David A. Gotwalt, Srinivasa Rangan Sridharan, Muditha Kanchana
  • Patent number: 10078882
    Abstract: A method of processing commands is provided. The method includes holding commands in queues and executing the commands in an order based on their respective priority. Commands having the same priority are held in the same queue.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 18, 2018
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Philip J. Rogers, David Gotwalt, Tom Frisinger, Rex McCrary
  • Publication number: 20180181491
    Abstract: Techniques are disclosed relating to flushing cache lines. In some embodiments, a graphics processing unit includes a cache and one or more storage elements configured to store a plurality of command buffers that include instructions executable to manipulate data stored in the cache. In some embodiments, ones of the cache lines in the cache are configured to store data to be operated on by instructions in the command buffers and a first tag portion that identifies a command buffer that has stored data in the cache line. In some embodiments, the graphics processing unit is configured to receive a request to flush cache lines that store data of a particular command buffer, and to flush ones of the cache lines having first tag portions indicating the particular command buffer as having data stored in the cache lines while maintaining data stored in other ones of the cache lines as valid.
    Type: Application
    Filed: December 22, 2016
    Publication date: June 28, 2018
    Inventors: Anthony P. DeLaurier, Luc R. Semeria, Gokhan Avkarogullari, David A. Gotwalt, Robert S. Hartog, Michael J. Swift
  • Publication number: 20170053377
    Abstract: A method of processing commands is provided. The method includes holding commands in queues and executing the commands in an order based on their respective priority. Commands having the same priority are held in the same queue.
    Type: Application
    Filed: November 8, 2016
    Publication date: February 23, 2017
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Philip J. Rogers, David Gotwalt, Tom Frisinger, Rex McCrary
  • Patent number: 9519943
    Abstract: A method of processing commands is provided. The method includes holding commands in queues and executing the commands in an order based on their respective priority. Commands having the same priority are held in the same queue.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: December 13, 2016
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Philip J. Rogers, David Gotwalt, Tom Frisinger, Rex McCrary
  • Patent number: 9489313
    Abstract: The present disclosure provides for systems and methods to process a non-resident page that may include attempting to access the non-resident page, an address for the non-resident page pointing to a memory page containing default values, determining that the non-resident page should not cause a page fault based on an indicator indicating that a particular non-resident page should not generate a page fault, returning an indication that a memory read did not translate and returning the default value when the access of the non-resident page is a read and the non-resident page should not cause a page fault. Another example may discontinue a write when the access of the non-resident page is a write and the non-resident page should not cause a page fault.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: November 8, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: David A. Gotwalt, Thomas Edwin Frisinger, Andrew Evan Gruber, Eric Demers, Colin Christopher Sharp
  • Publication number: 20150089146
    Abstract: The present disclosure provides for systems and methods to process a non-resident page that may include attempting to access the non-resident page, an address for the non-resident page pointing to a memory page containing default values, determining that the non-resident page should not cause a page fault based on an indicator indicating that a particular non-resident page should not generate a page fault, returning an indication that a memory read did not translate and returning the default value when the access of the non-resident page is a read and the non-resident page should not cause a page fault. Another example may discontinue a write when the access of the non-resident page is a write and the non-resident page should not cause a page fault.
    Type: Application
    Filed: September 24, 2013
    Publication date: March 26, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: David A. Gotwalt, Thomas Edwin Frisinger, Andrew Evan Gruber, Eric Demers, Colin Christopher Sharp
  • Patent number: 8427486
    Abstract: A multiprocessor system includes a plurality of special purpose processors that perform different portions of a related processing task. A set of commands that cause each of the processors to perform the portions of the related task are distributed, and the set of commands includes a predicated execution command that precedes other commands within the set of commands. It is determined whether commands subsequent to the predicated execution command are intended to be executed by a first processor or a second processor based on information in the predicated execution command and the set of commands includes all commands to be executed by each processor.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 23, 2013
    Assignee: ATI Technologies ULC
    Inventors: Timothy M. Kelley, Jonathan L. Campbell, David A. Gotwalt
  • Patent number: 8305380
    Abstract: A method of managing resources is provided. The method includes identifying a resource associated with a processor responsive to an impending transition, and copying the identified resource from a memory associated with the GPU or to the memory associated with the GPU.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: November 6, 2012
    Assignees: Advanced Micro Devices, Inc., ATI Technologies UTC
    Inventors: David Gotwalt, Oleksandr Khodorkovsky
  • Patent number: 8217950
    Abstract: A processing unit, method, and graphics processing system are provided for processing a plurality of frames of graphics data. For instance, the processing unit can include a first plurality of graphics processing units (GPUs), a second plurality of GPUs, and a plurality of compositors. The first plurality of GPUs can be configured to process a first frame of graphics data. Likewise, the second plurality of GPUs can be configured to process a second frame of graphics data. Further, each compositor in the plurality of compositors can be coupled to a respective GPU from the first and second pluralities of GPUs, where the plurality of compositors is configured to sequentially pass the first and second frames of graphics data to a display module.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: July 10, 2012
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Rajabali M. Koduri, David Gotwalt, Andrew Pomianowski
  • Publication number: 20120147015
    Abstract: A method, computer program product, and computing system are provided for processing a graphics operation. For instance, the method can include receiving the graphics operation from an application. The method can also include allocating a first portion of the graphics operation to a first processing unit and a second portion of the graphics operation to a second processing unit. This allocation between the first and second processing units can be based on at least one of a performance profile and a functionality profile of the first and second processing units.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 14, 2012
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Philip J. Rogers, David A. Gotwalt
  • Publication number: 20120139930
    Abstract: A method of processing commands is provided. The method includes holding commands in queues and executing the commands in an order based on their respective priority. Commands having the same priority are held in the same queue.
    Type: Application
    Filed: June 29, 2011
    Publication date: June 7, 2012
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Philip J. Rogers, David Gotwalt, Tom Frisinger, Rex McCrary
  • Publication number: 20120098840
    Abstract: A multiprocessor system includes a plurality of special purpose processors that perform different portions of a related processing task. A set of commands that cause each of the processors to perform the portions of the related task are distributed, and the set of commands includes a predicated execution command that precedes other commands within the set of commands. It is determined whether commands subsequent to the predicated execution command are intended to be executed by a first processor or a second processor based on information in the predicated execution command and the set of commands includes all commands to be executed by each processor.
    Type: Application
    Filed: September 23, 2011
    Publication date: April 26, 2012
    Applicant: ATI TECHNOLOGIES, INC.
    Inventors: Timothy M. Kelley, Jonathan L. Campbell, David A. Gotwalt
  • Patent number: 8054314
    Abstract: A system and method for applying non-homogeneous properties to multiple video processing units (VPUs) in a multiple VPU system are described. Respective VPUs in the system cooperate to produce a frame to be displayed. In various embodiments, data output by different VPUs in the system is combined, or merged, or composited to produce a frame to be displayed. In load balancing modes, each VPU in the system performs different tasks as part of rendering a same frame, and therefore typically executes different commands. In various embodiments, efficiency of the system is enhanced by forming a single command buffer for execution by all of the VPUs in the system even though each VPU may have a different set of commands to execute in the command buffer.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: November 8, 2011
    Assignee: ATI Technologies, Inc.
    Inventors: Timothy M. Kelley, Jonathan L. Campbell, David A. Gotwalt
  • Publication number: 20110057936
    Abstract: A method of managing resources is provided. The method includes identifying a resource associated with a processor responsive to an impending transition, and copying the identified resource from a memory associated with the GPU or to the memory associated with the GPU.
    Type: Application
    Filed: January 28, 2010
    Publication date: March 10, 2011
    Applicants: Advanced Micro Devices, Inc., ATI Technologies ULC
    Inventors: David GOTWALT, Oleksandr Khodorkovsky
  • Publication number: 20100053176
    Abstract: A processing unit, method, and graphics processing system are provided for processing a plurality of frames of graphics data. For instance, the processing unit can include a first plurality of graphics processing units (GPUs), a second plurality of GPUs, and a plurality of compositors. The first plurality of GPUs can be configured to process a first frame of graphics data. Likewise, the second plurality of GPUs can be configured to process a second frame of graphics data. Further, each compositor in the plurality of compositors can be coupled to a respective GPU from the first and second pluralities of GPUs, where the plurality of compositors is configured to sequentially pass the first and second frames of graphics data to a display module.
    Type: Application
    Filed: September 2, 2009
    Publication date: March 4, 2010
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Rajabali M. Koduri, David Gotwalt, Andrew Pomianowski
  • Publication number: 20060267992
    Abstract: A system and method for applying non-homogeneous properties to multiple video processing units (VPUs) in a multiple VPU system are described. Respective VPUs in the system cooperate to produce a frame to be displayed. In various embodiments, data output by different VPUs in the system is combined, or merged, or composited to produce a frame to be displayed. In load balancing modes, each VPU in the system performs different tasks as part of rendering a same frame, and therefore typically executes different commands. In various embodiments, efficiency of the system is enhanced by forming a single command buffer for execution by all of the VPUs in the system even though each VPU may have a different set of commands to execute in the command buffer.
    Type: Application
    Filed: May 27, 2005
    Publication date: November 30, 2006
    Inventors: Timothy Kelley, Jonathan Campbell, David Gotwalt