Patents by Inventor Rajesh S. Parthasarathy
Rajesh S. Parthasarathy 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).
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Patent number: 10678712Abstract: A method is described that includes detecting that an instruction of a thread is a locked instruction. The instruction also includes determining that execution of said instruction includes imposing a bus lock. The instruction also include executing a bus lock assistance function in response to said determining, said bus lock assistance function including a function associated with said bus lock other than implementation of a bus lock protocol.Type: GrantFiled: February 11, 2019Date of Patent: June 9, 2020Assignee: Intel CorporationInventors: Robert S. Chappell, John W. Faistl, Hermann W. Gartler, Michael D. Tucknott, Rajesh S. Parthasarathy, David W. Burns
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Patent number: 10409611Abstract: An apparatus and method is described herein for providing robust speculative code section abort control mechanisms. Hardware is able to track speculative code region abort events, conditions, and/or scenarios, such as an explicit abort instruction, a data conflict, a speculative timer expiration, a disallowed instruction attribute or type, etc. And hardware, firmware, software, or a combination thereof makes an abort determination based on the tracked abort events. As an example, hardware may make an initial abort determination based on one or more predefined events or choose to pass the event information up to a firmware or software handler to make such an abort determination. Upon determining an abort of a speculative code region is to be performed, hardware, firmware, software, or a combination thereof performs the abort, which may include following a fallback path specified by hardware or software.Type: GrantFiled: December 26, 2015Date of Patent: September 10, 2019Assignee: Intel CorporationInventors: Martin G. Dixon, Ravi Rajwar, Konrad K. Lai, Robert S. Chappell, Rajesh S. Parthasarathy, Alexandre J. Farcy, Ilhyun Kim, Prakash Math, Matthew Merten, Vijaykumar Kadgi
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Patent number: 10409612Abstract: An apparatus and method is described herein for providing robust speculative code section abort control mechanisms. Hardware is able to track speculative code region abort events, conditions, and/or scenarios, such as an explicit abort instruction, a data conflict, a speculative timer expiration, a disallowed instruction attribute or type, etc. And hardware, firmware, software, or a combination thereof makes an abort determination based on the tracked abort events. As an example, hardware may make an initial abort determination based on one or more predefined events or choose to pass the event information up to a firmware or software handler to make such an abort determination. Upon determining an abort of a speculative code region is to be performed, hardware, firmware, software, or a combination thereof performs the abort, which may include following a fallback path specified by hardware or software.Type: GrantFiled: December 26, 2015Date of Patent: September 10, 2019Assignee: Intel CorporationInventors: Martin G. Dixon, Ravi Rajwar, Konrad K. Lai, Robert S. Chappell, Rajesh S. Parthasarathy, Alexandre J. Farcy, Ilhyun Kim, Prakash Math, Matthew Merten, Vijaykumar Kadgi
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Patent number: 10216650Abstract: A method is described that includes detecting that an instruction of a thread is a locked instruction. The instruction also includes determining that execution of said instruction includes imposing a bus lock. The instruction also include executing a bus lock assistance function in response to said determining, said bus lock assistance function including a function associated with said bus lock other than implementation of a bus lock protocol.Type: GrantFiled: January 29, 2018Date of Patent: February 26, 2019Assignee: Intel CorporationInventors: Robert S. Chappell, John W. Faistl, Hermann W. Gartler, Michael D. Tucknott, Rajesh S. Parthasarathy, David W. Burns
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Patent number: 10175990Abstract: According to a first aspect, efficient data transfer operations can be achieved by: decoding by a processor device, a single instruction specifying a transfer operation for a plurality of data elements between a first storage location and a second storage location; issuing the single instruction for execution by an execution unit in the processor; detecting an occurrence of an exception during execution of the single instruction; and in response to the exception, delivering pending traps or interrupts to an exception handler prior to delivering the exception.Type: GrantFiled: May 20, 2013Date of Patent: January 8, 2019Assignee: Intel CorporationInventors: Christopher J. Hughes, Yen-Kuang (Y. K.) Chen, Mayank Bomb, Jason W. Brandt, Mark J. Buxton, Mark J. Charney, Srinivas Chennupaty, Jesus Corbal, Martin G. Dixon, Milind B. Girkar, Jonathan C. Hall, Hideki (Saito) Ido, Peter Lachner, Gilbert Neiger, Chris J. Newburn, Rajesh S. Parthasarathy, Bret L. Toll, Robert Valentine, Jeffrey G. Wiedemeier
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Patent number: 10169268Abstract: In one embodiment, the present invention includes a processor that has an on-die storage such as a static random access memory to store an architectural state of one or more threads that are swapped out of architectural state storage of the processor on entry to a system management mode (SMM). In this way communication of this state information to a system management memory can be avoided, reducing latency associated with entry into SMM. Embodiments may also enable the processor to update a status of executing agents that are either in a long instruction flow or in a system management interrupt (SMI) blocked state, in order to provide an indication to agents inside the SMM. Other embodiments are described and claimed.Type: GrantFiled: September 20, 2016Date of Patent: January 1, 2019Assignee: Intel CorporationInventors: Mahesh Natu, Thanunathan Rangarajan, Gautam Doshi, Shamanna M. Datta, Baskaran Ganesan, Mohan J. Kumar, Rajesh S. Parthasarathy, Frank Binns, Rajesh Nagaraja Murthy, Robert C. Swanson
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Patent number: 10114651Abstract: According to a first aspect, efficient data transfer operations can be achieved by: decoding by a processor device, a single instruction specifying a transfer operation for a plurality of data elements between a first storage location and a second storage location; issuing the single instruction for execution by an execution unit in the processor; detecting an occurrence of an exception during execution of the single instruction; and in response to the exception, delivering pending traps or interrupts to an exception handler prior to delivering the exception.Type: GrantFiled: January 4, 2018Date of Patent: October 30, 2018Assignee: Intel CorporationInventors: Christopher J. Hughes, Yen-Kuang (Y. K.) Chen, Mayank Bomb, Jason W. Brandt, Mark J. Buxton, Mark J. Charney, Srinivas Chennupaty, Jesus Corbal, Martin G. Dixon, Milind B. Girkar, Jonathan C. Hall, Hideki (Saito) Ido, Peter Lachner, Gilbert Neiger, Chris J. Newburn, Rajesh S. Parthasarathy, Bret L. Toll, Robert Valentine, Jeffrey G. Wiedemeier
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Publication number: 20180150301Abstract: According to a first aspect, efficient data transfer operations can be achieved by: decoding by a processor device, a single instruction specifying a transfer operation for a plurality of data elements between a first storage location and a second storage location; issuing the single instruction for execution by an execution unit in the processor; detecting an occurrence of an exception during execution of the single instruction; and in response to the exception, delivering pending traps or interrupts to an exception handler prior to delivering the exception.Type: ApplicationFiled: May 20, 2013Publication date: May 31, 2018Inventors: Christopher J. Hughes, Yen-Kuang (Y.K.) Chen, Mayank Bomb, Jason W. Brandt, Mark J. Buxton, Mark J. Charney, Srinivas Chennupaty, Jesus Corbal, Martin G. Dixon, Milind B. Girkar, Jonathan C. Hall, Hideki (Saito) Ido, Peter Lachner, Gilbert Neiger, Chris J. Newburn, Rajesh S. Parthasarathy, Bret L. Toll, Robert Valentine, Jeffrey G. Wiedemeier
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Publication number: 20180143923Abstract: In one embodiment, the present invention includes a processor that has an on-die storage such as a static random access memory to store an architectural state of one or more threads that are swapped out of architectural state storage of the processor on entry to a system management mode (SMM). In this way communication of this state information to a system management memory can be avoided, reducing latency associated with entry into SMM. Embodiments may also enable the processor to update a status of executing agents that are either in a long instruction flow or in a system management interrupt (SMI) blocked state, in order to provide an indication to agents inside the SMM. Other embodiments are described and claimed.Type: ApplicationFiled: January 17, 2018Publication date: May 24, 2018Inventors: Mahesh Natu, Thanunathan Rangarajan, Gautam Doshi, Shamanna M. Datta, Baskaran Ganesan, Mohan J. Kumar, Rajesh S. Parthasarathy, Frank Binns, Rajesh Nagaraja Murthy, Robert C. Swanson
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Publication number: 20180129506Abstract: According to a first aspect, efficient data transfer operations can be achieved by: decoding by a processor device, a single instruction specifying a transfer operation for a plurality of data elements between a first storage location and a second storage location; issuing the single instruction for execution by an execution unit in the processor; detecting an occurrence of an exception during execution of the single instruction; and in response to the exception, delivering pending traps or interrupts to an exception handler prior to delivering the exception.Type: ApplicationFiled: January 4, 2018Publication date: May 10, 2018Inventors: Christopher J. Hughes, Yen-Kuang (Y.K.) Chen, Mayank Bomb, Jason W. Brandt, Mark J. Buxton, Mark J. Charney, Srinivas Chennupaty, Jesus Corbal, Martin G. Dixon, Milind B. Girkar, Jonathan C. Hall, Hideki (Saito) Ido, Peter Lachner, Gilbert Neiger, Chris J. Newburn, Rajesh S. Parthasarathy, Bret L. Toll, Robert Valentine, Jeffrey G. Wiedemeier
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Patent number: 9880948Abstract: A method is described that includes detecting that an instruction of a thread is a locked instruction. The instruction also includes determining that execution of said instruction includes imposing a bus lock. The instruction also include executing a bus lock assistance function in response to said determining, said bus lock assistance function including a function associated with said bus lock other than implementation of a bus lock protocol.Type: GrantFiled: December 19, 2016Date of Patent: January 30, 2018Assignee: INTEL CORPORATIONInventors: Robert S. Chappell, John W. Faistl, Hermann W. Gartler, Michael D. Tucknott, Rajesh S. Parthasarathy, David W. Burns
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Publication number: 20170010991Abstract: In one embodiment, the present invention includes a processor that has an on-die storage such as a static random access memory to store an architectural state of one or more threads that are swapped out of architectural state storage of the processor on entry to a system management mode (SMM). In this way communication of this state information to a system management memory can be avoided, reducing latency associated with entry into SMM. Embodiments may also enable the processor to update a status of executing agents that are either in a long instruction flow or in a system management interrupt (SMI) blocked state, in order to provide an indication to agents inside the SMM. Other embodiments are described and claimed.Type: ApplicationFiled: September 20, 2016Publication date: January 12, 2017Inventors: Mahesh Natu, Thanunathan Rangarajan, Gautam Doshi, Shamanna M. Datta, Baskaran Ganesan, Mohan J. Kumar, Rajesh S. Parthasarathy, Frank Binns, Rajesh Nagaraja Murthy, Robert C. Swanson
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Patent number: 9535744Abstract: A processor, system, and method are described for continued retirement of operations during a commit of a speculative region of program code. For example, one embodiment of a method comprises the operations of identifying a plurality of transactional memory regions in program code, including a first transactional memory region; and retiring one or more of a plurality of operations which follow the first transactional memory region even when a commit operation associated with the first transactional memory region is waiting to complete.Type: GrantFiled: June 29, 2013Date of Patent: January 3, 2017Assignee: INTEL CORPORATIONInventors: Ravi Rajwar, Matthew C. Merten, Christine E. Wang, Vijaykumar B. Kadgi, Rajesh S. Parthasarathy
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Patent number: 9465647Abstract: In one embodiment, the present invention includes a processor that has an on-die storage such as a static random access memory to store an architectural state of one or more threads that are swapped out of architectural state storage of the processor on entry to a system management mode (SMM). In this way communication of this state information to a system management memory can be avoided, reducing latency associated with entry into SMM. Embodiments may also enable the processor to update a status of executing agents that are either in a long instruction flow or in a system management interrupt (SMI) blocked state, in order to provide an indication to agents inside the SMM. Other embodiments are described and claimed.Type: GrantFiled: October 8, 2013Date of Patent: October 11, 2016Assignee: Intel CorporationInventors: Mahesh Natu, Thanunathan Rangarajan, Gautam Doshi, Shamanna M. Datta, Baskaran Ganesan, Mohan J. Kumar, Rajesh S. Parthasarathy, Frank Binns, Rajesh Nagaraja Murthy, Robert C. Swanson
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Publication number: 20160246606Abstract: An apparatus and method is described herein for providing robust speculative code section abort control mechanisms. Hardware is able to track speculative code region abort events, conditions, and/or scenarios, such as an explicit abort instruction, a data conflict, a speculative timer expiration, a disallowed instruction attribute or type, etc. And hardware, firmware, software, or a combination thereof makes an abort determination based on the tracked abort events. As an example, hardware may make an initial abort determination based on one or more predefined events or choose to pass the event information up to a firmware or software handler to make such an abort determination. Upon determining an abort of a speculative code region is to be performed, hardware, firmware, software, or a combination thereof performs the abort, which may include following a fallback path specified by hardware or software.Type: ApplicationFiled: December 26, 2015Publication date: August 25, 2016Inventors: Martin G. Dixon, Ravi Rajwar, Konrad K. Lai, Robert S. Chappell, Rajesh S. Parthasarathy, Alexandre J. Farcy, Ilhyun Kim, Prakash Math, Matthew Merten, Vijakumar Kadgi
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Publication number: 20160239304Abstract: An apparatus and method is described herein for providing robust speculative code section abort control mechanisms. Hardware is able to track speculative code region abort events, conditions, and/or scenarios, such as an explicit abort instruction, a data conflict, a speculative timer expiration, a disallowed instruction attribute or type, etc. And hardware, firmware, software, or a combination thereof makes an abort determination based on the tracked abort events. As an example, hardware may make an initial abort determination based on one or more predefined events or choose to pass the event information up to a firmware or software handler to make such an abort determination. Upon determining an abort of a speculative code region is to be performed, hardware, firmware, software, or a combination thereof performs the abort, which may include following a fallback path specified by hardware or software.Type: ApplicationFiled: December 26, 2015Publication date: August 18, 2016Inventors: Martin G. Dixon, Ravi Rajwar, Konrad K. Lai, Robert S. Chappell, Rajesh S. Parthasarathy, Alexandre J. Farcy, Ilhyun Kim, Prakash Math, Matthew Merten, Vijaykumar Kadgi
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Publication number: 20160210177Abstract: An apparatus and method is described herein for providing robust speculative code section abort control mechanisms. Hardware is able to track speculative code region abort events, conditions, and/or scenarios, such as an explicit abort instruction, a data conflict, a speculative timer expiration, a disallowed instruction attribute or type, etc. And hardware, firmware, software, or a combination thereof makes an abort determination based on the tracked abort events. As an example, hardware may make an initial abort determination based on one or more predefined events or choose to pass the event information up to a firmware or software handler to make such an abort determination. Upon determining an abort of a speculative code region is to be performed, hardware, firmware, software, or a combination thereof performs the abort, which may include following a fallback path specified by hardware or software.Type: ApplicationFiled: December 26, 2015Publication date: July 21, 2016Inventors: Martin G. Dixon, Ravi Rajwar, Konrad K. Lai, Robert S. Chappell, Rajesh S. Parthasarathy, Alexandre J. Farcy, Ilhyun Kim, Prakash Math, Matthew Merten, Vijaykumar Kadgi
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Publication number: 20160154648Abstract: An apparatus and method is described herein for providing robust speculative code section abort control mechanisms. Hardware is able to track speculative code region abort events, conditions, and/or scenarios, such as an explicit abort instruction, a data conflict, a speculative timer expiration, a disallowed instruction attribute or type, etc. And hardware, firmware, software, or a combination thereof makes an abort determination based on the tracked abort events. As an example, hardware may make an initial abort determination based on one or more predefined events or choose to pass the event information up to a firmware or software handler to make such an abort determination. Upon determining an abort of a speculative code region is to be performed, hardware, firmware, software, or a combination thereof performs the abort, which may include following a fallback path specified by hardware or software.Type: ApplicationFiled: December 26, 2015Publication date: June 2, 2016Inventors: Martin G. Dixon, Ravi Rajwar, Konrad K. Lai, Robert S. Chappell, Rajesh S. Parthasarathy, Alexandre J. Farcy, Ilhyun Kim, Prakash Math, Matthew Merten, Vijaykumar Kadgi
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Publication number: 20160132336Abstract: An apparatus and method is described herein for providing robust speculative code section abort control mechanisms. Hardware is able to track speculative code region abort events, conditions, and/or scenarios, such as an explicit abort instruction, a data conflict, a speculative timer expiration, a disallowed instruction attribute or type, etc. And hardware, firmware, software, or a combination thereof makes an abort determination based on the tracked abort events. As an example, hardware may make an initial abort determination based on one or more predefined events or choose to pass the event information up to a firmware or software handler to make such an abort determination. Upon determining an abort of a speculative code region is to be performed, hardware, firmware, software, or a combination thereof performs the abort, which may include following a fallback path specified by hardware or software.Type: ApplicationFiled: December 26, 2015Publication date: May 12, 2016Inventors: Martin G. Dixon, Ravi Rajwar, Konrad K. Lai, Robert S. Chappell, Rajesh S. Parthasarathy, Alexandre J. Farcy, Ilhyun Kim, Prakash Math, Matthew Merten, Vijaykumar Kadgi
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Publication number: 20160132335Abstract: An apparatus and method is described herein for providing robust speculative code section abort control mechanisms. Hardware is able to track speculative code region abort events, conditions, and/or scenarios, such as an explicit abort instruction, a data conflict, a speculative timer expiration, a disallowed instruction attribute or type, etc. And hardware, firmware, software, or a combination thereof makes an abort determination based on the tracked abort events. As an example, hardware may make an initial abort determination based on one or more predefined events or choose to pass the event information up to a firmware or software handler to make such an abort determination. Upon determining an abort of a speculative code region is to be performed, hardware, firmware, software, or a combination thereof performs the abort, which may include following a fallback path specified by hardware or software.Type: ApplicationFiled: December 26, 2015Publication date: May 12, 2016Inventors: Martin G. Dixon, Ravi Rajwar, Konrad K. Lai, Robert S. Chappell, Rajesh S. Parthasarathy, Alexandre J. Farcy, IIhyun Kim, Prakash Math, Matthew Merten, Vijaykumar Kadgi