公开(公告)号：US20220237123A1

公开(公告)日：2022-07-28

申请号：US17712632

申请日：2022-04-04

Applicant: Intel Corporation

Inventor： Jason W. Brandt ,  Robert S. Chappell ,  Jesus Corbal ,  Edward T. Grochowski ,  Stephen H. Gunther ,  Buford M. Guy ,  Thomas R. Huff ,  Christopher J. Hughes ,  Elmoustapha Ould-Ahmed-Vall ,  Ronak Singhal ,  Seyed Yahya Sotoudeh ,  Bret L. Toll ,  Lihu Rappoport ,  David B. Papworth ,  James D. Allen

IPC: G06F12/0831 ,  G06F12/1027 ,  G06F12/1009 ,  G06F9/30

Abstract: Embodiments of an invention a processor architecture are disclosed. In an embodiment, a processor includes a decoder, an execution unit, a coherent cache, and an interconnect. The decoder is to decode an instruction to zero a cache line. The execution unit is to issue a write command to initiate a cache line sized write of zeros. The coherent cache is to receive the write command, to determine whether there is a hit in the coherent cache and whether a cache coherency protocol state of the hit cache line is a modified state or an exclusive state, to configure a cache line to indicate all zeros, and to issue the write command toward the interconnect. The interconnect is to, responsive to receipt of the write command, issue a snoop to each of a plurality of other coherent caches for which it must be determined if there is a hit.

公开(公告)号：US11294809B2

公开(公告)日：2022-04-05

申请号：US16115067

申请日：2018-08-28

Applicant: Intel Corporation

Inventor： Jason W. Brandt ,  Robert S. Chappell ,  Jesus Corbal ,  Edward T. Grochowski ,  Stephen H. Gunther ,  Buford M. Guy ,  Thomas R. Huff ,  Christopher J. Hughes ,  Elmoustapha Ould-Ahmed-Vall ,  Ronak Singhal ,  Seyed Yahya Sotoudeh ,  Bret L. Toll ,  Lihu Rappoport ,  David Papworth ,  James D. Allen

IPC: G06F12/0831 ,  G06F12/1027 ,  G06F12/1009 ,  G06F9/30

Abstract: Embodiments of an invention a processor architecture are disclosed. In an embodiment, a processor includes a decoder, an execution unit, a coherent cache, and an interconnect. The decoder is to decode an instruction to zero a cache line. The execution unit is to issue a write command to initiate a cache line sized write of zeros. The coherent cache is to receive the write command, to determine whether there is a hit in the coherent cache and whether a cache coherency protocol state of the hit cache line is a modified state or an exclusive state, to configure a cache line to indicate all zeros, and to issue the write command toward the interconnect. The interconnect is to, responsive to receipt of the write command, issue a snoop to each of a plurality of other coherent caches for which it must be determined if there is a hit.

公开(公告)号：US10282296B2

公开(公告)日：2019-05-07

申请号：US15376647

申请日：2016-12-12

Applicant: Intel Corporation

Inventor： Jason W. Brandt ,  Robert S. Chappell ,  Jesus Corbal ,  Edward T. Grochowski ,  Stephen H. Gunther ,  Buford M. Guy ,  Thomas R. Huff ,  Elmoustapha Ould-Ahmed-Vall ,  Bret L. Toll ,  David Papworth ,  James D. Allen

IPC: G06F12/0831 ,  G06F12/1009 ,  G06F12/1027

Abstract: Embodiments of an invention a processor architecture are disclosed. In an embodiment, a processor includes a decoder, an execution unit, a coherent cache, and an interconnect. The decoder is to decode an instruction to zero a cache line. The execution unit is to issue a write command to initiate a cache line sized write of zeros. The coherent cache is to receive the write command, to determine whether there is a hit in the coherent cache and whether a cache coherency protocol state of the hit cache line is a modified state or an exclusive state, to configure a cache line to indicate all zeros, and to issue the write command toward the interconnect. The interconnect is to, responsive to receipt of the write command, issue a snoop to each of a plurality of other coherent caches for which it must be determined if there is a hit.

公开(公告)号：US12130740B2

公开(公告)日：2024-10-29

申请号：US17712632

申请日：2022-04-04

Applicant: Intel Corporation

Inventor： Jason W. Brandt ,  Robert S. Chappell ,  Jesus Corbal ,  Edward T. Grochowski ,  Stephen H. Gunther ,  Buford M. Guy ,  Thomas R. Huff ,  Christopher J. Hughes ,  Elmoustapha Ould-Ahmed-Vall ,  Ronak Singhal ,  Seyed Yahya Sotoudeh ,  Bret L. Toll ,  Lihu Rappoport ,  David B. Papworth ,  James D. Allen

IPC: G06F12/0831 ,  G06F9/30 ,  G06F9/38 ,  G06F12/1009 ,  G06F12/1027

CPC classification number: G06F12/0831 ,  G06F9/30043 ,  G06F9/384 ,  G06F12/1009 ,  G06F12/1027 ,  G06F2212/1016 ,  G06F2212/621 ,  G06F2212/68

Abstract: Embodiments of an invention a processor architecture are disclosed. In an embodiment, a processor includes a decoder, an execution unit, a coherent cache, and an interconnect. The decoder is to decode an instruction to zero a cache line. The execution unit is to issue a write command to initiate a cache line sized write of zeros. The coherent cache is to receive the write command, to determine whether there is a hit in the coherent cache and whether a cache coherency protocol state of the hit cache line is a modified state or an exclusive state, to configure a cache line to indicate all zeros, and to issue the write command toward the interconnect. The interconnect is to, responsive to receipt of the write command, issue a snoop to each of a plurality of other coherent caches for which it must be determined if there is a hit.

公开(公告)号：US20190012266A1

公开(公告)日：2019-01-10

申请号：US16115067

申请日：2018-08-28

Applicant: Intel Corporation

Inventor： Jason W. Brandt ,  Robert S. Chappell ,  Jesus Corbal ,  Edward T. Grochowski ,  Stephen H. Gunther ,  Buford M. Guy ,  Thomas R. Huff ,  Christopher J. Hughes ,  Elmoustapha Ould-Ahmed-Vall ,  Ronak Singhal ,  Seyed Yahya Sotoudeh ,  Bret L. Toll ,  Lihu Rappoport ,  David Papworth ,  James D. Allen

IPC: G06F12/0831 ,  G06F12/1027 ,  G06F12/1009

Abstract: Embodiments of an invention a processor architecture are disclosed. In an embodiment, a processor includes a decoder, an execution unit, a coherent cache, and an interconnect. The decoder is to decode an instruction to zero a cache line. The execution unit is to issue a write command to initiate a cache line sized write of zeros. The coherent cache is to receive the write command, to determine whether there is a hit in the coherent cache and whether a cache coherency protocol state of the hit cache line is a modified state or an exclusive state, to configure a cache line to indicate all zeros, and to issue the write command toward the interconnect. The interconnect is to, responsive to receipt of the write command, issue a snoop to each of a plurality of other coherent caches for which it must be determined if there is a hit.

公开(公告)号：US20180165199A1

公开(公告)日：2018-06-14

申请号：US15376647

申请日：2016-12-12

Applicant: Intel Corporation

Inventor： Jason W. Brandt ,  Robert S. Chappell ,  Jesus Corbal ,  Edward T. Grochowski ,  Stephen H. Gunther ,  Buford M. Guy ,  Thomas R. Huff ,  Christopher J. Hughes ,  Elmoustapha Ould-Ahmed-Vall ,  Ronak Singhal ,  Seyed Yahya Sotoudeh ,  Bret L. Toll ,  Lihu Rappoport ,  David Papworth ,  James D. Allen

IPC: G06F12/0831 ,  G06F12/1027 ,  G06F12/1009

CPC classification number: G06F12/0831 ,  G06F12/1009 ,  G06F12/1027 ,  G06F2212/1016 ,  G06F2212/621 ,  G06F2212/68

Abstract: Embodiments of an invention a processor architecture are disclosed. In an embodiment, a processor includes a decoder, an execution unit, a coherent cache, and an interconnect. The decoder is to decode an instruction to zero a cache line. The execution unit is to issue a write command to initiate a cache line sized write of zeros. The coherent cache is to receive the write command, to determine whether there is a hit in the coherent cache and whether a cache coherency protocol state of the hit cache line is a modified state or an exclusive state, to configure a cache line to indicate all zeros, and to issue the write command toward the interconnect. The interconnect is to, responsive to receipt of the write command, issue a snoop to each of a plurality of other coherent caches for which it must be determined if there is a hit.