JP4699666B2 - インデックスおよび任意選択的ウェイ一致に基づいてデータをフォワードするストアバッファ - Google Patents

インデックスおよび任意選択的ウェイ一致に基づいてデータをフォワードするストアバッファ Download PDF

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Publication number
JP4699666B2
JP4699666B2 JP2001536680A JP2001536680A JP4699666B2 JP 4699666 B2 JP4699666 B2 JP 4699666B2 JP 2001536680 A JP2001536680 A JP 2001536680A JP 2001536680 A JP2001536680 A JP 2001536680A JP 4699666 B2 JP4699666 B2 JP 4699666B2
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Prior art keywords
store
load
data
address
hit
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Expired - Lifetime
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Japanese (ja)
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JP2003514299A (ja
JP2003514299A5 (enExample
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ヒューズ，ウィリアム・エイ
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Advanced Micro Devices Inc
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Advanced Micro Devices Inc
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Publication of JP2003514299A5 publication Critical patent/JP2003514299A5/ja
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3824—Operand accessing
    • G06F9/3826—Bypassing or forwarding of data results, e.g. locally between pipeline stages or within a pipeline stage
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/40—Transformation of program code
    • G06F8/41—Compilation
    • G06F8/44—Encoding
    • G06F8/443—Optimisation
    • G06F8/4441—Reducing the execution time required by the program code
    • G06F8/4442—Reducing the number of cache misses; Data prefetching
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3824—Operand accessing
    • G06F9/3834—Maintaining memory consistency
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3836—Instruction issuing, e.g. dynamic instruction scheduling or out of order instruction execution
    • G06F9/3842—Speculative instruction execution
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3861—Recovery, e.g. branch miss-prediction, exception handling
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/60—Details of cache memory
    • G06F2212/608—Details relating to cache mapping
    • G06F2212/6082—Way prediction in set-associative cache

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Advance Control (AREA)
JP2001536680A 1999-11-10 2000-04-20 インデックスおよび任意選択的ウェイ一致に基づいてデータをフォワードするストアバッファ Expired - Lifetime JP4699666B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US16452699P 1999-11-10 1999-11-10
US60/164,526 1999-11-10
US09/482,399 2000-01-12
US09/482,399 US6662280B1 (en) 1999-11-10 2000-01-12 Store buffer which forwards data based on index and optional way match
PCT/US2000/010961 WO2001035212A1 (en) 1999-11-10 2000-04-20 Store buffer which forwards data based on index and optional way match

Publications (3)

Publication Number Publication Date
JP2003514299A JP2003514299A (ja) 2003-04-15
JP2003514299A5 JP2003514299A5 (enExample) 2011-02-24
JP4699666B2 true JP4699666B2 (ja) 2011-06-15

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JP2001536680A Expired - Lifetime JP4699666B2 (ja) 1999-11-10 2000-04-20 インデックスおよび任意選択的ウェイ一致に基づいてデータをフォワードするストアバッファ

Country Status (7)

Country Link
US (1) US6662280B1 (enExample)
EP (1) EP1228426B1 (enExample)
JP (1) JP4699666B2 (enExample)
KR (1) KR100708010B1 (enExample)
DE (1) DE60025028T2 (enExample)
TW (1) TW548548B (enExample)
WO (1) WO2001035212A1 (enExample)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7065632B1 (en) * 2000-04-07 2006-06-20 Ip First Llc Method and apparatus for speculatively forwarding storehit data in a hierarchical manner
JP3727244B2 (ja) * 2001-01-30 2005-12-14 Ｎｅｃエレクトロニクス株式会社 キャッシュシステムの制御回路
US6845233B2 (en) * 2001-10-09 2005-01-18 Freescale Semiconductor, Inc. RF receivers with reduced spurious response for mobile stations and methods therefor
US6735604B2 (en) * 2001-10-09 2004-05-11 Arthur O. Miller Method for storing and retrieving data objects
US6842822B2 (en) * 2002-04-05 2005-01-11 Freescale Semiconductor, Inc. System and method for cache external writing
US7028166B2 (en) * 2002-04-30 2006-04-11 Advanced Micro Devices, Inc. System and method for linking speculative results of load operations to register values
US6845442B1 (en) 2002-04-30 2005-01-18 Advanced Micro Devices, Inc. System and method of using speculative operand sources in order to speculatively bypass load-store operations
US7222226B1 (en) 2002-04-30 2007-05-22 Advanced Micro Devices, Inc. System and method for modifying a load operation to include a register-to-register move operation in order to forward speculative load results to a dependent operation
US7114043B2 (en) * 2002-05-15 2006-09-26 Broadcom Corporation Ambiguous virtual channels
US7471675B2 (en) * 2002-07-12 2008-12-30 Intel Corporation Arrangements facilitating ordered transactions
US7089400B1 (en) 2002-08-29 2006-08-08 Advanced Micro Devices, Inc. Data speculation based on stack-relative addressing patterns
US7024537B2 (en) 2003-01-21 2006-04-04 Advanced Micro Devices, Inc. Data speculation based on addressing patterns identifying dual-purpose register
US7321964B2 (en) * 2003-07-08 2008-01-22 Advanced Micro Devices, Inc. Store-to-load forwarding buffer using indexed lookup
US7181590B2 (en) * 2003-08-28 2007-02-20 Intel Corporation Method for page sharing in a processor with multiple threads and pre-validated caches
EP1719290A1 (en) * 2004-02-27 2006-11-08 Actix Limited Data storage and processing systems
US7263600B2 (en) * 2004-05-05 2007-08-28 Advanced Micro Devices, Inc. System and method for validating a memory file that links speculative results of load operations to register values
US7937569B1 (en) 2004-05-05 2011-05-03 Advanced Micro Devices, Inc. System and method for scheduling operations using speculative data operands
US8775740B2 (en) * 2004-08-30 2014-07-08 Texas Instruments Incorporated System and method for high performance, power efficient store buffer forwarding
US7464242B2 (en) * 2005-02-03 2008-12-09 International Business Machines Corporation Method of load/store dependencies detection with dynamically changing address length
US7533237B1 (en) 2006-05-11 2009-05-12 Nvidia Corporation Off-chip memory allocation for a unified shader
US7533236B1 (en) * 2006-05-11 2009-05-12 Nvidia Corporation Off-chip out of order memory allocation for a unified shader
US7600097B1 (en) * 2006-09-05 2009-10-06 Sun Microsystems, Inc. Detecting raw hazards in an object-addressed memory hierarchy by comparing an object identifier and offset for a load instruction to object identifiers and offsets in a store queue
US7594100B2 (en) 2006-09-29 2009-09-22 Sun Microsystems, Inc. Efficient store queue architecture
US7603527B2 (en) * 2006-09-29 2009-10-13 Intel Corporation Resolving false dependencies of speculative load instructions
US7721066B2 (en) * 2007-06-05 2010-05-18 Apple Inc. Efficient encoding for detecting load dependency on store with misalignment
US8468306B2 (en) * 2008-02-15 2013-06-18 International Business Machines Corporation Microprocessor and method for deferred store data forwarding for store background data in a system with no memory model restrictions
US8214602B2 (en) * 2008-06-23 2012-07-03 Advanced Micro Devices, Inc. Efficient load queue snooping
US8468325B2 (en) 2009-12-22 2013-06-18 International Business Machines Corporation Predicting and avoiding operand-store-compare hazards in out-of-order microprocessors
US8521992B2 (en) * 2009-12-22 2013-08-27 International Business Machines Corporation Predicting and avoiding operand-store-compare hazards in out-of-order microprocessors
US8601240B2 (en) * 2010-05-04 2013-12-03 Oracle International Corporation Selectively defering load instructions after encountering a store instruction with an unknown destination address during speculative execution
US8626963B2 (en) 2010-05-04 2014-01-07 Mediatek Inc. Packet based data transfer system and method for host-slave interface
US8904153B2 (en) * 2010-09-07 2014-12-02 International Business Machines Corporation Vector loads with multiple vector elements from a same cache line in a scattered load operation
US20120144118A1 (en) * 2010-12-07 2012-06-07 Advanced Micro Devices, Inc. Method and apparatus for selectively performing explicit and implicit data line reads on an individual sub-cache basis
US9152570B2 (en) * 2012-02-27 2015-10-06 Vmware, Inc. System and method for supporting finer-grained copy-on-write page sizes
US9996348B2 (en) * 2012-06-14 2018-06-12 Apple Inc. Zero cycle load
US8984254B2 (en) * 2012-09-28 2015-03-17 Freescale Semiconductor, Inc. Techniques for utilizing translation lookaside buffer entry numbers to improve processor performance
US9116817B2 (en) * 2013-05-09 2015-08-25 Apple Inc. Pointer chasing prediction
US9632947B2 (en) * 2013-08-19 2017-04-25 Intel Corporation Systems and methods for acquiring data for loads at different access times from hierarchical sources using a load queue as a temporary storage buffer and completing the load early
GB2521227B (en) * 2013-12-16 2020-11-25 Advanced Risc Mach Ltd Invalidation of index items for a temporary data store
US9418018B2 (en) 2013-12-31 2016-08-16 Samsung Electronics Co., Ltd. Efficient fill-buffer data forwarding supporting high frequencies
JP6340894B2 (ja) * 2014-04-24 2018-06-13 富士通株式会社 演算処理装置および演算処理装置の制御方法
US9710268B2 (en) 2014-04-29 2017-07-18 Apple Inc. Reducing latency for pointer chasing loads
US11068271B2 (en) 2014-07-28 2021-07-20 Apple Inc. Zero cycle move using free list counts
US9483409B2 (en) 2015-02-05 2016-11-01 International Business Machines Corporation Store forwarding cache
US9996356B2 (en) * 2015-12-26 2018-06-12 Intel Corporation Method and apparatus for recovering from bad store-to-load forwarding in an out-of-order processor
CN111782577B (zh) 2019-04-04 2023-03-24 安徽寒武纪信息科技有限公司 数据处理装置及方法以及相关产品
KR102579192B1 (ko) * 2019-04-04 2023-09-14 캠브리콘 테크놀로지스 코퍼레이션 리미티드 데이터 처리방법과 장치 및 관련 제품
CN111831337B (zh) 2019-04-19 2022-11-29 安徽寒武纪信息科技有限公司 数据同步方法及装置以及相关产品
TWI714116B (zh) * 2019-06-05 2020-12-21 大陸商合肥沛睿微電子股份有限公司 記憶體控制器、記憶體控制方法、以及電腦系統
US11200062B2 (en) 2019-08-26 2021-12-14 Apple Inc. History file for previous register mapping storage and last reference indication
US11416254B2 (en) 2019-12-05 2022-08-16 Apple Inc. Zero cycle load bypass in a decode group
US11579884B2 (en) * 2020-06-26 2023-02-14 Advanced Micro Devices, Inc. Instruction address translation and caching for primary and alternate branch prediction paths
US12079129B2 (en) 2021-05-07 2024-09-03 Ventana Micro Systems Inc. Using physical address proxies to accomplish penalty-less processing of load/store instructions whose data straddles cache line address boundaries
US12093179B2 (en) 2021-05-07 2024-09-17 Ventana Micro Systems Inc. Store-to-load forwarding correctness checks using physical address proxies stored in load queue entries
US11989285B2 (en) 2021-05-07 2024-05-21 Ventana Micro Systems Inc. Thwarting store-to-load forwarding side channel attacks by pre-forwarding matching of physical address proxies and/or permission checking
US11397686B1 (en) * 2021-05-07 2022-07-26 Ventana Micro Systems Inc. Store-to-load forwarding using physical address proxies to identify candidate set of store queue entries
US12487939B1 (en) 2021-05-07 2025-12-02 Ventana Micro Systems Inc. Virtually-indexed cache coherency using physical address proxies
US11989286B2 (en) 2021-05-07 2024-05-21 Ventana Micro Systems Inc. Conditioning store-to-load forwarding (STLF) on past observations of STLF propriety
US11481332B1 (en) 2021-05-07 2022-10-25 Ventana Micro Systems Inc. Write combining using physical address proxies stored in a write combine buffer
US12079126B2 (en) 2021-05-07 2024-09-03 Ventana Micro Systems Inc. Unforwardable load instruction re-execution eligibility based on cache update by identified store instruction
US11860794B2 (en) 2021-05-07 2024-01-02 Ventana Micro Systems Inc. Generational physical address proxies
US12182019B2 (en) 2021-05-07 2024-12-31 Ventana Micro Systems Inc. Microprocessor that prevents same address load-load ordering violations using physical address proxies
US11841802B2 (en) 2021-05-07 2023-12-12 Ventana Micro Systems Inc. Microprocessor that prevents same address load-load ordering violations
US12099448B2 (en) 2021-05-07 2024-09-24 Ventana Micro Systems Inc. Virtually-indexed cache coherency using physical address proxies
US12073220B2 (en) 2021-05-07 2024-08-27 Ventana Micro Systems Inc. Store-to-load forwarding correctness checks at store instruction commit
US11416400B1 (en) 2021-05-07 2022-08-16 Ventana Micro Systems Inc. Hardware cache coherency using physical address proxies
US12487936B1 (en) 2021-05-07 2025-12-02 Ventana Micro Systems Inc. Store-to-load forwarding correctness checks using physical address proxies stored in load queue entries
US11416406B1 (en) 2021-05-07 2022-08-16 Ventana Micro Systems Inc. Store-to-load forwarding using physical address proxies stored in store queue entries
US11836080B2 (en) 2021-05-07 2023-12-05 Ventana Micro Systems Inc. Physical address proxy (PAP) residency determination for reduction of PAP reuse
US12086063B2 (en) 2021-05-07 2024-09-10 Ventana Micro Systems Inc. Physical address proxy reuse management
US11868263B2 (en) 2021-05-07 2024-01-09 Ventana Micro Systems Inc. Using physical address proxies to handle synonyms when writing store data to a virtually-indexed cache
TW202331504A (zh) * 2021-12-21 2023-08-01 美商賽發馥股份有限公司 處理器管線之儲存-載入轉送

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5276828A (en) 1989-03-01 1994-01-04 Digital Equipment Corporation Methods of maintaining cache coherence and processor synchronization in a multiprocessor system using send and receive instructions
US5487156A (en) 1989-12-15 1996-01-23 Popescu; Valeri Processor architecture having independently fetching issuing and updating operations of instructions which are sequentially assigned and stored in order fetched
JP2645163B2 (ja) * 1990-03-13 1997-08-25 三菱電機株式会社 非接触型ｉｃカード
US5440752A (en) 1991-07-08 1995-08-08 Seiko Epson Corporation Microprocessor architecture with a switch network for data transfer between cache, memory port, and IOU
JP3199465B2 (ja) 1992-07-22 2001-08-20 株式会社日立製作所 情報処理装置
WO1994008287A1 (en) 1992-09-29 1994-04-14 Seiko Epson Corporation System and method for handling load and/or store operations in a superscalar microprocessor
IE80854B1 (en) 1993-08-26 1999-04-07 Intel Corp Processor ordering consistency for a processor performing out-of-order instruction execution
US5878245A (en) 1993-10-29 1999-03-02 Advanced Micro Devices, Inc. High performance load/store functional unit and data cache
US5666537A (en) * 1994-08-12 1997-09-09 Intel Corporation Power down scheme for idle processor components
US6216200B1 (en) 1994-10-14 2001-04-10 Mips Technologies, Inc. Address queue
US5887152A (en) 1995-04-12 1999-03-23 Advanced Micro Devices, Inc. Load/store unit with multiple oldest outstanding instruction pointers for completing store and load/store miss instructions
US5832297A (en) 1995-04-12 1998-11-03 Advanced Micro Devices, Inc. Superscalar microprocessor load/store unit employing a unified buffer and separate pointers for load and store operations
US5802588A (en) 1995-04-12 1998-09-01 Advanced Micro Devices, Inc. Load/store unit implementing non-blocking loads for a superscalar microprocessor and method of selecting loads in a non-blocking fashion from a load/store buffer
US5848433A (en) * 1995-04-12 1998-12-08 Advanced Micro Devices Way prediction unit and a method for operating the same
US5625835A (en) 1995-05-10 1997-04-29 International Business Machines Corporation Method and apparatus for reordering memory operations in a superscalar or very long instruction word processor
US5761712A (en) 1995-06-07 1998-06-02 Advanced Micro Devices Data memory unit and method for storing data into a lockable cache in one clock cycle by previewing the tag array
US5652859A (en) 1995-08-17 1997-07-29 Institute For The Development Of Emerging Architectures, L.L.C. Method and apparatus for handling snoops in multiprocessor caches having internal buffer queues
US5987561A (en) * 1995-08-31 1999-11-16 Advanced Micro Devices, Inc. Superscalar microprocessor employing a data cache capable of performing store accesses in a single clock cycle
US5751983A (en) 1995-10-03 1998-05-12 Abramson; Jeffrey M. Out-of-order processor with a memory subsystem which handles speculatively dispatched load operations
US5781790A (en) 1995-12-29 1998-07-14 Intel Corporation Method and apparatus for performing floating point to integer transfers and vice versa
US5742791A (en) 1996-02-14 1998-04-21 Advanced Micro Devices, Inc. Apparatus for detecting updates to instructions which are within an instruction processing pipeline of a microprocessor
DE69638271D1 (de) * 1996-07-16 2010-11-18 Globalfoundries Inc Ladespeichereinheit und verfahren zur blockierungfreien beendigung von ladebefehlen in einem superskalaren mikroprozessor
US5768555A (en) 1997-02-20 1998-06-16 Advanced Micro Devices, Inc. Reorder buffer employing last in buffer and last in line bits
US6021485A (en) 1997-04-10 2000-02-01 International Business Machines Corporation Forwarding store instruction result to load instruction with reduced stall or flushing by effective/real data address bytes matching
US6065103A (en) 1997-12-16 2000-05-16 Advanced Micro Devices, Inc. Speculative store buffer
US6266744B1 (en) * 1999-05-18 2001-07-24 Advanced Micro Devices, Inc. Store to load forwarding using a dependency link file
FR2804819B1 (fr) * 2000-02-03 2002-05-03 Gemplus Card Int Gestion de temps au niveau communication pour entite du type carte a puce
JP2001266094A (ja) * 2000-03-15 2001-09-28 Toshiba Corp 非接触通信装置及び非接触通信装置の制御方法
US20020166075A1 (en) * 2001-05-04 2002-11-07 Sanjay Agarwal Low power interface between a control processor and a digital signal processing coprocessor

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Publication number Publication date
KR100708010B1 (ko) 2007-04-16
TW548548B (en) 2003-08-21
DE60025028D1 (de) 2006-01-26
US6662280B1 (en) 2003-12-09
EP1228426A1 (en) 2002-08-07
WO2001035212A1 (en) 2001-05-17
JP2003514299A (ja) 2003-04-15
DE60025028T2 (de) 2006-08-24
EP1228426B1 (en) 2005-12-21
KR20020087929A (ko) 2002-11-23

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