公开(公告)号：US08924741B2

公开(公告)日：2014-12-30

申请号：US13731004

申请日：2012-12-29

Applicant: Intel Corporation

Inventor： Gilbert M. Wolrich ,  Vinodh Gopal ,  Kirk S. Yap

IPC: H04L29/06 ,  G06F21/60

CPC classification number: H04L9/0643 ,  G06F9/30007 ,  G06F9/30036 ,  G06F9/30145 ,  G06F9/3887 ,  G06F15/8007 ,  G06F21/602 ,  G06F21/64

Abstract: Instructions and logic provide SIMD secure hashing round slice functionality. Some embodiments include a processor comprising: a decode stage to decode an instruction for a SIMD secure hashing algorithm round slice, the instruction specifying a source data operand set, a message-plus-constant operand set, a round-slice portion of the secure hashing algorithm round, and a rotator set portion of rotate settings. Processor execution units, are responsive to the decoded instruction, to perform a secure hashing round-slice set of round iterations upon the source data operand set, applying the message-plus-constant operand set and the rotator set, and store a result of the instruction in a SIMD destination register. One embodiment of the instruction specifies a hash round type as one of four MD5 round types. Other embodiments may specify a hash round type by an immediate operand as one of three SHA-1 round types or as a SHA-2 round type.

Abstract translation: 说明和逻辑提供SIMD安全散列圆切片功能。 一些实施例包括处理器，包括：解码级，用于解码用于SIMD安全散列算法圆切片的指令，指定源数据操作数集合的指令，消息加常数操作数集合，安全散列的圆切片部分 圆周运算，旋转设定部分旋转设定。 处理器执行单元响应于解码的指令，在源数据操作数集合上执行循环迭代的安全散列圆切片集合，应用消息加常数操作数集合和旋转器集合，并且存储 SIMD目的寄存器中的指令。 该指令的一个实施例将哈希循环类型指定为四个MD5循环类型之一。 其他实施例可以通过立即操作数来指定散列循环类型，作为三种SHA-1轮型之一或SHA-2轮型。

公开(公告)号：US20140122839A1

公开(公告)日：2014-05-01

申请号：US13997186

申请日：2011-12-22

Applicant: INTEL CORPORATION

Inventor： Gilbert M. Wolrich ,  Kirk S. Yap ,  James D. Guilford ,  Erdinc Ozturk ,  Vinodh Gopal ,  Wajdi K. Feghali ,  Sean M. Gulley ,  Martin G. Dixon

IPC: G06F9/30

CPC classification number: G06F9/30029 ,  G06F9/30007 ,  G06F9/30018 ,  G06F9/30036 ,  G06F9/3885 ,  G06F9/3895 ,  H04L9/0643

Abstract: An apparatus is described that includes an execution unit within an instruction pipeline. The execution unit has multiple stages of a circuit that includes a) and b) as follows. a) a first logic circuitry section having multiple mix logic sections each having: i) a first input to receive a first quad word and a second input to receive a second quad word; ii) an adder having a pair of inputs that are respectively coupled to the first and second inputs; iii) a rotator having a respective input coupled to the second input; iv) an XOR gate having a first input coupled to an output of the adder and a second input coupled to an output of the rotator. b) permute logic circuitry having inputs coupled to the respective adder and XOR gate outputs of the multiple mix logic sections.

Abstract translation: 描述了包括指令流水线内的执行单元的装置。 执行单元具有包括a）和b）的电路的多个级，如下所述。 a）具有多个混合逻辑部分的第一逻辑电路部分，每个混合逻辑部分具有：i）用于接收第一四进制字的第一输入和用于接收第二四字的第二输入; ii）具有分别耦合到第一和第二输入的一对输入的加法器; iii）具有耦合到第二输入的相应输入的旋转器; iv）具有耦合到加法器的输出的第一输入和耦合到转子的输出的第二输入的异或门。 b）具有耦合到多个混合逻辑部分的相应加法器和异或门输出的输入的置换逻辑电路。

公开(公告)号：US12182018B2

公开(公告)日：2024-12-31

申请号：US17133615

申请日：2020-12-23

Applicant: Intel Corporation

Inventor： Jayesh Gaur ,  Adarsh Chauhan ,  Vinodh Gopal ,  Vedvyas Shanbhogue ,  Sreenivas Subramoney ,  Wajdi Feghali

IPC: G06F12/0811 ,  G06F9/38 ,  G06F12/0862 ,  G06F12/0895

Abstract: Methods and apparatus relating to an instruction and/or micro-architecture support for decompression on core are described. In an embodiment, decode circuitry decodes a decompression instruction into a first micro operation and a second micro operation. The first micro operation causes one or more load operations to fetch data into one or more cachelines of a cache of a processor core. Decompression Engine (DE) circuitry decompresses the fetched data from the one or more cachelines of the cache of the processor core in response to the second micro operation. Other embodiments are also disclosed and claimed.

公开(公告)号：US12130738B2

公开(公告)日：2024-10-29

申请号：US17130632

申请日：2020-12-22

Applicant: Intel Corporation

Inventor： Vedvyas Shanbhogue ,  Jayesh Gaur ,  Wajdi K. Feghali ,  Vinodh Gopal ,  Utkarsh Kakaiya

IPC: G06F12/0802 ,  H03M7/30

CPC classification number: G06F12/0802 ,  H03M7/60 ,  G06F2212/401 ,  G06F2212/60

Abstract: An embodiment of an integrated circuit may comprise, coupled to a core, a hardware decompression accelerator, a compressed cache, a processor and communicatively coupled to the hardware decompression accelerator and the compressed cache, and memory and communicatively coupled to the processor, wherein the memory stores microcode instructions which when executed by the processor causes the processor to store a first address to a decompression work descriptor, retrieve a second address where a compressed page is stored in the compressed cache from the decompression work descriptor at the first address in response to an indication of a page fault, and send instructions to the hardware decompression accelerator to decompress the compressed page at the second address. Other embodiments are disclosed and claimed.

公开(公告)号：US12028094B2

公开(公告)日：2024-07-02

申请号：US17133622

申请日：2020-12-23

Applicant: Intel Corporation

Inventor： Jayesh Gaur ,  Adarsh Chauhan ,  Vinodh Gopal ,  Vedvyas Shanbhogue ,  Sreenivas Subramoney ,  Wajdi Feghali

IPC: H03M7/00 ,  G06F9/38 ,  G06F9/54 ,  H03M7/30

CPC classification number: H03M7/6029 ,  G06F9/3877 ,  G06F9/541

Abstract: Methods and apparatus relating to an Application Programming Interface (API) for fine grained low latency decompression within a processor core are described. In an embodiment, a decompression Application Programming Interface (API) receives an input handle to a data object. The data object includes compressed data and metadata. Decompression Engine (DE) circuitry decompresses the compressed data to generate uncompressed data. The DE circuitry decompress the compressed data in response to invocation of a decompression instruction by the decompression API. The metadata comprises a first operand to indicate a location of the compressed data, a second operand to indicate a size of the compressed data, a third operand to indicate a location to which decompressed data by the DE circuitry is to be stored, and a fourth operand to indicate a size of the decompressed data. Other embodiments are also disclosed and claimed.

公开(公告)号：US20230297389A1

公开(公告)日：2023-09-21

申请号：US17695533

申请日：2022-03-15

Applicant: Intel Corporation

Inventor： Fabian Boemer ,  Vinodh Gopal

IPC: G06F9/38 ,  G06F9/30

CPC classification number: G06F9/3893 ,  G06F9/3001

Abstract: An embodiment of an apparatus comprises decode circuitry to decode a single instruction, the single instruction to include respective fields for one or more source operands, one or more destination operands, and an opcode, the opcode to indicate execution circuitry is to perform a fused addition and subtraction operation, and execution circuitry to execute the decoded instruction according to the opcode to retrieve data from one or more locations indicated by the one or more source operands, to perform the fused addition and subtraction operation indicated by the opcode on three or more arguments indicated by the retrieved data to produce one or more results. Other embodiments are disclosed and claimed.

公开(公告)号：US11681530B2

公开(公告)日：2023-06-20

申请号：US17688728

申请日：2022-03-07

Applicant: Intel Corporation

Inventor： Regev Shemy ,  Zeev Sperber ,  Wajdi Feghali ,  Vinodh Gopal ,  Amit Gradstein ,  Simon Rubanovich ,  Sean Gulley ,  Ilya Albrekht ,  Jacob Doweck ,  Jose Yallouz ,  Ittai Anati

IPC: G06F9/30 ,  G06F9/38 ,  H04L9/06

CPC classification number: G06F9/30145 ,  G06F9/30043 ,  G06F9/30196 ,  G06F9/3887 ,  H04L9/0643

Abstract: Systems, methods, and apparatuses relating to performing hashing operations on packed data elements are described. In one embodiment, a processor includes a decode circuit to decode a single instruction into a decoded single instruction, the single instruction including at least one first field that identifies eight 32-bit state elements A, B, C, D, E, F, G, and H for a round according to a SM3 hashing standard and at least one second field that identifies an input message; and an execution circuit to execute the decoded single instruction to: rotate state element C left by 9 bits to form a rotated state element C, rotate state element D left by 9 bits to form a rotated state element D, rotate state element G left by 19 bits to form a rotated state element G, rotate state element H left by 19 bits to form a rotated state element H, perform two rounds according to the SM3 hashing standard on the input message and state element A, state element B, rotated state element C, rotated state element D, state element E, state element F, rotated state element G, and rotated state element H to generate an updated state element A, an updated state element B, an updated state element E, and an updated state element F, and store the updated state element A, the updated state element B, the updated state element E, and the updated state element F into a location specified by the single instruction.

公开(公告)号：US20230136291A1

公开(公告)日：2023-05-04

申请号：US17514549

申请日：2021-10-29

Applicant: Intel Corporation

Inventor： Fabian Boemer ,  Vinodh Gopal ,  Gelila Seifu ,  Sejun Kim ,  Jack Crawford

IPC: G06F9/30 ,  G06F7/544 ,  G06F7/523

Abstract: A processor includes an instruction set architecture that having instructions to perform data parallel multiply on a set of 52-bit integers and further instructions that additionally perform an add or subtract on intermediate products of the data parallel multiply. A 52-bit result of the operations is then zero extended to 64-bits.

公开(公告)号：US20230100586A1

公开(公告)日：2023-03-30

申请号：US17484840

申请日：2021-09-24

Applicant: Intel Corporation

Inventor： Utkarsh Y. Kakaiya ,  Vinodh Gopal

IPC: G06F9/48 ,  G06F9/30

Abstract: Systems, methods, and apparatuses for accelerating streaming data-transformation operations are described. In one example, a system on a chip (SoC) includes a hardware processor core comprising a decoder circuit to decode an instruction comprising an opcode into a decoded instruction, the opcode to indicate an execution circuit is to generate a single descriptor and cause the single descriptor to be sent to an accelerator circuit coupled to the hardware processor core, and the execution circuit to execute the decoded instruction according to the opcode; and the accelerator circuit comprising a work dispatcher circuit and one or more work execution circuits to, in response to the single descriptor sent from the hardware processor core: when a field of the single descriptor is a first value, cause a single job to be sent by the work dispatcher circuit to a single work execution circuit of the one or more work execution circuits to perform an operation indicated in the single descriptor to generate an output, and when the field of the single descriptor is a second different value, cause a plurality of jobs to be sent by the work dispatcher circuit to the one or more work execution circuits to perform the operation indicated in the single descriptor to generate the output as a single stream.

公开(公告)号：US20230075667A1

公开(公告)日：2023-03-09

申请号：US17470089

申请日：2021-09-09

Applicant: Intel Corporation

Inventor： Vinodh Gopal ,  James D. Guilford ,  Daniel F. Cutter

IPC: G06F9/30 ,  G06F9/38 ,  G06F9/50 ,  H03M13/09

Abstract: Methods and apparatus relating to verifying a compressed stream fused with copy or transform operation(s) are described. In an embodiment, compression logic circuitry compresses input data and stores the compressed data in a temporary buffer. The compression logic circuitry determines a first checksum value corresponding to the compressed data stored in the temporary buffer. Decompression logic circuitry performs a decompress-verify operation and a copy operation. The decompress-verify operation decompresses the compressed data stored in the temporary buffer to determine a second checksum value corresponding to the decompressed data from the temporary buffer. The copy operation transfers the compressed data from the temporary buffer to a destination buffer in response to a match between the first checksum value and the second checksum value. Other embodiments are also disclosed and claimed.