Intel Corporation

Itay Franko

Efraim Rotem

Eliezer Weissmann

Nadav Shulman

Michael T Klinglesmith

David M Lee

Mohan Nair

Tal Kuzi

Jawad Haj-Yihia

Chih-Cheh Chen

Amit Gur

Peter J Elardo

Vijay S R Degalahal

John Zulauf

Ohad Falik

Robert W Strong

Nimrod Diamant

Anshuman Thakur

Christopher Van Beek

Chris Van Beek

Methods and apparatus relating to autonomous C state mechanism and computational engine alignment for improved processor power efficiency. are described. An embodiment determines whether a semiconductor package should enter a package C state based on energy consumption values for entry into and exit from the package C state, an amount of time the semiconductor package stayed in the package C state previously, and one or more breakeven time points between the various package C states. Another embodiment detects a delay by an imaging computational unit of a processor to enter a low power consumption state relative to one or more other computational units of the processor. The logic causes the imaging computational unit to enter the low power consumption state in response to detection of the delay. Other embodiments are also disclosed and claimed.

Autonomous C-state algorithm and computational engine alignment for improved processor power efficiency

Disclosed is an address translation system. The processor includes a first address translator circuit and a second address translator circuit, coupled to a first functional unit and a second functional unit, respectively. The first address translator circuit translates a first original address to a first translated address and the second address translator translates a second original address to a second translated address as first-level address translation services (ATSs). An arbiter circuit is coupled between the first and second address translator circuits and a memory management circuit. The memory management circuit translates addresses as a second-level ATS when requested by at least one of the first address translator circuit or the second address translator circuit.

Multi-source address translation service (ATS) with a single ATS resource

Disclosed is an address translation system. The apparatus includes a memory management unit (MMU) that is operable to receive a translation request for an original address and translate the original address to a translated address as a second-level address translation service (ATS). The apparatus also includes an address translator having an associated cache to store the original address and the first translated address. The address translator is to translate memory addresses as a first-level address translation service (ATS). The address translator determines whether the transaction is to be processed using either the first-level ATS or the second-level ATS. The address translator translates a current memory address of the transaction to a current translated address using the first-level ATS or the second-level ATS based on the determination, The address translator also dispatches the transaction with the current translated address to a memory device where it may be further processed.

A mechanism is described for facilitating efficient operations paths for storage devices in computing systems according to one embodiment of the invention. A method of embodiments of the invention includes identifying a request for power mode change at a storage device at a computing system. The request for power mode change indicates potential reduced power state of the storage device. The method may further include transferring context information at the storage device to a host memory at the computing system, in response to the first command, and saving the context information at the host memory, wherein the storage device is at reduced power state.

Mechanism for facilitating efficient operations paths for storage devices in computing systems

Devices and method with hardware configured to support phantom register programming. Where phantom register programming allows a device driver for an endpoint device to program multicast registers in the device without support of the operating system.

Multicast support on a switch for PCIe endpoint devices

A graphics processing system with multiple graphics processing cores (GPC)s is disclosed. The apparatus can include a peripheral component interface express (PCIe) switch to interface the GPCs to a host processor. The apparatus can also include a transparent bus to connect the GPCs. The transparent bus can be implemented with two PCIe endpoints on each side of a nontransparent bridge where these three components provide a bus interconnect and a control line interconnect between the GPCs. Other embodiments are also disclosed.

Methods and apparatuses for configuring and operating graphics processing units

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Folsom, CA, United States of America

Itay Franko