Abstract: Systems and methods for synchronizing thread wavefronts and associated events are disclosed. According to an embodiment, a method for synchronizing one or more thread wavefronts and associated events includes inserting a first event associated with a first data output from a first thread wavefront into an event synchronizer. The event synchronizer is configured to release the first event before releasing events inserted subsequent to the first event. The method further includes releasing the first event from the event synchronizer after the first data is stored in the memory. Corresponding system and computer readable medium embodiments are also disclosed.
Type:
Grant
Filed:
November 23, 2010
Date of Patent:
June 18, 2013
Assignees:
Advanced Micro Devices, Inc., ATI Technologies ULC
Inventors:
Laurent LeFebvre, Michael Mantor, Deborah Lynne Szasz
Abstract: A semiconductor device is presented here. The semiconductor device includes an integrated inductor formed on a semiconductor substrate, a transistor arrangement formed on the semiconductor substrate to modulate loop current induced by the integrated inductor, dielectric material to insulate the integrated inductor from the transistor arrangement, and a controller coupled to the transistor arrangement. The controller is used to select conductive and nonconductive operating states of the transistor arrangement. A conductive operating state of the transistor arrangement allows formation of induced loop current in the transistor arrangement, and a nonconductive operating state of the transistor arrangement inhibits formation of induced loop current in the transistor arrangement.
Abstract: Methods and test receiver apparatus are provided for loopback testing of a unidirectional physical layer device. The disclosed methods and test receiver apparatus allow for the phase of a sampling clock implemented at the test receiver apparatus to be aligned with the phase of a test data signal.
Abstract: In a transistor, a strain-inducing semiconductor alloy, such as silicon/germanium, silicon/carbon and the like, may be positioned very close to the channel region by providing gradually shaped cavities which may then be filled with the strain-inducing semiconductor alloy. For this purpose, two or more “disposable” spacer elements of different etch behavior may be used in order to define different lateral offsets at different depths of the corresponding cavities. Consequently, enhanced uniformity and, thus, reduced transistor variability may be accomplished, even for sophisticated semiconductor devices.
Type:
Grant
Filed:
May 14, 2012
Date of Patent:
June 18, 2013
Assignee:
Advanced Micro Devices, Inc.
Inventors:
Stephan Kronholz, Vassilios Papageorgiou, Gunda Beernink
Abstract: Systems and methods for multi-precision computation are disclosed. One embodiment of the present invention includes a plurality of multiply-add units (MADDs) configured to perform one or more single precision operations and an arrangement generator to generate one or more mantissa arrangements using a plurality of double precision numbers. Each MADD is configured to receive and load said mantissa arrangements from the arrangement generator. The MADDs compute a result of a multi-precision computation using the mantissa arrangements. In an embodiment, the MADDs are configured to simultaneously perform operations that include, single precision operations, double-precision additions and double-precision multiply and additions.
Type:
Grant
Filed:
June 10, 2010
Date of Patent:
June 18, 2013
Assignee:
Advanced Micro Devices, Inc.
Inventors:
Michael J. Mantor, Jeffrey T. Brady, Daniel B. Clifton, Christopher Spencer
Abstract: Integrated circuits with memory built-in self test (MBIST) circuitry and methods are disclosed that employ enhanced features. In one aspect of the invention, MBST circuitry is used set memory elements of arrays to a first state and then to an inverse state during a burn-in operation to maintain each of the two opposing states for a desired time in order to either force a failure of the integrated circuit component or produce a pre-stressed component beyond an infancy stage. Preferably, an integrated circuit is provided having MIBST circuitry configured to serially test multiple arrays of memory elements within a component of the integrated circuit and to also conduct parallel initialization of the serially tested arrays.
Abstract: A system on a chip including a bus, a bootup module coupled to the bus and configured to cause the system on a chip to bootup in accordance with a selected security mode, an input module coupled to the bus and configured to receive an input signal and to provide the input signal to the bus, a processor coupled to the bus and configured to process the input signal to provide an intermediate signal, in accordance with a type of content protection associated with the input signal, an encryption module coupled to the bus and configured to cause at least a portion of the intermediate signal to be encrypted to produce an encrypted signal, in accordance with the type of the content protection, and an output module coupled to the bus and configured to output the encrypted signal.
Type:
Grant
Filed:
August 30, 2007
Date of Patent:
June 18, 2013
Assignee:
Advanced Micro Devices, Inc.
Inventors:
Richard K. Sita, Kunal K. Dave, Jitesh Arora, Michael J. Erwin
Abstract: A computing device initiates a transaction, corresponding to an application, which includes operations for accessing data stored in a shared memory and buffering alterations to the data as speculative alterations to the shared memory. The computing device detects a transaction abort scenario corresponding to the transaction and notifies the application regarding the transaction abort scenario. The computing device determines whether to abort the transaction based on instructions received from the application regarding the transaction abort scenario. When the transaction is to be aborted, the computing device restores the transaction to an operation prior to accessing the data stored in the shared memory and buffering alterations to the data as speculative alterations to the shared memory. When the transaction is not to be aborted, the computing device enables the transaction to continue.
Type:
Application
Filed:
December 13, 2011
Publication date:
June 13, 2013
Applicant:
ADVANCED MICRO DEVICES, INC.
Inventors:
Stephan DIESTELHORST, Martin POHLACK, Michael HOHMUTH, David CHRISTIE, Luke YEN
Abstract: In an embodiment, a method of processing memory requests in a first processing device is provided. The method includes generating a memory request associated with a memory address located in an unpinned memory space managed by an operating system running on a second processing device; and responsive to a determination that the memory address is not resident in a physical memory, transmitting a message to the second processing device. In response to the message, the operating system controls the second processing device to bring the memory address into the physical memory.
Type:
Application
Filed:
December 13, 2011
Publication date:
June 13, 2013
Applicant:
Advanced Micro Devices, Inc.
Inventors:
Warren Fritz Kruger, Philip J. Rogers, Mark Hummel
Abstract: A method and system for video processing is disclosed. A device driver interface (DDI) call for flipping or updating an overlay may be skipped or ignored, and may not be used by a user mode driver to pass overlay properties to a kernel mode driver (KMD). Instead, the overlay properties may be passed to the KMD at rendering time during a DDI call for rendering. The user mode driver may call a DDI for rendering an overlay frame while simultaneously passing the overlay property data to the KMD. The KMD may store the overlay property data in an overlay flip queue, program the overlay hardware per the overlay property data stored in the overlay flip queue, and flip the overlay in response to the vertical synchronization deferred procedure call.
Type:
Application
Filed:
December 13, 2011
Publication date:
June 13, 2013
Applicants:
ATI TECHNOLOGIES ULC, ADVANCED MICRO DEVICES, INC.
Abstract: A method and apparatus are described for processing data during an execution pipeline cycle of a processor. Valid bits of the data are generated according to a designated data size. Each of the valid bits is inserted into at least one of a plurality of bit positions. The valid bits are rotated in a predetermined direction (i.e., left or right rotation) by a designated number of bit positions. Valid bits are removed from a portion of the plurality of bit positions after being rotated. Zeros or most significant bits (MSBs) of the data may be inserted in the bit positions from which the valid bits were removed. The number of bit positions to rotate the valid bits by may be designated by a first bit subset and a second bit subset. The first bit subset may indicate a number of bytes, and the second bit subset may indicate a number of bits.
Abstract: Methods and apparatus that facilitate the relatively smooth playback of video at an altered playback speed. Video frames are scored and selected for removal (or duplication) to provide faster (or slower) playback speed based when the video is displayed at a predetermined frame rate.
Type:
Application
Filed:
December 9, 2011
Publication date:
June 13, 2013
Applicant:
ADVANCED MICRO DEVICES, INC.
Inventors:
Michael L. Schmit, Shivashankar Gurumuthy, William S. Herz
Abstract: An automated method and apparatus for automatic dialog replacement having an optional I/O interface converts an A/V stream into a format suitable for automated processing. The I/O interface feeds the A/V stream to a dubbing engine for generating new dubbed dialog from said A/V stream. A dubber/slicer replaces the original dialog with the new dubbed dialog in the A/V stream. The I/O interface then transmits the A/V stream that is enhanced with a new dubbed dialog.
Abstract: Methods and systems relating to providing constants are provided. In an embodiment, a method of providing constants in a processing device includes copying a constant of a first constant buffer to a second constant buffer, the first and second constant buffers being included in a ring of constant buffers and a size of the ring being one greater than a number of processes that the processing device can process concurrently, updating a value of the constant in the second buffer, and binding a command to be executed on the processing device to the second constant buffer.
Abstract: In one embodiment, a processor comprises a redirect unit configured to detect a match of an instruction pointer (IP) in an IP redirect table, the IP corresponding to a guest instruction that the processor has intercepted, wherein the guest is executed under control of a virtual machine monitor (VMM), and wherein the redirect unit is configured to redirect instruction fetching by the processor to a routine identified in the IP redirect table instead of exiting to the VMM in response to the intercept of the guest instruction.
Abstract: A system includes one or more processor cores, and a voltage regulator that provides an operating voltage to the one or more processor cores in response to receiving a voltage identifier signal that is indicative of the operating voltage. The system also includes a power management unit that may provide a first voltage identifier signal corresponding to a first operating voltage in response to determining that the processor cores are operating in a first operating state in which the one or more processor cores may draw up to a maximum load current. The power management unit may also provide a second voltage identifier signal corresponding to a second operating voltage, which is less than the first operating voltage, in response to determining that the processor cores are operating in a second operating state in which the processor cores are incapable of an increase in load current above a predetermined amount.
Type:
Grant
Filed:
August 31, 2010
Date of Patent:
June 11, 2013
Assignee:
Advanced Micro Devices, Inc.
Inventors:
Samuel D. Naffziger, Alexander Branover
Abstract: Techniques are disclosed relating to reducing wander created by AC couplers. In one embodiment, an integrated circuit is disclosed that includes an AC coupler and a DC-level shifter. The AC coupler is configured to receive a differential input signal at first and second nodes, and to shift a common-mode voltage of the differential input signal. The DC-level shifter is coupled to the first and second nodes, and configured to reduce wander of the AC coupler. In various embodiments, the DC-level shifter is configured to supply a differential reference signal to the AC coupler, and to create the differential reference signal from the differential input signal at the first and second nodes by changing a common-mode voltage of the differential input signal.
Abstract: A device may include a latch activated during a second phase of a clock cycle; a clock gating component to control when a clock signal is to reach the latch; a destination storage element activated during a first phase of the clock cycle, where a logical path exists from the latch to the destination storage element; and a blocking element located in the logical path from the latch to the destination storage element, where the blocking element includes, as a first input, an output of the latch and, as a second input, an output of the clock gating component, and where the blocking element prevents an output value of the latch from changing when the clock gating component is not enabled and does not prevent the output value of the latch from changing when the clock gating element is enabled.
Abstract: A complementary metal oxide semiconductor (CMOS) circuit is described. The CMOS circuit includes a plurality of CMOS gates, a plurality of logic inputs and a logic output. Each CMOS gate is connected to a negative power supply terminal (Vss) and a positive power supply terminal (Vdd). The CMOS circuit further includes parasitic nets connected to the CMOS gates, and net pulldown circuits for eliminating a charge accumulation on the parasitic nets while avoiding potential short circuit conditions. The CMOS gates may be OR-AND-INVERT (OAI) gates or AND-OR-INVERT (AOI) gates.
Abstract: The method and accompanying apparatus provides secure register access. In one example, as part of a secure boot process, data is written into a managed secure register (MSR) register and access policy data is written into programmable MSR policy registers. During run-time, the MSR register securely stores data in compliance with the programmable register access policy data. Access policy is enforced during run-time based on the programmable register access policy data.