Abstract:
Following a restart or a reboot of a system that includes a multi-core processor, the multi-core processor may assign one of the cores as a boot strap processor (BSP). Initialization logic may detect a state of each of the plurality of processing cores as active or inactive. The initialization logic may detect an attribute of each of the plurality of processing cores as eligible to be assigned as a BSP or as ineligible to be assigned as the BSP. The initialization logic may detect a last processing core of the plurality of processing cores in the interconnect that is an active processing core based at least in part on the state and is eligible to be assigned as the BSP based at least in part on the attribute. In various embodiments, the initialization information may assign the last processing core as the BSP.
Abstract:
Computers for supporting multiple virtual reality (VR) display devices and related methods are described herein. An example computer includes a graphics processing unit (GPU) to render frames for a first VR display device and a second VR display device, a memory to store frames rendered by the GPU for the first VR display device and the second VR display device, and a vertical synchronization (VSYNC) scheduler to transmit alternating first and second VSYNC signals to the GPU such that a time period between each of the first or second VSYNC signals and a subsequent one of the first or second VSYNC signals is substantially the same. The GPU is to, based on the first and second VSYNC signals, alternate between rendering a frame for the first VR display device and a frame for the second VR display device.
Abstract:
An extendable imager configured to capture an image responsive to a command from a mobile device and an arm coupled to the imager, the arm configured to extend the imager from a surface of the mobile device.
Abstract:
A processor having a system on a chip (SOC) architecture comprises one or more central processing units (CPUs) comprising multiple cores. An optical Compute Express Link (CXL) communication path incorporating a logical optical CXL protocol stack path transmits and receives an optical bit stream directly after the link layer, bypassing multiple levels of the CXL protocol stack. A CXL interface controller is connected to the one or more CPUs to enable communication between the CPUs and one or more CXL devices over the optical CXL communication path.
Abstract:
This disclosure is directed to use of shared initialization and configuration vectors, which are delivered to processing cores in a multi-core processor using packets. An initialization core may include reset logic that may read initialization and configuration vectors from a centralized storage location, which may be on a die containing the processing cores (e.g., a fuse, etc.), off the die (e.g., in volatile memory, flash memory, etc.), or a combination of both. The initialization core may then generate packets to transmit the initialization and configuration vectors to processing cores that await initialization (e.g., following a reset). In some instances, the initialization and configuration vector information may be shared by two or more cores of a same type.
Abstract:
An initialization core may include reset logic that may detect a global reset signal (GRS). The initialization core may generate one or more packets that enable communication with the cores. The initialization core may send reset packets to each of the cores that instruct the cores to perform a reset. In some embodiments, the reset command may power-off the cores. The initialization core may then transmit unreset packets to each of the cores that instruct the cores to perform an unreset and power-on the cores. In some embodiments, the cores may resume operation automatically without receipt of the unreset packet. The transmission of the packets may be staggered (staged) to control the power-on of the processor and enable the processor unit to more slowly increase its power state.
Abstract:
A semiconductor device may include a programmable fabric and a processor (130). The processor may utilize one or more extension architectures (400). At least one of these extension architectures (400) may be used to integrate and/or embed the programmable fabric into the processor (130) as part of the processor (130). Specifically, a buffer of the extension architecture (400) may be used to load data to and store data from the programmable fabric.
Abstract:
This disclosure is directed to performing a controlled reset of one or more cores while maintaining operation of at least one other core in a multi-core processor. An initialization core may include reset logic that may detect a problematic core or core that is unresponsive or otherwise not operating properly. The initialization core may generate a packet that enables communication with the problematic core. The initialization core may send a reset packet to the problematic core to instruct the problematic core to perform a reset.
Abstract:
Provided are techniques for processing a data segment by stripping a header from a transport layer segment, performing protocol data unit detection to determine data for a protocol segment that is part of the transport layer segment data, and performing marker validation and stripping. Also provided are techniques for processing a data segment in which a header portion of a protocol data unit is received. A number of bytes of data to be stored in an application space is determined using the received header portion. Also, a next header portion of a next protocol data unit is determined using the received header portion. Then, a peek command is issued to obtain the next header portion. Additionally provided are techniques for performing cyclic redundancy checks using a stored partial cyclic redundancy check digest and residual data.
Abstract:
Following a restart or a reboot of a system that includes a multi-core processor, the multi-core processor may assign each active and eligible core a unique advanced programmable interrupt controller (APIC) identifier (ID). Initialization logic may detect a state of each of the plurality of processing cores as active or inactive. The initialization logic may detect an attribute of each of the plurality of processing cores as eligible to be assigned an APIC ID or as ineligible to be assigned the APIC ID.