International Business Machines Corporation

Globalfoundries Inc.

Bill N On

Robert Michael Dinkjian

Giang Chau Nguyen

Robert Spencer Horton

Michael Y Lee

James M Rakes

Jeffrey D Harper

Kalpesh Hira

Lyndsi R Parker

Zhi Liu

Huu N Dinh

Megan P Nguyen

Brian King Flachs

Suksoon Yong

An order controller calculates an absolute value of a difference between a first counter value stored with a first next entry set to an active status in a first queue from among at least two queues and a second counter value stored with a second next entry set to the active status in a second queue. The order controller compares the absolute value with a counter midpoint value. The order controller, responsive to the absolute value being less than the counter midpoint value, selects a smaller value of the first counter value of the first counter value and the second counter value as a next event to process. The order controller, responsive to the absolute value being greater than or equal to the counter midpoint value, selects a larger value of the first counter value and the second counter value as the next event to process.

Tracking a relative arrival order of events being stored in multiple queues using a counter

A user specified high level design selects a plurality of IP cores for placement in a customized system on a chip. A single integrated service automatically performs each of a design integration phase, specification phase, and verification phase for the user specified high level design to generate an integration file specifying stitching between a plurality of pins of each of the plurality of IP cores, a specification file specifying one or more characteristics of the customized system on a chip based on the user specified high level design, and a verification testbench for verification of the user specified high level design.

Automating system on a chip customized design integration, specification, and verification through a single, integrated service

An integrated circuit device comprises multiple cores each comprising one or more separate input and output interfaces, the multiple cores integrated within the integrated circuit device to function as a single computer system. Internal inter-chip connection links are disposed on the integrated circuit device for connecting one or more cores with at least one other core via the one or more separate input and output interfaces. One or more bidirectional access ports are communicatively connected in each path of the inter-chip connection links to enable a separate external access point to each of the one or more separate input and output interfaces of the cores, wherein each of the one or more bidirectional access ports is dynamically selectable as each of an external input interface of the integrated circuit device and an external output interface of the integrated circuit device.

Dynamic multi-purpose external access points connected to core interfaces within a system on chip (SOC)

An order controller stores each received event in a separate entry in one of at least two queues with a separate counter value set from an arrival order counter at the time of storage, wherein the arrival order counter is incremented after storage of each of the received events and on overflow the arrival order counter wraps back to zero. The order controller calculates an exclusive OR value of a first top bit of a first counter for a first queue from among the at least two queues and a second top bit of a second counter for a second queue from among the at least two queues. The order controller compares the exclusive OR value with a comparator bit to determine whether a first counter value in the first counter was stored before a second counter value in the second counter.

Tracking a relative arrival order of events being stored in multiple queues using a counter using most significant bit values

In response to receiving a selection to override an existing memory allocation of one or more regions of an external memory device within a memory register for a particular bridge from among multiple bridges within an integrated circuit, wherein the multiple bridges connect to a shared physical memory channel to the external memory device, a remap controller of the particular bridge reads, from a super rank register, one or more super rank values specifying one or more relocation regions of the external memory device connected to an interface of the integrated circuit. The remap controller remaps the memory register for the particular bridge with the one or more super rank values specified in the super rank register to relocate memory accesses by the bridge to the one or more relocation regions of the external memory device.

Performing secure address relocation within a multi-processor system sharing a same physical memory channel to external memory

A controller sets a selector register of programmable delay signal logic is to a value equal to a required number of clock cycles of delay for signals output from an integrated circuit to an external memory. The controller controls a selection of additional logic along the output path to perform on the delayed signal within a clock cycle without any latency added to the output path by delay signal logic outputting the delayed signal. The controller waits required number of clock cycles after setting the selector register before using the delayed signal output by the delay signal logic onto an output path.

Distributing multiplexing logic to remove multiplexor latency on the output path for variable clock cycle, delayed signals

Responsive to selecting a particular queue from among at least two queues to place an incoming event into within a particular entry from among multiple entries ordered upon arrival of the particular queue each comprising a separate collision vector, a memory address for the incoming event is compared with each queued memory address for each queued event in the other entries in the at least one other queue. Responsive to the memory address for the incoming event matching at least one particular queued memory address for at least one particular queued event in the at least one other queue, at least one particular bit is set in a particular collision vector for the particular entry in at least one bit position from among the bits corresponding with at least one row entry position of the at least one particular queued memory address within the other entries.

Managing out-of-order memory command execution from multiple queues while maintaining data coherency

An order controller stores each received event in a separate entry in one of at least two queues with a separate counter value set from an arrival order counter at the time of storage, wherein the arrival order counter is incremented after storage of each of the received events and on overflow the arrival order counter wraps back to zero. The order controller calculates an absolute value of the difference between a first counter value stored with an active first next entry in a first queue from among the at least two queues and a second counter value stored with an active second next entry in a second queue from among the at least two queues. The order controller compares the absolute value with a counter midpoint value to determine whether the first counter value was stored before the second counter value.

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Austin, TX, United States of America

Bill N On