Abstract: Systems and devices can include a controller and a command queue to buffer incoming write requests into the device. The controller can receive, from a client across a link, a non-posted write request (e.g., a deferred memory write (DMWr) request) in a transaction layer packet (TLP) to the command queue; determine that the command queue can accept the DMWr request; identify, from the TLP, a successful completion (SC) message that indicates that the DMWr request was accepted into the command queue; and transmit, to the client across the link, the SC message that indicates that the DMWr request was accepted into the command queue. The controller can receive a second DMWr request in a second TLP; determine that the command queue is full; and transmit a memory request retry status (MRS) message to be transmitted to the client in response to the command queue being full.

Abstract: Embodiments of systems, methods, and apparatuses for heterogeneous computing are described. In some embodiments, a hardware heterogeneous scheduler dispatches instructions for execution on one or more plurality of heterogeneous processing elements, the instructions corresponding to a code fragment to be processed by the one or more of the plurality of heterogeneous processing elements, wherein the instructions are native instructions to at least one of the one or more of the plurality of heterogeneous processing elements.

Abstract: Apparatus and methods implementing a hardware queue management device for reducing inter-core data transfer overhead by offloading request management and data coherency tasks from the CPU cores. The apparatus include multi-core processors, a shared L3 or last-level cache (“LLC”), and a hardware queue management device to receive, store, and process inter-core data transfer requests. The hardware queue management device further comprises a resource management system to control the rate in which the cores may submit requests to reduce core stalls and dropped requests. Additionally, software instructions are introduced to optimize communication between the cores and the queue management device.

Abstract: Disclosed embodiments relate to remote atomic operations (RAO) in multi-socket systems. In one example, a method, performed by a cache control circuit of a requester socket, includes: receiving the RAO instruction from the requester CPU core, determining a home agent in a home socket for the addressed cache line, providing a request for ownership (RFO) of the addressed cache line to the home agent, waiting for the home agent to either invalidate and retrieve a latest copy of the addressed cache line from a cache, or to fetch the addressed cache line from memory, receiving an acknowledgement and the addressed cache line, executing the RAO instruction on the received cache line atomically, subsequently receiving multiple local RAO instructions to the addressed cache line from one or more requester CPU cores, and executing the multiple local RAO instructions on the received cache line independently of the home agent.

Abstract: Disclosed embodiments relate to spatial and temporal merging of remote atomic operations.

Abstract: Disclosed embodiments relate to remote atomic operations (RAO) in multi-socket systems. In one example, a method, performed by a cache control circuit of a requester socket, includes: receiving the RAO instruction from the requester CPU core, determining a home agent in a home socket for the addressed cache line, providing a request for ownership (RFO) of the addressed cache line to the home agent, waiting for the home agent to either invalidate and retrieve a latest copy of the addressed cache line from a cache, or to fetch the addressed cache line from memory, receiving an acknowledgement and the addressed cache line, executing the RAO instruction on the received cache line atomically, subsequently receiving multiple local RAO instructions to the addressed cache line from one or more requester CPU cores, and executing the multiple local RAO instructions on the received cache line independently of the home agent.

Abstract: A fabric controller to provide a coherent accelerator fabric, including: a host interconnect to communicatively couple to a host device; a memory interconnect to communicatively couple to an accelerator memory; an accelerator interconnect to communicatively couple to an accelerator having a last-level cache (LLC); and an LLC controller configured to provide a bias check for memory access operations.

Abstract: Aspects of the embodiments are directed to systems and methods for providing and using hints in data packets to perform memory transaction optimization processes prior to receiving one or more data packets that rely on memory transactions. The systems and methods can include receiving, from a device connected to the root complex across a PCIe-compliant link, a data packet; identifying from the received device a memory transaction hint bit; determining a memory transaction from the memory transaction hint bit; and performing an optimization process based, at least in part, on the determined memory transaction.

Abstract: There is disclosed in an example a peripheral component interconnect express (PCIe) controller to provide coherent memory mapping between an accelerator memory and a host memory address space, having: a PCIe controller hub including extensions to provide a coherent accelerator interconnect (CAI) to provide bias-based coherency tracking between the accelerator memory and the host memory address space; wherein the extensions include: a mapping engine to provide opcode mapping between PCIe instructions and on-chip system fabric (OSF) instructions for the CAI; and a tunneling engine to provide scalable memory interconnect (SMI) tunneling of host memory operations to the accelerator memory via the CAI.

Abstract: A technique to enable secure application and data integrity within a computer system. In one embodiment, one or more secure enclaves are established in which an application and data may be stored and executed.

Abstract: Systems, methods, and devices can include ports comprising hardware to support the multilane link, wherein the multi-lane link comprises a first set of bundled lanes configured in a first direction and a second set of bundled lanes configured in a second direction, the second direction is opposite to the first direction, the first set of bundled lanes comprises an equal number of lanes as the second set of bundled lanes. An input/output (I/O) bridge logic implemented at least partially in hardware can receive across the multilane link an cache invalidation request received on a port compliant with an I/O protocol. A memory controller logic implemented at least partially in hardware can invalidate a cache line based on receiving the cache invalidation request on the I/O protocol. The memory controller can transmit across the multilane link a memory invalidation response message on a port compliant with a device-attached memory access protocol.

Abstract: Techniques and apparatus to manage access to accelerator-attached memory are described. In one embodiment, an apparatus to provide coherence bias for accessing accelerator memory may include at least one processor, a logic device communicatively coupled to the at least one processor, a logic device memory communicatively coupled to the logic device, and logic, at least a portion comprised in hardware, the logic to receive a request to access the logic device memory from the logic device, determine a bias mode associated with the request, and provide the logic device with access to the logic device memory via a device bias pathway responsive to the bias mode being a device bias mode. Other embodiments are described and claimed.

Abstract: Embodiments may be generally direct to apparatuses, systems, method, and techniques to provide multi-interconnect protocol communication. In an embodiment, an apparatus for providing multi-interconnect protocol communication may include a component comprising at least one connector operative to connect the component to at least one off-package device via a standard interconnect protocol, and logic, at least a portion of the logic comprised in hardware, the logic to determine data to be communicated via a multi-interconnect protocol, provide the data to a multi-protocol multiplexer to determine a route for the data, route the data on-package responsive to the multi-protocol multiplexer indicating a multi-interconnect on-package mode, and route the data off-package via the at least one connector responsive to the multi-protocol multiplexer indicating a multi-interconnect off-package mode. Other embodiments are described.

Abstract: Embodiments may be generally direct to apparatuses, systems, method, and techniques to detect a message to communicate via an interconnect coupled with a device capable of communication via a plurality of interconnect protocols, the plurality of interconnect protocols comprising a non-coherent interconnect protocol, a coherent interconnect protocol, and a memory interconnect protocol. Embodiments also include determining an interconnect protocol of the plurality of interconnect protocols to communicate the message via the interconnect based on the message, and providing the message to a multi-protocol multiplexer coupled with the interconnect, the multi-protocol multiplexer to communicate the message utilizing the interconnect protocol via the interconnect with the device.

Abstract: Method and apparatus for per-agent control and quality of service of shared resources in a chip multiprocessor platform is described herein. One embodiment of a system includes: a plurality of core and non-core requestors of shared resources, the shared resources to be provided by one or more resource providers, each of the plurality of core and non-core requestors to be associated with a resource-monitoring tag and a resource-control tag; a mapping table to store the resource monitoring and control tags associated with each non-core requestor; and a tagging circuitry to receive a resource request sent from a non-core requestor to a resource provider, the tagging circuitry to responsively modify the resource request to include the resource-monitoring and resource-control tags associated with the non-core requestor in accordance to the mapping table and send the modified resource request to the resource provider.

Abstract: A technique to enable secure application and data integrity within a computer system. In one embodiment, one or more secure enclaves are established in which an application and data may be stored and executed.

Abstract: Embodiments may be generally direct to apparatuses, systems, method, and techniques to determine a configuration for a plurality of connectors, the configuration to associate a first interconnect protocol with a first subset of the plurality of connectors and a second interconnect protocol with a second subset of the plurality of connectors, the first interconnect protocol and the second interconnect protocol are different interconnect protocols and each comprising one of a serial link protocol, a coherent link protocol, and an accelerator link protocol, cause processing of data for communication via the first subset of the plurality of connectors in accordance with the first interconnect protocol, and cause processing of data for communication via the second subset of the plurality of connector in accordance with the second interconnect protocol.

Abstract: Apparatus and methods implementing a hardware queue management device for reducing inter-core data transfer overhead by offloading request management and data coherency tasks from the CPU cores. The apparatus include multi-core processors, a shared L3 or last-level cache (“LLC”), and a hardware queue management device to receive, store, and process inter-core data transfer requests. The hardware queue management device further comprises a resource management system to control the rate in which the cores may submit requests to reduce core stalls and dropped requests. Additionally, software instructions are introduced to optimize communication between the cores and the queue management device.

Abstract: A processor may include a memory controller to interface with a system memory having a near memory and a far memory. The processor may include logic circuitry to cause memory controller to determine whether a write request is generated remotely or locally, and when the write request is generated remotely to instruct the memory controller to perform a read of near memory before performing a write, when the write request is generated locally and a cache line targeted by the write request is in the inclusive state to instruct the memory controller to perform the write without performing a read of near memory, and when the write request is generated locally and the cache line targeted by the write request is in the non-inclusive state to instruct the memory controller to read near memory before performing the write.

Abstract: A technique to enable secure application and data integrity within a computer system. In one embodiment, one or more secure enclaves are established in which an application and data may be stored and executed.