摘要:
In a microprocessor, an apparatus and method for performing memory functions and issuing bus cycles. Special microinstructions are stored in microcode ROM. These microinstructions are used to perform the memory functions and to generate the special bus cycles. Initially, an address corresponding to a requested operation to be performed is generated for one of these special microinstructions. That special microinstruction, along with its address, is then transmitted over the bus to the various units of the microprocessor. When each of the units receives the microinstruction, it determines whether that microinstruction is to be ignored based on the address. If a particular unit ignores the microinstruction, the microinstruction is forwarded to subsequent units in the pipeline for processing. Otherwise, if that particular unit performs the requested operation as specified by the microinstruction's address.
摘要:
In some embodiments, an apparatus includes processor selection logic to receive logical destination identification numbers that are associated with interrupts each having a processor cluster identification number to identify a cluster of processors to which the interrupts are directed. The logical destination identification numbers are each to identify which processors within the identified cluster of processors are available to receive the corresponding one of interrupts. The processor selection logic is to select one of the available processors to receive the interrupt, and the selected one of the available processors is identified through a relative position of a corresponding bit in the logical destination identification numbers. Other embodiments are described.
摘要:
A technique to broadcast a message across a point-to-point network. More particularly, embodiments of the invention relate to broadcasting messages between electronics components within a point-to-point interconnect.
摘要:
In a multi-threaded system, such as in a multi-processor system, different types of fences are provided to force completion of programmatically earlier instructions in a program. The types of fences can be thread-specific, and different types of fences are used based on different kinds of conditions, instructions, operations, or memory types. When a fence is executed, senior stores, request buffers, bus queues, or any combination of these stages in an execution pipeline can be drained. Fetches at a front end of the pipeline can also be killed to ensure that the bus queue can be drained.
摘要:
An apparatus and method is described herein for providing a test, validation, and debug architecture. At a target or base level, hardware (Design for Test or DFx) are designed into and integrated with silicon parts. A controller may provide abstracted access to such hooks, such as through an abstraction layer that abstracts low level details of the hardware DFx. In addition, the abstraction layer through an interface, such as APIs, provides services, routines, and data structures to higher-level software/presentation layers, which are able to collect test data for validation and debug of a unit/platform under test. Moreover, the architecture potentially provides tiered (multiple levels of) secure access to the test architecture. Additionally, physical access to the test architecture for a platform may be simplified through use of a unified, bi-directional test access port, while also potentially allowing remote access to perform remote test and de-bug of a part/platform under test. In essence, a complete test architecture stack is described herein for test, validation, and debug of electronic parts, devices, and platforms.
摘要:
Techniques to broadcast a message across a point-to-point network are described. More particularly, some embodiments of the invention relate to broadcasting messages between electronics components within a point-to-point interconnect. Other embodiments are also disclosed.
摘要:
In some embodiments, an apparatus includes processors, signal storage circuitry, and processor selection logic. The signal storage circuitry is to hold willingness indication signals each indicative of a willingness level of an associated one of the processors to receive an interrupt and to hold priority indication signals each indicative of a processor priority level of an associated one of the processors, wherein there are multiple possible willingness levels and multiple possible processor priority levels. The processor selection logic is to select one of the processors to receive an interrupt based at least on the willingness indication signals. Other embodiments are described.
摘要:
In some embodiments, an apparatus includes processors, signal storage circuitry, and processor selection logic. The signal storage circuitry is to hold willingness indication signals each indicative of a willingness level of an associated one of the processors to receive an interrupt and to hold priority indication signals each indicative of a processor priority level of an associated one of the processors, wherein there are multiple possible willingness levels and multiple possible processor priority levels. The processor selection logic is to select one of the processors to receive an interrupt based at least on the willingness indication signals. Other embodiments are described.
摘要:
An apparatus and method is described herein for providing a test, validation, and debug architecture. At a target or base level, hardware hooks (Design for Test or DFx) are designed into and integrated with silicon parts. A controller may provide abstracted access to such hooks, such as through an abstraction layer that abstracts low level details of the hardware DFx. In addition, the abstraction layer through an interface, such as APIs, provides services, routines, and data structures to higher-level software/presentation layers, which are able to collect test data for validation and debug of a unit/platform under test. Moreover, the architecture potentially provides tiered (multiple levels of) secure access to the test architecture. Additionally, physical access to the test architecture for a platform may be simplified through use of a unified, bi-directional test access port, while also potentially allowing remote access to perform remote test and debug of a part/platform under test. In essence, a complete test architecture stack is described herein for test, validation, and debug of electronic parts, devices, and platforms.
摘要:
Methods and apparatus relating to debugging complex multi-core and/or multi-socket systems are described. In one embodiment, a debug controller detects an event corresponding to a failure in a computing system and transmits data corresponding to the event to one of the other debug controllers in the system. Other embodiments are also disclosed and claimed.