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AssigneeInternational Business Machines Corporation
InventorsErik R. Altman, Peter G. Capek, Michael Karl Gschwind, Harm Peter Hofstee, James Allan Kahle, Ravi Nair, Sumedh Wasudeo Sathaye, John-David Wellman
Estimating the term…
A method and system for attached processing units accessing a shared memory in an SMP system. In one embodiment, a system comprises a shared memory. The system further comprises a plurality of processing elements coupled to the shared memory. Each of the plurality of processing elements comprises a processing unit, a direct memory access controller and a plurality of attached processing units. Each direct memory access controller comprises an address translation mechanism thereby enabling each associated attached processing unit to access the shared memory in a restricted manner without an address translation mechanism. Each attached processing unit is configured to issue a request to an associated direct memory access controller to access the shared memory specifying a range of addresses to be accessed as virtual addresses. The associated direct memory access controller is configured to translate the range of virtual addresses into an associated range of physical addresses.
A system comprising:
A method for attached processing units accessing a shared memory in a system comprising the steps of:
A method for maintaining Translation Lookaside Buffer (TLB) consistency in a system comprising a shared memory and a plurality of processing elements coupled to said shared memory, wherein each of said plurality of processing elements comprises a processing unit, a direct memory access controller and a plurality of attached processing units, wherein each of said plurality of direct memory access controllers comprises a TLB, the method comprising the steps of:
Dependencies are inferred from the claim text.