Method for way allocation and way locking in a cache
AssigneeAdvanced Micro Devices, Inc.
InventorsJonathan Owen, Guhan Krishnan, Carl D. Dietz, Douglas Richard Beard, William K. Lewchuk, Alexander Branover
Life of this patent
Estimating the term…
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AssigneeAdvanced Micro Devices, Inc.
InventorsJonathan Owen, Guhan Krishnan, Carl D. Dietz, Douglas Richard Beard, William K. Lewchuk, Alexander Branover
Estimating the term…
A system and method for data allocation in a shared cache memory of a computing system are contemplated. Each cache way of a shared set-associative cache is accessible to multiple sources, such as one or more processor cores, a graphics processing unit (GPU), an input/output (I/O) device, or multiple different software threads. A shared cache controller enables or disables access separately to each of the cache ways based upon the corresponding source of a received memory request. One or more configuration and status registers (CSRs) store encoded values used to alter accessibility to each of the shared cache ways. The control of the accessibility of the shared cache ways via altering stored values in the CSRs may be used to create a pseudo-RAM structure within the shared cache and to progressively reduce the size of the shared cache during a power-down sequence while the shared cache continues operation.
A computing system comprising:
A method comprising:
A shared cache controller comprising:
Dependencies are inferred from the claim text.