METHODS AND APPARATUS FOR READ-MODIFY-WRITE SUPPORT IN MULTI-BANKED DATA RAM CACHE FOR BANK ARBITRATION

    公开(公告)号:US20200371938A1

    公开(公告)日:2020-11-26

    申请号:US16882235

    申请日:2020-05-22

    Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for read-modify-write support in multi-banked data RAM cache for bank arbitration. An example data cache system includes a store queue including a plurality of bank queues including a first bank queue having a write and read port configured to receive a respective write and read operation, storage coupled to the store queue including a plurality of data banks including a first data bank having a first port configured to receive the write or the read operation, first through third multiplexers, and bank arbitration logic including first arbiters including a first arbiter and second arbiters including a second arbiter, the first arbiter coupled to the second arbiter, the second and third multiplexers, the second arbiter coupled to the first multiplexer.

    METHODS AND APPARATUS TO FACILITATE READ-MODIFY-WRITE SUPPORT IN A COHERENT VICTIM CACHE WITH PARALLEL DATA PATHS

    公开(公告)号:US20200371911A1

    公开(公告)日:2020-11-26

    申请号:US16882225

    申请日:2020-05-22

    Abstract: Methods, apparatus, systems and articles of manufacture are disclosed facilitate read-modify-write support in a coherent victim cache with parallel data paths. An example apparatus includes a random-access memory configured to be coupled to a central processing unit via a first interface and a second interface, the random-access memory configured to obtain a read request indicating a first address to read via a snoop interface, an address encoder coupled to the random-access memory, the address encoder to, when the random-access memory indicates a hit of the read request, generate a second address corresponding to a victim cache based on the first address, and a multiplexer coupled to the victim cache to transmit a response including data obtained from the second address of the victim cache.

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