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Synchronized access to data in shared memory by protecting the load target address of a load-reserve instruction
Synchronized access to data in shared memory by protecting the load target address of a load-reserve instruction
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机译:通过保护负载储备指令的负载目标地址来同步对共享内存中的数据的访问
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摘要
A data processing system includes multiple processing units all having access to a shared memory. A processing unit includes a processor core that executes memory access instructions including a load-type instruction. Execution of the load-type instruction generates a corresponding request that specifies a target address. The processing unit further includes a read-claim state machine that, responsive to receipt of the request, protects the load target address against access by any conflicting memory access request during a protection interval following servicing of the request.
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