Visible to Intel only — GUID: sfo1410068325202
Ixiasoft
Visible to Intel only — GUID: sfo1410068325202
Ixiasoft
10.3.15.5. Exclusive and Locked Accesses
The ACP does not support exclusive accesses to coherent memory. Exclusive accesses to non-coherent memory can be generated, however, it is important that the exclusive access transaction is not affected by the upsizing and downsizing logic of the FPGA-to-HPS bridge or the system interconnect. If the exclusive access is broken into multiple transactions due to the sizing logic, the exclusive access bit is cleared by the bridge or interconnect and the exclusive access fails.
The ACP ID mapper does not support locked accesses. To ensure mutually exclusive access to shared data, use the exclusive access support built into the SDRAM controller.