On Tue, 2010-04-27 at 16:56 -0500, Tseng-Hui (Frank) Lin wrote: > icswx is a PowerPC co-processor instruction to send data to a > co-processor. On Book-S processors the LPAR_ID and process ID (PID) of > the owning process are registered in the window context of the > co-processor at initial time. When the icswx instruction is executed, > the L2 generates a cop-reg transaction on PowerBus. The transaction has > no address and the processor does not perform an MMU access to > authenticate the transaction. The coprocessor compares the LPAR_ID and > the PID included in the transaction and the LPAR_ID and PID held in the > window context to determine if the process is authorized to generate the > transaction.
Ok, good, then stick that in the cset comment of your next patch submission after you've addresses all my other comments :-) Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
