Hello all, I am trying to add a src_cpuId data member to the MemoryMsg structure in Ruby to help in tracking memory requests from cpu to MemCtrl. MemoryMsg is defined in src/mem/ruby/protocol/RubySlicc_MemControl.sm. I have added the parameter to the structure definition. code snippet below:
int Len, desc="size of the memory/dma request"; //<-- original code int src_cpuId, default=-1, desc="the id of the cpu core that originated the request"; //jpangia // Not all fields used by all protocols: //<-- original code PrefetchBit Prefetch, desc="Is this a prefetch request"; //<-- original code For ease of bookkeeping, I'd like to make the default value be -1 for src_cpuId so that requests that didn't originate from a cpu have a src_cpuId of -1. But if I try to set default=-1, then I get the error: "Syntax error at [gem5 root directory]/src/mem/ruby/protocol/RubySlicc_MemControl.sm:83:3570" However, non-negative integers compile fine. Is there a way to set a default value of -1 to a SLICC structure data member, or will I have to just use int_max, or another large value for the code for "no source cpu"? Thank you, -James Pangia
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