总目录：

CHI协议简读汇总-CSDN博客https://blog.csdn.net/zhangshangjie1/article/details/131877216

当某个requester包含多个logically separate processing agent时，使用这个LPID；

LPID在如下的opcode下，取值需要正确：

• For any Non-snoopable Non-cacheable or Device access:
  • ReadNoSnp
  • WriteNoSnp
• For Exclusive accesses, that can be one of the following transaction types:
  • ReadClean
  • ReadShared
  • ReadNotSharedDirty
  • ReadPreferUnique
  • MakeReadUnique
  • CleanUnique
  • ReadNoSnp
  • Write NoS np
• For other transactions:
  • LPID的值，应该设置成发起操作的那个LP的编号；