P189, 5.2.1 Dataless transaction without memory update

Why does RN-F0 transition I->UC, rather than UCE or UD? After MakeUnique, RN-F0 has obtained the right to modify the cache line by discarding all other copies, dirty or not, in other caches. The purpose…

In chapter 4.9.2 At the ICN(HN-F) node CHI specification talks about what ICN should do when there is hazard condition. It says:

One example of these rules is chapter 5.6.1 CopyBack-Snoop hazard at RN-F, Figure 5-22 CopyBack-Snoop hazard at RN-F exa…

The purpose of Exclusive Access is to read, calculate and modify a cache line atomically. The built-in Atomic Transactions can do some basic calculations at ICN or SN, but if more complex operations are necessary, Exclusive Access is needed.

CHI specification…