RFR: 8232602: ZGC: Make ZGranuleMap ZAddress agnostic

[Per Liden]

Looks good.

/Per

On 10/21/19 3:09 PM, Stefan Karlsson wrote:
> Hi all,
> 
> Please review this patch to make ZGranuleMap ZAddress agnostic.
> 
> https://cr.openjdk.java.net/~stefank/8232602/webrev.01/
> https://bugs.openjdk.java.net/browse/JDK-8232602
> 
> Currently, the ZGranuleMap get and put functions take an address in the 
> heap as a parameter. The address is then converted into an offset (into 
> a heap view), before being scaled to a granule.
> 
> We want to be able to use the ZGranuleMap for physical memory offsets, 
> and not only heap addresses. Therefore, I propose that we move the 
> conversions from address to offset out from ZGranuleMap, and move it to 
> the current users of ZGranuleMap.
> 
> This patch applies on-top of the patch for JDK-8232601.
> 
> Thanks,
> StefanK
>