[RFC v4] powerpc/devtree: Parse new DRC mem/cpu/dev device tree elements

[Michael Ellerman]

On Mon, 2016-04-18 at 09:38 -0500, mwb at linux.vnet.ibm.com wrote:

> Several properties in the DRC device tree format are replaced by
> more compact representations to allow, for example, for the encoding
> of vast amounts of memory, and or reduced duplication of information
> in related data structures.
> 
> "ibm,drc-info": This property, when present, replaces the following
> four properties: ibm,drc-indexes, ibm,drc-names, ibm,drc-types
> and ibm,drc-power-domains.  This property is defined for all
> dynamically reconfigurable platform nodes.  The "ibm,drc-info" elements
> are intended to provide a more compact representation, and reduce some
> search overhead.
> 
> "ibm,dynamic-memory-v2": This property replaces the "ibm,dynamic-memory"
> node representation within the "ibm,dynamic-reconfiguration-memory"
> property.  This element format is intended to provide a more compact
> representation of memory, especially, for systems with massive amounts
> of RAM.
> 
> "ibm,architecture.vec": Bit flags are added to this data structure
> by the front end processor to inform the kernel as to whether to expect
> the changes to one or both of the device tree structures "ibm,drc-info"
> and "ibm,dynamic-memory-v2".
> 
> The new element structures, "ibm,dynamic-memory-v2" and "ibm,drc-info",
> should completely replace the previously used structures at execution.
> 
> Signed-off-by: Michael Bringmann <mwb at linux.vnet.ibm.com>
> ---

What's changed in version 2, 3 and 4?

I also sent you comments on v2, did you see them?

cheers