[Ubuntu 16.10] powerpc/devtree: Add support for 2 new DRC properties

[bugproxy]

powerpc/devtree: Add support for 2 new DRC properties to the Ubuntu distribution for powerpc

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 provided by the BMC. This element format is intended to provide
a more compact representation of memory, especially, for systems with
massive amounts of RAM. To simplify portability, this property is
converted to the "ibm,dynamic-memory" property during system boot.

"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".

Signed-off-by: Michael Bringmann <email address hidden>
https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-July/146536.html

Michael Bringmann (8):
  powerpc/firmware: Add definitions for new firmware features.
    https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-July/146537.html
  powerpc/memory: Parse new memory property to register blocks.
    https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-July/146538.html
  powerpc/memory: Parse new memory property to initialize structures.
    https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-July/146539.html
  pseries/hotplug init: Convert new DRC memory property for hotplug runtime
    https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-July/146540.html
  pseries/drc-info: Search new DRC properties for CPU indexes
    https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-July/146541.html
  hotplug/drc-info: Add code to search new devtree properties
    https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-July/146542.html
  powerpc: Check arch.vec earlier during boot for memory features
    https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-July/146543.html
  powerpc: Enable support for new DRC devtree properties
    https://lists.ozlabs.org/pipermail/linuxppc-dev/2016-July/146544.html

[Tim Gardner (timg-tpi)]

Please notify me when this patch set makes it into linux-next.

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2017-03-21 10:41 EDT-------
We are at the Final Freeze, and I am wondering if we still have time to get this fixed in 17.04?

[Tim Gardner (timg-tpi)]

<email address hidden> - Zesty kernel freeze is March 30. However, it doesn't look like these patches have made much progress.

[Andy Whitcroft (apw)]

This bug was nominated against a series that is no longer supported, ie yakkety. The bug task representing the yakkety nomination is being closed as Won't Fix.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.