[PATCH 0/4] reorganize and add FADump sysfs files

[Sourabh Jain]

Currently, the FADump sysfs files are present inside /sys/kernel directory.
But as the number of FADump sysfs file increases it is not a good idea to
push all of them in /sys/kernel directory. It is better to have separate
directory to keep all the FADump sysfs files.

The patch series reorganizes the FADump sysfs files and avail all the
existing FADump sysfs files present inside /sys/kernel into a new directory
named fadump. Currently, all the FADump sysfs files are replicated into a
new directory to maintain the backward compatibility and will eventually get
removed in future. In addition to this a new FADump sys interface is added
to get the amount of memory reserved by FADump for saving the crash dump.

The series applies on top of:
https://lists.ozlabs.org/pipermail/linuxppc-dev/2019-September/196871.html

Sourabh Jain (4):
  powerpc/fadump: replicate /sys/kernel/fadump_* sysfs into
    /sys/kernel/fadump/
  Documentation/ABI: add ABI documentation for /sys/kernel/fadump_*
  Documentation/ABI: mark /sys/kernel/fadump_* sysfs files deprecated
  powerpc/fadump: sysfs for fadump memory reservation

 .../ABI/obsolete/sysfs-kernel-fadump_enabled  | 10 ++++
 .../obsolete/sysfs-kernel-fadump_registered   | 11 +++++
 .../obsolete/sysfs-kernel-fadump_release_mem  | 11 +++++
 .../sysfs-kernel-fadump_release_opalcore      | 10 ++++
 Documentation/ABI/testing/sysfs-kernel-fadump | 48 +++++++++++++++++++
 .../powerpc/firmware-assisted-dump.rst        | 14 ++++++
 arch/powerpc/kernel/fadump.c                  | 43 +++++++++++++++++
 arch/powerpc/platforms/powernv/opal-core.c    |  7 +++
 8 files changed, 154 insertions(+)
 create mode 100644 Documentation/ABI/obsolete/sysfs-kernel-fadump_enabled
 create mode 100644 Documentation/ABI/obsolete/sysfs-kernel-fadump_registered
 create mode 100644 Documentation/ABI/obsolete/sysfs-kernel-fadump_release_mem
 create mode 100644 Documentation/ABI/obsolete/sysfs-kernel-fadump_release_opalcore
 create mode 100644 Documentation/ABI/testing/sysfs-kernel-fadump

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2.17.2