powerpc/opal: add MPIPL interface definitions

Browse source

MPIPL is Memory Preserving IPL supported from POWER9. This enables the
kernel to reset the system with memory 'preserved'. Also, it supports
copying memory from a source address to some destination address during
MPIPL boot. Add MPIPL interface definitions here to leverage these f/w
features in adding FADump support for PowerNV platform.

Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/156821340710.5656.10071829040515662624.stgit@hbathini.in.ibm.com

...

This commit is contained in:

Hari Bathini 2019-09-11 20:20:12 +05:30 • committed by Michael Ellerman

parent 1679b96e69

commit 6f5f193e84

3 changed files with 51 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

44

arch/powerpc/include/asm/opal-api.h

View file

5

arch/powerpc/include/asm/opal.h

View file

3

arch/powerpc/platforms/powernv/opal-call.c

View file