[RFC PATCH 0/2] cxl: Add support for disabling CAPP when unloading CXL

[Vaibhav Jain]

Recent updates to OPAL have implemented necessary infrastructure [1] to disable
CAPP and switch PHB back to PCIE mode during fast reset. This small patch-set
uses the same OPAL infrastructure to force disable of CAPP when CXL module is
unloaded via rmmod.

References:
[1]: https://lists.ozlabs.org/pipermail/skiboot/2019-January/013063.html

Vaibhav Jain (2):
  powerpc/powernv: Add support for CXL mode switch that need PHB reset
  cxl: Force a CAPP reset when unloading CXL module

 arch/powerpc/platforms/powernv/pci-cxl.c | 71 +++++++++++++++++++++---
 drivers/misc/cxl/cxl.h                   |  1 +
 drivers/misc/cxl/main.c                  |  3 +
 drivers/misc/cxl/pci.c                   | 25 ++++++++-
 4 files changed, 91 insertions(+), 9 deletions(-)

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2.20.1