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[PATCH 0/5] ppc/pnv: fix Homer/Occ mappings on multichip systems


From: Balamuruhan S
Subject: [PATCH 0/5] ppc/pnv: fix Homer/Occ mappings on multichip systems
Date: Tue, 19 Nov 2019 23:20:51 +0530

Hi All,

PowerNV fails to boot in multichip systems due to some misinterpretation
and mapping in Homer/Occ device models, this patchset fixes the
following,

 - Homer size is 4MB per chip and Occ common area size is 8MB
 - Bar masks are used to calculate sizes of Homer/Occ in skiboot so
   return appropriate value
 - Occ common area is in BAR 3 on Power8 but wrongly mapped to BAR 2
   currently
 - OCC common area is shared across chips and should be mapped only once
   for multichip systems

Request for your review and suggestions to make it better. I would like to
thank Cedric for his time and help to figure out the issues.

Balamuruhan S (5):
  hw/ppc/pnv: incorrect homer and occ common area size
  hw/ppc/pnv_xscom: PBA bar mask values are incorrect with homer/occ
    sizes
  hw/ppc/pnv_xscom: Power8 occ common area is in PBA BAR 3
  hw/ppc/pnv_xscom: occ common area to be mapped only once
  hw/ppc/pnv_xscom: add PBA BARs for Power8 slw image

 hw/ppc/pnv_occ.c     |  2 +-
 hw/ppc/pnv_xscom.c   | 37 +++++++++++++++++++++++++++----------
 include/hw/ppc/pnv.h | 12 ++++++++----
 3 files changed, 36 insertions(+), 15 deletions(-)

-- 
2.14.5




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