[0/9] ppc/pnv: HOMER and OCC fixes and improvements

Message

Nicholas Piggin Dec. 10, 2024, 3:04 a.m. UTC

This series makes a bunch of fixes and improvements to the HOMER and
OCC unit models for powernv. It gets OPAL OCC code happier again,
but requires this series of skiboot fixes (which I will hope to get
upstream and then into QEMU in the same release as this series is
merged.

https://lists.ozlabs.org/pipermail/skiboot/2024-November/019013.html

Big changes is moving HOMER from mmio register implementation to a
RAM memory region which better maches hardware and is much easier to
work with; and the addition of some dynamic OCC behaviour to the
device model.

I wouldn't expect any review of OCC details. It's neglected and this
series gets it in better shape than before. But anything on the
basic structure and QEMU details is welcome. I will add some test
cases to help ensure it doesn't regress in future, I will have to
juggle the skiboot fixes as well though, so will do that later.

Thanks,
Nick

Nicholas Piggin (9):
  ppc/pnv/homer: Fix OCC registers
  ppc/pnv/homer: Make dummy reads return 0
  ppc/pnv/occ: Fix common area sensor offsets
  ppc/pnv/homer: class-based base and size
  ppc/pnv/occ: Better document OCCMISC bits
  ppc/pnv: Make HOMER memory a RAM region
  ppc/pnv/occ: Update pstate frequency tables
  ppc/pnv/occ: Add POWER10 OCC-OPAL data format
  ppc/pnv/occ: Implement a basic dynamic OCC model

 include/hw/ppc/pnv.h       |   6 +-
 include/hw/ppc/pnv_homer.h |  12 +-
 include/hw/ppc/pnv_occ.h   |   9 +
 hw/ppc/pnv.c               |  87 +++--
 hw/ppc/pnv_homer.c         | 230 +++----------
 hw/ppc/pnv_occ.c           | 668 +++++++++++++++++++++++++++++++++++--
 6 files changed, 742 insertions(+), 270 deletions(-)