On Sun, Nov 10, 2019 at 11:21:27PM -0600, Tyrel Datwyler wrote: > There was a previous effort to add support for the PAPR > architected ibm,drc-info property. This property provides a more > memory compact representation of a parition's Dynamic Reconfig > Connectors (DRC). These can otherwise be thought of as currently > partitioned, or available but yet to be partitioned system resources > such as cpus, memory, and physical/logical IOA devices. > > The initial implementation proved buggy and was fully turned off by > disabling the bit in the appropriate CAS support vector. We now have > PowerVM firmware in the field that supports this new property, and > further to support partitions with 24TB+ of possible memory this > property is required to perform platform migration. > > This series fixs the short comings of the previous submission > in the areas of general implementation, cpu hotplug, and IOA hotplug. > > v2 changelog: > Cover Letter: fixed up spelling errors (mpe, tfalcon) > Patch 3: added comment regarding indexing of drc values (tfalcon) > split drc-index and drc-info logic into multiple > functions for collecting cpu drc's for dlpar (mpe) > Patch 7: fix up a couple more sparse warnings (mpe) > > Tyrel Datwyler (9): > powerpc/pseries: Fix bad drc_index_start value parsing of drc-info > entry > powerpc/pseries: Fix drc-info mappings of logical cpus to drc-index > powerpc/pseries: Add cpu DLPAR support for drc-info property > PCI: rpaphp: Fix up pointer to first drc-info entry > PCI: rpaphp: Don't rely on firmware feature to imply drc-info support > PCI: rpaphp: Add drc-info support for hotplug slot registration > PCI: rpaphp: Annotate and correctly byte swap DRC properties > PCI: rpaphp: Correctly match ibm,my-drc-index to drc-name when using > drc-info > powerpc/pseries: Enable support for ibm,drc-info property > > arch/powerpc/kernel/prom_init.c | 2 +- > arch/powerpc/platforms/pseries/hotplug-cpu.c | 127 +++++++++++++++++++++--- > arch/powerpc/platforms/pseries/of_helpers.c | 8 +- > arch/powerpc/platforms/pseries/pseries_energy.c | 23 ++--- > drivers/pci/hotplug/rpaphp_core.c | 127 +++++++++++++++++------- For the drivers/pci/* parts: Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> I assume they will be merged along with the rest of the series via powerpc. > 5 files changed, 216 insertions(+), 71 deletions(-) > > -- > 2.7.4 >
