• Linus Torvalds's avatar
    Merge tag 'powerpc-4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 49a695ba
    Linus Torvalds authored
    Pull powerpc updates from Michael Ellerman:
     "Notable changes:
       - Support for 4PB user address space on 64-bit, opt-in via mmap().
       - Removal of POWER4 support, which was accidentally broken in 2016
         and no one noticed, and blocked use of some modern instructions.
       - Workarounds so that the hypervisor can enable Transactional Memory
         on Power9.
       - A series to disable the DAWR (Data Address Watchpoint Register) on
       - More information displayed in the meltdown/spectre_v1/v2 sysfs
       - A vpermxor (Power8 Altivec) implementation for the raid6 Q
       - A big series to make the allocation of our pacas (per cpu area),
         kernel page tables, and per-cpu stacks NUMA aware when using the
         Radix MMU on Power9.
      And as usual many fixes, reworks and cleanups.
      Thanks to: Aaro Koskinen, Alexandre Belloni, Alexey Kardashevskiy,
      Alistair Popple, Andy Shevchenko, Aneesh Kumar K.V, Anshuman Khandual,
      Balbir Singh, Benjamin Herrenschmidt, Christophe Leroy, Christophe
      Lombard, Cyril Bur, Daniel Axtens, Dave Young, Finn Thain, Frederic
      Barrat, Gustavo Romero, Horia Geantă, Jonathan Neuschäfer, Kees Cook,
      Larry Finger, Laurent Dufour, Laurent Vivier, Logan Gunthorpe,
      Madhavan Srinivasan, Mark Greer, Mark Hairgrove, Markus Elfring,
      Mathieu Malaterre, Matt Brown, Matt Evans, Mauricio Faria de Oliveira,
      Michael Neuling, Naveen N. Rao, Nicholas Piggin, Paul Mackerras,
      Philippe Bergheaud, Ram Pai, Rob Herring, Sam Bobroff, Segher
      Boessenkool, Simon Guo, Simon Horman, Stewart Smith, Sukadev
      Bhattiprolu, Suraj Jitindar Singh, Thiago Jung Bauermann, Vaibhav
      Jain, Vaidyanathan Srinivasan, Vasant Hegde, Wei Yongjun"
    * tag 'powerpc-4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (207 commits)
      powerpc/64s/idle: Fix restore of AMOR on POWER9 after deep sleep
      powerpc/64s: Fix POWER9 DD2.2 and above in cputable features
      powerpc/64s: Fix pkey support in dt_cpu_ftrs, add CPU_FTR_PKEY bit
      powerpc/64s: Fix dt_cpu_ftrs to have restore_cpu clear unwanted LPCR bits
      Revert "powerpc/64s/idle: POWER9 ESL=0 stop avoid save/restore overhead"
      powerpc: iomap.c: introduce io{read|write}64_{lo_hi|hi_lo}
      powerpc: io.h: move iomap.h include so that it can use readq/writeq defs
      cxl: Fix possible deadlock when processing page faults from cxllib
      powerpc/hw_breakpoint: Only disable hw breakpoint if cpu supports it
      powerpc/mm/radix: Update command line parsing for disable_radix
      powerpc/mm/radix: Parse disable_radix commandline correctly.
      powerpc/mm/hugetlb: initialize the pagetable cache correctly for hugetlb
      powerpc/mm/radix: Update pte fragment count from 16 to 256 on radix
      powerpc/mm/keys: Update documentation and remove unnecessary check
      powerpc/64s/idle: POWER9 ESL=0 stop avoid save/restore overhead
      powerpc/64s/idle: Consolidate power9_offline_stop()/power9_idle_stop()
      powerpc/powernv: Always stop secondaries before reboot/shutdown
      powerpc: hard disable irqs in smp_send_stop loop
      powerpc: use NMI IPI for smp_send_stop
      powerpc/powernv: Fix SMT4 forcing idle code