• Linus Torvalds's avatar
    Merge tag 'powerpc-4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · bac65d9d
    Linus Torvalds authored
    Pull powerpc updates from Michael Ellerman:
     "Nothing really major this release, despite quite a lot of activity.
      Just lots of things all over the place.
    
      Some things of note include:
    
       - Access via perf to a new type of PMU (IMC) on Power9, which can
         count both core events as well as nest unit events (Memory
         controller etc).
    
       - Optimisations to the radix MMU TLB flushing, mostly to avoid
         unnecessary Page Walk Cache (PWC) flushes when the structure of the
         tree is not changing.
    
       - Reworks/cleanups of do_page_fault() to modernise it and bring it
         closer to other architectures where possible.
    
       - Rework of our page table walking so that THP updates only need to
         send IPIs to CPUs where the affected mm has run, rather than all
         CPUs.
    
       - The size of our vmalloc area is increased to 56T on 64-bit hash MMU
         systems. This avoids problems with the percpu allocator on systems
         with very sparse NUMA layouts.
    
       - STRICT_KERNEL_RWX support on PPC32.
    
       - A new sched domain topology for Power9, to capture the fact that
         pairs of cores may share an L2 cache.
    
       - Power9 support for VAS, which is a new mechanism for accessing
         coprocessors, and initial support for using it with the NX
         compression accelerator.
    
       - Major work on the instruction emulation support, adding support for
         many new instructions, and reworking it so it can be used to
         implement the emulation needed to fixup alignment faults.
    
       - Support for guests under PowerVM to use the Power9 XIVE interrupt
         controller.
    
      And probably that many things again that are almost as interesting,
      but I had to keep the list short. Plus the usual fixes and cleanups as
      always.
    
      Thanks to: Alexey Kardashevskiy, Alistair Popple, Andreas Schwab,
      Aneesh Kumar K.V, Anju T Sudhakar, Arvind Yadav, Balbir Singh,
      Benjamin Herrenschmidt, Bhumika Goyal, Breno Leitao, Bryant G. Ly,
      Christophe Leroy, Cédric Le Goater, Dan Carpenter, Dou Liyang,
      Frederic Barrat, Gautham R. Shenoy, Geliang Tang, Geoff Levand, Hannes
      Reinecke, Haren Myneni, Ivan Mikhaylov, John Allen, Julia Lawall,
      LABBE Corentin, Laurentiu Tudor, Madhavan Srinivasan, Markus Elfring,
      Masahiro Yamada, Matt Brown, Michael Neuling, Murilo Opsfelder Araujo,
      Nathan Fontenot, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran,
      Paul Mackerras, Rashmica Gupta, Rob Herring, Rui Teng, Sam Bobroff,
      Santosh Sivaraj, Scott Wood, Shilpasri G Bhat, Sukadev Bhattiprolu,
      Suraj Jitindar Singh, Tobin C. Harding, Victor Aoqui"
    
    * tag 'powerpc-4.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (321 commits)
      powerpc/xive: Fix section __init warning
      powerpc: Fix kernel crash in emulation of vector loads and stores
      powerpc/xive: improve debugging macros
      powerpc/xive: add XIVE Exploitation Mode to CAS
      powerpc/xive: introduce H_INT_ESB hcall
      powerpc/xive: add the HW IRQ number under xive_irq_data
      powerpc/xive: introduce xive_esb_write()
      powerpc/xive: rename xive_poke_esb() in xive_esb_read()
      powerpc/xive: guest exploitation of the XIVE interrupt controller
      powerpc/xive: introduce a common routine xive_queue_page_alloc()
      powerpc/sstep: Avoid used uninitialized error
      axonram: Return directly after a failed kzalloc() in axon_ram_probe()
      axonram: Improve a size determination in axon_ram_probe()
      axonram: Delete an error message for a failed memory allocation in axon_ram_probe()
      powerpc/powernv/npu: Move tlb flush before launching ATSD
      powerpc/macintosh: constify wf_sensor_ops structures
      powerpc/iommu: Use permission-specific DEVICE_ATTR variants
      powerpc/eeh: Delete an error out of memory message at init time
      powerpc/mm: Use seq_putc() in two functions
      macintosh: Convert to using %pOF instead of full_name
      ...
    bac65d9d
book3s_64_mmu_hv.c 52.2 KB