• Linus Torvalds's avatar
    Merge tag 'powerpc-4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 38705613
    Linus Torvalds authored
    Pull powerpc updates from Michael Ellerman:
     "Highlights include:
       - Support for direct mapped LPC on POWER9, giving Linux direct access
         to devices that may be on there such as a UART.
       - Memory hotplug support for the Power9 Radix MMU.
       - Add new AUX vectors describing the processor's cache geometry, to
         be used by glibc.
       - The ability for a guest to ask the hypervisor to resize the guest's
         hash table, and in addition support for doing so automatically when
         memory is hotplugged into/out-of the guest. This allows the hash
         table to be sized based on the current memory usage of the guest,
         rather than the maximum possible memory usage.
       - Implementation of optprobes (kprobe optimisation) for powerpc.
      In addition there's the topic branch shared with the KVM tree, which
      includes support for guests to use the Radix MMU on Power9.
      Thanks to:
        Alistair Popple, Andrew Donnellan, Aneesh Kumar K.V, Anju T, Anton
        Blanchard, Benjamin Herrenschmidt, Chris Packham, Daniel Axtens,
        Daniel Borkmann, David Gibson, Finn Thain, Gautham R. Shenoy, Gavin
        Shan, Greg Kurz, Joel Stanley, John Allen, Madhavan Srinivasan,
        Mahesh Salgaonkar, Markus Elfring, Michael Neuling, Nathan Fontenot,
        Naveen N. Rao, Nicholas Piggin, Paul Mackerras, Ravi Bangoria, Reza
        Arbab, Shailendra Singh, Vaibhav Jain, Wei Yongjun"
    * tag 'powerpc-4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (129 commits)
      powerpc/mm/radix: Skip ptesync in pte update helpers
      powerpc/mm/radix: Use ptep_get_and_clear_full when clearing pte for full mm
      powerpc/mm/radix: Update pte update sequence for pte clear case
      powerpc/mm: Update PROTFAULT handling in the page fault path
      powerpc/xmon: Fix data-breakpoint
      powerpc/mm: Fix build break with BOOK3S_64=n and MEMORY_HOTPLUG=y
      powerpc/mm: Fix build break when CMA=n && SPAPR_TCE_IOMMU=y
      powerpc/mm: Fix build break with RADIX=y & HUGETLBFS=n
      powerpc/pseries: Fix typo in parameter description
      powerpc/kprobes: Remove kprobe_exceptions_notify()
      kprobes: Introduce weak variant of kprobe_exceptions_notify()
      powerpc/ftrace: Fix confusing help text for DISABLE_MPROFILE_KERNEL
      powerpc/powernv: Fix opal_exit tracepoint opcode
      powerpc: Add a prototype for mcount() so it can be versioned
      powerpc: Drop GPL from of_node_to_nid() export to match other arches
      powerpc/kprobes: Optimize kprobe in kretprobe_trampoline()
      powerpc/kprobes: Implement Optprobes
      powerpc/kprobes: Fixes for kprobe_lookup_name() on BE
      powerpc: Add helper to check if offset is within relative branch range
      powerpc/bpf: Introduce __PPC_SH64()
kprobes.c 61.6 KB