Skip to content
  • Linus Torvalds's avatar
    Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc · 9d3cae26
    Linus Torvalds authored
    Pull powerpc updates from Benjamin Herrenschmidt:
     "So from the depth of frozen Minnesota, here's the powerpc pull request
      for 3.9.  It has a few interesting highlights, in addition to the
      usual bunch of bug fixes, minor updates, embedded device tree updates
      and new boards:
    
       - Hand tuned asm implementation of SHA1 (by Paulus & Michael
         Ellerman)
    
       - Support for Doorbell interrupts on Power8 (kind of fast
         thread-thread IPIs) by Ian Munsie
    
       - Long overdue cleanup of the way we handle relocation of our open
         firmware trampoline (prom_init.c) on 64-bit by Anton Blanchard
    
       - Support for saving/restoring & context switching the PPR (Processor
         Priority Register) on server processors that support it.  This
         allows the kernel to preserve thread priorities established by
         userspace.  By Haren Myneni.
    
       - DAWR (new watchpoint facility) support on Power8 by Michael Neuling
    
       - Ability to change the DSCR (Data Stream Control Register) which
         controls cache prefetching on a running process via ptrace by
         Alexey Kardashevskiy
    
       - Support for context switching the TAR register on Power8 (new
         branch target register meant to be used by some new specific
         userspace perf event interrupt facility which is yet to be enabled)
         by Ian Munsie.
    
       - Improve preservation of the CFAR register (which captures the
         origin of a branch) on various exception conditions by Paulus.
    
       - Move the Bestcomm DMA driver from arch powerpc to drivers/dma where
         it belongs by Philippe De Muyter
    
       - Support for Transactional Memory on Power8 by Michael Neuling
         (based on original work by Matt Evans).  For those curious about
         the feature, the patch contains a pretty good description."
    
    (See commit db8ff907: "powerpc: Documentation for transactional
    memory on powerpc" for the mentioned description added to the file
    Documentation/powerpc/transactional_memory.txt)
    
    * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (140 commits)
      powerpc/kexec: Disable hard IRQ before kexec
      powerpc/85xx: l2sram - Add compatible string for BSC9131 platform
      powerpc/85xx: bsc9131 - Correct typo in SDHC device node
      powerpc/e500/qemu-e500: enable coreint
      powerpc/mpic: allow coreint to be determined by MPIC version
      powerpc/fsl_pci: Store the pci ctlr device ptr in the pci ctlr struct
      powerpc/85xx: Board support for ppa8548
      powerpc/fsl: remove extraneous DIU platform functions
      arch/powerpc/platforms/85xx/p1022_ds.c: adjust duplicate test
      powerpc: Documentation for transactional memory on powerpc
      powerpc: Add transactional memory to pseries and ppc64 defconfigs
      powerpc: Add config option for transactional memory
      powerpc: Add transactional memory to POWER8 cpu features
      powerpc: Add new transactional memory state to the signal context
      powerpc: Hook in new transactional memory code
      powerpc: Routines for FP/VSX/VMX unavailable during a transaction
      powerpc: Add transactional memory unavaliable execption handler
      powerpc: Add reclaim and recheckpoint functions for context switching transactional memory processes
      powerpc: Add FP/VSX and VMX register load functions for transactional memory
      powerpc: Add helper functions for transactional memory context switching
      ...
    9d3cae26