These patches try to support context tracking for Power arch, beginning with 64-bit pSeries. The codes are ported from that of the x86_64, and in each patch, I listed the corresponding patch for x86.
Would you please help review and give your comments? v2: I rebased the patches against 3.9-rcs, and also added a patch to replace the exception handling with the generic code in tip timers/nohz. I assume these patches would get in through powerpc tree, so I didn't combine the new patch (#6) with the original one (#2). So that if powerpc tree picks these, it could pick the first five patches, and apply patch #6 later when the dependency enters into powerpc tree (maybe on some 3.10-rcs). I'm also wondering whether it is possible for these to go through tip timers/nohz, so for now, patches #6 and #2 could be combined into one, and no need to worry about the issues caused by arch/common code merging. And it might also make future changes easier. Thanks, Zhong Li Zhong (6): powerpc: Syscall hooks for context tracking subsystem powerpc: Exception hooks for context tracking subsystem powerpc: Exit user context on notify resume powerpc: Use the new schedule_user API on userspace preemption powerpc: select HAVE_CONTEXT_TRACKING for pSeries powerpc: Use generic code for exception handling arch/powerpc/include/asm/context_tracking.h | 10 +++ arch/powerpc/include/asm/thread_info.h | 7 ++- arch/powerpc/kernel/entry_64.S | 3 +- arch/powerpc/kernel/ptrace.c | 5 ++ arch/powerpc/kernel/signal.c | 5 ++ arch/powerpc/kernel/traps.c | 91 ++++++++++++++++++++------- arch/powerpc/mm/fault.c | 16 ++++- arch/powerpc/mm/hash_utils_64.c | 38 ++++++++--- arch/powerpc/platforms/pseries/Kconfig | 1 + 9 files changed, 140 insertions(+), 36 deletions(-) create mode 100644 arch/powerpc/include/asm/context_tracking.h -- 1.7.9.5 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev