• Linus Torvalds's avatar
    Merge tag 'arm64-perf' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 2c856e14
    Linus Torvalds authored
    Pull arm[64] perf updates from Will Deacon:
     "I have another mixed bag of ARM-related perf patches here.
    
      It's about 25% CPU and 75% interconnect, but with drivers/bus/
      languishing without an obvious maintainer or tree, Olof and I agreed
      to keep all of these PMU patches together.  I suspect a whole load of
      code from drivers/bus/arm-* can be moved under drivers/perf/, so
      that's on the radar for the future.
    
      Summary:
    
       - Initial support for ARMv8.1 CPU PMUs
    
       - Support for the CPU PMU in Cavium ThunderX
    
       - CPU PMU support for systems running 32-bit Linux in secure mode
    
       - Support for the system PMU in ARM CCI-550 (Cache Coherent Interconnect)"
    
    * tag 'arm64-perf' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (26 commits)
      drivers/perf: arm_pmu: avoid NULL dereference when not using devicetree
      arm64: perf: Extend ARMV8_EVTYPE_MASK to include PMCR.LC
      arm-cci: remove unused variable
      arm-cci: don't return value from void function
      arm-cci: make private functions static
      arm-cci: CoreLink CCI-550 PMU driver
      arm-cci500: Rearrange PMU driver for code sharing with CCI-550 PMU
      arm-cci: CCI-500: Work around PMU counter writes
      arm-cci: Provide hook for writing to PMU counters
      arm-cci: Add helper to enable PMU without synchornising counters
      arm-cci: Add routines to save/restore all counters
      arm-cci: Get the status of a counter
      arm-cci: write_counter: Remove redundant check
      arm-cci: Delay PMU counter writes to pmu::pmu_enable
      arm-cci: Refactor CCI PMU enable/disable methods
      arm-cci: Group writes to counter
      arm-cci: fix handling cpumask_any_but return value
      arm-cci: simplify sysfs attr handling
      drivers/perf: arm_pmu: implement CPU_PM notifier
      arm64: dts: Add Cavium ThunderX specific PMU
      ...
    2c856e14
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