1. 26 Jun, 2015 16 commits
  2. 25 Jun, 2015 9 commits
  3. 23 Jun, 2015 15 commits
    • Adrian Hunter's avatar
      perf tools: Allow auxtrace data alignment · 83b2ea25
      Adrian Hunter authored
      Allow auxtrace data to be a multiple of something other than page size.
      That is needed for BTS where the buffer contains 24-byte records.
      Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Link: http://lkml.kernel.org/r/1432906425-9911-11-git-send-email-adrian.hunter@intel.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      83b2ea25
    • Jiri Olsa's avatar
      perf thread_map: Change map entries into a struct · 38e89d2b
      Jiri Olsa authored
      We need to store command names with the pid. Changing map entries to be
      a struct holding pid. Process name is coming in shortly.
      Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Stephane Eranian <eranian@google.com>
      Link: http://lkml.kernel.org/r/1435012588-9007-2-git-send-email-jolsa@kernel.org
      [ Split providing the set/get accessors from transforming the entries structs ]
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      38e89d2b
    • Jiri Olsa's avatar
      perf thread_map: Don't access the array entries directly · e13798c7
      Jiri Olsa authored
      Instead provide a method to set the array entries, and another to access
      the contents.
      Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Stephane Eranian <eranian@google.com>
      Link: http://lkml.kernel.org/r/1435012588-9007-2-git-send-email-jolsa@kernel.org
      [ Split providing the set/get accessors from transforming the entries structs ]
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      e13798c7
    • He Kuang's avatar
      perf probe: Fix failure to probe events on arm · 7c31bb8c
      He Kuang authored
      Fix failure to probe events on arm, the problem was introduced by commit
      5a51fcd1 ("perf probe: Skip kernel symbols which is out of .text").
      
      For some architectures, the '_etext' label is not in the .text section
      (in the .notes section for arm/arm64).  Labels out of the .text section
      are not loaded as symbols and we get a zero value when looking up its
      addresses, which causes all events to be wrongly skipped.
      
      This patch skips checking the text address range when failing to get the
      address of '_etext' and thus fixes the problem.
      
      The problem can be reproduced on arm as follows:
      
        # perf probe --add='generic_perform_write'
        generic_perform_write+0 is out of .text, skip it.
        Probe point 'generic_perform_write' not found.
          Error: Failed to add events.
      
      After this patch:
      
        # perf probe --add='generic_perform_write'
        Added new event:
          probe:generic_perform_write (on generic_perform_write)
      
        You can now use it in all perf tools, such as:
      
          perf record -e probe:generic_perform_write -aR sleep 1
      Signed-off-by: default avatarHe Kuang <hekuang@huawei.com>
      Acked-by: default avatarMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/r/1434595750-129791-1-git-send-email-hekuang@huawei.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      7c31bb8c
    • Adrian Hunter's avatar
      perf tools: Print a newline before dumping Aggregated stats · fe692ac8
      Adrian Hunter authored
      When dumping events with 'perf report -D' the event print always starts
      with a newline (see dump_event()).
      
      Do the same with the "Aggregated stats" print so that it is not jammed
      up against the last event print.
      Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Link: http://lkml.kernel.org/r/1435045969-15999-2-git-send-email-adrian.hunter@intel.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      fe692ac8
    • Adrian Hunter's avatar
      perf session: Print a newline when dumping PERF_RECORD_FINISHED_ROUND · 5531e162
      Adrian Hunter authored
      With 'perf report -D' the PERF_RECORD_FINISHED_ROUND event was printed
      without a newline, resulting in:
      
      	0x91a18 [0x8]: PERF_RECORD_FINISHED_ROUNDAggregated stats
      
      Other events print their details, but PERF_RECORD_FINISHED_ROUND doesn't
      have any so just add a print for a newline.
      Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Link: http://lkml.kernel.org/r/1435045969-15999-1-git-send-email-adrian.hunter@intel.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      5531e162
    • Andi Kleen's avatar
      perf tools: Allow events with dot · 5b021ddf
      Andi Kleen authored
      The Intel events use a dot to separate event name and unit mask.  Allow
      dot in names in the scanner, and remove special handling of dot as EOF.
      Also remove the hack in jevents to replace dot with underscore. This way
      dotted events can be specified directly by the user.
      
      I'm not fully sure this change to the scanner is correct (what was the
      dot special case good for?), but I haven't found anything that breaks
      with it so far at least.
      Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
      Acked-by: default avatarJiri Olsa <jolsa@redhat.com>
      Acked-by: default avatarNamhyung Kim <namhyung@kernel.org>
      Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: linuxppc-dev@lists.ozlabs.org
      Link: http://lkml.kernel.org/r/1433921123-25327-8-git-send-email-sukadev@linux.vnet.ibm.comSigned-off-by: default avatarSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      5b021ddf
    • Sukadev Bhattiprolu's avatar
      perf pmu: Split perf_pmu__new_alias() · 70c646e0
      Sukadev Bhattiprolu authored
      Separate the event parsing code in perf_pmu__new_alias() out into a
      separate function __perf_pmu__new_alias() so that code can be called
      indepdently.
      
      This is based on an earlier patch from Andi Kleen.
      Signed-off-by: default avatarSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
      Acked-by: default avatarJiri Olsa <jolsa@redhat.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: linuxppc-dev@lists.ozlabs.org
      Link: http://lkml.kernel.org/r/1433921123-25327-5-git-send-email-sukadev@linux.vnet.ibm.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      70c646e0
    • Sukadev Bhattiprolu's avatar
      perf pmu: Use __weak definition from <linux/compiler.h> · c5de47f2
      Sukadev Bhattiprolu authored
      Jiri Olsa pointed out, that the <linux/compiler.h> defines the attribute
      '__weak'. We might as well use that.
      Signed-off-by: default avatarSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
      Acked-by: default avatarJiri Olsa <jolsa@redhat.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: linuxppc-dev@lists.ozlabs.org
      Link: http://lkml.kernel.org/r/1433921123-25327-4-git-send-email-sukadev@linux.vnet.ibm.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      c5de47f2
    • Linus Torvalds's avatar
      Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 407a2c72
      Linus Torvalds authored
      Pull irq updates from Thomas Gleixner:
       "The irq departement delivers:
      
         - plug a potential race related to chained interrupt handlers
      
         - core updates which address the needs of the x86 irqdomain conversion
      
         - new irqchip callback to support affinity settings for VCPUs
      
         - the usual pile of updates to interrupt chip drivers
      
         - a few helper functions to allow further cleanups and
           simplifications
      
        I have a largish pile of coccinelle scripted/verified cleanups and
        simplifications pending on top of that, but I prefer to send that
        towards the end of the merge window when the arch/driver changes have
        hit your tree to avoid API change wreckage as far as possible"
      
      * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
        genirq: Remove bogus restriction in irq_move_mask_irq()
        irqchip: atmel-aic5: Add sama5d2 support
        irq: spear-shirq: Fix race in installing chained IRQ handler
        irq: irq-keystone: Fix race in installing chained IRQ handler
        gpio: gpio-tegra: Fix race in installing chained IRQ handler
        gpio: gpio-mxs: Fix race in installing chained IRQ handler
        gpio: gpio-mxc: Fix race in installing chained IRQ handler
        ARM: gemini: Fix race in installing GPIO chained IRQ handler
        GPU: ipu: Fix race in installing IPU chained IRQ handler
        ARM: sa1100: convert SA11x0 related code to use new chained handler helper
        irq: Add irq_set_chained_handler_and_data()
        irqchip: exynos-combiner: Save IRQ enable set on suspend
        genirq: Introduce helper function irq_data_get_affinity_mask()
        genirq: Introduce helper function irq_data_get_node()
        genirq: Introduce struct irq_common_data to host shared irq data
        genirq: Prevent crash in irq_move_irq()
        genirq: Enhance irq_data_to_desc() to support hierarchy irqdomain
        irqchip: gic: Simplify gic_configure_irq by using IRQCHIP_SET_TYPE_MASKED
        irqchip: renesas: intc-irqpin: Improve binding documentation
        genirq: Set IRQCHIP_SKIP_SET_WAKE for no_irq_chip
        ...
      407a2c72
    • Linus Torvalds's avatar
      Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3a95398f
      Linus Torvalds authored
      Pull NOHZ updates from Thomas Gleixner:
       "A few updates to the nohz infrastructure:
      
         - recursion protection for context tracking
      
         - make the TIF_NOHZ inheritance smarter
      
         - isolate cpus which belong to the NOHZ full set"
      
      * 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        nohz: Set isolcpus when nohz_full is set
        nohz: Add tick_nohz_full_add_cpus_to() API
        context_tracking: Inherit TIF_NOHZ through forks instead of context switches
        context_tracking: Protect against recursion
      3a95398f
    • Linus Torvalds's avatar
      Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 43224b96
      Linus Torvalds authored
      Pull timer updates from Thomas Gleixner:
       "A rather largish update for everything time and timer related:
      
         - Cache footprint optimizations for both hrtimers and timer wheel
      
         - Lower the NOHZ impact on systems which have NOHZ or timer migration
           disabled at runtime.
      
         - Optimize run time overhead of hrtimer interrupt by making the clock
           offset updates smarter
      
         - hrtimer cleanups and removal of restrictions to tackle some
           problems in sched/perf
      
         - Some more leap second tweaks
      
         - Another round of changes addressing the 2038 problem
      
         - First step to change the internals of clock event devices by
           introducing the necessary infrastructure
      
         - Allow constant folding for usecs/msecs_to_jiffies()
      
         - The usual pile of clockevent/clocksource driver updates
      
        The hrtimer changes contain updates to sched, perf and x86 as they
        depend on them plus changes all over the tree to cleanup API changes
        and redundant code, which got copied all over the place.  The y2038
        changes touch s390 to remove the last non 2038 safe code related to
        boot/persistant clock"
      
      * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (114 commits)
        clocksource: Increase dependencies of timer-stm32 to limit build wreckage
        timer: Minimize nohz off overhead
        timer: Reduce timer migration overhead if disabled
        timer: Stats: Simplify the flags handling
        timer: Replace timer base by a cpu index
        timer: Use hlist for the timer wheel hash buckets
        timer: Remove FIFO "guarantee"
        timers: Sanitize catchup_timer_jiffies() usage
        hrtimer: Allow hrtimer::function() to free the timer
        seqcount: Introduce raw_write_seqcount_barrier()
        seqcount: Rename write_seqcount_barrier()
        hrtimer: Fix hrtimer_is_queued() hole
        hrtimer: Remove HRTIMER_STATE_MIGRATE
        selftest: Timers: Avoid signal deadlock in leap-a-day
        timekeeping: Copy the shadow-timekeeper over the real timekeeper last
        clockevents: Check state instead of mode in suspend/resume path
        selftests: timers: Add leap-second timer edge testing to leap-a-day.c
        ntp: Do leapsecond adjustment in adjtimex read path
        time: Prevent early expiry of hrtimers[CLOCK_REALTIME] at the leap second edge
        ntp: Introduce and use SECS_PER_DAY macro instead of 86400
        ...
      43224b96
    • Linus Torvalds's avatar
      Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d70b3ef5
      Linus Torvalds authored
      Pull x86 core updates from Ingo Molnar:
       "There were so many changes in the x86/asm, x86/apic and x86/mm topics
        in this cycle that the topical separation of -tip broke down somewhat -
        so the result is a more traditional architecture pull request,
        collected into the 'x86/core' topic.
      
        The topics were still maintained separately as far as possible, so
        bisectability and conceptual separation should still be pretty good -
        but there were a handful of merge points to avoid excessive
        dependencies (and conflicts) that would have been poorly tested in the
        end.
      
        The next cycle will hopefully be much more quiet (or at least will
        have fewer dependencies).
      
        The main changes in this cycle were:
      
         * x86/apic changes, with related IRQ core changes: (Jiang Liu, Thomas
           Gleixner)
      
           - This is the second and most intrusive part of changes to the x86
             interrupt handling - full conversion to hierarchical interrupt
             domains:
      
                [IOAPIC domain]   -----
                                       |
                [MSI domain]      --------[Remapping domain] ----- [ Vector domain ]
                                       |   (optional)          |
                [HPET MSI domain] -----                        |
                                                               |
                [DMAR domain]     -----------------------------
                                                               |
                [Legacy domain]   -----------------------------
      
             This now reflects the actual hardware and allowed us to distangle
             the domain specific code from the underlying parent domain, which
             can be optional in the case of interrupt remapping.  It's a clear
             separation of functionality and removes quite some duct tape
             constructs which plugged the remap code between ioapic/msi/hpet
             and the vector management.
      
           - Intel IOMMU IRQ remapping enhancements, to allow direct interrupt
             injection into guests (Feng Wu)
      
         * x86/asm changes:
      
           - Tons of cleanups and small speedups, micro-optimizations.  This
             is in preparation to move a good chunk of the low level entry
             code from assembly to C code (Denys Vlasenko, Andy Lutomirski,
             Brian Gerst)
      
           - Moved all system entry related code to a new home under
             arch/x86/entry/ (Ingo Molnar)
      
           - Removal of the fragile and ugly CFI dwarf debuginfo annotations.
             Conversion to C will reintroduce many of them - but meanwhile
             they are only getting in the way, and the upstream kernel does
             not rely on them (Ingo Molnar)
      
           - NOP handling refinements. (Borislav Petkov)
      
         * x86/mm changes:
      
           - Big PAT and MTRR rework: making the code more robust and
             preparing to phase out exposing direct MTRR interfaces to drivers -
             in favor of using PAT driven interfaces (Toshi Kani, Luis R
             Rodriguez, Borislav Petkov)
      
           - New ioremap_wt()/set_memory_wt() interfaces to support
             Write-Through cached memory mappings.  This is especially
             important for good performance on NVDIMM hardware (Toshi Kani)
      
         * x86/ras changes:
      
           - Add support for deferred errors on AMD (Aravind Gopalakrishnan)
      
             This is an important RAS feature which adds hardware support for
             poisoned data.  That means roughly that the hardware marks data
             which it has detected as corrupted but wasn't able to correct, as
             poisoned data and raises an APIC interrupt to signal that in the
             form of a deferred error.  It is the OS's responsibility then to
             take proper recovery action and thus prolonge system lifetime as
             far as possible.
      
           - Add support for Intel "Local MCE"s: upcoming CPUs will support
             CPU-local MCE interrupts, as opposed to the traditional system-
             wide broadcasted MCE interrupts (Ashok Raj)
      
           - Misc cleanups (Borislav Petkov)
      
         * x86/platform changes:
      
           - Intel Atom SoC updates
      
        ... and lots of other cleanups, fixlets and other changes - see the
        shortlog and the Git log for details"
      
      * 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (222 commits)
        x86/hpet: Use proper hpet device number for MSI allocation
        x86/hpet: Check for irq==0 when allocating hpet MSI interrupts
        x86/mm/pat, drivers/infiniband/ipath: Use arch_phys_wc_add() and require PAT disabled
        x86/mm/pat, drivers/media/ivtv: Use arch_phys_wc_add() and require PAT disabled
        x86/platform/intel/baytrail: Add comments about why we disabled HPET on Baytrail
        genirq: Prevent crash in irq_move_irq()
        genirq: Enhance irq_data_to_desc() to support hierarchy irqdomain
        iommu, x86: Properly handle posted interrupts for IOMMU hotplug
        iommu, x86: Provide irq_remapping_cap() interface
        iommu, x86: Setup Posted-Interrupts capability for Intel iommu
        iommu, x86: Add cap_pi_support() to detect VT-d PI capability
        iommu, x86: Avoid migrating VT-d posted interrupts
        iommu, x86: Save the mode (posted or remapped) of an IRTE
        iommu, x86: Implement irq_set_vcpu_affinity for intel_ir_chip
        iommu: dmar: Provide helper to copy shared irte fields
        iommu: dmar: Extend struct irte for VT-d Posted-Interrupts
        iommu: Add new member capability to struct irq_remap_ops
        x86/asm/entry/64: Disentangle error_entry/exit gsbase/ebx/usermode code
        x86/asm/entry/32: Shorten __audit_syscall_entry() args preparation
        x86/asm/entry/32: Explain reloading of registers after __audit_syscall_entry()
        ...
      d70b3ef5
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 650ec5a6
      Linus Torvalds authored
      Pull x86 warning fixlet from Ingo Molnar:
       "A build fix for certain (rare) variants of binutils that did not make
        it into v4.1"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/boot: Fix overflow warning with 32-bit binutils
      650ec5a6
    • Linus Torvalds's avatar
      Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 35ffccdb
      Linus Torvalds authored
      Pul x86 microcode updates from Ingo Molnar:
       "x86 microcode loader updates from Borislav Petkov:
      
         - early parsing of the built-in microcode
      
         - cleanups
      
         - misc smaller fixes"
      
      * 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/microcode: Correct CPU family related variable types
        x86/microcode: Disable builtin microcode loading on 32-bit for now
        x86/microcode/intel: Rename get_matching_sig()
        x86/microcode/intel: Simplify get_matching_sig()
        x86/microcode/intel: Simplify update_match_cpu()
        x86/microcode/intel: Rename get_matching_microcode
        x86/cpu/microcode: Zap changelog
        x86/microcode: Parse built-in microcode early
        x86/microcode/intel: Remove unused @rev arg of get_matching_sig()
        x86/microcode/intel: Get rid of revision_is_newer()
      35ffccdb