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2015-02-15Merge tag 'char-misc-3.20-rc1' of ↵Linus Torvalds3-32/+23
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc patches from Greg KH: "Here's the big char/misc driver update for 3.20-rc1. Lots of little things in here, all described in the changelog. Nothing major or unusual, except maybe the binder selinux stuff, which was all acked by the proper selinux people and they thought it best to come through this tree. All of this has been in linux-next with no reported issues for a while" * tag 'char-misc-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (90 commits) coresight: fix function etm_writel_cp14() parameter order coresight-etm: remove check for unknown Kconfig macro coresight: fixing CPU hwid lookup in device tree coresight: remove the unnecessary function coresight_is_bit_set() coresight: fix the debug AMBA bus name coresight: remove the extra spaces coresight: fix the link between orphan connection and newly added device coresight: remove the unnecessary replicator property coresight: fix the replicator subtype value pdfdocs: Fix 'make pdfdocs' failure for 'uio-howto.tmpl' mcb: Fix error path of mcb_pci_probe virtio/console: verify device has config space ti-st: clean up data types (fix harmless memory corruption) mei: me: release hw from reset only during the reset flow mei: mask interrupt set bit on clean reset bit extcon: max77693: Constify struct regmap_config extcon: adc-jack: Release IIO channel on driver remove extcon: Remove duplicated include from extcon-class.c Drivers: hv: vmbus: hv_process_timer_expiration() can be static Drivers: hv: vmbus: serialize Offer and Rescind offer ...
2015-02-15Merge tag 'usb-3.20-rc1' of ↵Linus Torvalds3-13/+20
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB patches from Greg KH: "Here's the big pull request for the USB driver tree for 3.20-rc1. Nothing major happening here, just lots of gadget driver updates, new device ids, and a bunch of cleanups. All of these have been in linux-next for a while with no reported issues" * tag 'usb-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (299 commits) usb: musb: fix device hotplug behind hub usb: dwc2: Fix a bug in reading the endpoint directions from reg. staging: emxx_udc: fix the build error usb: Retry port status check on resume to work around RH bugs Revert "usb: Reset USB-3 devices on USB-3 link bounce" uhci-hub: use HUB_CHAR_* usb: kconfig: replace PPC_OF with PPC ehci-pci: disable for Intel MID platforms (update) usb: gadget: Kconfig: use bool instead of boolean usb: musb: blackfin: remove incorrect __exit_p() USB: fix use-after-free bug in usb_hcd_unlink_urb() ehci-pci: disable for Intel MID platforms usb: host: pci_quirks: joing string literals USB: add flag for HCDs that can't receive wakeup requests (isp1760-hcd) USB: usbfs: allow URBs to be reaped after disconnection cdc-acm: kill unnecessary messages cdc-acm: add sanity checks usb: phy: phy-generic: Fix USB PHY gpio reset usb: dwc2: fix USB core dependencies usb: renesas_usbhs: fix NULL pointer dereference in dma_release_channel() ...
2015-02-13Merge tag 'pm+acpi-3.20-rc1-2' of ↵Linus Torvalds2-158/+254
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI and power management updates from Rafael Wysocki: "These are two reverts related to system suspend breakage by one of a recent commits, a fix for a recently introduced bug in devfreq and a bunch of other things that didn't make it into my previous pull request, but otherwise are ready to go. Specifics: - Revert two ACPI EC driver commits, one that broke system suspend on Acer Aspire S5 and one that depends on it (Rafael J Wysocki). - Fix a typo leading to an incorrect check in the exynos-ppmu devfreq driver (Dan Carpenter). - Add support for one more Broadwell CPU model to intel_idle (Len Brown). - Fix an obscure problem with state transitions related to interrupts in the speedstep-smi cpufreq driver (Mikulas Patocka). - Remove some unnecessary messages related to the "out of memory" condition from the core PM code (Quentin Lambert). - Update turbostat parameters and documentation, add support for one more Broadwell CPU model to it and modify it to skip printing disabled package C-states (Len Brown)" * tag 'pm+acpi-3.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / devfreq: event: testing the wrong variable cpufreq: speedstep-smi: enable interrupts when waiting PM / OPP / clk: Remove unnecessary OOM message Revert "ACPI / EC: Add query flushing support" Revert "ACPI / EC: Add GPE reference counting debugging messages" tools/power turbostat: support additional Broadwell model intel_idle: support additional Broadwell model tools/power turbostat: update parameters, documentation tools/power turbostat: Skip printing disabled package C-states
2015-02-13Merge branches 'pm-cpufreq', 'pm-cpuidle', 'pm-devfreq', 'pm-opp' and 'pm-tools'Rafael J. Wysocki2-158/+254
* pm-cpufreq: cpufreq: speedstep-smi: enable interrupts when waiting * pm-cpuidle: intel_idle: support additional Broadwell model * pm-devfreq: PM / devfreq: event: testing the wrong variable * pm-opp: PM / OPP / clk: Remove unnecessary OOM message * pm-tools: tools/power turbostat: support additional Broadwell model tools/power turbostat: update parameters, documentation tools/power turbostat: Skip printing disabled package C-states
2015-02-12Merge tag 'ktest-v3.20' of ↵Linus Torvalds1-30/+229
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest Pull ktest updates from Steven Rostedt: "The following ktest updates were done: o Added timings to various parts of the test (build, install, boot, tests) and report them so that the users can keep track of changes. o Josh Poimboeuf fixed the console output to work better with virtual machine targets. o Various clean ups and fixes" * tag 'ktest-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: ktest: Place quotes around item variable ktest: Cleanup terminal on dodie() failure ktest: Print build,install,boot,test times at success and failure ktest: Enable user input to the console ktest: Give console process a dedicated tty ktest: Rename start_monitor_and_boot to start_monitor_and_install ktest: Show times for build, install, boot and test ktest: Restore tty settings after closing console ktest: Add timings for commands
2015-02-11Merge branch 'akpm' (patches from Andrew)Linus Torvalds1-0/+1
Merge second set of updates from Andrew Morton: "More of MM" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (83 commits) mm/nommu.c: fix arithmetic overflow in __vm_enough_memory() mm/mmap.c: fix arithmetic overflow in __vm_enough_memory() vmstat: Reduce time interval to stat update on idle cpu mm/page_owner.c: remove unnecessary stack_trace field Documentation/filesystems/proc.txt: describe /proc/<pid>/map_files mm: incorporate read-only pages into transparent huge pages vmstat: do not use deferrable delayed work for vmstat_update mm: more aggressive page stealing for UNMOVABLE allocations mm: always steal split buddies in fallback allocations mm: when stealing freepages, also take pages created by splitting buddy page mincore: apply page table walker on do_mincore() mm: /proc/pid/clear_refs: avoid split_huge_page() mm: pagewalk: fix misbehavior of walk_page_range for vma(VM_PFNMAP) mempolicy: apply page table walker on queue_pages_range() arch/powerpc/mm/subpage-prot.c: use walk->vma and walk_page_vma() memcg: cleanup preparation for page table walk numa_maps: remove numa_maps->vma numa_maps: fix typo in gather_hugetbl_stats pagemap: use walk->vma instead of calling find_vma() clear_refs: remove clear_refs_private->vma and introduce clear_refs_test_walk() ...
2015-02-11Merge tag 'powerpc-3.20-1' of ↵Linus Torvalds14-4/+393
git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux Pull powerpc updates from Michael Ellerman: - Update of all defconfigs - Addition of a bunch of config options to modernise our defconfigs - Some PS3 updates from Geoff - Optimised memcmp for 64 bit from Anton - Fix for kprobes that allows 'perf probe' to work from Naveen - Several cxl updates from Ian & Ryan - Expanded support for the '24x7' PMU from Cody & Sukadev - Freescale updates from Scott: "Highlights include 8xx optimizations, some more work on datapath device tree content, e300 machine check support, t1040 corenet error reporting, and various cleanups and fixes" * tag 'powerpc-3.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (102 commits) cxl: Add missing return statement after handling AFU errror cxl: Fail AFU initialisation if an invalid configuration record is found cxl: Export optional AFU configuration record in sysfs powerpc/mm: Warn on flushing tlb page in kernel context powerpc/powernv: Add OPAL soft-poweroff routine powerpc/perf/hv-24x7: Document sysfs event description entries powerpc/perf/hv-gpci: add the remaining gpci requests powerpc/perf/{hv-gpci, hv-common}: generate requests with counters annotated powerpc/perf/hv-24x7: parse catalog and populate sysfs with events perf: define EVENT_DEFINE_RANGE_FORMAT_LITE helper perf: add PMU_EVENT_ATTR_STRING() helper perf: provide sysfs_show for struct perf_pmu_events_attr powerpc/kernel: Avoid initializing device-tree pointer twice powerpc: Remove old compile time disabled syscall tracing code powerpc/kernel: Make syscall_exit a local label cxl: Fix device_node reference counting powerpc/mm: bail out early when flushing TLB page powerpc: defconfigs: add MTD_SPI_NOR (new dependency for M25P80) perf/powerpc: reset event hw state when adding it to the PMU powerpc/qe: Use strlcpy() ...
2015-02-12Merge branch 'turbostat' of ↵Rafael J. Wysocki2-158/+254
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux into pm-tools Pull additional turbostat updates for v3.20 from Len Brown. * 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: support additional Broadwell model tools/power turbostat: update parameters, documentation tools/power turbostat: Skip printing disabled package C-states
2015-02-11mm:add KPF_ZERO_PAGE flag for /proc/kpageflagsWang, Yalin1-0/+1
Add KPF_ZERO_PAGE flag for zero_page, so that userspace processes can detect zero_page in /proc/kpageflags, and then do memory analysis more accurately. Signed-off-by: Yalin Wang <yalin.wang@sonymobile.com> Acked-by: Kirill A. Shutemov <kirill@shutemov.name> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-10Merge tag 'pm+acpi-3.20-rc1' of ↵Linus Torvalds14-107/+321
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management updates from Rafael Wysocki: "We have a few new features this time, including a new SFI-based cpufreq driver, a new devfreq driver for Tegra Activity Monitor, a new devfreq class for providing its governors with raw utilization data and a new ACPI driver for AMD SoCs. Still, the majority of changes here are reworks of existing code to make it more straightforward or to prepare it for implementing new features on top of it. The primary example is the rework of ACPI resources handling from Jiang Liu, Thomas Gleixner and Lv Zheng with support for IOAPIC hotplug implemented on top of it, but there is quite a number of changes of this kind in the cpufreq core, ACPICA, ACPI EC driver, ACPI processor driver and the generic power domains core code too. The most active developer is Viresh Kumar with his cpufreq changes. Specifics: - Rework of the core ACPI resources parsing code to fix issues in it and make using resource offsets more convenient and consolidation of some resource-handing code in a couple of places that have grown analagous data structures and code to cover the the same gap in the core (Jiang Liu, Thomas Gleixner, Lv Zheng). - ACPI-based IOAPIC hotplug support on top of the resources handling rework (Jiang Liu, Yinghai Lu). - ACPICA update to upstream release 20150204 including an interrupt handling rework that allows drivers to install raw handlers for ACPI GPEs which then become entirely responsible for the given GPE and the ACPICA core code won't touch it (Lv Zheng, David E Box, Octavian Purdila). - ACPI EC driver rework to fix several concurrency issues and other problems related to events handling on top of the ACPICA's new support for raw GPE handlers (Lv Zheng). - New ACPI driver for AMD SoCs analogous to the LPSS (Low-Power Subsystem) driver for Intel chips (Ken Xue). - Two minor fixes of the ACPI LPSS driver (Heikki Krogerus, Jarkko Nikula). - Two new blacklist entries for machines (Samsung 730U3E/740U3E and 510R) where the native backlight interface doesn't work correctly while the ACPI one does (Hans de Goede). - Rework of the ACPI processor driver's handling of idle states to make the code more straightforward and less bloated overall (Rafael J Wysocki). - Assorted minor fixes related to ACPI and SFI (Andreas Ruprecht, Andy Shevchenko, Hanjun Guo, Jan Beulich, Rafael J Wysocki, Yaowei Bai). - PCI core power management modification to avoid resuming (some) runtime-suspended devices during system suspend if they are in the right states already (Rafael J Wysocki). - New SFI-based cpufreq driver for Intel platforms using SFI (Srinidhi Kasagar). - cpufreq core fixes, cleanups and simplifications (Viresh Kumar, Doug Anderson, Wolfram Sang). - SkyLake CPU support and other updates for the intel_pstate driver (Kristen Carlson Accardi, Srinivas Pandruvada). - cpufreq-dt driver cleanup (Markus Elfring). - Init fix for the ARM big.LITTLE cpuidle driver (Sudeep Holla). - Generic power domains core code fixes and cleanups (Ulf Hansson). - Operating Performance Points (OPP) core code cleanups and kernel documentation update (Nishanth Menon). - New dabugfs interface to make the list of PM QoS constraints available to user space (Nishanth Menon). - New devfreq driver for Tegra Activity Monitor (Tomeu Vizoso). - New devfreq class (devfreq_event) to provide raw utilization data to devfreq governors (Chanwoo Choi). - Assorted minor fixes and cleanups related to power management (Andreas Ruprecht, Krzysztof Kozlowski, Rickard Strandqvist, Pavel Machek, Todd E Brandt, Wonhong Kwon). - turbostat updates (Len Brown) and cpupower Makefile improvement (Sriram Raghunathan)" * tag 'pm+acpi-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (151 commits) tools/power turbostat: relax dependency on APERF_MSR tools/power turbostat: relax dependency on invariant TSC Merge branch 'pci/host-generic' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci into acpi-resources tools/power turbostat: decode MSR_*_PERF_LIMIT_REASONS tools/power turbostat: relax dependency on root permission ACPI / video: Add disable_native_backlight quirk for Samsung 510R ACPI / PM: Remove unneeded nested #ifdef USB / PM: Remove unneeded #ifdef and associated dead code intel_pstate: provide option to only use intel_pstate with HWP ACPI / EC: Add GPE reference counting debugging messages ACPI / EC: Add query flushing support ACPI / EC: Refine command storm prevention support ACPI / EC: Add command flushing support. ACPI / EC: Introduce STARTED/STOPPED flags to replace BLOCKED flag ACPI: add AMD ACPI2Platform device support for x86 system ACPI / table: remove duplicate NULL check for the handler of acpi_table_parse() ACPI / EC: Update revision due to raw handler mode. ACPI / EC: Reduce ec_poll() by referencing the last register access timestamp. ACPI / EC: Fix several GPE handling issues by deploying ACPI_GPE_DISPATCH_RAW_HANDLER mode. ACPICA: Events: Enable APIs to allow interrupt/polling adaptive request based GPE handling model ...
2015-02-10tools/power turbostat: support additional Broadwell modelLen Brown1-1/+4
Signed-off-by: Len Brown <len.brown@intel.com>
2015-02-10Merge branch 'pm-tools'Rafael J. Wysocki3-96/+310
* pm-tools: tools/power turbostat: relax dependency on APERF_MSR tools/power turbostat: relax dependency on invariant TSC tools/power turbostat: decode MSR_*_PERF_LIMIT_REASONS tools/power turbostat: relax dependency on root permission cpupower Makefile change to help run the tool without 'make install'
2015-02-10Merge branch 'acpica'Rafael J. Wysocki11-11/+11
* acpica: ACPICA: Events: Enable APIs to allow interrupt/polling adaptive request based GPE handling model ACPICA: Events: Introduce acpi_set_gpe()/acpi_finish_gpe() to reduce divergences ACPICA: Events: Introduce ACPI_GPE_DISPATCH_RAW_HANDLER to fix 2 issues for the current GPE APIs ACPICA: Update version to 20150204 ACPICA: Update Copyright headers to 2015 ACPICA: Hardware: Cast GPE enable_mask before storing ACPICA: Events: Cleanup GPE dispatcher type obtaining code ACPICA: Events: Cleanup to move acpi_gbl_global_event_handler invocation out of acpi_ev_gpe_dispatch() ACPICA: Events: Cleanup of resetting the GPE handler to NULL before removing ACPICA: Events: Fix uninitialized variable ACPICA: Events: Remove acpi_ev_valid_gpe_event() due to current restriction ACPICA: Events: Remove duplicated sanity check in acpi_ev_enable_gpe() ACPICA: Events: Back port "ACPICA: Save current masks of enabled GPEs after enable register writes" ACPICA: Resources: Provide common part for struct acpi_resource_address structures. ACPI: Introduce acpi_unload_parent_table() usages in Linux kernel ACPICA: take ACPI_MTX_INTERPRETER in acpi_unload_table_id()
2015-02-10tools/power turbostat: update parameters, documentationLen Brown2-87/+136
Long format options added, though the short ones should still work. eg. the new "--Counter 0x10" is the same as the old "-C 0x10" Note this Incompatibility: Old: -v displayed verbose debug output New: -v and --version simpaly display version Additional parameters: -d and --debug display verbose debug output -h and --help display a help message Updated turbosat.8 man page accordingly. Signed-off-by: Len Brown <len.brown@intel.com>
2015-02-09tools/power turbostat: Skip printing disabled package C-statesLen Brown1-72/+116
Replaced previously open-coded Package C-state Limit decoding with table-driven decoding. In doing so, updated to match January 2015 "Intel(R) 64 and IA-23 Architectures Software Developer's Manual". In the past, turbostat would print package C-state residency columns for all package states supported by the model's architecture, even though a particular SKU may not support them, or they may be disabled by the BIOS. Now turbostat will skip printing colunns if MSRs indicate that they are not enabled. eg. many SKUs don't support PC7, and so that column will no longer be printed. Signed-off-by: Len Brown <len.brown@intel.com>
2015-02-09Merge branch 'perf-core-for-linus' of ↵Linus Torvalds59-498/+1175
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "Kernel side changes: - AMD range breakpoints support: Extend breakpoint tools and core to support address range through perf event with initial backend support for AMD extended breakpoints. The syntax is: perf record -e mem:addr/len:type For example set write breakpoint from 0x1000 to 0x1200 (0x1000 + 512) perf record -e mem:0x1000/512:w - event throttling/rotating fixes - various event group handling fixes, cleanups and general paranoia code to be more robust against bugs in the future. - kernel stack overhead fixes User-visible tooling side changes: - Show precise number of samples in at the end of a 'record' session, if processing build ids, since we will then traverse the whole perf.data file and see all the PERF_RECORD_SAMPLE records, otherwise stop showing the previous off-base heuristicly counted number of "samples" (Namhyung Kim). - Support to read compressed module from build-id cache (Namhyung Kim) - Enable sampling loads and stores simultaneously in 'perf mem' (Stephane Eranian) - 'perf diff' output improvements (Namhyung Kim) - Fix error reporting for evsel pgfault constructor (Arnaldo Carvalho de Melo) Tooling side infrastructure changes: - Cache eh/debug frame offset for dwarf unwind (Namhyung Kim) - Support parsing parameterized events (Cody P Schafer) - Add support for IP address formats in libtraceevent (David Ahern) Plus other misc fixes" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (48 commits) perf: Decouple unthrottling and rotating perf: Drop module reference on event init failure perf: Use POLLIN instead of POLL_IN for perf poll data in flag perf: Fix put_event() ctx lock perf: Fix move_group() order perf: Fix event->ctx locking perf: Add a bit of paranoia perf symbols: Convert lseek + read to pread perf tools: Use perf_data_file__fd() consistently perf symbols: Support to read compressed module from build-id cache perf evsel: Set attr.task bit for a tracking event perf header: Set header version correctly perf record: Show precise number of samples perf tools: Do not use __perf_session__process_events() directly perf callchain: Cache eh/debug frame offset for dwarf unwind perf tools: Provide stub for missing pthread_attr_setaffinity_np perf evsel: Don't rely on malloc working for sz 0 tools lib traceevent: Add support for IP address formats perf ui/tui: Show fatal error message only if exists perf tests: Fix typo in sample-parsing.c ...
2015-02-10Merge branch 'turbostat' of ↵Rafael J. Wysocki2-95/+309
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux into pm-tools Pull turbostate changes for v3.20 from Len Brown. * 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: relax dependency on APERF_MSR tools/power turbostat: relax dependency on invariant TSC tools/power turbostat: decode MSR_*_PERF_LIMIT_REASONS tools/power turbostat: relax dependency on root permission
2015-02-09tools/power turbostat: relax dependency on APERF_MSRLen Brown2-45/+68
While turbostat is significantly less useful on systems with no APERF_MSR, it seems more friendly to run on such systems and report what we can, rather than refusing to run. Update man page to reflect recent changes. Signed-off-by: Len Brown <len.brown@intel.com>
2015-02-09tools/power turbostat: relax dependency on invariant TSCLen Brown1-39/+75
Turbostat can be useful on systems that do not support invariant TSC, so allow it to run on those systgems. All arithmetic in turbostat using the TSC value is per-processsor, so it does not depend on the TSC values being in sync acrosss processors. Turbostat uses gettimeofday() for the measurement interval rather than using the TSC directly, so that key metric is also immune from variable TSC. Turbostat prints a TSC sanity check column: TSC_MHz = TSC_delta/interval If this column is constant and is close to the processor base frequency, then the TSC is behaving properly. The other key turbostat columns are calculated this way: Avg_Mhz = APERF_delta/interval %Busy = MPERF_delta/TSC_delta Bzy_MHz = TSC_delta/APERF_delta/MPERF_delta/interval Tested on Core2 and Core2-Xeon, and so this patch includes a few other changes to remove the assumption that target systems are Nehalem and newer. Signed-off-by: Len Brown <len.brown@intel.com>
2015-02-09Merge back earlier 'pm-tools' material for v3.20Rafael J. Wysocki1-1/+1
2015-02-09Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds5-13/+38
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: "The main RCU changes in this cycle are: - Documentation updates. - Miscellaneous fixes. - Preemptible-RCU fixes, including fixing an old bug in the interaction of RCU priority boosting and CPU hotplug. - SRCU updates. - RCU CPU stall-warning updates. - RCU torture-test updates" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits) rcu: Initialize tiny RCU stall-warning timeouts at boot rcu: Fix RCU CPU stall detection in tiny implementation rcu: Add GP-kthread-starvation checks to CPU stall warnings rcu: Make cond_resched_rcu_qs() apply to normal RCU flavors rcu: Optionally run grace-period kthreads at real-time priority ksoftirqd: Use new cond_resched_rcu_qs() function ksoftirqd: Enable IRQs and call cond_resched() before poking RCU rcutorture: Add more diagnostics in rcu_barrier() test failure case torture: Flag console.log file to prevent holdovers from earlier runs torture: Add "-enable-kvm -soundhw pcspk" to qemu command line rcutorture: Handle different mpstat versions rcutorture: Check from beginning to end of grace period rcu: Remove redundant rcu_batches_completed() declaration rcutorture: Drop rcu_torture_completed() and friends rcu: Provide rcu_batches_completed_sched() for TINY_RCU rcutorture: Use unsigned for Reader Batch computations rcutorture: Make build-output parsing correctly flag RCU's warnings rcu: Make _batches_completed() functions return unsigned long rcutorture: Issue warnings on close calls due to Reader Batch blows documentation: Fix smp typo in memory-barriers.txt ...
2015-02-09tools/power turbostat: decode MSR_*_PERF_LIMIT_REASONSLen Brown1-0/+126
The Processor generation code-named Haswell added MSR_{CORE | GFX | RING}_PERF_LIMIT_REASONS to explain when and how the processor limits frequency. turbostat -v will now decode these bits. Each MSR has an "Active" set of bits which describe current conditions, and a "Logged" set of bits, which describe what has happened since last cleared. Turbostat currently doesn't clear the log bits. Signed-off-by: Len Brown <len.brown@intel.com>
2015-02-09tools/power turbostat: relax dependency on root permissionLen Brown1-12/+41
For turbostat to run as non-root, it needs to permissions: 1. read access to /dev/cpu/*/msr via standard user/group/world file permissions 2. CAP_SYS_RAWIO eg. # setcap cap_sys_rawio=ep turbostat Yes, running as root still works. Signed-off-by: Len Brown <len.brown@intel.com>
2015-02-06Merge branch 'core-urgent-for-linus' of ↵Linus Torvalds2-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core kernel fixes from Ingo Molnar: "Two liblockdep fixes and a CPU hotplug race fix" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tools/liblockdep: don't include host headers tools/liblockdep: ignore generated .so file smpboot: Add missing get_online_cpus() in smpboot_register_percpu_thread()
2015-02-05ACPICA: Update Copyright headers to 2015David E. Box11-11/+11
ACPICA commit 8990e73ab2aa15d6a0068b860ab54feff25bee36 Link: https://github.com/acpica/acpica/commit/8990e73a Signed-off-by: David E. Box <david.e.box@linux.intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-02-04Merge tag 'usb-for-v3.20' of ↵Greg Kroah-Hartman3-13/+20
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next Felipe writes: usb: patches for v3.20 merge window Here's the big pull request for Gadgets and PHYs. It's a total of 217 non-merge commits with pretty much everything being touched. The most important bits are a ton of new documentation for almost all usb gadget functions, a new isp1760 UDC driver, several improvements to the old net2280 UDC driver, and some minor tracepoint improvements to dwc3. Other than that, a big list of minor cleanups, smaller bugfixes and new features all over the place. Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-02-03ktest: Place quotes around item variableSteven Rostedt (Red Hat)1-1/+1
Seems that some of the new console logic causes doprint to possibly get evaluated. When printing a commit message that contains parenthesis, it fails with a shell parsing error. This gets fixed when we add quotes around the $item variable, and prevent it from being evaluated by any shell commands. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-02-02ktest: Cleanup terminal on dodie() failureJosh Poimboeuf1-1/+6
If dodie() is called with the console open, restore the terminal's original settings before dying. Link: http://lkml.kernel.org/r/20150130025453.GB20952@treble.redhat.com Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-02-02ktest: Print build,install,boot,test times at success and failureSteven Rostedt (Red Hat)1-0/+4
Since both success and failure may shortcut and exit ktest, it is better to print the status times there too. Once times are printed, the values for the times are reset, so they will not print more than once. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-02-02ktest: Enable user input to the consoleJosh Poimboeuf1-15/+36
Allow the user to send input to the console by putting the terminal in cbreak mode (to allow reading stdin one character at a time) and copying all stdin data to the console's pty. Link: http://lkml.kernel.org/r/bb1bbe7d202c95a3ce7894cfffdd8c725875978e.1422473610.git.jpoimboe@redhat.com Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-02-02ktest: Give console process a dedicated ttyJosh Poimboeuf1-9/+57
Create a pseudoterminal (pty pair) to give the console a dedicated tty so it doesn't mess with ktest's terminal settings. Link: http://lkml.kernel.org/r/37b0127f9efad09ff4fc994334db998141e4f6ca.1422473610.git.jpoimboe@redhat.com Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-01-29tools/liblockdep: don't include host headersBaruch Siach1-1/+1
Adding host headers to include path may cause unexpected surprises when cross compiling. Remove /usr/local/include from the default include path. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
2015-01-29tools/liblockdep: ignore generated .so fileBaruch Siach1-0/+1
Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
2015-01-30cpupower Makefile change to help run the tool without 'make install'sriram@marirs.net.in1-1/+1
The cpupower tool, when compiled against libcpupower.so fail's to run as the linker file path's are missing during compilation. So added changes in the Makefile to run cpupower tool, which helps us run the tool without doing a 'make install'. Signed-off-by: Sriram Raghunathan <sriram@marirs.net.in> Acked-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-01-29perf symbols: Convert lseek + read to preadNamhyung Kim1-5/+1
When dso_cache__read() is called, it reads data from the given offset using lseek + normal read syscall. It can be combined to a single pread syscall. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1422518843-25818-40-git-send-email-namhyung@kernel.org [ Fixed it up when cherry picking it from the multi threaded patchkit ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-29perf tools: Use perf_data_file__fd() consistentlyNamhyung Kim2-9/+10
Do not reference file->fd directly since we want hide the implementation details from outside for possible future changes. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1422518843-25818-8-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-29perf symbols: Support to read compressed module from build-id cacheNamhyung Kim1-5/+8
The commit c00c48fc6e6e ("perf symbols: Preparation for compressed kernel module support") added support for compressed kernel modules but it only supports system path DSOs. When a dso is read from build-id cache, its filename doesn't end with ".gz" but has build-id. In this case, we should fallback to the original dso->name. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1422518843-25818-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-29perf evsel: Set attr.task bit for a tracking eventNamhyung Kim1-0/+1
The perf_event_attr.task bit is to track task (fork and exit) events but it missed to be set by perf_evsel__config(). While it was not a problem in practice since setting other bits (comm/mmap) ended up being in same result, it'd be good to set it explicitly anyway. The attr->task is to track task related events (fork/exit) only but other meta events like comm and mmap[2] also needs the task events. So setting attr->comm and/or attr->mmap causes the kernel emits the task events anyway. So the attr->task is only meaningful when other bits are off but I'd like to set it for completeness. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1422518843-25818-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-29perf header: Set header version correctlyNamhyung Kim1-1/+1
When check_magic_endian() is called, it checks the magic number in the perf data file to determine version and endianness. But if it uses a same endian the verison number wasn't updated and makes confusion. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1422518843-25818-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-29perf record: Show precise number of samplesNamhyung Kim1-12/+39
After perf record finishes, it prints file size and number of samples in the file but this info is wrong since it assumes typical sample size of 24 bytes and divides file size by the value. However as we post-process recorded samples for build-id, it can show correct number like below. If build-id post-processing is not requested just omit the wrong number of samples. $ perf record noploop 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.159 MB perf.data (3989 samples) ] $ perf report --stdio -n # To display the perf.data header info, please use --header/--header-only options. # # Samples: 3K of event 'cycles' # Event count (approx.): 3771330663 # # Overhead Samples Command Shared Object Symbol # ........ ............ ....... ................ .......................... # 99.90% 3982 noploop noploop [.] main 0.09% 1 noploop ld-2.17.so [.] _dl_check_map_versions 0.01% 1 noploop [kernel.vmlinux] [k] setup_arg_pages 0.00% 5 noploop [kernel.vmlinux] [k] intel_pmu_enable_all Reported-by: Milian Wolff <mail@milianw.de> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Reviewed-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1422518843-25818-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-29perf tools: Do not use __perf_session__process_events() directlyNamhyung Kim3-10/+6
It's only used for perf record to process build-id because its file size it's not fixed at this time due to remaining header features. However data offset and size is available so that we can use the perf_session__process_events() once we set the file size as the current offset like for now. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1422518843-25818-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-29perf callchain: Cache eh/debug frame offset for dwarf unwindNamhyung Kim2-11/+21
When libunwind tries to resolve callchains it needs to know the offset of .eh_frame_hdr or .debug_frame to access the dso. Since it will always return the same result for a given DSO, just cache the result as an optimization. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1422518843-25818-41-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-29ktest: Rename start_monitor_and_boot to start_monitor_and_installSteven Rostedt (Red Hat)1-5/+5
The function start_monitor_and_boot is a misnomer. It use to, but now it starts the monitor and installs. It does not boot. Rename it before I get confused by it again. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-01-29ktest: Show times for build, install, boot and testSteven Rostedt (Red Hat)1-4/+105
Seeing the times for how long a build, install, reboot and the test takes is helpful for analyzing the test process. Seeing how different changes affect the timings. Show the build, install, boot and test times when at the end of the test, or between each interval for tests that do those mulitple times (like bisect and patchcheck). Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-01-28perf tools: Provide stub for missing pthread_attr_setaffinity_npVineet Gupta5-0/+42
uClibc Linuxthreads.old doesn't support the pthread_attr_setaffinity_np() functioo: ----------------->8----------------------- CC bench/futex-hash.o CC bench/futex-wake.o bench/futex-hash.c: In function 'bench_futex_hash': bench/futex-hash.c:161:3: error: implicit declaration of function 'pthread_attr_setaffinity_np' [-Werror=implicit-function-declaration] ret = pthread_attr_setaffinity_np(&thread_attr, sizeof(cpu_set_t), &cpu); ^ bench/futex-hash.c:161:3: error: nested extern declaration of 'pthread_attr_setaffinity_np' [-Werror=nested-externs] ----------------->8----------------------- So introduce a test to check that and if not available provide a stub. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1421156604-30603-6-git-send-email-vgupta@synopsys.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-28perf evsel: Don't rely on malloc working for sz 0Vineet Gupta1-0/+3
When running perf on ARC (uClibc based userspace), ran into this issue ------------->8---------------- [ARCLinux]$ ./perf record ls bin etc perf sys debug init perf.data tmp [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.001 MB perf.data (~24 samples) ] [ARCLinux]$ ./perf report incompatible file format (rerun with -v to learn more) ------------->8---------------- The problem happens in the following call stack when zalloc is called with size zero glibc default / uClibc with MALLOC_GLIBC_COMPAT are OK, but not if that config option is not enabled. cmd_report perf_session__new perf_session__open perf_session__read_header read_attr(fd, header, &f_attr) nr_ids = f_attr.ids.size / sizeof(u64); <-- 0 perf_evsel__alloc_id(vsel, 1, nr_ids) zalloc(ncpus * nthreads * sizeof(u64)) <-- 0 header.c: read_attr() (gdb) p *f_attr $17 = { attr = { type = 0, size = 96, config = 0, { sample_period = 4000, sample_freq = 4000 }, ... ids = { offset = 104, size = 0 <------ } } Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Suggested-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1421156604-30603-5-git-send-email-vgupta@synopsys.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-28Merge branch 'perf/hw_breakpoints' into perf/coreIngo Molnar6-15/+100
The new hw_breakpoint bits are now ready for v3.20, merge them into the main branch, to avoid conflicts. Conflicts: tools/perf/Documentation/perf-record.txt Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-27ktest: Restore tty settings after closing consoleJosh Poimboeuf1-0/+7
When ktest runs the console program as a child process, the parent and child share the same tty for stdin and stderr. This is problematic when using a libvirt target. The "virsh console" program makes a lot of changes to the tty settings, making ktest's output hard to read (carriage returns don't work). After ktest exits, the terminal is unusable (CRs broken, stdin isn't echoed). I think the best way to fix this issue would be to create a pseudoterminal (pty pair) so the child process would have a dedicated tty, and then use pipes to connect the two ttys. I'm not sure if that's overkill, but it's far beyond my current Perl abilities. This patch is a much easier way to (partially) fix this issue. It saves the tty settings before opening the console and restores them after closing it. There are still a few places where ktest prints mangled output while the console is open, but the output is much more legible overall, and the terminal works just fine after ktest exits. Link: http://lkml.kernel.org/r/1bb89abc0025cf1d6da657c7ba58bbeb4381a515.1422382008.git.jpoimboe@redhat.com Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-01-27ktest: Add timings for commandsSteven Rostedt (Red Hat)1-0/+13
I find that I usually like to see how long a make or other command takes, and adding a start and end time and reporting how long each command runs (in seconds) is helpful. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-01-26tools lib traceevent: Add support for IP address formatsDavid Ahern1-0/+328
Add helpers for the following kernel formats: %pi4 print an IPv4 address with leading zeros %pI4 print an IPv4 address without leading zeros %pi6 print an IPv6 address without colons %pI6 print an IPv6 address with colons %pI6c print an IPv6 address in compressed form with colons %pISpc print an IP address from a sockaddr Allows these formats to be used in tracepoints. Quite a bit of this is adapted from code in lib/vsprintf.c. v4: - fixed pI6c description in git commit message per Valdis' comment v3: - use of 'c' and 'p' requires 'I' v2: - pass ptr+1 to print_ip_arg per Namhyung's comments - added field length checks to sockaddr function Signed-off-by: David Ahern <dsahern@gmail.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1418955071-36241-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>