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2013-11-27perf timechart: Add option to limit number of tasksStanislav Fomichev
Add -n option to specify min. number of tasks to print. Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1383323151-19810-3-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27perf timechart: Always try to print at least 15 tasksStanislav Fomichev
Always try to print at least 15 tasks no matter how long they run. Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1383323151-19810-2-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27perf record: Default -t option to no inheritanceAdrian Hunter
The change to per-cpu mmaps causes the -p, -t and -u options now to have inheritance enabled by default. Change that back to no inheritance but for the -t option only. Requested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1384768557-23331-5-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27perf tools: Add option macro OPT_BOOLEAN_SETAdrian Hunter
OPT_BOOLEAN_SET records whether a boolean option was set by the user. That information can be used to change the default value for the option after the options have been parsed. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1384768557-23331-4-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27perf tools: Allow '--inherit' as the negation of '--no-inherit'Adrian Hunter
Long options can be negated by prefixing them with 'no-'. However options that already start with 'no-', such as '--no-inherit' result in ugly double 'no's. Avoid that by accepting that the removal of 'no-' also negates the long option. Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1384768557-23331-3-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27perf record: Make per-cpu mmaps the default.Adrian Hunter
This affects the -p, -t and -u options that previously defaulted to per-thread mmaps. Consequently add an option to select per-thread mmaps to support the old behaviour. Note that per-thread can be used with a workload-only (i.e. none of -p, -t, -u, -a or -C is selected) to get a per-thread mmap with no inheritance. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/5286271D.3020808@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27perf script: Move evname print code to process_event()Namhyung Kim
The print_sample_start() will be reused by other printing routine for internal events like COMM, FORK and EXIT from next patch. And because they're not tied to a specific event, move the evname print code to its caller. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Reviewed-by: David Ahern <dsahern@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1384752894-10974-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27perf completion: Rename file to reflect zsh supportRamkumar Ramachandra
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Link: http://lkml.kernel.org/r/1384704807-15779-6-git-send-email-artagnon@gmail.com [ Fix 'make install' target ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27perf completion: Introduce zsh supportRamkumar Ramachandra
__perfcomp(), __perfcomp_colon(), and _perf() have to be overridden. Inspired by the way the git.git completion system is structured. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1384704807-15779-5-git-send-email-artagnon@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27perf completion: Factor out call to __ltrim_colon_completionsRamkumar Ramachandra
In our sole callsite, __ltrim_colon_completions is called after __perfcomp, to modify the COMPREPLY set by the invocation. This is problematic, because in the zsh equivalent (using compset/ compadd), we'll have to generate completions in one-shot. So factor out this entire callsite into a special override'able __perfcomp_colon function; we will override it when introducing zsh support. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Link: http://lkml.kernel.org/r/1384704807-15779-4-git-send-email-artagnon@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27perf completion: Factor out compgen stuffRamkumar Ramachandra
compgen is a bash-builtin; factor out the invocations into a separate function to give us a chance to override it with a zsh equivalent in future patches. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Link: http://lkml.kernel.org/r/1384704807-15779-3-git-send-email-artagnon@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27perf completion: Introduce a layer of indirectionRamkumar Ramachandra
Define the variables cur, words, cword, and prev outside the main completion function so that we have a chance to override it when we introduce zsh support. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Link: http://lkml.kernel.org/r/1384704807-15779-2-git-send-email-artagnon@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27perf top: Make -g refer to callchainsDavid Ahern
In most commands -g is used for callchains. Make perf-top follow suit. Move group to just --group with no short cut making it similar to perf-record. Signed-off-by: David Ahern <dsahern@gmail.com> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1384487490-6865-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27perf trace: Remove thread summary coloringPekka Enberg
Thread summary line coloring looks ugly. It doesn't add much value so remove coloring completely. Signed-off-by: Pekka Enberg <penberg@kernel.org> Acked-by: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1384447410-1771-1-git-send-email-penberg@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27tools lib traceevent: Use helper trace-seq in print functions like kernel doesSteven Rostedt
Jiri Olsa reported that his plugin for scsi was chopping off part of the output. Investigating this, I found that Jiri used the same functions as what is in the kernel, which adds the following: trace_seq_putc(p, 0); This adds a '\0' to the output string. The reason this works in the kernel is that the "p" that is passed to the function helper is a temporary trace_seq. But in the libtraceevent library, it's the pointer to the trace_seq used to output. By adding the '\0', it truncates the line and nothing added after that will be printed. We can solve this in two ways. One is to have the helper functions for the library not add the unnecessary '\0'. The other is to change the library to also use a helper trace_seq structure that gets copied to the main trace_seq just like the kernel does. The latter allows the helper functions in the plugins to be the same as the kernel, which is the better solution. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Reported-by: Jiri Olsa <jolsa@redhat.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20131119182937.401668e3@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-27liblockdep: Add the 'lockdep' user-space utilitySasha Levin
This is a simple wrapper to make using liblockdep on existing applications much easier. After running 'make && make install', it becomes quite simple to test things with liblockdep. For example, to try it on perf: lockdep perf No other integration required. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: torvalds@linux-foundation.org Link: http://lkml.kernel.org/r/1371163284-6346-9-git-send-email-sasha.levin@oracle.com [ Changed it to load ./liblockdep.so, so it can be tested in situ. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-11-27liblockdep: Support using LD_PRELOADSasha Levin
This allows lockdep to be used without being compiled in the original program. Usage is quite simple: LD_PRELOAD=/path/to/liblockdep.so /path/to/my/program And magically, you'll have lockdep checking in your program! Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: torvalds@linux-foundation.org Link: http://lkml.kernel.org/r/1371163284-6346-8-git-send-email-sasha.levin@oracle.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-11-27liblockdep: Add pthread_rwlock_t test suiteSasha Levin
A simple test to make sure we handle rwlocks correctly. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: torvalds@linux-foundation.org Link: http://lkml.kernel.org/r/1371163284-6346-7-git-send-email-sasha.levin@oracle.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-11-27liblockdep: Add public headers for pthread_rwlock_t implementationSasha Levin
Both pthreads and lockdep support dealing with rwlocks, so here's the liblockdep implementation for those. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: torvalds@linux-foundation.org Link: http://lkml.kernel.org/r/1371163284-6346-6-git-send-email-sasha.levin@oracle.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-11-27liblockdep: Add pthread_mutex_t test suiteSasha Levin
This is a rather simple and basic test suite to test common locking issues. Beyond tests, it also shows how to use the library. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: torvalds@linux-foundation.org Link: http://lkml.kernel.org/r/1371163284-6346-5-git-send-email-sasha.levin@oracle.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-11-27liblockdep: Add public headers for pthread_mutex_t implementationSasha Levin
These headers provide the same API as their pthread mutex counterparts. The design here is to allow to easily switch to liblockdep lock validation just by adding a "liblockdep_" to pthread_mutex_*() calls, which means that it's easy to integrate liblockdep into existing codebases. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: torvalds@linux-foundation.org Link: http://lkml.kernel.org/r/1371163284-6346-4-git-send-email-sasha.levin@oracle.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-11-27liblockdep: Wrap kernel/locking/lockdep.c to allow usage from userspaceSasha Levin
kernel/locking/lockdep.c deals with validating locking scenarios for various architectures supported by the kernel. There isn't anything kernel specific going on in lockdep, and when we compare userspace to other architectures that don't have to deal with irqs such as s390, they become all too similar. We wrap kernel/locking/lockdep.c and include/linux/lockdep.h with several headers which allow us to build and use lockdep from userspace. We don't touch the kernel code itself which means that any work done on lockdep in the kernel will automatically benefit userspace lockdep as well! Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: torvalds@linux-foundation.org Link: http://lkml.kernel.org/r/1371163284-6346-3-git-send-email-sasha.levin@oracle.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-11-27tools/perf/stat: Add event unit and scale supportStephane Eranian
This patch adds perf stat support for handling event units and scales as exported by the kernel. The kernel can export PMU events actual unit and scaling factor via sysfs: $ ls -1 /sys/devices/power/events/energy-* /sys/devices/power/events/energy-cores /sys/devices/power/events/energy-cores.scale /sys/devices/power/events/energy-cores.unit /sys/devices/power/events/energy-pkg /sys/devices/power/events/energy-pkg.scale /sys/devices/power/events/energy-pkg.unit $ cat /sys/devices/power/events/energy-cores.scale 2.3283064365386962890625e-10 $ cat cat /sys/devices/power/events/energy-cores.unit Joules This patch modifies the pmu event alias code to check for the presence of the .unit and .scale files to load the corresponding values. They are then used by perf stat transparently: # perf stat -a -e power/energy-pkg/,power/energy-cores/,cycles -I 1000 sleep 1000 # time counts unit events 1.000214717 3.07 Joules power/energy-pkg/ [100.00%] 1.000214717 0.53 Joules power/energy-cores/ 1.000214717 12965028 cycles [100.00%] 2.000749289 3.01 Joules power/energy-pkg/ 2.000749289 0.52 Joules power/energy-cores/ 2.000749289 15817043 cycles When the event does not have an explicit unit exported by the kernel, nothing is printed. In csv output mode, there will be an empty field. Special thanks to Jiri for providing the supporting code in the parser to trigger reading of the scale and unit files. Signed-off-by: Stephane Eranian <eranian@google.com> Reviewed-by: Jiri Olsa <jolsa@redhat.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: zheng.z.yan@intel.com Cc: bp@alien8.de Cc: maria.n.dimakopoulou@gmail.com Cc: acme@redhat.com Link: http://lkml.kernel.org/r/1384275531-10892-3-git-send-email-eranian@google.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-11-25tools: cpupower: fix wrong err msg not supported vs not availableThomas Renninger
idlestates in sysfs are counted from 0. This fixes a wrong error message. Current behavior on a machine with 4 sleep states is: cpupower idle-set -e 4 Idlestate 4 enabled on CPU 0 -----Wrong--------------------- cpupower idle-set -e 5 Idlestate enabling not supported by kernel -----Must and now will be ----- cpupower idle-set -e 5 Idlestate 6 not available on CPU 0 ------------------------------- cpupower idle-set -e 6 Idlestate 6 not available on CPU 0 Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-11-25tools: cpupower: Add cpupower-idle-set(1) manpageThomas Renninger
The cpupower idle-set subcommand was introduce recently. This patch provides the missing manpage. If cpupower is properly installed it will show up automatically (similar to git), when invoking: cpupower help idle-set or cpupower idle-set --help Some parts have been taken over and adjusted from git commit 62d6ae880e3e76098 documentation submitted by Carsten Emde. Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-11-20Merge tag 'pm+acpi-2-3.13-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI and power management updates from Rafael Wysocki: - ACPI-based device hotplug fixes for issues introduced recently and a fix for an older error code path bug in the ACPI PCI host bridge driver - Fix for recently broken OMAP cpufreq build from Viresh Kumar - Fix for a recent hibernation regression related to s2disk - Fix for a locking-related regression in the ACPI EC driver from Puneet Kumar - System suspend error code path fix related to runtime PM and runtime PM documentation update from Ulf Hansson - cpufreq's conservative governor fix from Xiaoguang Chen - New processor IDs for intel_idle and turbostat and removal of an obsolete Kconfig option from Len Brown - New device IDs for the ACPI LPSS (Low-Power Subsystem) driver and ACPI-based PCI hotplug (ACPIPHP) cleanup from Mika Westerberg - Removal of several ACPI video DMI blacklist entries that are not necessary any more from Aaron Lu - Rework of the ACPI companion representation in struct device and code cleanup related to that change from Rafael J Wysocki, Lan Tianyu and Jarkko Nikula - Fixes for assigning names to ACPI-enumerated I2C and SPI devices from Jarkko Nikula * tag 'pm+acpi-2-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits) PCI / hotplug / ACPI: Drop unused acpiphp_debug declaration ACPI / scan: Set flags.match_driver in acpi_bus_scan_fixed() ACPI / PCI root: Clear driver_data before failing enumeration ACPI / hotplug: Fix PCI host bridge hot removal ACPI / hotplug: Fix acpi_bus_get_device() return value check cpufreq: governor: Remove fossil comment in the cpufreq_governor_dbs() ACPI / video: clean up DMI table for initial black screen problem ACPI / EC: Ensure lock is acquired before accessing ec struct members PM / Hibernate: Do not crash kernel in free_basic_memory_bitmaps() ACPI / AC: Remove struct acpi_device pointer from struct acpi_ac spi: Use stable dev_name for ACPI enumerated SPI slaves i2c: Use stable dev_name for ACPI enumerated I2C slaves ACPI: Provide acpi_dev_name accessor for struct acpi_device device name ACPI / bind: Use (put|get)_device() on ACPI device objects too ACPI: Eliminate the DEVICE_ACPI_HANDLE() macro ACPI / driver core: Store an ACPI device pointer in struct acpi_dev_node cpufreq: OMAP: Fix compilation error 'r & ret undeclared' PM / Runtime: Fix error path for prepare PM / Runtime: Update documentation around probe|remove|suspend cpufreq: conservative: set requested_freq to policy max when it is over policy max ...
2013-11-19tools lib traceevent: Fix conversion of pointer to integer of different sizeArnaldo Carvalho de Melo
gcc complaint on 32-bit system: /home/acme/git/linux/tools/lib/traceevent/event-parse.c: In function ‘eval_num_arg’: /home/acme/git/linux/tools/lib/traceevent/event-parse.c:3468:9: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] This is because the eval_num_arg returns everything as an 'unsigned long long', so it converts a void pointer to a wider integer, fix it by converting the void pointer to an integer of the same size, 'unsigned long', before casting it to 'unsigned long long'. Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-yllx4aqcg06v5n4vjpwiiuld@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-19tools lib traceevent: Fix use of multiple options in processing fieldSteven Rostedt
Jiri Olsa reported that the scsi_dispatch_cmd_done event failed to parse with: Error: expected type 5 but read 4 Error: expected type 5 but read 4 The problem is with this part of the print_fmt: __print_symbolic(((REC->result) >> 24) & 0xff, ... The __print_symbolic() helper function's first parameter is the field to use to determine what symbol to print based on the value of the result. The parser can handle one operation, but it can not handle multiple operations ('>>' and '&'). Add code to process all operations for the field argument for __print_symbolic() as well as __print_flags(). Reported-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20131118142314.27ca334b@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-19perf header: Fix possible memory leaks in process_group_desc()Namhyung Kim
After processing all group descriptors or encountering an error, it frees all descriptors. However, current logic can leak memory since it might not traverse all descriptors. Note that the 'i' can have different value than nr_groups when an error occurred and it's safe to call free(desc[i].name) for every desc since we already make it NULL when it's reused for group names. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1384741244-7271-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-19perf header: Fix bogus group nameNamhyung Kim
When processing event group descriptor in perf file header, we reuse an allocated group name but forgot to prevent it from freeing. Reported-by: Stephane Eranian <eranian@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1384741244-7271-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-19perf tools: Tag thread comm as overridenFrederic Weisbecker
The problem is that when a thread overrides its default ":%pid" comm, we forget to tag the thread comm as overriden. Hence, this overriden comm is not inherited on future forks. Fix it. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Tested-by: David Ahern <dsahern@gmail.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20131116010207.GA18855@localhost.localdomain Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-19Merge branch 'pm-tools'Rafael J. Wysocki
* pm-tools: tools / power turbostat: Support Silvermont
2013-11-16Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Tooling changes only: it includes the ARM tooling fixlets, various other fixes, smaller updates, minor cleanups" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf record: Add an option to force per-cpu mmaps perf probe: Add '--demangle'/'--no-demangle' perf ui browser: Fix segfault caused by off by one handling END key perf symbols: Limit max callchain using max_stack on DWARF unwinding too perf evsel: Introduce perf_evsel__prev() method perf tools: Use perf_evlist__{first,last}, perf_evsel__next perf tools: Synthesize anon MMAP records again perf top: Add missing newline if the 'uid' is invalid perf tools: Remove trivial extra semincolon perf trace: Tweak summary output tools/perf/build: Fix feature-libunwind-debug-frame handling tools/perf/build: Fix timerfd feature check
2013-11-15Merge tag 'virtio-next-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull virtio updates from Rusty Russell: "Nothing really exciting: some groundwork for changing virtio endian, and some robustness fixes for broken virtio devices, plus minor tweaks" * tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: virtio_scsi: verify if queue is broken after virtqueue_get_buf() x86, asmlinkage, lguest: Pass in globals into assembler statement virtio: mmio: fix signature checking for BE guests virtio_ring: adapt to notify() returning bool virtio_net: verify if queue is broken after virtqueue_get_buf() virtio_console: verify if queue is broken after virtqueue_get_buf() virtio_blk: verify if queue is broken after virtqueue_get_buf() virtio_ring: add new function virtqueue_is_broken() virtio_test: verify if virtqueue_kick() succeeded virtio_net: verify if virtqueue_kick() succeeded virtio_ring: let virtqueue_{kick()/notify()} return a bool virtio_ring: change host notification API virtio_config: remove virtio_config_val virtio: use size-based config accessors. virtio_config: introduce size-based accessors. virtio_ring: plug kmemleak false positive. virtio: pm: use CONFIG_PM_SLEEP instead of CONFIG_PM
2013-11-14perf record: Add an option to force per-cpu mmapsAdrian Hunter
By default, when tasks are specified (i.e. -p, -t or -u options) per-thread mmaps are created. Add an option to override that and force per-cpu mmaps. Further comments by peterz: So this option allows -t/-p/-u to create one buffer per cpu and attach all the various thread/process/user tasks' their counters to that one buffer? As opposed to the current state where each such counter would have its own buffer. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1383313899-15987-7-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-14perf probe: Add '--demangle'/'--no-demangle'Azat Khuzhin
You can't pass demangled name into "perf probe", because of special chars: ./perf probe -f -x /tmp/a.out 'foo(int)' Semantic error :There is non-digit char in line number. And you can't even pass without demangling (because it search symbol in DSO with demangle=true): ./perf probe -f -x /tmp/a.out _Z3fooi no symbols found in /tmp/a.out, maybe install a debug package? However: nm /tmp/a.out | grep foo 000000000040056d T _Z3fooi After this patch, using the next command: ./perf probe -f --no-demangle -x /tmp/a.out _Z3fooi probe will be successfully added. Signed-off-by: Azat Khuzhin <a3at.mail@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1382947464-31266-1-git-send-email-a3at.mail@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-14perf ui browser: Fix segfault caused by off by one handling END keyArnaldo Carvalho de Melo
$ perf record ls $ perf report Press 'down enter end' Result: Program received signal SIGSEGV, Segmentation fault. The UI browser, used on a argv array would access past the end of the array on SEEK_END because it wasn't using 'nr_entries - 1', fix it. Reported-by: v.karpov@samsung.com Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=59291 Link: http://lkml.kernel.org/n/tip-3g83ipasqi219ktv764xzzjs@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-14perf symbols: Limit max callchain using max_stack on DWARF unwinding tooArnaldo Carvalho de Melo
It was affecting only frame-pointer (fp) based callchain processing. Usage example: perf top --call-graph dwarf,1024 --max-stack 2 Works for any tool that does callchain resolving and provides a --max-stack option. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Waiman Long <Waiman.Long@hp.com> Link: http://lkml.kernel.org/n/tip-eu45v8s3tq9ruay8tpfyon79@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-14perf evsel: Introduce perf_evsel__prev() methodArnaldo Carvalho de Melo
Just one use so far, on the hists browser, for completeness since there we use perf_evlist__{first,last} and perf_evsel__next() for handling the TAB and UNTAB keys. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-d09l4lejp5427enuf3igpckw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-14perf tools: Use perf_evlist__{first,last}, perf_evsel__nextArnaldo Carvalho de Melo
In a few remaining places where the equivalent open coded variant was still being used. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-4vjnloi5fisilykwxalb5nel@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-14perf tools: Synthesize anon MMAP records againDon Zickus
When introducing the PERF_RECORD_MMAP2 in: 5c5e854bc760 perf tools: Add attr->mmap2 support A check for the number of entries parsed by sscanf was introduced that assumed all of the 8 fields needed to be correctly parsed so that particular /proc/pid/maps line would be considered synthesizable. That broke anon records synthesizing, as it doesn't have the 'execname' field. Fix it by keeping the sscanf return check, changing it to not require that the 'execname' variable be parsed, so that the preexisting logic can kick in and set it to '//anon'. This should get things like JIT profiling working again. Signed-off-by: Don Zickus <dzickus@redhat.com> Cc: Bill Gray <bgray@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Joe Mario <jmario@redhat.com> Cc: Richard Fowles <rfowles@redhat.com> Cc: Stephane Eranian <eranian@google.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/n/tip-bo4akalno7579shpz29u867j@git.kernel.org [ commit log message is mine, dzickus reported the problem with a patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-14perf top: Add missing newline if the 'uid' is invalidIngo Molnar
Add missing newline if the 'uid' is invalid: hubble:~> perf top --stdio -u help Error: Invalid User: helphubble:~> Fixed by this patch: comet:~/tip/tools/perf> perf top --stdio -u help Error: Invalid User: help comet:~/tip/tools/perf> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20131112232609.GA31474@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-14perf tools: Remove trivial extra semincolonDavidlohr Bueso
Accidentally ran into these, get rid of them. Signed-off-by: Davidlohr Bueso <davidlohr@hp.com> Link: http://lkml.kernel.org/r/1384323864.2527.8.camel@buesod1.americas.hpqcorp.net Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-14perf trace: Tweak summary outputPekka Enberg
Tweak the summary output as suggested by Ingo Molnar: [penberg@localhost ~]$ perf trace -a --duration 10000 --summary -- sleep 1 ^C Summary of events: Xorg (817), 148 events, 0.0%, 0.000 msec syscall calls min avg max stddev (msec) (msec) (msec) (%) --------------- -------- --------- --------- --------- ------ read 7 0.002 0.004 0.011 32.00% rt_sigprocmask 40 0.001 0.001 0.002 1.31% ioctl 6 0.002 0.003 0.005 19.45% writev 7 0.004 0.018 0.059 43.76% select 9 0.000 74.513 507.869 74.61% setitimer 4 0.001 0.002 0.002 10.08% Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Pekka Enberg <penberg@kernel.org> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Link: http://lkml.kernel.org/r/1384345308-24404-1-git-send-email-penberg@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-11-14tools/perf/build: Fix feature-libunwind-debug-frame handlingIngo Molnar
Set feature-libunwind-debug-frame. We don't want it in CORE_FEATURE_TESTS because it's not the generic case, but we need to set it in the !feature-libunwind case. Also, because x86 distributions typically don't have dwarf_find_debug_frame() unwinding method: test-libunwind-debug-frame.c:(.text+0x31): undefined reference to `_Ux86_64_dwarf_find_debug_frame' Restrict this new API to ARM for the time being. With this patch test-all.c works again, so repeat perf builds are fast again: comet:~/tip> perf stat --null --repeat 5 make -C tools/perf/ [...] 0,452899660 seconds time elapsed ( +- 0,11% ) While with before it was: comet:~/tip> perf stat --null --repeat 5 make -C tools/perf/ [...] 1,674001829 seconds time elapsed ( +- 0,16% ) [ Includes fix to config/feature-checks/Makefile from Will Deacon. ] Tested-by: Will Deacon <will.deacon@arm.com> Tested-by: Jean Pihet <jean.pihet@linaro.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/n/tip-scsoctqzmou3rpkixCHezy9e@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-11-14tools/perf/build: Fix timerfd feature checkIngo Molnar
'feature_timerfd' is checked all the time and calculated explicitly, in a serial fashion. Add it to CORE_FEATURE_TESTS which causes it to be built in parallel, using the newfangled parallel build autodetection code. This shaves 137 msecs off the perf build time on my system, which speeds up the common case cached build by 43%: Before: comet:~/tip> perf stat --null --repeat 5 make -C tools/perf/ [...] 0,453771441 seconds time elapsed ( +- 0,09% ) After: comet:~/tip> perf stat --null --repeat 5 make -C tools/perf/ [...] 0,316290185 seconds time elapsed ( +- 0,24% ) Cc: David Ahern <dsahern@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/n/tip-bb92CmexihopoSyqnkqepvsy@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-11-14Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "A number of fixes: - Fix segfault on perf trace -i perf.data, from Namhyung Kim. - Fix segfault with --no-mmap-pages, from David Ahern. - Don't force a refresh during progress update in the TUI, greatly reducing startup costs, fix from Patrick Palka. - Fix sw clock event period test wrt not checking if using > max_sample_freq. - Handle throttle events in 'object code reading' test, fix from Adrian Hunter. - Prevent condition that all sort keys are elided, fix from Namhyung Kim. - Round mmap pages to power 2, from David Ahern. And a number of late arrival changes: - Add summary only option to 'perf trace', suppressing the decoding of events, from David Ahern - 'perf trace --summary' formatting simplifications, from Pekka Enberg. - Beautify fifth argument of mmap() as fd, in 'perf trace', from Namhyung Kim. - Add direct access to dynamic arrays in libtraceevent, from Steven Rostedt. - Synthesize non-exec MMAP records when --data used, allowing the resolution of data addresses to symbols (global variables, etc), by Arnaldo Carvalho de Melo. - Code cleanups by David Ahern and Adrian Hunter" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits) tools lib traceevent: Add direct access to dynamic arrays perf target: Shorten perf_target__ to target__ perf tests: Handle throttle events in 'object code reading' test perf evlist: Refactor mmap_pages parsing perf evlist: Round mmap pages to power 2 - v2 perf record: Fix segfault with --no-mmap-pages perf trace: Add summary only option perf trace: Simplify '--summary' output perf trace: Change syscall summary duration order perf tests: Compensate lower sample freq with longer test loop perf trace: Fix segfault on perf trace -i perf.data perf trace: Separate tp syscall field caching into init routine to be reused perf trace: Beautify fifth argument of mmap() as fd perf tests: Use lower sample_freq in sw clock event period test perf tests: Check return of perf_evlist__open sw clock event period test perf record: Move existing write_output into helper function perf record: Use correct return type for write() perf tools: Prevent condition that all sort keys are elided perf machine: Simplify synthesize_threads method perf machine: Introduce synthesize_threads method out of open coded equivalent ...
2013-11-14Merge branch 'linus' into perf/urgentIngo Molnar
Merge dependencies to apply a fix. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-11-14Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management updates from Zhang Rui: "This time we only have a few changes as there are no soc thermal changes from Eduardo. The only big change is the introduction of TMON, a tool to help visualize, tune, and test the thermal subsystem. The rest is mostly cleanups and fixes all over. Specifics: - introduce TMON, a tool base on thermal sysfs I/F. It can be used to visualize, tune and test the thermal subsystem. - fix a zone/cooling device binding problem, when both thermal zone bind parameters and .bind() callback are available" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: tools/thermal: Introduce tmon, a tool for thermal subsystem thermal: Fix binding problem when there is thermal zone params thermal: cpu_cooling: fix return value check in cpufreq_cooling_register() Thermal: Check for validity before doing kfree thermal/intel_powerclamp: Add newer CPU models Thermal: Tidy up error handling in powerclamp_init thermal: Kconfig: cosmetic fixes ACPI/thermal : Remove zone disabled warning typo in drivers/thermal/Kconfig: lpatform instead of platform
2013-11-14Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull ARM updates from Russell King: "Included in this series are: 1. BE8 (modern big endian) changes for ARM from Ben Dooks 2. big.Little support from Nicolas Pitre and Dave Martin 3. support for LPAE systems with all system memory above 4GB 4. Perf updates from Will Deacon 5. Additional prefetching and other performance improvements from Will. 6. Neon-optimised AES implementation fro Ard. 7. A number of smaller fixes scattered around the place. There is a rather horrid merge conflict in tools/perf - I was never notified of the conflict because it originally occurred between Will's tree and other stuff. Consequently I have a resolution which Will forwarded me, which I'll forward on immediately after sending this mail. The other notable thing is I'm expecting some build breakage in the crypto stuff on ARM only with Ard's AES patches. These were merged into a stable git branch which others had already pulled, so there's little I can do about this. The problem is caused because these patches have a dependency on some code in the crypto git tree - I tried requesting a branch I can pull to resolve these, and all I got each time from the crypto people was "we'll revert our patches then" which would only make things worse since I still don't have the dependent patches. I've no idea what's going on there or how to resolve that, and since I can't split these patches from the rest of this pull request, I'm rather stuck with pushing this as-is or reverting Ard's patches. Since it should "come out in the wash" I've left them in - the only build problems they seem to cause at the moment are with randconfigs, and since it's a new feature anyway. However, if by -rc1 the dependencies aren't in, I think it'd be best to revert Ard's patches" I resolved the perf conflict roughly as per the patch sent by Russell, but there may be some differences. Any errors are likely mine. Let's see how the crypto issues work out.. * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (110 commits) ARM: 7868/1: arm/arm64: remove atomic_clear_mask() in "include/asm/atomic.h" ARM: 7867/1: include: asm: use 'int' instead of 'unsigned long' for 'oldval' in atomic_cmpxchg(). ARM: 7866/1: include: asm: use 'long long' instead of 'u64' within atomic.h ARM: 7871/1: amba: Extend number of IRQS ARM: 7887/1: Don't smp_cross_call() on UP devices in arch_irq_work_raise() ARM: 7872/1: Support arch_irq_work_raise() via self IPIs ARM: 7880/1: Clear the IT state independent of the Thumb-2 mode ARM: 7878/1: nommu: Implement dummy early_paging_init() ARM: 7876/1: clear Thumb-2 IT state on exception handling ARM: 7874/2: bL_switcher: Remove cpu_hotplug_driver_{lock,unlock}() ARM: footbridge: fix build warnings for netwinder ARM: 7873/1: vfp: clear vfp_current_hw_state for dying cpu ARM: fix misplaced arch_virt_to_idmap() ARM: 7848/1: mcpm: Implement cpu_kill() to synchronise on powerdown ARM: 7847/1: mcpm: Factor out logical-to-physical CPU translation ARM: 7869/1: remove unused XSCALE_PMU Kconfig param ARM: 7864/1: Handle 64-bit memory in case of 32-bit phys_addr_t ARM: 7863/1: Let arm_add_memory() always use 64-bit arguments ARM: 7862/1: pcpu: replace __get_cpu_var_uses ARM: 7861/1: cacheflush: consolidate single-CPU ARMv7 cache disabling code ...
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