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* Input: xpad - add USB ID for the drumkit controller from Rock BandCorbin Simpson2009-08-201-0/+2
| | | | | Signed-off-by: Corbin Simpson <MostAwesomeDude@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: w90p910_keypad - rename driver name to match platformWan ZongShun2009-08-201-3/+3
| | | | | Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: add new driver for Sentelic Finger Sensing PadTai-hwa Liang2009-08-199-4/+1488
| | | | | | | | This is the driver for Sentelic Finger Sensing Pad which can be found on MSI WIND Netbook. Signed-off-by: Tai-hwa Liang <avatar@sentelic.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: psmouse - allow defining read-only attributesDmitry Torokhov2009-08-191-5/+16
| | | | Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: eeti_ts - allow active high irq linesDaniel Mack2009-08-122-3/+28
| | | | | | | | | | | This adds a struct eeti_ts_platform_data which currently holds only one value to specify the interrupt polarity. The driver has a fallback if no platform data is passed in via the i2c_board_info, so no regression is caused. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: w90p910_keypad - adjust to use definitions from matrix_keypad.hDmitry Torokhov2009-08-092-83/+66
| | | | | | | | Also have the driver send MSC_SCAN events as most keyboards do to aid in updating keymap from userspace. Tested-by: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: add keypad driver for w90p910Wan ZongShun2009-08-094-0/+334
| | | | | | | | | Add keypad driver for the 4x4 keypad on an evaluation board based on w90p910. Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Reviewed-by: Trilok Soni <soni.trilok@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: combine hil_kbd and hil_ptr driversDmitry Torokhov2009-08-095-493/+219
| | | | | | | | | hil_kbd and hil_ptr look like twins so it makes sense to combine them into a single driver. [deller@gmx.de: add MODULE_ALIAS() entry for mouse] Tested-by: Helge Deller <deller@gmx.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: hil_kbd - prepare for merging with hil_ptrDmitry Torokhov2009-08-091-78/+78
| | | | | | | | Rename functions and variables from [hil_]kbd to [hil_]dev in preparation of merging hil_kbd and hil_ptr. Tested-by: Helge Deller <deller@gmx.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: hil_kbd - switch to use completion instead of semaphoreDmitry Torokhov2009-08-091-132/+140
| | | | | | | | Stop abusing semaphore for waiting, use completion instead. Also handle errors from input_register_device. Tested-by: Helge Deller <deller@gmx.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: wistron_btns - switch to using dev_pm_opsDmitry Torokhov2009-08-081-29/+37
| | | | | | | Also start using 'bool' where it makes sense. Tested-by: Giuseppe Mazzotta <g.mazzotta@iragan.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: serio - don't use serio->write() directlyDmitry Torokhov2009-08-056-86/+91
| | | | | | We have a nice wrapper for that. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: hgpk - forced recalibration for the OLPC touchpadPaul Fox2009-08-051-3/+52
| | | | | | | | | | | | | | | | | | | The OLPC XO laptop incorporates a combination touchpad/tablet device which unfortunately requires frequent recalibration. The driver will force this automatically when various suspicious behaviors are observed, and the user can recalibrate manually (with a special keyboard sequence). There's currently no way, however, for an external program to cause recalibration. We can not use the reconnect capability which is already available in /sys because full reset of the touchpad takes 1.1 - 1.2 secons which is too long. This patch creates a new node in /sys which, when written with '1', will force a touchpad recalibration; no other writes (or reads) of this node are supported. Signed-off-by: Paul Fox <pgf@laptop.org> Acked-by: Andres Salomon <dilinger@collabora.co.uk> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: tsc2007 - check if I2C communication works during probeRichard Röjfors2009-08-041-3/+5
| | | | | | | Check the result when sending the power down command to the controller. Signed-off-by: Richard Röjfors <richard.rojfors.ext@mocean-labs.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: tsc2007 - make get_pendown_state platform callback optionalDmitry Torokhov2009-08-041-79/+93
| | | | | | | | In cases when get_pendown_state callback is not available have the driver to fallback on pressure calculation to determine if the pen is up. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: usbtouchscreen - add support for e2i touchscreen controllerFlorian Echtler2009-07-272-0/+54
| | | | | | | | | This patch adds support for the e2i touchscreen controller used in the Mimo 740 (and probably in other e2i touchscreen products). Tested on Mimo 740. Signed-off-by: Florian Echtler <floe@butterbrot.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: tsc2007 - do not read coordinates during probeRichard Röjfors2009-07-261-2/+3
| | | | | | | | Don't read coordinates during probe of the driver, just power down the controller and wait for interrupts. Signed-off-by: Richard Röjfors<richard.rojfors.ext@mocean-labs.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: tsc2007 - make init/exit platform hw callbacks optionalRichard Röjfors2009-07-261-3/+6
| | | | | | | | Make init_platform_hw and exit_platform_hw callbacks optional since they are not needed on all platforms. Signed-off-by: Richard Röjfors <richard.rojfors.ext@mocean-labs.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: tsc2007 - properly shut off interrupts/delayed workDmitry Torokhov2009-07-261-30/+42
| | | | | | | | | | | Properly shut off interrupts/delayed work by free-ing IRQ first and then ensuring that enable/disable is balanced. Also add __devinit/__devexit markings, restore poll delay/period scheduling logic, make sure we call exit_platform_hw() method when probe fails. Tested-by: Richard Röjfors <richard.rojfors.ext@mocean-labs.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: tsc2007 - remove HR timerRichard Röjfors2009-07-261-35/+13
| | | | | | | | | Since it's not allowed to do synchronous I2C in the HR timer callback context we have to switch to using the global workqueue. The work is scheduled every 1ms when polling rather than 5 us. Signed-off-by: Richard Röjfors <richard.rojfors.ext@mocean-labs.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: pxa27x_keypad - switch to using dev_pm_opsDmitry Torokhov2009-07-261-7/+12
| | | | Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: serio - switch to using dev_pm_opsDmitry Torokhov2009-07-262-14/+11
| | | | Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: i8042 - switch to using dev_pm_opsDmitry Torokhov2009-07-261-26/+18
| | | | Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: gpio_keys - swtich to dev_pm_opsMike Rapoport2009-07-241-7/+12
| | | | | Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Driver Core: Make PM operations a const pointerDmitry Torokhov2009-07-244-16/+19
| | | | | | | | They are not supposed to be modified by drivers, so make them const. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
* Input: bf54x-keys - convert printk() to dev_*()Mike Frysinger2009-07-231-17/+9
| | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: add Blackfin rotary input driverMichael Hennerich2009-07-234-0/+333
| | | | | | | | | This driver handles the Blackfin on-chip rotary peripheral. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: pxa27x_keypad - remove extra clk_disableDmitry Torokhov2009-07-222-25/+21
| | | | | | | | | | | | clk_disable() in remove method is not needed since we already have clk_disable in pxa27x_keypad_close(). Also make sure the driver uses resource_size() and helpers from include/input/matrix_keypad.h Tested-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Merge commit 'v2.6.31-rc4' into nextDmitry Torokhov2009-07-228427-477165/+868105
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| * Linux 2.6.31-rc4v2.6.31-rc4Linus Torvalds2009-07-221-1/+1
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| * Merge branch 'irq-fixes-for-linus' of ↵Linus Torvalds2009-07-221-0/+5
| |\ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: genirq: Fix UP compile failure caused by irq_thread_check_affinity
| | * genirq: Fix UP compile failure caused by irq_thread_check_affinityBruno Premont2009-07-221-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since genirq: Delegate irq affinity setting to the irq thread (591d2fb02ea80472d846c0b8507007806bdd69cc) compilation with CONFIG_SMP=n fails with following error: /usr/src/linux-2.6/kernel/irq/manage.c: In function 'irq_thread_check_affinity': /usr/src/linux-2.6/kernel/irq/manage.c:475: error: 'struct irq_desc' has no member named 'affinity' make[4]: *** [kernel/irq/manage.o] Error 1 That commit adds a new function irq_thread_check_affinity() which uses struct irq_desc.affinity which is only available for CONFIG_SMP=y. Move that function under #ifdef CONFIG_SMP. [ tglx@brownpaperbag: compile and boot tested on UP and SMP ] Signed-off-by: Bruno Premont <bonbons@linux-vserver.org> LKML-Reference: <20090722222232.2eb3e1c4@neptune.home> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | Merge branch 'lockdep-for-linus' of ↵Linus Torvalds2009-07-221-2/+2
| |\ \ | | |/ | |/| | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep * 'lockdep-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep: lockdep: Fix lockdep annotation for pipe_double_lock()
| | * lockdep: Fix lockdep annotation for pipe_double_lock()Peter Zijlstra2009-07-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The presumed use of the pipe_double_lock() routine is to lock 2 locks in a deadlock free way by ordering the locks by their address. However it fails to keep the specified lock classes in order and explicitly annotates a deadlock. Rectify this. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Miklos Szeredi <mszeredi@suse.cz> LKML-Reference: <1248163763.15751.11098.camel@twins>
| * | Merge branch 'perf-counters-for-linus' of ↵Linus Torvalds2009-07-2225-299/+948
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-perf * 'perf-counters-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-perf: (31 commits) perf_counter tools: Give perf top inherit option perf_counter tools: Fix vmlinux symbol generation breakage perf_counter: Detect debugfs location perf_counter: Add tracepoint support to perf list, perf stat perf symbol: C++ demangling perf: avoid structure size confusion by using a fixed size perf_counter: Fix throttle/unthrottle event logging perf_counter: Improve perf stat and perf record option parsing perf_counter: PERF_SAMPLE_ID and inherited counters perf_counter: Plug more stack leaks perf: Fix stack data leak perf_counter: Remove unused variables perf_counter: Make call graph option consistent perf_counter: Add perf record option to log addresses perf_counter: Log vfork as a fork event perf_counter: Synthesize VDSO mmap event perf_counter: Make sure we dont leak kernel memory to userspace perf_counter tools: Fix index boundary check perf_counter: Fix the tracepoint channel to perfcounters perf_counter, x86: Extend perf_counter Pentium M support ...
| | * | perf_counter tools: Give perf top inherit optionMike Galbraith2009-07-221-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, perf top -p only tracks the pid provided, which isn't very useful for watching forky loads, so give it an inherit option. Signed-off-by: Mike Galbraith <efault@gmx.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1248165036.9795.10.camel@marge.simson.net>
| | * | perf_counter tools: Fix vmlinux symbol generation breakageMike Galbraith2009-07-221-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | vmlinux meets the criteria for symbol adjustment, which breaks vmlinux generated symbols. Fix this by exempting vmlinux. This is a bit fragile in that someone could change the kernel dso's name, but currently that name is also hardwired. Signed-off-by: Mike Galbraith <efault@gmx.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1248091298.18702.18.camel@marge.simson.net>
| | * | perf_counter: Detect debugfs locationJason Baron2009-07-225-17/+102
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If "/sys/kernel/debug" is not a debugfs mount point, search for the debugfs filesystem in /proc/mounts, but also allows the user to specify '--debugfs-dir=blah' or set the environment variable: 'PERF_DEBUGFS_DIR' Signed-off-by: Jason Baron <jbaron@redhat.com> [ also made it probe "/debug" by default ] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20090721181629.GA3094@redhat.com>
| | * | perf_counter: Add tracepoint support to perf list, perf statJason Baron2009-07-222-1/+176
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support to 'perf list' and 'perf stat' for kernel tracepoints. The implementation creates a 'for_each_subsystem' and 'for_each_event' for easy iteration over the tracepoints. Signed-off-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <426129bf9fcc8ee63bb094cf736e7316a7dcd77a.1248190728.git.jbaron@redhat.com>
| | * | perf symbol: C++ demanglingArnaldo Carvalho de Melo2009-07-222-3/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [acme@doppio ~]$ perf report -s comm,dso,symbol -C firefox -d /usr/lib64/xulrunner-1.9.1/libxul.so | grep :: | head 2.21% [.] nsDeque::Push(void*) 1.78% [.] GraphWalker::DoWalk(nsDeque&) 1.30% [.] GCGraphBuilder::AddNode(void*, nsCycleCollectionParticipant*) 1.27% [.] XPCWrappedNative::CallMethod(XPCCallContext&, XPCWrappedNative::CallMode) 1.18% [.] imgContainer::DrawFrameTo(gfxIImageFrame*, gfxIImageFrame*, nsRect&) 1.13% [.] nsDeque::PopFront() 1.11% [.] nsGlobalWindow::RunTimeout(nsTimeout*) 0.97% [.] nsXPConnect::Traverse(void*, nsCycleCollectionTraversalCallback&) 0.95% [.] nsJSEventListener::cycleCollection::Traverse(void*, nsCycleCollectionTraversalCallback&) 0.95% [.] nsCOMPtr_base::~nsCOMPtr_base() [acme@doppio ~]$ Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Vegard Nossum <vegard.nossum@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Suggested-by: Clark Williams <williams@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20090720171412.GB10410@ghostprotocols.net>
| | * | perf: avoid structure size confusion by using a fixed sizeArjan van de Ven2009-07-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | for some reason, this structure gets compiled as 36 bytes in some files (the ones that alloacte it) but 40 bytes in others (the ones that use it). The cause is an off_t type that gets a different size in different compilation units for some yet-to-be-explained reason. But the effect is disasterous; the size/offset members of the struct are at different offsets, and result in mostly complete garbage. The parser in perf is so robust that this all gets hidden, and after skipping an certain amount of samples, it recovers.... so this bug is not normally noticed. .... except when you want every sample to be exact. Fix this by just using an explicitly sized type. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <4A655917.9080504@linux.intel.com>
| | * | perf_counter: Fix throttle/unthrottle event loggingAnton Blanchard2009-07-221-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Right now we only print PERF_EVENT_THROTTLE + 1 (ie PERF_EVENT_UNTHROTTLE). Fix this to print both a throttle and unthrottle event. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20090722130546.GE9029@kryten>
| | * | perf_counter: Improve perf stat and perf record option parsingAnton Blanchard2009-07-222-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | perf stat and perf record currently look for all options on the command line. This can lead to some confusion: # perf stat ls -l Error: unknown switch `l' While we can work around this by adding '--' before the command, the git option parsing code can stop at the first non option: # perf stat ls -l Performance counter stats for 'ls -l': .... Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20090722130412.GD9029@kryten>
| | * | perf_counter: PERF_SAMPLE_ID and inherited countersPeter Zijlstra2009-07-224-120/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Anton noted that for inherited counters the counter-id as provided by PERF_SAMPLE_ID isn't mappable to the id found through PERF_RECORD_ID because each inherited counter gets its own id. His suggestion was to always return the parent counter id, since that is the primary counter id as exposed. However, these inherited counters have a unique identifier so that events like PERF_EVENT_PERIOD and PERF_EVENT_THROTTLE can be specific about which counter gets modified, which is important when trying to normalize the sample streams. This patch removes PERF_EVENT_PERIOD in favour of PERF_SAMPLE_PERIOD, which is more useful anyway, since changing periods became a lot more common than initially thought -- rendering PERF_EVENT_PERIOD the less useful solution (also, PERF_SAMPLE_PERIOD reports the more accurate value, since it reports the value used to trigger the overflow, whereas PERF_EVENT_PERIOD simply reports the requested period changed, which might only take effect on the next cycle). This still leaves us PERF_EVENT_THROTTLE to consider, but since that _should_ be a rare occurrence, and linking it to a primary id is the most useful bit to diagnose the problem, we introduce a PERF_SAMPLE_STREAM_ID, for those few cases where the full reconstruction is important. [Does change the ABI a little, but I see no other way out] Suggested-by: Anton Blanchard <anton@samba.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1248095846.15751.8781.camel@twins>
| | * | perf_counter: Plug more stack leaksPeter Zijlstra2009-07-221-2/+21
| | | | | | | | | | | | | | | | | | | | | | | | Per example of Arjan's patch, I went through and found a few more. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
| | * | perf: Fix stack data leakArjan van de Ven2009-07-221-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the "reserved" field was not initialized to zero, resulting in 4 bytes of stack data leaking to userspace.... Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
| | * | perf_counter: Remove unused variablesPeter Zijlstra2009-07-221-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | Fix a gcc unused variables warning. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
| | * | Merge commit 'tip/perfcounters/core' into perf-counters-for-linusPeter Zijlstra2009-07-2210-142/+556
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| | | * | perf_counter, x86: Extend perf_counter Pentium M supportDaniel Qarras2009-07-131-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I've attached a patch to remove the Pentium M special casing of EMON and as noticed at least with my Pentium M the hardware PMU now works: Performance counter stats for '/bin/ls /var/tmp': 1.809988 task-clock-msecs # 0.125 CPUs 1 context-switches # 0.001 M/sec 0 CPU-migrations # 0.000 M/sec 224 page-faults # 0.124 M/sec 1425648 cycles # 787.656 M/sec 912755 instructions # 0.640 IPC Vince suggested that this code was trying to address erratum Y17 in Pentium-M's: http://download.intel.com/support/processors/mobile/pm/sb/25266532.pdf But that erratum (related to IA32_MISC_ENABLES.7) does not affect perfcounters as we dont use this toggle to disable RDPMC and WRMSR/RDMSR access to performance counters. We keep cr4's bit 8 (X86_CR4_PCE) clear so unprivileged RDPMC access is not allowed anyway. Cc: Vince Weaver <vince@deater.net> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@googlemail.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | | * | perf report: Introduce -n/--show-nr-samplesArnaldo Carvalho de Melo2009-07-112-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [acme@doppio pahole]$ perf report -ns comm,dso,symbol -d /lib64/libc-2.10.1.so -C pahole | head -17 21.94% 32101 [.] _int_malloc 20.10% 29402 [.] __GI_strcmp 16.77% 24533 [.] __tsearch 12.61% 18450 [.] malloc_consolidate 6.42% 9394 [.] _int_free 6.28% 9191 [.] __tfind 4.56% 6678 [.] __GI___libc_free 4.46% 6520 [.] _IO_vfprintf_internal 2.59% 3786 [.] __malloc 1.17% 1716 [.] __GI_memcpy [acme@doppio pahole]$ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1247325517-12272-5-git-send-email-acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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