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2011-05-23clocksource: ARM sp804: obtain sp804 timer rate via clksRussell King
This allows platforms to specify the rate of the SP804 clocksource via the clk subsystem. While ARM boards clock these at 1MHz, BCMRing also has SP804 timers but are clocked at different rates. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: ARM sp804: allow clocksource name to be specifiedRussell King
This allows platforms to specify the clocksource name upon registration, which is necessary should they wish to register more than one sp804 clocksource. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert OMAP1 to 32-bit down counting clocksourceRussell King
Convert the OMAP1 32-bit down counting clocksource to the generic clocksource infrastructure. Tested-by: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert MXS timrotv2 to 32-bit down counting clocksourceRussell King
Convert the MXS timrotv2 32-bit down counting clocksource to the generic clocksource infrastructure. Cc: Sascha Hauer <kernel@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@freescale.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert SPEAr platforms 16-bit up counting clocksourceRussell King
Convert SPEAr platforms 16-bit up counting clocksource, which requires a 16-bit register access read rather than 32-bit. Acked-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert Integrator/AP 16-bit down counting clocksourceRussell King
Convert the Integrator/AP 16-bit down-counting clocksource to the generic clocksource infrastructure. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert W90x900 24-bit down counting clocksourceRussell King
Convert the W90x900 24-bit down-counting clocksource to the generic mmio clocksource infrastructure Acked-by: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert ARM 32-bit down counting clocksourcesRussell King
Convert SP804, MXC, Nomadik and Orion 32-bit down-counting clocksources to generic mmio clocksource infrastructure. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Alessandro Rubini <rubini@unipv.it> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Lennert Buytenhek <kernel@wantstofly.org> Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert ARM 32-bit up counting clocksourcesRussell King
Convert ixp4xx, lpc32xx, mxc, netx, pxa, sa1100, tcc8k, tegra and u300 to use the generic mmio clocksource recently introduced. Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Krzysztof Halasa <khc@pm.waw.pl> Acked-by: Eric Miao <eric.y.miao@gmail.com> Acked-by: "Hans J. Koch" <hjk@hansjkoch.de> Acked-by: Colin Cross <ccross@android.com> Cc: Erik Gilling <konkers@android.com> Cc: Olof Johansson <olof@lixom.net> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: add common mmio clocksourceRussell King
Add a generic mmio clocksource, covering both 32-bit and 16-bit register access sizes, for up or down counters. This can be used to easily create clocksources for simple counter-based implementations. Cc: Alessandro Rubini <rubini@unipv.it> Cc: Colin Cross <ccross@android.com> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Erik Gilling <konkers@android.com> Acked-by: "Hans J. Koch" <hjk@hansjkoch.de> Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Krzysztof Halasa <khc@pm.waw.pl> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Linus Walleij <linus.walleij@stericsson.com> Cc: linux-omap@vger.kernel.org Acked-by: Nicolas Pitre <nico@fluxnic.net> Cc: Olof Johansson <olof@lixom.net> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Viresh Kumar <viresh.kumar@st.com> Cc: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23ARM: update sa1100 to reflect PXA updatesRussell King
Update sa1100 clockevents code to reflect what its later derivative does with clockevents_calc_mult_shift(). Use OSSR_M* constants too. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23ARM: omap1: convert to using readl/writel instead of volatile structRussell King
Tested-by: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23ARM: omap1: delete useless interrupt handlerRussell King
The OMAP1 clocksource interrupt handler just increments a variable which otherwise isn't used, so this seems to be unnecessary. Tony Lindgren confirms, so lets remove it. Acked-by: Kevin Hilman <khilman@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23ARM: s5p: consolidate selection of timer registerRussell King
s5p duplicates the runtime selection of the timer register three times. Move this out into a separate function. FIXME: It is unclear whether this code needs to support true runtime selection of the timer register, or whether it can be selected once at init time. Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23Merge branch 'slab/next' into for-linusPekka Enberg
Conflicts: mm/slub.c
2011-05-23Merge branch 'hwmon-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging: hwmon: (coretemp) Fix checkpatch errors hwmon: Remove pkgtemp driver hwmon: (coretemp) Merge pkgtemp with coretemp hwmon: (pmbus) Add support for Analog Devices ADM1275 hwmon: (pmbus) Support for TI UCD90xxx series Sequencer and System Health Controllers hwmon: (pmbus) Add support for TI UCD9200 series of PWM System Controllers hwmon: (pmbus) Use device specific function to read fan configuration hwmon: (pmbus) Expand scope of device specific get_status function hwmon: (pmbus) Introduce infrastructure to detect sensors and limit registers hwmon: Driver for MAX16065 System Manager and compatibles hwmon: (sht15) add support for CRC validation hwmon: (sht15) add support for the status register hwmon: (sht15) clean-up the probe function hwmon: (sht15) general code clean-up hwmon: Add support for MAX6642
2011-05-23Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf tools: Fix sample size bit operations perf tools: Fix ommitted mmap data update on remap watchdog: Change the default timeout and configure nmi watchdog period based on watchdog_thresh watchdog: Disable watchdog when thresh is zero watchdog: Only disable/enable watchdog if neccessary watchdog: Fix rounding bug in get_sample_period() perf tools: Propagate event parse error handling perf tools: Robustify dynamic sample content fetch perf tools: Pre-check sample size before parsing perf tools: Move evlist sample helpers to evlist area perf tools: Remove junk code in mmap size handling perf tools: Check we are able to read the event size on mmap
2011-05-23ARM: 6939/1: fix missing 'cpu_relax()' declarationMarc Zyngier
ARM build fails with the following symptom: CC arch/arm/kernel/asm-offsets.s In file included from include/linux/seqlock.h:29, from include/linux/time.h:8, from include/linux/timex.h:56, from include/linux/sched.h:57, from arch/arm/kernel/asm-offsets.c:13: include/linux/spinlock.h: In function 'spin_unlock_wait': include/linux/spinlock.h:360: error: implicit declaration of function 'cpu_relax' make[1]: *** [arch/arm/kernel/asm-offsets.s] Error 1 Fix it by including <asm/processor.h>. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) b43: fix comment typo reqest -> request Haavard Skinnemoen has left Atmel cris: typo in mach-fs Makefile Kconfig: fix copy/paste-ism for dell-wmi-aio driver doc: timers-howto: fix a typo ("unsgined") perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c md, raid5: Fix spelling error in comment ('Ofcourse' --> 'Of course'). treewide: fix a few typos in comments regulator: change debug statement be consistent with the style of the rest Revert "arm: mach-u300/gpio: Fix mem_region resource size miscalculations" audit: acquire creds selectively to reduce atomic op overhead rtlwifi: don't touch with treewide double semicolon removal treewide: cleanup continuations and remove logging message whitespace ath9k_hw: don't touch with treewide double semicolon removal include/linux/leds-regulator.h: fix syntax in example code tty: fix typo in descripton of tty_termios_encode_baud_rate xtensa: remove obsolete BKL kernel option from defconfig m68k: fix comment typo 'occcured' arch:Kconfig.locks Remove unused config option. treewide: remove extra semicolons ...
2011-05-23Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (36 commits) HID: hid-multitouch: cosmetic changes, sort classes and devices HID: hid-multitouch: class MT_CLS_STANTUM is redundant with MT_CLS_CONFIDENCE HID: hid-multitouch: add support for Unitec panels HID: hid-multitouch: add support for Touch International panels HID: hid-multitouch: add support for GoodTouch panels HID: hid-multitouch: add support for CVTouch panels HID: hid-multitouch: add support for ActionStar panels HID: hiddev: fix race between hiddev_disconnect and hiddev_release HID: magicmouse: ignore 'ivalid report id' while switching modes HID: fix a crash in hid_report_raw_event() function. HID: hid-multitouch: add support for Elo TouchSystems 2515 IntelliTouch Plus HID: assorted usage updates from hut 1.12 HID: roccat: fix actual/startup profile sysfs attribute in koneplus HID: hid-multitouch: Add support for Lumio panels HID: 'name' and 'phys' in 'struct hid_device' can never be NULL HID: hid-multitouch: add support for Ilitek dual-touch panel HID: picolcd: Avoid compile warning/error triggered by copy_from_user() HID: add support for Logitech G27 wheel HID: hiddev: fix error path in hiddev_read when interrupted HID: add support for Sony Navigation Controller ...
2011-05-23Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/apm * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/apm: apm-emulation: apm_mutex breaks ACK; remove it APM: take over maintainership
2011-05-23ARM: 6895/1: mach-ux500: fix SMP secondary startup regressionLinus Walleij
Commit e2a083dc0da9aa6437e14811198379b18cdfa7f8 "ARM: consolidate SMP cross call implementation" broke the ux500 compilation since the smp.h header declared a function called from headsmp.S. This fixes it up by declaring it locally instead. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23ARM: consolidate SMP cross call implementationRussell King
Rather than having each platform class provide a mach/smp.h header for smp_cross_call(), arrange for them to register the function with the core ARM SMP code instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (346 commits) ASoC: core: Don't set "(null)" as a driver name ALSA: hda - Use LPIB for ATI/AMD chipsets as default Revert "ALSA: hda - Use position_fix=3 as default for AMD chipsets" ASoC: Tegra: Fix compile when debugfs not enabled ASoC: spdif-dit: Add missing MODULE_* SOUND: OSS: Remove Au1550 driver. ALSA: hda - add Intel Panther Point HDMI codec id ALSA: emu10k1 - Add dB range to Bass and Treble for SB Live! ALSA: hda - Remove PCM mixer elements from Virtual Master of realtek ALSA: hda - Fix input-src parse in patch_analog.c ASoC: davinci-mcasp: enable ping-pong SRAM buffers ASoC: add iPAQ hx4700 machine driver ASoC: Asahi Kasei AK4641 codec driver ALSA: hda - Enable Realtek ALC269 codec input layer beep ALSA: intel8x0m: enable AMD8111 modem ALSA: HDA: Add jack detection for HDMI ALSA: sound, core, pcm_lib: fix xrun_log ASoC: Max98095: Move existing NULL check before pointer dereference. ALSA: sound, core, pcm_lib: xrun_log: log also in_interrupt ALSA: usb-audio - Add support for USB X-Fi S51 Pro ...
2011-05-23Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Eliminate various 'set but not used' warnings x86, SMEP: Fix section mismatch warnings x86, amd: Use _safe() msr access for GartTlbWlk disable code
2011-05-23block: move bd_set_size() above rescan_partitions() in __blkdev_get()Tejun Heo
02e352287a4 (block: rescan partitions on invalidated devices on -ENOMEDIA too) relocated partition rescan above explicit bd_set_size() to simplify condition check. As rescan_partitions() does its own bdev size setting, this doesn't break anything; however, rescan_partitions() prints out the following messages when adjusting bdev size, which can be confusing. sda: detected capacity change from 0 to 146815737856 sdb: detected capacity change from 0 to 146815737856 This patch restores the original order and remove the warning messages. stable: Please apply together with 02e352287a4 (block: rescan partitions on invalidated devices on -ENOMEDIA too). Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Tony Luck <tony.luck@gmail.com> Tested-by: Tony Luck <tony.luck@gmail.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-23ARM: Fix generic irq chipRussell King
As a result of c42321c (genirq: Make generic irq chip depend on CONFIG_GENERIC_IRQ_CHIP), we now need those platforms using this in my tree to select this symbol. Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Nicolas Pitre <nico@fluxnic.net> Acked-by: Sekhar Nori <nsekhar@ti.com> Acked-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23Merge branch 'kvm-updates/2.6.40' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
* 'kvm-updates/2.6.40' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (131 commits) KVM: MMU: Use ptep_user for cmpxchg_gpte() KVM: Fix kvm mmu_notifier initialization order KVM: Add documentation for KVM_CAP_NR_VCPUS KVM: make guest mode entry to be rcu quiescent state KVM: x86 emulator: Make jmp far emulation into a separate function KVM: x86 emulator: Rename emulate_grpX() to em_grpX() KVM: x86 emulator: Remove unused arg from emulate_pop() KVM: x86 emulator: Remove unused arg from writeback() KVM: x86 emulator: Remove unused arg from read_descriptor() KVM: x86 emulator: Remove unused arg from seg_override() KVM: Validate userspace_addr of memslot when registered KVM: MMU: Clean up gpte reading with copy_from_user() KVM: PPC: booke: add sregs support KVM: PPC: booke: save/restore VRSAVE (a.k.a. USPRG0) KVM: PPC: use ticks, not usecs, for exit timing KVM: PPC: fix exit accounting for SPRs, tlbwe, tlbsx KVM: PPC: e500: emulate SVR KVM: VMX: Cache vmcs segment fields KVM: x86 emulator: consolidate segment accessors KVM: VMX: Avoid reading %rip unnecessarily when handling exceptions ...
2011-05-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits) bnx2x: allow device properly initialize after hotplug bnx2x: fix DMAE timeout according to hw specifications bnx2x: properly handle CFC DEL in cnic flow bnx2x: call dev_kfree_skb_any instead of dev_kfree_skb net: filter: move forward declarations to avoid compile warnings pktgen: refactor pg_init() code pktgen: use vzalloc_node() instead of vmalloc_node() + memset() net: skb_trim explicitely check the linearity instead of data_len ipv4: Give backtrace in ip_rt_bug(). net: avoid synchronize_rcu() in dev_deactivate_many net: remove synchronize_net() from netdev_set_master() rtnetlink: ignore NETDEV_RELEASE and NETDEV_JOIN event net: rename NETDEV_BONDING_DESLAVE to NETDEV_RELEASE bridge: call NETDEV_JOIN notifiers when add a slave netpoll: disable netpoll when enslave a device macvlan: Forward unicast frames in bridge mode to lowerdev net: Remove linux/prefetch.h include from linux/skbuff.h ipv4: Include linux/prefetch.h in fib_trie.c netlabel: Remove prefetches from list handlers. drivers/net: add prefetch header for prefetch users ... Fixed up prefetch parts: removed a few duplicate prefetch.h includes, fixed the location of the igb prefetch.h, took my version of the skbuff.h code without the extra parentheses etc.
2011-05-23Merge branch 'exec_rm_compat' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc * 'exec_rm_compat' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc: exec: document acct_arg_size() exec: unify do_execve/compat_do_execve code exec: introduce struct user_arg_ptr exec: introduce get_user_arg_ptr() helper
2011-05-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixesLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes: GFS2: Wait properly when flushing the ail list GFS2: Wipe directory hash table metadata when deallocating a directory
2011-05-23Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest: ktest: Allow options to be used by other options ktest: Create variables for the ktest config files ktest: Reboot after each patchcheck run ktest: Reboot to good kernel after every bisect run ktest: If test failed due to timeout, print that ktest: Fix post install command
2011-05-23Merge commit '559fa6e76b27' into perf/urgentIngo Molnar
Merge reason: this commit was queued up quite some time ago but was forgotten about. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-23hrtimers: Reorder clock basesThomas Gleixner
The ordering of the clock bases is historical due to the CLOCK_REALTIME and CLOCK_MONOTONIC constants. Now the hrtimer bases have their own enumeration due to the gap between CLOCK_MONOTONIC and CLOCK_BOOTTIME. So we can be more clever as most timers end up on the CLOCK_MONOTONIC base due to the virtue of POSIX declaring that relative CLOCK_REALTIME timers are not affected by time changes. In desktop environments this is slowly changing as applications switch to absolute timers, but I've observed empty CLOCK_REALTIME bases often enough. There is no performance penalty or overhead when CLOCK_REALTIME timers are active, but in case they are not we don't skip over a full cache line. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Peter Zijlstra <peterz@infradead.org>
2011-05-23hrtimers: Avoid touching inactive timer basesThomas Gleixner
Instead of iterating over all possible timer bases avoid it by marking the active bases in the cpu base. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Peter Zijlstra <peterz@infradead.org>
2011-05-23hrtimers: Make struct hrtimer_cpu_base layout less stupidThomas Gleixner
In the HIGHRES=y case we access the members at the end of struct hrtimer_cpu_base first and then the one at the beginning. Move the hrtimer data to front, so we have linear progressing access. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Peter Zijlstra <peterz@infradead.org>
2011-05-23timerfd: Manage cancelable timers in timerfdThomas Gleixner
Peter is concerned about the extra scan of CLOCK_REALTIME_COS in the timer interrupt. Yes, I did not think about it, because the solution was so elegant. I didn't like the extra list in timerfd when it was proposed some time ago, but with a rcu based list the list walk it's less horrible than the original global lock, which was held over the list iteration. Requested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Peter Zijlstra <peterz@infradead.org>
2011-05-23perf tools: Fix sample size bit operationsFrederic Weisbecker
What we want is to count the number of bits in the mask, not some other random operation written in the middle of the night. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1306148788-6179-2-git-send-email-fweisbec@gmail.com [ Fixed perf_event__names[] alignment which was nearby and hurting my eyes ... ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-23perf tools: Fix ommitted mmap data update on remapFrederic Weisbecker
Commit eac9eacee16 "perf tools: Check we are able to read the event size on mmap" brought a check to ensure we can read the size of the event before dereferencing it, and do a remap otherwise to move the buffer forward. However that remap was ommitting all the necessary work to update the new page offset, head, and to unmap previous pages, etc... To fix this, gather all the code that fetches the event in a seperate helper which does all the necessary checks about the header/event size and tells us anytime a remap is needed. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1306148788-6179-3-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-23apm-emulation: apm_mutex breaks ACK; remove itPaul Parsons
apm_mutex is locked by a process (e.g. apm -s) at the start of apm_ioctl() and remains locked while pm_suspend() is called. Any subsequent process trying to ACK the suspend (e.g. apmd) is then blocked at the start of apm_ioctl(), causing the suspend to be delayed for 5 seconds in apm_suspend_notifier() while the ACK times out. In short, ACKs don't work. The driver's data structures are sufficiently protected by assorted locks. And pm_suspend() has its own mutex to prevent reentrancy. Consequently there is no obvious requirement for apm_mutex, which evolved from earlier BKL calls. So let's remove it. Signed-off-by: Paul Parsons <lost.distance@yahoo.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-05-23Merge branches 'doc', 'multitouch', 'upstream' and 'upstream-fixes' into ↵Jiri Kosina
for-linus
2011-05-23watchdog: Change the default timeout and configure nmi watchdog period based ↵Mandeep Singh Baines
on watchdog_thresh Before the conversion of the NMI watchdog to perf event, the watchdog timeout was 5 seconds. Now it is 60 seconds. For my particular application, netbooks, 5 seconds was a better timeout. With a short timeout, we catch faults earlier and are able to send back a panic. With a 60 second timeout, the user is unlikely to wait and will instead hit the power button, causing us to lose the panic info. This change configures the NMI period to watchdog_thresh and sets the softlockup_thresh to watchdog_thresh * 2. In addition, watchdog_thresh was reduced to 10 seconds as suggested by Ingo Molnar. Signed-off-by: Mandeep Singh Baines <msb@chromium.org> Cc: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/1306127423-3347-4-git-send-email-msb@chromium.org Signed-off-by: Ingo Molnar <mingo@elte.hu> LKML-Reference: <20110517071642.GF22305@elte.hu>
2011-05-23watchdog: Disable watchdog when thresh is zeroMandeep Singh Baines
This restores the previous behavior of softlock_thresh. Currently, setting watchdog_thresh to zero causes the watchdog kthreads to consume a lot of CPU. In addition, the logic of proc_dowatchdog_thresh and proc_dowatchdog_enabled has been factored into proc_dowatchdog. Signed-off-by: Mandeep Singh Baines <msb@chromium.org> Cc: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/1306127423-3347-3-git-send-email-msb@chromium.org Signed-off-by: Ingo Molnar <mingo@elte.hu> LKML-Reference: <20110517071018.GE22305@elte.hu>
2011-05-23watchdog: Only disable/enable watchdog if neccessaryMandeep Singh Baines
Don't take any action on an unsuccessful write to /proc. Signed-off-by: Mandeep Singh Baines <msb@chromium.org> Cc: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/1306127423-3347-2-git-send-email-msb@chromium.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-23watchdog: Fix rounding bug in get_sample_period()Mandeep Singh Baines
In get_sample_period(), softlockup_thresh is integer divided by 5 before the multiplication by NSEC_PER_SEC. This results in softlockup_thresh being rounded down to the nearest integer multiple of 5. For example, a softlockup_thresh of 4 rounds down to 0. Signed-off-by: Mandeep Singh Baines <msb@chromium.org> Cc: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/1306127423-3347-1-git-send-email-msb@chromium.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-05-23b43: fix comment typo reqest -> requestJim Cromie
Recent trivial fix corrected 'occured', but left 'reqest'. codespell needs another dictionary entry. cc: Lucas De Marchi <lucas.demarchi@profusion.mobi> Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-05-23HID: hid-multitouch: cosmetic changes, sort classes and devicesBenjamin Tissoires
This patch sorts the defs for the MT_CLS. I choose to split generic classes and device specific ones to be able to add more generic classes in the future. It also put eGalax devices at their right place (alphabetically) in mt_devices. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-05-23sh: Ignore R_SH_NONE module relocations.Paul Mundt
Some modules may end up with R_SH_NONE relocs with the right combination of compiler/kernel config (specifically dwarf unwinder), so simply trap and ignore them instead of letting them get down to the error path. Reported-by: Carmelo AMOROSO <carmelo.amoroso@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23sh_mobile_meram: Add support for NV24 framebuffersDamian
Since the NV24 framebuffer has a CbCr plane that is twice as wide as the Y plane, it needs to be handled as a special case. Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-05-23sh_mobile_meram: MERAM framework for LCDCDamian
Based on the patch by Takanari Hayama <taki@igel.co.jp> Adds support framework necessary to use Media RAM (MERAM) caching functionality with the LCDC. The MERAM is accessed through up to 4 Interconnect Buffers (ICBs). ICB numbers and MERAM address ranges to use are specified in by filling in the .meram_cfg member of the LCDC platform data Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>