- 21 7月, 2010 1 次提交
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由 Andres Salomon 提交于
My Collabora address is no longer enabled - update the MODULE_AUTHOR fields of drivers to my current email address. Signed-off-by: NAndres Salomon <dilinger@queued.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 22 6月, 2010 1 次提交
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由 Paul Mundt 提交于
The previous CMT fixup accidentally copied in the TMU shift value, reset this back to its original value while preserving the TMU fix. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 02 6月, 2010 2 次提交
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由 Paul Mundt 提交于
Based on the sh_tmu change in 66f49121 ("clocksource: sh_tmu: compute mult and shift before registration"). The same issues impact the sh_cmt driver, so we take the same approach here. Cc: stable@kernel.org Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Aurelien Jarno 提交于
Since commit 98962465 ("nohz: Prevent clocksource wrapping during idle"), the CPU of an R2D board never goes to idle. This commit assumes that mult and shift are assigned before the clocksource is registered. As a consequence the safe maximum sleep time is negative and the CPU never goes into idle. This patch fixes the problem by moving mult and shift initialization from sh_tmu_clocksource_enable() to sh_tmu_register_clocksource(). Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> Cc: stable@kernel.org Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 15 4月, 2010 1 次提交
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由 Paul Mundt 提交于
Make sure that the timer IRQs and IPIs aren't enabled for IRQ balancing. IPIs are disabled as a result of being percpu while the timers simply disable balancing outright. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 30 3月, 2010 1 次提交
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由 Tejun Heo 提交于
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: NTejun Heo <tj@kernel.org> Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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- 29 3月, 2010 1 次提交
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由 Paul Mundt 提交于
We want to get rid of the clock string from platform data entirely, depending on the clkdev-based clock lookup to do the right thing for us instead. This converts all of the SH drivers to request their associated function clocks directly, and if there is no match for that then we fall back on the legacy lookup while warning about it. After all of the outstanding CPUs have been converted to clkdev lookups the clock string will be killed off completely. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 13 3月, 2010 1 次提交
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由 Jens Rottmann 提交于
Due to a hardware limitation cs5535_mfgpt_free_timer() cannot actually release the timer hardware, but it will at least free the now unreferenced struct associated with it so calling it is the cleaner thing to do. Signed-off-by: NJens Rottmann <JRottmann@LiPPERTEmbedded.de> Acked-by: NAndres Salomon <dilinger@collabora.co.uk> Cc: Jordan Crouse <jordan@cosmicpenguin.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 10 3月, 2010 1 次提交
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由 Paul Mundt 提交于
There is no need to copy in the name from the sh timer config now that dev_name() is available early. We prefer the dev_name() variant for consistent naming. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 07 3月, 2010 1 次提交
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由 Randy Dunlap 提交于
Move the CS5535 MFGPT hrtimer kconfig option to be with the other MFGPT options. This makes it easier to find and also removes it from the main "Device Drivers" menu, where it should not have been. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Acked-by: NAndres Salomon <dilinger@collabora.co.uk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 25 2月, 2010 1 次提交
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由 Paul Mundt 提交于
All of the SH clocksource drivers follow the scheme that the IRQ is setup prior to registering the clockevent. The interrupt handler in the clockevent cases looks to the event handler function pointer being filled in by the registration code, permitting us to get in to situations where asserted IRQs step in to the handler before registration has had a chance to complete and hitting a NULL pointer deref. In practice this is not an issue for most platforms, but some of them with fairly special loaders (or that are chain-loading from another kernel) may enter in to this situation. This fixes up the oops reported by Rafael on hp6xx. Reported-and-tested-by: NRafael Ignacio Zurita <rafaelignacio.zurita@gmail.com> Cc: stable@kernel.org Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 23 2月, 2010 1 次提交
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由 Jens Rottmann 提交于
geode-mfgpt: restore previous behavior for selecting IRQ The MFGPT IRQ used to be, in order of decreasing priority, * IRQ supplied by the user as a boot-time parameter, * IRQ previously set by the BIOS or another driver, * default IRQ given at compile time. Return to this behavior, which got broken when splitting the MFGPT/clocksource driver for 2.6.33-rc1. Signed-off-by: NJens Rottmann <JRottmann@LiPPERTEmbedded.de> Acked-by: NAndres Salomon <dilinger@collabora.co.uk> Cc: Jordan Crouse <jordan.crouse@amd.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> Acked-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 05 2月, 2010 1 次提交
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由 Magnus Damm 提交于
Add code to start the CMT timer on clocksource resume. While at it handle the suspend case as well. Remove the platform device specific suspend calls. This makes sure the timer is started during sysdev_resume(). Without this patch the clocksource may be read as suspended, this after sysdev resume but before platform device resume. Signed-off-by: NMagnus Damm <damm@opensource.se> Cc: john stultz <johnstul@us.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 16 12月, 2009 1 次提交
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由 Andres Salomon 提交于
This is based on the old code in arch/x86/kernel/mfgpt_32.c, but is modular and not Geode-specific. There's no reason why the clock event device needs to be registered so early at boot; the clockevent code is perfectly capable of dynamic switching. [akpm@linux-foundation.org: add linux/irq.h include] Signed-off-by: NAndres Salomon <dilinger@collabora.co.uk> Cc: Jordan Crouse <jordan@cosmicpenguin.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: john stultz <johnstul@us.ibm.com> Cc: Chris Ball <cjb@laptop.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 15 8月, 2009 1 次提交
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由 Magnus Damm 提交于
This patch updates the SuperH CMT driver with suspend and resume callbacks for the suspend-to-ram case. This patch stops the CMT channel at suspend time to avoid unwanted wake up events. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 24 6月, 2009 1 次提交
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由 Shin-ichiro KAWASAKI 提交于
Avoid undocumented vague TMU behavior when zero value is set to TCOR. This primarily fixes up issues encountered under qemu with a zero-length period, while the hardware itself is fairly ambivalent one way or the other. Signed-off-by: NShin-ichiro KAWASAKI <kawasaki@juno.dti.ne.jp> Acked-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 17 6月, 2009 2 次提交
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由 Magnus Damm 提交于
Modify the CMT and TMU drivers to disable interrupts when disabling the timer. Only using start/stop bits is not enough. This fixes a bootup hang on Migo-R when the CMT is replaced by TMU for clockevents but the CMT keeps on delivering irqs even though the timer start bit is off. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Arnd Bergmann 提交于
PIT_TICK_RATE is currently defined in four architectures, but in three different places. While linux/timex.h is not the perfect place for it, it is still a reasonable replacement for those drivers that traditionally use asm/timex.h to get CLOCK_TICK_RATE and expect it to be the PIT frequency. Note that for Alpha, the actual value changed from 1193182UL to 1193180UL. This is unlikely to make a difference, and probably can only improve accuracy. There was a discussion on the correct value of CLOCK_TICK_RATE a few years ago, after which every existing instance was getting changed to 1193182. According to the specification, it should be 1193181.818181... Signed-off-by: NArnd Bergmann <arnd@arndb.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Len Brown <lenb@kernel.org> Cc: john stultz <johnstul@us.ibm.com> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 14 6月, 2009 1 次提交
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由 Paul Mundt 提交于
The irqaction.mask is legacy code that is wholly unused and going away, so simply drop its use in the SH drivers completely. Fixes up build failures in -next. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 03 5月, 2009 4 次提交
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由 Paul Mundt 提交于
Neither of these need to be exported, so just make them static. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
All of the SH timers use a roughly identical structure for platform data, which presently is broken out for each block. Consolidate all of these definitions, as there is no reason for them to be broken out in the first place. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch adds a TMU driver for the SuperH architecture. The TMU driver is a platform driver with early platform support to allow using a TMU channel as clockevent or clocksource during system bootup or later. Clocksource or clockevent can be selected. Both periodic and oneshot clockevents are supported. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch adds a MTU2 driver for the SuperH architecture. The MTU2 driver is a platform driver with early platform support to allow using a MTU2 channel as only clockevent during system bootup. Clocksource on sh2a is currently unsupported due to code generation issues with 64-bit math, so at this point only periodic clockevent support is in place. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 30 4月, 2009 1 次提交
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由 Magnus Damm 提交于
This patch contains various fixes for 16-bit cmt hardware. With this applied periodic clockevents work fine on sh7203. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 28 4月, 2009 2 次提交
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由 Magnus Damm 提交于
This patch moves the SuperH timer setup code from time_init() to late_time_init(). Good things about this change: - interrupts: they are enabled at late_time_init() - mm: regular kmalloc() can be used at late_time_init() Together with moving to late_time_init() this patch changes the sh_cmt driver to always allocate with kmalloc(). This simplifies the code a bit and also fixes section mismatches. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch improves the sh_cmt clocksource handling. Currently the counter value is ignored in the case of overflow. With this patch the overflow flag is read before and after reading the counter, removing any counter value and overflow flag mismatch issues. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 22 4月, 2009 2 次提交
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由 Magnus Damm 提交于
Add clocksource support to the sh_cmt driver. With this in place we can do tickless with a single CMT channel. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
Pass clocksource pointer to the read() callback for clocksources. This allows us to share the callback between multiple instances. [hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods] [akpm@linux-foundation.org: cleanup] Signed-off-by: NMagnus Damm <damm@igel.co.jp> Acked-by: NJohn Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: NHugh Dickins <hugh@veritas.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 19 4月, 2009 1 次提交
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由 Magnus Damm 提交于
Add Early Platform Driver support to the sh_cmt driver using the earlytimer class. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 02 4月, 2009 1 次提交
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由 Magnus Damm 提交于
Update the sh_cmt driver to make use of recent irq and clockevent changes: - use remove_irq() together with setup_irq() - remove mult workaround since WARN_ON() now has been moved Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 29 1月, 2009 2 次提交
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由 Ingo Molnar 提交于
We are getting rid of subarchitecture support - move the hook files to asm/. (These are now stale and should be replaced with more explicit runtime mechanisms - but the transition is simpler this way.) Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Magnus Damm 提交于
SuperH CMT clockevent driver. Both 16-bit and 32-bit CMT versions are supported, but only 32-bit is tested. This driver contains support for both clockevents and clocksources, but no unregistration is supported at this point. Works fine as clock source and/or event in periodic or oneshot mode. Tested on sh7722 and sh7723, but should work with any cpu/architecture. This version is lacking clocksource and early platform driver support for now - this to minimize the amount of dependencies. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 13 12月, 2008 1 次提交
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由 Rusty Russell 提交于
Impact: change calling convention of existing clock_event APIs struct clock_event_timer's cpumask field gets changed to take pointer, as does the ->broadcast function. Another single-patch change. For safety, we BUG_ON() in clockevents_register_device() if it's not set. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Cc: Ingo Molnar <mingo@elte.hu>
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- 12 12月, 2008 1 次提交
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由 Bjorn Helgaas 提交于
acpi_pm_read_slow() is only used when CONFIG_PCI=y, so move the definition inside the ifdef. Otherwise this causes a "defined but not used" warning when building with CONFIG_ACPI=y and CONFIG_PCI=n (that's not supported yet, but it could be). Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com> Cc: mingo@elte.hu Cc: johnstul@us.ibm.com Cc: akpm@linux-foundation.org Cc: bjorn.helgaas@hp.com Cc: lenb@kernel.org Cc: linux@dominikbrodowski.net Cc: tglx@linutronix.de Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Len Brown <lenb@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
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- 11 9月, 2008 1 次提交
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由 Dominik Brodowski 提交于
Actually check the monotonicity of the ACPI PMTMR ten times, only delay for 0.9 miliseconds at most, and bail out early if some problem is determined. Reported-by: NJochen Voß <jochen.voss@googlemail.com> Signed-off-by: NDominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 06 9月, 2008 2 次提交
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由 Dominik Brodowski 提交于
The current check for monotonicity is way too weak: Andreas Mohr reports ( http://lkml.org/lkml/2008/8/10/77 ) that on one of his test systems the current check only triggers in 50% of all cases, leading to catastrophic timer behaviour. To fix this issue, expand the check for monotonicity by doing ten consecutive tests instead of one. Signed-off-by: NDominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Dominik Brodowski 提交于
On all hardware (some Intel ICH4, PIIX4 and PIIX4E chipsets) affected by a hardware errata there's about a 4.2% chance that initialization of the ACPI PMTMR fails. On those chipsets, we need to read out the timer value at least three times to get a correct result, for every once in a while (i.e. within a 3 ns window every 69.8 ns) the read returns a bogus result. During normal operation we work around this issue, but during initialization reading a bogus value may lead to -EINVAL even though the hardware is usable. Thanks to Andreas Mohr for spotting this issue. Signed-off-by: NDominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 21 8月, 2008 1 次提交
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由 David Howells 提交于
Check that the value being passed to parse_pmtmr() does not exceed the limits of pmtmr_ioport. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 16 7月, 2008 1 次提交
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由 Linus Torvalds 提交于
For real, this time. The earlier attempt just moved the warning around. Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 12 7月, 2008 1 次提交
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由 Randy Dunlap 提交于
Fix printk format warning in acpi_pm clocksource: linux-next-20080711/drivers/clocksource/acpi_pm.c:231: warning: format '%04lx' expects type 'long unsigned int', but argument 2 has type 'u32' Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Cc: akpm <akpm@linux-foundation.org> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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