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2007-03-14[PATCH] misc NULL noiseAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-09Pull misc-for-upstream into release branchLen Brown
2007-03-09Pull bugzilla-8110 into release branchLen Brown
2007-03-09Pull bugzilla-8066 into release branchLen Brown
2007-03-09Pull bugzilla-7570 into release branchLen Brown
2007-03-09Pull bugzilla-6859 into release branchLen Brown
2007-03-09Pull ibm into release branchLen Brown
2007-03-09ACPI: ec: fix race in status register accessAlexey Starikovskiy
Delay the read of the EC status register until after the event that caused it occurs -- otherwise it is possible to read and act on stale status that was associated with the previous event. Do this with a perpetually incrementing "event_count" to detect when a new event occurs and it is safe to read status. There is no workaround for polling mode -- it is inherently exposed to reading and acting on stale status, since it doesn't have an interrupt to tell it the event completed. http://bugzilla.kernel.org/show_bug.cgi?id=8110 Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-03-09ACPI: Kconfig: hide ACPI menu when CONFIG_PM=nRobert P. J. Day
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-03-09ACPI: video: Fix spelling and grammar mistakesJulius Volz
Correct some of the most obvious spelling and grammar mistakes in drivers/acpi/video.c (comments and printk output). Signed-off-by: Julius Volz <juliusrv@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-03-09ACPI: make blacklist more verboseAnthony Godshall, Ampro Computers, Inc
IMHO, ACPI disabled due to DMI failure or blacklisted year should be noted, as is done with other ACPI blacklisting. This will help people troubleshoot when ACPI isn't working. Status quo is a mysterious "ACPI Disabled" message without explanation on BIOS that implements ACPI but not DMI. This is actually fairly common on embedded x86 boards. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2007-03-08ACPI: ibm-acpi: improve backlight power handlingHenrique de Moraes Holschuh
Improve the backlight code to emulate as much as possible the power management events, as we are unable to really power on or power off the backlight. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Acked-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Len Brown <len.brown@intel.com>
2007-03-08ACPI: fix boot hang w/o "noapic" on MSI MS-6390-LShaohua Li
This is a workaround to handle a BIOS bug where the programmer exchanged the name and index fields of a _PRT entry. Apparently this BIOS error does not confuse Windows and thus it lurks in the field on various machines. boot with "acpi=strict" to disable this workaround http://bugzilla.kernel.org/show_bug.cgi?id=6859 Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-03-07ACPI: ThinkPad Z60m: usb mouse stops working after suspend to RAMKonstantin Karasyov
(http://www.mail-archive.com/linux-acpi@vger.kernel.org/msg05270.html): References : http://lkml.org/lkml/2007/2/21/413 http://lkml.org/lkml/2007/2/28/172 Submitter : Arkadiusz Miskiewicz <arekm@maven.pl> Caused-By : Konstantin Karasyov <konstantin.a.karasyov@intel.com> commit 0a6139027f3986162233adc17285151e78b39cac Do not disable power resources on resume even if there are no devices referencing it. Signed-off-by: Konstantin Karasyov <konstantin.a.karasyov@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-03-07ACPICA: Fix ACPI Global Lock re-entrancyAlexey Starikovskiy
patch "Delete recursive feature of ACPI Global Lock" broke re-entrancy of the Global Lock. The common routine to acquire GL is acpi_ev_acquire_global_lock, so check for re-entrancy _must_ be there, and not anywhere else. http://bugzilla.kernel.org/show_bug.cgi?id=8066#c9 Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-03-01[PATCH] ACPI: make bay depend on dockKristen Carlson Accardi
Since the bay driver depends on the dock driver for proper notification, make this driver depend on the dock driver. Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Acked-by: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-22ACPI: ibm-acpi: make ibm-acpi bay support optionalHenrique de Moraes Holschuh
Make ibm-acpi bay support optional at kernel compile time. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
2007-02-22ACPI: ibm-acpi: fix initial status of backlight deviceHenrique de Moraes Holschuh
The brightness class core does not update the initial status of the device's brightness at register time. Do it by ourselves. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Acked-by: Richard Purdie <rpurdie@rpsys.net>
2007-02-21ACPI: fix S3 fan resume issueKonstantin Karasyov
http://bugzilla.kernel.org/show_bug.cgi?id=7570#c14 Signed-off-by: Konstantin Karasyov <konstantin.a.karasyov@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-20backlight: Separate backlight properties from backlight ops pointersRichard Purdie
Per device data such as brightness belongs to the indivdual device and should therefore be separate from the the backlight operation function pointers. This patch splits the two types of data and allows simplifcation of some code. Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2007-02-20backlight: Remove unneeded owner fieldRichard Purdie
Remove uneeded owner field from backlight_properties structure. Nothing uses it and it is unlikely that it will ever be used. The backlight class uses other means to ensure that nothing references unloaded code. Based on a patch from Dmitry Torokhov <dtor@insightbb.com> Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2007-02-16Pull bugzilla-7897 into release branchLen Brown
2007-02-16Pull bugzilla-7887 into release branchLen Brown
2007-02-16Pull bugzilla-7570 into release branchLen Brown
2007-02-16Pull bugzilla-7200 into release branchLen Brown
2007-02-16Pull bugzilla-7122 into release branchLen Brown
2007-02-16Pull bugzilla-5534 into release branchLen Brown
2007-02-16Pull remove-hotkey into release branchLen Brown
2007-02-16Pull fluff into release branchLen Brown
Conflicts: arch/x86_64/pci/mmconfig.c drivers/acpi/bay.c Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-16ACPI: hotkey: remove driver, per feature-removal-schedule.txtLen Brown
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-16Pull misc-for-upstream into release branchLen Brown
Conflicts: drivers/usb/misc/appledisplay.c Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-16ACPI: bay: use IS_ERR for return of register_platform_device_simpleHenrique de Moraes Holschuh
register_platform_device_simple returns ERR_PTR(foo), so test it with IS_ERR(foo). Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-16ACPI: acpi_unload_table_id() always returns errorJohn Keller
acpi_unload_table_id() is always returning an error status. Also, once the matching table is found, don't bother looking for another match. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-16ACPI: ec: add unlock in error pathAlexey Starikovskiy
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-16[PATCH] clockevents: i386 driversThomas Gleixner
Add clockevent drivers for i386: lapic (local) and PIT/HPET (global). Update the timer IRQ to call into the PIT/HPET driver's event handler and the lapic-timer IRQ to call into the lapic clockevent driver. The assignement of timer functionality is delegated to the core framework code and replaces the compile and runtime evalution in do_timer_interrupt_hook() Use the clockevents broadcast support and implement the lapic_broadcast function for ACPI. No changes to existing functionality. [ kdump fix from Vivek Goyal <vgoyal@in.ibm.com> ] [ fixes based on review feedback from Arjan van de Ven <arjan@infradead.org> ] Cleanups-from: Adrian Bunk <bunk@stusta.de> Build-fixes-from: Andrew Morton <akpm@osdl.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-16[PATCH] ACPI keep track of timer broadcastingThomas Gleixner
This is a preperatory patch for highres/dyntick: - replace the big #ifdef ARCH_APICTIMER_STOPS_ON_C3 hackery by functions - remove the double switch in the power verify function (in the worst case we switched ipi to apic and 20usec later apic to ipi) - keep track of the the state which stops local APIC timer Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Len Brown <len.brown@intel.com> Cc: <linux-acpi@vger.kernel.org> Cc: Andi Kleen <ak@suse.de> Cc: john stultz <johnstul@us.ibm.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-16[PATCH] ACPI: fix missing include for UPThomas Gleixner
apic.h does not get included on UP compiles. That way the APICTIMER_STOPS_ON_C3 is not there and UP boxen have no support for timer broadcasting. This was never noticed, because the lapic timer is only used for profiling on UP. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: john stultz <johnstul@us.ibm.com> Cc: Len Brown <len.brown@intel.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-16ACPI: fix fan after resume from S3Konstantin Karasyov
http://bugzilla.kernel.org/show_bug.cgi?id=7570 Signed-off-by: Konstantin Karasyov <konstantin.a.karasyov@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-16ACPI: update acpi_power_resume() per new acpi_op_resumeLen Brown
drivers/acpi/power.c:69: warning: initialization from incompatible pointer type Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-16ACPI: Thermal issues on HP nx6325Konstantin Karasyov
The previous reference counting scheme to enable power resources got confused when multiple devices were present that might repeatedly enable or disable the resource and throw off the count. The new code simply lists the referencing devices which are requesting the resource to be enabled. When there are none, then it is off. Signed-off-by: Konstantin Karasyov <konstantin.a.karasyov@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-16ACPI: thermal: fix units in debug outputSanjoy Mahajan
http://bugzilla.kernel.org/show_bug.cgi?id=4972 Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-15ACPI: include apic.h in processor driver for benefit of UP kernelsThomas Gleixner
apic.h does not get included on UP compiles. That way the APICTIMER_STOPS_ON_C3 is not there and UP boxen have no support for timer broadcasting. This was never noticed, because the lapic timer is only used for profiling on UP. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: john stultz <johnstul@us.ibm.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-15ACPI: remove non-PNPACPI version of get_rtc_dev()Len Brown
It isn't needed in ACPI code anymore because now ACPI always includes PNPACPI. Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-15ACPI: always enable CONFIG_PNPACPI on CONFIG_ACPI kernelsLen Brown
We removed the ACPI motherboard driver which handled the ACPI=y, PNP=n case, so now we need to enforce that PNP & PNPACPI are always enabled for ACPI kernels. Most major distros ship this way this already. Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-15ACPI: remove acpi_os_readable(), acpi_os_writable()Len Brown
...which are now unused Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-15ACPI: Fix sparse warningsRandy Dunlap
Use NULL for pointers drivers/acpi/osl.c:208:10: warning: Using plain integer as NULL pointer drivers/acpi/tables/tbxface.c:411:49: warning: Using plain integer as NULL pointer drivers/acpi/processor_core.c:1008:10: warning: Using plain integer as NULL pointer Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-15Execute AML Notify() requests on stack.Alexey Starikovskiy
HP nx6125/nx6325/... machines have a _GPE handler with an infinite loop sending Notify() events to different ACPI subsystems. The notify handler in the ACPI thermal driver is a C-routine, which may invoke the ACPI interpreter again to get access to some ACPI variables such as temperature. (acpi_evaluate_xxx) On these HP machines such an evaluation changes state of an ASL variable and lets the loop above break. In the current ACPI implementation, Notify requests are being deferred to the same kacpid workqueue on which the above GPE handler with infinite loop is executing. Thus we have a deadlock -- loop will continue to spin, sending notify events, and at the same time preventing these notify events from being run on a workqueue. All notify events are deferred, thus we see explosion in memory consumption. Also as GPE handling is blocked, machines overheat because ACPI-based fan control is stalled. Eventually by external poll of the same acpi_evaluate, kacpid is released and all the queued notify events are free to run, thus 100% CPU utilization by kacpid for several seconds or more. To prevent this failure, Linux must not send notify events to the kacpid workqueue -- either executing them immediately or putting them on some other thread. The first attempt to create a new thread was done by Peter Wainwright He created a bunch of threads, which were stealing work from a kacpid workqueue. This patch appeared in 2.6.15-based kernel shipped with Ubuntu 6.06 LTS. Second attempt was done by Alexey Starikovskiy, who created a new thread for each Notify event. This worked OK on HP nx machines, but broke Linus' Compaq n620c, by producing threads with a speed what they stopped the machine completely. Thus this patch was reverted from 2.6.18-rc2. Alexey re-made the patch to create second workqueue just for notify events, thus hopping it will not break Linus' machine. Patch was tested on the same HP nx machines in #5534 and #7122, but this broke Linus' machine also and was reverted from 2.6.19-rc with much fanfair. The 4th patch inserted schedule_timeout(1) into deferred execution of kacpid, if we had any notify requests pending, but Linus decided that it was too complex (involved either changes to workqueue to see if it's empty or atomic inc/dec). Then a 5th attempt did a yield() to every GPE execution. Finally, this 6th generation patch simply executes the notify handler on the stack. Previous attempts to do this simple solution failed because of issues in AML mutex re-entrancy which are now fixed by the previous patch in this series. http://bugzilla.kernel.org/show_bug.cgi?id=5534 Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-15ACPICA: fix AML mutex re-entrancyAlexey Starikovskiy
ACPI AML supports "serialized" methods which are protected by an implicit mutex. The mutex is re-entrant for that AML thread to allow recursion. However, Linux implements notify() by creating a new AML thread. So for systems where notify() re-enters a serialized method, deadlock results. The fix is to use the Linux thread_id as the key to allowing re-entrancy, not the AML thread pointer. http://bugzilla.kernel.org/show_bug.cgi?id=5534 Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-14Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6Linus Torvalds
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (94 commits) [PATCH] x86-64: Remove mk_pte_phys() [PATCH] i386: Fix broken CONFIG_COMPAT_VDSO on i386 [PATCH] i386: fix 32-bit ioctls on x64_32 [PATCH] x86: Unify pcspeaker platform device code between i386/x86-64 [PATCH] i386: Remove extern declaration from mm/discontig.c, put in header. [PATCH] i386: Rename cpu_gdt_descr and remove extern declaration from smpboot.c [PATCH] i386: Move mce_disabled to asm/mce.h [PATCH] i386: paravirt unhandled fallthrough [PATCH] x86_64: Wire up compat epoll_pwait [PATCH] x86: Don't require the vDSO for handling a.out signals [PATCH] i386: Fix Cyrix MediaGX detection [PATCH] i386: Fix warning in cpu initialization [PATCH] i386: Fix warning in microcode.c [PATCH] x86: Enable NMI watchdog for AMD Family 0x10 CPUs [PATCH] x86: Add new CPUID bits for AMD Family 10 CPUs in /proc/cpuinfo [PATCH] i386: Remove fastcall in paravirt.[ch] [PATCH] x86-64: Fix wrong gcc check in bitops.h [PATCH] x86-64: survive having no irq mapping for a vector [PATCH] i386: geode configuration fixes [PATCH] i386: add option to show more code in oops reports ...
2007-02-14[PATCH] remove many unneeded #includes of sched.hTim Schmielau
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>