kernel.git/drivers/acpi/processor_idle.c, branch linux-2.6.21.y

[PATCH] i386: add command line option "local_apic_timer_c2_ok"

2007-03-23T17:21:02Z

It turned out that it is almost impossible to trust ACPI, BIOS & Co. regarding the C states. This was the reason to switch the local apic timer off in C2 state already. OTOH there are sane and well behaving systems, which get punished by that decision. Allow the user to confirm that the local apic timer is trustworthy in C2 state. This keeps the default behaviour on the safe side. Signed-off-by: Thomas Gleixner Acked-by: Ingo Molnar Signed-off-by: Linus Torvalds

Revert "ACPI: Only use IPI on known broken machines (AMD, Dothan/BaniasPentium M)"

2007-03-23T15:03:47Z

This reverts commit 25496caec111481161e7f06bbfa12a533c43cc6f, which broke bootup on at least Ingo's ThinkPad T60. Need to figure out exactly what is wrong before we can re-do the logic. Requested-by: Ingo Molnar Acked-by: Thomas Gleixner Cc: Thomas Renninger Cc: Len Brown Signed-off-by: Linus Torvalds

ACPI: Only use IPI on known broken machines (AMD, Dothan/BaniasPentium M)

2007-03-17T04:50:46Z

Use IPI for blacklisted CPUs, add parameter IPI vs LAPIC Currently, Linux disables lapic timer for all machines with C2 and higher C-state support. According to Intel only specific Intel models (Banias/Dothan) are broken in respect of not waking up from C2 with lapic. However, I am not sure about the naming of the parameter and how it could/should get integrated into the dyntick part (CONFIG_GENERIC_CLOCKEVENTS). There, a more fine grained check (TSC still running?, ..) is needed? Does this make sense (always use CLOCK_EVT_NOTIFY_BROADCAST_ON, but use OFF if forced by use_ipi=0: clockevents_notify(use_ipi ? CLOCK_EVT_NOTIFY_BROADCAST_ON : CLOCK_EVT_NOTIFY_BROADCAST_OFF, &pr->id); Signed-off-by: Thomas Renninger Signed-off-by: Len Brown

Pull fluff into release branch

2007-02-17T03:10:32Z

Conflicts: arch/x86_64/pci/mmconfig.c drivers/acpi/bay.c Signed-off-by: Len Brown

Pull misc-for-upstream into release branch

2007-02-16T23:52:41Z

Conflicts: drivers/usb/misc/appledisplay.c Signed-off-by: Len Brown

[PATCH] clockevents: i386 drivers

2007-02-16T16:13:59Z

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 ] [ fixes based on review feedback from Arjan van de Ven ] Cleanups-from: Adrian Bunk Build-fixes-from: Andrew Morton Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar Cc: john stultz Cc: Roman Zippel Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] ACPI keep track of timer broadcasting

2007-02-16T16:13:58Z

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 Signed-off-by: Ingo Molnar Cc: Len Brown Cc: Cc: Andi Kleen Cc: john stultz Cc: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] ACPI: fix missing include for UP

2007-02-16T16:13:58Z

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 Signed-off-by: Ingo Molnar Cc: Roman Zippel Cc: john stultz Cc: Len Brown Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

ACPI: include apic.h in processor driver for benefit of UP kernels

2007-02-16T04:27:13Z

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 Signed-off-by: Ingo Molnar Cc: Roman Zippel Cc: john stultz Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Len Brown

ACPI: delete extra #defines in /drivers/acpi/ drivers

2007-02-13T04:50:52Z

Cosmetic only. Except in a single case, #define ACPI_*_DRIVER_NAME were invoked 0 or 1 times. Signed-off-by: Len Brown