- 12 Oct, 2007 40 commits
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Thomas Gleixner authored
The clock events merge introduced a change to the nmi watchdog code to handle the not longer increasing local apic timer count in the broadcast mode. This is fine for UP, but on SMP it pampers over a stuck CPU which is not handling the broadcast interrupt due to the unconditional sum up of local apic timer count and irq0 count. To cover all cases we need to keep track on which CPU irq0 is handled. In theory this is CPU#0 due to the explicit disabling of irq balancing for irq0, but there are systems which ignore this on the hardware level. The per cpu irq0 accounting allows us to remove the irq0 to CPU0 binding as well. Add a per cpu counter for irq0 and evaluate this instead of the global irq0 count in the nmi watchdog code. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
Arjan van de Ven <arjan@linux.intel.com>
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Thomas Gleixner authored
Finally switch to the clockevents code. Share code with i386 for hpet and PIT. Signed-off-by:
Chris Wright <chrisw@sous-sol.org> Signed-off-by:
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Thomas Gleixner authored
Signed-off-by:
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Chris Wright authored
Add tick_nohz_{stop,restart}_sched_tick to idle loop in prepartion for turning on dynticks. These are just noops until NO_HZ is enabled. Signed-off-by: -
Thomas Gleixner authored
setup_APIC_timer disables interrupts anyway. So no need to do the same in setup_boot_APIC_clock and setup_secondary_APIC_clock. Disable interrupts explicit in the calibration code. Signed-off-by:
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Thomas Gleixner authored
setup_APIC_timer takes the file global calibration result as an argument. Remove it. Signed-off-by:
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Thomas Gleixner authored
APIC_DIVISOR is rather useless. It makes the calibration result more accurate in the first place, but we discard this later when we write the value to the APIC timer by dividing the calibration value by APIC_DIVISOR. Signed-off-by:
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Thomas Gleixner authored
Let the calibration code fill in calibration_result directly and move the variable on top of the file. Fixup a printk w/o log level while at it. Signed-off-by:
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Thomas Gleixner authored
The APIC timer setup code synchronizes the local APIC timer to the PIT/HPET. This is pointless as the PIT and the local APIC timer frequency are not correlated and the APIC timer calibration can never be accurate enough to avoid that the local APIC timer and the PIT/HPET drift apart. Simply remove it. Signed-off-by:
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Thomas Gleixner authored
Change __setup_APIC_LVTT so it takes the arguments which are necessary for the later clock events switch. Signed-off-by:
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Yinghai Lu authored
[ tglx: arch/x86 adaptation ] Signed-off-by:
Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by:
Andi Kleen <ak@suse.de> Cc: Christoph Lameter <clameter@sgi.com> Cc: Len Brown <lenb@kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Thomas Gleixner authored
PIT clock events work already and the PIT handling is the same for i386 and x86_64. x86_64 does not support PIT as a clock source, so disable the PIT clocksource for x86_64. Use the i386 i8253.h include file for x86_64 as well to share the exports and the PIT constants. Signed-off-by:
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Thomas Gleixner authored
PIT clock events work already and the PIT handling is the same for i386 and x86_64. x86_64 does not support PIT as a clock source, so disable the PIT clocksource for x86_64. Prepare i8253.h to be shared with x8664 Signed-off-by:
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Thomas Gleixner authored
Add the x8664 specific bits (mapping) to share the hpet code later. Move the reserve_platform_timer call to late init. This is necessary for x86_64, as hpet enable() is called before memory is setup. i386 calls it in late_time_init, but it does not hurt to do it later for both. Pull in the x8664 hpet disable command line option as well. Signed-off-by:
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Thomas Gleixner authored
The hpet implementations of i386 and x8664 has been mostly the same before the clock events conversion of i386. The clock events conversion of i386 hpet is already done. So it makes sense to share the code for the x86_64 clock events conversion. Abstract out the mapping functions. Signed-off-by:
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Thomas Gleixner authored
Move the TSC calibration code to tsc.c. Reimplement it so the pm timer can be used as a reference as well. Signed-off-by:
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Thomas Gleixner authored
TSC must be verified by a continous and reliable clocksource to allow high resolution timers and or dynamic ticks. Signed-off-by:
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Andres Salomon authored
Add support for an MFGPT clock event device; this allows us to use MFGPTs as the basis for high-resolution timers. Signed-off-by:
Jordan Crouse <jordan.crouse@amd.com> Signed-off-by:
Andres Salomon <dilinger@debian.org> Cc: Andi Kleen <ak@suse.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by:
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Andres Salomon authored
This adds support for Multi-Function General Purpose Timers. It detects the available timers during southbridge init, and provides an API for allocating and setting the timers. They're higher resolution than the standard PIT, so the MFGPTs come in handy for quite a few things. Note that we never clobber the timers that the BIOS might have opted to use; we just check for unused timers. Signed-off-by:
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Venki Pallipadi authored
Disable irq balancing on IRQ0. Several SIS chipsets lock up when you try to change affinity of IRQ #0. Signed-off-by:
Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by:
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Thomas Gleixner authored
The clock events merge introduced a change to the nmi watchdog code to handle the not longer increasing local apic timer count in the broadcast mode. This is fine for UP, but on SMP it pampers over a stuck CPU which is not handling the broadcast interrupt due to the unconditional sum up of local apic timer count and irq0 count. To cover all cases we need to keep track on which CPU irq0 is handled. In theory this is CPU#0 due to the explicit disabling of irq balancing for irq0, but there are systems which ignore this on the hardware level. The per cpu irq0 accounting allows us to remove the irq0 to CPU0 binding as well. Add a per cpu counter for irq0 and evaluate this instead of the global irq0 count in the nmi watchdog code. Signed-off-by:
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Thomas Gleixner authored
The next_event member of the clock event device is used to keep track of the next periodic event. For one shot only devices it is wrong to clear the variable, as the next event will be based on it. Pointed out by Ralf Baechle Signed-off-by:
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Thomas Gleixner authored
Migration aid to allow preparatory patches which introduce not yet used parts of clock events code. Signed-off-by:
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Thomas Gleixner authored
Signed-off-by:
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [ZLIB]: Fix external builds of zlib_inflate code. [TG3]: Fix APE induced regression [SKY2]: version 1.19 [SKY2]: use netdevice stats struct [SKY2]: fiber advertise bits initialization (trivial) [SKY2]: fix power settings on Yukon XL [SKY2]: ethtool register reserved area blackout
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Al Viro authored
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David S. Miller authored
Move zlib_inflate_blob() out into it's own source file, infutil.c, so that things like the powerpc zImage builder in arch/powerpc/boot/Makefile don't end up trying to compile it. Signed-off-by:David S. Miller <davem@davemloft.net>
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Matt Carlson authored
This patch fixes a bug caused by the recent APE support added for 5761 devices. Signed-off-by:
Matt Carlson <mcarlson@broadcom.com> Signed-off-by:
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Stephen Hemminger authored
Update version to keep track of new changes. Signed-off-by:
Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by:
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Stephen Hemminger authored
Use builtin statistics structure from net device. Signed-off-by:
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Stephen Hemminger authored
Put initialization in sequential order (same as other constants). Signed-off-by:
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Stephen Hemminger authored
Make sure PCI register for PHY power gets set correctly. Signed-off-by:
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Stephen Hemminger authored
Make sure and not dump reserved areas of device space. Touching some of these causes machine check exceptions on boards like D-Link DGE-550SX. Coding note, used a complex switch statement rather than bitmap because it is easier to relate the block values to the documentation rather than looking at a encoded bitmask. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds authored
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (408 commits) [POWERPC] Add memchr() to the bootwrapper [POWERPC] Implement logging of unhandled signals [POWERPC] Add legacy serial support for OPB with flattened device tree [POWERPC] Use 1TB segments [POWERPC] XilinxFB: Allow fixed framebuffer base address [POWERPC] XilinxFB: Add support for custom screen resolution [POWERPC] XilinxFB: Use pdata to pass around framebuffer parameters [POWERPC] PCI: Add 64-bit physical address support to setup_indirect_pci [POWERPC] 4xx: Kilauea defconfig file [POWERPC] 4xx: Kilauea DTS [POWERPC] 4xx: Add AMCC Kilauea eval board support to platforms/40x [POWERPC] 4xx: Add AMCC 405EX support to cputable.c [POWERPC] Adjust TASK_SIZE on ppc32 systems to 3GB that are capable [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers [POWERPC] 85xx: Enable FP emulation in MPC8560 ADS defconfig [POWERPC] 85xx: Killed <asm/mpc85xx.h> [POWERPC] 85xx: Add cpm nodes for 8541/8555 CDS [POWERPC] 85xx: Convert mpc8560ads to the new CPM binding. [POWERPC] mpc8272ads: Remove muram from the CPM reg property. [POWERPC] Make clockevents work on PPC601 processors ... Fixed up conflict in Documentation/powerpc/booting-without-of.txt manually.
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Linus Torvalds authored
* 'upstream-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] sata_mv: more S/G fixes
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Jeff Garzik authored
* corruption fix: we only want the lower 16 bits of length (0 == 64kb) * ditto: the upper layer sets max-phys-segments to LIBATA_MAX_PRD, so we must reset it to own hw-specific length. * delete unused mv_fill_sg() return value Signed-off-by:Jeff Garzik <jgarzik@redhat.com>
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Jeff Garzik authored
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David Gibson authored
This adds a memchr() implementation to the bootwrapper, which will be needed when libfdt is merged in. Signed-off-by:
David Gibson <david@gibson.dropbear.id.au> Signed-off-by:
Paul Mackerras <paulus@samba.org>
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Olof Johansson authored
Implement show_unhandled_signals sysctl + support to print when a process is killed due to unhandled signals just as i386 and x86_64 does. Default to having it off, unlike x86 that defaults on. Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
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