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* i386/x8664: cleanup the shared hpet codeChris Wright2007-10-121-5/+1
| | | | | | | | | | | Remove hpet_readl/writel from vsyscall.h, where it does not belong anyway. Use the hpet code itself. Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86_64: cleanup apic.c after clock events switchChris Wright2007-10-121-8/+14
| | | | | | | | | | Make variables static. Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86_64: remove now unused codeThomas Gleixner2007-10-127-595/+5
| | | | | | | | | | Remove the unused code after the switch to clock events. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86: unify timex.h variantsThomas Gleixner2007-10-122-2/+2
| | | | | | | | | | Combine the timex.h variants and move the TSC related code into tsc.h. Move the set_cyc2ns_scale() call into the tsc calibraction code, where it belongs. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86: kill 8253pit.hThomas Gleixner2007-10-121-1/+0
| | | | | | | | | | Useless header file with 32 bit and 64 bit variants. Move the single useful line to the place where it is used. 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>
* x86: disable apic timer for AMD C1E enabled CPUsThomas Gleixner2007-10-122-1/+35
| | | | | | | | | | | AMDs C1E enabled CPUs stop the local apic timer, when both cores are idle. This is a hardware feature which breaks highres/dynticks. Add the same quirk as we have for 32 bit already. 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>
* x86: Fix irq0 / local apic timer accountingThomas Gleixner2007-10-122-1/+3
| | | | | | | | | | | | | | | | | | | | | | 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>
* x86_64: convert to clock eventsThomas Gleixner2007-10-125-186/+65
| | | | | | | | | | | Finally switch to the clockevents code. Share code with i386 for hpet and PIT. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86_64: Add (not yet used) clock event functionsThomas Gleixner2007-10-121-0/+79
| | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86_64: prepare idle loop for dynamic ticksChris Wright2007-10-121-0/+4
| | | | | | | | | | | 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: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86_64: remove nested irq disablesThomas Gleixner2007-10-121-6/+6
| | | | | | | | | | | | 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: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86_64: apic change setup_APIC_timer calling conventionThomas Gleixner2007-10-121-4/+4
| | | | | | | | | | | setup_APIC_timer takes the file global calibration result as an argument. Remove it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86_64: Remove APIC_DIVISORThomas Gleixner2007-10-121-5/+3
| | | | | | | | | | | | | 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: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86_64: Move apic calibration code aroundThomas Gleixner2007-10-121-9/+6
| | | | | | | | | | | | | 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: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86_64: remove pit synchronizationThomas Gleixner2007-10-121-18/+0
| | | | | | | | | | | | | | | | 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: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86_64: prepare apic code for clock eventsThomas Gleixner2007-10-121-8/+15
| | | | | | | | | | | Change __setup_APIC_LVTT so it takes the arguments which are necessary for the later clock events switch. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86: remove never used apic_mappedYinghai Lu2007-10-121-3/+2
| | | | | | | | | | | | | | [ 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: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* i386: prepare sharing the PIT codeThomas Gleixner2007-10-121-4/+0
| | | | | | | | | | | | | | | 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: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* i386: prepare sharing the PIT codeThomas Gleixner2007-10-121-1/+3
| | | | | | | | | | | | | | 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: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* i386: prepare sharing the hpet code with x86_64Thomas Gleixner2007-10-121-1/+58
| | | | | | | | | | | | | | | | 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: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* i386: prepare sharing the hpet code with x86_64Thomas Gleixner2007-10-121-8/+16
| | | | | | | | | | | | | | | 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: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86_64: Consolidate tsc calibrationThomas Gleixner2007-10-123-80/+92
| | | | | | | | | | | 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: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86: Geode MFGPT clock event device supportAndres Salomon2007-10-121-0/+165
| | | | | | | | | | | | | | | 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: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: Geode Multi-Function General Purpose Timers supportAndres Salomon2007-10-123-1/+202
| | | | | | | | | | | | | | | | | | | 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: 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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* x86: block irq balancing for timerVenki Pallipadi2007-10-121-1/+1
| | | | | | | | | | | | | | 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: Andi Kleen <ak@suse.de> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* x86: Fix irq0 / local apic timer accountingThomas Gleixner2007-10-122-1/+5
| | | | | | | | | | | | | | | | | | | | | | 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>
* Merge branch 'master' of ↵Linus Torvalds2007-10-122-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (867 commits) [SKY2]: status polling loop (post merge) [NET]: Fix NAPI completion handling in some drivers. [TCP]: Limit processing lost_retrans loop to work-to-do cases [TCP]: Fix lost_retrans loop vs fastpath problems [TCP]: No need to re-count fackets_out/sacked_out at RTO [TCP]: Extract tcp_match_queue_to_sack from sacktag code [TCP]: Kill almost unused variable pcount from sacktag [TCP]: Fix mark_head_lost to ignore R-bit when trying to mark L [TCP]: Add bytes_acked (ABC) clearing to FRTO too [IPv6]: Update setsockopt(IPV6_MULTICAST_IF) to support RFC 3493, try2 [NETFILTER]: x_tables: add missing ip6t_modulename aliases [NETFILTER]: nf_conntrack_tcp: fix connection reopening [QETH]: fix qeth_main.c [NETLINK]: fib_frontend build fixes [IPv6]: Export userland ND options through netlink (RDNSS support) [9P]: build fix with !CONFIG_SYSCTL [NET]: Fix dev_put() and dev_hold() comments [NET]: make netlink user -> kernel interface synchronious [NET]: unify netlink kernel socket recognition [NET]: cleanup 3rd argument in netlink_sendskb ... Fix up conflicts manually in Documentation/feature-removal-schedule.txt and my new least favourite crap, the "mod_devicetable" support in the files include/linux/mod_devicetable.h and scripts/mod/file2alias.c. (The latter files seem to be explicitly _designed_ to get conflicts when different subsystems work with them - that have an absolutely horrid lack of subsystem separation!) Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'dmi-const' of ↵Linus Torvalds2007-10-129-24/+24
| | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6 * 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6: drivers/firmware: const-ify DMI API and internals
* i386/x86_64: move headers to include/asm-x86Thomas Gleixner2007-10-114-5/+5
| | | | | | | | Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: sanitize pathes arch/x86/kernel/cpu/MakefileThomas Gleixner2007-10-111-3/+3
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: sanitize pathes arch/x86/kernel/Makefile_64Thomas Gleixner2007-10-111-7/+7
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: sanitize pathes arch/x86/kernel/Makefile_32Thomas Gleixner2007-10-111-2/+2
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86_64: move kernelThomas Gleixner2007-10-1168-7/+25438
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86_64: move ia32Thomas Gleixner2007-10-1118-0/+4540
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86_64: move mmThomas Gleixner2007-10-1111-1/+3315
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86_64: move bootThomas Gleixner2007-10-116-1/+767
| | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86_64: move pciThomas Gleixner2007-10-114-1/+258
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86_64: move vdsoThomas Gleixner2007-10-1112-0/+483
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86_64: move libThomas Gleixner2007-10-1122-1/+2381
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86_64: move kernel/cpufreqThomas Gleixner2007-10-111-0/+108
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86_64: move kernel/acpiThomas Gleixner2007-10-114-1/+584
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86_64: move cryptoThomas Gleixner2007-10-116-1/+960
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* i386: move kernelThomas Gleixner2007-10-1180-2/+31661
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* i386: move kernel/cpuThomas Gleixner2007-10-1115-0/+4540
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* i386: move videoThomas Gleixner2007-10-112-0/+33
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* i386: move oprofileThomas Gleixner2007-10-1111-0/+1924
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* i386: move mach-voyagerThomas Gleixner2007-10-116-0/+3730
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* i386: move xenThomas Gleixner2007-10-1117-0/+4198
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* i386: move mach-es7000Thomas Gleixner2007-10-114-1/+448
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* i386: move mach-defaultThomas Gleixner2007-10-112-0/+185
| | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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