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* Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds2007-02-166-286/+576
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Longhaul - Redo Longhaul ver. 2 [CPUFREQ] EPS - Correct 2nd brand test [CPUFREQ] Longhaul - Separate frequency and voltage transition [CPUFREQ] Longhaul - Models of Nehemiah [CPUFREQ] Whitespace fixup [CPUFREQ] Longhaul - Simplier minmult [CPUFREQ] CPU_FREQ_TABLE shouldn't be a def_tristate [CPUFREQ] ondemand governor use new cpufreq rwsem locking in work callback [CPUFREQ] ondemand governor restructure the work callback [CPUFREQ] Rewrite lock in cpufreq to eliminate cpufreq/hotplug related issues [CPUFREQ] Remove hotplug cpu crap [CPUFREQ] Enhanced PowerSaver driver [CPUFREQ] Longhaul - Add VT8235 support [CPUFREQ] Longhaul - Fix guess_fsb function [CPUFREQ] Longhaul - Remove duplicate tables [CPUFREQ] Longhaul - Introduce Nehemiah C [CPUFREQ] fix cpuinfo_cur_freq for CPU_HW_PSTATE [CPUFREQ] Longhaul - Remove "ignore_latency" option
| * [CPUFREQ] Longhaul - Redo Longhaul ver. 2Rafa³ Bilski2007-02-141-22/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Start using v2 version of Longhaul when available. It provides voltage scaling and can use ACPI C3 state. That's curious. CPU will not change frequency on ACPI C3 when v1 is in use, but it will when v2 is used. Driver will return max frequency all the time if this isn't true for all processors. There is strange thing with mobile voltage. Looks like only Nehemiah (C3-M) supports it. Earlier processors have different mobile VRM (in docs), but I can't find any which is using it. Looks like all are using VRM 8.5. So fail for non Nehemiah with mobile VRM. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
| * [CPUFREQ] EPS - Correct 2nd brand testRafa³ Bilski2007-02-131-1/+1
| | | | | | | | | | | | | | Solution for small, but nasty bug: access beyond end of f_table for C7 brand. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
| * [CPUFREQ] Fix up merge conflicts with recent ACPI changes.Dave Jones2007-02-1014-328/+274
| |\ | | | | | | | | | Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Longhaul - Separate frequency and voltage transitionRafa³ Bilski2007-02-101-16/+93
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change should make Longhaul more compatible with both ver. 2 and Powersaver processors. Voltage transitions will be done before or after frequency transition. That depends on direction of change. I don't know how to force conservative governor when voltage scaling is enabled, so there is only a warning for user. Minimal voltage is calculated in different way now because in this way more power is saved at lower multipliers. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Longhaul - Models of NehemiahRafa³ Bilski2007-02-101-3/+3
| | | | | | | | | | | | | | | | | | | | | Borowed from VIA driver. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Longhaul - Simplier minmultRafa³ Bilski2007-02-101-15/+8
| | | | | | | | | | | | | | | | | | | | | Simple cleanup in code which is setting minmult. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Enhanced PowerSaver driverRafa³ Bilski2007-02-103-0/+344
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is driver for Enhanced Powersaver which is present in VIA C7 processors. Beta tested by Jorgen (jorgen (at) greven dot dk). Thanks! Based on documentation provided by Dave Jones (Thanks!) and C7 Eden datasheet available from www.via.com.tw. Looks like all these C7 Eden CPU's don't have P-states in BIOS. I know that 2 p-states is low, but Jorgen finds it usefull anyway because board is passive cooled. There are 3 different types of C7 processors (called brands): 0. C7-M - these processors can set any maultiplier between min and max, any voltage between min and max. 1. C7 - only min and max states are supported. Voltage is different for min and max states. 2. Eden - only min and max states are supported. Looks like this brand can only change multiplier. Voltage seems to be the same for min and max frequency. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Longhaul - Add VT8235 supportRafa³ Bilski2007-02-041-12/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I don't know why it is working and how, but it is working. On my Epia transition time is by default set to 100us. I'm changing it to 200us. After that I can change frequency from min (x4.0) to max (x7.5) without lockup. Many times. There is a paranoid check at a beginning of a patch. Probably dead code, but I don't have better ideas for CL10000 case at the moment. Only way to to detect broken chip seems to be looking in log for spurious interrupts. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Longhaul - Fix guess_fsb functionRafa³ Bilski2007-02-041-22/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is bug reported by John-Marc Chandonia: > Detected 1002.292 MHz processor. > longhaul: VIA C3 'Nehemiah B' [C5N] CPU detected. Powersaver supported. > longhaul: Using throttling support. > longhaul: Invalid (reserved) FSB! FSB is correcly guessed for 999.554 MHz CPU. To fix this error: - ROUNDING should be range, not mask - at it's current value it is +7 -8, - more precise calculations inside guess_fsb - 7.5x133MHz is 1000MHz now. Signed-off-by: Rafal Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Longhaul - Remove duplicate tablesRafa³ Bilski2007-02-032-154/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | Now there is no need to depend on -1 in Nehemiah tables. After previous change code is eliminating multipliers lower then 5.0 by minmult for Nehemiah A and B. Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Longhaul - Introduce Nehemiah CRafa³ Bilski2007-02-031-45/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Looks like some time ago I introduced a bug to Longhaul. I had report that 9x133Mhz CPU is seen as 5x133MHz. So I changed multipliers table. That was a mistake. According to documentation table was correct. So only way to avoid 5 or 9 dilema is not use MaxMHzBR for PowerSaver 1.0. One code that works on all processors. To do it I need also separate flag for Nehemiah C (min = x4.0) and Nehemiah (min = x5.0). Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] fix cpuinfo_cur_freq for CPU_HW_PSTATEJoachim Deguara2007-02-031-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the cpuinfo_cur_freq value by using the correct find_khz_freq_from_fiddid() when the CPU uses hardware p-states. Signed-off-by: Joachim Deguara <joachim.deguara@amd.com> Acked-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Longhaul - Remove "ignore_latency" optionRafa³ Bilski2007-02-031-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to have this option in Longhaul anymore. It was for laptop with CLE266 chipset in times, when only ACPI C3 was used to switch frequency. Now we have native support not only for CLE266, but CN400 too. Would be good to have support for PN266, but I can't find datasheet for it. Looks like BIOS for CPU's faster then 1GHz don't support ACPI C2 nor C3. Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [PATCH] genirq: remove IRQ_DISABLEDIngo Molnar2007-02-161-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that disable_irq() defaults to delayed-disable semantics, the IRQ_DISABLED flag is not needed anymore. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] genirq: do not mask interrupts by defaultIngo Molnar2007-02-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Never mask interrupts immediately upon request. Disabling interrupts in high-performance codepaths is rare, and on the other hand this change could recover lost edges (or even other types of lost interrupts) by conservatively only masking interrupts after they happen. (NOTE: with this change the highlevel irq-disable code still soft-disables this IRQ line - and if such an interrupt happens then the IRQ flow handler keeps the IRQ masked.) Mark i8529A controllers as 'never loses an edge'. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] time: x86_64: hpet_address cleanupjohn stultz2007-02-161-16/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation for supporting generic timekeeping, this patch cleans up x86-64's use of vxtime.hpet_address, changing it to just hpet_address as is also used in i386. This is necessary since the vxtime structure will be going away. Signed-off-by: John Stultz <johnstul@us.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andi Kleen <ak@muc.de> 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>
* | | [PATCH] i386: enable dynticks in kconfigIngo Molnar2007-02-161-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable dynamic ticks selection. Signed-off-by: Ingo Molnar <mingo@elte.hu> 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>
* | | [PATCH] i386 prepare nmi watchdog for dynticksThomas Gleixner2007-02-161-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The NMI watchdog implementation assumes that the local APIC timer interrupt is happening. This assumption is not longer true when high resolution timers and dynamic ticks come into play, as they may switch off the local APIC timer completely. Take the PIT/HPET interrupts into account too, to avoid false positives. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <ak@suse.de> Cc: Zachary Amsden <zach@vmware.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Rohit Seth <rohitseth@google.com> 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>
* | | [PATCH] i386 prepare for dyntickIngo Molnar2007-02-161-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prepare i386 for dyntick: idle handler callbacks. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 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>
* | | [PATCH] i386 rework local apic timer calibrationThomas Gleixner2007-02-161-150/+215
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The local apic timer calibration has two problem cases: 1. The calibration is based on readout of the PIT/HPET timer to detect the wrap of the periodic tick. It happens that a box gets stuck in the calibration loop due to a PIT with a broken readout function. 2. CoreDuo boxen show a sporadic PIT runs too slow defect, which results in a wrong lapic calibration. The PIT goes back to normal operation once the lapic timer is switched to periodic mode. Both are existing and unfixed problems in the current upstream kernel and prevent certain laptops and other systems from booting Linux. Rework the code to address both problems: - Make the calibration interrupt driven. This removes the wait_timer_tick magic hackery from lapic.c and time_hpet.c. The clockevents framework allows easy substitution of the global tick event handler for the calibration. This is more accurate than monitoring jiffies. At this point of the boot process, nothing disturbes the interrupt delivery, so the results are very accurate. - Verify the calibration against the PM timer, when available by using the early access function. When the measured calibration period is outside of an one percent window, then the lapic timer calibration is adjusted to the pm timer result. - Verify the calibration by running the lapic timer with the calibration handler. Disable lapic timer in case of deviation. This also removes the "synchronization" of the local apic timer to the global tick. This synchronization never worked, as there is no way to synchronize PIT(HPET) and local APIC timer. The synchronization by waiting for the tick just alignes the local APIC timer for the first events, but later the events drift away due to the different clocks. Removing the "sync" is just randomizing the asynchronous behaviour at setup time. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Zachary Amsden <zach@vmware.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Rohit Seth <rohitseth@google.com> 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>
* | | [PATCH] clockevents: i386 driversThomas Gleixner2007-02-1610-746/+732
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | | [PATCH] i386, apic: clean up the APIC codeThomas Gleixner2007-02-164-766/+815
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The apic code is quite unstructured and missing a lot of comments. - Restructure the code into helper functions, timer, setup/shutdown, interrupt and power management blocks. - Fixup comments. - Namespace fixups - Inline helpers for version and is_integrated - Combine the ack_bad_irq functions No functional changes. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Zachary Amsden <zach@vmware.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Rohit Seth <rohitseth@google.com> 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>
* | | [PATCH] Allow early access to the power management timerThomas Gleixner2007-02-161-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow early access to the power management timer by exposing the verified read function and providing a helper function which checks the pmtmr_ioport variable and returns either the pm timer readout or 0 in case the pm timer is not available. Create a new header file and replace also the ifdef'ed extern definition in arch/i386/kernel/acpi/boot.c This is a preperatory patch for the rework of the local apic timer calibration. No functional changes. 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>
* | | [PATCH] Mark TSC on GeodeLX reliableMarcelo Tosatti2007-02-161-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Geode can safely use the TSC for highres, since: 1) Does not support frequency scaling, 2) The TSC _does_ count when the CPU is halted. Furthermore, the Geode supports a mode called "suspension on halt", where Suspend mode (which interacts with the power management states) is entered. TSC counting during suspend mode is controlled by bit 8 of the Bus Controller Configuration Register #0 (thanks Tom!). 3) no SMP :) Check if "RTSC counts during suspension" and remove the requirement for verification, so the clocksource code can safely select it as an timesource for the highres timers subsystem. Signed-off-by: Marcelo Tosatti <marcelo@kvack.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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] clocksource: Add verification (watchdog) helperThomas Gleixner2007-02-162-49/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The TSC needs to be verified against another clocksource. Instead of using hardwired assumptions of available hardware, provide a generic verification mechanism. The verification uses the best available clocksource and handles the usability for high resolution timers / dynticks of the clocksource which needs to be verified. 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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] clocksource: Remove the update callbackThomas Gleixner2007-02-161-33/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The clocksource code allows direct updates of the rating of a given clocksource now. Change TSC unstable tracking to use this interface and remove the update callback. 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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] clocksource: replace is_continuous by a flag fieldThomas Gleixner2007-02-163-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using a flag filed allows to encode more than one information into a variable. Preparatory patch for the generic clocksource verification. [mingo@elte.hu: convert vmitime.c to the new clocksource flag] 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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] x86: rewrite SMP TSC sync codeIngo Molnar2007-02-164-168/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | make the TSC synchronization code more robust, and unify it between x86_64 and i386. The biggest change is the removal of the 'fix up TSCs' code on x86_64 and i386, in some rare cases it was /causing/ time-warps on SMP systems. The new code only checks for TSC asynchronity - and if it can prove a time-warp (if it can observe the TSC going backwards when going from one CPU to another within a critical section), then the TSC clock-source is turned off. The TSC synchronization-checking code also got moved into a separate file. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.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>
* | | [PATCH] Simplify the registration of clocksourcesThomas Gleixner2007-02-161-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enqueue clocksources in rating order to make selection of the clocksource easier. Also check the match with an user override at enqueue time. Preparatory patch for the generic clocksource verification. 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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] i386 Remove useless code in tsc.cThomas Gleixner2007-02-161-38/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The delayed work code in arch/i386/kernel/tsc.c is an unused leftover of the GTOD conversion. Remove it. 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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] i386: use GTOD persistent clock supportJohn Stultz2007-02-162-97/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Persistent clock support: do proper timekeeping across suspend/resume, i386 arch support. [bunk@stusta.de: cleanup] Build-fixes-from: Andrew Morton <akpm@osdl.org> Signed-off-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] Add irq flag to disable balancing for an interruptThomas Gleixner2007-02-161-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a flag so we can prevent the irq balancing of an interrupt. Move the bits, so we have room for more :) Necessary for the ability to setup clocksources more flexible (e.g. use the different HPET channels per CPU) 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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] vmi-versus-hrtimersAndrew Morton2007-02-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/i386/kernel/built-in.o: In function `vmi_stop_hz_timer': : undefined reference to `next_timer_interrupt' If CONFIG_NO_HZ, next_timer_interrupt() doesn't exist (and presumably doesn't make sense). Perhaps VMI shouildn't be playing with timer internals at this level. Cc: Zachary Amsden <zach@vmware.com> Cc: Andi Kleen <ak@suse.de> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] i386: Fix broken CONFIG_COMPAT_VDSO on i386Jan Beulich2007-02-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After updating several machines to 2.6.20, I can't boot anymore the single one of them that supports the NX bit and is configured as a 32-bit system. My understanding is that the VDSO changes in 2.6.20-rc7 were not fully cooked, in that with that config option enabled VDSO_SYM(x) now equals x, meaning that an address in the fixmap area is now being passed to apps via AT_SYSINFO. However, the page is mapped with PAGE_READONLY rather than PAGE_READONLY_EXEC. I'm not certain whether having app code go through the fixmap area is intended, but in case it is here is the simple patch that makes things work again. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de>
* | | [PATCH] i386: fix 32-bit ioctls on x64_32Giuliano Procida2007-02-131-0/+30
| | | | | | | | | | | | | | | | | | | | | [MTRR] fix 32-bit ioctls on x64_32 Signed-off-by: Giuliano Procida <giuliano.procida@googlemail.com> Signed-off-by: Andi Kleen <ak@suse.de>
* | | [PATCH] x86: Unify pcspeaker platform device code between i386/x86-64Andi Kleen2007-02-133-26/+21
| | | | | | | | | | | | | | | | | | | | | | | | Trivial cleanup. Only change is that it is always compiled in now on x86-64 like on i386. Signed-off-by: Andi Kleen <ak@suse.de>
* | | [PATCH] i386: Remove extern declaration from mm/discontig.c, put in header.Rusty Russell2007-02-131-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | Extern declarations belong in headers. Times, they are a'changin. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de> ===================================================================
* | | [PATCH] i386: Rename cpu_gdt_descr and remove extern declaration from smpboot.cRusty Russell2007-02-132-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When I implemented the DECLARE_PER_CPU(var) macros, I was careful that people couldn't use "var" in a non-percpu context, by prepending percpu__. I never considered that this would allow them to overload the same name for a per-cpu and a non-percpu variable. It is only one of many horrors in the i386 boot code, but let's rename the non-perpcu cpu_gdt_descr to early_gdt_descr (not boot_gdt_descr, that's something else...) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de> ===================================================================
* | | [PATCH] i386: Move mce_disabled to asm/mce.hRusty Russell2007-02-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Allows external actors to disable mce. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de> ===================================================================
* | | [PATCH] i386: paravirt unhandled fallthroughRusty Russell2007-02-133-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current code simply calls "start_kernel" directly if we're under a hypervisor and no paravirt_ops backend wants us, because paravirt.c registers that as a backend. This was always a vain hope; start_kernel won't get far without setup. It's also impossible for paravirt_ops backends which don't sit in the arch/i386/kernel directory: they can't link before paravirt.o anyway. Keep it simple: if we pass all the registered paravirt probes, BUG(). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de>
* | | [PATCH] x86: Don't require the vDSO for handling a.out signalsAndi Kleen2007-02-131-1/+5
| | | | | | | | | | | | | | | | | | and in other strange binfmts. vDSO is not necessarily mapped there. Signed-off-by: Andi Kleen <ak@suse.de>
* | | [PATCH] i386: Fix Cyrix MediaGX detectionAlan2007-02-131-9/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The old Cyrix 5520 CPU detection code relied upon the PCI layer setup being done earlier than the CPU setup, which is no longer true. Fortunately we know that if the processor is a MediaGX we can do type 1 pci config accesses to check the companion chip. We thus do those directly and from this find the 5520 and implement the workarounds for the timer problem Original report from takada@mbf.nifty.com, I sent a proposed patch which Takara then corrected, tested and sent back to the list on 10th January. Submitting for merging as it seems to have been missed AK: Changed to use pci-direct.h and fix warning for !CONFIG_PCI (later AK: originally from akpm) Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Cc: <takada@mbf.nifty.com> Cc: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* | | [PATCH] i386: Fix warning in cpu initializationAndi Kleen2007-02-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Fix bogus warning linux/arch/i386/kernel/cpu/transmeta.c:12: warning: ‘cpu_freq’ may be used uninitialized in this function Signed-off-by: Andi Kleen <ak@suse.de>
* | | [PATCH] i386: Fix warning in microcode.cAndi Kleen2007-02-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Fix bogus gcc warning linux/arch/i386/kernel/microcode.c:387: warning: ‘new_mc’ may be used uninitialized in this function Signed-off-by: Andi Kleen <ak@suse.de>
* | | [PATCH] x86: Enable NMI watchdog for AMD Family 0x10 CPUsAndi Kleen2007-02-131-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | For i386/x86-64. Straight forward -- just reuse the Family 0xf code. Signed-off-by: Andi Kleen <ak@suse.de>
* | | [PATCH] x86: Add new CPUID bits for AMD Family 10 CPUs in /proc/cpuinfoAndi Kleen2007-02-131-5/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just various new acronyms. The new popcnt bit is in the middle of Intel space. This looks a little weird, but I've been assured it's ok. Also I fixed RDTSCP for i386 which was at the wrong place. For i386 and x86-64. Signed-off-by: Andi Kleen <ak@suse.de>
* | | [PATCH] i386: Remove fastcall in paravirt.[ch]Andi Kleen2007-02-131-51/+51
| | | | | | | | | | | | | | | | | | Not needed because fastcall is always default now Signed-off-by: Andi Kleen <ak@suse.de>
* | | [PATCH] i386: geode configuration fixesTAKADA Yoshihito2007-02-131-11/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Original code doesn't write back to CCR4 register. This patch reflects a value of a register. Cc: Jordan Crouse <jordan.crouse@amd.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andi Kleen <ak@suse.de>
* | | [PATCH] i386: add option to show more code in oops reportsChuck Ebbert2007-02-131-4/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes developers need to see more object code in an oops report, e.g. when kernel may be corrupted at runtime. Add the "code_bytes" option for this. Signed-off-by: Chuck Ebbert <cebbert@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-26 10:43:11 +0000