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* [CPUFREQ] Fix git URL.Dave Jones2006-12-12
| | | | Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Fix the bug in duplicate freq elimination code in acpi-cpufreqVenkatesh Pallipadi2006-12-12
| | | | | | | | | | | | | Fix the bug in duplicate states elimination in acpi-cpufreq. Bug: Due to duplicate state elimiation in the loop earlier, the number of valid_states can be less than perf->state_count, in which case freq_table was ending up with some garbage/uninitialized entries in the table. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> From: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] speedstep-centrino should ignore upper performance control bitsGary Hade2006-12-12
| | | | | | | | | | | | | | On some systems there could be bits set in the upper half of the control value provided by the _PSS object. These bits are only relevant for cpufreq drivers that use IO ports which are not currently supported by the speedstep-centrino driver. The current MSR oriented code assumes that upper bits are not set and thus fails to work correctly when they are. e.g. the control and status value equality check failed on the IBM x3650 even though the ACPI spec allows inequality. Signed-off-by: Gary Hade <garyhade@us.ibm.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Optimize gx-suspmod revision ID fetchingJean Delvare2006-12-12
| | | | | | | We don't need a temporary variable to get the PCI revision ID. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Dave Jones <davej@redhat.com>
* Revert "[CPUFREQ] speedstep-centrino should ignore upper performance control ↵Dave Jones2006-11-08
| | | | | | bits" This reverts commit d7a1944e8da5e91859b98259189aaaa4d8b7fa07.
* [CPUFREQ] gx-suspmod: fix "&& 0xff" typoAlexey Dobriyan2006-11-08
| | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Fix build failure on x86-64akpm@osdl.org2006-11-08
| | | | | | | arch/x86_64/kernel/cpufreq/../../../i386/kernel/cpu/cpufreq/speedstep-lib.c:131: error: 'MSR_FSB_FREQ' undeclared (first use in this function) Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] speedstep-centrino should ignore upper performance control bitsGary Hade2006-11-08
| | | | | | | | | | | | | | On some systems such as the IBM x3650 there are bits set in the upper half of the control values provided by the _PSS object. These bits are only relevant for cpufreq drivers that use IO ports which are not currently supported by the speedstep-centrino driver. The current MSR oriented code assumes that upper bits are not set and thus fails to work correctly when they are. e.g. the control and status value equality check fails even though the ACPI spec allows the inequality. Signed-off-by: Gary Hade <garyh@us.ibm.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] p4-clockmod: add more CPUsDominik Brodowski2006-11-06
| | | | | | | | | Several more Intel CPUs are now capable using the p4-clockmod cpufreq driver. As it is of limited use most of the time, print a big bold warning if a better cpufreq driver might be available. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Fix coding style issues in cpufreq.Gautham R Shenoy2006-11-06
| | | | | | | | Clean up cpufreq subsystem to fix coding style issues and to improve the readability. Signed-off-by: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] ifdef more unused on !SMP code.Dave Jones2006-10-21
| | | | | | | | acpi-cpufreq needs the same patch as the previous speedstep-centrino change. Additionally, the centrino driver can have its ifdef moved out a little further to eliminate some more code/variables. Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] speedstep-centrino: remove dead codeAndrew Morton2006-10-21
| | | | | | | arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c:396: warning: 'sw_any_bug_dmi_table' defined but not used Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] handle sysfs errorsJeff Garzik2006-10-21
| | | | | | Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] acpi-cpufreq: Fix up some CodingStyle nits leftover from the ↵Dave Jones2006-10-18
| | | | | | lindenting. Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Remove duplicate include from acpi-cpufreqDave Jones2006-10-18
| | | | Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Fix speedstep-smi CPU detection to not run on Pentium 4.Hiroshi Miura2006-10-18
| | | | | | | | If someone inserts speedstep-smi on a mobile P4, it prevents other cpufreq modules from loading until it is unloaded. Signed-off-by: Hiroshi Miura <miura@da-cha.org> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] sc520_freq.c: ioremap balanced with iounmapAmol Lad2006-10-18
| | | | | | | | | | | | | ioremap must be balanced by an iounmap and failing to do so can result in a memory leak. Tested (compilation only): - using allmodconfig - making sure the files are compiling without any warning/error due to new changes Signed-off-by: Amol Lad <amol@verismonetworks.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ][8/8] acpi-cpufreq: Add support for freq feedback from hardwareVenkatesh Pallipadi2006-10-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable ondemand governor and acpi-cpufreq to use IA32_APERF and IA32_MPERF MSR to get active frequency feedback for the last sampling interval. This will make ondemand take right frequency decisions when hardware coordination of frequency is going on. Without APERF/MPERF, ondemand can take wrong decision at times due to underlying hardware coordination or TM2. Example: * CPU 0 and CPU 1 are hardware cooridnated. * CPU 1 running at highest frequency. * CPU 0 was running at highest freq. Now ondemand reduces it to some intermediate frequency based on utilization. * Due to underlying hardware coordination with other CPU 1, CPU 0 continues to run at highest frequency (as long as other CPU is at highest). * When ondemand samples CPU 0 again next time, without actual frequency feedback from APERF/MPERF, it will think that previous frequency change was successful and can go to wrong target frequency. This is because it thinks that utilization it has got this sampling interval is when running at intermediate frequency, rather than actual highest frequency. More information about IA32_APERF IA32_MPERF MSR: Refer to IA-32 Intel® Architecture Software Developer's Manual at http://developer.intel.com Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ][7/8] acpi-cpufreq: Fix get of current frequency breakageVenkatesh Pallipadi2006-10-15
| | | | | | | | | Recent speedstep-centrino unification onto acpi-cpufreq patchset broke cpuinfo_cur_freq interface in /sys/../cpuinfo/, when MSR was used for transitions. Attached patch fixes that breakage. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ][6/8] acpi-cpufreq: Eliminate get of current freq on notificationVenkatesh Pallipadi2006-10-15
| | | | | | | | | | | Only change the frequency if the state previously set is different from what we are trying to set. We don't really have to get the current frequency at this point. Signed-off-by: Denis Sadykov <denis.m.sadykov@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ][5/8] acpi-cpufreq: lindent acpi-cpufreq.cVenkatesh Pallipadi2006-10-15
| | | | | | | | | | Lindent acpi-cpufreq. Additional changes replacing "return (..)" by "return ..". No functionality changes in this patch. Signed-off-by: Denis Sadykov <denis.m.sadykov@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ][4/8] acpi-cpufreq: Mark speedstep-centrino ACPI as deprecatedVenkatesh Pallipadi2006-10-15
| | | | | | | | | | | | | | Mark ACPI hooks in speedstep-centrino as deprecated. Change the order in which speedstep-centrino and acpi-cpufreq (when both are in kernel) will be added. First driver to be tried is now acpi-cpufreq, followed by speedstep-centrino. Add a note in feature-removal-schedule to mark this deprecation. Signed-off-by: Denis Sadykov <denis.m.sadykov@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ][3/8] acpi-cpufreq: Pull in MSR based transition supportVenkatesh Pallipadi2006-10-15
| | | | | | | | | | | | | | Add in the support for Intel Enhanced Speedstep - MSR based transitions. With this change, the ACPI based support in speedstep-centrino can be deprecated and duplicate code in that driver can be marked for removal. Much easier to maintain and support this way. This also reduces the user misconfigurations and questions on which driver is to be used under which CPUs to support Enhanced Speedstep. Signed-off-by: Denis Sadykov <denis.m.sadykov@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ][2/8] acpi: reorganize code to make MSR support addition easierVenkatesh Pallipadi2006-10-15
| | | | | | | | | | | | | | Some clean up and redsign of the driver. Mainly making it easier to add support for multiple sub-mechanisms of changing frequency. Currently this driver supports only ACPI SYSTEM_IO address space. With the changes below it is easier to add support for other address spaces like Intel Enhanced Speedstep which uses MSR (ACPI FIXED_FEATURE_HARDWARE) to do the transitions. Signed-off-by: Denis Sadykov <denis.m.sadykov@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ][1/8] acpi-cpufreq: software coordination and handle all CPUs in ↵Venkatesh Pallipadi2006-10-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the group This patchset has refresh/rebase of a bunch of patches/bugfixes related to acpi-cpufreq that were sent earlier on this list. patch 1/8 Patch that fixes a bug in swcoordination code in acpi-cpufreq patch 2/8 through patch 7/8 Grand unification of ACPI based speedstep-centrino and acpi-cpufreq drivers. ACPI allows P-state transitions in multiple ways. Like using IO ports or using processor native method (MSR). Without this patch, IO port based P-state transitions are handled in acpi-cpufreq driver and MSR based transitions on Intel CPUs are handled in speedstep-centrino driver. Even though most of the code in these two drivers should be similar, except for final changing/checking of frequency (one driver does it using IO port and other does it through MSR), we have duplicated code in these two drivers. There are also issues around BIOSes supporting both MSR and IO port and which driver should be loaded first in standard installations. The patchset combines functionality of these two driver into acpi-cpufreq driver. ACPI based functionality in speedstep-centrino is marked deprecated and will be removed in future. speedstep-centrino will continue to work on systems that depend on older non-ACPI table based P-state chanes. * 2/8 - Patch that reorganizes the code in acpi-cpufreq, cleaning it up a little and making it easier to add MSR support later. * 3/8 - Pull in the MSR based transition support into acpi-cpufreq. * 4/8 - Mark speedstep-centrino deprecated. Change the order in Makefile to load acpi-cpufreq first and speedstep-centrino later, in cases where both are configured in. * 5/8 - lindent acpi-cpufreq.c * 6/8 - Minor change to eliminate the check of current frequency on notifications. We can use last set frequency instead. * 7/8 - Make cpufreq->get of acpi_cpufreq work correctly again. There will be a patch in future that removes ACPI based support in speedstep-centrino in coming months. patch 8/8 Add support for IA32_APERF and IA32_MPERF MSR and get the actual frequency from these MSRs and use it to determine the next frequency target in ondemand governor This patch: There is a bug in software coordination patch in acpi-cpufreq, due to which frequency will only be set on first CPU of any coordinated group. Bug identified by Denis, was not recognised earlier as there are no platforms yet that use software coordination with acpi-cpufreq driver. Signed-off-by: Denis Sadykov <denis.m.sadykov@intel.com> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Documentation fixDominik Brodowski2006-10-15
| | | | | | | Fix reference to where the code actually is. Noted by Hero Wanders. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Dave Jones <davej@redhat.com>
* [PATCH] make UML compile (FC6/x86-64)Ulrich Drepper2006-10-15
| | | | | | | | | | | | I need this patch to get a UML kernel to compile. This is with the kernel headers in FC6 which are automatically generated from the kernel tree. Some headers are missing but those files don't need them. At least it appears so since the resuling kernel works fine. Tested on x86-64. Signed-off-by: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Fix VM_MAYEXEC calculationLinus Torvalds2006-10-15
| | | | | | | | .. and clean up the file mapping code while at it. No point in having a "if (file)" repeated twice, and generally doing similar checks in two different sections of the same code Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix core files so they make sense to gdb...Petr Vandrovec2006-10-15
| | | | | | | | | | | | It is silly to use non-static variable for writting zeroes to the file. And more seriously, foffset in core dump file dump function was incremented too much, so some parts of core dump were shifted by size of few phdrs and notes down, so although gdb was able to load that file, it did not make lot of sense - in my test case data pages were shifted down by about 900 bytes. Signed-off-by: Petr Vandrovec <petr@vandrovec.name> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'release' of ↵Linus Torvalds2006-10-15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (28 commits) ACPI: check battery status on resume for un/plug events during sleep ACPICA: Fix incorrect handling of PCI Express Root Bridge _HID ACPI: asus_acpi: don't printk on writing garbage to proc files ACPI: asus_acpi: fix proc files parsing ACPI: SCI interrupt source override ACPI: fix printk format warnings ACPI: fix section for CPU init functions ACPI: update comments in motherboard.c ACPI: acpi_pci_link_set() can allocate with either GFP_ATOMIC or GFP_KERNEL ACPI: fix potential OOPS in power driver with CONFIG_ACPI_DEBUG ACPI: ibm_acpi: delete obsolete documentation ACPI: created a dedicated workqueue for notify() execution ACPI: Remove deferred execution from global lock acquire wakeup path MSI S270 Laptop support: backlight, wlan, bluetooth states ACPI: EC: export ec_transaction() for msi-laptop driver ACPI: EC: Simplify acpi_hw_low_level*() with inb()/outb(). ACPI: EC: Unify poll and interrupt gpe handlers ACPI: EC: Unify poll and interrupt mode transaction functions ACPI: EC: Remove unused variables and duplicated code ACPI: EC: Remove unnecessary delay added by previous transation patch. ...
| * Pull trivial into test branchLen Brown2006-10-14
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| | * ACPI: fix printk format warningsRandy Dunlap2006-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix printk format warnings in drivers/acpi: drivers/acpi/tables/tbget.c:326: warning: format '%X' expects type 'unsigned int', but argument 5 has type 'long unsigned int' drivers/acpi/tables/tbrsdt.c:189: warning: format '%X' expects type 'unsigned int', but argument 5 has type 'long unsigned int' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
| | * ACPI: fix section for CPU init functionsPierre Ossman2006-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | The ACPI processor init functions should be marked as __cpuinit as they use structures marked with __cpuinitdata. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
| | * ACPI: update comments in motherboard.cLen Brown2006-10-14
| | | | | | | | | | | | Signed-off-by: Len Brown <len.brown@intel.com>
| | * ACPI: acpi_pci_link_set() can allocate with either GFP_ATOMIC or GFP_KERNELJiri Kosina2006-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | acpi_pci_link_set() allocates both with interrupts on and with interrupts off (resume-time), so check interrupts and decide on GFP_ATOMIC or GFP_KERNEL at run-time. Signed-off-by: Jiri Kosina <jikos@jikos.cz> Signed-off-by: Len Brown <len.brown@intel.com>
| | * ACPI: fix potential OOPS in power driver with CONFIG_ACPI_DEBUGDmitry Torokhov2006-10-14
| | | | | | | | | | | | | | | | | | | | | device was set to null and used before set in a debug printk Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Len Brown <len.brown@intel.com>
| * | Pull sci into test branchLen Brown2006-10-14
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| | * | ACPI: SCI interrupt source overrideKimball Murray2006-10-14
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Linux group at Stratus Technologies has come across an issue with SCI routing under ACPI. We were bitten by this when we made an x86_64 platform whose BIOS provides an Interrupt Source Override for the SCI itself. Apparently the override has no effect for the System Control Interrupt, and this appears to be because of the way the SCI is setup in the ACPI code. It does not handle the case where busirq != gsi. The code that sets up the SCI routing assumes that bus irq == global irq. So there is simply no provision for telling it otherwise. The attached patch provides this mechanism. This patch provided by David Bulkow, was tested on an i386 platform, which does not use the SCI override, and also on an x86_64 platform which does use an override. Signed-off-by: David Bulkow <david.bulkow@stratus.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
| * | Pull bugzilla-5534 into test branchLen Brown2006-10-14
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| | * | ACPI: created a dedicated workqueue for notify() executionAlexey Y. Starikovskiy2006-10-14
| | | | | | | | | | | | | | | | | | | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=5534#c160 Signed-off-by: Len Brown <len.brown@intel.com>
| | * | ACPI: Remove deferred execution from global lock acquire wakeup pathAlexey Y. Starikovskiy2006-10-14
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | On acquiring the ACPI global lock, if there were sleepers on the lock, we used to use acpi_os_execute() to defer a thread which would signal sleepers. Now just signal the semaphore directly. http://bugzilla.kernel.org/show_bug.cgi?id=5534#c159 Signed-off-by: Len Brown <len.brown@intel.com>
| * | Pull msi-laptop into test branchLen Brown2006-10-14
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| | * | MSI S270 Laptop support: backlight, wlan, bluetooth statesLennart Poettering2006-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create a driver to support the platform-specific features of MSI S270 laptops (and maybe other MSI laptops). This driver implements a backlight device for controlling LCD brightness (/sys/class/backlight/msi-laptop-bl/). In addition it allows access to the WLAN and Bluetooth states through a platform driver (/sys/devices/platform/msi-laptop-pf/). Signed-off-by: Lennart Poettering <mzxreary@0pointer.de> Cc: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
| * | | Pull ec into test branchLen Brown2006-10-14
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| | * | ACPI: EC: export ec_transaction() for msi-laptop driverLennart Poettering2006-10-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Lennart Poettering <mzxreary@0pointer.de> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | ACPI: EC: Simplify acpi_hw_low_level*() with inb()/outb().Denis M. Sadykov2006-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify acpi_hw_low_level_xxx() functions to inb() and outb(). Signed-off-by: Alexey Y. Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | ACPI: EC: Unify poll and interrupt gpe handlersDenis M. Sadykov2006-10-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Alexey Y. Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | ACPI: EC: Unify poll and interrupt mode transaction functionsDenis M. Sadykov2006-10-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Alexey Y. Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | ACPI: EC: Remove unused variables and duplicated codeDenis M. Sadykov2006-10-14
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Alexey Y. Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * | ACPI: EC: Remove unnecessary delay added by previous transation patch.Denis M. Sadykov2006-10-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unnecessary delay (50 ms) while reading data from EC in interrupt mode. Signed-off-by: Alexey Y. Starikovskiy <alexey.y.starikovskiy@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
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