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* [CPUFREQ] Longhaul - Disable arbiterRafa³ Bilski2006-08-11
| | | | | | | | | | | | | | | | | | ACPI C3 works for "Powersaver" processors, so use it only for them. Older CPU will change frequency on "halt" only. But we can protect transition in two ways: - by ACPI PM2 register, there is "bus master arbiter disable" bit. This isn't tested because VIA mainboards don't have PM2 register, - by PLE133 PCI/AGP arbiter disable register. There are two bits in this register. First is "PCI arbiter disable", second "AGP arbiter disable". This is working on VIA Epia 800 mainboards. Test on bm_control is more proper because this is true when PM2 register exist. Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Propagate acpi_processor_preregister_performance return value.bert hubert2006-07-31
| | | | | | | Note how any error from acpi_processor_preregister_performance is ignored. From: bert hubert <bert.hubert@netherlabs.nl> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Longhaul - Rename & fix multipliers tableRafa³ Bilski2006-07-31
| | | | | | | | | This table is only used by Ezra-T CPUs currently, and has values for some other CPU. Fix them to match the values used by that CPU, and for now make it clearer by renaming the variable. Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Longhaul - Fix power state test to do something more usefulRafa³ Bilski2006-07-31
| | | | | | | This is changing "always true" test to something usefull. Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Longhaul - Readd accidentally dropped lineRafa³ Bilski2006-07-31
| | | | | | | I lost very important line in do_powersaver Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Make longhaul_walk_callback() staticAdrian Bunk2006-07-31
| | | | | | | This patch makes the needlessly global longhaul_walk_callback() static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] X86_GX_SUSPMOD must depend on PCIAdrian Bunk2006-07-31
| | | | | | | | | | | | | | | | | | | | | | It seems commit 32ee8c3e470d86588b51dc42ed01e85c5fa0f180 accidentially reverted cdc9cc1d740ffc3d8d8207fbf5df9bf05fcc9955, IOW, it reintroduced the following compile error with CONFIG_PCI=n: <-- snip --> ... CC arch/i386/kernel/cpu/cpufreq/gx-suspmod.o arch/i386/kernel/cpu/cpufreq/gx-suspmod.c: In function ‘gx_detect_chipset’: arch/i386/kernel/cpu/cpufreq/gx-suspmod.c:193: error: implicit declaration of function ‘pci_match_id’ arch/i386/kernel/cpu/cpufreq/gx-suspmod.c:193: warning: comparison between pointer and integer make[3]: *** [arch/i386/kernel/cpu/cpufreq/gx-suspmod.o] Error 1 <-- snip --> This patch therefore re-adds the dependency of X86_GX_SUSPMOD on PCI. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Longhaul - Initialise later.Rafa³ Bilski2006-07-31
| | | | | | | | | | Without this longhaul will always fail when compiled into kernel, as it needs to initialise after the ACPI processor module. I lost this when I was splitting patches. Sorry. Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Longhaul - Workaround issues with APIC.Rafa³ Bilski2006-07-31
| | | | | | | | | | | | | | | | | | | There is no need to worry about local APIC. There is need to worry about I/O APIC, because I/O APIC is replacing good old 8259. According to Nehemiah datasheet VIA is using 3-wire bus to connect local APIC to I/O APIC. "[...] When IA32_APIC_BASE[11] is set to 0, processor APICs based on the 3-wire APIC bus cannot be generally re-enabled until a system hardware reset. The 3-wire bus looses track of arbitration that would be necessary for complete re-enabling. Certain (local) APIC functionality can be enabled. [...]" So we must set disable bit for each interrupt in I/O APIC registers. Same situation as for PIC - we must poke registers direcly. How to do this? I don't know. So at the moment it is better to fail. Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
* [CPUFREQ] Longhaul - Hook into ACPI C states.Rafa³ Bilski2006-07-31
| | | | | | | | | | | | Minimal change necessary for hardware support. Changes in longhaul.c: - most important - now C3 state is causing transition, - code responsible for clearing "bus master" bit removed, - protect bcr2 transition in the same way as longhaul. Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds2006-06-30
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: Remove obsolete #include <linux/config.h> remove obsolete swsusp_encrypt arch/arm26/Kconfig typos Documentation/IPMI typos Kconfig: Typos in net/sched/Kconfig v9fs: do not include linux/version.h Documentation/DocBook/mtdnand.tmpl: typo fixes typo fixes: specfic -> specific typo fixes in Documentation/networking/pktgen.txt typo fixes: occuring -> occurring typo fixes: infomation -> information typo fixes: disadvantadge -> disadvantage typo fixes: aquire -> acquire typo fixes: mecanism -> mechanism typo fixes: bandwith -> bandwidth fix a typo in the RTC_CLASS help text smb is no longer maintained Manually merged trivial conflict in arch/um/kernel/vmlinux.lds.S
| * Remove obsolete #include <linux/config.h>Jörn Engel2006-06-30
| | | | | | | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* | ACPI: HW P-state coordination supportVenkatesh Pallipadi2006-06-26
|/ | | | | | | | | | Treat HW coordination as independent CPUs. This enables per-cpu monintoring of P-states http://bugzilla.kernel.org/show_bug.cgi?id=5737 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* [PATCH] remove for_each_cpu()Andrew Morton2006-06-25
| | | | | | | | Convert a few stragglers over to for_each_possible_cpu(), remove for_each_cpu(). Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'release' of ↵Linus Torvalds2006-06-23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (65 commits) ACPI: suppress power button event on S3 resume ACPI: resolve merge conflict between sem2mutex and processor_perflib.c ACPI: use for_each_possible_cpu() instead of for_each_cpu() ACPI: delete newly added debugging macros in processor_perflib.c ACPI: UP build fix for bugzilla-5737 Enable P-state software coordination via _PDC P-state software coordination for speedstep-centrino P-state software coordination for acpi-cpufreq P-state software coordination for ACPI core ACPI: create acpi_thermal_resume() ACPI: create acpi_fan_suspend()/acpi_fan_resume() ACPI: pass pm_message_t from acpi_device_suspend() to root_suspend() ACPI: create acpi_device_suspend()/acpi_device_resume() ACPI: replace spin_lock_irq with mutex for ec poll mode ACPI: Allow a WAN module enable/disable on a Thinkpad X60. sem2mutex: acpi, acpi_link_lock ACPI: delete unused acpi_bus_drivers_lock sem2mutex: drivers/acpi/processor_perflib.c ACPI add ia64 exports to build acpi_memhotplug as a module ACPI: asus_acpi_init(): propagate correct return value ... Manual resolve of conflicts in: arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c include/acpi/processor.h
| * Pull bugzilla-5737 into release branchLen Brown2006-06-15
| |\ | | | | | | | | | | | | | | | Conflicts: arch/x86_64/kernel/acpi/processor.c
| | * ACPI: UP build fix for bugzilla-5737Andrew Morton2006-04-01
| | | | | | | | | | | | | | | | | | | | | | | | cpu_online_map doesn't exist if !CONFIG_SMP. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
| | * P-state software coordination for speedstep-centrinoVenkatesh Pallipadi2006-02-09
| | | | | | | | | | | | | | | | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=5737 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | * P-state software coordination for acpi-cpufreqVenkatesh Pallipadi2006-02-09
| | | | | | | | | | | | | | | | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=5737 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | | [CPUFREQ] Fix powernow-k8 SMP kernel on UP hardware bug.Randy Dunlap2006-06-21
| | | | | | | | | | | | | | | | | | | | | | | | Fix powernow-k8 doesn't load bug. Reference: https://launchpad.net/distros/ubuntu/+source/linux-source-2.6.15/+bug/35145 Signed-off-by: Ben Collins <bcollins@ubuntu.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [PATCH] redirect speedstep-centrino maintainer mail to cpufreq listJeremy Fitzhardinge2006-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I haven't really maintained this driver for a while, and I'm not keeping up with the latest in Intel power management. I get a steady stream of mail which I don't really do anything useful with; the cpufreq list seems like a better destination, unless someone wants to get the mail directly. Also clean up a couple of ancient comments which don't really apply anymore (as far as I know, nobody has ever damaged a CPU with this driver). Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] correct powernow-k8 fid/vid masks for extended partsLangsdorf, Mark2006-06-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | The fid/vid masks for parts using the extended parts are slightly incorrect and can result in incorrect fid/vid codes being applied. No instances of this problem have been reported in the field but it could be a problem with future parts. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] Clarify powernow-k8 cpu_family statementsLangsdorf, Mark2006-06-20
| | | | | | | | | | | | | | | | | | | | | | | | This patch clarifies the meaning of the cpu_family if statements in the hw pstate driver patch for powernow-k8 Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] sets nforce2 minimum PLL divider to 2.Dave Jones2006-06-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sets minimum PLL divider to 2. No negative impact when tested with two nForce2 based boards. Alexander Choporov reported (06/01/06) that xdiv = 1 does not work on his Abit NF7S2. Although there shouldn't be much cases that lead to xdiv = 1. (Updates also the (C) year) Signed-off-by: Sebastian Witt <se.witt@gmx.net> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] Make powernow-k7 work on SMP kernels.Dave Jones2006-06-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | Even though powernow-k7 doesn't work in SMP environments, it can work on an SMP configured kernel if there's only one CPU present, however recalibrate_cpu_khz was returning -EINVAL on such kernels, so we failed to init the cpufreq driver. Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] dprintk adjustments to cpufreq-speedstep-centrinoJan Beulich2006-06-04
| | | | | | | | | | | | | | | | | | | | | Remove KERN_* suffixes from some Centrino cpufreq driver's dprintk-s. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] dprintk adjustments to cpufreq-nforce2Jan Beulich2006-06-04
| | | | | | | | | | | | | | | | | | | | | Remove KERN_* suffixes from some NForce2 cpufreq driver's dprintk-s. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] Prepare powernow-k8 for future CPUs.Dave Jones2006-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | Forthcoming AMD products will use a different algorithm for transitioning pstates than the current generation Opteron products do. The attached patch allows the powernow-k8 driver to work with those products. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] Make acpi-cpufreq 'sticky'.Dave Jones2006-06-01
| | | | | | | | | | | | | | | | | | | | | This prevents annoying messages being printed when it gets loaded on a machine that doesn't have support scaling via ACPI. Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] Remove strange No-op from longrun.cDave Jones2006-05-31
| | | | | | | | | | | | | | | | | | | | | ORing something with zero is meaningless. ACKed-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] Remove duplicate assignment from cpufreq-nforce2Dave Jones2006-05-30
| | | | | | | | | | | | Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] Remove pointless reinitialisations in acpi-cpufreqDave Jones2006-05-30
| | | | | | | | | | | | Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] Remove pointless reinitialisation from powernow-k8Dave Jones2006-05-30
| | | | | | | | | | | | | | | | | | This var is already set at entry to the function. Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] Remove redundant initialisation from longhaul.Dave Jones2006-05-30
| | | | | | | | | | | | Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] Clean up longhaul's speed pretty-printerDave Jones2006-05-30
| | | | | | | | | | | | | | | | | | | | | | | | Getting ready to move to core cpufreq. - Use snprintf - Remove unnecessary nesting improving readability. Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] Disambiguate loop indexes in powernow-k7Dave Jones2006-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | This shouldn't have actually caused any problems (as we return if we 'corrupt' 'i', but it's still not very pretty. For the sake of adding another local variable, this got cleaner. Signed-off-by: Dave Jones <davej@redhat.com>
* | | [CPUFREQ] Typo in powernow-k8Dave Jones2006-05-30
|/ / | | | | | | | | | | (Also fix some horked indentation) Signed-off-by: Dave Jones <davej@redhat.com>
* | [CPUFREQ] powernow-k8.c: fix a check-after-useAdrian Bunk2006-04-18
| | | | | | | | | | | | | | | | This patch fixes a check-after-use introduced by commit 4211a30349e8d2b724cfb4ce2584604f5e59c299 and spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Dave Jones <davej@redhat.com>
* | [CPUFREQ] Remove duplicate check in powernow-k8Tobias Klauser2006-04-18
| | | | | | | | | | | | | | | | Remove a duplicate NULL pointer check introduced by commit 4211a30349e8d2b724cfb4ce2584604f5e59c299 Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch> Signed-off-by: Dave Jones <davej@redhat.com>
* | [PATCH] x86_64: Proper null pointer check in powernow_k8_getJacob Shin2006-04-09
| | | | | | | | | | | | | | | | | | | | | | This prevents crashes on dual core system when enough ticks are lost. Replaces earlier patch by me. Cc: Dave Jones <davej@redhat.com> Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] x86_64: Revert earlier powernow-k8 changeAndi Kleen2006-04-09
| | | | | | | | | | Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [CPUFREQ] powernow: remove private for_each_cpu_mask()Andrew Morton2006-03-27
| | | | | | | | | | | | | | It is unneeded and wrong. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dave Jones <davej@redhat.com>
* | [CPUFREQ] hotplug cpu fix for powernow-k8shin, jacob2006-03-27
| | | | | | | | | | | | | | | | Andi's previous fix to initialise powernow_data on all siblings will not work properly with CPU Hotplug. Signed-off-by: Jacob Shin <jacob.shin@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
* | [PATCH] sem2mutex: misc static one-file mutexesIngo Molnar2006-03-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: Paul Mackerras <paulus@samba.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jens Axboe <axboe@suse.de> Cc: Neil Brown <neilb@cse.unsw.edu.au> Acked-by: Alasdair G Kergon <agk@redhat.com> Cc: Greg KH <greg@kroah.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Adam Belay <ambx1@neo.rr.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] x86_64: Initialize powernow_data[] for all siblingsAndi Kleen2006-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | I got an oops on a dual core system because the lost tick handler called cpufreq_get() on core 1 and powernow tried to follow a NULL powernow_data[] pointer there. Initialize powernow_data for all cores of a CPU. Cc: Jacob Shin <jacob.shin@amd.com> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds2006-03-25
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] kzalloc conversion for gx-suspmod [CPUFREQ] Whitespace cleanup [CPUFREQ] Mark longhaul driver as broken. [PATCH] cpufreq: fix section mismatch warnings [CPUFREQ] Fix the p4-clockmod N60 errata workaround. [CPUFREQ] Fix handling for CPU hotplug [CPUFREQ] powernow-k8: Let cpufreq driver handle affected CPUs [CPUFREQ] Lots of whitespace & CodingStyle cleanup. [CPUFREQ] Remove duplicate cpuinfo struct [CPUFREQ] Silence powernow-k8 warning on k7's.
| * | [CPUFREQ] kzalloc conversion for gx-suspmodDave Jones2006-03-11
| | | | | | | | | | | | Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Whitespace cleanupDave Jones2006-03-11
| | | | | | | | | | | | Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Mark longhaul driver as broken.Dave Jones2006-03-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | This seems to work for a short period of time, but when used in conjunction with a userspace governor that changes the frequency regularly, it's only a matter of time before everything just locks up. Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Fix the p4-clockmod N60 errata workaround.Pallipadi, Venkatesh2006-03-10
| | | | | | | | | | | | | | | | | | | | | Fix the code to disable freqs less than 2GHz in N60 errata. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
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