- 01 5月, 2014 1 次提交
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由 Viresh Kumar 提交于
There has been confusion all the time about which mailing list to follow for cpufreq activities, linux-pm@vger.kernel.org or cpufreq@vger.kernel.org. Since patches sent to cpufreq@vger.kernel.org don't go to Patchwork which is a maintenance workflow problem, make linux-pm@vger.kernel.org the official mailing list for cpufreq stuff and remove all references of cpufreq@vger.kernel.org from kernel source. Later, we can request that the list be dropped entirely. Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org> [rjw: Changelog] Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 06 1月, 2014 1 次提交
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由 Ramkumar Ramachandra 提交于
Add a Documentation/ABI entry for /sys/devices/system/cpu/intel_pstate/max_perf_pct, /sys/devices/system/cpu/intel_pstate/min_perf_pct, and /sys/devices/system/cpu/intel_pstate/no_turbo. Cc: Dirk Brandewie <dirk.brandewie@gmail.com> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: NRamkumar Ramachandra <artagnon@gmail.com> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 28 6月, 2013 1 次提交
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由 Lan Tianyu 提交于
Commits fcf80582 (cpufreq: Simplify cpufreq_add_dev()) and aa77a527 (cpufreq: acpi-cpufreq: Don't set policy->related_cpus from .init()) changed the contents of the "related_cpus" sysfs attribute on systems where acpi-cpufreq is used and user space can't get the list of CPUs which are in the same hardware coordination CPU domain (provided by the ACPI AML method _PSD) via "related_cpus" any more. To make up for that loss add a new sysfs attribute "freqdomian_cpus" for the acpi-cpufreq driver which exposes the list of CPUs in the same domain regardless of whether it is coordinated by hardware or software. [rjw: Changelog, documentation] References: https://bugzilla.kernel.org/show_bug.cgi?id=58761Reported-by: NJean-Philippe Halimi <jean-philippe.halimi@exascale-computing.eu> Signed-off-by: NLan Tianyu <tianyu.lan@intel.com> Acked-by: NViresh Kumar <viresh.kumar@linaro.org> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 30 3月, 2013 1 次提交
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由 Zhang Yanfei 提交于
Add an Documentation/ABI entry for /sys/devices/system/cpu/cpu0/crash_notes and /sys/devices/system/cpu/cpu0/crash_notes_size. Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: NZhang Yanfei <zhangyanfei@cn.fujitsu.com> Acked-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 03 1月, 2013 1 次提交
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由 Kusanagi Kouichi 提交于
This reverts commit cba5dd7f. Commit cba5dd7f duplicates /sys/devices/system/cpu/cpu#/node entry. Commit 657348a0 has already added it. Signed-off-by: NKusanagi Kouichi <slash@ac.auone-net.jp> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 10 9月, 2012 1 次提交
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由 Andre Przywara 提交于
One feature present in powernow-k8 that isn't present in acpi-cpufreq is support for enabling or disabling AMD's core performance boost technology. This patch adds support to acpi-cpufreq, but also includes support for Intel's dynamic acceleration. The original boost disabling sysfs file was per CPU, but acted globally. Also the naming (cpb) was at least not intuitive. So lets introduce a single file simply called "boost", which sits once in /sys/devices/system/cpu/cpufreq. This should be the only way of using this feature, so add documentation about the rationale and the usage. A following patch will re-introduce the cpb knob for compatibility reasons on AMD CPUs. Per-CPU boost switching is possible, but not trivial and is thus postponed to a later patch series. Signed-off-by: NAndre Przywara <andre.przywara@amd.com> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 17 5月, 2012 1 次提交
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由 Peter Zijlstra 提交于
It's been broken forever (i.e. it's not scheduling in a power aware fashion), as reported by Suresh and others sending patches, and nobody cares enough to fix it properly ... so remove it to make space free for something better. There's various problems with the code as it stands today, first and foremost the user interface which is bound to topology levels and has multiple values per level. This results in a state explosion which the administrator or distro needs to master and almost nobody does. Furthermore large configuration state spaces aren't good, it means the thing doesn't just work right because it's either under so many impossibe to meet constraints, or even if there's an achievable state workloads have to be aware of it precisely and can never meet it for dynamic workloads. So pushing this kind of decision to user-space was a bad idea even with a single knob - it's exponentially worse with knobs on every node of the topology. There is a proposal to replace the user interface with a single 3 state knob: sched_balance_policy := { performance, power, auto } where 'auto' would be the preferred default which looks at things like Battery/AC mode and possible cpufreq state or whatever the hw exposes to show us power use expectations - but there's been no progress on it in the past many months. Aside from that, the actual implementation of the various knobs is known to be broken. There have been sporadic attempts at fixing things but these always stop short of reaching a mergable state. Therefore this wholesale removal with the hopes of spurring people who care to come forward once again and work on a coherent replacement. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/1326104915.2442.53.camel@twinsSigned-off-by: NIngo Molnar <mingo@kernel.org>
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- 17 5月, 2011 1 次提交
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由 Borislav Petkov 提交于
Change contact person to AMD kernel mailing list, update text and external references, drop "Users:" tag. Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: NBorislav Petkov <borislav.petkov@amd.com> Link: http://lkml.kernel.org/r/1305553188-21061-4-git-send-email-bp@amd64.orgAcked-by: NGreg Kroah-Hartman <gregkh@suse.de> Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>
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- 04 8月, 2010 1 次提交
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由 Justin P. Mattock 提交于
Below you will find an updated version from the original series bunching all patches into one big patch updating broken web addresses that are located in Documentation/* Some of the addresses date as far far back as 1995 etc... so searching became a bit difficult, the best way to deal with these is to use web.archive.org to locate these addresses that are outdated. Now there are also some addresses pointing to .spec files some are located, but some(after searching on the companies site)where still no where to be found. In this case I just changed the address to the company site this way the users can contact the company and they can locate them for the users. Signed-off-by: NJustin P. Mattock <justinmattock@gmail.com> Signed-off-by: NThomas Weber <weber@corscience.de> Signed-off-by: NMike Frysinger <vapier.adi@gmail.com> Cc: Paulo Marques <pmarques@grupopie.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Michael Neuling <mikey@neuling.org> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 16 12月, 2009 1 次提交
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由 Alex Chiang 提交于
Describe NUMA node symlink created for CPUs when CONFIG_NUMA is set. Signed-off-by: NAlex Chiang <achiang@hp.com> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Gary Hade <garyhade@us.ibm.com> Cc: Badari Pulavarty <pbadari@us.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Rientjes <rientjes@google.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 09 12月, 2009 1 次提交
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由 Nathan Fontenot 提交于
Version 3 of this patch is updated with documentation added to Documentation/ABI. There are no changes to any of the C code from v2 of the patch. In order to support kernel DLPAR of CPU resources we need to provide an interface to add (probe) and remove (release) the resource from the system. This patch Creates new generic probe and release sysfs files to facilitate cpu probe/release. The probe/release interface provides for allowing each arch to supply their own routines for implementing the backend of adding and removing cpus to/from the system. This also creates the powerpc specific stubs to handle the arch callouts from writes to the sysfs files. The creation and use of these files is regulated by the CONFIG_ARCH_CPU_PROBE_RELEASE option so that only architectures that need the capability will have the files created. Signed-off-by: NNathan Fontenot <nfont@austin.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 25 11月, 2009 1 次提交
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由 Alex Chiang 提交于
This is a complex interface and is already described in Documentation/cpu-freq/, especially in the user-guide.txt file. No need to copy/paste all that information. Let's just alert the reader to the presence of the user-guide. Signed-off-by: NAlex Chiang <achiang@hp.com> Signed-off-by: NDave Jones <davej@redhat.com>
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- 31 10月, 2009 7 次提交
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由 Alex Chiang 提交于
Describe NUMA node symlink created for CPUs when CONFIG_NUMA is set. Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NAlex Chiang <achiang@hp.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alex Chiang 提交于
Document cpuidle sysfs attributes by reading code, Documentation/cpuidle/, and git logs. Cc: Venki Pallipadi <venkatesh.pallipadi@intel.com> Cc: Len Brown <lenb@kernel.org> Signed-off-by: NAlex Chiang <achiang@hp.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alex Chiang 提交于
Document sched_[mc|smt]_power_savings by reading existing code and git logs. Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: NAlex Chiang <achiang@hp.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alex Chiang 提交于
Add brief descriptions for the following sysfs files: /sys/devices/system/cpu/cpu#/topology/core_id /sys/devices/system/cpu/cpu#/topology/core_siblings /sys/devices/system/cpu/cpu#/topology/core_siblings_list /sys/devices/system/cpu/cpu#/topology/physical_package_id /sys/devices/system/cpu/cpu#/topology/thread_siblings /sys/devices/system/cpu/cpu#/topology/thread_siblings_list The descriptions in Documentation/cputopology.txt weren't very informative, so I attempted a better description based on code reading and hopeful guessing. Updated Documentation/cputopology.txt with the better descriptions and fixed some style issues. Cc: Mike Travis <travis@sgi.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAlex Chiang <achiang@hp.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alex Chiang 提交于
Add brief descriptions for the following sysfs files: /sys/devices/system/cpu/kernel_max /sys/devices/system/cpu/offline /sys/devices/system/cpu/online /sys/devices/system/cpu/possible /sys/devices/system/cpu/present Excerpted the relevant information from Documentation/cputopology.txt and pointed back to cputopology.txt as the authoritative source of information. Cc: Mike Travis <travis@sgi.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAlex Chiang <achiang@hp.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alex Chiang 提交于
This interface has been around for a long time, but hasn't been officially documented. Document the top level sysfs directory for CPU attributes. Signed-off-by: NAlex Chiang <achiang@hp.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Alex Chiang 提交于
Rename sysfs-devices-cache_disable to sysfs-devices-system-cpu, in order to keep a stricter correlation between a sysfs directory and its documentation. Reported-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NAlex Chiang <achiang@hp.com> Acked-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 10 4月, 2009 1 次提交
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由 Mark Langsdorf 提交于
Signed-off-by: NMark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: NAndreas Herrmann <andreas.herrmann3@amd.com> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <20090409133153.GL31527@alberich.amd.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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