)]}'
{
  "log": [
    {
      "commit": "c10997f6575f476ff38442fa18fd4a0d80345f9d",
      "tree": "9b2bb7e647bd39fb80f23d7a6b34bf2587d660a7",
      "parents": [
        "38a382ae5dd4f4d04e3046816b0a41836094e538"
      ],
      "author": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Thu Dec 20 08:13:05 2007 -0800"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Thu Jan 24 20:40:40 2008 -0800"
      },
      "message": "Kobject: convert drivers/* from kobject_unregister() to kobject_put()\n\nThere is no need for kobject_unregister() anymore, thanks to Kay\u0027s\nkobject cleanup changes, so replace all instances of it with\nkobject_put().\n\n\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n"
    },
    {
      "commit": "94f57f33680922197581b127b3badde7ef658258",
      "tree": "6bd9162944d0b90a4ae153f3ec29d0073d64f67b",
      "parents": [
        "b2ed215a3338b8b16187be8d136153054118a41e"
      ],
      "author": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Mon Dec 17 15:54:39 2007 -0400"
      },
      "committer": {
        "name": "Greg Kroah-Hartman",
        "email": "gregkh@suse.de",
        "time": "Thu Jan 24 20:40:28 2008 -0800"
      },
      "message": "Kobject: change drivers/cpuidle/sysfs.c to use kobject_init_and_add\n\nStop using kobject_register, as this way we can control the sending of\nthe uevent properly, after everything is properly initialized.\n\nCc: Shaohua Li \u003cshaohua.li@intel.com\u003e\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n"
    },
    {
      "commit": "83788c0caed3a425f64fa88fde7c78746b9cdd76",
      "tree": "b153a7d92c3f9f40dba1706349ef7c583938516a",
      "parents": [
        "4d8b4e1e02b4bb200e81b2efc915da6ce59d5d72"
      ],
      "author": {
        "name": "Adrian Bunk",
        "email": "bunk@kernel.org",
        "time": "Mon Oct 29 13:49:13 2007 +0100"
      },
      "committer": {
        "name": "Len Brown",
        "email": "len.brown@intel.com",
        "time": "Mon Oct 29 17:27:50 2007 -0400"
      },
      "message": "cpuidle: remove unused exports\n\nThis patch removes the following unused exports:\n- cpuidle_devices\n- cpuidle_register_governor\n- cpuidle_unregister_governor\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n"
    },
    {
      "commit": "4f86d3a8e297205780cca027e974fd5f81064780",
      "tree": "3c89624dea48a9de756256c935660ff7b24d5376",
      "parents": [
        "bbf25010f1a6b761914430f5fca081ec8c7accd1"
      ],
      "author": {
        "name": "Len Brown",
        "email": "len.brown@intel.com",
        "time": "Wed Oct 03 18:58:00 2007 -0400"
      },
      "committer": {
        "name": "Len Brown",
        "email": "len.brown@intel.com",
        "time": "Wed Oct 10 00:12:41 2007 -0400"
      },
      "message": "cpuidle: consolidate 2.6.22 cpuidle branch into one patch\n\ncommit e5a16b1f9eec0af7cfa0830304b41c1c0833cf9f\nAuthor: Len Brown \u003clen.brown@intel.com\u003e\nDate:   Tue Oct 2 23:44:44 2007 -0400\n\n    cpuidle: shrink diff\n\n    processor_idle.c |  440 +++++++++++++++++++++++++++++++++++++++++--\n    1 file changed, 429 insertions(+), 11 deletions(-)\n\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit dfbb9d5aedfb18848a3e0d6f6e3e4969febb209c\nAuthor: Len Brown \u003clen.brown@intel.com\u003e\nDate:   Wed Sep 26 02:17:55 2007 -0400\n\n    cpuidle: reduce diff size\n\n    Reduces the cpuidle processor_idle.c diff vs 2.6.22 from this\n     processor_idle.c | 2006 ++++++++++++++++++++++++++-----------------\n     1 file changed, 1219 insertions(+), 787 deletions(-)\n\n    to this:\n     processor_idle.c |  502 +++++++++++++++++++++++++++++++++++++++----\n     1 file changed, 458 insertions(+), 44 deletions(-)\n\n    ...for the purpose of making the cpuilde patch less invasive\n    and easier to review.\n\n    no functional changes.  build tested only.\n\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 889172fc915f5a7fe20f35b133cbd205ce69bf6c\nAuthor: Venki Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Thu Sep 13 13:40:05 2007 -0700\n\n    cpuidle: Retain old ACPI policy for !CONFIG_CPU_IDLE\n\n    Retain the old policy in processor_idle, so that when CPU_IDLE is not\n    configured, old C-state policy will still be used. This provides a\n    clean gradual migration path from old ACPI policy to new cpuidle\n    based policy.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 9544a8181edc7ecc33b3bfd69271571f98ed08bc\nAuthor: Venki Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Thu Sep 13 13:39:17 2007 -0700\n\n    cpuidle: Configure governors by default\n\n    Quoting Len \"Do not give an option to users to shoot themselves in the foot\".\n\n    Remove the configurability of ladder and menu governors as they are\n    needed for default policy of cpuidle. That way users will not be able to\n    have cpuidle without any policy loosing all C-state power savings.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 8975059a2c1e56cfe83d1bcf031bcf4cb39be743\nAuthor: Adam Belay \u003cabelay@novell.com\u003e\nDate:   Tue Aug 21 18:27:07 2007 -0400\n\n    CPUIDLE: load ACPI properly when CPUIDLE is disabled\n\n    Change the registration return codes for when CPUIDLE\n    support is not compiled into the kernel.  As a result, the ACPI\n    processor driver will load properly even if CPUIDLE is unavailable.\n    However, it may be possible to cleanup the ACPI processor driver further\n    and eliminate some dead code paths.\n\n    Signed-off-by: Adam Belay \u003cabelay@novell.com\u003e\n    Acked-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit e0322e2b58dd1b12ec669bf84693efe0dc2414a8\nAuthor: Adam Belay \u003cabelay@novell.com\u003e\nDate:   Tue Aug 21 18:26:06 2007 -0400\n\n    CPUIDLE: remove cpuidle_get_bm_activity()\n\n    Remove cpuidle_get_bm_activity() and updates governors\n    accordingly.\n\n    Signed-off-by: Adam Belay \u003cabelay@novell.com\u003e\n    Acked-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 18a6e770d5c82ba26653e53d240caa617e09e9ab\nAuthor: Adam Belay \u003cabelay@novell.com\u003e\nDate:   Tue Aug 21 18:25:58 2007 -0400\n\n    CPUIDLE: max_cstate fix\n\n    Currently max_cstate is limited to 0, resulting in no idle processor\n    power management on ACPI platforms.  This patch restores the value to\n    the array size.\n\n    Signed-off-by: Adam Belay \u003cabelay@novell.com\u003e\n    Acked-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 1fdc0887286179b40ce24bcdbde663172e205ef0\nAuthor: Adam Belay \u003cabelay@novell.com\u003e\nDate:   Tue Aug 21 18:25:40 2007 -0400\n\n    CPUIDLE: handle BM detection inside the ACPI Processor driver\n\n    Update the ACPI processor driver to detect BM activity and\n    limit state entry depth internally, rather than exposing such\n    requirements to CPUIDLE.  As a result, CPUIDLE can drop this\n    ACPI-specific interface and become more platform independent.  BM\n    activity is now handled much more aggressively than it was in the\n    original implementation, so some testing coverage may be needed to\n    verify that this doesn\u0027t introduce any DMA buffer under-run issues.\n\n    Signed-off-by: Adam Belay \u003cabelay@novell.com\u003e\n    Acked-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 0ef38840db666f48e3cdd2b769da676c57228dd9\nAuthor: Adam Belay \u003cabelay@novell.com\u003e\nDate:   Tue Aug 21 18:25:14 2007 -0400\n\n    CPUIDLE: menu governor updates\n\n    Tweak the menu governor to more effectively handle non-timer\n    break events.  Non-timer break events are detected by comparing the\n    actual sleep time to the expected sleep time.  In future revisions, it\n    may be more reliable to use the timer data structures directly.\n\n    Signed-off-by: Adam Belay \u003cabelay@novell.com\u003e\n    Acked-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit bb4d74fca63fa96cf3ace644b15ae0f12b7df5a1\nAuthor: Adam Belay \u003cabelay@novell.com\u003e\nDate:   Tue Aug 21 18:24:40 2007 -0400\n\n    CPUIDLE: fix \u0027current_governor\u0027 sysfs entry\n\n    Allow the \"current_governor\" sysfs entry to properly handle\n    input terminated with \u0027\\n\u0027.\n\n    Signed-off-by: Adam Belay \u003cabelay@novell.com\u003e\n    Acked-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit df3c71559bb69b125f1a48971bf0d17f78bbdf47\nAuthor: Len Brown \u003clen.brown@intel.com\u003e\nDate:   Sun Aug 12 02:00:45 2007 -0400\n\n    cpuidle: fix IA64 build (again)\n\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit a02064579e3f9530fd31baae16b1fc46b5a7bca8\nAuthor: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Sun Aug 12 01:39:27 2007 -0400\n\n    cpuidle: Remove support for runtime changing of max_cstate\n\n    Remove support for runtime changeability of max_cstate. Drivers can use\n    use latency APIs.\n\n    max_cstate can still be used as a boot time option and dmi override.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 0912a44b13adf22f5e3f607d263aed23b4910d7e\nAuthor: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Sun Aug 12 01:39:16 2007 -0400\n\n    cpuidle: Remove ACPI cstate_limit calls from ipw2100\n\n    ipw2100 already has code to use accetable_latency interfaces to limit the\n    C-state. Remove the calls to acpi_set_cstate_limit and acpi_get_cstate_limit\n    as they are redundant.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit c649a76e76be6bff1fd770d0a775798813a3f6e0\nAuthor: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Sun Aug 12 01:35:39 2007 -0400\n\n    cpuidle: compile fix for pause and resume functions\n\n    Fix the compilation failure when cpuidle is not compiled in.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Acked-by: Adam Belay \u003cadam.belay@novell.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 2305a5920fb8ee6ccec1c62ade05aa8351091d71\nAuthor: Adam Belay \u003cabelay@novell.com\u003e\nDate:   Thu Jul 19 00:49:00 2007 -0400\n\n    cpuidle: re-write\n\n    Some portions have been rewritten to make the code cleaner and lighter\n    weight.  The following is a list of changes:\n\n    1.) the state name is now included in the sysfs interface\n    2.) detection, hotplug, and available state modifications are handled by\n    CPUIDLE drivers directly\n    3.) the CPUIDLE idle handler is only ever installed when at least one\n    cpuidle_device is enabled and ready\n    4.) the menu governor BM code no longer overflows\n    5.) the sysfs attributes are now printed as unsigned integers, avoiding\n    negative values\n    6.) a variety of other small cleanups\n\n    Also, Idle drivers are no longer swappable during runtime through the\n    CPUIDLE sysfs inteface.  On i386 and x86_64 most idle handlers (e.g.\n    poll, mwait, halt, etc.) don\u0027t benefit from an infrastructure that\n    supports multiple states, so I think using a more general case idle\n    handler selection mechanism would be cleaner.\n\n    Signed-off-by: Adam Belay \u003cabelay@novell.com\u003e\n    Acked-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Acked-by: Shaohua Li \u003cshaohua.li@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit df25b6b56955714e6e24b574d88d1fd11f0c3ee5\nAuthor: Len Brown \u003clen.brown@intel.com\u003e\nDate:   Tue Jul 24 17:08:21 2007 -0400\n\n    cpuidle: fix IA64 buid\n\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit fd6ada4c14488755ff7068860078c437431fbccd\nAuthor: Adrian Bunk \u003cbunk@stusta.de\u003e\nDate:   Mon Jul 9 11:33:13 2007 -0700\n\n    cpuidle: static\n\n    make cpuidle_replace_governor() static\n\n    Signed-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n    Cc: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit c1d4a2cebcadf2429c0c72e1d29aa2a9684c32e0\nAuthor: Adrian Bunk \u003cbunk@stusta.de\u003e\nDate:   Tue Jul 3 00:54:40 2007 -0400\n\n    cpuidle: static\n\n    This patch makes the needlessly global struct menu_governor static.\n\n    Signed-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit dbf8780c6e8d572c2c273da97ed1cca7608fd999\nAuthor: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nDate:   Tue Jul 3 00:49:14 2007 -0400\n\n    export symbol tick_nohz_get_sleep_length\n\n    ERROR: \"tick_nohz_get_sleep_length\" [drivers/cpuidle/governors/menu.ko] undefined!\n    ERROR: \"tick_nohz_get_idle_jiffies\" [drivers/cpuidle/governors/menu.ko] undefined!\n\n    And please be sure to get your changes to core kernel suitably reviewed.\n\n    Cc: Adam Belay \u003cabelay@novell.com\u003e\n    Cc: Venki Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Cc: Ingo Molnar \u003cmingo@elte.hu\u003e\n    Cc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n    Cc: john stultz \u003cjohnstul@us.ibm.com\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 29f0e248e7017be15f99febf9143a2cef00b2961\nAuthor: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nDate:   Tue Jul 3 00:43:04 2007 -0400\n\n    tick.h needs hrtimer.h\n\n    It uses hrtimers.\n\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit e40cede7d63a029e92712a3fe02faee60cc38fb4\nAuthor: Venki Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Tue Jul 3 00:40:34 2007 -0400\n\n    cpuidle: first round of documentation updates\n\n    Documentation changes based on Pavel\u0027s feedback.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 83b42be2efece386976507555c29e7773a0dfcd1\nAuthor: Venki Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Tue Jul 3 00:39:25 2007 -0400\n\n    cpuidle: add rating to the governors and pick the one with highest rating by default\n\n    Introduce a governor rating scheme to pick the right governor by default.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit d2a74b8c5e8f22def4709330d4bfc4a29209b71c\nAuthor: Venki Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Tue Jul 3 00:38:08 2007 -0400\n\n    cpuidle: make cpuidle sysfs driver governor switch off by default\n\n    Make default cpuidle sysfs to show current_governor and current_driver in\n    read-only mode.  More elaborate available_governors and available_drivers with\n    writeable current_governor and current_driver interface only appear with\n    \"cpuidle_sysfs_switch\" boot parameter.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 1f60a0e80bf83cf6b55c8845bbe5596ed8f6307b\nAuthor: Venki Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Tue Jul 3 00:37:00 2007 -0400\n\n    cpuidle: menu governor: change the early break condition\n\n    Change the C-state early break out algorithm in menu governor.\n\n    We only look at early breakouts that result in wakeups shorter than idle\n    state\u0027s target_residency.  If such a breakout is frequent enough, eliminate\n    the particular idle state upto a timeout period.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 45a42095cf64b003b4a69be3ce7f434f97d7af51\nAuthor: Venki Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Tue Jul 3 00:35:38 2007 -0400\n\n    cpuidle: fix uninitialized variable in sysfs routine\n\n    Fix the uninitialized usage of ret.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 80dca7cdba3e6ee13eae277660873ab9584eb3be\nAuthor: Venki Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Tue Jul 3 00:34:16 2007 -0400\n\n    cpuidle: reenable /proc/acpi//power interface for the time being\n\n    Keep /proc/acpi/processor/CPU*/power around for a while as powertop depends\n    on it. It will be marked deprecated and removed in future. powertop can use\n    cpuidle interfaces instead.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 589c37c2646c5e3813a51255a5ee1159cb4c33fc\nAuthor: Venki Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Tue Jul 3 00:32:37 2007 -0400\n\n    cpuidle: menu governor and hrtimer compile fix\n\n    Compile fix for menu governor.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 0ba80bd9ab3ed304cb4f19b722e4cc6740588b5e\nAuthor: Len Brown \u003clen.brown@intel.com\u003e\nDate:   Thu May 31 22:51:43 2007 -0400\n\n    cpuidle: build fix - cpuidle vs ipw2100 module\n\n    ERROR: \"acpi_set_cstate_limit\" [drivers/net/wireless/ipw2100.ko] undefined!\n\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit d7d8fa7f96a7f7682be7c6cc0cc53fa7a18c3b58\nAuthor: Adam Belay \u003cabelay@novell.com\u003e\nDate:   Sat Mar 24 03:47:07 2007 -0400\n\n    cpuidle: add the \u0027menu\u0027 governor\n\n    Here is my first take at implementing an idle PM governor that takes\n    full advantage of NO_HZ.  I call it the \u0027menu\u0027 governor because it\n    considers the full list of idle states before each entry.\n\n    I\u0027ve kept the implementation fairly simple.  It attempts to guess the\n    next residency time and then chooses a state that would meet at least\n    the break-even point between power savings and entry cost.  To this end,\n    it selects the deepest idle state that satisfies the following\n    constraints:\n         1. If the idle time elapsed since bus master activity was detected\n            is below a threshold (currently 20 ms), then limit the selection\n            to C2-type or above.\n         2. Do not choose a state with a break-even residency that exceeds\n            the expected time remaining until the next timer interrupt.\n         3. Do not choose a state with a break-even residency that exceeds\n            the elapsed time between the last pair of break events,\n            excluding timer interrupts.\n\n    This governor has an advantage over \"ladder\" governor because it\n    proactively checks how much time remains until the next timer interrupt\n    using the tick infrastructure.  Also, it handles device interrupt\n    activity more intelligently by not including timer interrupts in break\n    event calculations.  Finally, it doesn\u0027t make policy decisions using the\n    number of state entries, which can have variable residency times (NO_HZ\n    makes these potentially very large), and instead only considers sleep\n    time deltas.\n\n    The menu governor can be selected during runtime using the cpuidle sysfs\n    interface like so:\n    \"echo \"menu\" \u003e /sys/devices/system/cpu/cpuidle/current_governor\"\n\n    Signed-off-by: Adam Belay \u003cabelay@novell.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit a4bec7e65aa3b7488b879d971651cc99a6c410fe\nAuthor: Adam Belay \u003cabelay@novell.com\u003e\nDate:   Sat Mar 24 03:47:03 2007 -0400\n\n    cpuidle: export time until next timer interrupt using NO_HZ\n\n    Expose information about the time remaining until the next\n    timer interrupt expires by utilizing the dynticks infrastructure.\n    Also modify the main idle loop to allow dynticks to handle\n    non-interrupt break events (e.g. DMA).  Finally, expose sleep ticks\n    information to external code.  Thomas Gleixner is responsible for much\n    of the code in this patch.  However, I\u0027ve made some additional changes,\n    so I\u0027m probably responsible if there are any bugs or oversights :)\n\n    Signed-off-by: Adam Belay \u003cabelay@novell.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 2929d8996fbc77f41a5ff86bb67cdde3ca7d2d72\nAuthor: Adam Belay \u003cabelay@novell.com\u003e\nDate:   Sat Mar 24 03:46:58 2007 -0400\n\n    cpuidle: governor API changes\n\n    This patch prepares cpuidle for the menu governor.  It adds an optional\n    stage after idle state entry to give the governor an opportunity to\n    check why the state was exited.  Also it makes sure the idle loop\n    returns after each state entry, allowing the appropriate dynticks code\n    to run.\n\n    Signed-off-by: Adam Belay \u003cabelay@novell.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 3a7fd42f9825c3b03e364ca59baa751bb350775f\nAuthor: Venki Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Thu Apr 26 00:03:59 2007 -0700\n\n    cpuidle: hang fix\n\n    Prevent hang on x86-64, when ACPI processor driver is added as a module on\n    a system that does not support C-states.\n\n    x86-64 expects all idle handlers to enable interrupts before returning from\n    idle handler.  This is due to enter_idle(), exit_idle() races.  Make\n    cpuidle_idle_call() confirm to this when there is no pm_idle_old.\n\n    Also, cpuidle look at the return values of attch_driver() and set\n    current_driver to NULL if attach fails on all CPUs.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 4893339a142afbd5b7c01ffadfd53d14746e858e\nAuthor: Shaohua Li \u003cshaohua.li@intel.com\u003e\nDate:   Thu Apr 26 10:40:09 2007 +0800\n\n    cpuidle: add support for max_cstate limit\n\n    With CPUIDLE framework, the max_cstate (to limit max cpu c-state)\n    parameter is ingored. Some systems require it to ignore C2/C3\n    and some drivers like ipw require it too.\n\n    Signed-off-by: Shaohua Li \u003cshaohua.li@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 43bbbbe1cb998cbd2df656f55bb3bfe30f30e7d1\nAuthor: Shaohua Li \u003cshaohua.li@intel.com\u003e\nDate:   Thu Apr 26 10:40:13 2007 +0800\n\n    cpuidle: add cpuidle_fore_redetect_devices API\n\n    add cpuidle_force_redetect_devices API,\n    which forces all CPU redetect idle states.\n    Next patch will use it.\n\n    Signed-off-by: Shaohua Li \u003cshaohua.li@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit d1edadd608f24836def5ec483d2edccfb37b1d19\nAuthor: Shaohua Li \u003cshaohua.li@intel.com\u003e\nDate:   Thu Apr 26 10:40:01 2007 +0800\n\n    cpuidle: fix sysfs related issue\n\n    Fix the cpuidle sysfs issue.\n    a. make kobject dynamicaly allocated\n    b. fixed sysfs init issue to avoid suspend/resume issue\n\n    Signed-off-by: Shaohua Li \u003cshaohua.li@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 7169a5cc0d67b263978859672e86c13c23a5570d\nAuthor: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nDate:   Wed Mar 28 22:52:53 2007 -0400\n\n    cpuidle: 1-bit field must be unsigned\n\n    A 1-bit bitfield has no room for a sign bit.\n    drivers/cpuidle/governors/ladder.c:54:16: error: dubious bitfield without explicit `signed\u0027 or `unsigned\u0027\n\n    Signed-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\n    Cc: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 4658620158dc2fbd9e4bcb213c5b6fb5d05ba7d4\nAuthor: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Wed Mar 28 22:52:41 2007 -0400\n\n    cpuidle: fix boot hang\n\n    Patch for cpuidle boot hang reported by Larry Finger here.\n    http://www.ussg.iu.edu/hypermail/linux/kernel/0703.2/2025.html\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Cc: Larry Finger \u003clarry.finger@lwfinger.net\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit c17e168aa6e5fe3851baaae8df2fbc1cf11443a9\nAuthor: Len Brown \u003clen.brown@intel.com\u003e\nDate:   Wed Mar 7 04:37:53 2007 -0500\n\n    cpuidle: ladder does not depend on ACPI\n\n    build fix for CONFIG_ACPI\u003dn\n\n    In file included from drivers/cpuidle/governors/ladder.c:21:\n    include/acpi/processor.h:88: error: expected specifier-qualifier-list before ‘acpi_integer’\n    include/acpi/processor.h:106: error: expected specifier-qualifier-list before ‘acpi_integer’\n    include/acpi/processor.h:168: error: expected specifier-qualifier-list before ‘acpi_handle’\n\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 8c91d958246bde68db0c3f0c57b535962ce861cb\nAuthor: Adrian Bunk \u003cbunk@stusta.de\u003e\nDate:   Tue Mar 6 02:29:40 2007 -0800\n\n    cpuidle: make code static\n\n    This patch makes the following needlessly global code static:\n    - driver.c: __cpuidle_find_driver()\n    - governor.c: __cpuidle_find_governor()\n    - ladder.c: struct ladder_governor\n\n    Signed-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n    Cc: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Cc: Adam Belay \u003cabelay@novell.com\u003e\n    Cc: Shaohua Li \u003cshaohua.li@intel.com\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 0c39dc3187094c72c33ab65a64d2017b21f372d2\nAuthor: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Wed Mar 7 02:38:22 2007 -0500\n\n    cpu_idle: fix build break\n\n    This patch fixes a build breakage with !CONFIG_HOTPLUG_CPU and\n    CONFIG_CPU_IDLE.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 8112e3b115659b07df340ef170515799c0105f82\nAuthor: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Tue Mar 6 02:29:39 2007 -0800\n\n    cpuidle: build fix for !CPU_IDLE\n\n    Fix the compile issues when CPU_IDLE is not configured.\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Cc: Adam Belay \u003cabelay@novell.com\u003e\n    Cc: Shaohua Li \u003cshaohua.li@intel.com\u003e\n    Signed-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 1eb4431e9599cd25e0d9872f3c2c8986821839dd\nAuthor: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Thu Feb 22 13:54:57 2007 -0800\n\n    cpuidle take2: Basic documentation for cpuidle\n\n    Documentation for cpuidle infrastructure\n\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Adam Belay \u003cabelay@novell.com\u003e\n    Signed-off-by: Shaohua Li \u003cshaohua.li@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit ef5f15a8b79123a047285ec2e3899108661df779\nAuthor: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Thu Feb 22 13:54:03 2007 -0800\n\n    cpuidle take2: Hookup ACPI C-states driver with cpuidle\n\n    Hookup ACPI C-states onto generic cpuidle infrastructure.\n\n    drivers/acpi/procesor_idle.c is now a ACPI C-states driver that registers as\n    a driver in cpuidle infrastructure and the policy part is removed from\n    drivers/acpi/processor_idle.c. We use governor in cpuidle instead.\n\n    Signed-off-by: Shaohua Li \u003cshaohua.li@intel.com\u003e\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Adam Belay \u003cabelay@novell.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\ncommit 987196fa82d4db52c407e8c9d5dec884ba602183\nAuthor: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nDate:   Thu Feb 22 13:52:57 2007 -0800\n\n    cpuidle take2: Core cpuidle infrastructure\n\n    Announcing \u0027cpuidle\u0027, a new CPU power management infrastructure to manage\n    idle CPUs in a clean and efficient manner.\n    cpuidle separates out the drivers that can provide support for multiple types\n    of idle states and policy governors that decide on what idle state to use\n    at run time.\n    A cpuidle driver can support multiple idle states based on parameters like\n    varying power consumption, wakeup latency, etc (ACPI C-states for example).\n    A cpuidle governor can be usage model specific (laptop, server,\n    laptop on battery etc).\n    Main advantage of the infrastructure being, it allows independent development\n    of drivers and governors and allows for better CPU power management.\n\n    A huge thanks to Adam Belay and Shaohua Li who were part of this mini-project\n    since its beginning and are greatly responsible for this patchset.\n\n    This patch:\n\n    Core cpuidle infrastructure.\n    Introduces a new abstraction layer for cpuidle:\n    * which manages drivers that can support multiple idles states. Drivers\n      can be generic or particular to specific hardware/platform\n    * allows pluging in multiple policy governors that can take idle state policy\n      decision\n    * The core also has a set of sysfs interfaces with which administrato can know\n      about supported drivers and governors and switch them at run time.\n\n    Signed-off-by: Adam Belay \u003cabelay@novell.com\u003e\n    Signed-off-by: Shaohua Li \u003cshaohua.li@intel.com\u003e\n    Signed-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\n    Signed-off-by: Len Brown \u003clen.brown@intel.com\u003e\n\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n"
    }
  ]
}