On 4 July 2012 16:09, Amit Kucheria <amit.kuche...@linaro.org> wrote:
> Hi all, > > Git Location: > http://git.linaro.org/gitweb?p=arm/big.LITTLE/mp.git;a=summary > Branch: big-LITTLE-MP-v1 > > We're announcing a kernel tree to track the various topics of the > big.LITTLE MP project. The aim of this tree is to help consolidate the > various topic patchsets that improve the behaviour of Linux on > asymmetric cores (e.g. big.LITTLE) and make smarter scheduling > decisions possible in order to save power. I'd like to think of it as > a linux-next tree focused on asymmetric support enablement. > > Viresh will recreate this tree when new versions of the topic > patchsets are available. IOW, as the patches are reviewed on the lists > and go through iterations, we'll pull each topic patchset into a topic > branch (e.g. per-task-load-average-v2, arm-asymmetric-support-v3). > Then a merge tree will be created (e.g. big-LITTLE-MP-v1) as needed > based on the latest versions of these topics. This should allow users > to track individual topics or leave out some topics if they so desire. > More topics will be added to this tree as the work becomes available. > > Linaro platform team will take the merge branch (big-LITTLE-MP-v1, > -v2, etc.) and use it for platform enablement work and testing on real > hardware and models. > > Problems should be reported on LKML/LAKML as usual if they are related > to the individual topic trees. If they're related to a bad merge or > config enablement please report on linaro-dev@lists.linaro.org. Hi Andrey, big-LITTLE-MP-v2 is ready to be pulled in. Following is a pull request for it: --------------8<--------------------->8------------------- The following changes since commit bd0a521e88aa7a06ae7aabaed7ae196ed4ad867a: Linux 3.5-rc6 (2012-07-07 17:23:56 -0700) are available in the git repository at: git://git.linaro.org/arm/big.LITTLE/mp.git big-LITTLE-MP-v2 for you to fetch changes up to ca789c61deb0219cd3fefdb26090bbc9701deada: Merge branches 'arm-asymmetric-support-v3', 'cpuidle-next-v4', 'per-cpu-thread-hotplug-v2', 'task-placement-v1' and 'config-fragments' into big-LITTLE-MP-v3 (2012-07-11 10:51:29 +0100) ---------------------------------------------------------------- Ben Segall (1): sched: maintain per-rq runnable averages Colin Cross (4): cpuidle: refactor out cpuidle_enter_state cpuidle: fix error handling in __cpuidle_register_device cpuidle: add support for states that affect multiple cpus cpuidle: coupled: add parallel barrier function Morten Rasmussen (5): sched: Add ftrace events for entity load-tracking sched: entity load-tracking load_avg_ratio sched: load-tracking driven wakeup migration for HMP platforms sched: Forced migration of high load task on HMP platforms sched: Add HMP forced task migration ftrace event Paul E. McKenney (1): rcu: Use smp_hotplug_thread facility for RCUs per-CPU kthread Paul Turner (15): sched: track the runnable average on a per-task entitiy basis sched: aggregate load contributed by task entities on parenting cfs_rq sched: maintain the load contribution of blocked entities sched: add an rq migration call-back to sched_class sched: account for blocked load waking back up sched: aggregate total task_group load sched: compute load contribution by a group entity sched: normalize tg load contributions against runnable time sched: maintain runnable averages across throttled periods sched: replace update_shares weight distribution with per-entity computation sched: refactor update_shares_cpu() -> update_blocked_avgs() sched: update_cfs_shares at period edge sched: make __update_entity_runnable_avg() fast sched: implement usage tracking sched: introduce temporary FAIR_GROUP_SCHED dependency for load-tracking Peter Zijlstra (1): sched, x86: Remove broken power estimation Thomas Gleixner (6): rcu: Yield simpler kthread: Implement park/unpark facility smpboot: Provide infrastructure for percpu hotplug threads softirq: Use hotplug thread infrastructure watchdog: Use hotplug thread infrastructure infiniband: ehca: Use hotplug thread infrastructure Vincent Guittot (4): ARM: topology: Add arch_scale_freq_power function ARM: topology: factorize the update of sibling masks ARM: topology: Update cpu_power according to DT information sched: cpu_power: enable ARCH_POWER Viresh Kumar (3): configs: Add config fragments for big LITTLE MP linaro/configs: Update big LITTLE MP fragment for task placement work Merge branches 'arm-asymmetric-support-v3', 'cpuidle-next-v4', 'per-cpu-thread-hotplug-v2', 'task-placement-v1' and 'config-fragments' into big-LITTLE-MP-v3 arch/arm/Kconfig | 29 + arch/arm/kernel/topology.c | 209 +++- arch/x86/kernel/cpu/Makefile | 2 +- arch/x86/kernel/cpu/sched.c | 55 - drivers/cpuidle/Kconfig | 3 + drivers/cpuidle/Makefile | 1 + drivers/cpuidle/coupled.c | 715 +++++++++++ drivers/cpuidle/cpuidle.c | 68 +- drivers/cpuidle/cpuidle.h | 32 + drivers/infiniband/hw/ehca/ehca_irq.c | 240 ++-- drivers/infiniband/hw/ehca/ehca_irq.h | 5 +- include/linux/cpuidle.h | 11 + include/linux/kthread.h | 11 +- include/linux/sched.h | 19 + include/linux/smpboot.h | 40 + include/trace/events/sched.h | 151 +++ kernel/cpu.c | 10 +- kernel/kthread.c | 184 ++- kernel/rcutree.c | 12 +- kernel/rcutree.h | 15 +- kernel/rcutree_plugin.h | 375 +----- kernel/rcutree_trace.c | 3 +- kernel/sched/core.c | 5 + kernel/sched/debug.c | 39 +- kernel/sched/fair.c | 1105 ++++++++++++++--- kernel/sched/features.h | 2 +- kernel/sched/sched.h | 60 +- kernel/smpboot.c | 206 ++++ kernel/smpboot.h | 4 + kernel/softirq.c | 84 +- kernel/watchdog.c | 231 ++-- linaro/configs/android.conf | 30 + linaro/configs/big-LITTLE-MP.conf | 9 + linaro/configs/linaro-base.conf | 84 ++ linaro/configs/ubuntu-minimal.conf | 24 + linaro/configs/ubuntu.conf | 2133 +++++++++++++++++++++++++++++++++ 36 files changed, 5174 insertions(+), 1032 deletions(-) delete mode 100644 arch/x86/kernel/cpu/sched.c create mode 100644 drivers/cpuidle/coupled.c create mode 100644 include/linux/smpboot.h create mode 100644 linaro/configs/android.conf create mode 100644 linaro/configs/big-LITTLE-MP.conf create mode 100644 linaro/configs/linaro-base.conf create mode 100644 linaro/configs/ubuntu-minimal.conf create mode 100644 linaro/configs/ubuntu.conf
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