linaro-dev June 2013

linaro-dev@lists.linaro.org

57 participants
67 discussions

[PATCH] cpuidle: arm_big_little: pass target residency to mcpm

by Sebastian Capella

also cc linaro kernel Hi, This patch will forward target residency information from the arm_big_little driver to mcpm. If multiple powerdown states are used, the vendor specific code will need a way to distinguish the intended c-state information. I do not have TC2 hardware to verify this. Would someone be able to help verify this change on TC2? Thanks! Sebastian Sebastian Capella (1): cpuidle: arm_big_little: route target residency to mcpm drivers/cpuidle/arm_big_little.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) -- 1.7.9.5

13 years, 1 month

big.LITTLE MP status June 4, 2013

by Serge Broslavsky

https://wiki.linaro.org/projects/big.LITTLE.MP Work Items for functional completion: https://wiki.linaro.org/projects/big.LITTLE.MP/WorkItems Main Project page: https://launchpad.net/linaro-big-little-system Development ============ 1. big.LITTLE IKS IKS snapshot: git://git.linaro.org/landing-teams/working/arm/kernel.git More information: http://lists.linaro.org/pipermail/linaro-dev/2013-May/015882.html Also the latest Linaro 13.05 release contains big.LITTLE release with IKS code integrated. By default MP is used (IKS is off). To enable IKS: echo 1 > /sys/kernel/bL_switcher/active 2. big.LITTLE MP There are two branches, which are functionally equivalent - they tweak the scheduler to select the right processes to move to the A15 and try to decrease power consumption while maintaining performance. * A Reference (stable) big.LITTLE MP patchset (merged with linux-linaro): https://git.linaro.org/gitweb?p=arm/big.LITTLE/mp.git;a=shortlog;h=refs/hea… Recommended to be used for testing. * And an upstream (work in progress) big.LITTLE MP patchset: https://git.linaro.org/gitweb?p=arm/big.LITTLE/mp.git;a=shortlog;h=refs/hea… Being worked on in order to achieve the performance/power numbers of the reference one. Upstream discussion is ongoing. * Documentation: Code flow is already covered by several LWN articles. See https://wiki.linaro.org/WorkingGroups/PowerManagement/Doc/ in the Articles section. We will provide a tuning guide once we have reached agreement upstream. * Automated benchmarking code is ready: - A python script to download LAVA bundle and extract results and populate results on to given Google spreadsheet is complete and is in use. Some workarounds are needed for automatic pushing of results to spreadheet. Blueprint Updates ------------------ * https://blueprints.launchpad.net/linaro-big-little-system/+spec/big-little-… Ongoing work. * https://blueprints.launchpad.net/linaro-big-little-system/+spec/small-task-… - new version is being worked on * https://blueprints.launchpad.net/linaro-big-little-system/+spec/cpu-hot-plu… - done. * https://blueprints.launchpad.net/linaro-big-little-system/+spec/sched-coope… - Postponed. Priorities are to be re-evaluated. QA == big.LITTLE MP LAVA Dashboard http://validation.linaro.org/lava-server/dashboard/image-reports/linaro-and… Testing (week 22): sched_tests.git #Cases #Run Pass Fail Absolute pass rate Regression 20 19 19 0 100 % mpbasicsuite 14 10 10 0 100 % mpcoresuite 10 6 6 0 100 % mpextendedsuite 20 10 7 3 70 % mploadbalance 2 2 2 0 100 % http://lists.linaro.org/pipermail/linaro-dev/2013-May/016006.html Bugs: https://bugs.launchpad.net/linaro-big-little-system/+bugs?field.tag=bl-mp Highlight: Bug 1166246 - Lockup on post 3.9 IKS kernel - can be hardware or software bug, investigation continues. - seems to be related to MMC being in use (switching to USB stick can be used as a reliable workaround). -- Best Regards, Serge Broslavsky <serge.broslavsky(a)linaro.org> Project Manager, Linaro M: +37129426328 IRC: ototo Skype: serge.broslavsky http://linaro.org | Open source software for ARM SoCs

13 years, 1 month

[GIT PULL RESENT] CPUFreq: ARM Updates for v3.11

by Viresh Kumar

Hi Rafael, The following changes since commit d683b96b072dc4680fc74964eca77e6a23d1fa6e: Linux 3.10-rc4 (2013-06-02 17:11:17 +0900) are available in the git repository at: git://git.linaro.org/people/vireshk/linux.git cpufreq-next for you to fetch changes up to ea61623fe9badd5a195b3a0878e6d89a2f97ac0e: cpufreq: kirkwood: Select CPU_FREQ_TABLE option (2013-06-07 16:33:36 +0530) ---------------------------------------------------------------- Arnd Bergmann (2): cpufreq: SPEAr needs cpufreq table cpufreq: big.LITTLE needs cpufreq table Ezequiel Garcia (1): cpufreq: kirkwood: Select CPU_FREQ_TABLE option drivers/cpufreq/Kconfig.arm | 3 +++ 1 file changed, 3 insertions(+)

13 years, 1 month

[GIT PULL] CPUFreq: ARM Updates for v3.11

by Viresh Kumar

Hi Rafael, The following changes since commit d683b96b072dc4680fc74964eca77e6a23d1fa6e: Linux 3.10-rc4 (2013-06-02 17:11:17 +0900) are available in the git repository at: git://git.linaro.org/people/vireshk/linux.git cpufreq-next for you to fetch changes up to f13ad5d9829c060fffe5bf45b05cc3c689a2e719: cpufreq: kirkwood: Select CPU_FREQ_TABLE option (2013-06-07 16:21:13 +0530) ---------------------------------------------------------------- Arnd Bergmann (2): cpufreq: SPEAr needs cpufreq table cpufreq: bit.LITTLE needs cpufreq table Ezequiel Garcia (1): cpufreq: kirkwood: Select CPU_FREQ_TABLE option drivers/cpufreq/Kconfig.arm | 3 +++ 1 file changed, 3 insertions(+) -- Viresh

13 years, 1 month

(no subject)

by uberlord＠gentoo.org

Dear user of lists.linaro.org, We have received reports that your account has been used to send a huge amount of junk e-mail messages during the recent week. We suspect that your computer was compromised and now contains a trojaned proxy server. Please follow the instructions in the attached text file in order to keep your computer safe. Best wishes, lists.linaro.org support team.

13 years, 1 month

[ANN] snapshots/releases.linaro.org switched to Linaro SSO for auth

by Paul Sokolovsky

Hello, Following up with the migration of all Linaro services to Linaro Cloud infrastructure, ITS and LAVA teams proceed with migrating all services to consistently use Linaro Login (Single Sign-On) for authentication. Linaro download servers, http://snapshots.linaro.org & http://releases.linaro.org were migrated today. If you have access to restricted areas on those servers, please find a minute to check that everything works for you as expected. If you face any issues, please send a report to its(a)linaro.org . http://android-build.linaro.org and http://validation.linaro.org are expected to be next in line for Linaro SSO migration, in this month's timeframe. -- Best Regards, Paul Linaro.org | Open source software for ARM SoCs Follow Linaro: http://www.facebook.com/pages/Linaro http://twitter.com/#!/linaroorg - http://www.linaro.org/linaro-blog

13 years, 1 month

First ARM 64 server available?

by Cláudio Sampaio

http://www.cnx-software.com/2013/06/06/mitac-announces-7-star-64-bit-arm-se… After unveiling their GFX servers based on Marvell ARM Cortex A9 SoC at Computex 2012, Mitac announced their new 7-Star server at Computex 2013. This new server is based on Applied Micro X-Gene SoC<http://www.cnx-software.com/2012/04/28/appliedmicro-unveils-armv8-64-bit-ap…>featuring ARM Cortex A57 cores, and is one of the first, if not the first, 64-Bit ARM server ever. [image: Mitac 7-Star ARMv8 Server]<http://www.cnx-software.com/wp-content/uploads/2013/06/Mitac_7-Star_ARMv8_S…>The key features of Mitac Server are as follows: - 18x Front-loaded Computing Blades in 4U (176mm x 440mm x 650mm) - Server Blade Spec - SSI uModule v1.0 complaint - (1) ARMv8 compliant 64-bit SoC /blade - (2) DDR3 DIMM slots, and (2) 2.5” SATA 3.0 HDD support - (1) 10G SFP+ and (1) GbE port - IPMI V2.0 compliant - Pass-through Ethernet Module - Chassis Management - Hot-swap FAN and (2+1) RPSU support It will be available by the end of the year. That’s about all I know for now, but more information should eventually come up on Mitac 7-Star page<http://www.mitac.com/Business/7-Star.html> . Via PC Perspective<http://www.pcper.com/news/General-Tech/Computex-2013-MiTAC-Announces-High-D…> . Read more: http://www.cnx-software.com/2013/06/06/mitac-announces-7-star-64-bit-arm-se… -- Cláudio "Patola" Sampaio IRC: ptl - Yahoo: patolaaa Campinas, SP - Brazil.

13 years, 1 month

OpenEmbedded projects tracked on patches.linaro.org

by Nicolas Dechesne

hi there, as our contributions to OE might grow in the future we have decided to start tracking OE patches on http://patches.linaro.org/, like other upstream projects are being tracked. For now, we will be tracking oe-core and meta-oe trees only, as this is probably where most of us would contribute. If you think we need to track more OE trees, please say it! Can you please make sure that you cc patches(a)linaro.org for any contribution you make to OE, otherwise it won't get tracked! You can find OE project stats here: http://patches.linaro.org/project/oe-core/ http://patches.linaro.org/project/oe-meta-layer/ cheers nico

13 years, 1 month

ICS udev rule

by dani maoz

Hi, Environment: Pandaboard Android Version: 4.2.2 I would like to write udev rules to a propriety device i connect the the board. I looked at /etc/ for udev directory but didn't find it, Where i need to put my rule ? Can someone post an example? Thanks

13 years, 1 month

[ANNOUNCE] linux-linaro kernel schedule for 13.05 published

by Andrey Konovalov

Greetings, This wiki page: https://wiki.linaro.org/Platform/DevPlatform/LinuxLinaroKernelSchedule - is now tracking the linux-linaro kernel rebuilds for 13.05. v3.9 release based linux-linaro-core-tracking (llct) rebuild has been published, the tag is llct-20130502.0 . The 13.05 linux-linaro release will be v3.10-rc3 based, but let's do one more v3.9 based kernel not to miss the v3.9 release. The next step is: May 06: ll rebuild based on llct-20130502.0. The last llct update for this cycle is scheduled on May 21, The last linux-linaro update for this cycle is scheduled on May 23. May 23 is the linux-linaro code freeze for 13.05 (only bug fixes allowed after this date). Thanks, Andrey

13 years, 1 month

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linaro-dev June 2013