• Android

    • Platform Enablement
      • Android upgraded to 4.2.1
      • Android 12.12 toolchain released
      • Wifi on PandaBoard enabled for 4.2.1

      • Audio enabled for Origen 4210
    • LAVA/Testing
      • Support to handle 4.2.1 images were added
    • Upstreaming
      • Perf patches were rebased for 4.2.1 on 3.7 kernel
  • Developer Platform

    • Ubuntu baseline images are now based on the latest Ubuntu stable release, Quantal Quetzal (12.10)
    • CI loop for OpenEmbedded builds is set up: daily build are produced, boot tested and image report is available on LAVA dashboard

    • The developer rootfs contains the software stack required by the Kernel Working Group
    • Linaro U-Boot 2012.12 released, based off U-Boot v2013.01-rc1
      • include support for Origen quad (4412) and Arndale (5250) boards
    • Kernel package for IKS has been updated and b.L hardware pack converted to v3
    • OpenEmbedded ARMv8 build has been updated

      • Kernel updated to linux-linaro 3.7
      • binutils and gdb updated to HEAD
      • switch setup to use "--network bridged --network-bridge tap0" by default to have host<>model networking

      • switch to use php-fpm instead of Apache module
    • Linux Linaro has been updated
      • based on linux-linaro-core-tracking tree, llct-20121211.0 tag:
        • based on v3.7 release
        • config fragments: updated config-core-tracking and basic-board-configs topics
        • emmc patches from Kernel WG
        • updated linaro-android-3.7 topic by John Stultz
        • gator version 5.12
        • big-LITTLE-MP version master-v13
        • devfreq topic from Rajagopal Venkat
        • "KBuild: Allow scripts/* to be cross compiled" patch included. This is all that remains from the ubuntu-sauce topic.
        • patches to enable perf in Android by Bernhard Rosenkraenzer
      • updated Versatile Express patches from ARM LT
      • updated Origen patches from Samsung LT
    • Linux Linaro tracking updated, v3.4 based
      • Gator version 5.12
      • updated tilt-3.4 topic from TI LT; now includes the 3.4.22 stable release
  • Graphics and Multimedia

    • A glmark2 canvas (backend) for rendering using the DRM stack without X11
    • A glmark2 scene rendering a translucent model with reflective properties (e.g., a "crystal" statue)
  • Kernel

    • Refactor USB Host Drivers
      • Analyzing ehci-hcd and echi-omap source code (Dec 7)
      • Studying existing ehci-platform,echi-mxc, ehci-spear, and ehci-orion code (Dec 7)
    • Research impact on kernel size for multi-platform configs
      • Identify appropriate defconfig file: u8500_defconfig, vexpress_defconfig
      • Kernel static size measurement (Dec 01)
      • Currently we can start with 'free' and '/proc/modules'
      • Finalize dts file to use across all the platforms(Dec 14)
      • zImage with built-in's(Dec 01)
      • zImage static size with and without init sections (Dec 01)
      • Setup mmc rootfs for runtime size analysis for U8500 platform (Dec 17)
      • Setup qemu-linaro for runtime size analysis for vexpress platform (Dec 08)
      • Prepare mmc based rootfs with *.ko's (Dec 12)
      • Identify the zImage size with built-in and '*.ko' (Dec 19)
      • Gather kernel image and runtime size data for Ux500 platform (Dec 19)
      • Gather kernel image and runtime size data for Versatile express platform (Dec 19)
      • Gather kernel image and runtime size data for i.MX platform(Dec 18)
      • For each platform, identify FDT'd Modules that are participating for .ko(Dec 19)
      • zImage with *.ko's(Dec 18)
      • Prepare mmc based rootfs with *.ko's for u8500 platform(Dec 17)
      • Identify the number of pages used before and after installing the modules(Dec 19)
      • Followup with shawnGuo for runtime size data gathering on i.MX platform(Dec 18)
    • Android upstreaming: Ashmem
      • Review Minchan's v3 vma based appraoch, found an critical issue and reported it(Dec 11)
    • Android upstreaming: Lowmem
      • Create mempressure cgroup per David Rientjes suggestions (this also involves making vmpressure calculations per-thread)
      • Develop feedback cycle interface per akpm's & sent to lkml

      • Got some interest in using the new interface from kvm developer for automatic memory ballooning
    • Pincontrol GPIO range makeover
      • Patches for the above merged into Torvald's mainline tree (Dec 12)
    • Refactor EHCI controller code
      • Study existing ECHI code (Dec 7)
      • Studying existing ehci-platform,echi-mxc, ehci-spear, and ehci-orion code (Dec 7)
  • Power Management

    • Highlights

      • Getting b.L IKS out the door
        • Lots of benchmarking, kernel optimising, bug fixing and code cleanups
        • Power measurements and tuning using ARM's workbench
      • Release new version of powertop based on upstream 2.2 version
        • New feature to view devfreq device states
      • cpuidle - create new tool to analyse idle intersection of multiple cores
        • useful for optimising cpuidle driver to achieve cluster shutdown
    • Optimise cpufreq for IKS
      • Refactor cpufreq driver
      • Replicate Mathieu's work setup at my place to verify power figures
      • Fix cpufreq driver to work with on-the-fly disablement of bl_switcher
      • Host Automated Workload Benchmark Suite in a linaro private repo
      • Optimize/Fix issues in Workbench
      • Fix Nico/next kernel crashes due to cpufreq framework
      • Run lots of benchmark tests
      • Fix potential bugs in cpufreq core
      • Supply the same cpufreq driver to ARM LT Team
      • Work on spreadsheet used for keeping results
      • Fix any pending issues with cpufreq driver
    • Integration tree to bring together big.LITTLE MP related work
      • Host cpufreq-interactive-master (Host patches from Todd Poyners tree) and cpufreq-interactive-exp (master + optimization patches from Linaro) branches
      • Release v13 of big LITTLE MP tree
    • Tasking packing heuristics (Power-aware scheduler)
      • Make MP3 power measurement on TC2 ubuntu image with pack mechanism
      • Create an TC2 android image with packing mecanism
      • Make MP3 power measurement on TC2 android image with pack mechanism
      • Update ARM bench
      • Make power measurement on TC2 android image with pack mechanism and ARM bench
      • Prepare packing small task v2
      • Update TC2 firmware
      • Test IKS-MP kernel with packing small tasks
      • Fix function tracer with new kernel and firmware
      • Test cpu hotplug stree test on TC2 and get results
    • Thermal framework enhancements for non-ACPI platforms
      • Analyse ways to have more than one temp sensor and how to share cooling devices between 2 thermal zones
    • Keep powertop 2.x working on ARM
      • Add devfreq support into powertop to display all devfreq devices freq stats perhaps in new window
      • Rebase powertop to new 2.2 version
    • Upstream stericsson u8500 suspend driver
      • Look through the u8500 suspend codes
      • Find out if there is any dependencies blocking u8500 suspend upstream
    • cpuidle: support for multi-cluster in the core
      • parse a ftrace file and load data
      • do statistics on average, min, max time on the fly
      • compute intersection intervals
      • optimize intersection algorithm for memory
      • optimize intersection algorithm for speed
      • do statistics on intersections on the fly
      • display results
      • add options to the command line
      • add a cstate options to filter results
      • check plotting against intervals
      • create a wiki page the wakeup source and fill it step by step
    • Refactor the acpi cpuidle driver
      • fix power state recomputation and dynamic C-states
  • Toolchain

    • Linaro GCC 4.7 2012.12 released, based off GCC 4.7.2+svn194184
      • better 64 bit shifts in NEON
      • arm/aarch64-4.7-branch up to svn revision 194154
      • LP #1060221 - Fix ICE: libgrypt
    • Linaro GCC 4.6 2012.12 released, based off GCC 4.6.3+svn194340
    • Linaro QEMU 2012.12 released, based off upstream's recent 1.3.0 release
    • Linaro GDB 7.5 2012.12 released, based the FSF GDB 7.5.1 release
    • Linaro Toolchain Binaries 2012.12 released, updated to latest Linaro GCC 4.7 2012.12 and Linaro GDB 7.5 2012.12
  • LAVA

    • The validation lab increased its IP space from 255 to 65k addresses to prepare for new devices and LEG use cases requirements.
    • The Toolchain WG PandaBoard boards have been updated to support hard and soft float images

    • Image Reports for Automated Testing of OpenEmbedded builds is now availale

    • A new server is deployed in the validation lab for audio, power measurement, and SD-mux capable devices.
    • We started to use the 'salt' tool to manage the lab infrastructure
    • LAVA can execute Versatile Express jobs using the test image's DTB
    • VExpress-tc2 boards are converted to use IKS
    • The validation lab has increased the number of wireless access points available
    • The 'cbuild' service for the toolchain group is now running on a VM in the lab
    • The UI for finding, viewing and downloading attachments in the dashboard has been improved
    • Signal handlers can be written in shell and bundled with the tests themselves
    • Most lava-test and lava-android-test tests had lava-test-shell versions written for them
    • Subscriptions to test run filters work properly now. A user can choose to be notified on failed test job or always.
  • LEG

    • Completed the investigation of CRC32 for HDFS optimisation
    • Ported and submitted Non-Uniform Memory Access patches to upstream
    • Enabled GRUB on U-boot
    • Enabled UEFI on Samsung Arndale board
    • Provide a pre-built Ubuntu server image for Arndale using either U-boot or UEFI

Cycles/1212/Release/Highlights (last modified 2012-12-20 21:47:57)