linaro-dev October 2011

linaro-dev@lists.linaro.org

107 participants
156 discussions

by Amit Kachhap

Hi Nicolas, This is a request to pull L2 retention cpuidle implementation from git://git.linaro.org/people/amitdanielk/linux.git (branch- samsung_cpuidle_l2_retention) The top 5 patches on this refers to the work and this is heavily based on Russell's rmk-next tree. So if it is possible to take this patches for this month linaro release then please pull them. All these patches with minor modifications will be upstreamed to mainline once Russell tree is in sync with Samsung's maintainers tree. Thanks, Amit Daniel Linaro PMWG member

14 years

Linaro Kernel October 2011 Release

by Deepak Saxena

The Linaro Kernel Working Group (KWG) is excited to announce the availability our October 2011 development snapshot: linux-linaro-3.1-2011.10-1 As the word "snapshot" implies, these are meant as development kernels and have not been fully validated. You should expect issues and to help us deliver a better kernel in the future, please file bugs in Launchpad at https://bugs.launchpad.net/linux-linaro. The source tarball is available at: http://launchpad.net/linux-linaro/3.1/3.1-2011.10/+download/linux-linaro-3.… The kernel sources can also be accessed using git at: git://git.linaro.org/kernel/linux-linaro-3.1.git tag: linux-linaro-3.1-2011.10-1 In addition to an update to the 3.1 (-rc10) kernel, this kernel includes the following changes that are queued up for 3.2: - An EHCI slowdown workaround from Ming Lei - Thumb-2 undef handling fix for multi-CPU kernels from Dave Martin - ARM cpu topology definition from Vincent Guittot - RMK's devel-stable branch from last week that contains (among others): - Runtime consistent dma size init from Tixy - boot_params to atag_offset transition froma Nicolas Pitre - ARM pmu/perf updates from Will Deacon - The ability to append a DT to zImage from Nicolas Pitre - The ARM kprobes test infrastructure from Tixy - Suspend/resume consolidation and cleanups from RMK - cpu pm notifiers on ARM from Colin Cross A full change log against the 2011.09 release is available at: http://launchpad.net/linux-linaro/3.1/3.1-2011.10/+download/CHANGELOG-linux… High Priority Known Issues: - We have seen issues with boards not rebooting in our CI lab but so far Nicolas has been unable to reproduce it on his systems and we've not seen any reports of this on upstream 3.1-rc trees. Please download and test the kernel on your platforms and add notes to the following LP bug if you are able to reproduce this: https://bugs.launchpad.net/linaro-ci/+bug/860556 Mailing list: http://lists.linaro.org/mailman/listinfo/linaro-dev Questions? https://ask.linaro.org/

14 years

[Activity] Kernel WG Weekly Status report for week ending 2011-10-21

by Mounir Bsaibes

Enclosed please find the link to the Weekly Status report for the kernel working group for the week ending 2011-10-21 == Meeting Minutes == https://wiki.linaro.org/WorkingGroups/Kernel/Meetings/2011-10-17 == Weekly Status Report == https://wiki.linaro.org/WorkingGroups/Kernel/Status/2011-10-20 == Summary == (For more details, refer to the Weekly Status and Meeting Minutes) * Linaro Kernel * Released Linaro-kernel based on 3.1 https://launchpad.net/linux-linaro/+milestone/3.1-2011.10 * Linaro-Android kernel * Merged the initial Linaro-3.1 11.10 kernel with the omapzoom p-common-3.1 and Andy Green's android tracking tree branch and pushed out the linaro-android-3.1 branch. * SoC Tree * Code review and merging patches * Device Tree * [iMX] * All basic drivers are ready and starting to see people moving their imx5 based board support to DT, audio and usb are still big missing pieces * Pushing imx5-dt support to Arnd for v.3.2 merge window will send pull-req soon * [OMAP] * omap-hsmmc dt conversion completed * Adapted the omap-smps driver (originally done by Tero Kristo) to dt. * Reposted v2 of regulator dt support. Split the series to remove dependencies with omap i2c-twl dt conversions. * working on getting nfs working with dt on OMAP.. * more folks @ti have started using dt for various drivers * Pin Control * maturing pinctrl, planning next iteration mainly nVidias Stephen Warren and Barry Song are contributing * pinctrl / pinmux is in linux-next * Wakelocks * Discussion on lkml w/ rafael and others on wakelock alternatives continues * Flash filesystem * Handled by an IBM intern working with Arnd making good progress on the flash file system prototype, will be talking about it with people at ELC-E Best regards, Mounir -- Mounir Bsaibes Project Manager Follow Linaro.org: facebook.com/pages/Linaro/155974581091106 http://twitter.com/#!/linaroorg http://www.linaro.org/linaro-blog <http://www.linaro.org/linaro-blog>

14 years

The Value of Thumb-2

by Christian Robottom Reis

Hello there, Coming back from Asia I've been putting a lot of thought about how we can make sure we spend our engineering cycles on the work that is most valuable to the current Linaro members, and part of that means reassessing assumptions that we've carried since our foundation. The first point I want to raise is Thumb-2, the alternative ISA described by ARM like this: For performance optimised code Thumb-2 technology uses 31 percent less memory to reduce system cost, while providing up to 38 percent higher performance than existing high density code, which can be used to prolong battery-life or to enrich the product feature set. Thumb-2 technology is featured in the processor, and in all ARMv7 architecture-based processors. We've from the beginning set Thumb-2 in our standard configuration across platforms, but outside of Ubuntu, I think we're unique in that. So the questions I have are: - Do we know how much better Thumb-2 actually is, in practice? It's easy for us to confirm this on Android; what do the numbers and feel of the system tell us? - What are the downsides to using Thumb-2 in general? Do we have anecdotes or threads that talk about bad experiences or blockers in the transition? - If it's so great, how could we lead a wide-ranging transition to Thumb2 becoming the standard ISA for modern v7 applications, including Android, Yocto and anything else relevant that runs on a Cortex A? Thanks, -- Christian Robottom Reis, Engineering VP Brazil (GMT-3) | [+55] 16 9112 6430 | [+1] 612 216 4935 Linaro.org: Open Source Software for ARM SoCs

14 years

[Activity] Power Management WG Weekly Status report for week ending 2011-10-20

by Mounir Bsaibes

Enclosed please find the link to the Weekly Status report for the Power Management working group for the week ending 2011-10-20 == Meeting Minutes == https://wiki.linaro.org/WorkingGroups/PowerManagement/Meetings/2011-10-19 == Weekly Status Report == https://wiki.linaro.org/WorkingGroups/PowerManagement/Status/2011-10-20 == Summary == (For details, see the Weekly Status Report and Meeting Minutes ) * Sched_mc * Defined a workload to exercise sched_mc and pushed it to regression test suite * sched_mc tests on u8500 and vexpress with linaro 3.1 have passed * Thermal Management * Framework is integrated with TILT tracking tree, but still not fully operational, not stopping 4460 from crashing or resetting due to heat. * Supplied the TMU sensor driver and thermal interface layer to Samsung landing team for the hwpack release * Fixed some TMU sensor related bug reported by landing team. * Cpuidle * Finished common imx cpuidle driver version 3. * Continue working on common ARM cpuidle. * Started Samsung Internal discussions about mainlining the cpuidle driver. * Common Clock Framework * The second version of the core common clock is being discussed on LKML. * 90% complete porting OMAP-specific clock functions, http://thread.gmane.org/gmane.linux.kernel/1194440 * Cpuset * Developed a utility to do cpu load balancing with cpuset * Releases * power-qa with cpuhotplug support is released * Powerdebug, bug fix only Best regards, Mounir -- Mounir Bsaibes Project Manager Follow Linaro.org: facebook.com/pages/Linaro/155974581091106 http://twitter.com/#!/linaroorg http://www.linaro.org/linaro-blog <http://www.linaro.org/linaro-blog>

14 years

I will start cutting Android's RC release at 23:59:00 UTC on Friday, 2011/10/21

by Zach Pfeffer

So its basically like Sunday ;) As a point of interest here's how I cut the builds. I boot each tip: ~linaro-android/staging-origen ~linaro-android/staging-panda ~linaro-android/staging-imx53 ~linaro-android/staging-snowball ~linaro-android/landing-snowball ~linaro-android/tracking-panda ~linaro-android/panda ~linaro-android/beagle I take the pinned-manifest.xml from the last working tip build, commit it to the 11.10 release branch and kick off the released builds: ~linaro-android/staging-origen-11.10-release ~linaro-android/staging-panda-11.10-release ~linaro-android/staging-imx53-11.10-release ~linaro-android/staging-snowball-11.10-release ~linaro-android/landing-snowball-11.10-release ~linaro-android/tracking-panda-11.10-release ~linaro-android/panda-11.10-release ~linaro-android/beagle-11.10-release Abhishek and I then run through the tests from left to right on: https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AnpUtxWjZbP9dGFDU… ...for every build and board combo and file bugs or update existing bugs for anything that doesn't work. Its currently around 192 tests; to grow soon. Tests are documented here: https://wiki.linaro.org/Platform/QA/TestCases/Android Then I send an email to Fathi with the exact build number of the release. -- Zach Pfeffer Android Platform Team Lead, Linaro Platform Teams 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

14 years

[ACTIVITY] Android Platform Team 2011-10-10 to 2011-10-16

by Tony Mansson

Key Points for wider discussion =============================== * The gerrit review bot has been deployed. Changes submitted and approved in Gerrit get built in Android Build, then verified in LAVA, with resulting status propagated back to Gerrit. * All strict-aliasing violations in 2.3.5 have been fixed and will be sent to AOSP. Team Highlights =============================== * Connect sessions prepared: https://blueprints.launchpad.net/sprints/lcq4.11/+specs?searchtext=linaro-p… * Blog post: http://www.linaro.org/linaro-blog/2011/10/18/linaro-android-bot-review-achi… * Tip toolchain tracked and released against all targets for 11.10. * libjpeg-turbo has been benchmarked against the original Android libjpeg implementation. https://wiki.linaro.org/TomGall/LibJpegTurbo * Good progress on integration mmtest with lava-android-test. * A presentation of the Android Platform and builds has been made at ST-Ericsson. * Good progress on Origen Ethernet and WLAN. Miscellaneous =============================== * Two team members will attend ELC Europe. A poster will be presented. Issues =============================== * gerrit has been way too slow. * Android AOSP was unavailable on kernel.org. Bugs fixed =============================== * #837881, #859958, #874429, #806936 Blueprints =============================== https://launchpad.net/linaro-android/+milestone/11.10 Connect sessions schedule =============================== http://summit.linaro.org/uds-p/ Release PoC schedule for 11.10 =============================== || Date || 00:30 - 08:30 UTC || 08:30 - 16:30 UTC || 16:30 - 00:30 UTC || || 24th || pabhishek || bero || cyang || || 25th || bhoj || patrikryd || mansson || || 26th || botao_sun || patrikryd || fgiff ||

14 years

linaro-media-create/linaro-android-media-create command line options changes

by Fathi Boudra

Hi, linaro-media-create/linaro-android-media-create command line options are now using dashes to separate words instead of underscores. e.g. "--image_size" becomes "--image-size" This changes is available on the bzr repository and will be part of 2011.10 release. Please, update your scripts and install instructions that are using the deprecated command line options. For reference: http://bugs.launchpad.net/bugs/863091 Cheers, -- Fathi Boudra Linaro Release Manager | Validation Project Manager Linaro.org | Open source software for ARM SoCs

14 years

Project Management Sessions at Connect

by Joey STANFORD

Howdy, The project managers are working on a few interesting sessions for Connect. If you are interested please subscribe and attend the sessions. 1) Mapping Upstream Development to Blueprints, Work Items, Roadmaps, etc. https://blueprints.launchpad.net/linaro/+spec/linaro-general-upstream-proce… 2) Linaro Roadmapping Process https://blueprints.launchpad.net/linaro/+spec/linaro-training-roadmap-proce… 3) Linaro release process improvements https://blueprints.launchpad.net/linaro-project-management/+spec/linaro-gen… 4) Board Support Levels and Lifecycle (the End of Life discussion) https://blueprints.launchpad.net/linaro/+spec/linaro-platforms-lcq4.11-boar… Joey

14 years

[PATCH 1/4] pinctrl: get_group_pins() const fixes

by Stephen Warren

get_group_pins() "returns" a pointer to an array of const objects, through a pointer parameter. Fix the prototype so what's pointed at by the returned pointer is const, rather than the function parameter being const. This also allows the removal of a cast in each of the two current pinmux drivers. Signed-off-by: Stephen Warren <swarren(a)nvidia.com> --- drivers/pinctrl/core.c | 2 +- drivers/pinctrl/pinmux-sirf.c | 6 +++--- drivers/pinctrl/pinmux-u300.c | 6 +++--- drivers/pinctrl/pinmux.c | 4 ++-- include/linux/pinctrl/pinctrl.h | 4 ++-- 5 files changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index 623afbd..97a4eeb 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -332,7 +332,7 @@ static int pinctrl_groups_show(struct seq_file *s, void *what) seq_puts(s, "registered pin groups:\n"); while (ops->list_groups(pctldev, selector) >= 0) { - unsigned *pins; + const unsigned *pins; unsigned num_pins; const char *gname = ops->get_group_name(pctldev, selector); int ret; diff --git a/drivers/pinctrl/pinmux-sirf.c b/drivers/pinctrl/pinmux-sirf.c index de5c78a..cad4f5d 100644 --- a/drivers/pinctrl/pinmux-sirf.c +++ b/drivers/pinctrl/pinmux-sirf.c @@ -869,12 +869,12 @@ static const char *sirfsoc_get_group_name(struct pinctrl_dev *pctldev, } static int sirfsoc_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector, - unsigned ** const pins, - unsigned * const num_pins) + const unsigned **pins, + const unsigned *num_pins) { if (selector >= ARRAY_SIZE(sirfsoc_pin_groups)) return -EINVAL; - *pins = (unsigned *) sirfsoc_pin_groups[selector].pins; + *pins = sirfsoc_pin_groups[selector].pins; *num_pins = sirfsoc_pin_groups[selector].num_pins; return 0; } diff --git a/drivers/pinctrl/pinmux-u300.c b/drivers/pinctrl/pinmux-u300.c index 23f082f..be6e04d 100644 --- a/drivers/pinctrl/pinmux-u300.c +++ b/drivers/pinctrl/pinmux-u300.c @@ -849,12 +849,12 @@ static const char *u300_get_group_name(struct pinctrl_dev *pctldev, } static int u300_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector, - unsigned ** const pins, - unsigned * const num_pins) + const unsigned **pins, + unsigned *num_pins) { if (selector >= ARRAY_SIZE(u300_pin_groups)) return -EINVAL; - *pins = (unsigned *) u300_pin_groups[selector].pins; + *pins = u300_pin_groups[selector].pins; *num_pins = u300_pin_groups[selector].num_pins; return 0; } diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c index 08e7b0f..4679ae6 100644 --- a/drivers/pinctrl/pinmux.c +++ b/drivers/pinctrl/pinmux.c @@ -326,7 +326,7 @@ static int acquire_pins(struct pinctrl_dev *pctldev, const struct pinmux_ops *pmxops = pctldev->desc->pmxops; const char *func = pmxops->get_function_name(pctldev, func_selector); - unsigned *pins; + const unsigned *pins; unsigned num_pins; int ret; int i; @@ -367,7 +367,7 @@ static void release_pins(struct pinctrl_dev *pctldev, unsigned group_selector) { const struct pinctrl_ops *pctlops = pctldev->desc->pctlops; - unsigned *pins; + const unsigned *pins; unsigned num_pins; int ret; int i; diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h index 1e6f67e..be9f537 100644 --- a/include/linux/pinctrl/pinctrl.h +++ b/include/linux/pinctrl/pinctrl.h @@ -75,8 +75,8 @@ struct pinctrl_ops { unsigned selector); int (*get_group_pins) (struct pinctrl_dev *pctldev, unsigned selector, - unsigned ** const pins, - unsigned * const num_pins); + const unsigned **pins, + unsigned *num_pins); void (*pin_dbg_show) (struct pinctrl_dev *pctldev, struct seq_file *s, unsigned offset); }; -- 1.7.0.4

14 years

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linaro-dev October 2011