linaro-dev January 2012

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125 participants
124 discussions

Notes from Platform - Working Group Sync January 10, 2012

by David Zinman

Power Management Item: ===================== One of the roadmap cards the PMWG is working on is the thermal management card. http://status.linaro.org/card/PMWG2011-THERMAL-MANAGEMENT.html One of the acceptance criteria for this item is: Thermal management should be validated on an Android image; a suggestion is to run the system on the highest OPP, and use that to trigger the thermal transition. Per Amit D., This topic has been discussed with Samsung landing team, they will pick these patches for hwpack and android release. I want to make sure this happens and the patches make it to an Android image that we can test with on Samsung platform. Android Agenda Items =================== 1. Single kernel? 2. Benchmarks-to-toolchain-group work 3. Developer tools 4. MM help with Video Conferencing 5. GFX help GLMark2 6. PM on all Android targets 7. How else can Android help you? Notes: --------- * Single Kernel status unknown. * Valgrind +2 * MM help with video conferencing? * How can Android better help you * MM? Panda Audio enablement, Vishal question, what’s the plan for the rest, AI for Zach to send plan. * GFX? Wiki pages are helpful. Some kind of dev guide. PoC list for Android issues. * Toolchain: Valgrind, auto-benchmarks, PoC lists, getting going * PM: Power Tutor, stalled out, Zach to pick back up , Amit can you, once CPU idle, pick i up support * KWG: ??? Dev Platform Agenda Items: ======================= 1. Deliverables that might affect Ubuntu 2. How to make sure PM is properly integrated at the Ubuntu targets 3. MM and work needed to improve XBMC and Ubuntu TV (qtmobility) 4. GFX planning for 12.01 and work with Unity 3D 5. Anything missing at the Dev Platform (images, tools) that might be interesting for other WGs? Notes: --------- * Michael is fine with the current sysroot produced by Marcin, and plan to keep validating it by hand once they are available. Maybe a discussion should happen at Connect to see if this can be automate. * Please send Ubuntu input to Ricardo. * Still not sure if Ubuntu is properly using power management (as the LT is maintaining the tree and config set), Amit will take a look and see if anything is missing. * Point to MM working group, XBMC and Ubuntu TV, can the MM WG help? Ravi is. Kan Hu - XBMC still need a person for Ubuntu TV. * Mark and Alexandros is working on Unity-3D upstreaming. Fighting against time. They are the correct PoC for Unity-3D upstreaming for this month and through Connect. * Ricardo, are there any other tools that people need in Ubuntu? Jesse, images are fairly good. Validation Agenda Items: ==================== 1. There was some recent discussion with mmwg about audio e2e testing, and whether we should be testing this over hdmi for boards that default to hdmi, or whether all boards should start with a test to simply cover the jack loopback. 2. Kernel WG testsuite progress? Notes: --------- * End-to-end audio test. Need to handle HDMI audio test. Audio loop-back over jack is one test case and HDMI audio loop-back is a seperate test. Need HDMI test in the next 3-4 months. * Need to get audio test into LAVA. * Tom to work on Android and other higher level tests Housekeeping: =========== The quality of voice really sucks. Any suggestions for a public platform, or should we move back to #linaro-meeting? - Mumble seems to work better, as you can see where the noise is coming and mute the person (but people generally have issues with mumble). - Google Hangout? Would probably work fine too (it’s the only good thing of google+ ;-) There are quite a few conflicts with this time slot, we need to reschedule. I (dzin) will try to find a more appropriate time slot. Apologies and please bear with me. ============== = Action Items: = ============== Amit will send out CONFIG options to check and a test we can run by hand for http://status.linaro.org/card/PMWG2011-THERMAL-MANAGEMENT.html. Ideally this would be part of the pm test case available at LAVA. Besides config enablement, would be good to check with LTs if they are including the needed patches and so on. Zach to spin up a thread about feeding raw data to the toolchain grouphttp://status.linaro.org/card/PMWG2011-THERMAL-MANAGEMENT.html Zach to send an email to KWG. Ricardo to spin up a BP for remaining XBMC and Ubuntu TV work (2 different BPs to target 2 people) Zach to meet with Benjamin. Tony to talk to Alexandros about GLMark2 integration work, Zach to get a thread going. David to send out a summary to linaro-dev and linaro-android. -- David Zinman Linaro Release Manager | Project Manager Linaro.org | Open source software for ARM SoCs

12 years, 4 months

DD and Resize2fs

by Adrien Ferré

Hi, Just tried a linaro nano distrib for beagleboards. I used the dd tool to copy bit per bit the system to the sdcard but I now have a 500 Mb system on a 8 Gb sd card. First thing to do is to resize the rootfs partition. I'd like to know if it's possible to merge those 2 steps into one?

12 years, 4 months

[GIT PULL] essential u-boot patches for imx6 sabrelite

by Eric Miao

The following changes since commit cba9a894fdb1cb49b60fcd1d1d6919cbd7995dd5: Prepare v2011.12 (2011-12-23 20:25:35 +0100) are available in the git repository at: git://git.linaro.org/bsp/freescale/u-boot-linaro.git lt-imx6 Dirk Behme (1): i.mx: i.mx6q: add the initial support for i.mx6q Sabre Lite board Eric Miao (2): i.mx6q: mx6qsabrelite: Change default mmcdev and boot command net/eth.c: fix eth_write_hwaddr() to use dev->enetaddr as fall back Fabio Estevam (1): sdhc_boot: Introduce CONFIG_FSL_FIXED_MMC_LOCATION option Jason Chen (1): i.mx: i.mx6q: add aisp tz init for Off-Platform Peripheral Jason Liu (5): i.mx: fsl_esdhc: add the i.mx6q support i.mx: i.mx6q: Add the enet clock function fec: add the i.mx6q enet driver support i.mx6q: arm2: Add the enet function support i.mx6q: mx6qsabrelite: Add the ethernet function support MAINTAINERS | 1 + arch/arm/cpu/armv7/mx6/clock.c | 5 + arch/arm/cpu/armv7/mx6/soc.c | 10 + board/freescale/common/Makefile | 2 +- board/freescale/common/sdhc_boot.c | 2 + board/freescale/mx6qarm2/mx6qarm2.c | 90 +++++++++ board/freescale/mx6qsabrelite/Makefile | 42 ++++ board/freescale/mx6qsabrelite/imximage.cfg | 170 ++++++++++++++++ board/freescale/mx6qsabrelite/mx6qsabrelite.c | 259 +++++++++++++++++++++++++ boards.cfg | 1 + drivers/mmc/fsl_esdhc.c | 12 +- drivers/net/fec_mxc.c | 10 + drivers/net/fec_mxc.h | 7 +- include/configs/MPC8536DS.h | 1 + include/configs/P1010RDB.h | 1 + include/configs/P1_P2_RDB.h | 1 + include/configs/P2020COME.h | 1 + include/configs/P2020DS.h | 1 + include/configs/P2041RDB.h | 1 + include/configs/corenet_ds.h | 1 + include/configs/mx6qarm2.h | 13 +- include/configs/mx6qsabrelite.h | 171 ++++++++++++++++ include/configs/p1_p2_rdb_pc.h | 1 + net/eth.c | 3 +- 24 files changed, 797 insertions(+), 9 deletions(-) create mode 100644 board/freescale/mx6qsabrelite/Makefile create mode 100644 board/freescale/mx6qsabrelite/imximage.cfg create mode 100644 board/freescale/mx6qsabrelite/mx6qsabrelite.c create mode 100644 include/configs/mx6qsabrelite.h

12 years, 4 months

[PATCH] cma: fix limit adjustment in dma_declare_contiguous()

by Mans Rullgard

The upper limit needs to be rounded down to a multiple of the alignment, not up. Signed-off-by: Mans Rullgard <mans.rullgard(a)linaro.org> --- drivers/base/dma-contiguous.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c index 924c052..e10120f 100644 --- a/drivers/base/dma-contiguous.c +++ b/drivers/base/dma-contiguous.c @@ -256,7 +256,7 @@ int __init dma_declare_contiguous(struct device *dev, unsigned long size, alignment = PAGE_SIZE << max(MAX_ORDER, pageblock_order); base = ALIGN(base, alignment); size = ALIGN(size, alignment); - limit = ALIGN(limit, alignment); + limit &= ~(alignment - 1); /* Reserve memory */ if (base) { -- 1.7.8.3

12 years, 4 months

Platform - WG Weekly Sync for Jan 10, 2012

by david.zinman＠linaro.org

Greetings, The meeting has been moved to UTC 18:00 to better accommodate some people. If you cannot be present please nominate someone to attend. The meeting has also moved over to a conference line in order to be more efficient and cover everything we need to in an hour. The details for the voice call are here: Toll : 1-719-867-1571 Toll free : 1-877-860-3058 Participant Passcode: 673 095 0042 - individual numbers are here:https://www.mymeetingroom.com/meetinginfo/callmanagement.asp?bwebid=98… Here is the skeleton for the agenda for this week's Working Goup - Platform Sync. Please add any items of interest. https://docs.google.com/a/linaro.org/document/d/1WKHp5ewRAbdwGKWuVFNW-Ucw92… Here is the proposed agenda: 1. Bug hunt 2. High priority topics that need attention If there is enough time left over: 3. Nominate a ‘lesson learned’ and action 4. Blueprint 5. Issues

12 years, 4 months

[ACTIVITY] OCTO weekly status report - wk01.2012 (20120102-20120206)

by Ilias Biris

Hello! Weekly status report is in more detail here https://wiki.linaro.org/OfficeofCTO/WeeklyRepor Last meeting minutes are here: https://wiki.linaro.org/OfficeofCTO/2012-01-03 Highlights - ARMHF: progress ongoing during the festive period for the Debian builds - as can be seen from the progress updates in https://buildd.debian.org/stats/graph-week-big.png almost 90% of the debian archive is now built for ARMHF. + There are some notable items missing still: webkit is missing (ongoing effort to complete it now - it will enable building kde/gnome once done) and ruby 1.9.1 as well as the gnat compiler (ADA) + For a more complete list of the current ARMHF progress please visit: http://wiki.debian.org/ArmHardFloatTodo - ARM Server + Outline blueprints for the ARM Server work is ongoing + Looking into the Server WG preparation + Platform Team (bridge to the Ubuntu Server) - will need to also take some blueprints / requirements Questions/comments ? Best regards, -- Ilias Biris ilias.biris(a)linaro.org Project Manager, Linaro M: +358504839608, IRC: ibiris Skype: ilias_biris Linaro.org│ Open source software for ARM SoCs

12 years, 4 months

[Activity] Power Management WG Weekly Status report for week ending 2012-01-06

by Mounir Bsaibes

Enclosed please find the link to the Weekly Status report & meeting minutes for the Power Management working group for the week ending 2012-01-06 == Weekly Status Report == https://wiki.linaro.org/WorkingGroups/PowerManagement/Status/2012-01-05 == Meeting Minutes == https://wiki.linaro.org/WorkingGroups/PowerManagement/Meetings/2012-01-04 == Summary == (For details, see the Weekly Status Report and Meeting Minutes ) * Linaro Connect planning on setting a mini-summit about the scheduler * Power Management initial sessions for next Linaro Connect lcq1-12 has been set, please see: http://summit.ubuntu.com/lcq1-12/track/linaro-power-management/ * Common cpuidle * Working on moving cpuidle code from arch/arm to the drivers/cpuidle directory. Then it will be easier to do the common code. * Common Clock * Working on v5 of the patches, but talks are somewhat stalled, need to re-energize the feedback in order to move forward agreeing on direction how the common clock should look like. * Thermal Driver * Working on i.MX6 thermal driver * Integrated Samsung Thermal Driver with Linaro-kernel * Following up on the Thermal management testing on Android. 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>

12 years, 4 months

Initial support of HW video decode and XBMC at the Ubuntu LEB on a Pandaboard

by Ricardo Salveti

Hey folks, Just to point out my post about the work we've been doing to have hw video decode and XBMC to work with a Pandaboard, using the Ubuntu Linaro Evaluation Builds. http://rsalveti.wordpress.com/2012/01/06/hw-video-decode-and-xbmc-ubuntu-li… If you follow the instructions you should have hw video decode support and XBMC without any other step. At the moment there's still and annoying sink issue with XBMC, but we hope to get it fixed soon (at least once Rob Clark get a few spare cycles ;-). We hope to also have a set-top box image by the end of this cycle, that should use XBMC by default. Please give it a try and let us know about any other issue you may find. Thanks, -- Ricardo Salveti de Araujo

12 years, 4 months

[PATCH 0/6] Add SMDK5250 board support

by Chander Kashyap

This patchset add support for Samsung's SMDK5250 board based on EXYNOS5250 based SoC. It also adds support for MMC SPL booting. The porting is done by Samsung engineers at HQ in System LSI Team. I am contributing in upstreaming the code for the board. These patches are made on top of on the following patchset: "[PATCH 0/2] Exynos Related fixes" Chander Kashyap (6): Exynos: Add CONFIG_EXYNOS4 Macro to EXYNOS4 based boards Exynos: Clock.c: Use CONFIG_SYS_CLK_FREQ macro Exynos: Clock.c: Replace exynos4 prefix with exynos EEYNOS: Add SMDK5250 board support EXYNOS: SMDK5250: Add MMC SPL support SMDK5250: enable device tree support MAINTAINERS | 1 + arch/arm/cpu/armv7/exynos/clock.c | 80 ++-- arch/arm/include/asm/arch-exynos/clock.h | 232 +-------- arch/arm/include/asm/arch-exynos/clock_exynos4.h | 255 +++++++++ arch/arm/include/asm/arch-exynos/clock_exynos5.h | 352 +++++++++++++ arch/arm/include/asm/arch-exynos/cpu.h | 71 ++-- arch/arm/include/asm/arch-exynos/cpu_exynos4.h | 51 ++ arch/arm/include/asm/arch-exynos/cpu_exynos5.h | 39 ++ arch/arm/include/asm/arch-exynos/gpio.h | 51 ++- board/samsung/smdk5250/Makefile | 64 +++ board/samsung/smdk5250/lowlevel_init.S | 524 +++++++++++++++++++ board/samsung/smdk5250/mem_setup.S | 600 ++++++++++++++++++++++ board/samsung/smdk5250/mmc_boot.c | 58 ++ board/samsung/smdk5250/smdk5250.c | 125 +++++ board/samsung/smdk5250/smdk5250_setup.h | 583 +++++++++++++++++++++ board/samsung/smdk5250/tools/mkexynos_image.c | 117 +++++ boards.cfg | 1 + include/configs/origen.h | 1 + include/configs/s5pc210_universal.h | 2 + include/configs/smdk5250.h | 188 +++++++ include/configs/smdkv310.h | 1 + 21 files changed, 3094 insertions(+), 302 deletions(-) create mode 100644 arch/arm/include/asm/arch-exynos/clock_exynos4.h create mode 100644 arch/arm/include/asm/arch-exynos/clock_exynos5.h create mode 100644 arch/arm/include/asm/arch-exynos/cpu_exynos4.h create mode 100644 arch/arm/include/asm/arch-exynos/cpu_exynos5.h create mode 100644 board/samsung/smdk5250/Makefile create mode 100644 board/samsung/smdk5250/lowlevel_init.S create mode 100644 board/samsung/smdk5250/mem_setup.S create mode 100644 board/samsung/smdk5250/mmc_boot.c create mode 100644 board/samsung/smdk5250/smdk5250.c create mode 100644 board/samsung/smdk5250/smdk5250_setup.h create mode 100644 board/samsung/smdk5250/tools/mkexynos_image.c create mode 100644 include/configs/smdk5250.h -- 1.7.5.4

12 years, 4 months

[RFC] sched: Ensure cpu_power periodic update

by Vincent Guittot

With a lot of small tasks, the softirq sched is nearly never called when no_hz is enable. In this case the load_balance is mainly called with the newly_idle mode which doesn't update the cpu_power. Add a next_update field which ensure a maximum update period when there is short activity Signed-off-by: Vincent Guittot <vincent.guittot(a)linaro.org> --- include/linux/sched.h | 1 + kernel/sched/fair.c | 24 ++++++++++++++++-------- 2 files changed, 17 insertions(+), 8 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 64527c4..7178446 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -903,6 +903,7 @@ struct sched_group_power { * single CPU. */ unsigned int power, power_orig; + unsigned long next_update; /* * Number of busy cpus in this group. */ diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index a4d2b7a..809f484 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -215,6 +215,8 @@ calc_delta_mine(unsigned long delta_exec, unsigned long weight, const struct sched_class fair_sched_class; +static unsigned long __read_mostly max_load_balance_interval = HZ/10; + /************************************************************** * CFS operations on generic schedulable entities: */ @@ -3786,6 +3788,11 @@ void update_group_power(struct sched_domain *sd, int cpu) struct sched_domain *child = sd->child; struct sched_group *group, *sdg = sd->groups; unsigned long power; + unsigned long interval; + + interval = msecs_to_jiffies(sd->balance_interval); + interval = clamp(interval, 1UL, max_load_balance_interval); + sdg->sgp->next_update = jiffies + interval; if (!child) { update_cpu_power(sd, cpu); @@ -3893,12 +3900,15 @@ static inline void update_sg_lb_stats(struct sched_domain *sd, * domains. In the newly idle case, we will allow all the cpu's * to do the newly idle load balance. */ - if (idle != CPU_NEWLY_IDLE && local_group) { - if (balance_cpu != this_cpu) { - *balance = 0; - return; - } - update_group_power(sd, this_cpu); + if (local_group) { + if (idle != CPU_NEWLY_IDLE) { + if (balance_cpu != this_cpu) { + *balance = 0; + return; + } + update_group_power(sd, this_cpu); + } else if (time_after_eq(jiffies, group->sgp->next_update)) + update_group_power(sd, this_cpu); } /* Adjust by relative CPU power of the group */ @@ -4917,8 +4927,6 @@ void select_nohz_load_balancer(int stop_tick) static DEFINE_SPINLOCK(balancing); -static unsigned long __read_mostly max_load_balance_interval = HZ/10; - /* * Scale the max load_balance interval with the number of CPUs in the system. * This trades load-balance latency on larger machines for less cross talk. -- 1.7.4.1

12 years, 4 months

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linaro-dev January 2012