linaro-dev March 2011

linaro-dev@lists.linaro.org

123 participants
172 discussions

[PATCHv2 0/3] hwmem: Hardware memory driver

by johan.xx.mossberg＠stericsson.com

Hello everyone, The following patchset implements a "hardware memory driver". The main purpose of hwmem is: * To allocate buffers suitable for use with hardware. Currently this means contiguous buffers. * To synchronize the caches for the allocated buffers. This is achieved by keeping track of when the CPU uses a buffer and when other hardware uses the buffer, when we switch from CPU to other hardware or vice versa the caches are synchronized. * To handle sharing of allocated buffers between processes i.e. import, export. Hwmem is available both through a user space API and through a kernel API. Here at ST-Ericsson we use hwmem for graphics buffers. Graphics buffers need to be contiguous due to our hardware, are passed between processes (usually application and window manager)and are part of usecases where performance is top priority so we can't afford to synchronize the caches unecessarily. Additions in v2: * Bugfixes * Added the possibility to map hwmem buffers in the kernel through hwmem_kmap/kunmap * Moved mach specific stuff to mach. Best regards Johan Mossberg Consultant at ST-Ericsson Johan Mossberg (3): hwmem: Add hwmem (part 1) hwmem: Add hwmem (part 2) hwmem: Add hwmem to ux500 arch/arm/mach-ux500/Makefile | 2 +- arch/arm/mach-ux500/board-mop500.c | 1 + arch/arm/mach-ux500/dcache.c | 266 +++++++++ arch/arm/mach-ux500/devices.c | 31 ++ arch/arm/mach-ux500/include/mach/dcache.h | 26 + arch/arm/mach-ux500/include/mach/devices.h | 1 + drivers/misc/Kconfig | 1 + drivers/misc/Makefile | 1 + drivers/misc/hwmem/Kconfig | 7 + drivers/misc/hwmem/Makefile | 3 + drivers/misc/hwmem/cache_handler.c | 510 ++++++++++++++++++ drivers/misc/hwmem/cache_handler.h | 61 +++ drivers/misc/hwmem/hwmem-ioctl.c | 455 ++++++++++++++++ drivers/misc/hwmem/hwmem-main.c | 799 ++++++++++++++++++++++++++++ include/linux/hwmem.h | 536 +++++++++++++++++++ 15 files changed, 2699 insertions(+), 1 deletions(-) create mode 100644 arch/arm/mach-ux500/dcache.c create mode 100644 arch/arm/mach-ux500/include/mach/dcache.h create mode 100644 drivers/misc/hwmem/Kconfig create mode 100644 drivers/misc/hwmem/Makefile create mode 100644 drivers/misc/hwmem/cache_handler.c create mode 100644 drivers/misc/hwmem/cache_handler.h create mode 100644 drivers/misc/hwmem/hwmem-ioctl.c create mode 100644 drivers/misc/hwmem/hwmem-main.c create mode 100644 include/linux/hwmem.h -- 1.7.4.1

14 years, 1 month

Running linaro-media-create on machine behind firewall

by Shawn Guo

I'm recently trying to install alpha-3 image using l-m-c on an AMD64 machine which is behind the company firewall. Though I have apt proxy set on host machine, l-m-c installing system (chroot env?) does not know it. Can we improve the l-m-c a little bit to copy apt proxy setting if any on host machine into installing system? So that the machine behind proxy can survive with l-m-c too. PS. Actually, I have my machine home which can directly access natty repository, but it's very slow (see below), probably because there is no natty mirror in China yet. Fetched 15.0 MB in 10min 22s (24.1 kB/s) When I use vpn to connect company network, speed of accessing ubuntu repository can reach ~200 kB/s. Considering that I'm testing l-m-c back and forth, I really need a faster apt speed within l-m-c. -- Regards, Shawn

14 years, 1 month

[PATCH] ARM: omap3: Fix assembler breakage in sleep34xx.S

by John Rigby

Assembler in latest binutils needs extra option to enable smc instructions introduced in: ARM: omap3: Remove hand-encoded SMC instructions Signed-off-by: John Rigby <john.rigby(a)linaro.org> --- arch/arm/mach-omap2/Makefile | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 898fffe..1d2d1f6 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -71,7 +71,7 @@ obj-$(CONFIG_OMAP_SMARTREFLEX) += sr_device.o smartreflex.o obj-$(CONFIG_OMAP_SMARTREFLEX_CLASS3) += smartreflex-class3.o AFLAGS_sleep24xx.o :=-Wa,-march=armv6 -AFLAGS_sleep34xx.o :=-Wa,-march=armv7-a +AFLAGS_sleep34xx.o :=-Wa,-march=armv7-a$(plus_sec) ifeq ($(CONFIG_PM_VERBOSE),y) CFLAGS_pm_bus.o += -DDEBUG -- 1.7.1

14 years, 1 month

[NOTES] 3/09 Linaro Developer Platform Weekly Status Meeting

by Tom Gall

Enclosed you'll find a link to the agenda, notes and actions from the Linaro Developer Platforms Weekly Status meeting held on March 9th in #linaro-meeting on irc.freenode.net at 16:00 UTC. https://wiki.linaro.org/Platform/Foundations/2011-03-09 Actions from the meeting where as follows: * wookey_ to send a patch to debian-policy to allow multiarch -dev packages * jcrigby and hrw to figure out how to boot efikasb from an external u-boot so hrw can test the latest tree * jcrigby to check with dmart about progress on porting kprobes to thumb-2 * ppearse to investigate how libtool does ldopen for GObject Introspection work Regards, Tom (tgall_foo) Developer Platforms Team "We want great men who, when fortune frowns will not be discouraged." - Colonel Henry Knox w) tom.gall att linaro.org w) tom_gall att vnet.ibm.com h) tom_gall att mac.com

14 years, 1 month

[REPORT] 2011-03-10 Infrastructure team weekly report

by Jamie Bennett

Hi, The Infrastructure team weekly report for 2011-03-10 is now available and can be found at: https://wiki.linaro.org/Platform/Infrastructure/Status/2011-03-10 The report is also reproduced in full below. Regards, Jamie. -- Linaro Release Manager | Platform Project Manager -- * Period: (20110303-20110309) * PM: JamieBennett <jamie.bennett(a)linaro.org> * Past reports : https://wiki.linaro.org/Platform/Infrastructure/Status * Burndown information : http://status.linaro.org/linaro-infrastructure.html * Stakeholder process: https://wiki.linaro.org/Platform/Infrastructure/CurrentProjects == Key Points for wider discussion == * A 'feature-complete' version of the Android build system front-end to Jenkins is available at {{{https://android-build.linaro.org/mockup/}}}. Builds can be done by members of the ~linaro-android-builders Launchpad team and the actual Jenkins instance can be found at {{{http://android-build.linaro.org/jenkins}}}. Please take a look and give comments. * svammel mass bug filing tool for build failures is progressing. Some more improvements planned but initial reviews are favorable. Code reviews are welcome. == Team Highlights == * ec2 investigations continue to find the best solution for the continuous integration service. An ebs instance either small or large for the master and include slaves as when needed for builds seems the most effective. * Mattias and Deepti now have Panda boards although Deepti's is shared at the moment. * Initial patch tracking metrics have been given to management. * Tracking bugs as work items on non-Ubuntu projects was enabled in the status.linaro.org code. * Initial work on a planet instance for Linaro has been undertaken. The results can be found at [[http://ec2-50-17-53-200.compute-1.amazonaws.com/]] == Upcoming Deliverables == * linaro-image-tools will be getting a release soon (likely before the monthly release date to ease the process of getting it in to Ubuntu) * Final patch metrics for the next member report in two weeks. == Risks / Issues == * '''VERY HIGH IMPACT''': Mattias unable to work productively due to IT restrictions in ST-E (5 weeks): some progress. Has process now to request changes, but little response to his requests in more than 4 weeks. Mattias is working from home or over 3G in the meantime. * '''HIGH IMPACT''': PatchTracking requires deploying Patchwork (4 weeks): Discussion with IS, and it is not expected to take them long to do once they get to it. They have indicated that they may be able to start at the end of this week, or in the week after. * '''HIGH IMPACT''': Gerrit instance needed for Android (4 weeks): Co-ordination with IS has started. Waiting to hear from them if we can get it this month, and what we need to do to help with that. * '''HIGH IMPACT''': Deepti believes she has not been granted travel to Linaro@UDS (2 weeks): She will attend remotely where possible. * '''HIGH IMPACT''': A large portion of James' time is taken by project management at the moment (several weeks): investigations are in progress on how to move most of this work onto a PM. * '''MEDIUM IMPACT''': Deepti lacking hardware to work with her Panda board: Deepti has received the Panda board, but doesn't have a USB->serial cable for it, so is still unable to use it for much. Working on tasks that don't require it, but unable to participate in image testing. (many weeks). * '''MEDIUM IMPACT''': OurOwnOffspring lacking hardware (many weeks): x86 for master is ready and waiting, XMs for slaves delivered to IS. Awaiting setup from IS. * '''MEDIUM IMPACT''': Want a Jenkins/Hudson instance for Continuous Integration purposes (many weeks): Discussions with IS, and they will provide one, but timeframe is unclear at this point. Will host ourselves until IS can provide. Work on getting an ec2 instance for this has started, and we should have it running in ec2 by next week. * '''MEDIUM IMPACT''': Deepti and Avik are sharing one Panda board meaning some hardware specific work is being blocked (1 week). == Miscellaneous == * Guilherme at PyCon 10-15 March * James away 21st March * Deepti on vacation 11th March

14 years, 1 month

[REPORT] 2011-03-10 Android team weekly report

by Jamie Bennett

Hi, The Android team weekly report for 2011-03-10 is now available and can be found at: https://wiki.linaro.org/Platform/Android/Status/2011-03-10 The report is also reproduced in full below. Regards, Jamie. -- Linaro Release Manager | Platform Project Manager -- * Period: (20110303-20110309) * PM: JamieBennett <jamie.bennett(a)linaro.org> * Past reports : https://wiki.linaro.org/Platform/Android/Status == Key Points for wider discussion == * Framebuffer patches still need more discussion * Team is discovering and discussing Blueprints to work on this and next cycle. More input from other teams is encouraged. == Team Highlights == * Improvements to linaro-media-create (not merged yet) and basic validation of the Android images. * Working on delivering the first binary Linaro toolchain for Android. This will then be validated using existing validation tools and a report sent next week. * More work defining the Android LEB to clearly understand what needs to be delivered in our images. * Framebuffer and Power Management work continues with the former due to land next week. * Two Panda boards are destined for the team although there is a problem with one on them (see below). == Upcoming Deliverables == * None. == Risks / Issues == * '''HIGH IMPACT''': Kenjie Watanabe states that his company committed him to work in Linaro but he currently has no time for this. Noritsuna will discuss the problem with the president of his company next week (3 weeks). We have now been informed that they will get clearance to work on the Project in April. * '''HIGH IMPACT''': Currently the Linaro Android efforts are based on 2.6.37 but with Linaro moving to 2.6.38 and the upstream Android 2.6.38 kernel being available some rebasing efforts will be needed. John Stultz, Patrik Ryd and others need to discuss how this can be done in the smoothest way (3 weeks). Some amount of effort will be needed but that effort is unclear at this point. Will lower level after initial investigations if necessary. Tree still needs to be produced for any assessment can be made. * '''MEDIUM IMPACT''': Contribution agreements with Google for AOSP development still waiting to be approved for Alexander Sack and Patrik Ryd (1 week). * '''MEDIUM IMPACT''': Patriks Panda board is lost in the postal system atm. Sent by Mounir from IBM, Patrik is chasing tracking numbers (1 week). * '''MEDIUM IMPACT''': Patrik lost some time last week due to an internal project at ST-E. Need to monitor to ensure Patrik stays focused on Linaro. * '''LOW IMPACT''': jstultz lost some days last week due to sickness. He is focussing on kconfig work for Linaro atm. == Miscellaneous == * Wiki pages of note this week: * https://wiki.linaro.org/Platform/Android/CurrentProjects

14 years, 1 month

Notes and actions from the Infrastructure team meeting 2011-03-08

by James Westby

Hi, You can get all the information at https://wiki.linaro.org/Platform/Infrastructure/Meetings/2011-03-08 Thanks, James == Agenda == * Actions from last meeting * Team Status * AOB == Past Action items == * james_w to co-ordinate deployment of salgado's patchwork tree in his absence * james_w to email salgado about patch metrics * james_w to get deepti a machine to host jenkins * mabac to request reviews for some svammel changes, and review some code from other team members * salgado to send deployment docs to the patchwork RT ticket when ready * james_w to request status reports on Monday == Action Items == * james_w to co-ordinate deployment of salgado's patchwork tree in his absence * mabac to request reviews for some svammel changes, and review some code from other team members * salgado to send deployment docs to the patchwork RT ticket when ready * james_w to reassign CI spec and ask for workitems * mwhudson to add some people to https://launchpad.net/~linaro-android-builders * mwhudson to talk to plars about lava

14 years, 1 month

[PM] 09/03/2011 - Minutes for the Power Management WG weekly call

by Amit Kucheria

Hi All, The minutes of the power management weekly call can be found at : https://wiki.linaro.org/WorkingGroups/PowerManagement/Meetings/2011-03-09 Highlights: Discussion on Hotplug vs. scheduler tunable to hit retention Regards, Amit

14 years, 1 month

[REMINDER] Weekly Release Meeting 2011-03-10

by Jamie Bennett

Hi, The weekly Linaro Release Meeting will be held at 17:00 UTC tomorrow. The agenda for the meeting can be found at: https://wiki.linaro.org/Releases/WeeklyReleaseMeeting/2011-03-10 and previous action items were: * Mounir to investigate the status of the Panda display problem * Mounir to ask the kernel team to triage bugs at https://bugs.launchpad.net/linux-linaro If you have points to raise or bugs that need to be discussed please add them to the wiki page above. This meeting is for everyone to discuss issues that may affect the ability to showcase Linaro's efforts in the released images so please add anything to the agenda that you feel falls into this category. The agenda will change a little this week, we will have image reports for our target releases done by: * Ubuntu Desktop and others - Tom Gall * Linaro Android - Patrik Ryd (Jamie Bennett this week) The full agenda is: * Announcements - Jamie Bennett with time for others to announce * Action Item Review - Jamie Bennett chasing * Image Status - Tom Gall and Patrik Ryd * Bugs - Jamie Bennett chair, others discuss * Team release-related reports (any team-focused release topics) * Any Other Business (AOB) Regards, Jamie. -- Linaro Release Manager | Platform Project Manager

14 years, 1 month

[NOTES] Android Platform Team meeting 2011-03-09

by Jamie Bennett

Hi, The notes and actions for this weeks Android Platform Team meeting along with team activity reports are now available at: https://wiki.linaro.org/Platform/Android/Meetings/2011-03-09 = Actions Recorded = * jserv-- to produce a Blueprint at http://launchpad.net/linaro-android to capture pandroid fbdev investigations * patrikryd to confirm https://android-build.linaro.org/job/android-u8500href/ tarballs work and fix if necessary * jserv-- and jeremychang to split up Validation Blueprints * jserv-- and jeremychang to split up Linaro toolchain Blueprint * jserv-- and jeremychang to split up Linaro Evaluation Builds for Android Blueprint into board specific Blueprints * jeremychang to check with jstultz on the status of android_omap4_defconfig Regards, Jamie. -- Linaro Release Manager | Platform Project Manager

14 years, 1 month

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linaro-dev March 2011