linaro-dev January 2012

linaro-dev@lists.linaro.org

125 participants
124 discussions

by Zach Pfeffer

So I've been talking to our customers (10 at last count) and they really like what we're doing. There are three things that are getting in their way: linaro-android-media-create GCC4.6 frequent kernel upgrades They love our builds, but they'd really like it if they could get stock AOSP builds for their boards on stable kernels that they can work with using fastboot that have been CI tested and QA'd. I'm not advocating for the wholesale destruction of our current way of life, tip kernels, tip toolchains, linaro-android-media-create, but I would like to move in a direction that gives our users what they want. -- 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

12 years, 2 months

[PATCH v6 0/4] 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. Based upon discussions following patches are dropped in this version: Exynos: Add CONFIG_EXYNOS4 Macro to EXYNOS4 based boards Exynos: Clock.c: Replace exynos4 prefix with exynos SMDK5250: enable device tree support is squashed with EXYNOS: Add SMDK5250 board support Chander Kashyap (4): Exynos: Clock.c: Use CONFIG_SYS_CLK_FREQ macro ARM: EXYNOS: Add support for Exynos5 based SoCs EXYNOS: Add SMDK5250 board support EXYNOS: SMDK5250: Add MMC SPL support MAINTAINERS | 1 + arch/arm/cpu/armv7/exynos/clock.c | 214 ++++++++++- arch/arm/include/asm/arch-exynos/clock.h | 326 ++++++++++++++++ arch/arm/include/asm/arch-exynos/cpu.h | 35 ++- arch/arm/include/asm/arch-exynos/dmc.h | 146 +++++++ arch/arm/include/asm/arch-exynos/gpio.h | 99 +++++- arch/arm/include/asm/arch-exynos/tzpc.h | 52 +++ board/samsung/smdk5250/Makefile | 67 ++++ board/samsung/smdk5250/clock_init.c | 202 ++++++++++ board/samsung/smdk5250/dmc_init.c | 508 +++++++++++++++++++++++++ board/samsung/smdk5250/lowlevel_init.S | 96 +++++ board/samsung/smdk5250/mmc_boot.c | 58 +++ board/samsung/smdk5250/setup.h | 353 +++++++++++++++++ board/samsung/smdk5250/smdk5250.c | 152 ++++++++ board/samsung/smdk5250/tools/mkexynos_image.c | 117 ++++++ board/samsung/smdk5250/tzpc_init.c | 48 +++ boards.cfg | 1 + include/configs/s5pc210_universal.h | 1 + include/configs/smdk5250.h | 202 ++++++++++ include/configs/trats.h | 1 + 20 files changed, 2662 insertions(+), 17 deletions(-) create mode 100644 arch/arm/include/asm/arch-exynos/dmc.h create mode 100644 arch/arm/include/asm/arch-exynos/tzpc.h create mode 100644 board/samsung/smdk5250/Makefile create mode 100644 board/samsung/smdk5250/clock_init.c create mode 100644 board/samsung/smdk5250/dmc_init.c create mode 100644 board/samsung/smdk5250/lowlevel_init.S create mode 100644 board/samsung/smdk5250/mmc_boot.c create mode 100644 board/samsung/smdk5250/setup.h create mode 100644 board/samsung/smdk5250/smdk5250.c create mode 100644 board/samsung/smdk5250/tools/mkexynos_image.c create mode 100644 board/samsung/smdk5250/tzpc_init.c create mode 100644 include/configs/smdk5250.h -- 1.7.5.4

12 years, 2 months

Re: potentially bug list

by Mario

I forgot to say that I've installed Linaro Ubuntu Desktop 3.1.1.8 on a Pandaboard ES. 2012/1/31 Mario <marietto2008(a)gmail.com>: > Hello. > > Since I'm not experienced,I would like to talk with you about this > potentially bug list : > > 1) I can't use another desktop manager except Unity. > > I made 3 modifications to accomplish the task,but with no success : > > a) I ran update-alternatives --config x-session manager and I chosen > lxde or xfce as default DM > b) I modified the file : ~/.xinitrc adding exec startlxde/xfce4 > c) When Unity starts automatically,I choose lxde or xfce4,but my > choice is not remembered for the next login. > > 2) I chosen to use another DM because some time after having used > Linaro,something hasn't worked anymore and I have started to see > nothing. Unity icons/menus are disappeared. > > 3) I think there are graphic problems,the mouse pointer does not > disappear correcly. On the picture attached you can see three > pointers. > > -- > Mario. -- Mario.

12 years, 2 months

External tarballs can now be unpacked into a build

by James Tunnicliffe

Hi, https://wiki.linaro.org/Platform/Android/LinaroAndroidBuildService has been updated with these instructions about a new build option: EXTERNAL_TARBALL Use to request that the build system fetch an archive from the location that you set EXTERNAL_TARBALL to and unpack it into build/external_tarballs (build is the build root directory. This exact path can be written as $BUILD_SCRIPT_ROOT/../../build/external_tarballs). Multiple archives can be requested, separated by ";", e.g. EXTERNAL_TARBALL="http://foo.com/ball1.tar.gz;http://foo.com/ball2.tar.bz2" There has been some discussion about if the path that is being unpacked to is easy to use. We could modify the build scripts so we either set an environment variable to point to where we unpack to ($EXT_TARBALL_DIR) or have a fixed path in /tmp that we soft link from (/tmp/external_tarballs). If you have a strong opinion, please let me know. Thanks, -- James Tunnicliffe

12 years, 2 months

[PATCH 1/3] percpu: use ZERO_SIZE_PTR / ZERO_OR_NULL_PTR

by Dmitry Antipov

Fix pcpu_alloc() to return ZERO_SIZE_PTR if requested size is 0; fix free_percpu() to check passed pointer with ZERO_OR_NULL_PTR. Signed-off-by: Dmitry Antipov <dmitry.antipov(a)linaro.org> --- mm/percpu.c | 16 +++++++++++----- 1 files changed, 11 insertions(+), 5 deletions(-) diff --git a/mm/percpu.c b/mm/percpu.c index f47af91..e903a19 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -702,7 +702,8 @@ static struct pcpu_chunk *pcpu_chunk_addr_search(void *addr) * Does GFP_KERNEL allocation. * * RETURNS: - * Percpu pointer to the allocated area on success, NULL on failure. + * ZERO_SIZE_PTR if @size is zero, percpu pointer to the + * allocated area on success or NULL on failure. */ static void __percpu *pcpu_alloc(size_t size, size_t align, bool reserved) { @@ -713,7 +714,10 @@ static void __percpu *pcpu_alloc(size_t size, size_t align, bool reserved) unsigned long flags; void __percpu *ptr; - if (unlikely(!size || size > PCPU_MIN_UNIT_SIZE || align > PAGE_SIZE)) { + if (unlikely(!size)) + return ZERO_SIZE_PTR; + + if (unlikely(size > PCPU_MIN_UNIT_SIZE || align > PAGE_SIZE)) { WARN(true, "illegal size (%zu) or align (%zu) for " "percpu allocation\n", size, align); return NULL; @@ -834,7 +838,8 @@ fail_unlock_mutex: * Does GFP_KERNEL allocation. * * RETURNS: - * Percpu pointer to the allocated area on success, NULL on failure. + * ZERO_SIZE_PTR if @size is zero, percpu pointer to the + * allocated area on success, NULL on failure. */ void __percpu *__alloc_percpu(size_t size, size_t align) { @@ -856,7 +861,8 @@ EXPORT_SYMBOL_GPL(__alloc_percpu); * Does GFP_KERNEL allocation. * * RETURNS: - * Percpu pointer to the allocated area on success, NULL on failure. + * ZERO_SIZE_PTR if @size is zero, percpu pointer to the + * allocated area on success or NULL on failure. */ void __percpu *__alloc_reserved_percpu(size_t size, size_t align) { @@ -917,7 +923,7 @@ void free_percpu(void __percpu *ptr) unsigned long flags; int off; - if (!ptr) + if (unlikely(ZERO_OR_NULL_PTR(ptr))) return; kmemleak_free_percpu(ptr); -- 1.7.7.6

12 years, 2 months

Initial list of Blueprints for 12.02, from the Developer Platform Team and Android Team

by Zach Pfeffer

Actually including linaro-android and modifying the subject a little... On 30 January 2012 22:24, Zach Pfeffer <zach.pfeffer(a)linaro.org> wrote: > Linaro Android 12.02 is also ready to roll: > > https://launchpad.net/linaro-android/+milestone/12.02 > > We're generally working through the issues from the last cycle listed > in the 12.01 spreadsheet entry with a distinct Snowball bent this > cycle - since we're trying and get Google Hangouts working on it. For > the future, we'll generally put a heavy emphasis on working to make > all features green. > > The test sheets are here: > > Versatile Express A9 > https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AnpUtxWjZbP9dENmW… > > iMX53 > https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadHlNN… > > Panda > https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadHFPb… > > Snowball > https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadHJoV… > > Origen > https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadHJXV… > > booya > > On 30 January 2012 21:21, Ricardo Salveti <ricardo.salveti(a)linaro.org> wrote: >> Hi guys, >> >> As we're almost done with 12.02 planning, I'd like to share the >> current blueprints we intend to work during the 12.02 cycle: >> https://launchpad.net/linaro-dev-platform/+milestone/12.02 >> >> I know this is a quite short cycle, as we'll have the Linaro Connect, >> Android Builders and ELC, but I really hope to get most of the >> blueprints done during Connect's hacking sessions. >> >> Some interesting topics we'll cover this month: >> * Adding the USB-Host enablement test cases at LAVA >> * Start testing and validating the daily Linaro Native and Cross GCC packages >> * Enable ARMHF Precise based builds >> * Update XBMC to the latest 11.0 Beta release (currently Beta 2) >> * Sysroot build automation >> * Backporting of Unity 5, bringing the latest development from the GWG >> * Finalizing the Cross Buildd with Multi-Arch support >> >> And a few other bug fixes :-) >> >> Hope you enjoy ;-) >> >> Cheers, >> -- >> Ricardo Salveti de Araujo >> >> _______________________________________________ >> linaro-dev mailing list >> linaro-dev(a)lists.linaro.org >> http://lists.linaro.org/mailman/listinfo/linaro-dev > > > > -- > 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 -- 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

12 years, 2 months

Initial list of Blueprints for 12.02, from the Developer Platform Team

by Ricardo Salveti

Hi guys, As we're almost done with 12.02 planning, I'd like to share the current blueprints we intend to work during the 12.02 cycle: https://launchpad.net/linaro-dev-platform/+milestone/12.02 I know this is a quite short cycle, as we'll have the Linaro Connect, Android Builders and ELC, but I really hope to get most of the blueprints done during Connect's hacking sessions. Some interesting topics we'll cover this month: * Adding the USB-Host enablement test cases at LAVA * Start testing and validating the daily Linaro Native and Cross GCC packages * Enable ARMHF Precise based builds * Update XBMC to the latest 11.0 Beta release (currently Beta 2) * Sysroot build automation * Backporting of Unity 5, bringing the latest development from the GWG * Finalizing the Cross Buildd with Multi-Arch support And a few other bug fixes :-) Hope you enjoy ;-) Cheers, -- Ricardo Salveti de Araujo

12 years, 2 months

[PATCH 3/3] module: use ZERO_OR_NULL_PTR allocation pointer checking

by Dmitry Antipov

Use ZERO_OR_NULL_PTR allocation pointer checking where allocation function may return ZERO_SIZE_PTR. Signed-off-by: Dmitry Antipov <dmitry.antipov(a)linaro.org> --- kernel/module.c | 12 ++++++------ 1 files changed, 6 insertions(+), 6 deletions(-) diff --git a/kernel/module.c b/kernel/module.c index 2c93276..5183f91 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -438,7 +438,7 @@ static int percpu_modalloc(struct module *mod, } mod->percpu = __alloc_reserved_percpu(size, align); - if (!mod->percpu) { + if (unlikely(ZERO_OR_NULL_PTR(mod->percpu))) { printk(KERN_WARNING "%s: Could not allocate %lu bytes percpu data\n", mod->name, size); @@ -572,7 +572,7 @@ EXPORT_TRACEPOINT_SYMBOL(module_get); static int module_unload_init(struct module *mod) { mod->refptr = alloc_percpu(struct module_ref); - if (!mod->refptr) + if (unlikely(ZERO_OR_NULL_PTR(mod->refptr))) return -ENOMEM; INIT_LIST_HEAD(&mod->source_list); @@ -2322,14 +2322,14 @@ static void dynamic_debug_remove(struct _ddebug *debug) void * __weak module_alloc(unsigned long size) { - return size == 0 ? NULL : vmalloc_exec(size); + return vmalloc_exec(size); } static void *module_alloc_update_bounds(unsigned long size) { void *ret = module_alloc(size); - if (ret) { + if (likely(!ZERO_OR_NULL_PTR(ret))) { mutex_lock(&module_mutex); /* Update module bounds. */ if ((unsigned long)ret < module_addr_min) @@ -2638,7 +2638,7 @@ static int move_module(struct module *mod, struct load_info *info) * leak. */ kmemleak_not_leak(ptr); - if (!ptr) + if (unlikely(ZERO_OR_NULL_PTR(ptr))) return -ENOMEM; memset(ptr, 0, mod->core_size); @@ -2652,7 +2652,7 @@ static int move_module(struct module *mod, struct load_info *info) * after the module is initialized. */ kmemleak_ignore(ptr); - if (!ptr && mod->init_size) { + if (unlikely(ZERO_OR_NULL_PTR(ptr)) && mod->init_size) { module_free(mod, mod->module_core); return -ENOMEM; } -- 1.7.7.6

12 years, 2 months

Linaro Audio development ideas for 12.02 and beyond

by Kurt Taylor

Hi all, Here is a brain dump for some things I see on the horizon for audio work. Is this complete? Absolutely not. This is meant to be a place to capture and refine ideas before creating cards and/or blueprints for them. In other words, this should compliment the existing work and backlog already in LP. https://wiki.linaro.org/KurtTaylor/AudioBacklog Please edit or send any comments to me. Thanks! -- Kurt Taylor (irc krtaylor) Linaro Multimedia Linaro.org <http://www.linaro.org/>* **│ *Open source software for ARM SoCs Follow *Linaro: *Facebook <http://www.facebook.com/pages/Linaro> | Twitter<http://twitter.com/#%21/linaroorg>| Blog <http://www.linaro.org/linaro-blog/>

12 years, 2 months

Linaro Release 12.01 Postmortem Summary

by David Zinman

Greeting, Here is the postmortem and lessons learned for Linaro's first release for 2012. https://wiki.linaro.org/Cycles/1201/Release/Review Highlights and Key Successes ============================ The Ubuntu development platform team has delivered Ubuntu TV fully accelerated on a PandaBoard with Ubuntu LEB and the Ubuntu TV UI and XBMC also for PandaBoard. http://www.youtube.com/watch?feature=player_embedded&v=uQMOETMZA5Y The members demonstration was very successful with the graphics WG, landing teams, verification team, platform teams and the Igloo community all contributing some very fine achievements to the effort. Internal communications have been getting better and there is now a weekly sync between the platform groups and the working groups that is similar to the platform - landing team syncs. Each team brings a high priority issue or but to the table in order to find a plan for resolution. Postmortem and Lessons Learned ============================== This cycle seemed to present a challenge to most of the teams to stay focused on the delivery, There was no release from the Power Management group, and output was down for the Multimedia, Graphics and Platform teams. An issue here is that some release procedures are not being followed by some of the teams. An important issue that came up this cycle is that platform teams are requesting the source code for binary blobs. At integration, when an issue has been found, the path to the person that can fix and regenerate the binary blob is too long to actually fit the integration into one cycle. Add to this the requirement to use kernels and toolchains that are not aligned with the binary blobs and a conflict is created between development and schedule. Some of the lessons learned that came out of the cycle are: * There needs to be offspring knowledge within the infrastructure. The resource that had this domain knowledge is no longer with Linaro. To be effective, this knowledge should be brought in house again. * Listen to community users and incorporate useful information and go to people directly to get their reviews. * Need to become better at declaring scope which has good probability to be delivered at the beginning of the cycle, rather than declaring all pieces of work that we want to work upon and shed items which are impeded on the way. Impediments should be highlighted early on to get resolved. -- David Zinman Linaro Release Manager | Project Manager Linaro.org | Open source software for ARM SoCs

12 years, 3 months

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linaro-dev January 2012