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[PATCH] Modify for Android build system.

by kejun.zhou

From: "kejun.zhou" <dp583(a)stebjsxu0119.(none)> Signed-off-by: kejun.zhou <kejun.zhou(a)linaro.org> --- Android.mk | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/Android.mk b/Android.mk index 5053e7d..b296974 100644 --- a/Android.mk +++ b/Android.mk @@ -1 +1,22 @@ include $(call all-subdir-makefiles) + +include $(CLEAR_VARS) +CPUFREQ := cpufreq_01.sh cpufreq_02.sh cpufreq_03.sh cpufreq_04.sh cpufreq_05.sh cpufreq_06.sh cpufreq_07.sh cpufreq_08.sh cpufreq_09.sh + +CPUHOTPLUG := cpuhotplug_01.sh cpuhotplug_02.sh cpuhotplug_03.sh cpuhotplug_04.sh cpuhotplug_05.sh cpuhotplug_06.sh cpuhotplug_07.sh cpuhotplug_08.sh 1_sanity_check.sh z_sanity_check.sh + +CPUIDLE := cpuidle_01.sh cpuidle_02.sh cpuidle_03.sh cpuidle_killer + +INCLUDE := functions.sh suspend.sh thermal_functions.sh + +SCHED_MC := sched_01.sh sched_02.sh sched_03.sh sched_04.sh + +SUSPEND := suspend_01.sh suspend_02.sh suspend_03.sh suspend_04.sh suspend_05.sh suspend_06.sh + +THERMAL := thermal_01.sh thermal_02.sh thermal_03.sh thermal_04.sh thermal_05.sh thermal_06.sh + +UTILS := cpuburn cpucycle heat_cpu nanosleep + +systemtarball: $(CPUFREQ) $(CPUHOTPLUG) $(CPUIDLE) $(INCLUDE) $(SCHED_MC) $(SUSPEND) $(THERMAL) $(UTILS) + + -- 1.7.10

13 years, 4 months

What happened on KVM in Q1.12

by Michael Hope

Thought I'd send out an email on what progress was made on KVM last quarter. The Linaro platform and toolchain groups did quite a bit of integration work to package and polish the different components to make it quicker to get going on KVM. You can now download pre-built versions of the boot wrapper, QEMU, kernel, and root file system; use linaro-image tools to create a host and guest; and then spin both up inside a Fast Model. There's more information including versions used and links off at: https://wiki.linaro.org/WorkingGroups/ToolChain/Outputs/KVMIntegration There's still much to be done. The current focus is helping the upstream developers (Hi Christoffer!) get the patch set up into kvm-next. -- Michael

13 years, 4 months

PATCH: Initial Power and Voltage domain support for powerdebug

by eric van tassell

subject line corrected as advised. Thanks. -evt ---------- Forwarded message ---------- From: eric van tassell <evttxl(a)gmail.com> Date: Tue, Jun 12, 2012 at 6:35 PM Subject: RFC: Initial Power and Voltage domain support for powerdebug To: linaro-dev(a)lists.linaro.org + all written in usermode + no new proc files + configuration based on text file so easy to adapt to the non-omap proletarians + gui alignment still needs work + sample config files for PD and VDD in the patch but lots of registers and domains still need to be added + same code does power and voltage domains + diff attached + screenshots attached -- - evt (Eric van Tassell) twitter: evt_texelsoft linked-in: linkedin.com/in/evttxl -- - evt (Eric van Tassell) twitter: evt_texelsoft linked-in: linkedin.com/in/evttxl

13 years, 4 months

[PATCH] When building a XIP kernel, use physical memory as scratch space instead since we're probably running of a read-only medium.

by Wallace Wadge

Signed-off-by: Wallace Wadge <wwadge(a)gmail.com> --- arch/arm/mm/proc-v7.S | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index f1c8486..50b4f03 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -170,7 +170,11 @@ __v7_ca15mp_setup: mcreq p15, 0, r0, c1, c0, 1 #endif __v7_setup: +#ifdef CONFIG_XIP_KERNEL + ldr r12, =CONFIG_PHYS_OFFSET @ the local stack, use physical memory here. +#else adr r12, __v7_setup_stack @ the local stack +#endif stmia r12, {r0-r5, r7, r9, r11, lr} bl v7_flush_dcache_all ldmia r12, {r0-r5, r7, r9, r11, lr} -- 1.7.8.3

13 years, 4 months

Re: [RFC] tmp.perf/core branch with event_name changes and some more

by Dmitry Antipov

On 06/12/2012 09:05 PM, Arnaldo Carvalho de Melo wrote: > Could you please check out if my tmp.perf/core branch fixes the > problems reported lately about event name mismatches from perf.data > files collected in other machines, etc. As of a8dfce8b37b2e0d216860191cd50fde501eeb036, perf sched replay doesn't work because (perf_evlist__set_tracepoints_handlers): ... err = trace_event__id(assocs[i].name); <-- err is host id, not from perf.data if (err < 0) goto out; evsel = perf_evlist__find_tracepoint_by_id(evlist, err); <-- oops! ... Assuming event names are set, can we just lookup by name? Dmitry

13 years, 4 months

Linaro Release 12.05 Postmortem Summary

by David Zinman

Regretfully this summary is very late. The Linaro 12.05 delivery cycle was fast and furious with Connect Q2.12, end of quarter and delivery all occurring in the same week. During this 2012.05 Linaro Connect, much of the effort was focused on: * ARM big.LITTLE implementation and testing * Performance improvements * Linaro-linux baseline * Release process streamlining Delivery highlights can be seen at http://www.linaro.org/downloads/1205#tab1 Platform Blueprints ---------------------------- The number of blueprints that missed the cycle: Android 18 out of 30 Developer Platform 6 out of 18 Infrastructure 5 out of 10 Lava 5 out of 18 Total: 34 out of 76 45% of blueprints scheduled for this cycle were not delivered. * Not included is data from working groups and landing teams Source: https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AjEaTwrvj1bidDBIM… Roadmap End Of Quarter ------------------------------------- Android - 5 Cards, 5 Delivered Dev Platform - 5 Cards, 3 Delivered Graphics WG - 3 Cards, 3 Delivered Kernel WG - 4 Cards, 3 Delivered LAVA - 3 Cards, 2 Delivered Multimedia WG - 3 Cards, 1 Delivered OCTO - 2 Cards, 2 Delivered Power Management WG - 5 Cards, 5 Delivered Total 29 Cards, 24 delivered or probably delivered. Source: https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AmTRRvye9pnjdGJaV… -- David Zinman Linaro Release Manager | Project Manager Linaro.org | Open source software for ARM SoCs

13 years, 4 months

[RFC 1/4] cpuidle: define the enter function in the driver structure

by Daniel Lezcano

We have the state index passed as parameter to the 'enter' function. Most of the drivers assign their 'enter' functions several times in the cpuidle_state structure, as we have the index, we can delegate to the driver to handle their own callback array. That will have the benefit of removing multiple lines of code in the different drivers. In order to smoothly modify the driver, the 'enter' function are in the driver structure and in the cpuidle state structure. That will let the time to modify the different drivers one by one. So the 'cpuidle_enter' function checks if the 'enter' callback is assigned in the driver structure and use it, otherwise it invokes the 'enter' assigned to the cpuidle_state. Signed-off-by: Daniel Lezcano <daniel.lezcano(a)linaro.org> --- drivers/cpuidle/cpuidle.c | 4 +++- include/linux/cpuidle.h | 1 + 2 files changed, 4 insertions(+), 1 deletions(-) diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index d90519c..155dee7 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -46,7 +46,9 @@ static inline int cpuidle_enter(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { struct cpuidle_state *target_state = &drv->states[index]; - return target_state->enter(dev, drv, index); + + return drv->enter(dev, drv, index) ? drv->enter(dev, drv, index) : + target_state->enter(dev, drv, index); } static inline int cpuidle_enter_tk(struct cpuidle_device *dev, diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 6c26a3d..d82e169 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -130,6 +130,7 @@ struct cpuidle_driver { struct cpuidle_state states[CPUIDLE_STATE_MAX]; int state_count; int safe_state_index; + int (*enter)(struct cpuidle_device *, struct cpuidle_driver *, int); }; #ifdef CONFIG_CPU_IDLE -- 1.7.5.4

13 years, 4 months

[RFC 0/4] ARM: topology: set the capacity of each cores for big.LITTLE

by Vincent Guittot

This patchset creates an arch_scale_freq_power function for ARM, which is used to set the relative capacity of each core of a big.LITTLE system. Vincent Guittot (4): ARM: topology: Add arch_scale_freq_power function ARM: topology: factorize the update of sibling masks ARM: topology: Update cpu_power according to DT information sched: cpu_power: enable ARCH_POWER arch/arm/include/asm/topology.h | 2 + arch/arm/kernel/topology.c | 203 +++++++++++++++++++++++++++++++++++---- kernel/sched/features.h | 2 +- 3 files changed, 185 insertions(+), 22 deletions(-) -- 1.7.9.5

13 years, 4 months

Kernel not booting with Linaro GCC?

by Michael Hope

There's an interaction between Linaro GCC or FSF GCC 4.7 and Linux kernels before 3.2 which causes the kernel to halt straight after showing 'Uncompressing Linux'. The question comes up every couple of months so I've blogged about it: http://seabright.co.nz/2012/06/11/kernel-not-booting-with-linaro-gcc/ """ Is your ARM Linux kernel not booting when building with Linaro GCC or FSF GCC 4.7? Does it halt shortly after showing ‘Uncompressing Linux’? You may have run into an interaction between older kernels and the new unaligned access support in GCC. This affects Linaro GCC from 4.6-2011.11 onwards, GCC from 4.7.0 on, and kernels earlier than 3.2 including the Galaxy Nexus Icecream Sandwich release. The work-around is to add -mno-unaligned-access to KBUILD_CFLAGS in the top level kernel Makefile or to backport 8428e84d42179c2a00f5f6450866e70d802d1d05 from the current kernel tree. ARMv6K and later processors have hardware support for doing unaligned loads and stores which is faster than the old byte-by-byte/recombine that was done in software. Later versions of GCC use this to do quicker loads when working on known unaligned data, such as when working on a protocol buffer or a packed structure. The CPU can be configured to trap on unaligned access. This trap is off at reset, but pre 3.2 kernels turn this on during the initial boot. An interaction between -fconserve-stack and -munaligned-access on a char buffer lead to an unaligned access, which causes a trap, which causes the kernel to halt. This does not affect userspace programs as they run with the trap turned off. """ -- Michael

13 years, 4 months

[REMINDER] Linaro 12.06 dates

by David Zinman

Release Dates and Deliveries ======================== Toolchain June 14 WG/LT's June 21 12.06 RC's June 25 12.06 Release June 28 -- David Zinman Linaro Release Manager | Project Manager Linaro.org | Open source software for ARM SoCs

13 years, 4 months

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