linaro-dev October 2012

linaro-dev@lists.linaro.org

76 participants
108 discussions

by Viresh Kumar

Hi Andrey, Below is pull request for v7 of MP work, you can skip v6-resend pull request that i sent yesterday. Following are the main changes: - Based on v3.6-rc3 - per-task-load-average updated with v3 - applied Tixy's patch from fast-slow-cpu-dt-v1 to task-placement-v1 as they are somewhat related only. And so removed fast-slow-cpu-dt-v1 branch NOTE: Compile tested only -- viresh --------------->8----------------------------- The following changes since commit fea7a08acb13524b47711625eebea40a0ede69a0: Linux 3.6-rc3 (2012-08-22 13:29:06 -0700) are available in the git repository at: git://git.linaro.org/arm/big.LITTLE/mp.git big-LITTLE-MP-v7 for you to fetch changes up to 549b2d49de89f9454a933a32efb5825a076efd42: Merge branches 'per-cpu-thread-hotplug-v3-fixed', 'task-placement-v1', 'cpu-hotplug-get_online_cpus-v1', 'arm-asymmetric-support-v3-v3.6-rc1' and 'config-fragments' into big-LITTLE-MP-v7 (2012-08-24 09:24:14 +0530) ---------------------------------------------------------------- Ben Segall (1): sched: maintain per-rq runnable averages Jon Medhurst (6): configs: Initial core configs configs: Make CONFIG_MODULES part of linaro-base Merge branch 'config-core-3.4' into config-core-tracking configs: Replace CONFIG_PERF_COUNTERS with CONFIG_PERF_EVENTS configs: android: Enable FB_EARLYSUSPEND configs: android: Enable CONFIG_INPUT_UINPUT to get aidb working Jon Medhurst (Tixy) (1): sched: Use device-tree to provide fast/slow CPU list for HMP Morten Rasmussen (6): sched: Add ftrace events for entity load-tracking sched: entity load-tracking load_avg_ratio sched: load-tracking driven wakeup migration for HMP platforms sched: Forced migration of high load task on HMP platforms sched: Add HMP forced task migration ftrace event sched: Add missing cpus_allowed checks to HMP scheduler Paul E. McKenney (2): rcu: Use smp_hotplug_thread facility for RCUs per-CPU kthread hotplug: Fix UP bug in smpboot hotplug code Paul Turner (15): sched: track the runnable average on a per-task entitiy basis sched: aggregate load contributed by task entities on parenting cfs_rq sched: maintain the load contribution of blocked entities sched: add an rq migration call-back to sched_class sched: account for blocked load waking back up sched: aggregate total task_group load sched: compute load contribution by a group entity sched: normalize tg load contributions against runnable time sched: maintain runnable averages across throttled periods sched: replace update_shares weight distribution with per-entity computation sched: refactor update_shares_cpu() -> update_blocked_avgs() sched: update_cfs_shares at period edge sched: make __update_entity_runnable_avg() fast sched: implement usage tracking sched: introduce temporary FAIR_GROUP_SCHED dependency for load-tracking Ricardo Salveti de Araujo (8): configs: moving previous ubuntu.conf as ubuntu-minimal and creating a full ubuntu one configs: ubuntu: be compatible with the enforce script configs: ubuntu: disabling CODA_FS, seems to be broken atm configs: ubuntu: disabling CGROUPS as default Merge branch 'config-core-3.4' into config-core-tracking configs: ubuntu: updating configs for 3.5 configs: ubuntu: disabling CONFIG_MTD_NAND_NANDSIM=m, breaking build config: ubuntu: ATH6KL should be platform dependent Silas Boyd-Wickizer (4): Use get_online_cpus to avoid races involving CPU hotplug Use get_online_cpus to avoid races involving CPU hotplug Use get_online_cpus to avoid races involving CPU hotplug Use get_online_cpus to avoid races involving CPU hotplug Thomas Gleixner (6): rcu: Yield simpler kthread: Implement park/unpark facility smpboot: Provide infrastructure for percpu hotplug threads softirq: Use hotplug thread infrastructure watchdog: Use hotplug thread infrastructure infiniband: ehca: Use hotplug thread infrastructure Vincent Guittot (1): sched: cpu_power: enable ARCH_POWER Viresh Kumar (3): configs: Add config fragments for big LITTLE MP linaro/configs: Update big LITTLE MP fragment for task placement work Merge branches 'per-cpu-thread-hotplug-v3-fixed', 'task-placement-v1', 'cpu-hotplug-get_online_cpus-v1', 'arm-asymmetric-support-v3-v3.6-rc1' and 'config-fragments' into big-LITTLE-MP-v7 arch/arm/Kconfig | 29 + arch/arm/kernel/topology.c | 69 ++ arch/x86/kernel/cpuid.c | 5 + arch/x86/kernel/msr.c | 5 + drivers/hwmon/coretemp.c | 5 + drivers/hwmon/via-cputemp.c | 5 + drivers/infiniband/hw/ehca/ehca_irq.c | 253 ++-- drivers/infiniband/hw/ehca/ehca_irq.h | 6 +- include/linux/kthread.h | 11 +- include/linux/sched.h | 24 + include/linux/smpboot.h | 43 + include/trace/events/sched.h | 151 +++ kernel/Makefile | 3 +- kernel/cpu.c | 10 +- kernel/kthread.c | 185 ++- kernel/rcutree.c | 12 +- kernel/rcutree.h | 15 +- kernel/rcutree_plugin.h | 403 ++----- kernel/rcutree_trace.c | 3 +- kernel/sched/core.c | 11 + kernel/sched/debug.c | 39 +- kernel/sched/fair.c | 1111 ++++++++++++++--- kernel/sched/features.h | 2 +- kernel/sched/sched.h | 60 +- kernel/smpboot.c | 233 ++++ kernel/smpboot.h | 4 + kernel/softirq.c | 108 +- kernel/watchdog.c | 263 ++-- linaro/configs/android.conf | 33 + linaro/configs/big-LITTLE-MP.conf | 9 + linaro/configs/linaro-base.conf | 84 ++ linaro/configs/ubuntu-minimal.conf | 24 + linaro/configs/ubuntu.conf | 2133 +++++++++++++++++++++++++++++++++ 33 files changed, 4355 insertions(+), 996 deletions(-) create mode 100644 include/linux/smpboot.h create mode 100644 linaro/configs/android.conf create mode 100644 linaro/configs/big-LITTLE-MP.conf create mode 100644 linaro/configs/linaro-base.conf create mode 100644 linaro/configs/ubuntu-minimal.conf create mode 100644 linaro/configs/ubuntu.conf

11 years, 7 months

[RFC PATCH 0/2] sched: Load Balancing using Per-entity-Load-tracking

by preeti

Hi Guys, Can you please have a look at the below patchset? Your review comments are very necessary and valuable.Thanks in advance. > This patchset uses the per-entity-load-tracking patchset which will soon be > available in the kernel.It is based on the tip/master tree and the first 8 > latest patches of sched:per-entity-load-tracking alone have been imported to > the tree to avoid the complexities of task groups and to hold back the > optimizations of this patch for now. > > This patchset is an attempt to begin the integration of Per-entity-load- > metric for the cfs_rq,henceforth referred to as PJT's metric,with the load > balancer in a step wise fashion,and progress based on the consequences. > > The following issues have been considered towards this: > [NOTE:an x% task referred to in the logs and below is calculated over a > duty cycle of 10ms.] > > 1.Consider a scenario,where there are two 10% tasks running on a cpu.The > present code will consider the load on this queue to be 2048,while > using PJT's metric the load is calculated to be <1000,rarely exceeding this > limit.Although the tasks are not contributing much to the cpu load,they are > decided to be moved by the scheduler. > > But one could argue that 'not moving one of these tasks could throttle > them.If there was an idle cpu,perhaps we could have moved them'.While the > power save mode would have been fine with not moving the task,the > performance mode would prefer not to throttle the tasks.We could strive > to strike a balance by making this decision tunable with certain parameters. > This patchset includes such tunables.This issue is addressed in Patch[1/2]. > > 2.We need to be able to do this cautiously,as the scheduler code is too > complex.This patchset is an attempt to begin the integration of PJT's > metric with the load balancer in a step wise fashion,and progress based on > the consequences. > I dont intend to vary the parameters used by the load balancer.Some > parameters are however included anew to make decisions about including a > sched group as a candidate for load balancing. > > This patchset therefore has two primary aims. > Patch[1/2]: This patch aims at detecting short running tasks and > prevent their movement.In update_sg_lb_stats,dismiss a sched group > as a candidate for load balancing,if load calculated by PJT's metric > says that the average load on the sched_group <= 1024+(.15*1024). > This is a tunable,which can be varied after sufficient experiments. > > Patch[2/2]:In the current scheduler greater load would be analogous > to more number of tasks.Therefore when the busiest group is picked > from the sched domain in update_sd_lb_stats,only the loads of the > groups are compared between them.If we were to use PJT's metric,a > higher load does not necessarily mean more number of tasks.This > patch addresses this issue. > > 3.The next step towards integration should be in using the PJT's metric for > comparison between the loads of the busy sched group and the sched > group which has to pull the tasks,which happens in find_busiest_group. > --- > > Preeti U Murthy (2): > sched:Prevent movement of short running tasks during load balancing > sched:Pick the apt busy sched group during load balancing > > > kernel/sched/fair.c | 38 +++++++++++++++++++++++++++++++++++--- > 1 file changed, 35 insertions(+), 3 deletions(-) > > -- The links to PATCH[1/2] https://lkml.org/lkml/2012/10/12/13 PATCH[2/2] https://lkml.org/lkml/2012/10/12/11 Regards Preeti U Murthy

11 years, 7 months

[PATCH 0/4] cpuidle - sysfs preparation for multiple driver support

by Daniel Lezcano

The following patchset does some cleanup and prepares the place for the multiple driver support. We want to add an entry per cpu for the driver when the configuration defines the support for multiple cpuidle drivers. This patchset creates a single entry function for adding a cpuidle device to the sysfs where we will add the driver entry in the next patchset. In order to do that, the kobj handling is grouped in the sysfs.c file and the function prototype is changed. In any case, the patchset cleans up and groups the code but does not change the behavior, this is why it is submitted as a separate patchset rather than join it with the multiple drivers support. Daniel Lezcano (4): cpuidle - sysfs : change function parameter cpuidle - sysfs : move kobj initialization in the syfs file cpuidle - sysfs : change function name cpuidle - sysfs : move definition in the sysfs file drivers/cpuidle/cpuidle.c | 19 ++++++---------- drivers/cpuidle/cpuidle.h | 10 +++----- drivers/cpuidle/sysfs.c | 52 ++++++++++++++++++++++++++++++++------------- include/linux/cpuidle.h | 7 ------ 4 files changed, 48 insertions(+), 40 deletions(-) -- 1.7.5.4

11 years, 7 months

Agenda for 2012-10-17 posted

by Zach Pfeffer

The agenda for tomorrow's meeting has been posted here: https://wiki.linaro.org/Platform/Android/Meetings/2012-10-17 Please take a look, add any agenda items you'd like to talk about and add your status. See you tomorrow! -- 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

11 years, 7 months

Re: Re: [PATCH v4 2/3] devfreq: Add suspend and resume apis

by MyungJoo Ham

> On Monday 08 of October 2012 10:48:24 MyungJoo Ham wrote: > > > On 8 October 2012 03:31, Rafael J. Wysocki <rjw(a)sisk.pl> wrote: > > > > On Thursday 04 of October 2012 14:58:33 Rajagopal Venkat wrote: > > > >> Add devfreq suspend/resume apis for devfreq users. This patch > > > >> supports suspend and resume of devfreq load monitoring, required > > > >> for devices which can idle. > > > >> > > > >> Signed-off-by: Rajagopal Venkat <rajagopal.venkat(a)linaro.org> > > > >> Acked-by: MyungJoo Ham <myungjoo.ham(a)samsung.com> > > > > > > > > Well, I wonder if this may be tied in to the runtime PM framework, so that, > > > > for example, pm_runtime_suspend() will automatically suspend devfreq on > > > > success (and the runtime resume of the device will resume devfreq)? > > > > > > That's a good idea. If you agree, we can handle this as separate patch on > > > top this patchset. > > Sure. > > > I guess implementing the idea may be not so obvious; thus, seperating > > the patchset would be appropriate. > > > > When we implement the idea, we may need to implement at the > > pm_runtime core. Because devfreq->dev is a child of the target dev, not > > a parent, runtime-pm event of the target dev does not automatically > > invoke a cascaded action on the devfreq->dev. > > I'm not exactly sure what you mean, care to explain? When a device "p" creates devfreq, devfreq->dev->parent = p. And, devfreq's functions need to react to the "p"'s runtime-pm events. However, when "p"'s runtime-pm-suspend is being invoked, devfreq->dev's runtime-pm-suspend won't be automatically invoked. Thus, we will need a mechanism that invokes devfreq->dev's runtime-pm callbacks when p's runtime-pm is invoked. (at the runtime-pm core) Or A mechanism that one can notify others (including its children) when the one's runtime-pm is invoked. (probably at the runtime-pm core, too) Without such support, it appears that the current implementation (calling runtime-pm suspend/resume equivalent devfreq functions manually at device drivers) seems to be inevitable. Anyway, if devfreq->dev is a parent of "p", runtime-pm core will do the required task automatically; however, it isn't and I don't think it'd be appropriate. > > > Maybe either > > 1) capability to allow a child to monitor the power state of a parent > > (I remember Inki Dae once suggested to add notifiers at runtime-pm, but > > it seems to be not merged) > > or > > 2) letting runtime-pm be aware of devfreq > > (doesn't feel alright with this??) > > is required? > > I'm not a big fan of notifiers, so I'd prefer to avoid using them, if > possible. > > Thanks, > Rafael > > > -- > I speak only for myself. > Rafael J. Wysocki, Intel Open Source Technology Center. > Cheers, MyungJoo

11 years, 7 months

[PATCH] cpufreq:core: Fix printing of governor and driver name

by Viresh Kumar

Arrays for governer and driver name are of size CPUFREQ_NAME_LEN or 16. i.e. 15 bytes for name and 1 for trailing '\0'. When cpufreq driver print these names (for sysfs), it includes '\n' or ' ' in the fmt string and still passes length as CPUFREQ_NAME_LEN. If the driver or governor names are using all 15 fields allocated to them, then the trailing '\n' or ' ' will never be printed. And so commands like: root@linaro-developer# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver will print something like: cpufreq_foodrvroot@linaro-developer# Fix this by increasing print length by one character. Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- drivers/cpufreq/cpufreq.c | 6 +++--- include/linux/cpufreq.h | 2 ++ 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 021973b..db6e337 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -445,7 +445,7 @@ static ssize_t show_scaling_governor(struct cpufreq_policy *policy, char *buf) else if (policy->policy == CPUFREQ_POLICY_PERFORMANCE) return sprintf(buf, "performance\n"); else if (policy->governor) - return scnprintf(buf, CPUFREQ_NAME_LEN, "%s\n", + return scnprintf(buf, CPUFREQ_NAME_PLEN, "%s\n", policy->governor->name); return -EINVAL; } @@ -491,7 +491,7 @@ static ssize_t store_scaling_governor(struct cpufreq_policy *policy, */ static ssize_t show_scaling_driver(struct cpufreq_policy *policy, char *buf) { - return scnprintf(buf, CPUFREQ_NAME_LEN, "%s\n", cpufreq_driver->name); + return scnprintf(buf, CPUFREQ_NAME_PLEN, "%s\n", cpufreq_driver->name); } /** @@ -512,7 +512,7 @@ static ssize_t show_scaling_available_governors(struct cpufreq_policy *policy, if (i >= (ssize_t) ((PAGE_SIZE / sizeof(char)) - (CPUFREQ_NAME_LEN + 2))) goto out; - i += scnprintf(&buf[i], CPUFREQ_NAME_LEN, "%s ", t->name); + i += scnprintf(&buf[i], CPUFREQ_NAME_PLEN, "%s ", t->name); } out: i += sprintf(&buf[i], "\n"); diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index b60f6ba..fc4b785 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -22,6 +22,8 @@ #include <asm/div64.h> #define CPUFREQ_NAME_LEN 16 +/* Print length for names. Extra 1 space for accomodating '\n' in prints */ +#define CPUFREQ_NAME_PLEN (CPUFREQ_NAME_LEN + 1) /********************************************************************* -- 1.7.12.rc2.18.g61b472e

11 years, 7 months

Re: Re: [PATCH v4 2/3] devfreq: Add suspend and resume apis

by MyungJoo Ham

> On 8 October 2012 03:31, Rafael J. Wysocki <rjw(a)sisk.pl> wrote: > > On Thursday 04 of October 2012 14:58:33 Rajagopal Venkat wrote: > >> Add devfreq suspend/resume apis for devfreq users. This patch > >> supports suspend and resume of devfreq load monitoring, required > >> for devices which can idle. > >> > >> Signed-off-by: Rajagopal Venkat <rajagopal.venkat(a)linaro.org> > >> Acked-by: MyungJoo Ham <myungjoo.ham(a)samsung.com> > > > > Well, I wonder if this may be tied in to the runtime PM framework, so that, > > for example, pm_runtime_suspend() will automatically suspend devfreq on > > success (and the runtime resume of the device will resume devfreq)? > > That's a good idea. If you agree, we can handle this as separate patch on > top this patchset. I guess implementing the idea may be not so obvious; thus, seperating the patchset would be appropriate. When we implement the idea, we may need to implement at the pm_runtime core. Because devfreq->dev is a child of the target dev, not a parent, runtime-pm event of the target dev does not automatically invoke a cascaded action on the devfreq->dev. Maybe either 1) capability to allow a child to monitor the power state of a parent (I remember Inki Dae once suggested to add notifiers at runtime-pm, but it seems to be not merged) or 2) letting runtime-pm be aware of devfreq (doesn't feel alright with this??) is required? > > > > > Rafael > > > > > >> --- > >> drivers/devfreq/devfreq.c | 28 ++++++++++++++++++++++++++++ > >> drivers/devfreq/governor.h | 2 ++ > >> drivers/devfreq/governor_simpleondemand.c | 9 +++++++++ > >> include/linux/devfreq.h | 12 ++++++++++++ > >> 4 files changed, 51 insertions(+) > >> > >> diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c > >> index 41a4099..63e075e 100644 > >> --- a/drivers/devfreq/devfreq.c > >> +++ b/drivers/devfreq/devfreq.c > >> @@ -428,6 +428,34 @@ int devfreq_remove_device(struct devfreq *devfreq) > >> } > >> EXPORT_SYMBOL(devfreq_remove_device); > >> > >> +/** > >> + * devfreq_suspend_device() - Suspend devfreq of a device. > >> + * @devfreq the devfreq instance to be suspended > >> + */ > >> +int devfreq_suspend_device(struct devfreq *devfreq) > >> +{ > >> + if (!devfreq) > >> + return -EINVAL; > >> + > >> + return devfreq->governor->event_handler(devfreq, > >> + DEVFREQ_GOV_SUSPEND, NULL); > >> +} > >> +EXPORT_SYMBOL(devfreq_suspend_device); > >> + > >> +/** > >> + * devfreq_resume_device() - Resume devfreq of a device. > >> + * @devfreq the devfreq instance to be resumed > >> + */ > >> +int devfreq_resume_device(struct devfreq *devfreq) > >> +{ > >> + if (!devfreq) > >> + return -EINVAL; > >> + > >> + return devfreq->governor->event_handler(devfreq, > >> + DEVFREQ_GOV_RESUME, NULL); > >> +} > >> +EXPORT_SYMBOL(devfreq_resume_device); > >> + > >> static ssize_t show_governor(struct device *dev, > >> struct device_attribute *attr, char *buf) > >> { > >> diff --git a/drivers/devfreq/governor.h b/drivers/devfreq/governor.h > >> index bb3aff3..26432ac 100644 > >> --- a/drivers/devfreq/governor.h > >> +++ b/drivers/devfreq/governor.h > >> @@ -22,6 +22,8 @@ > >> #define DEVFREQ_GOV_START 0x1 > >> #define DEVFREQ_GOV_STOP 0x2 > >> #define DEVFREQ_GOV_INTERVAL 0x3 > >> +#define DEVFREQ_GOV_SUSPEND 0x4 > >> +#define DEVFREQ_GOV_RESUME 0x5 > >> > >> /* Caution: devfreq->lock must be locked before calling update_devfreq */ > >> extern int update_devfreq(struct devfreq *devfreq); > >> diff --git a/drivers/devfreq/governor_simpleondemand.c b/drivers/devfreq/governor_simpleondemand.c > >> index cf94218..a8ba78c 100644 > >> --- a/drivers/devfreq/governor_simpleondemand.c > >> +++ b/drivers/devfreq/governor_simpleondemand.c > >> @@ -104,6 +104,15 @@ int devfreq_simple_ondemand_handler(struct devfreq *devfreq, > >> case DEVFREQ_GOV_INTERVAL: > >> devfreq_interval_update(devfreq, (unsigned int *)data); > >> break; > >> + > >> + case DEVFREQ_GOV_SUSPEND: > >> + devfreq_monitor_suspend(devfreq); > >> + break; > >> + > >> + case DEVFREQ_GOV_RESUME: > >> + devfreq_monitor_resume(devfreq); > >> + break; > >> + > >> default: > >> break; > >> } > >> diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h > >> index 9cdffde..ee243a3 100644 > >> --- a/include/linux/devfreq.h > >> +++ b/include/linux/devfreq.h > >> @@ -158,6 +158,8 @@ extern struct devfreq *devfreq_add_device(struct device *dev, > >> const struct devfreq_governor *governor, > >> void *data); > >> extern int devfreq_remove_device(struct devfreq *devfreq); > >> +extern int devfreq_suspend_device(struct devfreq *devfreq); > >> +extern int devfreq_resume_device(struct devfreq *devfreq); > >> > >> /* Helper functions for devfreq user device driver with OPP. */ > >> extern struct opp *devfreq_recommended_opp(struct device *dev, > >> @@ -211,6 +213,16 @@ static int devfreq_remove_device(struct devfreq *devfreq) > >> return 0; > >> } > >> > >> +static int devfreq_suspend_device(struct devfreq *devfreq) > >> +{ > >> + return 0; > >> +} > >> + > >> +static int devfreq_resume_device(struct devfreq *devfreq) > >> +{ > >> + return 0; > >> +} > >> + > >> static struct opp *devfreq_recommended_opp(struct device *dev, > >> unsigned long *freq, u32 flags) > >> { > >> > > -- > > I speak only for myself. > > Rafael J. Wysocki, Intel Open Source Technology Center. > > > > -- > Regards, > Rajagopal > > > > > > >

11 years, 7 months

ARM A9 oprofile

by Dmitry Antipov

Hello Ming, could you please give some pointers to observe an overall status of oprofile support on ARM A9 cores? IIUC, now it doesn't work without oprofile.timer=1 kernel option, at least for Linus' tree; searching gives a lot of discussion/patches fragments and similar stuff, but I was unable to find a complete patch/git tree/whatever else to try. Thanks in advance, Dmitry

11 years, 7 months

[PATCH] cpufreq: core: Fix typo in comment describing show_bios_limit()

by Viresh Kumar

show_bios_limit is mistakenly written as show_scaling_driver in a comment describing purpose of show_bios_limit() routine. Fix it. Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- drivers/cpufreq/cpufreq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index fb8a527..021973b 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -581,7 +581,7 @@ static ssize_t show_scaling_setspeed(struct cpufreq_policy *policy, char *buf) } /** - * show_scaling_driver - show the current cpufreq HW/BIOS limitation + * show_bios_limit - show the current cpufreq HW/BIOS limitation */ static ssize_t show_bios_limit(struct cpufreq_policy *policy, char *buf) { -- 1.7.12.rc2.18.g61b472e

11 years, 7 months

Add AArch64 support into util-linux

by Marcin Juszkiewicz

Attached patch fixed build problem when util-linux is built for AArch64 architecture.

11 years, 7 months

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linaro-dev October 2012