On 19 November 2012 22:08, Vincent Guittot wrote:
> The nr_busy_cpus field of the sched_group_power is sometime different from 0
> whereas the platform is fully idle. This serie fixes 3 use cases:
> - when the SCHED softirq is raised on an idle core for idle load balance but
>the platform doe
On 19 November 2012 22:44, Andrey Konovalov wrote:
> I won't pull the big-LITTLE-MP-master-v12 into the
> linux-linaro-core-tracking tree today due to the issues found by Tixy.
>
> Tomorrow evening I am going to pull this topic anyway - whether these issues
> are resolved, or not. If the build err
This adds following helper routines:
- of_property_read_u8_array()
- of_property_read_u16_array()
- of_property_read_u8()
- of_property_read_u16()
This expects arrays from DT to be passed as:
- u8 array:
property = /bits/ 8 <0x50 0x60 0x70>;
- u16 array:
property = /bits/ 16 <0x500
Certain gcc tool chains convert the division on a 64-bit dividend into a
__aeabi_uldivmod call which does unnecessary 64-bit by 64-bit divides
although the divisor is 32-bit.This 64 by 64 bit division is not implemented
in the kernel for reasons of efficiency,which results in undefined reference
er
On 11/19/2012 10:42 PM, Jon Medhurst (Tixy) wrote:
On Mon, 2012-11-19 at 22:24 +0400, Andrey Konovalov wrote:
On 11/19/2012 10:17 PM, Jon Medhurst (Tixy) wrote:
On Mon, 2012-11-19 at 21:14 +0400, Andrey Konovalov wrote:
Viresh,
I won't pull the big-LITTLE-MP-master-v12 into the
linux-linaro-c
On Mon, 2012-11-19 at 22:24 +0400, Andrey Konovalov wrote:
> On 11/19/2012 10:17 PM, Jon Medhurst (Tixy) wrote:
> > On Mon, 2012-11-19 at 21:14 +0400, Andrey Konovalov wrote:
> >> Viresh,
> >>
> >> I won't pull the big-LITTLE-MP-master-v12 into the
> >> linux-linaro-core-tracking tree today due to
On 11/19/2012 10:17 PM, Jon Medhurst (Tixy) wrote:
On Mon, 2012-11-19 at 21:14 +0400, Andrey Konovalov wrote:
Viresh,
I won't pull the big-LITTLE-MP-master-v12 into the
linux-linaro-core-tracking tree today due to the issues found by Tixy.
Tomorrow evening I am going to pull this topic anyway
Hi Tixy,
I've got your kernel and the JB filesystem modified for USB booting here. There
is no boot delay for me - it takes just over 70s from boot monitor to mouse
pointer.
Catch you in the morning :)
Chris
> -Original Message-
> From: Jon Medhurst (Tixy) [mailto:t...@linaro.org]
> S
On Mon, 2012-11-19 at 21:14 +0400, Andrey Konovalov wrote:
> Viresh,
>
> I won't pull the big-LITTLE-MP-master-v12 into the
> linux-linaro-core-tracking tree today due to the issues found by Tixy.
>
> Tomorrow evening I am going to pull this topic anyway - whether these
> issues are resolved, o
On 19 November 2012 21:58, Stephen Warren wrote:
> Support for byte- and word- properties is relatively recent I believe
> (or at least, the /bits/ syntax is). Which dtc version are you using?
Ok, i was on a older version. I just saw this patch now:
commit cd296721a9645f9f28800a072490fa15458d1fb
Viresh,
I won't pull the big-LITTLE-MP-master-v12 into the
linux-linaro-core-tracking tree today due to the issues found by Tixy.
Tomorrow evening I am going to pull this topic anyway - whether these
issues are resolved, or not. If the build error is not fixed by Thursday
morning UTC, I'll m
On my smp platform which is made of 5 cores in 2 clusters,I have the
nr_busy_cpu field of sched_group_power struct that is not null when the
platform is fully idle. The root cause seems to be:
During the boot sequence, some CPUs reach the idle loop and set their
NOHZ_IDLE flag while waiting for oth
The function nohz_kick_needed modifies NOHZ_IDLE flag that is used to update
the nr_busy_cpus of the sched_group.
When the sched_domain are updated (because of the unplug of a CPUs as an
example) a null_domain is attached to CPUs. We have to test
likely(!on_null_domain(cpu) first in order to detect
The nr_busy_cpus field of the sched_group_power is sometime different from 0
whereas the platform is fully idle. This serie fixes 3 use cases:
- when the SCHED softirq is raised on an idle core for idle load balance but
the platform doesn't go out of the cpuidle state
- when some CPUs enter id
With the coupled cpuidle driver (but probably also with other drivers),
a CPU loops in a temporary safe state while waiting for other CPUs of its
cluster to be ready to enter the coupled C-state. If an IRQ or a softirq
occurs, the CPU will stay in this internal loop if there is no need
to resched.
On 11/18/2012 11:41 PM, Viresh Kumar wrote:
> On 19 November 2012 12:05, Rajanikanth HV wrote:
>> On 19 November 2012 12:00, Viresh Kumar wrote:
>>> Firstly you tried square braces [ ], I am not sure if that is allowed.
>>> Can you point me to the specification?
>> http://www.devicetree.org/Devic
On Mon, 2012-11-19 at 15:57 +, Chris Redpath wrote:
> These patches are mine and Olivier's, can you tell me what your config is to
> see even a 90s boot? I haven't noticed any boot-time extension on my system,
> but I'm booting from the A15 cluster. I'd like to reproduce your system here.
Th
Hi Tixy,
These patches are mine and Olivier's, can you tell me what your config is to
see even a 90s boot? I haven't noticed any boot-time extension on my system,
but I'm booting from the A15 cluster. I'd like to reproduce your system here.
The build error is my mistake, I need to know which CP
On Sun, 2012-11-18 at 10:40 +0530, Viresh Kumar wrote:
> Hi Andrey,
>
> Please pull big-LITTLE-MP-master-v12 with following updates:
>
> - Based on v3.7-rc5
> - Stats:
> - Total Patches: 62
> - New Patches: 1
>- genirq: Add default affinity mask command line option in
>
Hi Francesco,
Thanks for your comments on the patch.
On 18/11/12 10:41, Francesco Lavra wrote:
Hi,
On 11/12/2012 05:57 PM, Punit Agrawal wrote:
I am attaching a patch by Thomas Gleixner which adds a kernel
command line parameter to set the defauilt IRQ affinity mask. Could
you please integrat
On 19/11/12 14:09, Vincent Guittot wrote:
On 19 November 2012 14:36, Morten Rasmussen wrote:
On 19/11/12 12:23, Vincent Guittot wrote:
On 19 November 2012 13:08, Morten Rasmussen
wrote:
Hi Vincent,
On 19/11/12 09:20, Vincent Guittot wrote:
Hi,
On 16 November 2012 19:32, Liviu Dudau
On 19 November 2012 14:36, Morten Rasmussen wrote:
> On 19/11/12 12:23, Vincent Guittot wrote:
>>
>> On 19 November 2012 13:08, Morten Rasmussen
>> wrote:
>>>
>>> Hi Vincent,
>>>
>>>
>>> On 19/11/12 09:20, Vincent Guittot wrote:
Hi,
On 16 November 2012 19:32, Liviu Dudau
On 19/11/12 12:23, Vincent Guittot wrote:
On 19 November 2012 13:08, Morten Rasmussen wrote:
Hi Vincent,
On 19/11/12 09:20, Vincent Guittot wrote:
Hi,
On 16 November 2012 19:32, Liviu Dudau wrote:
From: Morten Rasmussen
Re-enable SD_SHARE_POWERLINE to reflect the power domains of TC2.
On 19 November 2012 13:08, Morten Rasmussen wrote:
> Hi Vincent,
>
>
> On 19/11/12 09:20, Vincent Guittot wrote:
>>
>> Hi,
>>
>> On 16 November 2012 19:32, Liviu Dudau wrote:
>>>
>>> From: Morten Rasmussen
>>>
>>> Re-enable SD_SHARE_POWERLINE to reflect the power domains of TC2.
>>> ---
>>> ar
Hi Vincent,
On 19/11/12 09:20, Vincent Guittot wrote:
Hi,
On 16 November 2012 19:32, Liviu Dudau wrote:
From: Morten Rasmussen
Re-enable SD_SHARE_POWERLINE to reflect the power domains of TC2.
---
arch/arm/kernel/topology.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -
On 19 November 2012 10:10, Viresh Kumar wrote:
> On 19 November 2012 14:33, Vincent Guittot wrote:
>> I would prefer that you use the branch in the git tree below instead
>> which is the final correction
>> http://git.linaro.org/gitweb?p=people/vingu/kernel.git;a=shortlog;h=refs/heads/sched-pack-
Hi,
On 16 November 2012 19:32, Liviu Dudau wrote:
> From: Morten Rasmussen
>
> Re-enable SD_SHARE_POWERLINE to reflect the power domains of TC2.
> ---
> arch/arm/kernel/topology.c |2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/kernel/topology.c b/arch/arm/k
On 19 November 2012 14:33, Vincent Guittot wrote:
> I would prefer that you use the branch in the git tree below instead
> which is the final correction
> http://git.linaro.org/gitweb?p=people/vingu/kernel.git;a=shortlog;h=refs/heads/sched-pack-small-task-v1-fixed
Hi Vingu,
I have applied 3 patc
Hi,
I would prefer that you use the branch in the git tree below instead
which is the final correction
http://git.linaro.org/gitweb?p=people/vingu/kernel.git;a=shortlog;h=refs/heads/sched-pack-small-task-v1-fixed
Regards
Vincent
On 16 November 2012 19:32, Liviu Dudau wrote:
> From: Morten Rasmu
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