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Re: [PATCH] tcb_clksrc: Use 32 bit tcb as sched_clock

Started byDaniel Lezcano <daniel.lezcano@linaro.org>
First post2017-01-23 15:00 +0100
Last post2017-01-24 14:40 +0100
Articles 2 — 2 participants

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  Re: [PATCH] tcb_clksrc: Use 32 bit tcb as sched_clock Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-01-23 15:00 +0100
    Re: [PATCH] tcb_clksrc: Use 32 bit tcb as sched_clock Nicolas Ferre <nicolas.ferre@atmel.com> - 2017-01-24 14:40 +0100

#1564982 — Re: [PATCH] tcb_clksrc: Use 32 bit tcb as sched_clock

FromDaniel Lezcano <daniel.lezcano@linaro.org>
Date2017-01-23 15:00 +0100
SubjectRe: [PATCH] tcb_clksrc: Use 32 bit tcb as sched_clock
Message-ID<t2Nk5-78N-1@gated-at.bofh.it>
On Wed, Jan 11, 2017 at 02:50:59PM +0100, David Engraf wrote:
> On newer boards the TC can be read as single 32 bit value without locking.
> Thus the clock can be used as reference for sched_clock which is much more
> accurate than the jiffies implementation.
> 
> Tested on a Atmel SAMA5D2 board.
> 
> Signed-off-by: David Engraf <david.engraf@sysgo.com>
> ---

Nicolas,

if you agree I will take this change.

  -- Daniel

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#1565847

FromNicolas Ferre <nicolas.ferre@atmel.com>
Date2017-01-24 14:40 +0100
Message-ID<t39uh-4Sz-9@gated-at.bofh.it>
In reply to#1564982
Le 23/01/2017 à 14:59, Daniel Lezcano a écrit :
> On Wed, Jan 11, 2017 at 02:50:59PM +0100, David Engraf wrote:
>> On newer boards the TC can be read as single 32 bit value without locking.
>> Thus the clock can be used as reference for sched_clock which is much more
>> accurate than the jiffies implementation.
>>
>> Tested on a Atmel SAMA5D2 board.
>>
>> Signed-off-by: David Engraf <david.engraf@sysgo.com>
>> ---
> 
> Nicolas,
> 
> if you agree I will take this change.

Absolutely. I've just added the Ack.

Thanks for the head-up. Bye,
-- 
Nicolas Ferre

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