* CONFIG_IRQ_TIMINGS?
@ 2018-02-15 18:46 Randy Dunlap
2018-02-16 14:16 ` CONFIG_IRQ_TIMINGS? Thomas Gleixner
0 siblings, 1 reply; 4+ messages in thread
From: Randy Dunlap @ 2018-02-15 18:46 UTC (permalink / raw)
To: LKML, X86 ML
Hi,
Is this a dead kconfig symbol? I don't see any Kconfig file that
sets/enables it.
./kernel/irq/Makefile:4:obj-$(CONFIG_IRQ_TIMINGS) += timings.o
./kernel/irq/internals.h:#ifdef CONFIG_IRQ_TIMINGS
./kernel/irq/internals.h:#endif /* CONFIG_IRQ_TIMINGS */
./include/linux/interrupt.h:#ifdef CONFIG_IRQ_TIMINGS
thanks,
--
~Randy
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: CONFIG_IRQ_TIMINGS?
2018-02-15 18:46 CONFIG_IRQ_TIMINGS? Randy Dunlap
@ 2018-02-16 14:16 ` Thomas Gleixner
2018-02-16 14:54 ` CONFIG_IRQ_TIMINGS? Daniel Lezcano
0 siblings, 1 reply; 4+ messages in thread
From: Thomas Gleixner @ 2018-02-16 14:16 UTC (permalink / raw)
To: Randy Dunlap; +Cc: LKML, X86 ML, Daniel Lezcano
On Thu, 15 Feb 2018, Randy Dunlap wrote:
> Hi,
>
> Is this a dead kconfig symbol? I don't see any Kconfig file that
> sets/enables it.
>
> ./kernel/irq/Makefile:4:obj-$(CONFIG_IRQ_TIMINGS) += timings.o
> ./kernel/irq/internals.h:#ifdef CONFIG_IRQ_TIMINGS
> ./kernel/irq/internals.h:#endif /* CONFIG_IRQ_TIMINGS */
> ./include/linux/interrupt.h:#ifdef CONFIG_IRQ_TIMINGS
The actual use case is stil being worked on. Took a bit longer than
expected, but Daniel might have a more accurate answer.
Thanks,
tglx
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: CONFIG_IRQ_TIMINGS?
2018-02-16 14:16 ` CONFIG_IRQ_TIMINGS? Thomas Gleixner
@ 2018-02-16 14:54 ` Daniel Lezcano
2018-02-16 17:51 ` CONFIG_IRQ_TIMINGS? Randy Dunlap
0 siblings, 1 reply; 4+ messages in thread
From: Daniel Lezcano @ 2018-02-16 14:54 UTC (permalink / raw)
To: Thomas Gleixner, Randy Dunlap; +Cc: LKML, X86 ML
On 16/02/2018 15:16, Thomas Gleixner wrote:
> On Thu, 15 Feb 2018, Randy Dunlap wrote:
>
>> Hi,
>>
>> Is this a dead kconfig symbol? I don't see any Kconfig file that
>> sets/enables it.
>>
>> ./kernel/irq/Makefile:4:obj-$(CONFIG_IRQ_TIMINGS) += timings.o
>> ./kernel/irq/internals.h:#ifdef CONFIG_IRQ_TIMINGS
>> ./kernel/irq/internals.h:#endif /* CONFIG_IRQ_TIMINGS */
>> ./include/linux/interrupt.h:#ifdef CONFIG_IRQ_TIMINGS
This feature is not supposed to be selected by the user but by a
subsystem depending on it. This subsystems is not yet ready, this is why
the option is not selectable for now.
The algorithm using these timings appears to be too heavy for the
kernel, it needs some rework.
--
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: CONFIG_IRQ_TIMINGS?
2018-02-16 14:54 ` CONFIG_IRQ_TIMINGS? Daniel Lezcano
@ 2018-02-16 17:51 ` Randy Dunlap
0 siblings, 0 replies; 4+ messages in thread
From: Randy Dunlap @ 2018-02-16 17:51 UTC (permalink / raw)
To: Daniel Lezcano, Thomas Gleixner; +Cc: LKML, X86 ML
On 02/16/2018 06:54 AM, Daniel Lezcano wrote:
> On 16/02/2018 15:16, Thomas Gleixner wrote:
>> On Thu, 15 Feb 2018, Randy Dunlap wrote:
>>
>>> Hi,
>>>
>>> Is this a dead kconfig symbol? I don't see any Kconfig file that
>>> sets/enables it.
>>>
>>> ./kernel/irq/Makefile:4:obj-$(CONFIG_IRQ_TIMINGS) += timings.o
>>> ./kernel/irq/internals.h:#ifdef CONFIG_IRQ_TIMINGS
>>> ./kernel/irq/internals.h:#endif /* CONFIG_IRQ_TIMINGS */
>>> ./include/linux/interrupt.h:#ifdef CONFIG_IRQ_TIMINGS
>
> This feature is not supposed to be selected by the user but by a
> subsystem depending on it. This subsystems is not yet ready, this is why
> the option is not selectable for now.
>
> The algorithm using these timings appears to be too heavy for the
> kernel, it needs some rework.
OK, thanks for the info.
--
~Randy
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2018-02-16 17:51 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2018-02-15 18:46 CONFIG_IRQ_TIMINGS? Randy Dunlap
2018-02-16 14:16 ` CONFIG_IRQ_TIMINGS? Thomas Gleixner
2018-02-16 14:54 ` CONFIG_IRQ_TIMINGS? Daniel Lezcano
2018-02-16 17:51 ` CONFIG_IRQ_TIMINGS? Randy Dunlap
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