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SubjectRe: [PATCH 1/3] dynticks - implement no idle hz for x86
Srivatsa Vaddagiri wrote:

>On Wed, Sep 07, 2005 at 09:42:24AM -0700, Nish Aravamudan wrote:
>>Hrm, got dropped from the Cc... :) Yes, the dynamic-tick generic
>>infrastructure being proposed, with the idle CPU mask and the
>>set_all_cpus_idle() tick_source hook, would allow exactly this in
>>arch-specific code.
>I think Bill is referring to the "resume" interface i.e an
>unset_all_cpus_idle() interface, which is missing (set/unset
>probably are not good prefixes maybe?). I feel we can
>add one.
Exactly what I had in mind. If there are hooks for all_idle transitions
then architectures can hang whatever makes sense there. That hopefully
would result in readable code for both power reduction (laptop) and for
the strange things that embedded systems sometimes do.

bill davidsen <>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979

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