Messages in this thread | | | Date | Wed, 17 Mar 2004 19:28:21 -0800 | From | Andrew Morton <> | Subject | Re: add lowpower_idle sysctl |
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"Kenneth Chen" <kenneth.w.chen@intel.com> wrote: > > > > Logically it means a sysctl entry in /proc/sys/kernel. > > Yes, but the *meanings* of the different values of that sysctl need > > to be defined, and documented. If lowpower_idle=42 has a totally > > different meaning on different architectures then that's unfortunate > > but understandable. But we should at least enumerate the different > > values and try to get different architectures to honour `42' in the > > same way. > > Writing to sysctl should be a bool, reading the value can be number of > module currently disabled low power idle. I think the original intent > is to use ref count for enabling/disabling. (granted, we copied the > code from other arch).
OK, so why not give us:
#define IDLE_HALT 0 #define IDLE_POLL 1 #define IDLE_SUPER_LOW_POWER_HALT 2
and so forth (are there any others?).
Set some system-wide integer via a sysctl and let the particular architecture decide how best to implement the currently-selected idle mode?
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