On Mon, 2010-01-18 at 15:45 +0100, Frederic Weisbecker wrote:
>
> > > That requires to know in advance if we have hardware pmu
> > > in the list though (can be a flag in the group).
> >
> > Good point, but your proposed hw_check_constraint() call needs to know
> > the exact same.
>
>
> True. Whatever model we use anyway, both implement the same idea.
Hmm, we seem to already have that problem (which would indicate another
bug in the hw-breakpoint stuff), how do you deal with
hw_perf_{enable,disable}() for the breakpoints?
We could fix this by making these pmu state functions into a callback
list visiting all registered PMUs.
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