Dmitry Adamushko wrote: > Hi there, > > I have explicitly cc'ed Gilles as this patch affects the posix skin. > > In the light of the recent discussions, the AUTOENA flag has been converted > to NOAUTOENA and the IRQ line is re-enabled on return from > xnintr_irq_handler() and shirq brothers by default. > Also XN_ISR_CHAINED -> XN_ISR_PROPAGATE. > > I'm still not sutisfied with results, namely - return values of ISR. But, > well, this is a quite separate question to the shirq support so the later > one should not remain in pending status only because of that. > > I still would like to see something along scalar values : NONE, HANDLED, > PROPAGATE and xnintr_disable() being called in ISR to defer IRQ line > enabling (not .ending -> PROPAGATE does it). > (*) > > Currently, there is a XN_ISR_NOENABLE bit which asks the real-time layer to > defer the IRQ line, Warning!, .ending (and not just enabling) until later. > In common case, xnarch_end_irq() must be called by the rt_task that stands > for a bottom half (and not just xnintr_enable() - this may not work on ppc). > This adds a bit of confusion and we will avoid it with (*) scheme. So this > is a subject to change in the future. > As I pointed out in another message, the implementation for PPC is not yet > clear at the moment. That's it... > > Ok, are there any objections as to the current patch? If no, please apply.
No objections from my side (I'm overseeing those 2 or 3 white-space inconsistencies ;) ), should get applied! I will prepare and commit the remaining tiny updates of RTDM and 16550A (regarding propagate and re-enable) as soon as this one is merged. > > CHANGELOG.patch is here > https://mail.gna.org/public/xenomai-core/2006-02/msg00154.html > > -- > Best regards, > Dmitry Adamushko > Thanks for all your efforts! Jan
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