On Tue, 2008-05-13 at 15:26 -0700, Corey Ashford wrote: > The perfmon2 code is available here: > http://sourceforge.net/project/showfiles.php?group_id=144822 > > perfmon2's interrupt handler does have a single entry point. Could I > somehow mimic what the MASKABLE_EXCEPTION_PSERIES macro does inside > of > the perfmon2 interrupt handler? Are there examples of this I can look > at? > > That would give us the best of both worlds.
You can definitely snapshot as many data as you can, and if interrupts are soft-disabled, just return to the caller, storing that snapshot in some per-cpu data structure. You can then add something to local_irq_restore() that checks whether some perfmon2 stuff happened and does the actual storing of the data that were previously collected. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
