* Matthijs van Duin <matthijsvanduin@xxxxxxxxx> [150216 12:12]: > On 16 February 2015 at 18:58, Tony Lindgren <tony@xxxxxxxxxxx> wrote: > > The perf counter on omap3 used to work, but is buggy at least on > > 3430 because it eventually stops producing interrupts because of > > some bug in the Cortex-A8 version being used. > > Of course the workaround of polling the counters at least once per > 2^31 clock cycles to detect when they wrap (or in general keep local > 64-bit copies up-to-date) is not really a huge burden. >From memory.. I believe the issue was that for anything needing to set the counter and rely on the counter interrupt things would fail as the counter interrupts would not always happen. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
