On Thu, 16 Jun 2011, Geert Uytterhoeven wrote:
On Wed, Jun 15, 2011 at 21:44, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
On Sat, Jun 4, 2011 at 19:56, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
On Sat, May 28, 2011 at 20:32, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
It works on Amiga now, too. It can still use some optimizations in
the irq_{enable,disable,ack,mask,mask_ack,unmask} area, as my
BogoMIPS rating dropped by ca 2.5% and is now under 16, for a 25 MHz
68040.
Seems like everything (Atari/ARAnyM and Amiga) still works when using
handle_simple_irq instead of handle_level_irq. As a bonus, BogoMIPS is
above 16 again.
Your bogomips benchmark would be the best-case penalty, right?
Have you tried say, sending a ping flood to measure throughput and
latency?
With handle_simple_irq(), we no longer need to define irq_{,un}mask()
methods in our irq_chips. Hence the "old" m68k platform interrupt code
seems to be much closer to genirq than I thought...
Does this make sense?
If the simple irq model gets us closer to the goal and doesn't kill
performance then it makes sense to me.
Finn
Gr{oetje,eeting}s,
Geert
