Re: m68k: Convert to genirq (WIP)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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:
Now sparc32 has beaten me, I pushed out my work in progress of converting m68k
to use the generic hardirq framework:

git://git.kernel.org:/pub/scm/linux/kernel/git/geert/linux-m68k.git m68k-genirq
http://git.kernel.org/?p=linux/kernel/git/geert/linux-m68k.git;a=shortlog;h=refs/heads/m68k-genirq

Next on my list is Amiga, which will cover autovectored and chained interrupts.

I rebased to 3.0-rc1 and added (not in that order):
Â[10] m68k/irq: Add m68k_setup_irq_controller()
Â[11] m68k/irq: Adding missing "irq" offset in m68k_setup_irq_controller()
Â[12] m68k/irq: Fix auto and user chips and handlers
Â[13] m68k/amiga: Refactor amiints.c
Â[14] m68k/amiga: Convert Amiga to genirq
Â[15] m68k/amiga: Optimize interrupts using chain handlers

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.

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?

Gr{oetje,eeting}s,

            Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
             Â Â -- Linus Torvalds
--
To unsubscribe from this list: send the line "unsubscribe linux-m68k" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Video for Linux]     [Yosemite News]     [Linux S/390]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux