linux-sg2042/arch/m68k/atari
Michael Schmitz a0b7b24226 m68k/irq - Use polled IRQ flag for MFP timer cascaded interrupts
Some Atari hardware has no capacity to raise interrupts (e.g.
network or USB adapter hardware attached via ROM port). The driver
interrupt routine is called from a timer interrupt (timer D) in
these cases, using chained device specific pseudo interrupts
(IRQ_MFP_TIMER1 ff.)

These interrupts will more often than not, return IRQ_NONE as
there is not always work for the device handler when called.
Too many unhandled interrupts will result in the interrupt
being disabled by the stuck interrupt watchdog.

As preferred option to flag interrupts as needing exclusion
from the watchdog mechanism, tglx added the IRQ_IS_POLLED flag
for use in such a case. Currently, two interrupts need to use
this flag. Add more users as needed.

Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2014-01-13 09:29:10 +01:00
..
Makefile m68k: Remove the broken Hades support 2008-10-14 10:23:27 -07:00
ataints.c m68k/irq - Use polled IRQ flag for MFP timer cascaded interrupts 2014-01-13 09:29:10 +01:00
atakeyb.c input/atari: Use the correct mouse interrupt hook 2011-05-19 18:19:11 +02:00
atasound.c Disintegrate asm/system.h for M68K 2012-03-28 18:30:02 +01:00
config.c m68k/UAPI: Use proper types (endianness/size) in <asm/bootinfo*.h> 2013-11-26 11:09:21 +01:00
debug.c m68k/amiga,atari: Fix specifying multiple debug= parameters 2013-12-08 11:03:21 +01:00
stdma.c m68k/atari: Do not use "/" in interrupt names 2011-05-19 18:19:10 +02:00
stram.c m68k/atari: Reserve some ST-RAM early on for device buffer use 2011-07-30 21:21:39 +02:00
time.c m68k: set arch_gettimeoffset directly 2012-12-24 09:36:34 -07:00