linux-toradex.git/kernel/irq/spurious.c, branch v3.1.2

irq: Handle spurios irq detection for threaded irqs

2011-06-03T12:53:15+00:00

The detection of spurios interrupts is currently limited to first level
handler. In force-threaded mode we never notice if the threaded irq does
not feel responsible.
This patch catches the return value of the threaded handler and forwards
it to the spurious detector. If the primary handler returns only
IRQ_WAKE_THREAD then the spourious detector ignores it because it gets
called again from the threaded handler.

[ tglx: Report the erroneous return value early and bail out ]

Signed-off-by: Sebastian Andrzej Siewior 
Link: http://lkml.kernel.org/r/1306824972-27067-2-git-send-email-sebastian@breakpoint.cc
Signed-off-by: Thomas Gleixner

genirq: Print threaded handler in spurious debug output

2011-06-03T12:53:15+00:00

In forced threaded mode (or with an explicit threaded handler) we only
see the primary handler, but not the threaded handler.

Signed-off-by: Sebastian Andrzej Siewior 
Link: http://lkml.kernel.org/r/1306824972-27067-1-git-send-email-sebastian@breakpoint.cc
Signed-off-by: Thomas Gleixner

genirq: Remove compat code

2011-03-29T12:48:19+00:00

Signed-off-by: Thomas Gleixner

genirq: Fix typo and remove unused variable

2011-03-28T18:28:56+00:00

Sigh, I'm overworked.

Signed-off-by: Thomas Gleixner

genirq: Move INPROGRESS, MASKED and DISABLED state flags to irq_data

2011-03-28T14:55:10+00:00

We really need these flags for some of the interrupt chips. Move it
from internal state to irq_data and provide proper accessors.

Signed-off-by: Thomas Gleixner 
Cc: David Daney

genirq: Wrap the remaning IRQ_* flags

2011-02-19T11:58:21+00:00

Use wrappers to keep them away from the core code.

Signed-off-by: Thomas Gleixner

genirq: Mirror IRQ_PER_CPU and IRQ_NO_BALANCING in irq_data.state

2011-02-19T11:58:20+00:00

That's the right data structure to look at for arch code.

Accessor functions are provided.

	 irqd_is_per_cpu(irqdata);
	 irqd_can_balance(irqdata);

Coders who access them directly will be tracked down and slapped with
stinking trouts.

Signed-off-by: Thomas Gleixner

genirq: Move IRQ_PENDING flag to core

2011-02-19T11:58:17+00:00

Keep status in sync until all users are fixed.

Signed-off-by: Thomas Gleixner

genirq: Move IRQ_DISABLED to core

2011-02-19T11:58:17+00:00

Keep status in sync until all abusers are fixed.

Signed-off-by: Thomas Gleixner

genirq: Add IRQ_INPROGRESS to core

2011-02-19T11:58:16+00:00

We need to maintain the flag for now in both fields status and istate.
Add a CONFIG_GENERIC_HARDIRQS_NO_COMPAT switch to allow testing w/o
the status one. Wrap the access to status IRQ_INPROGRESS in a inline
which can be turned of with CONFIG_GENERIC_HARDIRQS_NO_COMPAT along
with the define.

There is no reason that anything outside of core looks at this. That
needs some modifications, but we'll get there.

Signed-off-by: Thomas Gleixner