genirq: Add a new IRQCHIP_EOI_THREADED flag

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The flag is necessary for interrupt chips which require an ACK/EOI
after the handler has run. In case of threaded handlers this needs to
happen after the threaded handler has completed before the unmask of
the interrupt.

The flag is only unseful in combination with the handle_fasteoi_irq
flow control handler.

It can be combined with the flag IRQCHIP_EOI_IF_HANDLED, so the EOI is
not issued when the interrupt is disabled or in progress.

Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-sunxi@googlegroups.com
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: http://lkml.kernel.org/r/1394733834-26839-2-git-send-email-hdegoede@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

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This commit is contained in:

Thomas Gleixner 2014-03-13 19:03:51 +01:00

parent 4f6e4f71c9

commit 328a4978df

4 changed files with 44 additions and 9 deletions

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2

include/linux/irq.h

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48

kernel/irq/chip.c

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1

kernel/irq/internals.h

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2

kernel/irq/manage.c

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