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| author |   Thomas Gleixner <tglx@linutronix.de> | 2017-06-20 01:37:52 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-06-22 18:21:25 +0200 |
| commit | d52dd44175bd27ad9d8e34a994fb80877c1f6d61 (patch) | |
| tree | d9418a898e1a4653d9ed83aac1e4f179640999c0 /kernel/irq | |
| parent | genirq/cpuhotplug: Handle managed IRQs on CPU hotplug (diff) | |
| download | linux-dev-d52dd44175bd27ad9d8e34a994fb80877c1f6d61.tar.xz linux-dev-d52dd44175bd27ad9d8e34a994fb80877c1f6d61.zip | |
genirq: Introduce IRQD_SINGLE_TARGET flag
Many interrupt chips allow only a single CPU as interrupt target. The core
code has no knowledge about that. That's unfortunate as it could avoid
trying to readd a newly online CPU to the effective affinity mask.
Add the status flag and the necessary accessors.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Link: http://lkml.kernel.org/r/20170619235447.352343969@linutronix.de
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/debugfs.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/irq/debugfs.c b/kernel/irq/debugfs.c index edbef252d0c4..dbd6e78db213 100644 --- a/kernel/irq/debugfs.c +++ b/kernel/irq/debugfs.c @@ -105,6 +105,7 @@ static const struct irq_bit_descr irqdata_states[] = { BIT_MASK_DESCR(IRQD_PER_CPU), BIT_MASK_DESCR(IRQD_NO_BALANCING), + BIT_MASK_DESCR(IRQD_SINGLE_TARGET), BIT_MASK_DESCR(IRQD_MOVE_PCNTXT), BIT_MASK_DESCR(IRQD_AFFINITY_SET), BIT_MASK_DESCR(IRQD_SETAFFINITY_PENDING), |