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| author | Qais Yousef <qais.yousef@imgtec.com> | 2015-12-08 13:20:22 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-02-25 10:56:57 +0100 |
| commit | 3b8e29a82dd16c1f2061e0b955a71cd36eeb061b (patch) | |
| tree | 27d950bf3bf6e4a7b12e2f969a069afd040115a1 /include/linux/irq.h | |
| parent | 34dc1ae101018dbb50e1d04e88aa89052802a7db (diff) | |
| download | lwn-3b8e29a82dd16c1f2061e0b955a71cd36eeb061b.tar.gz lwn-3b8e29a82dd16c1f2061e0b955a71cd36eeb061b.zip | |
genirq: Implement ipi_send_mask/single()
Add APIs to send IPIs from driver and arch code.
We have different functions because we allow architecture code to cache the
irq descriptor to avoid lookups. Driver code has to use the irq number and is
subject to more restrictive checks.
[ tglx: Polish the implementation ]
Signed-off-by: Qais Yousef <qais.yousef@imgtec.com>
Cc: <jason@lakedaemon.net>
Cc: <marc.zyngier@arm.com>
Cc: <jiang.liu@linux.intel.com>
Cc: <ralf@linux-mips.org>
Cc: <linux-mips@linux-mips.org>
Cc: <lisa.parratt@imgtec.com>
Cc: Qais Yousef <qsyousef@gmail.com>
Link: http://lkml.kernel.org/r/1449580830-23652-12-git-send-email-qais.yousef@imgtec.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/irq.h')
| -rw-r--r-- | include/linux/irq.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index 3b3a5b817469..d5ebd94822d2 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -948,5 +948,9 @@ static inline u32 irq_reg_readl(struct irq_chip_generic *gc, /* Contrary to Linux irqs, for hardware irqs the irq number 0 is valid */ #define INVALID_HWIRQ (~0UL) irq_hw_number_t ipi_get_hwirq(unsigned int irq, unsigned int cpu); +int __ipi_send_single(struct irq_desc *desc, unsigned int cpu); +int __ipi_send_mask(struct irq_desc *desc, const struct cpumask *dest); +int ipi_send_single(unsigned int virq, unsigned int cpu); +int ipi_send_mask(unsigned int virq, const struct cpumask *dest); #endif /* _LINUX_IRQ_H */ |