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| author |   Julien Thierry <julien.thierry@arm.com> | 2019-01-31 14:53:59 +0000 |
|---|---|---|
| committer |   Marc Zyngier <marc.zyngier@arm.com> | 2019-02-05 14:36:58 +0000 |
| commit | 4b078c3f1a26487c39363089ba0d5c6b09f2a89f (patch) | |
| tree | 3536174761fea16583c3e365501f7e812e6f6529 /include/linux/interrupt.h | |
| parent | genirq: Provide basic NMI management for interrupt lines (diff) | |
| download | linux-dev-4b078c3f1a26487c39363089ba0d5c6b09f2a89f.tar.xz linux-dev-4b078c3f1a26487c39363089ba0d5c6b09f2a89f.zip | |
genirq: Provide NMI management for percpu_devid interrupts
Add support for percpu_devid interrupts treated as NMIs.
Percpu_devid NMIs need to be setup/torn down on each CPU they target.
The same restrictions as for global NMIs still apply for percpu_devid NMIs.
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'include/linux/interrupt.h')
| -rw-r--r-- | include/linux/interrupt.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 9941d1a8d83c..831ddcdc5597 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -168,10 +168,15 @@ request_percpu_irq(unsigned int irq, irq_handler_t handler, devname, percpu_dev_id); } +extern int __must_check +request_percpu_nmi(unsigned int irq, irq_handler_t handler, + const char *devname, void __percpu *dev); + extern const void *free_irq(unsigned int, void *); extern void free_percpu_irq(unsigned int, void __percpu *); extern const void *free_nmi(unsigned int irq, void *dev_id); +extern void free_percpu_nmi(unsigned int irq, void __percpu *percpu_dev_id); struct device; @@ -224,7 +229,11 @@ extern bool irq_percpu_is_enabled(unsigned int irq); extern void irq_wake_thread(unsigned int irq, void *dev_id); extern void disable_nmi_nosync(unsigned int irq); +extern void disable_percpu_nmi(unsigned int irq); extern void enable_nmi(unsigned int irq); +extern void enable_percpu_nmi(unsigned int irq, unsigned int type); +extern int prepare_percpu_nmi(unsigned int irq); +extern void teardown_percpu_nmi(unsigned int irq); /* The following three functions are for the core kernel use only. */ extern void suspend_device_irqs(void); |