irq_setup_alt_chip – Switch to alternative chip Synopsis int irq_setup_alt_chip(struct irq_data *d, unsigned int type); Arguments d irq_data for this interrupt type Flow type to be initialized Description Only to be called from chip->irq_set_type callbacks. Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright
irq_set_vcpu_affinity – Set vcpu affinity for the interrupt Synopsis int irq_set_vcpu_affinity(unsigned int irq, void *vcpu_info); Arguments irq interrupt number to set affinity vcpu_info vCPU specific data Description This function uses the vCPU specific data to set the vCPU affinity for an irq. The vCPU specific data is passed from outside, such as KVM. One example…
irq_set_msi_desc_off – set MSI descriptor data for an irq at offset Synopsis int irq_set_msi_desc_off(unsigned int irq_base, unsigned int irq_offset, struct msi_desc *entry); Arguments irq_base Interrupt number base irq_offset Interrupt number offset entry Pointer to MSI descriptor data Description Set the MSI descriptor entry for an irq at offset Authors Thomas Gleixner <tglx [at] linutronix.de> Author….
irq_set_msi_desc – set MSI descriptor data for an irq Synopsis int irq_set_msi_desc(unsigned int irq, struct msi_desc *entry); Arguments irq Interrupt number entry Pointer to MSI descriptor data Description Set the MSI descriptor entry for an irq Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright
irq_set_irqchip_state – set the state of a forwarded interrupt. Synopsis int irq_set_irqchip_state(unsigned int irq, enum irqchip_irq_state which, bool val); Arguments irq Interrupt line that is forwarded to a VM which State to be restored (one of IRQCHIP_STATE_*) val Value corresponding to which Description This call sets the internal irqchip state of an interrupt, depending on…
irq_set_irq_wake – control irq power management wakeup Synopsis int irq_set_irq_wake(unsigned int irq, unsigned int on); Arguments irq interrupt to control on enable/disable power management wakeup Description Enable/disable power management wakeup mode, which is disabled by default. Enables and disables must match, just as they match for non-wakeup mode support. Wakeup mode lets this IRQ wake…
irq_set_irq_type – set the irq trigger type for an irq Synopsis int irq_set_irq_type(unsigned int irq, unsigned int type); Arguments irq irq number type IRQ_TYPE_{LEVEL,EDGE}_* value – see include/linux/irq.h Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright
irq_set_handler_data – set irq handler data for an irq Synopsis int irq_set_handler_data(unsigned int irq, void *data); Arguments irq Interrupt number data Pointer to interrupt specific data Description Set the hardware irq controller data for an irq Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright
irq_set_chip_data – set irq chip data for an irq Synopsis int irq_set_chip_data(unsigned int irq, void *data); Arguments irq Interrupt number data Pointer to chip specific data Description Set the hardware irq chip data for an irq Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright
irq_set_chip – set the irq chip for an irq Synopsis int irq_set_chip(unsigned int irq, struct irq_chip *chip); Arguments irq irq number chip pointer to irq chip description structure Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright
irq_set_affinity_notifier – control notification of IRQ affinity changes Synopsis int irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify); Arguments irq Interrupt for which to enable/disable notification notify Context for notification, or NULL to disable notification. Function pointers must be initialised; the other fields will be initialised by this function. Description Must be called in process context. Notification…
irq_set_affinity – Set the irq affinity of a given irq Synopsis int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask); Arguments irq Interrupt to set affinity cpumask cpumask Description Fails if cpumask does not contain an online CPU Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright
irq_remove_generic_chip – Remove a chip Synopsis void irq_remove_generic_chip(struct irq_chip_generic *gc, u32 msk, unsigned int clr, unsigned int set); Arguments gc Generic irq chip holding all data msk Bitmask holding the irqs to initialize relative to gc->irq_base clr IRQ_* bits to clear set IRQ_* bits to set Description Remove up to 32 interrupts starting from gc->irq_base….
irq_percpu_is_enabled – Check whether the per cpu irq is enabled Synopsis bool irq_percpu_is_enabled(unsigned int irq); Arguments irq Linux irq number to check for Description Must be called from a non migratable context. Returns the enable state of a per cpu interrupt on the current cpu. Copyright
irq_get_next_irq – get next allocated irq number Synopsis unsigned int irq_get_next_irq(unsigned int offset); Arguments offset where to start the search Description Returns next irq number after offset or nr_irqs if none is found. Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright
irq_get_irqchip_state – returns the irqchip state of a interrupt. Synopsis int irq_get_irqchip_state(unsigned int irq, enum irqchip_irq_state which, bool *state); Arguments irq Interrupt line that is forwarded to a VM which One of IRQCHIP_STATE_* the caller wants to know about state a pointer to a boolean where the state is to be storeed Description This call…
irq_get_domain_generic_chip – Get a pointer to the generic chip of a hw_irq Synopsis struct irq_chip_generic *irq_get_domain_generic_chip(struct irq_domain *d, unsigned int hw_irq); Arguments d irq domain pointer hw_irq Hardware interrupt number Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright
irq_gc_mask_set_bit – Mask chip via setting bit in mask register Synopsis void irq_gc_mask_set_bit(struct irq_data *d); Arguments d irq_data Description Chip has a single mask register. Values of this register are cached and protected by gc->lock Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright
irq_gc_mask_clr_bit – Mask chip via clearing bit in mask register Synopsis void irq_gc_mask_clr_bit(struct irq_data *d); Arguments d irq_data Description Chip has a single mask register. Values of this register are cached and protected by gc->lock Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright
irq_gc_ack_set_bit – Ack pending interrupt via setting bit Synopsis void irq_gc_ack_set_bit(struct irq_data *d); Arguments d irq_data Authors Thomas Gleixner <tglx [at] linutronix.de> Author. Ingo Molnar <mingo [at] elte.hu> Author. Copyright