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STRUCT IRQ_DATA(9) Structures STRUCT IRQ_DATA(9)

NAME

struct_irq_data - per irq chip data passed down to chip functions

SYNOPSIS

struct irq_data {
  u32 mask;
  unsigned int irq;
  unsigned long hwirq;
  struct irq_common_data * common;
  struct irq_chip * chip;
  struct irq_domain * domain;
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
  struct irq_data * parent_data;
#endif
  void * chip_data;
};

MEMBERS

mask
precomputed bitmask for accessing the chip registers

irq

interrupt number

hwirq

hardware interrupt number, local to the interrupt domain

common

point to data shared by all irqchips

chip

low level interrupt hardware access

domain

Interrupt translation domain; responsible for mapping between hwirq number and linux irq number.

parent_data

pointer to parent struct irq_data to support hierarchy irq_domain

chip_data

platform-specific per-chip private data for the chip methods, to allow shared chip implementations

AUTHORS

Thomas Gleixner <tglx@linutronix.de>
Author.

Ingo Molnar <mingo@elte.hu>

Author.

COPYRIGHT

April 2019 Kernel Hackers Manual 4.9.