1. NAME▲

struct_irq_data - per irq and irq chip data passed down to chip functions

2. SYNOPSIS ▲



 
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struct irq_data {
  unsigned int irq;
  unsigned long hwirq;
  unsigned int node;
  unsigned int state_use_accessors;
  struct irq_chip * chip;
  struct irq_domain * domain;
  void * handler_data;
  void * chip_data;
  struct msi_desc * msi_desc;
  cpumask_var_t affinity;
};

3. MEMBERS ▲

irq
    interrupt number

hwirq
    hardware interrupt number, local to the interrupt domain

node
    node index useful for balancing

state_use_accessors
    status information for irq chip functions. Use accessor functions to deal with it

chip
    low level interrupt hardware access

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

handler_data
    per-IRQ data for the irq_chip methods

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

msi_desc
    MSI descriptor

affinity
    IRQ affinity on SMP

4. DESCRIPTION ▲

The fields here need to overlay the ones in irq_desc until we cleaned up the direct references and switched everything over to irq_data.

5. AUTHORS ▲

Thomas Gleixner <>
    Author.

Ingo Molnar <>
    Author.

6. COPYRIGHT ▲