1STRUCT IRQ_DATA(9)                Structures                STRUCT IRQ_DATA(9)
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3
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NAME

6       struct_irq_data - per irq and irq chip data passed down to chip
7       functions
8

SYNOPSIS

10       struct irq_data {
11         unsigned int irq;
12         unsigned long hwirq;
13         unsigned int node;
14         unsigned int state_use_accessors;
15         struct irq_chip * chip;
16         struct irq_domain * domain;
17         void * handler_data;
18         void * chip_data;
19         struct msi_desc * msi_desc;
20         cpumask_var_t affinity;
21       };
22

MEMBERS

24       irq
25           interrupt number
26
27       hwirq
28           hardware interrupt number, local to the interrupt domain
29
30       node
31           node index useful for balancing
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33       state_use_accessors
34           status information for irq chip functions. Use accessor functions
35           to deal with it
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37       chip
38           low level interrupt hardware access
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40       domain
41           Interrupt translation domain; responsible for mapping between hwirq
42           number and linux irq number.
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44       handler_data
45           per-IRQ data for the irq_chip methods
46
47       chip_data
48           platform-specific per-chip private data for the chip methods, to
49           allow shared chip implementations
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51       msi_desc
52           MSI descriptor
53
54       affinity
55           IRQ affinity on SMP
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DESCRIPTION

58       The fields here need to overlay the ones in irq_desc until we cleaned
59       up the direct references and switched everything over to irq_data.
60

AUTHORS

62       Thomas Gleixner <tglx@linutronix.de>
63           Author.
64
65       Ingo Molnar <mingo@elte.hu>
66           Author.
67

69Kernel Hackers Manual 3.10         June 2019                STRUCT IRQ_DATA(9)
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