other versions
- wheezy 3.2.78-1
STRUCT IRQ_DATA(9) | Structures | STRUCT IRQ_DATA(9) |
NAME¶
struct_irq_data - per irq and irq chip data passed down to chip functionsSYNOPSIS¶
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; #ifdef CONFIG_SMP cpumask_var_t affinity; #endif };
MEMBERS¶
irqinterrupt 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
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.AUTHORS¶
Thomas Gleixner <tglx@linutronix.de>Author.
Ingo Molnar <mingo@elte.hu>
Author.
COPYRIGHT¶
March 2016 | Kernel Hackers Manual 3.2. |