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genirq: Add state field to irq_data

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Some chip implementations need to access certain status flags. With
sparse irqs that requires a lookup of the irq descriptor. Add a state
field which contains such flags.

Name it in a way which will make coders happy to access it with the
proper accessor functions. And it's easy to grep for.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2011-02-03 20:48:29 +01:00
commit 91c4991781
2 changed files with 4 additions and 0 deletions
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3
include/linux/irq.h
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@ -102,6 +102,8 @@ struct msi_desc;
* struct irq_data - per irq and irq chip data passed down to chip functions * struct irq_data - per irq and irq chip data passed down to chip functions
* @irq: interrupt number * @irq: interrupt number
* @node: node index useful for balancing * @node: node index useful for balancing
* @state_use_accessor: status information for irq chip functions.
* Use accessor functions to deal with it
* @chip: low level interrupt hardware access * @chip: low level interrupt hardware access
* @handler_data: per-IRQ data for the irq_chip methods * @handler_data: per-IRQ data for the irq_chip methods
* @chip_data: platform-specific per-chip private data for the chip * @chip_data: platform-specific per-chip private data for the chip
@ -116,6 +118,7 @@ struct msi_desc;
struct irq_data { struct irq_data {
unsigned int irq; unsigned int irq;
unsigned int node; unsigned int node;
unsigned int state_use_accessors;
struct irq_chip *chip; struct irq_chip *chip;
void *handler_data; void *handler_data;
void *chip_data; void *chip_data;

1
include/linux/irqdesc.h
View file

@ -48,6 +48,7 @@ struct irq_desc {
struct { struct {
unsigned int irq; unsigned int irq;
unsigned int node; unsigned int node;
unsigned int pad_do_not_even_think_about_it;
struct irq_chip *chip; struct irq_chip *chip;
void *handler_data; void *handler_data;
void *chip_data; void *chip_data;