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Commit 5d4d8fc9 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

genirq: Cleanup irq.h 



Put the constants into an enum and document them.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent f9e4989e

include/linux/irq.h

+62 −33
Original line number Diff line number Diff line
@@ -36,44 +36,73 @@ typedef void (*irq_flow_handler_t)(unsigned int irq, 
/*

 * IRQ line status.

 *

 * Bits 0-7 are reserved for the IRQF_* bits in linux/interrupt.h

 * Bits 0-7 are the same as the IRQF_* bits in linux/interrupt.h

 *

 * IRQ_TYPE_NONE		- default, unspecified type

 * IRQ_TYPE_EDGE_RISING		- rising edge triggered

 * IRQ_TYPE_EDGE_FALLING	- falling edge triggered

 * IRQ_TYPE_EDGE_BOTH		- rising and falling edge triggered

 * IRQ_TYPE_LEVEL_HIGH		- high level triggered

 * IRQ_TYPE_LEVEL_LOW		- low level triggered

 * IRQ_TYPE_LEVEL_MASK		- Mask to filter out the level bits

 * IRQ_TYPE_SENSE_MASK		- Mask for all the above bits

 * IRQ_TYPE_PROBE		- Special flag for probing in progress

 *

 * Bits which can be modified via irq_set/clear/modify_status_flags()

 * IRQ_LEVEL			- Interrupt is level type. Will be also

 *				  updated in the code when the above trigger

 *				  bits are modified via set_irq_type()

 * IRQ_PER_CPU			- Mark an interrupt PER_CPU. Will protect

 *				  it from affinity setting

 * IRQ_NOPROBE			- Interrupt cannot be probed by autoprobing

 * IRQ_NOREQUEST		- Interrupt cannot be requested via

 *				  request_irq()

 * IRQ_NOAUTOEN			- Interrupt is not automatically enabled in

 *				  request/setup_irq()

 * IRQ_NO_BALANCING		- Interrupt cannot be balanced (affinity set)

 * IRQ_MOVE_PCNTXT		- Interrupt can be migrated from process context

 * IRQ_NESTED_TRHEAD		- Interrupt nests into another thread

 *

 * Deprecated bits. They are kept updated as long as

 * CONFIG_GENERIC_HARDIRQS_NO_COMPAT is not set. Will go away soon. These bits

 * are internal state of the core code and if you really need to acces

 * them then talk to the genirq maintainer instead of hacking

 * something weird.

 *

 * IRQ types

 */

#define IRQ_TYPE_NONE		0x00000000	/* Default, unspecified type */

#define IRQ_TYPE_EDGE_RISING	0x00000001	/* Edge rising type */

#define IRQ_TYPE_EDGE_FALLING	0x00000002	/* Edge falling type */

#define IRQ_TYPE_EDGE_BOTH (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING)

#define IRQ_TYPE_LEVEL_HIGH	0x00000004	/* Level high type */

#define IRQ_TYPE_LEVEL_LOW	0x00000008	/* Level low type */

#define IRQ_TYPE_LEVEL_MASK	(IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)

#define IRQ_TYPE_SENSE_MASK	0x0000000f	/* Mask of the above */



#define IRQ_TYPE_PROBE		0x00000010	/* Probing in progress */



/* Internal flags */

enum {

	IRQ_TYPE_NONE		= 0x00000000,

	IRQ_TYPE_EDGE_RISING	= 0x00000001,

	IRQ_TYPE_EDGE_FALLING	= 0x00000002,

	IRQ_TYPE_EDGE_BOTH	= (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING),

	IRQ_TYPE_LEVEL_HIGH	= 0x00000004,

	IRQ_TYPE_LEVEL_LOW	= 0x00000008,

	IRQ_TYPE_LEVEL_MASK	= (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH),

	IRQ_TYPE_SENSE_MASK	= 0x0000000f,



	IRQ_TYPE_PROBE		= 0x00000010,



	IRQ_LEVEL		= (1 <<  8),

	IRQ_PER_CPU		= (1 <<  9),

	IRQ_NOPROBE		= (1 << 10),

	IRQ_NOREQUEST		= (1 << 11),

	IRQ_NOAUTOEN		= (1 << 12),

	IRQ_NO_BALANCING	= (1 << 13),

	IRQ_MOVE_PCNTXT		= (1 << 14),

	IRQ_NESTED_THREAD	= (1 << 15),



#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT

#define IRQ_INPROGRESS		0x00000100	/* DEPRECATED */

#define IRQ_REPLAY		0x00000200	/* DEPRECATED */

#define IRQ_WAITING		0x00000400	/* DEPRECATED */

#define IRQ_DISABLED		0x00000800	/* DEPRECATED */

#define IRQ_PENDING		0x00001000	/* DEPRECATED */

#define IRQ_MASKED		0x00002000	/* DEPRECATED */

/* DEPRECATED use irq_setaffinity_pending() instead*/

#define IRQ_MOVE_PENDING	0x00004000

#define IRQ_AFFINITY_SET	0x02000000	/* DEPRECATED */

	IRQ_INPROGRESS		= (1 << 16),

	IRQ_REPLAY		= (1 << 17),

	IRQ_WAITING		= (1 << 18),

	IRQ_DISABLED		= (1 << 19),

	IRQ_PENDING		= (1 << 20),

	IRQ_MASKED		= (1 << 21),

	IRQ_MOVE_PENDING	= (1 << 22),

	IRQ_AFFINITY_SET	= (1 << 23),

	IRQ_WAKEUP		= (1 << 24),

#endif



#define IRQ_LEVEL		0x00008000	/* IRQ level triggered */

#define IRQ_PER_CPU		0x00010000	/* IRQ is per CPU */

#define IRQ_NOPROBE		0x00020000	/* IRQ is not valid for probing */

#define IRQ_NOREQUEST		0x00040000	/* IRQ cannot be requested */

#define IRQ_NOAUTOEN		0x00080000	/* IRQ will not be enabled on request irq */

#define IRQ_WAKEUP		0x00100000	/* IRQ triggers system wakeup */

#define IRQ_NO_BALANCING	0x00400000	/* IRQ is excluded from balancing */

#define IRQ_MOVE_PCNTXT		0x01000000	/* IRQ migration from process context */

#define IRQ_NESTED_THREAD	0x10000000	/* IRQ is nested into another, no own handler thread */

};



#define IRQF_MODIFY_MASK	\

	(IRQ_TYPE_SENSE_MASK | IRQ_NOPROBE | IRQ_NOREQUEST | \

kernel/irq/settings.h

+0 −16
Original line number Diff line number Diff line
@@ -15,37 +15,21 @@ enum { 
	_IRQF_MODIFY_MASK	= IRQF_MODIFY_MASK,

};



#undef IRQ_INPROGRESS

#define IRQ_INPROGRESS		GOT_YOU_MORON

#undef IRQ_REPLAY

#define IRQ_REPLAY		GOT_YOU_MORON

#undef IRQ_WAITING

#define IRQ_WAITING		GOT_YOU_MORON

#undef IRQ_DISABLED

#define IRQ_DISABLED		GOT_YOU_MORON

#undef IRQ_PENDING

#define IRQ_PENDING		GOT_YOU_MORON

#undef IRQ_MASKED

#define IRQ_MASKED		GOT_YOU_MORON

#undef IRQ_WAKEUP

#define IRQ_WAKEUP		GOT_YOU_MORON

#undef IRQ_MOVE_PENDING

#define IRQ_MOVE_PENDING	GOT_YOU_MORON

#undef IRQ_PER_CPU

#define IRQ_PER_CPU		GOT_YOU_MORON

#undef IRQ_NO_BALANCING

#define IRQ_NO_BALANCING	GOT_YOU_MORON

#undef IRQ_AFFINITY_SET

#define IRQ_AFFINITY_SET	GOT_YOU_MORON

#undef IRQ_LEVEL

#define IRQ_LEVEL		GOT_YOU_MORON

#undef IRQ_NOPROBE

#define IRQ_NOPROBE		GOT_YOU_MORON

#undef IRQ_NOREQUEST

#define IRQ_NOREQUEST		GOT_YOU_MORON

#undef IRQ_NOAUTOEN

#define IRQ_NOAUTOEN		GOT_YOU_MORON

#undef IRQ_NESTED_THREAD

#define IRQ_NESTED_THREAD	GOT_YOU_MORON

#undef IRQF_MODIFY_MASK

#define IRQF_MODIFY_MASK	GOT_YOU_MORON