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genirq: Cleanup irq.h
Put the constants into an enum and document them. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Thomas Gleixner
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f9e4989eb8
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5d4d8fc9ac
@ -36,44 +36,73 @@ typedef void (*irq_flow_handler_t)(unsigned int irq,
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/*
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* IRQ line status.
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*
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* Bits 0-7 are reserved for the IRQF_* bits in linux/interrupt.h
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* Bits 0-7 are the same as the IRQF_* bits in linux/interrupt.h
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*
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* IRQ_TYPE_NONE - default, unspecified type
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* IRQ_TYPE_EDGE_RISING - rising edge triggered
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* IRQ_TYPE_EDGE_FALLING - falling edge triggered
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* IRQ_TYPE_EDGE_BOTH - rising and falling edge triggered
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* IRQ_TYPE_LEVEL_HIGH - high level triggered
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* IRQ_TYPE_LEVEL_LOW - low level triggered
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* IRQ_TYPE_LEVEL_MASK - Mask to filter out the level bits
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* IRQ_TYPE_SENSE_MASK - Mask for all the above bits
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* IRQ_TYPE_PROBE - Special flag for probing in progress
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*
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* Bits which can be modified via irq_set/clear/modify_status_flags()
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* IRQ_LEVEL - Interrupt is level type. Will be also
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* updated in the code when the above trigger
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* bits are modified via set_irq_type()
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* IRQ_PER_CPU - Mark an interrupt PER_CPU. Will protect
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* it from affinity setting
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* IRQ_NOPROBE - Interrupt cannot be probed by autoprobing
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* IRQ_NOREQUEST - Interrupt cannot be requested via
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* request_irq()
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* IRQ_NOAUTOEN - Interrupt is not automatically enabled in
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* request/setup_irq()
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* IRQ_NO_BALANCING - Interrupt cannot be balanced (affinity set)
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* IRQ_MOVE_PCNTXT - Interrupt can be migrated from process context
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* IRQ_NESTED_TRHEAD - Interrupt nests into another thread
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*
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* Deprecated bits. They are kept updated as long as
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* CONFIG_GENERIC_HARDIRQS_NO_COMPAT is not set. Will go away soon. These bits
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* are internal state of the core code and if you really need to acces
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* them then talk to the genirq maintainer instead of hacking
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* something weird.
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*
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* IRQ types
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*/
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#define IRQ_TYPE_NONE 0x00000000 /* Default, unspecified type */
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#define IRQ_TYPE_EDGE_RISING 0x00000001 /* Edge rising type */
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#define IRQ_TYPE_EDGE_FALLING 0x00000002 /* Edge falling type */
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#define IRQ_TYPE_EDGE_BOTH (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING)
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#define IRQ_TYPE_LEVEL_HIGH 0x00000004 /* Level high type */
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#define IRQ_TYPE_LEVEL_LOW 0x00000008 /* Level low type */
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#define IRQ_TYPE_LEVEL_MASK (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)
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#define IRQ_TYPE_SENSE_MASK 0x0000000f /* Mask of the above */
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enum {
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IRQ_TYPE_NONE = 0x00000000,
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IRQ_TYPE_EDGE_RISING = 0x00000001,
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IRQ_TYPE_EDGE_FALLING = 0x00000002,
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IRQ_TYPE_EDGE_BOTH = (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING),
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IRQ_TYPE_LEVEL_HIGH = 0x00000004,
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IRQ_TYPE_LEVEL_LOW = 0x00000008,
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IRQ_TYPE_LEVEL_MASK = (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH),
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IRQ_TYPE_SENSE_MASK = 0x0000000f,
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#define IRQ_TYPE_PROBE 0x00000010 /* Probing in progress */
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IRQ_TYPE_PROBE = 0x00000010,
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/* Internal flags */
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IRQ_LEVEL = (1 << 8),
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IRQ_PER_CPU = (1 << 9),
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IRQ_NOPROBE = (1 << 10),
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IRQ_NOREQUEST = (1 << 11),
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IRQ_NOAUTOEN = (1 << 12),
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IRQ_NO_BALANCING = (1 << 13),
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IRQ_MOVE_PCNTXT = (1 << 14),
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IRQ_NESTED_THREAD = (1 << 15),
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#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
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#define IRQ_INPROGRESS 0x00000100 /* DEPRECATED */
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#define IRQ_REPLAY 0x00000200 /* DEPRECATED */
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#define IRQ_WAITING 0x00000400 /* DEPRECATED */
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#define IRQ_DISABLED 0x00000800 /* DEPRECATED */
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#define IRQ_PENDING 0x00001000 /* DEPRECATED */
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#define IRQ_MASKED 0x00002000 /* DEPRECATED */
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/* DEPRECATED use irq_setaffinity_pending() instead*/
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#define IRQ_MOVE_PENDING 0x00004000
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#define IRQ_AFFINITY_SET 0x02000000 /* DEPRECATED */
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IRQ_INPROGRESS = (1 << 16),
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IRQ_REPLAY = (1 << 17),
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IRQ_WAITING = (1 << 18),
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IRQ_DISABLED = (1 << 19),
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IRQ_PENDING = (1 << 20),
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IRQ_MASKED = (1 << 21),
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IRQ_MOVE_PENDING = (1 << 22),
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IRQ_AFFINITY_SET = (1 << 23),
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IRQ_WAKEUP = (1 << 24),
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#endif
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#define IRQ_LEVEL 0x00008000 /* IRQ level triggered */
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#define IRQ_PER_CPU 0x00010000 /* IRQ is per CPU */
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#define IRQ_NOPROBE 0x00020000 /* IRQ is not valid for probing */
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#define IRQ_NOREQUEST 0x00040000 /* IRQ cannot be requested */
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#define IRQ_NOAUTOEN 0x00080000 /* IRQ will not be enabled on request irq */
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#define IRQ_WAKEUP 0x00100000 /* IRQ triggers system wakeup */
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#define IRQ_NO_BALANCING 0x00400000 /* IRQ is excluded from balancing */
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#define IRQ_MOVE_PCNTXT 0x01000000 /* IRQ migration from process context */
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#define IRQ_NESTED_THREAD 0x10000000 /* IRQ is nested into another, no own handler thread */
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};
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#define IRQF_MODIFY_MASK \
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(IRQ_TYPE_SENSE_MASK | IRQ_NOPROBE | IRQ_NOREQUEST | \
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@ -15,37 +15,21 @@ enum {
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_IRQF_MODIFY_MASK = IRQF_MODIFY_MASK,
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};
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#undef IRQ_INPROGRESS
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#define IRQ_INPROGRESS GOT_YOU_MORON
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#undef IRQ_REPLAY
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#define IRQ_REPLAY GOT_YOU_MORON
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#undef IRQ_WAITING
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#define IRQ_WAITING GOT_YOU_MORON
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#undef IRQ_DISABLED
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#define IRQ_DISABLED GOT_YOU_MORON
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#undef IRQ_PENDING
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#define IRQ_PENDING GOT_YOU_MORON
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#undef IRQ_MASKED
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#define IRQ_MASKED GOT_YOU_MORON
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#undef IRQ_WAKEUP
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#define IRQ_WAKEUP GOT_YOU_MORON
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#undef IRQ_MOVE_PENDING
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#define IRQ_MOVE_PENDING GOT_YOU_MORON
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#undef IRQ_PER_CPU
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#define IRQ_PER_CPU GOT_YOU_MORON
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#undef IRQ_NO_BALANCING
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#define IRQ_NO_BALANCING GOT_YOU_MORON
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#undef IRQ_AFFINITY_SET
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#define IRQ_AFFINITY_SET GOT_YOU_MORON
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#undef IRQ_LEVEL
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#define IRQ_LEVEL GOT_YOU_MORON
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#undef IRQ_NOPROBE
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#define IRQ_NOPROBE GOT_YOU_MORON
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#undef IRQ_NOREQUEST
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#define IRQ_NOREQUEST GOT_YOU_MORON
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#undef IRQ_NOAUTOEN
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#define IRQ_NOAUTOEN GOT_YOU_MORON
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#undef IRQ_NESTED_THREAD
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#define IRQ_NESTED_THREAD GOT_YOU_MORON
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#undef IRQF_MODIFY_MASK
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#define IRQF_MODIFY_MASK GOT_YOU_MORON
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