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genirq: Add IRQ_INPROGRESS to core

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We need to maintain the flag for now in both fields status and istate.
Add a CONFIG_GENERIC_HARDIRQS_NO_COMPAT switch to allow testing w/o
the status one. Wrap the access to status IRQ_INPROGRESS in a inline
which can be turned of with CONFIG_GENERIC_HARDIRQS_NO_COMPAT along
with the define.

There is no reason that anything outside of core looks at this. That
needs some modifications, but we'll get there.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner
2011-02-07 21:48:49 +01:00
parent 6954b75b48
commit 009b4c3b8a
9 changed files with 57 additions and 22 deletions
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6
include/linux/irq.h
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@@ -50,7 +50,11 @@ typedef void (*irq_flow_handler_t)(unsigned int irq,
#define IRQ_TYPE_PROBE 0x00000010 /* Probing in progress */
/* Internal flags */
#define IRQ_INPROGRESS 0x00000100 /* IRQ handler active - do not enter! */
#ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT
#define IRQ_INPROGRESS 0x00000100 /* DEPRECATED */
#endif
#define IRQ_DISABLED 0x00000200 /* IRQ disabled - do not enter! */
#define IRQ_PENDING 0x00000400 /* IRQ pending - replay on enable */
#define IRQ_REPLAY 0x00000800 /* IRQ has been replayed but not acked yet */