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r: 127032
b: refs/heads/master
c: 34616c8
h: refs/heads/master
v: v3
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Mike Frysinger authored and Bryan Wu committed Nov 18, 2008
1 parent fca3a40 commit 917b1d4
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2 changes: 1 addition & 1 deletion [refs]
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refs/heads/master: 8a86176c4aee493bf8eb1dce8190b2f63d70d130
refs/heads/master: 34616c8bbddebd4cc1a69d990bb6727f6987f5de
41 changes: 1 addition & 40 deletions trunk/arch/blackfin/include/asm/irq.h
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#ifndef _BFIN_IRQ_H_
#define _BFIN_IRQ_H_

/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h>*/
#include <mach/irq.h>
#include <asm/ptrace.h>

/*******************************************************************************
***** INTRODUCTION ***********
* On the Blackfin, the interrupt structure allows remmapping of the hardware
* levels.
* - I'm going to assume that the H/W level is going to stay at the default
* settings. If someone wants to go through and abstart this out, feel free
* to mod the interrupt numbering scheme.
* - I'm abstracting the interrupts so that uClinux does not know anything
* about the H/W levels. If you want to change the H/W AND keep the abstracted
* levels that uClinux sees, you should be able to do most of it here.
* - I've left the "abstract" numbering sparce in case someone wants to pull the
* interrupts apart (just the TX/RX for the various devices)
*******************************************************************************/

/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h>*/

/*
* Machine specific interrupt sources.
*
* Adding an interrupt service routine for a source with this bit
* set indicates a special machine specific interrupt source.
* The machine specific files define these sources.
*
* The IRQ_MACHSPEC bit is now gone - the only thing it did was to
* introduce unnecessary overhead.
*
* All interrupt handling is actually machine specific so it is better
* to use function pointers, as used by the Sparc port, and select the
* interrupt handling functions when initializing the kernel. This way
* we save some unnecessary overhead at run-time.
* 01/11/97 - Jes
*/

extern void ack_bad_irq(unsigned int irq);

static __inline__ int irq_canonicalize(int irq)
{
return irq;
}

/* count of spurious interrupts */
/* extern volatile unsigned int num_spurious; */

#ifndef NO_IRQ
#define NO_IRQ ((unsigned int)(-1))
#endif

#define SIC_SYSIRQ(irq) (irq - (IRQ_CORETMR + 1))

#endif /* _BFIN_IRQ_H_ */

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