linux/include/asm-parisc/irq.h
Karsten Wiese f26fdd5992 [PATCH] CHECK_IRQ_PER_CPU() to avoid dead code in __do_IRQ()
IRQ_PER_CPU is not used by all architectures.  This patch introduces the
macros ARCH_HAS_IRQ_PER_CPU and CHECK_IRQ_PER_CPU() to avoid the generation
of dead code in __do_IRQ().

ARCH_HAS_IRQ_PER_CPU is defined by architectures using IRQ_PER_CPU in their
include/asm_ARCH/irq.h file.

Through grepping the tree I found the following architectures currently use
IRQ_PER_CPU:

        cris, ia64, ppc, ppc64 and parisc.

Signed-off-by: Karsten Wiese <annabellesgarden@yahoo.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:29 -07:00

60 lines
1.3 KiB
C

/*
* include/asm-parisc/irq.h
*
* Copyright 2005 Matthew Wilcox <matthew@wil.cx>
*/
#ifndef _ASM_PARISC_IRQ_H
#define _ASM_PARISC_IRQ_H
#include <linux/config.h>
#include <asm/types.h>
#define NO_IRQ (-1)
#ifdef CONFIG_GSC
#define GSC_IRQ_BASE 16
#define GSC_IRQ_MAX 63
#define CPU_IRQ_BASE 64
#else
#define CPU_IRQ_BASE 16
#endif
#define TIMER_IRQ (CPU_IRQ_BASE + 0)
#define IPI_IRQ (CPU_IRQ_BASE + 1)
#define CPU_IRQ_MAX (CPU_IRQ_BASE + (BITS_PER_LONG - 1))
#define NR_IRQS (CPU_IRQ_MAX + 1)
/*
* IRQ line status macro IRQ_PER_CPU is used
*/
#define ARCH_HAS_IRQ_PER_CPU
static __inline__ int irq_canonicalize(int irq)
{
return (irq == 2) ? 9 : irq;
}
struct hw_interrupt_type;
/*
* Some useful "we don't have to do anything here" handlers. Should
* probably be provided by the generic code.
*/
void no_ack_irq(unsigned int irq);
void no_end_irq(unsigned int irq);
extern int txn_alloc_irq(unsigned int nbits);
extern int txn_claim_irq(int);
extern unsigned int txn_alloc_data(unsigned int);
extern unsigned long txn_alloc_addr(unsigned int);
extern int cpu_claim_irq(unsigned int irq, struct hw_interrupt_type *, void *);
extern int cpu_claim_irq(unsigned int irq, struct hw_interrupt_type *, void *);
/* soft power switch support (power.c) */
extern struct tasklet_struct power_tasklet;
#endif /* _ASM_PARISC_IRQ_H */