linux/include/asm-alpha/irq.h
Jan Beulich 908dcecda1 [PATCH] adjust handle_IRR_event() return type
Correct the return type of handle_IRQ_event() (inconsistency noticed during
Xen development), and remove redundant declarations.  The return type
adjustment required breaking out the definition of irqreturn_t into a
separate header, in order to satisfy current include order dependencies.

Signed-off-by: Jan Beulich <jbeulich@novell.com>

Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Hirokazu Takata <takata.hirokazu@renesas.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 07:43:08 -07:00

95 lines
2.4 KiB
C

#ifndef _ALPHA_IRQ_H
#define _ALPHA_IRQ_H
/*
* linux/include/alpha/irq.h
*
* (C) 1994 Linus Torvalds
*/
#include <linux/linkage.h>
#if defined(CONFIG_ALPHA_GENERIC)
/* Here NR_IRQS is not exact, but rather an upper bound. This is used
many places throughout the kernel to size static arrays. That's ok,
we'll use alpha_mv.nr_irqs when we want the real thing. */
/* When LEGACY_START_ADDRESS is selected, we leave out:
TITAN
WILDFIRE
MARVEL
This helps keep the kernel object size reasonable for the majority
of machines.
*/
# if defined(CONFIG_ALPHA_LEGACY_START_ADDRESS)
# define NR_IRQS (128) /* max is RAWHIDE/TAKARA */
# else
# define NR_IRQS (32768 + 16) /* marvel - 32 pids */
# endif
#elif defined(CONFIG_ALPHA_CABRIOLET) || \
defined(CONFIG_ALPHA_EB66P) || \
defined(CONFIG_ALPHA_EB164) || \
defined(CONFIG_ALPHA_PC164) || \
defined(CONFIG_ALPHA_LX164)
# define NR_IRQS 35
#elif defined(CONFIG_ALPHA_EB66) || \
defined(CONFIG_ALPHA_EB64P) || \
defined(CONFIG_ALPHA_MIKASA)
# define NR_IRQS 32
#elif defined(CONFIG_ALPHA_ALCOR) || \
defined(CONFIG_ALPHA_MIATA) || \
defined(CONFIG_ALPHA_RUFFIAN) || \
defined(CONFIG_ALPHA_RX164) || \
defined(CONFIG_ALPHA_NORITAKE)
# define NR_IRQS 48
#elif defined(CONFIG_ALPHA_SABLE) || \
defined(CONFIG_ALPHA_SX164)
# define NR_IRQS 40
#elif defined(CONFIG_ALPHA_DP264) || \
defined(CONFIG_ALPHA_LYNX) || \
defined(CONFIG_ALPHA_SHARK) || \
defined(CONFIG_ALPHA_EIGER)
# define NR_IRQS 64
#elif defined(CONFIG_ALPHA_TITAN)
#define NR_IRQS 80
#elif defined(CONFIG_ALPHA_RAWHIDE) || \
defined(CONFIG_ALPHA_TAKARA)
# define NR_IRQS 128
#elif defined(CONFIG_ALPHA_WILDFIRE)
# define NR_IRQS 2048 /* enuff for 8 QBBs */
#elif defined(CONFIG_ALPHA_MARVEL)
# define NR_IRQS (32768 + 16) /* marvel - 32 pids*/
#else /* everyone else */
# define NR_IRQS 16
#endif
static __inline__ int irq_canonicalize(int irq)
{
/*
* XXX is this true for all Alpha's? The old serial driver
* did it this way for years without any complaints, so....
*/
return ((irq == 2) ? 9 : irq);
}
extern void disable_irq(unsigned int);
extern void disable_irq_nosync(unsigned int);
extern void enable_irq(unsigned int);
struct pt_regs;
extern void (*perf_irq)(unsigned long, struct pt_regs *);
#endif /* _ALPHA_IRQ_H */