android_kernel_motorola_sm6225/include/asm-arm/mach/irq.h
Thomas Gleixner 4a2581a080 [ARM] 3692/1: ARM: coswitch irq handling to the generic implementation
Patch from Thomas Gleixner

From: Thomas Gleixner <tglx@linutronix.de>

Switch the ARM irq core handling to the generic implementation. The
ARM specific header files now contain mostly migration stubs and
helper macros. Note that each machine type must be converted after
this step seperately. This was seperated out from the patch for easier
review.

The main changes for the machine type code is the conversion of the
type handlers to a 'type flow' and 'chip' model. This affects only the
multiplex interrupt handlers. A conversion macro needs to be added to
those implementations, which defines the data structure which is
registered by the set_irq_chained_handler() macro.

Some minor fixups of include files and the conversion of data
structure access is necessary all over the place.

The mostly macro based conversion was provided to allow an easy
migration of the existing implementations.

The code compiles on all defconfigs available in arch/arm/configs
except those which were broken also before applying the conversion
patches.

The code has been boot and runtime tested on most ARM platforms. The
results of an extensive testing and bugfixing series can be found
at: http://www.linutronix.de/index.php?page=testing

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-01 22:30:09 +01:00

67 lines
1.5 KiB
C

/*
* linux/include/asm-arm/mach/irq.h
*
* Copyright (C) 1995-2000 Russell King.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARM_MACH_IRQ_H
#define __ASM_ARM_MACH_IRQ_H
#include <linux/irq.h>
struct seq_file;
/*
* This is internal. Do not use it.
*/
extern void (*init_arch_irq)(void);
extern void init_FIQ(void);
extern int show_fiq_list(struct seq_file *, void *);
/*
* Function wrappers
*/
#define set_irq_chipdata(irq, d) set_irq_chip_data(irq, d)
#define get_irq_chipdata(irq) get_irq_chip_data(irq)
/*
* Obsolete inline function for calling irq descriptor handlers.
*/
static inline void desc_handle_irq(unsigned int irq, struct irq_desc *desc,
struct pt_regs *regs)
{
desc->handle_irq(irq, desc, regs);
}
void set_irq_flags(unsigned int irq, unsigned int flags);
#define IRQF_VALID (1 << 0)
#define IRQF_PROBE (1 << 1)
#define IRQF_NOAUTOEN (1 << 2)
/*
* This is for easy migration, but should be changed in the source
*/
#define do_level_IRQ handle_level_irq
#define do_edge_IRQ handle_edge_irq
#define do_simple_IRQ handle_simple_irq
#define irqdesc irq_desc
#define irqchip irq_chip
#define do_bad_IRQ(irq,desc,regs) \
do { \
spin_lock(&desc->lock); \
handle_bad_irq(irq, desc, regs); \
spin_unlock(&desc->lock); \
} while(0)
extern unsigned long irq_err_count;
static inline void ack_bad_irq(int irq)
{
irq_err_count++;
}
#endif