irq_32.c File Reference

#include <linux/kernel_stat.h>
#include <linux/seq_file.h>
#include <linux/export.h>
#include <asm/cacheflush.h>
#include <asm/cpudata.h>
#include <asm/pcic.h>
#include <asm/leon.h>
#include "kernel.h"
#include "irq.h"

Go to the source code of this file.

Functions
unsigned long	arch_local_irq_save (void)
	EXPORT_SYMBOL (arch_local_irq_save)
void	arch_local_irq_enable (void)
	EXPORT_SYMBOL (arch_local_irq_enable)
void	arch_local_irq_restore (unsigned long old_psr)
	EXPORT_SYMBOL (arch_local_irq_restore)
unsigned int	irq_alloc (unsigned int real_irq, unsigned int pil)
void	irq_link (unsigned int irq)
void	irq_unlink (unsigned int irq)
int	arch_show_interrupts (struct seq_file *p, int prec)
void	handler_irq (unsigned int pil, struct pt_regs *regs)
void __init	init_IRQ (void)

Variables
struct sparc_config	sparc_config
struct irq_bucket *	irq_map [SUN4D_MAX_IRQ]

Function Documentation

void arch_local_irq_enable

(

void

)

Definition at line 47 of file irq_32.c.

void arch_local_irq_restore

(

unsigned long

old_psr

)

Definition at line 62 of file irq_32.c.

unsigned long arch_local_irq_save

(

void

)

Definition at line 29 of file irq_32.c.

int arch_show_interrupts	(	struct seq_file *	p,
		int	prec
	)

Definition at line 195 of file irq_32.c.

EXPORT_SYMBOL

(

arch_local_irq_save

)

EXPORT_SYMBOL

(

arch_local_irq_enable

)

EXPORT_SYMBOL

(

arch_local_irq_restore

)

void handler_irq	(	unsigned int	pil,
		struct pt_regs *	regs
	)

Definition at line 216 of file irq_32.c.

void __init init_IRQ

(

void

)

The hexagon core comes with a first-level interrupt controller with 32 total possible interrupts. When the core is embedded into different systems/platforms, it is typically wrapped by macro cells that provide one or more second-level interrupt controllers that are cascaded into one or more of the first-level interrupts handled here. The precise wiring of these other irqs varies from platform to platform, and are set up & configured in the platform-specific files.

The first-level interrupt controller is wrapped by the VM, which virtualizes the interrupt controller for us. It provides a very simple, fast & efficient API, and so the fasteoi handler is appropriate for this case.

Definition at line 337 of file irq_32.c.

unsigned int irq_alloc	(	unsigned int	real_irq,
		unsigned int	pil
	)

Definition at line 121 of file irq_32.c.

void irq_link

(

unsigned int

irq

)

Definition at line 155 of file irq_32.c.

void irq_unlink

(

unsigned int

irq

)

Definition at line 174 of file irq_32.c.

Variable Documentation

struct irq_bucket* irq_map[SUN4D_MAX_IRQ]

Definition at line 116 of file irq_32.c.

struct sparc_config sparc_config

Definition at line 27 of file irq_32.c.