irq.c File Reference

#include <linux/module.h>
#include <linux/seq_file.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/kernel_stat.h>
#include <linux/uaccess.h>
#include <hv/drv_pcie_rc_intf.h>
#include <arch/spr_def.h>
#include <asm/traps.h>

Go to the source code of this file.

Macros
#define	IS_HW_CLEARED   1
#define	mask_irqs(irq_mask)   hv_disable_intr(irq_mask)
#define	unmask_irqs(irq_mask)   hv_enable_intr(irq_mask)
#define	clear_irqs(irq_mask)   hv_clear_intr(irq_mask)

Functions
	DEFINE_PER_CPU (unsigned long long, interrupts_enabled_mask)
	EXPORT_PER_CPU_SYMBOL (interrupts_enabled_mask)
	DEFINE_PER_CPU (irq_cpustat_t, irq_stat)
void __init	init_IRQ (void)
void __cpuinit	setup_irq_regs (void)
void	tile_irq_activate (unsigned int irq, int tile_irq_type)
	EXPORT_SYMBOL (tile_irq_activate)
void	ack_bad_irq (unsigned int irq)

Macro Definition Documentation

#define clear_irqs

(

irq_mask

)

hv_clear_intr(irq_mask)

#define IS_HW_CLEARED   1

Definition at line 26 of file irq.c.

#define mask_irqs

(

irq_mask

)

hv_disable_intr(irq_mask)

#define unmask_irqs

(

irq_mask

)

hv_enable_intr(irq_mask)

Function Documentation

void ack_bad_irq

(

unsigned int

irq

)

Definition at line 256 of file irq.c.

DEFINE_PER_CPU	(	unsigned long	long,
		interrupts_enabled_mask
	)

DEFINE_PER_CPU	(	irq_cpustat_t	,
		irq_stat
	)

Definition at line 40 of file irq.c.

EXPORT_PER_CPU_SYMBOL

(

interrupts_enabled_mask

)

EXPORT_SYMBOL

(

tile_irq_activate

)

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 218 of file irq.c.

void __cpuinit setup_irq_regs

(

void

)

Definition at line 223 of file irq.c.

void tile_irq_activate	(	unsigned int	irq,
		int	tile_irq_type
	)

Definition at line 232 of file irq.c.