irq_ia64.c File Reference

#include <linux/module.h>
#include <linux/jiffies.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/kernel_stat.h>
#include <linux/ptrace.h>
#include <linux/signal.h>
#include <linux/smp.h>
#include <linux/threads.h>
#include <linux/bitops.h>
#include <linux/irq.h>
#include <linux/ratelimit.h>
#include <linux/acpi.h>
#include <linux/sched.h>
#include <asm/delay.h>
#include <asm/intrinsics.h>
#include <asm/io.h>
#include <asm/hw_irq.h>
#include <asm/machvec.h>
#include <asm/pgtable.h>
#include <asm/tlbflush.h>

Go to the source code of this file.

Macros
#define	IRQ_DEBUG   0
#define	IRQ_VECTOR_UNASSIGNED   (0)
#define	IRQ_UNUSED   (0)
#define	IRQ_USED   (1)
#define	IRQ_RSVD   (2)
#define	IS_RESCHEDULE(vec)   (0)
#define	IS_LOCAL_TLB_FLUSH(vec)   (0)

Functions
	EXPORT_SYMBOL (isa_irq_to_vector_map)
	DEFINE_SPINLOCK (vector_lock)
	DEFINE_PER_CPU (int[IA64_NUM_VECTORS], vector_irq)
int	check_irq_used (int irq)
int	bind_irq_vector (int irq, int vector, cpumask_t domain)
int	ia64_native_assign_irq_vector (int irq)
void	ia64_native_free_irq_vector (int vector)
int	reserve_irq_vector (int vector)
void	__setup_vector_irq (int cpu)
void	destroy_and_reserve_irq (unsigned int irq)
int	create_irq (void)
void	destroy_irq (unsigned int irq)
void	ia64_handle_irq (ia64_vector vector, struct pt_regs *regs)
void	ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action)
void __init	ia64_native_register_ipi (void)
void __init	init_IRQ (void)
void	ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect)

Variables
int	ia64_first_device_vector = IA64_DEF_FIRST_DEVICE_VECTOR
int	ia64_last_device_vector = IA64_DEF_LAST_DEVICE_VECTOR
void __iomem *	ipi_base_addr
__u8	isa_irq_to_vector_map [16]
struct irq_cfg irq_cfg[NR_IRQS]	__read_mostly

Macro Definition Documentation

#define IRQ_DEBUG   0

Definition at line 47 of file irq_ia64.c.

#define IRQ_RSVD   (2)

Definition at line 53 of file irq_ia64.c.

#define IRQ_UNUSED   (0)

Definition at line 51 of file irq_ia64.c.

#define IRQ_USED   (1)

Definition at line 52 of file irq_ia64.c.

#define IRQ_VECTOR_UNASSIGNED   (0)

Definition at line 49 of file irq_ia64.c.

#define IS_LOCAL_TLB_FLUSH

(

vec

)

(0)

Definition at line 443 of file irq_ia64.c.

#define IS_RESCHEDULE

(

vec

)

(0)

Definition at line 442 of file irq_ia64.c.

Function Documentation

void __setup_vector_irq

(

int

cpu

)

Definition at line 246 of file irq_ia64.c.

int bind_irq_vector	(	int	irq,
		int	vector,
		cpumask_t	domain
	)

Definition at line 158 of file irq_ia64.c.

int check_irq_used

(

int

irq

)

Definition at line 96 of file irq_ia64.c.

int create_irq

(

void

)

Definition at line 405 of file irq_ia64.c.

DEFINE_PER_CPU	(	int	[IA64_NUM_VECTORS],
		vector_irq
	)

DEFINE_SPINLOCK

(

vector_lock

)

void destroy_and_reserve_irq

(

unsigned int

irq

)

Definition at line 390 of file irq_ia64.c.

void destroy_irq

(

unsigned int

irq

)

Definition at line 432 of file irq_ia64.c.

EXPORT_SYMBOL

(

isa_irq_to_vector_map

)

void ia64_handle_irq	(	ia64_vector	vector,
		struct pt_regs *	regs
	)

Definition at line 451 of file irq_ia64.c.

int ia64_native_assign_irq_vector

(

int

irq

)

Definition at line 199 of file irq_ia64.c.

void ia64_native_free_irq_vector

(

int

vector

)

Definition at line 225 of file irq_ia64.c.

void __init ia64_native_register_ipi

(

void

)

Definition at line 641 of file irq_ia64.c.

void ia64_native_register_percpu_irq	(	ia64_vector	vec,
		struct irqaction *	action
	)

Definition at line 627 of file irq_ia64.c.

void ia64_send_ipi	(	int	cpu,
		int	vector,
		int	delivery_mode,
		int	redirect
	)

Definition at line 671 of file irq_ia64.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 651 of file irq_ia64.c.

int reserve_irq_vector

(

int

vector

)

Definition at line 234 of file irq_ia64.c.

Variable Documentation

struct irq_cfg irq_cfg [NR_IRQS] __read_mostly

Initial value:

= {
    [0 ... NR_IRQS - 1] = {
        .vector = IRQ_VECTOR_UNASSIGNED,
        .domain = CPU_MASK_NONE
    }
}

Definition at line 77 of file irq_ia64.c.

int ia64_first_device_vector = IA64_DEF_FIRST_DEVICE_VECTOR

Definition at line 56 of file irq_ia64.c.

int ia64_last_device_vector = IA64_DEF_LAST_DEVICE_VECTOR

Definition at line 57 of file irq_ia64.c.

void __iomem* ipi_base_addr

Initial value:

= ((void __iomem *)
                   (__IA64_UNCACHED_OFFSET | IA64_IPI_DEFAULT_BASE_ADDR))

Definition at line 60 of file irq_ia64.c.

__u8 isa_irq_to_vector_map[16]

Initial value:

= {
    
    0x2f, 0x20, 0x2e, 0x2d, 0x2c, 0x2b, 0x2a, 0x29,
    0x28, 0x27, 0x26, 0x25, 0x24, 0x23, 0x22, 0x21
}

Definition at line 68 of file irq_ia64.c.