struct_irq_desc

Langue: en

Autres versions - même langue

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

Sommaire

NAME

struct_irq_desc - interrupt descriptor

SYNOPSIS

 struct irq_desc {
   irq_flow_handler_t handle_irq;
   struct irq_chip * chip;
   struct msi_desc * msi_desc;
   void * handler_data;
   void * chip_data;
   struct irqaction * action;
   unsigned int status;
   unsigned int depth;
   unsigned int wake_depth;
   unsigned int irq_count;
   unsigned int irqs_unhandled;
   unsigned long last_unhandled;
   spinlock_t lock;
 #ifdef CONFIG_SMP
   cpumask_t affinity;
   unsigned int cpu;
 #endif
 #if defined(CONFIG_GENERIC_PENDING_IRQ) || defined(CONFIG_IRQBALANCE)
   cpumask_t pending_mask;
 #endif
 #ifdef CONFIG_PROC_FS
   struct proc_dir_entry * dir;
 #endif
   const char * name;
 };

MEMBERS

handle_irq

highlevel irq-events handler [if NULL, __do_IRQ]

chip

low level interrupt hardware access

msi_desc

MSI descriptor

handler_data

per-IRQ data for the irq_chip methods

chip_data

platform-specific per-chip private data for the chip methods, to allow shared chip implementations

action

the irq action chain

status

status information

depth

disable-depth, for nested irq_disable calls

wake_depth

enable depth, for multiple set_irq_wake callers

irq_count

stats field to detect stalled irqs

irqs_unhandled

stats field for spurious unhandled interrupts

last_unhandled

aging timer for unhandled count

lock

locking for SMP

affinity

IRQ affinity on SMP

cpu

cpu index useful for balancing

pending_mask

pending rebalanced interrupts

dir

/proc/irq/ procfs entry

name

flow handler name for /proc/interrupts output

AUTHORS

Thomas Gleixner <tglx@linutronix.de>

Author.

Ingo Molnar <mingo@elte.hu>

Author.