STRUCT IRQ_AFFINITY_(9) Structures STRUCT IRQ_AFFINITY_(9)NAME
struct_irq_affinity_notify - context for notification of IRQ affinity changes
SYNOPSIS
struct irq_affinity_notify {
unsigned int irq;
struct kref kref;
struct work_struct work;
void (* notify) (struct irq_affinity_notify *, const cpumask_t *mask);
void (* release) (struct kref *ref);
};
MEMBERS
irq
Interrupt to which notification applies
kref
Reference count, for internal use
work
Work item, for internal use
notify
Function to be called on change. This will be called in process context.
release
Function to be called on release. This will be called in process context. Once registered, the structure must only be freed when this
function is called or later.
AUTHORS
Thomas Gleixner <tglx@linutronix.de>
Author.
Ingo Molnar <mingo@elte.hu>
Author.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 STRUCT IRQ_AFFINITY_(9)
Check Out this Related Man Page
STRUCT IRQ_DESC(9) Structures STRUCT IRQ_DESC(9)NAME
struct_irq_desc - interrupt descriptor
SYNOPSIS
struct irq_desc {
unsigned int irq;
struct timer_rand_state * timer_rand_state;
unsigned int * kstat_irqs;
#ifdef CONFIG_INTR_REMAP
struct irq_2_iommu * irq_2_iommu;
#endif
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 long last_unhandled;
unsigned int irqs_unhandled;
raw_spinlock_t lock;
#ifdef CONFIG_SMP
cpumask_var_t affinity;
unsigned int node;
#ifdef CONFIG_GENERIC_PENDING_IRQ
cpumask_var_t pending_mask;
#endif
#endif
atomic_t threads_active;
wait_queue_head_t wait_for_threads;
#ifdef CONFIG_PROC_FS
struct proc_dir_entry * dir;
#endif
const char * name;
};
MEMBERS
irq
interrupt number for this descriptor
timer_rand_state
pointer to timer rand state struct
kstat_irqs
irq stats per cpu
irq_2_iommu
iommu with this irq
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
last_unhandled
aging timer for unhandled count
irqs_unhandled
stats field for spurious unhandled interrupts
lock
locking for SMP
affinity
IRQ affinity on SMP
node
node index useful for balancing
pending_mask
pending rebalanced interrupts
threads_active
number of irqaction threads currently running
wait_for_threads
wait queue for sync_irq to wait for threaded handlers
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.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 STRUCT IRQ_DESC(9)
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