#include <linux/irq.h>
#include <linux/msi.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
#include <trace/events/irq.h>
#include "internals.h"
Go to the source code of this file.
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| int | irq_set_chip (unsigned int irq, struct irq_chip *chip) |
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| | EXPORT_SYMBOL (irq_set_chip) |
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| int | irq_set_irq_type (unsigned int irq, unsigned int type) |
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| | EXPORT_SYMBOL (irq_set_irq_type) |
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| int | irq_set_handler_data (unsigned int irq, void *data) |
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| | EXPORT_SYMBOL (irq_set_handler_data) |
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| int | irq_set_msi_desc (unsigned int irq, struct msi_desc *entry) |
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| int | irq_set_chip_data (unsigned int irq, void *data) |
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| | EXPORT_SYMBOL (irq_set_chip_data) |
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| struct irq_data * | irq_get_irq_data (unsigned int irq) |
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| | EXPORT_SYMBOL_GPL (irq_get_irq_data) |
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| int | irq_startup (struct irq_desc *desc, bool resend) |
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| void | irq_shutdown (struct irq_desc *desc) |
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| void | irq_enable (struct irq_desc *desc) |
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| void | irq_disable (struct irq_desc *desc) |
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| void | irq_percpu_enable (struct irq_desc *desc, unsigned int cpu) |
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| void | irq_percpu_disable (struct irq_desc *desc, unsigned int cpu) |
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| void | mask_irq (struct irq_desc *desc) |
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| void | unmask_irq (struct irq_desc *desc) |
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| void | handle_nested_irq (unsigned int irq) |
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| | EXPORT_SYMBOL_GPL (handle_nested_irq) |
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| void | handle_simple_irq (unsigned int irq, struct irq_desc *desc) |
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| | EXPORT_SYMBOL_GPL (handle_simple_irq) |
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| void | handle_level_irq (unsigned int irq, struct irq_desc *desc) |
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| | EXPORT_SYMBOL_GPL (handle_level_irq) |
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| void | handle_fasteoi_irq (unsigned int irq, struct irq_desc *desc) |
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| void | handle_edge_irq (unsigned int irq, struct irq_desc *desc) |
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| | EXPORT_SYMBOL (handle_edge_irq) |
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| void | handle_percpu_irq (unsigned int irq, struct irq_desc *desc) |
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| void | handle_percpu_devid_irq (unsigned int irq, struct irq_desc *desc) |
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| void | __irq_set_handler (unsigned int irq, irq_flow_handler_t handle, int is_chained, const char *name) |
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| | EXPORT_SYMBOL_GPL (__irq_set_handler) |
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| void | irq_set_chip_and_handler_name (unsigned int irq, struct irq_chip *chip, irq_flow_handler_t handle, const char *name) |
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| | EXPORT_SYMBOL_GPL (irq_set_chip_and_handler_name) |
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| void | irq_modify_status (unsigned int irq, unsigned long clr, unsigned long set) |
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| | EXPORT_SYMBOL_GPL (irq_modify_status) |
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| void | irq_cpu_online (void) |
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| void | irq_cpu_offline (void) |
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handle_edge_irq - edge type IRQ handler : the interrupt number : the interrupt description structure for this irq
Interrupt occures on the falling and/or rising edge of a hardware signal. The occurrence is latched into the irq controller hardware and must be acked in order to be reenabled. After the ack another interrupt can happen on the same source even before the first one is handled by the associated event handler. If this happens it might be necessary to disable (mask) the interrupt depending on the controller hardware. This requires to reenable the interrupt inside of the loop which handles the interrupts which have arrived while the handler was running. If all pending interrupts are handled, the loop is left.
Definition at line 479 of file chip.c.
handle_fasteoi_irq - irq handler for transparent controllers : the interrupt number : the interrupt description structure for this irq
Only a single callback will be issued to the chip: an ->eoi() call when the interrupt has been serviced. This enables support for modern forms of interrupt handlers, which handle the flow details in hardware, transparently.
Definition at line 421 of file chip.c.
handle_level_irq - Level type irq handler : the interrupt number : the interrupt description structure for this irq
Level type interrupts are active as long as the hardware line has the active level. This may require to mask the interrupt and unmask it after the associated handler has acknowledged the device, so the interrupt line is back to inactive.
Definition at line 370 of file chip.c.
| void handle_nested_irq |
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unsigned int |
irq | ) |
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handle_percpu_devid_irq - Per CPU local irq handler with per cpu dev ids : the interrupt number : the interrupt description structure for this irq
Per CPU interrupts on SMP machines without locking requirements. Same as handle_percpu_irq() above but with the following extras:
action->percpu_dev_id is a pointer to percpu variables which contain the real device id for the cpu on which this handler is called
Definition at line 609 of file chip.c.
handle_percpu_irq - Per CPU local irq handler : the interrupt number : the interrupt description structure for this irq
Per CPU interrupts on SMP machines without locking requirements
Definition at line 582 of file chip.c.
handle_simple_irq - Simple and software-decoded IRQs. : the interrupt number : the interrupt description structure for this irq
Simple interrupts are either sent from a demultiplexing interrupt handler or come from hardware, where no interrupt hardware control is necessary.
Note: The caller is expected to handle the ack, clear, mask and unmask issues if necessary.
Definition at line 318 of file chip.c.
irq_cpu_offline - Invoke all irq_cpu_offline functions.
Iterate through all irqs and invoke the chip.irq_cpu_offline() for each.
Definition at line 738 of file chip.c.
irq_cpu_online - Invoke all irq_cpu_online functions.
Iterate through all irqs and invoke the chip.irq_cpu_online() for each.
Definition at line 708 of file chip.c.
| void irq_modify_status |
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unsigned int |
irq, |
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unsigned long |
clr, |
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unsigned long |
set |
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) |
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irq_set_chip - set the irq chip for an irq : irq number : pointer to irq chip description structure
Definition at line 28 of file chip.c.
| int irq_set_chip_data |
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unsigned int |
irq, |
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void * |
data |
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) |
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irq_set_chip_data - set irq chip data for an irq : Interrupt number : Pointer to chip specific data
Set the hardware irq chip data for an irq
Definition at line 120 of file chip.c.
| int irq_set_handler_data |
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unsigned int |
irq, |
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void * |
data |
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) |
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irq_set_handler_data - set irq handler data for an irq : Interrupt number : Pointer to interrupt specific data
Set the hardware irq controller data for an irq
Definition at line 79 of file chip.c.
| int irq_set_irq_type |
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unsigned int |
irq, |
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unsigned int |
type |
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) |
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irq_set_type - set the irq trigger type for an irq : irq number : IRQ_TYPE_{LEVEL,EDGE}_* value - see include/linux/irq.h
Definition at line 56 of file chip.c.
irq_set_msi_desc - set MSI descriptor data for an irq : Interrupt number : Pointer to MSI descriptor data
Set the MSI descriptor entry for an irq
Definition at line 99 of file chip.c.
1.8.2