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Merge branches 'irq-cleanup-for-linus' and 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

Browse source 
* 'irq-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  vlynq: Convert irq functions

* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  genirq; Fix cleanup fallout
  genirq: Fix typo and remove unused variable
  genirq: Fix new kernel-doc warnings
  genirq: Add setter for AFFINITY_SET in irq_data state
  genirq: Provide setter inline for IRQD_IRQ_INPROGRESS
  genirq: Remove handle_IRQ_event
  arm: Ns9xxx: Remove private irq flow handler
  powerpc: cell: Use the core flow handler
  genirq: Provide edge_eoi flow handler
  genirq: Move INPROGRESS, MASKED and DISABLED state flags to irq_data
  genirq: Split irq_set_affinity() so it can be called with lock held.
  genirq: Add chip flag for restricting cpu_on/offline calls
  genirq: Add chip hooks for taking CPUs on/off line.
  genirq: Add irq disabled flag to irq_data state
  genirq: Reserve the irq when calling irq_set_chip()
This commit is contained in:
Linus Torvalds 2011-03-28 17:39:54 -07:00
commit e5217fb8ae
14 changed files with 297 additions and 235 deletions
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59
include/linux/irq.h
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@ -135,7 +135,7 @@ struct msi_desc;
* struct irq_data - per irq and irq chip data passed down to chip functions
* @irq: interrupt number
* @node: node index useful for balancing
* @state_use_accessor: status information for irq chip functions.
* @state_use_accessors: status information for irq chip functions.
* Use accessor functions to deal with it
* @chip: low level interrupt hardware access
* @handler_data: per-IRQ data for the irq_chip methods
@ -174,6 +174,9 @@ struct irq_data {
* from suspend
* IRDQ_MOVE_PCNTXT - Interrupt can be moved in process
* context
* IRQD_IRQ_DISABLED - Disabled state of the interrupt
* IRQD_IRQ_MASKED - Masked state of the interrupt
* IRQD_IRQ_INPROGRESS - In progress state of the interrupt
*/
enum {
IRQD_TRIGGER_MASK = 0xf,
@ -184,6 +187,9 @@ enum {
IRQD_LEVEL = (1 << 13),
IRQD_WAKEUP_STATE = (1 << 14),
IRQD_MOVE_PCNTXT = (1 << 15),
IRQD_IRQ_DISABLED = (1 << 16),
IRQD_IRQ_MASKED = (1 << 17),
IRQD_IRQ_INPROGRESS = (1 << 18),
};
static inline bool irqd_is_setaffinity_pending(struct irq_data *d)
@ -206,6 +212,11 @@ static inline bool irqd_affinity_was_set(struct irq_data *d)
return d->state_use_accessors & IRQD_AFFINITY_SET;
}
static inline void irqd_mark_affinity_was_set(struct irq_data *d)
{
d->state_use_accessors |= IRQD_AFFINITY_SET;
}
static inline u32 irqd_get_trigger_type(struct irq_data *d)
{
return d->state_use_accessors & IRQD_TRIGGER_MASK;
@ -235,6 +246,36 @@ static inline bool irqd_can_move_in_process_context(struct irq_data *d)
return d->state_use_accessors & IRQD_MOVE_PCNTXT;
}
static inline bool irqd_irq_disabled(struct irq_data *d)
{
return d->state_use_accessors & IRQD_IRQ_DISABLED;
}
static inline bool irqd_irq_masked(struct irq_data *d)
{
return d->state_use_accessors & IRQD_IRQ_MASKED;
}
static inline bool irqd_irq_inprogress(struct irq_data *d)
{
return d->state_use_accessors & IRQD_IRQ_INPROGRESS;
}
/*
* Functions for chained handlers which can be enabled/disabled by the
* standard disable_irq/enable_irq calls. Must be called with
* irq_desc->lock held.
*/
static inline void irqd_set_chained_irq_inprogress(struct irq_data *d)
{
d->state_use_accessors |= IRQD_IRQ_INPROGRESS;
}
static inline void irqd_clr_chained_irq_inprogress(struct irq_data *d)
{
d->state_use_accessors &= ~IRQD_IRQ_INPROGRESS;
}
/**
* struct irq_chip - hardware interrupt chip descriptor
*
@ -271,6 +312,8 @@ static inline bool irqd_can_move_in_process_context(struct irq_data *d)
* @irq_set_wake: enable/disable power-management wake-on of an IRQ
* @irq_bus_lock: function to lock access to slow bus (i2c) chips
* @irq_bus_sync_unlock:function to sync and unlock slow bus (i2c) chips
* @irq_cpu_online: configure an interrupt source for a secondary CPU
* @irq_cpu_offline: un-configure an interrupt source for a secondary CPU
* @irq_print_chip: optional to print special chip info in show_interrupts
* @flags: chip specific flags
*
@ -319,6 +362,9 @@ struct irq_chip {
void (*irq_bus_lock)(struct irq_data *data);
void (*irq_bus_sync_unlock)(struct irq_data *data);
void (*irq_cpu_online)(struct irq_data *data);
void (*irq_cpu_offline)(struct irq_data *data);
void (*irq_print_chip)(struct irq_data *data, struct seq_file *p);
unsigned long flags;
@ -335,11 +381,14 @@ struct irq_chip {
* IRQCHIP_SET_TYPE_MASKED: Mask before calling chip.irq_set_type()
* IRQCHIP_EOI_IF_HANDLED: Only issue irq_eoi() when irq was handled
* IRQCHIP_MASK_ON_SUSPEND: Mask non wake irqs in the suspend path
* IRQCHIP_ONOFFLINE_ENABLED: Only call irq_on/off_line callbacks
* when irq enabled
*/
enum {
IRQCHIP_SET_TYPE_MASKED = (1 << 0),
IRQCHIP_EOI_IF_HANDLED = (1 << 1),
IRQCHIP_MASK_ON_SUSPEND = (1 << 2),
IRQCHIP_ONOFFLINE_ENABLED = (1 << 3),
};
/* This include will go away once we isolated irq_desc usage to core code */
@ -364,6 +413,10 @@ struct irqaction;
extern int setup_irq(unsigned int irq, struct irqaction *new);
extern void remove_irq(unsigned int irq, struct irqaction *act);
extern void irq_cpu_online(void);
extern void irq_cpu_offline(void);
extern int __irq_set_affinity_locked(struct irq_data *data, const struct cpumask *cpumask);
#ifdef CONFIG_GENERIC_HARDIRQS
#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_PENDING_IRQ)
@ -380,9 +433,6 @@ static inline void irq_move_masked_irq(struct irq_data *data) { }
extern int no_irq_affinity;
/* Handle irq action chains: */
extern irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action);
/*
* Built-in IRQ handlers for various IRQ types,
* callable via desc->handle_irq()
@ -390,6 +440,7 @@ extern irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action);
extern void handle_level_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_edge_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_edge_eoi_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_simple_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_percpu_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_bad_irq(unsigned int irq, struct irq_desc *desc);