diff options
| -rw-r--r-- | include/linux/irq.h | 54 | ||||
| -rw-r--r-- | include/linux/irqdesc.h | 3 | ||||
| -rw-r--r-- | kernel/irq/internals.h | 10 | ||||
| -rw-r--r-- | kernel/irq/irqdesc.c | 1 | ||||
| -rw-r--r-- | kernel/irq/irqdomain.c | 1 |
5 files changed, 41 insertions, 28 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index 48cb7d1aa58f..3c7fbe44edae 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -126,13 +126,21 @@ struct msi_desc; struct irq_domain; /** - * struct irq_data - per irq and irq chip data passed down to chip functions + * struct irq_common_data - per irq data shared by all irqchips + * @state_use_accessors: status information for irq chip functions. + * Use accessor functions to deal with it + */ +struct irq_common_data { + unsigned int state_use_accessors; +}; + +/** + * struct irq_data - per irq chip data passed down to chip functions * @mask: precomputed bitmask for accessing the chip registers * @irq: interrupt number * @hwirq: hardware interrupt number, local to the interrupt domain * @node: node index useful for balancing - * @state_use_accessors: status information for irq chip functions. - * Use accessor functions to deal with it + * @common: point to data shared by all irqchips * @chip: low level interrupt hardware access * @domain: Interrupt translation domain; responsible for mapping * between hwirq number and linux irq number. @@ -153,7 +161,7 @@ struct irq_data { unsigned int irq; unsigned long hwirq; unsigned int node; - unsigned int state_use_accessors; + struct irq_common_data *common; struct irq_chip *chip; struct irq_domain *domain; #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY @@ -166,7 +174,7 @@ struct irq_data { }; /* - * Bit masks for irq_data.state + * Bit masks for irq_common_data.state_use_accessors * * IRQD_TRIGGER_MASK - Mask for the trigger type bits * IRQD_SETAFFINITY_PENDING - Affinity setting is pending @@ -198,34 +206,36 @@ enum { IRQD_WAKEUP_ARMED = (1 << 19), }; +#define __irqd_to_state(d) ((d)->common->state_use_accessors) + static inline bool irqd_is_setaffinity_pending(struct irq_data *d) { - return d->state_use_accessors & IRQD_SETAFFINITY_PENDING; + return __irqd_to_state(d) & IRQD_SETAFFINITY_PENDING; } static inline bool irqd_is_per_cpu(struct irq_data *d) { - return d->state_use_accessors & IRQD_PER_CPU; + return __irqd_to_state(d) & IRQD_PER_CPU; } static inline bool irqd_can_balance(struct irq_data *d) { - return !(d->state_use_accessors & (IRQD_PER_CPU | IRQD_NO_BALANCING)); + return !(__irqd_to_state(d) & (IRQD_PER_CPU | IRQD_NO_BALANCING)); } static inline bool irqd_affinity_was_set(struct irq_data *d) { - return d->state_use_accessors & IRQD_AFFINITY_SET; + return __irqd_to_state(d) & IRQD_AFFINITY_SET; } static inline void irqd_mark_affinity_was_set(struct irq_data *d) { - d->state_use_accessors |= IRQD_AFFINITY_SET; + __irqd_to_state(d) |= IRQD_AFFINITY_SET; } static inline u32 irqd_get_trigger_type(struct irq_data *d) { - return d->state_use_accessors & IRQD_TRIGGER_MASK; + return __irqd_to_state(d) & IRQD_TRIGGER_MASK; } /* @@ -233,43 +243,43 @@ static inline u32 irqd_get_trigger_type(struct irq_data *d) */ static inline void irqd_set_trigger_type(struct irq_data *d, u32 type) { - d->state_use_accessors &= ~IRQD_TRIGGER_MASK; - d->state_use_accessors |= type & IRQD_TRIGGER_MASK; + __irqd_to_state(d) &= ~IRQD_TRIGGER_MASK; + __irqd_to_state(d) |= type & IRQD_TRIGGER_MASK; } static inline bool irqd_is_level_type(struct irq_data *d) { - return d->state_use_accessors & IRQD_LEVEL; + return __irqd_to_state(d) & IRQD_LEVEL; } static inline bool irqd_is_wakeup_set(struct irq_data *d) { - return d->state_use_accessors & IRQD_WAKEUP_STATE; + return __irqd_to_state(d) & IRQD_WAKEUP_STATE; } static inline bool irqd_can_move_in_process_context(struct irq_data *d) { - return d->state_use_accessors & IRQD_MOVE_PCNTXT; + return __irqd_to_state(d) & IRQD_MOVE_PCNTXT; } static inline bool irqd_irq_disabled(struct irq_data *d) { - return d->state_use_accessors & IRQD_IRQ_DISABLED; + return __irqd_to_state(d) & IRQD_IRQ_DISABLED; } static inline bool irqd_irq_masked(struct irq_data *d) { - return d->state_use_accessors & IRQD_IRQ_MASKED; + return __irqd_to_state(d) & IRQD_IRQ_MASKED; } static inline bool irqd_irq_inprogress(struct irq_data *d) { - return d->state_use_accessors & IRQD_IRQ_INPROGRESS; + return __irqd_to_state(d) & IRQD_IRQ_INPROGRESS; } static inline bool irqd_is_wakeup_armed(struct irq_data *d) { - return d->state_use_accessors & IRQD_WAKEUP_ARMED; + return __irqd_to_state(d) & IRQD_WAKEUP_ARMED; } @@ -280,12 +290,12 @@ static inline bool irqd_is_wakeup_armed(struct irq_data *d) */ static inline void irqd_set_chained_irq_inprogress(struct irq_data *d) { - d->state_use_accessors |= IRQD_IRQ_INPROGRESS; + __irqd_to_state(d) |= IRQD_IRQ_INPROGRESS; } static inline void irqd_clr_chained_irq_inprogress(struct irq_data *d) { - d->state_use_accessors &= ~IRQD_IRQ_INPROGRESS; + __irqd_to_state(d) &= ~IRQD_IRQ_INPROGRESS; } static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index a113a8dc7438..c52d1480f272 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -17,7 +17,7 @@ struct pt_regs; /** * struct irq_desc - interrupt descriptor - * @irq_data: per irq and chip data passed down to chip functions + * @irq_common_data: per irq and chip data passed down to chip functions * @kstat_irqs: irq stats per cpu * @handle_irq: highlevel irq-events handler * @preflow_handler: handler called before the flow handler (currently used by sparc) @@ -47,6 +47,7 @@ struct pt_regs; * @name: flow handler name for /proc/interrupts output */ struct irq_desc { + struct irq_common_data irq_common_data; struct irq_data irq_data; unsigned int __percpu *kstat_irqs; irq_flow_handler_t handle_irq; diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h index b93d434e70bd..a1ed80d11800 100644 --- a/kernel/irq/internals.h +++ b/kernel/irq/internals.h @@ -168,27 +168,27 @@ irq_put_desc_unlock(struct irq_desc *desc, unsigned long flags) */ static inline void irqd_set_move_pending(struct irq_data *d) { - d->state_use_accessors |= IRQD_SETAFFINITY_PENDING; + __irqd_to_state(d) |= IRQD_SETAFFINITY_PENDING; } static inline void irqd_clr_move_pending(struct irq_data *d) { - d->state_use_accessors &= ~IRQD_SETAFFINITY_PENDING; + __irqd_to_state(d) &= ~IRQD_SETAFFINITY_PENDING; } static inline void irqd_clear(struct irq_data *d, unsigned int mask) { - d->state_use_accessors &= ~mask; + __irqd_to_state(d) &= ~mask; } static inline void irqd_set(struct irq_data *d, unsigned int mask) { - d->state_use_accessors |= mask; + __irqd_to_state(d) |= mask; } static inline bool irqd_has_set(struct irq_data *d, unsigned int mask) { - return d->state_use_accessors & mask; + return __irqd_to_state(d) & mask; } static inline void kstat_incr_irqs_this_cpu(unsigned int irq, struct irq_desc *desc) diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 99793b9b6d23..eac1aac906ea 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -76,6 +76,7 @@ static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node, { int cpu; + desc->irq_data.common = &desc->irq_common_data; desc->irq_data.irq = irq; desc->irq_data.chip = &no_irq_chip; desc->irq_data.chip_data = NULL; diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 7fac311057b8..3552b8750efd 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -834,6 +834,7 @@ static struct irq_data *irq_domain_insert_irq_data(struct irq_domain *domain, if (irq_data) { child->parent_data = irq_data; irq_data->irq = child->irq; + irq_data->common = child->common; irq_data->node = child->node; irq_data->domain = domain; } |