diff options
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/Kconfig | 4 | ||||
| -rw-r--r-- | kernel/irq/chip.c | 16 | ||||
| -rw-r--r-- | kernel/irq/debugfs.c | 5 | ||||
| -rw-r--r-- | kernel/irq/irqdomain.c | 3 | ||||
| -rw-r--r-- | kernel/irq/manage.c | 41 | ||||
| -rw-r--r-- | kernel/irq/resend.c | 2 |
6 files changed, 49 insertions, 22 deletions
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig index 20512252ecc9..10a5aff4eecc 100644 --- a/kernel/irq/Kconfig +++ b/kernel/irq/Kconfig @@ -51,10 +51,6 @@ config GENERIC_IRQ_INJECTION config HARDIRQS_SW_RESEND bool -# Preflow handler support for fasteoi (sparc64) -config IRQ_PREFLOW_FASTEOI - bool - # Edge style eoi based handler (cell) config IRQ_EDGE_EOI_HANDLER bool diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 41e7e37a0928..857f5f4c8098 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -656,16 +656,6 @@ out_unlock: } EXPORT_SYMBOL_GPL(handle_level_irq); -#ifdef CONFIG_IRQ_PREFLOW_FASTEOI -static inline void preflow_handler(struct irq_desc *desc) -{ - if (desc->preflow_handler) - desc->preflow_handler(&desc->irq_data); -} -#else -static inline void preflow_handler(struct irq_desc *desc) { } -#endif - static void cond_unmask_eoi_irq(struct irq_desc *desc, struct irq_chip *chip) { if (!(desc->istate & IRQS_ONESHOT)) { @@ -721,7 +711,6 @@ void handle_fasteoi_irq(struct irq_desc *desc) if (desc->istate & IRQS_ONESHOT) mask_irq(desc); - preflow_handler(desc); handle_irq_event(desc); cond_unmask_eoi_irq(desc, chip); @@ -1231,7 +1220,6 @@ void handle_fasteoi_ack_irq(struct irq_desc *desc) /* Start handling the irq */ desc->irq_data.chip->irq_ack(&desc->irq_data); - preflow_handler(desc); handle_irq_event(desc); cond_unmask_eoi_irq(desc, chip); @@ -1281,7 +1269,6 @@ void handle_fasteoi_mask_irq(struct irq_desc *desc) if (desc->istate & IRQS_ONESHOT) mask_irq(desc); - preflow_handler(desc); handle_irq_event(desc); cond_unmask_eoi_irq(desc, chip); @@ -1478,6 +1465,7 @@ int irq_chip_retrigger_hierarchy(struct irq_data *data) return 0; } +EXPORT_SYMBOL_GPL(irq_chip_retrigger_hierarchy); /** * irq_chip_set_vcpu_affinity_parent - Set vcpu affinity on the parent interrupt @@ -1492,7 +1480,7 @@ int irq_chip_set_vcpu_affinity_parent(struct irq_data *data, void *vcpu_info) return -ENOSYS; } - +EXPORT_SYMBOL_GPL(irq_chip_set_vcpu_affinity_parent); /** * irq_chip_set_wake_parent - Set/reset wake-up on the parent interrupt * @data: Pointer to interrupt specific data diff --git a/kernel/irq/debugfs.c b/kernel/irq/debugfs.c index 4f9f844074db..b95ff5d5f4bd 100644 --- a/kernel/irq/debugfs.c +++ b/kernel/irq/debugfs.c @@ -112,6 +112,7 @@ static const struct irq_bit_descr irqdata_states[] = { BIT_MASK_DESCR(IRQD_AFFINITY_SET), BIT_MASK_DESCR(IRQD_SETAFFINITY_PENDING), BIT_MASK_DESCR(IRQD_AFFINITY_MANAGED), + BIT_MASK_DESCR(IRQD_AFFINITY_ON_ACTIVATE), BIT_MASK_DESCR(IRQD_MANAGED_SHUTDOWN), BIT_MASK_DESCR(IRQD_CAN_RESERVE), BIT_MASK_DESCR(IRQD_MSI_NOMASK_QUIRK), @@ -120,6 +121,10 @@ static const struct irq_bit_descr irqdata_states[] = { BIT_MASK_DESCR(IRQD_WAKEUP_STATE), BIT_MASK_DESCR(IRQD_WAKEUP_ARMED), + + BIT_MASK_DESCR(IRQD_DEFAULT_TRIGGER_SET), + + BIT_MASK_DESCR(IRQD_HANDLE_ENFORCE_IRQCTX), }; static const struct irq_bit_descr irqdesc_states[] = { diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index a4c2c915511d..76cd7ebd1178 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -142,7 +142,7 @@ struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, int size, if (!domain) return NULL; - if (fwnode && is_fwnode_irqchip(fwnode)) { + if (is_fwnode_irqchip(fwnode)) { fwid = container_of(fwnode, struct irqchip_fwid, fwnode); switch (fwid->type) { @@ -281,6 +281,7 @@ void irq_domain_update_bus_token(struct irq_domain *domain, mutex_unlock(&irq_domain_mutex); } +EXPORT_SYMBOL_GPL(irq_domain_update_bus_token); /** * irq_domain_add_simple() - Register an irq_domain and optionally map a range of irqs diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 761911168438..48c38e09c673 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -195,9 +195,9 @@ void irq_set_thread_affinity(struct irq_desc *desc) set_bit(IRQTF_AFFINITY, &action->thread_flags); } +#ifdef CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK static void irq_validate_effective_affinity(struct irq_data *data) { -#ifdef CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK const struct cpumask *m = irq_data_get_effective_affinity_mask(data); struct irq_chip *chip = irq_data_get_irq_chip(data); @@ -205,9 +205,19 @@ static void irq_validate_effective_affinity(struct irq_data *data) return; pr_warn_once("irq_chip %s did not update eff. affinity mask of irq %u\n", chip->name, data->irq); -#endif } +static inline void irq_init_effective_affinity(struct irq_data *data, + const struct cpumask *mask) +{ + cpumask_copy(irq_data_get_effective_affinity_mask(data), mask); +} +#else +static inline void irq_validate_effective_affinity(struct irq_data *data) { } +static inline void irq_init_effective_affinity(struct irq_data *data, + const struct cpumask *mask) { } +#endif + int irq_do_set_affinity(struct irq_data *data, const struct cpumask *mask, bool force) { @@ -304,6 +314,30 @@ static int irq_try_set_affinity(struct irq_data *data, return ret; } +static bool irq_set_affinity_deactivated(struct irq_data *data, + const struct cpumask *mask, bool force) +{ + struct irq_desc *desc = irq_data_to_desc(data); + + /* + * Handle irq chips which can handle affinity only in activated + * state correctly + * + * If the interrupt is not yet activated, just store the affinity + * mask and do not call the chip driver at all. On activation the + * driver has to make sure anyway that the interrupt is in a + * useable state so startup works. + */ + if (!IS_ENABLED(CONFIG_IRQ_DOMAIN_HIERARCHY) || + irqd_is_activated(data) || !irqd_affinity_on_activate(data)) + return false; + + cpumask_copy(desc->irq_common_data.affinity, mask); + irq_init_effective_affinity(data, mask); + irqd_set(data, IRQD_AFFINITY_SET); + return true; +} + int irq_set_affinity_locked(struct irq_data *data, const struct cpumask *mask, bool force) { @@ -314,6 +348,9 @@ int irq_set_affinity_locked(struct irq_data *data, const struct cpumask *mask, if (!chip || !chip->irq_set_affinity) return -EINVAL; + if (irq_set_affinity_deactivated(data, mask, force)) + return 0; + if (irq_can_move_pcntxt(data) && !irqd_is_setaffinity_pending(data)) { ret = irq_try_set_affinity(data, mask, force); } else { diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c index 27634f4022d0..c48ce19a257f 100644 --- a/kernel/irq/resend.c +++ b/kernel/irq/resend.c @@ -45,7 +45,7 @@ static void resend_irqs(unsigned long arg) } /* Tasklet to handle resend: */ -static DECLARE_TASKLET(resend_tasklet, resend_irqs, 0); +static DECLARE_TASKLET_OLD(resend_tasklet, resend_irqs); static int irq_sw_resend(struct irq_desc *desc) { |