diff options
| -rw-r--r-- | arch/powerpc/sysdev/xics/icp-hv.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/xics/icp-native.c | 2 | ||||
| -rw-r--r-- | include/linux/irqdomain.h | 4 | ||||
| -rw-r--r-- | kernel/irq/irqdomain.c | 60 |
4 files changed, 3 insertions, 65 deletions
diff --git a/arch/powerpc/sysdev/xics/icp-hv.c b/arch/powerpc/sysdev/xics/icp-hv.c index 253dce98c16e..14469cf9df68 100644 --- a/arch/powerpc/sysdev/xics/icp-hv.c +++ b/arch/powerpc/sysdev/xics/icp-hv.c @@ -111,7 +111,7 @@ static unsigned int icp_hv_get_irq(void) if (vec == XICS_IRQ_SPURIOUS) return NO_IRQ; - irq = irq_radix_revmap_lookup(xics_host, vec); + irq = irq_find_mapping(xics_host, vec); if (likely(irq != NO_IRQ)) { xics_push_cppr(vec); return irq; diff --git a/arch/powerpc/sysdev/xics/icp-native.c b/arch/powerpc/sysdev/xics/icp-native.c index 4c79b6fbee1c..48861d3fcd07 100644 --- a/arch/powerpc/sysdev/xics/icp-native.c +++ b/arch/powerpc/sysdev/xics/icp-native.c @@ -119,7 +119,7 @@ static unsigned int icp_native_get_irq(void) if (vec == XICS_IRQ_SPURIOUS) return NO_IRQ; - irq = irq_radix_revmap_lookup(xics_host, vec); + irq = irq_find_mapping(xics_host, vec); if (likely(irq != NO_IRQ)) { xics_push_cppr(vec); return irq; diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index eab8a0e60b8e..0d5b17bf5e51 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -174,10 +174,6 @@ static inline int irq_create_identity_mapping(struct irq_domain *host, return irq_create_strict_mappings(host, hwirq, hwirq, 1); } -extern void irq_radix_revmap_insert(struct irq_domain *host, unsigned int virq, - irq_hw_number_t hwirq); -extern unsigned int irq_radix_revmap_lookup(struct irq_domain *host, - irq_hw_number_t hwirq); extern unsigned int irq_linear_revmap(struct irq_domain *host, irq_hw_number_t hwirq); diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index a07d92446b66..f540bb1eff84 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -450,7 +450,7 @@ int irq_domain_associate_many(struct irq_domain *domain, unsigned int irq_base, break; case IRQ_DOMAIN_MAP_TREE: mutex_lock(&revmap_trees_mutex); - irq_radix_revmap_insert(domain, virq, hwirq); + radix_tree_insert(&domain->revmap_data.tree, hwirq, irq_data); mutex_unlock(&revmap_trees_mutex); break; } @@ -724,64 +724,6 @@ unsigned int irq_find_mapping(struct irq_domain *domain, EXPORT_SYMBOL_GPL(irq_find_mapping); /** - * irq_radix_revmap_lookup() - Find a linux irq from a hw irq number. - * @domain: domain owning this hardware interrupt - * @hwirq: hardware irq number in that domain space - * - * This is a fast path, for use by irq controller code that uses radix tree - * revmaps - */ -unsigned int irq_radix_revmap_lookup(struct irq_domain *domain, - irq_hw_number_t hwirq) -{ - struct irq_data *irq_data; - - if (WARN_ON_ONCE(domain->revmap_type != IRQ_DOMAIN_MAP_TREE)) - return irq_find_mapping(domain, hwirq); - - /* - * Freeing an irq can delete nodes along the path to - * do the lookup via call_rcu. - */ - rcu_read_lock(); - irq_data = radix_tree_lookup(&domain->revmap_data.tree, hwirq); - rcu_read_unlock(); - - /* - * If found in radix tree, then fine. - * Else fallback to linear lookup - this should not happen in practice - * as it means that we failed to insert the node in the radix tree. - */ - return irq_data ? irq_data->irq : irq_find_mapping(domain, hwirq); -} -EXPORT_SYMBOL_GPL(irq_radix_revmap_lookup); - -/** - * irq_radix_revmap_insert() - Insert a hw irq to linux irq number mapping. - * @domain: domain owning this hardware interrupt - * @virq: linux irq number - * @hwirq: hardware irq number in that domain space - * - * This is for use by irq controllers that use a radix tree reverse - * mapping for fast lookup. - */ -void irq_radix_revmap_insert(struct irq_domain *domain, unsigned int virq, - irq_hw_number_t hwirq) -{ - struct irq_data *irq_data = irq_get_irq_data(virq); - - if (WARN_ON(domain->revmap_type != IRQ_DOMAIN_MAP_TREE)) - return; - - if (virq) { - mutex_lock(&revmap_trees_mutex); - radix_tree_insert(&domain->revmap_data.tree, hwirq, irq_data); - mutex_unlock(&revmap_trees_mutex); - } -} -EXPORT_SYMBOL_GPL(irq_radix_revmap_insert); - -/** * irq_linear_revmap() - Find a linux irq from a hw irq number. * @domain: domain owning this hardware interrupt * @hwirq: hardware irq number in that domain space |