diff options
| -rw-r--r-- | drivers/irqchip/irq-ls-scfg-msi.c | 12 | ||||
| -rw-r--r-- | drivers/irqchip/irq-renesas-rzg2l.c | 1 | ||||
| -rw-r--r-- | drivers/irqchip/irq-sifive-plic.c | 7 | ||||
| -rw-r--r-- | include/linux/irqdomain.h | 2 | ||||
| -rw-r--r-- | include/linux/pci.h | 34 | ||||
| -rw-r--r-- | kernel/irq/generic-chip.c | 31 | ||||
| -rw-r--r-- | kernel/irq/matrix.c | 6 |
7 files changed, 64 insertions, 29 deletions
diff --git a/drivers/irqchip/irq-ls-scfg-msi.c b/drivers/irqchip/irq-ls-scfg-msi.c index f31a262fe438..15cf80b46322 100644 --- a/drivers/irqchip/irq-ls-scfg-msi.c +++ b/drivers/irqchip/irq-ls-scfg-msi.c @@ -17,7 +17,8 @@ #include <linux/irqdomain.h> #include <linux/of_irq.h> #include <linux/of_pci.h> -#include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/property.h> #include <linux/spinlock.h> #define MSI_IRQS_PER_MSIR 32 @@ -334,20 +335,17 @@ MODULE_DEVICE_TABLE(of, ls_scfg_msi_id); static int ls_scfg_msi_probe(struct platform_device *pdev) { - const struct of_device_id *match; struct ls_scfg_msi *msi_data; struct resource *res; int i, ret; - match = of_match_device(ls_scfg_msi_id, &pdev->dev); - if (!match) - return -ENODEV; - msi_data = devm_kzalloc(&pdev->dev, sizeof(*msi_data), GFP_KERNEL); if (!msi_data) return -ENOMEM; - msi_data->cfg = (struct ls_scfg_msi_cfg *) match->data; + msi_data->cfg = (struct ls_scfg_msi_cfg *)device_get_match_data(&pdev->dev); + if (!msi_data->cfg) + return -ENODEV; msi_data->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res); if (IS_ERR(msi_data->regs)) { diff --git a/drivers/irqchip/irq-renesas-rzg2l.c b/drivers/irqchip/irq-renesas-rzg2l.c index 96f4e322ed6b..fe8d516f3614 100644 --- a/drivers/irqchip/irq-renesas-rzg2l.c +++ b/drivers/irqchip/irq-renesas-rzg2l.c @@ -247,6 +247,7 @@ static const struct irq_chip irqc_chip = { .irq_set_irqchip_state = irq_chip_set_parent_state, .irq_retrigger = irq_chip_retrigger_hierarchy, .irq_set_type = rzg2l_irqc_set_type, + .irq_set_affinity = irq_chip_set_affinity_parent, .flags = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_SET_TYPE_MASKED | IRQCHIP_SKIP_SET_WAKE, diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c index e1484905b7bd..5b7bc4fd9517 100644 --- a/drivers/irqchip/irq-sifive-plic.c +++ b/drivers/irqchip/irq-sifive-plic.c @@ -532,17 +532,18 @@ done: } /* - * We can have multiple PLIC instances so setup cpuhp state only - * when context handler for current/boot CPU is present. + * We can have multiple PLIC instances so setup cpuhp state + * and register syscore operations only when context handler + * for current/boot CPU is present. */ handler = this_cpu_ptr(&plic_handlers); if (handler->present && !plic_cpuhp_setup_done) { cpuhp_setup_state(CPUHP_AP_IRQ_SIFIVE_PLIC_STARTING, "irqchip/sifive/plic:starting", plic_starting_cpu, plic_dying_cpu); + register_syscore_ops(&plic_irq_syscore_ops); plic_cpuhp_setup_done = true; } - register_syscore_ops(&plic_irq_syscore_ops); pr_info("%pOFP: mapped %d interrupts with %d handlers for" " %d contexts.\n", node, nr_irqs, nr_handlers, nr_contexts); diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 51c254b7fec2..ee0a82c60508 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -174,7 +174,7 @@ struct irq_domain { irq_hw_number_t hwirq_max; unsigned int revmap_size; struct radix_tree_root revmap_tree; - struct irq_data __rcu *revmap[]; + struct irq_data __rcu *revmap[] __counted_by(revmap_size); }; /* Irq domain flags */ diff --git a/include/linux/pci.h b/include/linux/pci.h index 8c7c2c3c6c65..b56417276042 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1624,6 +1624,8 @@ struct msix_entry { u16 entry; /* Driver uses to specify entry, OS writes */ }; +struct msi_domain_template; + #ifdef CONFIG_PCI_MSI int pci_msi_vec_count(struct pci_dev *dev); void pci_disable_msi(struct pci_dev *dev); @@ -1656,6 +1658,11 @@ void pci_msix_free_irq(struct pci_dev *pdev, struct msi_map map); void pci_free_irq_vectors(struct pci_dev *dev); int pci_irq_vector(struct pci_dev *dev, unsigned int nr); const struct cpumask *pci_irq_get_affinity(struct pci_dev *pdev, int vec); +bool pci_create_ims_domain(struct pci_dev *pdev, const struct msi_domain_template *template, + unsigned int hwsize, void *data); +struct msi_map pci_ims_alloc_irq(struct pci_dev *pdev, union msi_instance_cookie *icookie, + const struct irq_affinity_desc *affdesc); +void pci_ims_free_irq(struct pci_dev *pdev, struct msi_map map); #else static inline int pci_msi_vec_count(struct pci_dev *dev) { return -ENOSYS; } @@ -1719,6 +1726,25 @@ static inline const struct cpumask *pci_irq_get_affinity(struct pci_dev *pdev, { return cpu_possible_mask; } + +static inline bool pci_create_ims_domain(struct pci_dev *pdev, + const struct msi_domain_template *template, + unsigned int hwsize, void *data) +{ return false; } + +static inline struct msi_map pci_ims_alloc_irq(struct pci_dev *pdev, + union msi_instance_cookie *icookie, + const struct irq_affinity_desc *affdesc) +{ + struct msi_map map = { .index = -ENOSYS, }; + + return map; +} + +static inline void pci_ims_free_irq(struct pci_dev *pdev, struct msi_map map) +{ +} + #endif /** @@ -2616,14 +2642,6 @@ static inline bool pci_is_thunderbolt_attached(struct pci_dev *pdev) void pci_uevent_ers(struct pci_dev *pdev, enum pci_ers_result err_type); #endif -struct msi_domain_template; - -bool pci_create_ims_domain(struct pci_dev *pdev, const struct msi_domain_template *template, - unsigned int hwsize, void *data); -struct msi_map pci_ims_alloc_irq(struct pci_dev *pdev, union msi_instance_cookie *icookie, - const struct irq_affinity_desc *affdesc); -void pci_ims_free_irq(struct pci_dev *pdev, struct msi_map map); - #include <linux/dma-mapping.h> #define pci_printk(level, pdev, fmt, arg...) \ diff --git a/kernel/irq/generic-chip.c b/kernel/irq/generic-chip.c index c653cd31548d..d39a40bc542b 100644 --- a/kernel/irq/generic-chip.c +++ b/kernel/irq/generic-chip.c @@ -219,11 +219,15 @@ void irq_init_generic_chip(struct irq_chip_generic *gc, const char *name, int num_ct, unsigned int irq_base, void __iomem *reg_base, irq_flow_handler_t handler) { + struct irq_chip_type *ct = gc->chip_types; + int i; + raw_spin_lock_init(&gc->lock); gc->num_ct = num_ct; gc->irq_base = irq_base; gc->reg_base = reg_base; - gc->chip_types->chip.name = name; + for (i = 0; i < num_ct; i++) + ct[i].chip.name = name; gc->chip_types->handler = handler; } @@ -544,21 +548,34 @@ EXPORT_SYMBOL_GPL(irq_setup_alt_chip); void irq_remove_generic_chip(struct irq_chip_generic *gc, u32 msk, unsigned int clr, unsigned int set) { - unsigned int i = gc->irq_base; + unsigned int i, virq; raw_spin_lock(&gc_lock); list_del(&gc->list); raw_spin_unlock(&gc_lock); - for (; msk; msk >>= 1, i++) { + for (i = 0; msk; msk >>= 1, i++) { if (!(msk & 0x01)) continue; + /* + * Interrupt domain based chips store the base hardware + * interrupt number in gc::irq_base. Otherwise gc::irq_base + * contains the base Linux interrupt number. + */ + if (gc->domain) { + virq = irq_find_mapping(gc->domain, gc->irq_base + i); + if (!virq) + continue; + } else { + virq = gc->irq_base + i; + } + /* Remove handler first. That will mask the irq line */ - irq_set_handler(i, NULL); - irq_set_chip(i, &no_irq_chip); - irq_set_chip_data(i, NULL); - irq_modify_status(i, clr, set); + irq_set_handler(virq, NULL); + irq_set_chip(virq, &no_irq_chip); + irq_set_chip_data(virq, NULL); + irq_modify_status(virq, clr, set); } } EXPORT_SYMBOL_GPL(irq_remove_generic_chip); diff --git a/kernel/irq/matrix.c b/kernel/irq/matrix.c index 1698e77645ac..75d0ae490e29 100644 --- a/kernel/irq/matrix.c +++ b/kernel/irq/matrix.c @@ -466,16 +466,16 @@ unsigned int irq_matrix_reserved(struct irq_matrix *m) } /** - * irq_matrix_allocated - Get the number of allocated irqs on the local cpu + * irq_matrix_allocated - Get the number of allocated non-managed irqs on the local CPU * @m: Pointer to the matrix to search * - * This returns number of allocated irqs + * This returns number of allocated non-managed interrupts. */ unsigned int irq_matrix_allocated(struct irq_matrix *m) { struct cpumap *cm = this_cpu_ptr(m->maps); - return cm->allocated; + return cm->allocated - cm->managed_allocated; } #ifdef CONFIG_GENERIC_IRQ_DEBUGFS |