diff options
Diffstat (limited to 'include/linux/of_irq.h')
| -rw-r--r-- | include/linux/of_irq.h | 133 |
1 files changed, 86 insertions, 47 deletions
diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h index 535cecf1e02f..1c2bc0281807 100644 --- a/include/linux/of_irq.h +++ b/include/linux/of_irq.h @@ -1,8 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __OF_IRQ_H #define __OF_IRQ_H -#if defined(CONFIG_OF) -struct of_irq; #include <linux/types.h> #include <linux/errno.h> #include <linux/irq.h> @@ -10,30 +9,6 @@ struct of_irq; #include <linux/ioport.h> #include <linux/of.h> -/* - * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC - * implements it differently. However, the prototype is the same for all, - * so declare it here regardless of the CONFIG_OF_IRQ setting. - */ -extern unsigned int irq_of_parse_and_map(struct device_node *node, int index); - -#if defined(CONFIG_OF_IRQ) -/** - * of_irq - container for device_node/irq_specifier pair for an irq controller - * @controller: pointer to interrupt controller device tree node - * @size: size of interrupt specifier - * @specifier: array of cells @size long specifing the specific interrupt - * - * This structure is returned when an interrupt is mapped. The controller - * field needs to be put() after use - */ -#define OF_MAX_IRQ_SPEC 4 /* We handle specifiers of at most 4 cells */ -struct of_irq { - struct device_node *controller; /* Interrupt controller node */ - u32 size; /* Specifier size */ - u32 specifier[OF_MAX_IRQ_SPEC]; /* Specifier copy */ -}; - typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *); /* @@ -45,49 +20,113 @@ typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *); #if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC) extern unsigned int of_irq_workarounds; extern struct device_node *of_irq_dflt_pic; -extern int of_irq_map_oldworld(struct device_node *device, int index, - struct of_irq *out_irq); +int of_irq_parse_oldworld(const struct device_node *device, int index, + struct of_phandle_args *out_irq); #else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */ #define of_irq_workarounds (0) #define of_irq_dflt_pic (NULL) -static inline int of_irq_map_oldworld(struct device_node *device, int index, - struct of_irq *out_irq) +static inline int of_irq_parse_oldworld(const struct device_node *device, int index, + struct of_phandle_args *out_irq) { return -EINVAL; } #endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */ - -extern int of_irq_map_raw(struct device_node *parent, const __be32 *intspec, - u32 ointsize, const __be32 *addr, - struct of_irq *out_irq); -extern int of_irq_map_one(struct device_node *device, int index, - struct of_irq *out_irq); -extern unsigned int irq_create_of_mapping(struct device_node *controller, - const u32 *intspec, - unsigned int intsize); +extern int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq); +extern unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data); extern int of_irq_to_resource(struct device_node *dev, int index, struct resource *r); + +#ifdef CONFIG_OF_IRQ +extern void of_irq_init(const struct of_device_id *matches); +extern int of_irq_parse_one(struct device_node *device, int index, + struct of_phandle_args *out_irq); extern int of_irq_count(struct device_node *dev); +extern int of_irq_get(struct device_node *dev, int index); +extern const struct cpumask *of_irq_get_affinity(struct device_node *dev, + int index); +extern int of_irq_get_byname(struct device_node *dev, const char *name); extern int of_irq_to_resource_table(struct device_node *dev, struct resource *res, int nr_irqs); extern struct device_node *of_irq_find_parent(struct device_node *child); +extern struct irq_domain *of_msi_get_domain(struct device *dev, + const struct device_node *np, + enum irq_domain_bus_token token); +extern struct irq_domain *of_msi_map_get_device_domain(struct device *dev, + u32 id, + u32 bus_token); +extern void of_msi_configure(struct device *dev, const struct device_node *np); +extern u32 of_msi_xlate(struct device *dev, struct device_node **msi_np, u32 id_in); +#else +static inline void of_irq_init(const struct of_device_id *matches) +{ +} +static inline int of_irq_parse_one(struct device_node *device, int index, + struct of_phandle_args *out_irq) +{ + return -EINVAL; +} +static inline int of_irq_count(struct device_node *dev) +{ + return 0; +} +static inline int of_irq_get(struct device_node *dev, int index) +{ + return 0; +} +static inline int of_irq_get_byname(struct device_node *dev, const char *name) +{ + return 0; +} +static inline const struct cpumask *of_irq_get_affinity(struct device_node *dev, + int index) +{ + return NULL; +} +static inline int of_irq_to_resource_table(struct device_node *dev, + struct resource *res, int nr_irqs) +{ + return 0; +} +static inline void *of_irq_find_parent(struct device_node *child) +{ + return NULL; +} -extern void of_irq_init(const struct of_device_id *matches); +static inline struct irq_domain *of_msi_get_domain(struct device *dev, + struct device_node *np, + enum irq_domain_bus_token token) +{ + return NULL; +} +static inline struct irq_domain *of_msi_map_get_device_domain(struct device *dev, + u32 id, u32 bus_token) +{ + return NULL; +} +static inline void of_msi_configure(struct device *dev, struct device_node *np) +{ +} +static inline u32 of_msi_xlate(struct device *dev, struct device_node **msi_np, u32 id_in) +{ + return id_in; +} +#endif -#endif /* CONFIG_OF_IRQ */ +#if defined(CONFIG_OF_IRQ) || defined(CONFIG_SPARC) +/* + * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC + * implements it differently. However, the prototype is the same for all, + * so declare it here regardless of the CONFIG_OF_IRQ setting. + */ +extern unsigned int irq_of_parse_and_map(struct device_node *node, int index); -#else /* !CONFIG_OF */ +#else /* !CONFIG_OF && !CONFIG_SPARC */ static inline unsigned int irq_of_parse_and_map(struct device_node *dev, int index) { return 0; } - -static inline void *of_irq_find_parent(struct device_node *child) -{ - return NULL; -} #endif /* !CONFIG_OF */ #endif /* __OF_IRQ_H */ |