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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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#ifndef _LINUX_IRQDOMAIN_H#define _LINUX_IRQDOMAIN_H
#include <linux/types.h>#include <linux/irqdomain_defs.h>#include <linux/irqhandler.h>#include <linux/of.h>#include <linux/mutex.h>#include <linux/radix-tree.h>
struct device_node;struct fwnode_handle;struct irq_domain;struct irq_chip;struct irq_data;struct irq_desc;struct cpumask;struct seq_file;struct irq_affinity_desc;struct msi_parent_ops;
#define IRQ_DOMAIN_IRQ_SPEC_PARAMS 16
/** * struct irq_fwspec - generic IRQ specifier structure * * @fwnode: Pointer to a firmware-specific descriptor * @param_count: Number of device-specific parameters * @param: Device-specific parameters * * This structure, directly modeled after of_phandle_args, is used to * pass a device-specific description of an interrupt. */struct irq_fwspec { struct fwnode_handle *fwnode; int param_count; u32 param[IRQ_DOMAIN_IRQ_SPEC_PARAMS];};
/** * struct irq_fwspec_info - firmware provided IRQ information structure * * @flags: Information validity flags * @affinity: Affinity mask for this interrupt * * This structure reports firmware-specific information about an * interrupt. The only significant information is the affinity of a * per-CPU interrupt, but this is designed to be extended as required. */struct irq_fwspec_info { unsigned long flags; const struct cpumask *affinity;};
#define IRQ_FWSPEC_INFO_AFFINITY_VALID BIT(0)
/* Conversion function from of_phandle_args fields to fwspec */void of_phandle_args_to_fwspec(struct device_node *np, const u32 *args, unsigned int count, struct irq_fwspec *fwspec);
/** * struct irq_domain_ops - Methods for irq_domain objects * @match: Match an interrupt controller device node to a domain, returns * 1 on a match * @select: Match an interrupt controller fw specification. It is more generic * than @match as it receives a complete struct irq_fwspec. Therefore, * @select is preferred if provided. Returns 1 on a match. * @map: Create or update a mapping between a virtual irq number and a hw * irq number. This is called only once for a given mapping. * @unmap: Dispose of such a mapping * @xlate: Given a device tree node and interrupt specifier, decode * the hardware irq number and linux irq type value. * @alloc: Allocate @nr_irqs interrupts starting from @virq. * @free: Free @nr_irqs interrupts starting from @virq. * @activate: Activate one interrupt in HW (@irqd). If @reserve is set, only * reserve the vector. If unset, assign the vector (called from * request_irq()). * @deactivate: Disarm one interrupt (@irqd). * @translate: Given @fwspec, decode the hardware irq number (@out_hwirq) and * linux irq type value (@out_type). This is a generalised @xlate * (over struct irq_fwspec) and is preferred if provided. * @get_fwspec_info: * Given @fwspec, report additional firmware-provided information in * @info. Optional. * @debug_show: For domains to show specific data for an interrupt in debugfs. * * Functions below are provided by the driver and called whenever a new mapping * is created or an old mapping is disposed. The driver can then proceed to * whatever internal data structures management is required. It also needs * to setup the irq_desc when returning from map(). */struct irq_domain_ops { int (*match)(struct irq_domain *d, struct device_node *node, enum irq_domain_bus_token bus_token); int (*select)(struct irq_domain *d, struct irq_fwspec *fwspec, enum irq_domain_bus_token bus_token); int (*map)(struct irq_domain *d, unsigned int virq, irq_hw_number_t hw); void (*unmap)(struct irq_domain *d, unsigned int virq); int (*xlate)(struct irq_domain *d, struct device_node *node, const u32 *intspec, unsigned int intsize, unsigned long *out_hwirq, unsigned int *out_type);#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY /* extended V2 interfaces to support hierarchy irq_domains */ int (*alloc)(struct irq_domain *d, unsigned int virq, unsigned int nr_irqs, void *arg); void (*free)(struct irq_domain *d, unsigned int virq, unsigned int nr_irqs); int (*activate)(struct irq_domain *d, struct irq_data *irqd, bool reserve); void (*deactivate)(struct irq_domain *d, struct irq_data *irq_data); int (*translate)(struct irq_domain *d, struct irq_fwspec *fwspec, unsigned long *out_hwirq, unsigned int *out_type); int (*get_fwspec_info)(struct irq_fwspec *fwspec, struct irq_fwspec_info *info);#endif#ifdef CONFIG_GENERIC_IRQ_DEBUGFS void (*debug_show)(struct seq_file *m, struct irq_domain *d, struct irq_data *irqd, int ind);#endif};
extern const struct irq_domain_ops irq_generic_chip_ops;
struct irq_domain_chip_generic;
/** * struct irq_domain - Hardware interrupt number translation object * @link: Element in global irq_domain list. * @name: Name of interrupt domain * @ops: Pointer to irq_domain methods * @host_data: Private data pointer for use by owner. Not touched by irq_domain * core code. * @flags: Per irq_domain flags * @mapcount: The number of mapped interrupts * @mutex: Domain lock, hierarchical domains use root domain's lock * @root: Pointer to root domain, or containing structure if non-hierarchical * * Optional elements: * @fwnode: Pointer to firmware node associated with the irq_domain. Pretty easy * to swap it for the of_node via the irq_domain_get_of_node accessor * @bus_token: @fwnode's device_node might be used for several irq domains. But * in connection with @bus_token, the pair shall be unique in a * system. * @gc: Pointer to a list of generic chips. There is a helper function for * setting up one or more generic chips for interrupt controllers * drivers using the generic chip library which uses this pointer. * @dev: Pointer to the device which instantiated the irqdomain * With per device irq domains this is not necessarily the same * as @pm_dev. * @pm_dev: Pointer to a device that can be utilized for power management * purposes related to the irq domain. * @parent: Pointer to parent irq_domain to support hierarchy irq_domains * @msi_parent_ops: Pointer to MSI parent domain methods for per device domain init * @exit: Function called when the domain is destroyed * * Revmap data, used internally by the irq domain code: * @hwirq_max: Top limit for the HW irq number. Especially to avoid * conflicts/failures with reserved HW irqs. Can be ~0. * @revmap_size: Size of the linear map table @revmap * @revmap_tree: Radix map tree for hwirqs that don't fit in the linear map * @revmap: Linear table of irq_data pointers */struct irq_domain { struct list_head link; const char *name; const struct irq_domain_ops *ops; void *host_data; unsigned int flags; unsigned int mapcount; struct mutex mutex; struct irq_domain *root;
/* Optional data */ struct fwnode_handle *fwnode; enum irq_domain_bus_token bus_token; struct irq_domain_chip_generic *gc; struct device *dev; struct device *pm_dev;#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY struct irq_domain *parent;#endif#ifdef CONFIG_GENERIC_MSI_IRQ const struct msi_parent_ops *msi_parent_ops;#endif void (*exit)(struct irq_domain *d);
/* reverse map data. The linear map gets appended to the irq_domain */ irq_hw_number_t hwirq_max; unsigned int revmap_size; struct radix_tree_root revmap_tree; struct irq_data __rcu *revmap[] __counted_by(revmap_size);};
/* Irq domain flags */enum { /* Irq domain is hierarchical */ IRQ_DOMAIN_FLAG_HIERARCHY = (1 << 0),
/* Irq domain name was allocated internally */ IRQ_DOMAIN_NAME_ALLOCATED = (1 << 1),
/* Irq domain is an IPI domain with virq per cpu */ IRQ_DOMAIN_FLAG_IPI_PER_CPU = (1 << 2),
/* Irq domain is an IPI domain with single virq */ IRQ_DOMAIN_FLAG_IPI_SINGLE = (1 << 3),
/* Irq domain implements MSIs */ IRQ_DOMAIN_FLAG_MSI = (1 << 4),
/* * Irq domain implements isolated MSI, see msi_device_has_isolated_msi() */ IRQ_DOMAIN_FLAG_ISOLATED_MSI = (1 << 5),
/* Irq domain doesn't translate anything */ IRQ_DOMAIN_FLAG_NO_MAP = (1 << 6),
/* Irq domain is a MSI parent domain */ IRQ_DOMAIN_FLAG_MSI_PARENT = (1 << 8),
/* Irq domain is a MSI device domain */ IRQ_DOMAIN_FLAG_MSI_DEVICE = (1 << 9),
/* Irq domain must destroy generic chips when removed */ IRQ_DOMAIN_FLAG_DESTROY_GC = (1 << 10),
/* Address and data pair is mutable when irq_set_affinity() */ IRQ_DOMAIN_FLAG_MSI_IMMUTABLE = (1 << 11),
/* IRQ domain requires parent fwnode matching */ IRQ_DOMAIN_FLAG_FWNODE_PARENT = (1 << 12),
/* * Flags starting from IRQ_DOMAIN_FLAG_NONCORE are reserved * for implementation specific purposes and ignored by the * core code. */ IRQ_DOMAIN_FLAG_NONCORE = (1 << 16),};
static inline struct device_node *irq_domain_get_of_node(struct irq_domain *d){ return to_of_node(d->fwnode);}
static inline void irq_domain_set_pm_device(struct irq_domain *d, struct device *dev){ if (d) d->pm_dev = dev;}
#ifdef CONFIG_IRQ_DOMAINstruct fwnode_handle *__irq_domain_alloc_fwnode(unsigned int type, int id, const char *name, phys_addr_t *pa, struct fwnode_handle *parent);
enum { IRQCHIP_FWNODE_REAL, IRQCHIP_FWNODE_NAMED, IRQCHIP_FWNODE_NAMED_ID,};
static inline struct fwnode_handle *irq_domain_alloc_named_fwnode(const char *name){ return __irq_domain_alloc_fwnode(IRQCHIP_FWNODE_NAMED, 0, name, NULL, NULL);}
static inlinestruct fwnode_handle *irq_domain_alloc_named_parented_fwnode(const char *name, struct fwnode_handle *parent){ return __irq_domain_alloc_fwnode(IRQCHIP_FWNODE_NAMED, 0, name, NULL, parent);}
static inline struct fwnode_handle *irq_domain_alloc_named_id_fwnode(const char *name, int id){ return __irq_domain_alloc_fwnode(IRQCHIP_FWNODE_NAMED_ID, id, name, NULL, NULL);}
static inlinestruct fwnode_handle *irq_domain_alloc_named_id_parented_fwnode(const char *name, int id, struct fwnode_handle *parent){ return __irq_domain_alloc_fwnode(IRQCHIP_FWNODE_NAMED_ID, id, name, NULL, parent);}
static inline struct fwnode_handle *irq_domain_alloc_fwnode(phys_addr_t *pa){ return __irq_domain_alloc_fwnode(IRQCHIP_FWNODE_REAL, 0, NULL, pa, NULL);}
static inline struct fwnode_handle *irq_domain_alloc_parented_fwnode(phys_addr_t *pa, struct fwnode_handle *parent){ return __irq_domain_alloc_fwnode(IRQCHIP_FWNODE_REAL, 0, NULL, pa, parent);}
void irq_domain_free_fwnode(struct fwnode_handle *fwnode);
DEFINE_FREE(irq_domain_free_fwnode, struct fwnode_handle *, if (_T) irq_domain_free_fwnode(_T))
struct irq_domain_chip_generic_info;
/** * struct irq_domain_info - Domain information structure * @fwnode: firmware node for the interrupt controller * @domain_flags: Additional flags to add to the domain flags * @size: Size of linear map; 0 for radix mapping only * @hwirq_max: Maximum number of interrupts supported by controller * @direct_max: Maximum value of direct maps; * Use ~0 for no limit; 0 for no direct mapping * @hwirq_base: The first hardware interrupt number (legacy domains only) * @virq_base: The first Linux interrupt number for legacy domains to * immediately associate the interrupts after domain creation * @bus_token: Domain bus token * @name_suffix: Optional name suffix to avoid collisions when multiple * domains are added using same fwnode * @ops: Domain operation callbacks * @host_data: Controller private data pointer * @dev: Device which creates the domain * @dgc_info: Geneneric chip information structure pointer used to * create generic chips for the domain if not NULL. * @init: Function called when the domain is created. * Allow to do some additional domain initialisation. * @exit: Function called when the domain is destroyed. * Allow to do some additional cleanup operation. */struct irq_domain_info { struct fwnode_handle *fwnode; unsigned int domain_flags; unsigned int size; irq_hw_number_t hwirq_max; int direct_max; unsigned int hwirq_base; unsigned int virq_base; enum irq_domain_bus_token bus_token; const char *name_suffix; const struct irq_domain_ops *ops; void *host_data; struct device *dev;#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY /** * @parent: Pointer to the parent irq domain used in a hierarchy domain */ struct irq_domain *parent;#endif struct irq_domain_chip_generic_info *dgc_info; int (*init)(struct irq_domain *d); void (*exit)(struct irq_domain *d);};
struct irq_domain *irq_domain_instantiate(const struct irq_domain_info *info);struct irq_domain *devm_irq_domain_instantiate(struct device *dev, const struct irq_domain_info *info);
struct irq_domain *irq_domain_create_simple(struct fwnode_handle *fwnode, unsigned int size, unsigned int first_irq, const struct irq_domain_ops *ops, void *host_data);struct irq_domain *irq_domain_create_legacy(struct fwnode_handle *fwnode, unsigned int size, unsigned int first_irq, irq_hw_number_t first_hwirq, const struct irq_domain_ops *ops, void *host_data);struct irq_domain *irq_find_matching_fwspec(struct irq_fwspec *fwspec, enum irq_domain_bus_token bus_token);void irq_set_default_domain(struct irq_domain *domain);struct irq_domain *irq_get_default_domain(void);int irq_domain_alloc_descs(int virq, unsigned int nr_irqs, irq_hw_number_t hwirq, int node, const struct irq_affinity_desc *affinity);
extern const struct fwnode_operations irqchip_fwnode_ops;
static inline bool is_fwnode_irqchip(const struct fwnode_handle *fwnode){ return fwnode && fwnode->ops == &irqchip_fwnode_ops;}
void irq_domain_update_bus_token(struct irq_domain *domain, enum irq_domain_bus_token bus_token);
static inline struct irq_domain *irq_find_matching_fwnode(struct fwnode_handle *fwnode, enum irq_domain_bus_token bus_token){ struct irq_fwspec fwspec = { .fwnode = fwnode, };
return irq_find_matching_fwspec(&fwspec, bus_token);}
static inline struct irq_domain *irq_find_matching_host(struct device_node *node, enum irq_domain_bus_token bus_token){ return irq_find_matching_fwnode(of_fwnode_handle(node), bus_token);}
static inline struct irq_domain *irq_find_host(struct device_node *node){ struct irq_domain *d;
d = irq_find_matching_host(node, DOMAIN_BUS_WIRED); if (!d) d = irq_find_matching_host(node, DOMAIN_BUS_ANY);
return d;}
#ifdef CONFIG_IRQ_DOMAIN_NOMAPstatic inline struct irq_domain *irq_domain_create_nomap(struct fwnode_handle *fwnode, unsigned int max_irq, const struct irq_domain_ops *ops, void *host_data){ const struct irq_domain_info info = { .fwnode = fwnode, .hwirq_max = max_irq, .direct_max = max_irq, .ops = ops, .host_data = host_data, }; struct irq_domain *d = irq_domain_instantiate(&info);
return IS_ERR(d) ? NULL : d;}
unsigned int irq_create_direct_mapping(struct irq_domain *domain);#endif
/** * irq_domain_create_linear - Allocate and register a linear revmap irq_domain. * @fwnode: pointer to interrupt controller's FW node. * @size: Number of interrupts in the domain. * @ops: map/unmap domain callbacks * @host_data: Controller private data pointer * * Returns: Newly created irq_domain */static inline struct irq_domain *irq_domain_create_linear(struct fwnode_handle *fwnode, unsigned int size, const struct irq_domain_ops *ops, void *host_data){ const struct irq_domain_info info = { .fwnode = fwnode, .size = size, .hwirq_max = size, .ops = ops, .host_data = host_data, }; struct irq_domain *d = irq_domain_instantiate(&info);
return IS_ERR(d) ? NULL : d;}
static inline struct irq_domain *irq_domain_create_tree(struct fwnode_handle *fwnode, const struct irq_domain_ops *ops, void *host_data){ const struct irq_domain_info info = { .fwnode = fwnode, .hwirq_max = ~0, .ops = ops, .host_data = host_data, }; struct irq_domain *d = irq_domain_instantiate(&info);
return IS_ERR(d) ? NULL : d;}
void irq_domain_remove(struct irq_domain *domain);
int irq_domain_associate(struct irq_domain *domain, unsigned int irq, irq_hw_number_t hwirq);void irq_domain_associate_many(struct irq_domain *domain, unsigned int irq_base, irq_hw_number_t hwirq_base, int count);
unsigned int irq_create_mapping_affinity(struct irq_domain *domain, irq_hw_number_t hwirq, const struct irq_affinity_desc *affinity);unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec);void irq_dispose_mapping(unsigned int virq);
/** * irq_create_mapping - Map a hardware interrupt into linux irq space * @domain: domain owning this hardware interrupt or NULL for default domain * @hwirq: hardware irq number in that domain space * * Only one mapping per hardware interrupt is permitted. * * If the sense/trigger is to be specified, set_irq_type() should be called * on the number returned from that call. * * Returns: Linux irq number or 0 on error */static inline unsigned int irq_create_mapping(struct irq_domain *domain, irq_hw_number_t hwirq){ return irq_create_mapping_affinity(domain, hwirq, NULL);}
struct irq_desc *__irq_resolve_mapping(struct irq_domain *domain, irq_hw_number_t hwirq, unsigned int *irq);
/** * irq_resolve_mapping - Find a linux irq from a hw irq number. * @domain: domain owning this hardware interrupt * @hwirq: hardware irq number in that domain space * * Returns: Interrupt descriptor */static inline struct irq_desc *irq_resolve_mapping(struct irq_domain *domain, irq_hw_number_t hwirq){ return __irq_resolve_mapping(domain, hwirq, NULL);}
/** * irq_find_mapping() - Find a linux irq from a hw irq number. * @domain: domain owning this hardware interrupt * @hwirq: hardware irq number in that domain space * * Returns: Linux irq number or 0 if not found */static inline unsigned int irq_find_mapping(struct irq_domain *domain, irq_hw_number_t hwirq){ unsigned int irq;
if (__irq_resolve_mapping(domain, hwirq, &irq)) return irq;
return 0;}
extern const struct irq_domain_ops irq_domain_simple_ops;
/* stock xlate functions */int irq_domain_xlate_onecell(struct irq_domain *d, struct device_node *ctrlr, const u32 *intspec, unsigned int intsize, irq_hw_number_t *out_hwirq, unsigned int *out_type);int irq_domain_xlate_twocell(struct irq_domain *d, struct device_node *ctrlr, const u32 *intspec, unsigned int intsize, irq_hw_number_t *out_hwirq, unsigned int *out_type);int irq_domain_xlate_onetwocell(struct irq_domain *d, struct device_node *ctrlr, const u32 *intspec, unsigned int intsize, irq_hw_number_t *out_hwirq, unsigned int *out_type);int irq_domain_xlate_twothreecell(struct irq_domain *d, struct device_node *ctrlr, const u32 *intspec, unsigned int intsize, irq_hw_number_t *out_hwirq, unsigned int *out_type);
int irq_domain_translate_onecell(struct irq_domain *d, struct irq_fwspec *fwspec, unsigned long *out_hwirq, unsigned int *out_type);int irq_domain_translate_twocell(struct irq_domain *d, struct irq_fwspec *fwspec, unsigned long *out_hwirq, unsigned int *out_type);int irq_domain_translate_twothreecell(struct irq_domain *d, struct irq_fwspec *fwspec, unsigned long *out_hwirq, unsigned int *out_type);
/* IPI functions */int irq_reserve_ipi(struct irq_domain *domain, const struct cpumask *dest);int irq_destroy_ipi(unsigned int irq, const struct cpumask *dest);
/* V2 interfaces to support hierarchy IRQ domains. */struct irq_data *irq_domain_get_irq_data(struct irq_domain *domain, unsigned int virq);void irq_domain_set_info(struct irq_domain *domain, unsigned int virq, irq_hw_number_t hwirq, const struct irq_chip *chip, void *chip_data, irq_flow_handler_t handler, void *handler_data, const char *handler_name);void irq_domain_reset_irq_data(struct irq_data *irq_data);#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY/** * irq_domain_create_hierarchy - Add a irqdomain into the hierarchy * @parent: Parent irq domain to associate with the new domain * @flags: Irq domain flags associated to the domain * @size: Size of the domain. See below * @fwnode: Optional fwnode of the interrupt controller * @ops: Pointer to the interrupt domain callbacks * @host_data: Controller private data pointer * * If @size is 0 a tree domain is created, otherwise a linear domain. * * If successful the parent is associated to the new domain and the * domain flags are set. * * Returns: A pointer to IRQ domain, or %NULL on failure. */static inline struct irq_domain *irq_domain_create_hierarchy(struct irq_domain *parent, unsigned int flags, unsigned int size, struct fwnode_handle *fwnode, const struct irq_domain_ops *ops, void *host_data){ const struct irq_domain_info info = { .fwnode = fwnode, .size = size, .hwirq_max = size ? : ~0U, .ops = ops, .host_data = host_data, .domain_flags = flags, .parent = parent, }; struct irq_domain *d = irq_domain_instantiate(&info);
return IS_ERR(d) ? NULL : d;}
int __irq_domain_alloc_irqs(struct irq_domain *domain, int irq_base, unsigned int nr_irqs, int node, void *arg, bool realloc, const struct irq_affinity_desc *affinity);void irq_domain_free_irqs(unsigned int virq, unsigned int nr_irqs);int irq_domain_activate_irq(struct irq_data *irq_data, bool early);void irq_domain_deactivate_irq(struct irq_data *irq_data);
/** * irq_domain_alloc_irqs - Allocate IRQs from domain * @domain: domain to allocate from * @nr_irqs: number of IRQs to allocate * @node: NUMA node id for memory allocation * @arg: domain specific argument * * See __irq_domain_alloc_irqs()' documentation. */static inline int irq_domain_alloc_irqs(struct irq_domain *domain, unsigned int nr_irqs, int node, void *arg){ return __irq_domain_alloc_irqs(domain, -1, nr_irqs, node, arg, false, NULL);}
int irq_domain_set_hwirq_and_chip(struct irq_domain *domain, unsigned int virq, irq_hw_number_t hwirq, const struct irq_chip *chip, void *chip_data);void irq_domain_free_irqs_common(struct irq_domain *domain, unsigned int virq, unsigned int nr_irqs);void irq_domain_free_irqs_top(struct irq_domain *domain, unsigned int virq, unsigned int nr_irqs);
int irq_domain_push_irq(struct irq_domain *domain, int virq, void *arg);int irq_domain_pop_irq(struct irq_domain *domain, int virq);
int irq_domain_alloc_irqs_parent(struct irq_domain *domain, unsigned int irq_base, unsigned int nr_irqs, void *arg);
void irq_domain_free_irqs_parent(struct irq_domain *domain, unsigned int irq_base, unsigned int nr_irqs);
int irq_domain_disconnect_hierarchy(struct irq_domain *domain, unsigned int virq);
int irq_populate_fwspec_info(struct irq_fwspec *fwspec, struct irq_fwspec_info *info);
static inline bool irq_domain_is_hierarchy(struct irq_domain *domain){ return domain->flags & IRQ_DOMAIN_FLAG_HIERARCHY;}
static inline bool irq_domain_is_ipi(struct irq_domain *domain){ return domain->flags & (IRQ_DOMAIN_FLAG_IPI_PER_CPU | IRQ_DOMAIN_FLAG_IPI_SINGLE);}
static inline bool irq_domain_is_ipi_per_cpu(struct irq_domain *domain){ return domain->flags & IRQ_DOMAIN_FLAG_IPI_PER_CPU;}
static inline bool irq_domain_is_ipi_single(struct irq_domain *domain){ return domain->flags & IRQ_DOMAIN_FLAG_IPI_SINGLE;}
static inline bool irq_domain_is_msi(struct irq_domain *domain){ return domain->flags & IRQ_DOMAIN_FLAG_MSI;}
static inline bool irq_domain_is_msi_parent(struct irq_domain *domain){ return domain->flags & IRQ_DOMAIN_FLAG_MSI_PARENT;}
static inline bool irq_domain_is_msi_device(struct irq_domain *domain){ return domain->flags & IRQ_DOMAIN_FLAG_MSI_DEVICE;}
static inline bool irq_domain_is_msi_immutable(struct irq_domain *domain){ return domain->flags & IRQ_DOMAIN_FLAG_MSI_IMMUTABLE;}#else /* CONFIG_IRQ_DOMAIN_HIERARCHY */static inline int irq_domain_alloc_irqs(struct irq_domain *domain, unsigned int nr_irqs, int node, void *arg){ return -1;}
static inline void irq_domain_free_irqs(unsigned int virq, unsigned int nr_irqs) { }
static inline bool irq_domain_is_hierarchy(struct irq_domain *domain){ return false;}
static inline bool irq_domain_is_ipi(struct irq_domain *domain){ return false;}
static inline bool irq_domain_is_ipi_per_cpu(struct irq_domain *domain){ return false;}
static inline bool irq_domain_is_ipi_single(struct irq_domain *domain){ return false;}
static inline bool irq_domain_is_msi(struct irq_domain *domain){ return false;}
static inline bool irq_domain_is_msi_parent(struct irq_domain *domain){ return false;}
static inline bool irq_domain_is_msi_device(struct irq_domain *domain){ return false;}
static inline int irq_populate_fwspec_info(struct irq_fwspec *fwspec, struct irq_fwspec_info *info){ return -EINVAL;}#endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */
#ifdef CONFIG_GENERIC_MSI_IRQint msi_device_domain_alloc_wired(struct irq_domain *domain, unsigned int hwirq, unsigned int type);void msi_device_domain_free_wired(struct irq_domain *domain, unsigned int virq);#elsestatic inline int msi_device_domain_alloc_wired(struct irq_domain *domain, unsigned int hwirq, unsigned int type){ WARN_ON_ONCE(1); return -EINVAL;}static inline void msi_device_domain_free_wired(struct irq_domain *domain, unsigned int virq){ WARN_ON_ONCE(1);}#endif
static inline struct irq_domain *irq_domain_add_linear(struct device_node *of_node, unsigned int size, const struct irq_domain_ops *ops, void *host_data){ struct irq_domain_info info = { .fwnode = of_fwnode_handle(of_node), .size = size, .hwirq_max = size, .ops = ops, .host_data = host_data, }; struct irq_domain *d;
d = irq_domain_instantiate(&info); return IS_ERR(d) ? NULL : d;}
#else /* CONFIG_IRQ_DOMAIN */static inline void irq_dispose_mapping(unsigned int virq) { }static inline struct irq_domain *irq_find_matching_fwnode(struct fwnode_handle *fwnode, enum irq_domain_bus_token bus_token){ return NULL;}#endif /* !CONFIG_IRQ_DOMAIN */
#endif /* _LINUX_IRQDOMAIN_H */