mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
617 lines
20 KiB
617 lines
20 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
|
/* |
|
* irq_domain - IRQ translation domains |
|
* |
|
* Translation infrastructure between hw and linux irq numbers. This is |
|
* helpful for interrupt controllers to implement mapping between hardware |
|
* irq numbers and the Linux irq number space. |
|
* |
|
* irq_domains also have hooks for translating device tree or other |
|
* firmware interrupt representations into a hardware irq number that |
|
* can be mapped back to a Linux irq number without any extra platform |
|
* support code. |
|
* |
|
* Interrupt controller "domain" data structure. This could be defined as a |
|
* irq domain controller. That is, it handles the mapping between hardware |
|
* and virtual interrupt numbers for a given interrupt domain. The domain |
|
* structure is generally created by the PIC code for a given PIC instance |
|
* (though a domain can cover more than one PIC if they have a flat number |
|
* model). It's the domain callbacks that are responsible for setting the |
|
* irq_chip on a given irq_desc after it's been mapped. |
|
* |
|
* The host code and data structures use a fwnode_handle pointer to |
|
* identify the domain. In some cases, and in order to preserve source |
|
* code compatibility, this fwnode pointer is "upgraded" to a DT |
|
* device_node. For those firmware infrastructures that do not provide |
|
* a unique identifier for an interrupt controller, the irq_domain |
|
* code offers a fwnode allocator. |
|
*/ |
|
|
|
#ifndef _LINUX_IRQDOMAIN_H |
|
#define _LINUX_IRQDOMAIN_H |
|
|
|
#include <linux/types.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 cpumask; |
|
struct seq_file; |
|
struct irq_affinity_desc; |
|
|
|
/* Number of irqs reserved for a legacy isa controller */ |
|
#define NUM_ISA_INTERRUPTS 16 |
|
|
|
#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]; |
|
}; |
|
|
|
/* |
|
* Should several domains have the same device node, but serve |
|
* different purposes (for example one domain is for PCI/MSI, and the |
|
* other for wired IRQs), they can be distinguished using a |
|
* bus-specific token. Most domains are expected to only carry |
|
* DOMAIN_BUS_ANY. |
|
*/ |
|
enum irq_domain_bus_token { |
|
DOMAIN_BUS_ANY = 0, |
|
DOMAIN_BUS_WIRED, |
|
DOMAIN_BUS_GENERIC_MSI, |
|
DOMAIN_BUS_PCI_MSI, |
|
DOMAIN_BUS_PLATFORM_MSI, |
|
DOMAIN_BUS_NEXUS, |
|
DOMAIN_BUS_IPI, |
|
DOMAIN_BUS_FSL_MC_MSI, |
|
DOMAIN_BUS_TI_SCI_INTA_MSI, |
|
DOMAIN_BUS_WAKEUP, |
|
DOMAIN_BUS_VMD_MSI, |
|
}; |
|
|
|
/** |
|
* struct irq_domain_ops - Methods for irq_domain objects |
|
* @match: Match an interrupt controller device node to a host, 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. |
|
* |
|
* 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); |
|
#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 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: host per irq_domain flags |
|
* @mapcount: The number of mapped interrupts |
|
* |
|
* 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 |
|
* @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. |
|
* @parent: Pointer to parent irq_domain to support hierarchy irq_domains |
|
* |
|
* Revmap data, used internally by irq_domain |
|
* @revmap_direct_max_irq: The largest hwirq that can be set for controllers that |
|
* support direct mapping |
|
* @revmap_size: Size of the linear map table @linear_revmap[] |
|
* @revmap_tree: Radix map tree for hwirqs that don't fit in the linear map |
|
* @linear_revmap: Linear table of hwirq->virq reverse mappings |
|
*/ |
|
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; |
|
|
|
/* Optional data */ |
|
struct fwnode_handle *fwnode; |
|
enum irq_domain_bus_token bus_token; |
|
struct irq_domain_chip_generic *gc; |
|
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY |
|
struct irq_domain *parent; |
|
#endif |
|
|
|
/* reverse map data. The linear map gets appended to the irq_domain */ |
|
irq_hw_number_t hwirq_max; |
|
unsigned int revmap_direct_max_irq; |
|
unsigned int revmap_size; |
|
struct radix_tree_root revmap_tree; |
|
struct mutex revmap_tree_mutex; |
|
unsigned int linear_revmap[]; |
|
}; |
|
|
|
/* Irq domain flags */ |
|
enum { |
|
/* Irq domain is hierarchical */ |
|
IRQ_DOMAIN_FLAG_HIERARCHY = (1 << 0), |
|
|
|
/* Irq domain name was allocated in __irq_domain_add() */ |
|
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 MSI remapping */ |
|
IRQ_DOMAIN_FLAG_MSI_REMAP = (1 << 5), |
|
|
|
/* |
|
* Quirk to handle MSI implementations which do not provide |
|
* masking. Currently known to affect x86, but partially |
|
* handled in core code. |
|
*/ |
|
IRQ_DOMAIN_MSI_NOMASK_QUIRK = (1 << 6), |
|
|
|
/* |
|
* 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); |
|
} |
|
|
|
#ifdef CONFIG_IRQ_DOMAIN |
|
struct fwnode_handle *__irq_domain_alloc_fwnode(unsigned int type, int id, |
|
const char *name, phys_addr_t *pa); |
|
|
|
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); |
|
} |
|
|
|
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); |
|
} |
|
|
|
static inline struct fwnode_handle *irq_domain_alloc_fwnode(phys_addr_t *pa) |
|
{ |
|
return __irq_domain_alloc_fwnode(IRQCHIP_FWNODE_REAL, 0, NULL, pa); |
|
} |
|
|
|
void irq_domain_free_fwnode(struct fwnode_handle *fwnode); |
|
struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, int size, |
|
irq_hw_number_t hwirq_max, int direct_max, |
|
const struct irq_domain_ops *ops, |
|
void *host_data); |
|
struct irq_domain *irq_domain_add_simple(struct device_node *of_node, |
|
unsigned int size, |
|
unsigned int first_irq, |
|
const struct irq_domain_ops *ops, |
|
void *host_data); |
|
struct irq_domain *irq_domain_add_legacy(struct device_node *of_node, |
|
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_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); |
|
extern struct irq_domain *irq_find_matching_fwspec(struct irq_fwspec *fwspec, |
|
enum irq_domain_bus_token bus_token); |
|
extern bool irq_domain_check_msi_remap(void); |
|
extern void irq_set_default_host(struct irq_domain *host); |
|
extern struct irq_domain *irq_get_default_host(void); |
|
extern int irq_domain_alloc_descs(int virq, unsigned int nr_irqs, |
|
irq_hw_number_t hwirq, int node, |
|
const struct irq_affinity_desc *affinity); |
|
|
|
static inline struct fwnode_handle *of_node_to_fwnode(struct device_node *node) |
|
{ |
|
return node ? &node->fwnode : NULL; |
|
} |
|
|
|
extern const struct fwnode_operations irqchip_fwnode_ops; |
|
|
|
static inline bool is_fwnode_irqchip(struct fwnode_handle *fwnode) |
|
{ |
|
return fwnode && fwnode->ops == &irqchip_fwnode_ops; |
|
} |
|
|
|
extern 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_node_to_fwnode(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; |
|
} |
|
|
|
/** |
|
* irq_domain_add_linear() - Allocate and register a linear revmap irq_domain. |
|
* @of_node: pointer to interrupt controller's device tree node. |
|
* @size: Number of interrupts in the domain. |
|
* @ops: map/unmap domain callbacks |
|
* @host_data: Controller private data pointer |
|
*/ |
|
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) |
|
{ |
|
return __irq_domain_add(of_node_to_fwnode(of_node), size, size, 0, ops, host_data); |
|
} |
|
static inline struct irq_domain *irq_domain_add_nomap(struct device_node *of_node, |
|
unsigned int max_irq, |
|
const struct irq_domain_ops *ops, |
|
void *host_data) |
|
{ |
|
return __irq_domain_add(of_node_to_fwnode(of_node), 0, max_irq, max_irq, ops, host_data); |
|
} |
|
static inline struct irq_domain *irq_domain_add_legacy_isa( |
|
struct device_node *of_node, |
|
const struct irq_domain_ops *ops, |
|
void *host_data) |
|
{ |
|
return irq_domain_add_legacy(of_node, NUM_ISA_INTERRUPTS, 0, 0, ops, |
|
host_data); |
|
} |
|
static inline struct irq_domain *irq_domain_add_tree(struct device_node *of_node, |
|
const struct irq_domain_ops *ops, |
|
void *host_data) |
|
{ |
|
return __irq_domain_add(of_node_to_fwnode(of_node), 0, ~0, 0, ops, host_data); |
|
} |
|
|
|
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) |
|
{ |
|
return __irq_domain_add(fwnode, size, size, 0, ops, host_data); |
|
} |
|
|
|
static inline struct irq_domain *irq_domain_create_tree(struct fwnode_handle *fwnode, |
|
const struct irq_domain_ops *ops, |
|
void *host_data) |
|
{ |
|
return __irq_domain_add(fwnode, 0, ~0, 0, ops, host_data); |
|
} |
|
|
|
extern void irq_domain_remove(struct irq_domain *host); |
|
|
|
extern int irq_domain_associate(struct irq_domain *domain, unsigned int irq, |
|
irq_hw_number_t hwirq); |
|
extern void irq_domain_associate_many(struct irq_domain *domain, |
|
unsigned int irq_base, |
|
irq_hw_number_t hwirq_base, int count); |
|
|
|
extern unsigned int irq_create_mapping_affinity(struct irq_domain *host, |
|
irq_hw_number_t hwirq, |
|
const struct irq_affinity_desc *affinity); |
|
extern unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec); |
|
extern void irq_dispose_mapping(unsigned int virq); |
|
|
|
static inline unsigned int irq_create_mapping(struct irq_domain *host, |
|
irq_hw_number_t hwirq) |
|
{ |
|
return irq_create_mapping_affinity(host, hwirq, NULL); |
|
} |
|
|
|
|
|
/** |
|
* 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 |
|
* |
|
* This is a fast path alternative to irq_find_mapping() that can be |
|
* called directly by irq controller code to save a handful of |
|
* instructions. It is always safe to call, but won't find irqs mapped |
|
* using the radix tree. |
|
*/ |
|
static inline unsigned int irq_linear_revmap(struct irq_domain *domain, |
|
irq_hw_number_t hwirq) |
|
{ |
|
return hwirq < domain->revmap_size ? domain->linear_revmap[hwirq] : 0; |
|
} |
|
extern unsigned int irq_find_mapping(struct irq_domain *host, |
|
irq_hw_number_t hwirq); |
|
extern unsigned int irq_create_direct_mapping(struct irq_domain *host); |
|
extern int irq_create_strict_mappings(struct irq_domain *domain, |
|
unsigned int irq_base, |
|
irq_hw_number_t hwirq_base, int count); |
|
|
|
static inline int irq_create_identity_mapping(struct irq_domain *host, |
|
irq_hw_number_t hwirq) |
|
{ |
|
return irq_create_strict_mappings(host, hwirq, hwirq, 1); |
|
} |
|
|
|
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_translate_twocell(struct irq_domain *d, |
|
struct irq_fwspec *fwspec, |
|
unsigned long *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); |
|
|
|
/* 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. */ |
|
extern struct irq_data *irq_domain_get_irq_data(struct irq_domain *domain, |
|
unsigned int virq); |
|
extern void irq_domain_set_info(struct irq_domain *domain, unsigned int virq, |
|
irq_hw_number_t hwirq, struct irq_chip *chip, |
|
void *chip_data, irq_flow_handler_t handler, |
|
void *handler_data, const char *handler_name); |
|
extern void irq_domain_reset_irq_data(struct irq_data *irq_data); |
|
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY |
|
extern 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); |
|
|
|
static inline struct irq_domain *irq_domain_add_hierarchy(struct irq_domain *parent, |
|
unsigned int flags, |
|
unsigned int size, |
|
struct device_node *node, |
|
const struct irq_domain_ops *ops, |
|
void *host_data) |
|
{ |
|
return irq_domain_create_hierarchy(parent, flags, size, |
|
of_node_to_fwnode(node), |
|
ops, host_data); |
|
} |
|
|
|
extern 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); |
|
extern void irq_domain_free_irqs(unsigned int virq, unsigned int nr_irqs); |
|
extern int irq_domain_activate_irq(struct irq_data *irq_data, bool early); |
|
extern void irq_domain_deactivate_irq(struct irq_data *irq_data); |
|
|
|
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); |
|
} |
|
|
|
extern int irq_domain_alloc_irqs_hierarchy(struct irq_domain *domain, |
|
unsigned int irq_base, |
|
unsigned int nr_irqs, void *arg); |
|
extern int irq_domain_set_hwirq_and_chip(struct irq_domain *domain, |
|
unsigned int virq, |
|
irq_hw_number_t hwirq, |
|
struct irq_chip *chip, |
|
void *chip_data); |
|
extern void irq_domain_free_irqs_common(struct irq_domain *domain, |
|
unsigned int virq, |
|
unsigned int nr_irqs); |
|
extern void irq_domain_free_irqs_top(struct irq_domain *domain, |
|
unsigned int virq, unsigned int nr_irqs); |
|
|
|
extern int irq_domain_push_irq(struct irq_domain *domain, int virq, void *arg); |
|
extern int irq_domain_pop_irq(struct irq_domain *domain, int virq); |
|
|
|
extern int irq_domain_alloc_irqs_parent(struct irq_domain *domain, |
|
unsigned int irq_base, |
|
unsigned int nr_irqs, void *arg); |
|
|
|
extern void irq_domain_free_irqs_parent(struct irq_domain *domain, |
|
unsigned int irq_base, |
|
unsigned int nr_irqs); |
|
|
|
extern int irq_domain_disconnect_hierarchy(struct irq_domain *domain, |
|
unsigned int virq); |
|
|
|
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_remap(struct irq_domain *domain) |
|
{ |
|
return domain->flags & IRQ_DOMAIN_FLAG_MSI_REMAP; |
|
} |
|
|
|
extern bool irq_domain_hierarchical_is_msi_remap(struct irq_domain *domain); |
|
|
|
#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_remap(struct irq_domain *domain) |
|
{ |
|
return false; |
|
} |
|
|
|
static inline bool |
|
irq_domain_hierarchical_is_msi_remap(struct irq_domain *domain) |
|
{ |
|
return false; |
|
} |
|
#endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */ |
|
|
|
#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; |
|
} |
|
static inline bool irq_domain_check_msi_remap(void) |
|
{ |
|
return false; |
|
} |
|
#endif /* !CONFIG_IRQ_DOMAIN */ |
|
|
|
#endif /* _LINUX_IRQDOMAIN_H */
|
|
|