1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * irq_domain - IRQ translation domains 4 * 5 * Translation infrastructure between hw and linux irq numbers. This is 6 * helpful for interrupt controllers to implement mapping between hardware 7 * irq numbers and the Linux irq number space. 8 * 9 * irq_domains also have hooks for translating device tree or other 10 * firmware interrupt representations into a hardware irq number that 11 * can be mapped back to a Linux irq number without any extra platform 12 * support code. 13 * 14 * Interrupt controller "domain" data structure. This could be defined as a 15 * irq domain controller. That is, it handles the mapping between hardware 16 * and virtual interrupt numbers for a given interrupt domain. The domain 17 * structure is generally created by the PIC code for a given PIC instance 18 * (though a domain can cover more than one PIC if they have a flat number 19 * model). It's the domain callbacks that are responsible for setting the 20 * irq_chip on a given irq_desc after it's been mapped. 21 * 22 * The host code and data structures use a fwnode_handle pointer to 23 * identify the domain. In some cases, and in order to preserve source 24 * code compatibility, this fwnode pointer is "upgraded" to a DT 25 * device_node. For those firmware infrastructures that do not provide 26 * a unique identifier for an interrupt controller, the irq_domain 27 * code offers a fwnode allocator. 28 */ 29 30 #ifndef _LINUX_IRQDOMAIN_H 31 #define _LINUX_IRQDOMAIN_H 32 33 #include <linux/types.h> 34 #include <linux/irqdomain_defs.h> 35 #include <linux/irqhandler.h> 36 #include <linux/of.h> 37 #include <linux/mutex.h> 38 #include <linux/radix-tree.h> 39 40 struct device_node; 41 struct fwnode_handle; 42 struct irq_domain; 43 struct irq_chip; 44 struct irq_data; 45 struct irq_desc; 46 struct cpumask; 47 struct seq_file; 48 struct irq_affinity_desc; 49 struct msi_parent_ops; 50 51 #define IRQ_DOMAIN_IRQ_SPEC_PARAMS 16 52 53 /** 54 * struct irq_fwspec - generic IRQ specifier structure 55 * 56 * @fwnode: Pointer to a firmware-specific descriptor 57 * @param_count: Number of device-specific parameters 58 * @param: Device-specific parameters 59 * 60 * This structure, directly modeled after of_phandle_args, is used to 61 * pass a device-specific description of an interrupt. 62 */ 63 struct irq_fwspec { 64 struct fwnode_handle *fwnode; 65 int param_count; 66 u32 param[IRQ_DOMAIN_IRQ_SPEC_PARAMS]; 67 }; 68 69 /* Conversion function from of_phandle_args fields to fwspec */ 70 void of_phandle_args_to_fwspec(struct device_node *np, const u32 *args, 71 unsigned int count, struct irq_fwspec *fwspec); 72 73 /** 74 * struct irq_domain_ops - Methods for irq_domain objects 75 * @match: Match an interrupt controller device node to a host, returns 76 * 1 on a match 77 * @map: Create or update a mapping between a virtual irq number and a hw 78 * irq number. This is called only once for a given mapping. 79 * @unmap: Dispose of such a mapping 80 * @xlate: Given a device tree node and interrupt specifier, decode 81 * the hardware irq number and linux irq type value. 82 * 83 * Functions below are provided by the driver and called whenever a new mapping 84 * is created or an old mapping is disposed. The driver can then proceed to 85 * whatever internal data structures management is required. It also needs 86 * to setup the irq_desc when returning from map(). 87 */ 88 struct irq_domain_ops { 89 int (*match)(struct irq_domain *d, struct device_node *node, 90 enum irq_domain_bus_token bus_token); 91 int (*select)(struct irq_domain *d, struct irq_fwspec *fwspec, 92 enum irq_domain_bus_token bus_token); 93 int (*map)(struct irq_domain *d, unsigned int virq, irq_hw_number_t hw); 94 void (*unmap)(struct irq_domain *d, unsigned int virq); 95 int (*xlate)(struct irq_domain *d, struct device_node *node, 96 const u32 *intspec, unsigned int intsize, 97 unsigned long *out_hwirq, unsigned int *out_type); 98 #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY 99 /* extended V2 interfaces to support hierarchy irq_domains */ 100 int (*alloc)(struct irq_domain *d, unsigned int virq, 101 unsigned int nr_irqs, void *arg); 102 void (*free)(struct irq_domain *d, unsigned int virq, 103 unsigned int nr_irqs); 104 int (*activate)(struct irq_domain *d, struct irq_data *irqd, bool reserve); 105 void (*deactivate)(struct irq_domain *d, struct irq_data *irq_data); 106 int (*translate)(struct irq_domain *d, struct irq_fwspec *fwspec, 107 unsigned long *out_hwirq, unsigned int *out_type); 108 #endif 109 #ifdef CONFIG_GENERIC_IRQ_DEBUGFS 110 void (*debug_show)(struct seq_file *m, struct irq_domain *d, 111 struct irq_data *irqd, int ind); 112 #endif 113 }; 114 115 extern const struct irq_domain_ops irq_generic_chip_ops; 116 117 struct irq_domain_chip_generic; 118 119 /** 120 * struct irq_domain - Hardware interrupt number translation object 121 * @link: Element in global irq_domain list. 122 * @name: Name of interrupt domain 123 * @ops: Pointer to irq_domain methods 124 * @host_data: Private data pointer for use by owner. Not touched by irq_domain 125 * core code. 126 * @flags: Per irq_domain flags 127 * @mapcount: The number of mapped interrupts 128 * 129 * Optional elements: 130 * @fwnode: Pointer to firmware node associated with the irq_domain. Pretty easy 131 * to swap it for the of_node via the irq_domain_get_of_node accessor 132 * @gc: Pointer to a list of generic chips. There is a helper function for 133 * setting up one or more generic chips for interrupt controllers 134 * drivers using the generic chip library which uses this pointer. 135 * @dev: Pointer to the device which instantiated the irqdomain 136 * With per device irq domains this is not necessarily the same 137 * as @pm_dev. 138 * @pm_dev: Pointer to a device that can be utilized for power management 139 * purposes related to the irq domain. 140 * @parent: Pointer to parent irq_domain to support hierarchy irq_domains 141 * @msi_parent_ops: Pointer to MSI parent domain methods for per device domain init 142 * 143 * Revmap data, used internally by the irq domain code: 144 * @revmap_size: Size of the linear map table @revmap[] 145 * @revmap_tree: Radix map tree for hwirqs that don't fit in the linear map 146 * @revmap_mutex: Lock for the revmap 147 * @revmap: Linear table of irq_data pointers 148 */ 149 struct irq_domain { 150 struct list_head link; 151 const char *name; 152 const struct irq_domain_ops *ops; 153 void *host_data; 154 unsigned int flags; 155 unsigned int mapcount; 156 157 /* Optional data */ 158 struct fwnode_handle *fwnode; 159 enum irq_domain_bus_token bus_token; 160 struct irq_domain_chip_generic *gc; 161 struct device *dev; 162 struct device *pm_dev; 163 #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY 164 struct irq_domain *parent; 165 #endif 166 #ifdef CONFIG_GENERIC_MSI_IRQ 167 const struct msi_parent_ops *msi_parent_ops; 168 #endif 169 170 /* reverse map data. The linear map gets appended to the irq_domain */ 171 irq_hw_number_t hwirq_max; 172 unsigned int revmap_size; 173 struct radix_tree_root revmap_tree; 174 struct mutex revmap_mutex; 175 struct irq_data __rcu *revmap[]; 176 }; 177 178 /* Irq domain flags */ 179 enum { 180 /* Irq domain is hierarchical */ 181 IRQ_DOMAIN_FLAG_HIERARCHY = (1 << 0), 182 183 /* Irq domain name was allocated in __irq_domain_add() */ 184 IRQ_DOMAIN_NAME_ALLOCATED = (1 << 1), 185 186 /* Irq domain is an IPI domain with virq per cpu */ 187 IRQ_DOMAIN_FLAG_IPI_PER_CPU = (1 << 2), 188 189 /* Irq domain is an IPI domain with single virq */ 190 IRQ_DOMAIN_FLAG_IPI_SINGLE = (1 << 3), 191 192 /* Irq domain implements MSIs */ 193 IRQ_DOMAIN_FLAG_MSI = (1 << 4), 194 195 /* Irq domain implements MSI remapping */ 196 IRQ_DOMAIN_FLAG_MSI_REMAP = (1 << 5), 197 198 /* Irq domain doesn't translate anything */ 199 IRQ_DOMAIN_FLAG_NO_MAP = (1 << 6), 200 201 /* Irq domain is a MSI parent domain */ 202 IRQ_DOMAIN_FLAG_MSI_PARENT = (1 << 8), 203 204 /* Irq domain is a MSI device domain */ 205 IRQ_DOMAIN_FLAG_MSI_DEVICE = (1 << 9), 206 207 /* 208 * Flags starting from IRQ_DOMAIN_FLAG_NONCORE are reserved 209 * for implementation specific purposes and ignored by the 210 * core code. 211 */ 212 IRQ_DOMAIN_FLAG_NONCORE = (1 << 16), 213 }; 214 215 static inline struct device_node *irq_domain_get_of_node(struct irq_domain *d) 216 { 217 return to_of_node(d->fwnode); 218 } 219 220 static inline void irq_domain_set_pm_device(struct irq_domain *d, 221 struct device *dev) 222 { 223 if (d) 224 d->pm_dev = dev; 225 } 226 227 #ifdef CONFIG_IRQ_DOMAIN 228 struct fwnode_handle *__irq_domain_alloc_fwnode(unsigned int type, int id, 229 const char *name, phys_addr_t *pa); 230 231 enum { 232 IRQCHIP_FWNODE_REAL, 233 IRQCHIP_FWNODE_NAMED, 234 IRQCHIP_FWNODE_NAMED_ID, 235 }; 236 237 static inline 238 struct fwnode_handle *irq_domain_alloc_named_fwnode(const char *name) 239 { 240 return __irq_domain_alloc_fwnode(IRQCHIP_FWNODE_NAMED, 0, name, NULL); 241 } 242 243 static inline 244 struct fwnode_handle *irq_domain_alloc_named_id_fwnode(const char *name, int id) 245 { 246 return __irq_domain_alloc_fwnode(IRQCHIP_FWNODE_NAMED_ID, id, name, 247 NULL); 248 } 249 250 static inline struct fwnode_handle *irq_domain_alloc_fwnode(phys_addr_t *pa) 251 { 252 return __irq_domain_alloc_fwnode(IRQCHIP_FWNODE_REAL, 0, NULL, pa); 253 } 254 255 void irq_domain_free_fwnode(struct fwnode_handle *fwnode); 256 struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, unsigned int size, 257 irq_hw_number_t hwirq_max, int direct_max, 258 const struct irq_domain_ops *ops, 259 void *host_data); 260 struct irq_domain *irq_domain_create_simple(struct fwnode_handle *fwnode, 261 unsigned int size, 262 unsigned int first_irq, 263 const struct irq_domain_ops *ops, 264 void *host_data); 265 struct irq_domain *irq_domain_add_legacy(struct device_node *of_node, 266 unsigned int size, 267 unsigned int first_irq, 268 irq_hw_number_t first_hwirq, 269 const struct irq_domain_ops *ops, 270 void *host_data); 271 struct irq_domain *irq_domain_create_legacy(struct fwnode_handle *fwnode, 272 unsigned int size, 273 unsigned int first_irq, 274 irq_hw_number_t first_hwirq, 275 const struct irq_domain_ops *ops, 276 void *host_data); 277 extern struct irq_domain *irq_find_matching_fwspec(struct irq_fwspec *fwspec, 278 enum irq_domain_bus_token bus_token); 279 extern bool irq_domain_check_msi_remap(void); 280 extern void irq_set_default_host(struct irq_domain *host); 281 extern struct irq_domain *irq_get_default_host(void); 282 extern int irq_domain_alloc_descs(int virq, unsigned int nr_irqs, 283 irq_hw_number_t hwirq, int node, 284 const struct irq_affinity_desc *affinity); 285 286 static inline struct fwnode_handle *of_node_to_fwnode(struct device_node *node) 287 { 288 return node ? &node->fwnode : NULL; 289 } 290 291 extern const struct fwnode_operations irqchip_fwnode_ops; 292 293 static inline bool is_fwnode_irqchip(struct fwnode_handle *fwnode) 294 { 295 return fwnode && fwnode->ops == &irqchip_fwnode_ops; 296 } 297 298 extern void irq_domain_update_bus_token(struct irq_domain *domain, 299 enum irq_domain_bus_token bus_token); 300 301 static inline 302 struct irq_domain *irq_find_matching_fwnode(struct fwnode_handle *fwnode, 303 enum irq_domain_bus_token bus_token) 304 { 305 struct irq_fwspec fwspec = { 306 .fwnode = fwnode, 307 }; 308 309 return irq_find_matching_fwspec(&fwspec, bus_token); 310 } 311 312 static inline struct irq_domain *irq_find_matching_host(struct device_node *node, 313 enum irq_domain_bus_token bus_token) 314 { 315 return irq_find_matching_fwnode(of_node_to_fwnode(node), bus_token); 316 } 317 318 static inline struct irq_domain *irq_find_host(struct device_node *node) 319 { 320 struct irq_domain *d; 321 322 d = irq_find_matching_host(node, DOMAIN_BUS_WIRED); 323 if (!d) 324 d = irq_find_matching_host(node, DOMAIN_BUS_ANY); 325 326 return d; 327 } 328 329 static inline struct irq_domain *irq_domain_add_simple(struct device_node *of_node, 330 unsigned int size, 331 unsigned int first_irq, 332 const struct irq_domain_ops *ops, 333 void *host_data) 334 { 335 return irq_domain_create_simple(of_node_to_fwnode(of_node), size, first_irq, ops, host_data); 336 } 337 338 /** 339 * irq_domain_add_linear() - Allocate and register a linear revmap irq_domain. 340 * @of_node: pointer to interrupt controller's device tree node. 341 * @size: Number of interrupts in the domain. 342 * @ops: map/unmap domain callbacks 343 * @host_data: Controller private data pointer 344 */ 345 static inline struct irq_domain *irq_domain_add_linear(struct device_node *of_node, 346 unsigned int size, 347 const struct irq_domain_ops *ops, 348 void *host_data) 349 { 350 return __irq_domain_add(of_node_to_fwnode(of_node), size, size, 0, ops, host_data); 351 } 352 353 #ifdef CONFIG_IRQ_DOMAIN_NOMAP 354 static inline struct irq_domain *irq_domain_add_nomap(struct device_node *of_node, 355 unsigned int max_irq, 356 const struct irq_domain_ops *ops, 357 void *host_data) 358 { 359 return __irq_domain_add(of_node_to_fwnode(of_node), 0, max_irq, max_irq, ops, host_data); 360 } 361 362 extern unsigned int irq_create_direct_mapping(struct irq_domain *host); 363 #endif 364 365 static inline struct irq_domain *irq_domain_add_tree(struct device_node *of_node, 366 const struct irq_domain_ops *ops, 367 void *host_data) 368 { 369 return __irq_domain_add(of_node_to_fwnode(of_node), 0, ~0, 0, ops, host_data); 370 } 371 372 static inline struct irq_domain *irq_domain_create_linear(struct fwnode_handle *fwnode, 373 unsigned int size, 374 const struct irq_domain_ops *ops, 375 void *host_data) 376 { 377 return __irq_domain_add(fwnode, size, size, 0, ops, host_data); 378 } 379 380 static inline struct irq_domain *irq_domain_create_tree(struct fwnode_handle *fwnode, 381 const struct irq_domain_ops *ops, 382 void *host_data) 383 { 384 return __irq_domain_add(fwnode, 0, ~0, 0, ops, host_data); 385 } 386 387 extern void irq_domain_remove(struct irq_domain *host); 388 389 extern int irq_domain_associate(struct irq_domain *domain, unsigned int irq, 390 irq_hw_number_t hwirq); 391 extern void irq_domain_associate_many(struct irq_domain *domain, 392 unsigned int irq_base, 393 irq_hw_number_t hwirq_base, int count); 394 395 extern unsigned int irq_create_mapping_affinity(struct irq_domain *host, 396 irq_hw_number_t hwirq, 397 const struct irq_affinity_desc *affinity); 398 extern unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec); 399 extern void irq_dispose_mapping(unsigned int virq); 400 401 static inline unsigned int irq_create_mapping(struct irq_domain *host, 402 irq_hw_number_t hwirq) 403 { 404 return irq_create_mapping_affinity(host, hwirq, NULL); 405 } 406 407 extern struct irq_desc *__irq_resolve_mapping(struct irq_domain *domain, 408 irq_hw_number_t hwirq, 409 unsigned int *irq); 410 411 static inline struct irq_desc *irq_resolve_mapping(struct irq_domain *domain, 412 irq_hw_number_t hwirq) 413 { 414 return __irq_resolve_mapping(domain, hwirq, NULL); 415 } 416 417 /** 418 * irq_find_mapping() - Find a linux irq from a hw irq number. 419 * @domain: domain owning this hardware interrupt 420 * @hwirq: hardware irq number in that domain space 421 */ 422 static inline unsigned int irq_find_mapping(struct irq_domain *domain, 423 irq_hw_number_t hwirq) 424 { 425 unsigned int irq; 426 427 if (__irq_resolve_mapping(domain, hwirq, &irq)) 428 return irq; 429 430 return 0; 431 } 432 433 static inline unsigned int irq_linear_revmap(struct irq_domain *domain, 434 irq_hw_number_t hwirq) 435 { 436 return irq_find_mapping(domain, hwirq); 437 } 438 439 extern const struct irq_domain_ops irq_domain_simple_ops; 440 441 /* stock xlate functions */ 442 int irq_domain_xlate_onecell(struct irq_domain *d, struct device_node *ctrlr, 443 const u32 *intspec, unsigned int intsize, 444 irq_hw_number_t *out_hwirq, unsigned int *out_type); 445 int irq_domain_xlate_twocell(struct irq_domain *d, struct device_node *ctrlr, 446 const u32 *intspec, unsigned int intsize, 447 irq_hw_number_t *out_hwirq, unsigned int *out_type); 448 int irq_domain_xlate_onetwocell(struct irq_domain *d, struct device_node *ctrlr, 449 const u32 *intspec, unsigned int intsize, 450 irq_hw_number_t *out_hwirq, unsigned int *out_type); 451 452 int irq_domain_translate_twocell(struct irq_domain *d, 453 struct irq_fwspec *fwspec, 454 unsigned long *out_hwirq, 455 unsigned int *out_type); 456 457 int irq_domain_translate_onecell(struct irq_domain *d, 458 struct irq_fwspec *fwspec, 459 unsigned long *out_hwirq, 460 unsigned int *out_type); 461 462 /* IPI functions */ 463 int irq_reserve_ipi(struct irq_domain *domain, const struct cpumask *dest); 464 int irq_destroy_ipi(unsigned int irq, const struct cpumask *dest); 465 466 /* V2 interfaces to support hierarchy IRQ domains. */ 467 extern struct irq_data *irq_domain_get_irq_data(struct irq_domain *domain, 468 unsigned int virq); 469 extern void irq_domain_set_info(struct irq_domain *domain, unsigned int virq, 470 irq_hw_number_t hwirq, 471 const struct irq_chip *chip, 472 void *chip_data, irq_flow_handler_t handler, 473 void *handler_data, const char *handler_name); 474 extern void irq_domain_reset_irq_data(struct irq_data *irq_data); 475 #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY 476 extern struct irq_domain *irq_domain_create_hierarchy(struct irq_domain *parent, 477 unsigned int flags, unsigned int size, 478 struct fwnode_handle *fwnode, 479 const struct irq_domain_ops *ops, void *host_data); 480 481 static inline struct irq_domain *irq_domain_add_hierarchy(struct irq_domain *parent, 482 unsigned int flags, 483 unsigned int size, 484 struct device_node *node, 485 const struct irq_domain_ops *ops, 486 void *host_data) 487 { 488 return irq_domain_create_hierarchy(parent, flags, size, 489 of_node_to_fwnode(node), 490 ops, host_data); 491 } 492 493 extern int __irq_domain_alloc_irqs(struct irq_domain *domain, int irq_base, 494 unsigned int nr_irqs, int node, void *arg, 495 bool realloc, 496 const struct irq_affinity_desc *affinity); 497 extern void irq_domain_free_irqs(unsigned int virq, unsigned int nr_irqs); 498 extern int irq_domain_activate_irq(struct irq_data *irq_data, bool early); 499 extern void irq_domain_deactivate_irq(struct irq_data *irq_data); 500 501 static inline int irq_domain_alloc_irqs(struct irq_domain *domain, 502 unsigned int nr_irqs, int node, void *arg) 503 { 504 return __irq_domain_alloc_irqs(domain, -1, nr_irqs, node, arg, false, 505 NULL); 506 } 507 508 extern int irq_domain_alloc_irqs_hierarchy(struct irq_domain *domain, 509 unsigned int irq_base, 510 unsigned int nr_irqs, void *arg); 511 extern int irq_domain_set_hwirq_and_chip(struct irq_domain *domain, 512 unsigned int virq, 513 irq_hw_number_t hwirq, 514 const struct irq_chip *chip, 515 void *chip_data); 516 extern void irq_domain_free_irqs_common(struct irq_domain *domain, 517 unsigned int virq, 518 unsigned int nr_irqs); 519 extern void irq_domain_free_irqs_top(struct irq_domain *domain, 520 unsigned int virq, unsigned int nr_irqs); 521 522 extern int irq_domain_push_irq(struct irq_domain *domain, int virq, void *arg); 523 extern int irq_domain_pop_irq(struct irq_domain *domain, int virq); 524 525 extern int irq_domain_alloc_irqs_parent(struct irq_domain *domain, 526 unsigned int irq_base, 527 unsigned int nr_irqs, void *arg); 528 529 extern void irq_domain_free_irqs_parent(struct irq_domain *domain, 530 unsigned int irq_base, 531 unsigned int nr_irqs); 532 533 extern int irq_domain_disconnect_hierarchy(struct irq_domain *domain, 534 unsigned int virq); 535 536 static inline bool irq_domain_is_hierarchy(struct irq_domain *domain) 537 { 538 return domain->flags & IRQ_DOMAIN_FLAG_HIERARCHY; 539 } 540 541 static inline bool irq_domain_is_ipi(struct irq_domain *domain) 542 { 543 return domain->flags & 544 (IRQ_DOMAIN_FLAG_IPI_PER_CPU | IRQ_DOMAIN_FLAG_IPI_SINGLE); 545 } 546 547 static inline bool irq_domain_is_ipi_per_cpu(struct irq_domain *domain) 548 { 549 return domain->flags & IRQ_DOMAIN_FLAG_IPI_PER_CPU; 550 } 551 552 static inline bool irq_domain_is_ipi_single(struct irq_domain *domain) 553 { 554 return domain->flags & IRQ_DOMAIN_FLAG_IPI_SINGLE; 555 } 556 557 static inline bool irq_domain_is_msi(struct irq_domain *domain) 558 { 559 return domain->flags & IRQ_DOMAIN_FLAG_MSI; 560 } 561 562 static inline bool irq_domain_is_msi_remap(struct irq_domain *domain) 563 { 564 return domain->flags & IRQ_DOMAIN_FLAG_MSI_REMAP; 565 } 566 567 extern bool irq_domain_hierarchical_is_msi_remap(struct irq_domain *domain); 568 569 static inline bool irq_domain_is_msi_parent(struct irq_domain *domain) 570 { 571 return domain->flags & IRQ_DOMAIN_FLAG_MSI_PARENT; 572 } 573 574 static inline bool irq_domain_is_msi_device(struct irq_domain *domain) 575 { 576 return domain->flags & IRQ_DOMAIN_FLAG_MSI_DEVICE; 577 } 578 579 #else /* CONFIG_IRQ_DOMAIN_HIERARCHY */ 580 static inline int irq_domain_alloc_irqs(struct irq_domain *domain, 581 unsigned int nr_irqs, int node, void *arg) 582 { 583 return -1; 584 } 585 586 static inline void irq_domain_free_irqs(unsigned int virq, 587 unsigned int nr_irqs) { } 588 589 static inline bool irq_domain_is_hierarchy(struct irq_domain *domain) 590 { 591 return false; 592 } 593 594 static inline bool irq_domain_is_ipi(struct irq_domain *domain) 595 { 596 return false; 597 } 598 599 static inline bool irq_domain_is_ipi_per_cpu(struct irq_domain *domain) 600 { 601 return false; 602 } 603 604 static inline bool irq_domain_is_ipi_single(struct irq_domain *domain) 605 { 606 return false; 607 } 608 609 static inline bool irq_domain_is_msi(struct irq_domain *domain) 610 { 611 return false; 612 } 613 614 static inline bool irq_domain_is_msi_remap(struct irq_domain *domain) 615 { 616 return false; 617 } 618 619 static inline bool 620 irq_domain_hierarchical_is_msi_remap(struct irq_domain *domain) 621 { 622 return false; 623 } 624 625 static inline bool irq_domain_is_msi_parent(struct irq_domain *domain) 626 { 627 return false; 628 } 629 630 static inline bool irq_domain_is_msi_device(struct irq_domain *domain) 631 { 632 return false; 633 } 634 635 #endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */ 636 637 #else /* CONFIG_IRQ_DOMAIN */ 638 static inline void irq_dispose_mapping(unsigned int virq) { } 639 static inline struct irq_domain *irq_find_matching_fwnode( 640 struct fwnode_handle *fwnode, enum irq_domain_bus_token bus_token) 641 { 642 return NULL; 643 } 644 static inline bool irq_domain_check_msi_remap(void) 645 { 646 return false; 647 } 648 #endif /* !CONFIG_IRQ_DOMAIN */ 649 650 #endif /* _LINUX_IRQDOMAIN_H */ 651