1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Freescale Management Complex (MC) bus private declarations 4 * 5 * Copyright (C) 2016 Freescale Semiconductor, Inc. 6 * 7 */ 8 #ifndef _FSL_MC_PRIVATE_H_ 9 #define _FSL_MC_PRIVATE_H_ 10 11 #include <linux/fsl/mc.h> 12 #include <linux/mutex.h> 13 #include <linux/ioctl.h> 14 #include <linux/miscdevice.h> 15 16 /* 17 * Data Path Management Complex (DPMNG) General API 18 */ 19 20 /* DPMNG command versioning */ 21 #define DPMNG_CMD_BASE_VERSION 1 22 #define DPMNG_CMD_ID_OFFSET 4 23 24 #define DPMNG_CMD(id) (((id) << DPMNG_CMD_ID_OFFSET) | DPMNG_CMD_BASE_VERSION) 25 26 /* DPMNG command IDs */ 27 #define DPMNG_CMDID_GET_VERSION DPMNG_CMD(0x831) 28 29 struct dpmng_rsp_get_version { 30 __le32 revision; 31 __le32 version_major; 32 __le32 version_minor; 33 }; 34 35 /* 36 * Data Path Management Command Portal (DPMCP) API 37 */ 38 39 /* Minimal supported DPMCP Version */ 40 #define DPMCP_MIN_VER_MAJOR 3 41 #define DPMCP_MIN_VER_MINOR 0 42 43 /* DPMCP command versioning */ 44 #define DPMCP_CMD_BASE_VERSION 1 45 #define DPMCP_CMD_ID_OFFSET 4 46 47 #define DPMCP_CMD(id) (((id) << DPMCP_CMD_ID_OFFSET) | DPMCP_CMD_BASE_VERSION) 48 49 /* DPMCP command IDs */ 50 #define DPMCP_CMDID_CLOSE DPMCP_CMD(0x800) 51 #define DPMCP_CMDID_RESET DPMCP_CMD(0x005) 52 53 struct dpmcp_cmd_open { 54 __le32 dpmcp_id; 55 }; 56 57 /* 58 * Initialization and runtime control APIs for DPMCP 59 */ 60 int dpmcp_open(struct fsl_mc_io *mc_io, 61 u32 cmd_flags, 62 int dpmcp_id, 63 u16 *token); 64 65 int dpmcp_close(struct fsl_mc_io *mc_io, 66 u32 cmd_flags, 67 u16 token); 68 69 /* 70 * Data Path Resource Container (DPRC) API 71 */ 72 73 /* Minimal supported DPRC Version */ 74 #define DPRC_MIN_VER_MAJOR 6 75 #define DPRC_MIN_VER_MINOR 0 76 77 /* DPRC command versioning */ 78 #define DPRC_CMD_BASE_VERSION 1 79 #define DPRC_CMD_2ND_VERSION 2 80 #define DPRC_CMD_3RD_VERSION 3 81 #define DPRC_CMD_ID_OFFSET 4 82 83 #define DPRC_CMD(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_BASE_VERSION) 84 #define DPRC_CMD_V2(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_2ND_VERSION) 85 #define DPRC_CMD_V3(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_3RD_VERSION) 86 87 /* DPRC command IDs */ 88 #define DPRC_CMDID_CLOSE DPRC_CMD(0x800) 89 #define DPRC_CMDID_GET_API_VERSION DPRC_CMD(0xa05) 90 91 #define DPRC_CMDID_GET_ATTR DPRC_CMD(0x004) 92 #define DPRC_CMDID_RESET_CONT DPRC_CMD(0x005) 93 #define DPRC_CMDID_RESET_CONT_V2 DPRC_CMD_V2(0x005) 94 95 #define DPRC_CMDID_SET_IRQ DPRC_CMD(0x010) 96 #define DPRC_CMDID_SET_IRQ_ENABLE DPRC_CMD(0x012) 97 #define DPRC_CMDID_SET_IRQ_MASK DPRC_CMD(0x014) 98 #define DPRC_CMDID_GET_IRQ_STATUS DPRC_CMD(0x016) 99 #define DPRC_CMDID_CLEAR_IRQ_STATUS DPRC_CMD(0x017) 100 101 #define DPRC_CMDID_GET_CONT_ID DPRC_CMD(0x830) 102 #define DPRC_CMDID_GET_OBJ_COUNT DPRC_CMD(0x159) 103 #define DPRC_CMDID_GET_OBJ DPRC_CMD(0x15A) 104 #define DPRC_CMDID_GET_OBJ_REG DPRC_CMD(0x15E) 105 #define DPRC_CMDID_GET_OBJ_REG_V2 DPRC_CMD_V2(0x15E) 106 #define DPRC_CMDID_GET_OBJ_REG_V3 DPRC_CMD_V3(0x15E) 107 #define DPRC_CMDID_SET_OBJ_IRQ DPRC_CMD(0x15F) 108 109 #define DPRC_CMDID_GET_CONNECTION DPRC_CMD(0x16C) 110 111 struct dprc_cmd_open { 112 __le32 container_id; 113 }; 114 115 struct dprc_cmd_reset_container { 116 __le32 child_container_id; 117 __le32 options; 118 }; 119 120 struct dprc_cmd_set_irq { 121 /* cmd word 0 */ 122 __le32 irq_val; 123 u8 irq_index; 124 u8 pad[3]; 125 /* cmd word 1 */ 126 __le64 irq_addr; 127 /* cmd word 2 */ 128 __le32 irq_num; 129 }; 130 131 #define DPRC_ENABLE 0x1 132 133 struct dprc_cmd_set_irq_enable { 134 u8 enable; 135 u8 pad[3]; 136 u8 irq_index; 137 }; 138 139 struct dprc_cmd_set_irq_mask { 140 __le32 mask; 141 u8 irq_index; 142 }; 143 144 struct dprc_cmd_get_irq_status { 145 __le32 status; 146 u8 irq_index; 147 }; 148 149 struct dprc_rsp_get_irq_status { 150 __le32 status; 151 }; 152 153 struct dprc_cmd_clear_irq_status { 154 __le32 status; 155 u8 irq_index; 156 }; 157 158 struct dprc_rsp_get_attributes { 159 /* response word 0 */ 160 __le32 container_id; 161 __le32 icid; 162 /* response word 1 */ 163 __le32 options; 164 __le32 portal_id; 165 }; 166 167 struct dprc_rsp_get_obj_count { 168 __le32 pad; 169 __le32 obj_count; 170 }; 171 172 struct dprc_cmd_get_obj { 173 __le32 obj_index; 174 }; 175 176 struct dprc_rsp_get_obj { 177 /* response word 0 */ 178 __le32 pad0; 179 __le32 id; 180 /* response word 1 */ 181 __le16 vendor; 182 u8 irq_count; 183 u8 region_count; 184 __le32 state; 185 /* response word 2 */ 186 __le16 version_major; 187 __le16 version_minor; 188 __le16 flags; 189 __le16 pad1; 190 /* response word 3-4 */ 191 u8 type[16]; 192 /* response word 5-6 */ 193 u8 label[16]; 194 }; 195 196 struct dprc_cmd_get_obj_region { 197 /* cmd word 0 */ 198 __le32 obj_id; 199 __le16 pad0; 200 u8 region_index; 201 u8 pad1; 202 /* cmd word 1-2 */ 203 __le64 pad2[2]; 204 /* cmd word 3-4 */ 205 u8 obj_type[16]; 206 }; 207 208 struct dprc_rsp_get_obj_region { 209 /* response word 0 */ 210 __le64 pad0; 211 /* response word 1 */ 212 __le64 base_offset; 213 /* response word 2 */ 214 __le32 size; 215 u8 type; 216 u8 pad2[3]; 217 /* response word 3 */ 218 __le32 flags; 219 __le32 pad3; 220 /* response word 4 */ 221 /* base_addr may be zero if older MC firmware is used */ 222 __le64 base_addr; 223 }; 224 225 struct dprc_cmd_set_obj_irq { 226 /* cmd word 0 */ 227 __le32 irq_val; 228 u8 irq_index; 229 u8 pad[3]; 230 /* cmd word 1 */ 231 __le64 irq_addr; 232 /* cmd word 2 */ 233 __le32 irq_num; 234 __le32 obj_id; 235 /* cmd word 3-4 */ 236 u8 obj_type[16]; 237 }; 238 239 struct dprc_cmd_get_connection { 240 __le32 ep1_id; 241 __le16 ep1_interface_id; 242 u8 pad[2]; 243 u8 ep1_type[16]; 244 }; 245 246 struct dprc_rsp_get_connection { 247 __le64 pad[3]; 248 __le32 ep2_id; 249 __le16 ep2_interface_id; 250 __le16 pad1; 251 u8 ep2_type[16]; 252 __le32 state; 253 }; 254 255 /* 256 * DPRC API for managing and querying DPAA resources 257 */ 258 int dprc_open(struct fsl_mc_io *mc_io, 259 u32 cmd_flags, 260 int container_id, 261 u16 *token); 262 263 int dprc_close(struct fsl_mc_io *mc_io, 264 u32 cmd_flags, 265 u16 token); 266 267 /* DPRC IRQ events */ 268 269 /* IRQ event - Indicates that a new object added to the container */ 270 #define DPRC_IRQ_EVENT_OBJ_ADDED 0x00000001 271 /* IRQ event - Indicates that an object was removed from the container */ 272 #define DPRC_IRQ_EVENT_OBJ_REMOVED 0x00000002 273 /* 274 * IRQ event - Indicates that one of the descendant containers that opened by 275 * this container is destroyed 276 */ 277 #define DPRC_IRQ_EVENT_CONTAINER_DESTROYED 0x00000010 278 279 /* 280 * IRQ event - Indicates that on one of the container's opened object is 281 * destroyed 282 */ 283 #define DPRC_IRQ_EVENT_OBJ_DESTROYED 0x00000020 284 285 /* Irq event - Indicates that object is created at the container */ 286 #define DPRC_IRQ_EVENT_OBJ_CREATED 0x00000040 287 288 /** 289 * struct dprc_irq_cfg - IRQ configuration 290 * @paddr: Address that must be written to signal a message-based interrupt 291 * @val: Value to write into irq_addr address 292 * @irq_num: A user defined number associated with this IRQ 293 */ 294 struct dprc_irq_cfg { 295 phys_addr_t paddr; 296 u32 val; 297 int irq_num; 298 }; 299 300 int dprc_set_irq(struct fsl_mc_io *mc_io, 301 u32 cmd_flags, 302 u16 token, 303 u8 irq_index, 304 struct dprc_irq_cfg *irq_cfg); 305 306 int dprc_set_irq_enable(struct fsl_mc_io *mc_io, 307 u32 cmd_flags, 308 u16 token, 309 u8 irq_index, 310 u8 en); 311 312 int dprc_set_irq_mask(struct fsl_mc_io *mc_io, 313 u32 cmd_flags, 314 u16 token, 315 u8 irq_index, 316 u32 mask); 317 318 int dprc_get_irq_status(struct fsl_mc_io *mc_io, 319 u32 cmd_flags, 320 u16 token, 321 u8 irq_index, 322 u32 *status); 323 324 int dprc_clear_irq_status(struct fsl_mc_io *mc_io, 325 u32 cmd_flags, 326 u16 token, 327 u8 irq_index, 328 u32 status); 329 330 /** 331 * struct dprc_attributes - Container attributes 332 * @container_id: Container's ID 333 * @icid: Container's ICID 334 * @portal_id: Container's portal ID 335 * @options: Container's options as set at container's creation 336 */ 337 struct dprc_attributes { 338 int container_id; 339 u32 icid; 340 int portal_id; 341 u64 options; 342 }; 343 344 int dprc_get_attributes(struct fsl_mc_io *mc_io, 345 u32 cmd_flags, 346 u16 token, 347 struct dprc_attributes *attributes); 348 349 int dprc_get_obj_count(struct fsl_mc_io *mc_io, 350 u32 cmd_flags, 351 u16 token, 352 int *obj_count); 353 354 int dprc_get_obj(struct fsl_mc_io *mc_io, 355 u32 cmd_flags, 356 u16 token, 357 int obj_index, 358 struct fsl_mc_obj_desc *obj_desc); 359 360 int dprc_set_obj_irq(struct fsl_mc_io *mc_io, 361 u32 cmd_flags, 362 u16 token, 363 char *obj_type, 364 int obj_id, 365 u8 irq_index, 366 struct dprc_irq_cfg *irq_cfg); 367 /** 368 * enum dprc_region_type - Region type 369 * @DPRC_REGION_TYPE_MC_PORTAL: MC portal region 370 * @DPRC_REGION_TYPE_QBMAN_PORTAL: Qbman portal region 371 */ 372 enum dprc_region_type { 373 DPRC_REGION_TYPE_MC_PORTAL, 374 DPRC_REGION_TYPE_QBMAN_PORTAL, 375 DPRC_REGION_TYPE_QBMAN_MEM_BACKED_PORTAL 376 }; 377 378 /** 379 * struct dprc_region_desc - Mappable region descriptor 380 * @base_offset: Region offset from region's base address. 381 * For DPMCP and DPRC objects, region base is offset from SoC MC portals 382 * base address; For DPIO, region base is offset from SoC QMan portals 383 * base address 384 * @size: Region size (in bytes) 385 * @flags: Region attributes 386 * @type: Portal region type 387 */ 388 struct dprc_region_desc { 389 u32 base_offset; 390 u32 size; 391 u32 flags; 392 enum dprc_region_type type; 393 u64 base_address; 394 }; 395 396 int dprc_get_obj_region(struct fsl_mc_io *mc_io, 397 u32 cmd_flags, 398 u16 token, 399 char *obj_type, 400 int obj_id, 401 u8 region_index, 402 struct dprc_region_desc *region_desc); 403 404 int dprc_get_api_version(struct fsl_mc_io *mc_io, 405 u32 cmd_flags, 406 u16 *major_ver, 407 u16 *minor_ver); 408 409 int dprc_get_container_id(struct fsl_mc_io *mc_io, 410 u32 cmd_flags, 411 int *container_id); 412 413 /** 414 * struct dprc_endpoint - Endpoint description for link connect/disconnect 415 * operations 416 * @type: Endpoint object type: NULL terminated string 417 * @id: Endpoint object ID 418 * @if_id: Interface ID; should be set for endpoints with multiple 419 * interfaces ("dpsw", "dpdmux"); for others, always set to 0 420 */ 421 struct dprc_endpoint { 422 char type[16]; 423 int id; 424 u16 if_id; 425 }; 426 427 int dprc_get_connection(struct fsl_mc_io *mc_io, 428 u32 cmd_flags, 429 u16 token, 430 const struct dprc_endpoint *endpoint1, 431 struct dprc_endpoint *endpoint2, 432 int *state); 433 434 /* 435 * Data Path Buffer Pool (DPBP) API 436 */ 437 438 /* DPBP Version */ 439 #define DPBP_VER_MAJOR 3 440 #define DPBP_VER_MINOR 2 441 442 /* Command versioning */ 443 #define DPBP_CMD_BASE_VERSION 1 444 #define DPBP_CMD_ID_OFFSET 4 445 446 #define DPBP_CMD(id) (((id) << DPBP_CMD_ID_OFFSET) | DPBP_CMD_BASE_VERSION) 447 448 /* Command IDs */ 449 #define DPBP_CMDID_CLOSE DPBP_CMD(0x800) 450 451 #define DPBP_CMDID_ENABLE DPBP_CMD(0x002) 452 #define DPBP_CMDID_DISABLE DPBP_CMD(0x003) 453 #define DPBP_CMDID_GET_ATTR DPBP_CMD(0x004) 454 #define DPBP_CMDID_RESET DPBP_CMD(0x005) 455 456 struct dpbp_cmd_open { 457 __le32 dpbp_id; 458 }; 459 460 #define DPBP_ENABLE 0x1 461 462 struct dpbp_rsp_get_attributes { 463 /* response word 0 */ 464 __le16 pad; 465 __le16 bpid; 466 __le32 id; 467 /* response word 1 */ 468 __le16 version_major; 469 __le16 version_minor; 470 }; 471 472 /* 473 * Data Path Concentrator (DPCON) API 474 */ 475 476 /* DPCON Version */ 477 #define DPCON_VER_MAJOR 3 478 #define DPCON_VER_MINOR 2 479 480 /* Command versioning */ 481 #define DPCON_CMD_BASE_VERSION 1 482 #define DPCON_CMD_ID_OFFSET 4 483 484 #define DPCON_CMD(id) (((id) << DPCON_CMD_ID_OFFSET) | DPCON_CMD_BASE_VERSION) 485 486 /* Command IDs */ 487 #define DPCON_CMDID_CLOSE DPCON_CMD(0x800) 488 489 #define DPCON_CMDID_ENABLE DPCON_CMD(0x002) 490 #define DPCON_CMDID_DISABLE DPCON_CMD(0x003) 491 #define DPCON_CMDID_GET_ATTR DPCON_CMD(0x004) 492 #define DPCON_CMDID_RESET DPCON_CMD(0x005) 493 494 #define DPCON_CMDID_SET_NOTIFICATION DPCON_CMD(0x100) 495 496 struct dpcon_cmd_open { 497 __le32 dpcon_id; 498 }; 499 500 #define DPCON_ENABLE 1 501 502 struct dpcon_rsp_get_attr { 503 /* response word 0 */ 504 __le32 id; 505 __le16 qbman_ch_id; 506 u8 num_priorities; 507 u8 pad; 508 }; 509 510 struct dpcon_cmd_set_notification { 511 /* cmd word 0 */ 512 __le32 dpio_id; 513 u8 priority; 514 u8 pad[3]; 515 /* cmd word 1 */ 516 __le64 user_ctx; 517 }; 518 519 /* 520 * Generic FSL MC API 521 */ 522 523 /* generic command versioning */ 524 #define OBJ_CMD_BASE_VERSION 1 525 #define OBJ_CMD_ID_OFFSET 4 526 527 #define OBJ_CMD(id) (((id) << OBJ_CMD_ID_OFFSET) | OBJ_CMD_BASE_VERSION) 528 529 /* open command codes */ 530 #define DPRTC_CMDID_OPEN OBJ_CMD(0x810) 531 #define DPNI_CMDID_OPEN OBJ_CMD(0x801) 532 #define DPSW_CMDID_OPEN OBJ_CMD(0x802) 533 #define DPIO_CMDID_OPEN OBJ_CMD(0x803) 534 #define DPBP_CMDID_OPEN OBJ_CMD(0x804) 535 #define DPRC_CMDID_OPEN OBJ_CMD(0x805) 536 #define DPDMUX_CMDID_OPEN OBJ_CMD(0x806) 537 #define DPCI_CMDID_OPEN OBJ_CMD(0x807) 538 #define DPCON_CMDID_OPEN OBJ_CMD(0x808) 539 #define DPSECI_CMDID_OPEN OBJ_CMD(0x809) 540 #define DPAIOP_CMDID_OPEN OBJ_CMD(0x80a) 541 #define DPMCP_CMDID_OPEN OBJ_CMD(0x80b) 542 #define DPMAC_CMDID_OPEN OBJ_CMD(0x80c) 543 #define DPDCEI_CMDID_OPEN OBJ_CMD(0x80d) 544 #define DPDMAI_CMDID_OPEN OBJ_CMD(0x80e) 545 #define DPDBG_CMDID_OPEN OBJ_CMD(0x80f) 546 547 /* Generic object command IDs */ 548 #define OBJ_CMDID_CLOSE OBJ_CMD(0x800) 549 #define OBJ_CMDID_RESET OBJ_CMD(0x005) 550 551 struct fsl_mc_obj_cmd_open { 552 __le32 obj_id; 553 }; 554 555 /** 556 * struct fsl_mc_resource_pool - Pool of MC resources of a given 557 * type 558 * @type: type of resources in the pool 559 * @max_count: maximum number of resources in the pool 560 * @free_count: number of free resources in the pool 561 * @mutex: mutex to serialize access to the pool's free list 562 * @free_list: anchor node of list of free resources in the pool 563 * @mc_bus: pointer to the MC bus that owns this resource pool 564 */ 565 struct fsl_mc_resource_pool { 566 enum fsl_mc_pool_type type; 567 int max_count; 568 int free_count; 569 struct mutex mutex; /* serializes access to free_list */ 570 struct list_head free_list; 571 struct fsl_mc_bus *mc_bus; 572 }; 573 574 /** 575 * struct fsl_mc_uapi - information associated with a device file 576 * @misc: struct miscdevice linked to the root dprc 577 * @device: newly created device in /dev 578 * @mutex: mutex lock to serialize the open/release operations 579 * @local_instance_in_use: local MC I/O instance in use or not 580 * @static_mc_io: pointer to the static MC I/O object 581 */ 582 struct fsl_mc_uapi { 583 struct miscdevice misc; 584 struct device *device; 585 struct mutex mutex; /* serialize open/release operations */ 586 u32 local_instance_in_use; 587 struct fsl_mc_io *static_mc_io; 588 }; 589 590 /** 591 * struct fsl_mc_bus - logical bus that corresponds to a physical DPRC 592 * @mc_dev: fsl-mc device for the bus device itself. 593 * @resource_pools: array of resource pools (one pool per resource type) 594 * for this MC bus. These resources represent allocatable entities 595 * from the physical DPRC. 596 * @irq_resources: Pointer to array of IRQ objects for the IRQ pool 597 * @scan_mutex: Serializes bus scanning 598 * @dprc_attr: DPRC attributes 599 * @uapi_misc: struct that abstracts the interaction with userspace 600 */ 601 struct fsl_mc_bus { 602 struct fsl_mc_device mc_dev; 603 struct fsl_mc_resource_pool resource_pools[FSL_MC_NUM_POOL_TYPES]; 604 struct fsl_mc_device_irq *irq_resources; 605 struct mutex scan_mutex; /* serializes bus scanning */ 606 struct dprc_attributes dprc_attr; 607 struct fsl_mc_uapi uapi_misc; 608 int irq_enabled; 609 }; 610 611 #define to_fsl_mc_bus(_mc_dev) \ 612 container_of(_mc_dev, struct fsl_mc_bus, mc_dev) 613 614 int __must_check fsl_mc_device_add(struct fsl_mc_obj_desc *obj_desc, 615 struct fsl_mc_io *mc_io, 616 struct device *parent_dev, 617 struct fsl_mc_device **new_mc_dev); 618 619 void fsl_mc_device_remove(struct fsl_mc_device *mc_dev); 620 621 int __init dprc_driver_init(void); 622 623 void dprc_driver_exit(void); 624 625 int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev, 626 bool alloc_interrupts); 627 628 int __init fsl_mc_allocator_driver_init(void); 629 630 void fsl_mc_init_all_resource_pools(struct fsl_mc_device *mc_bus_dev); 631 632 int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus, 633 enum fsl_mc_pool_type pool_type, 634 struct fsl_mc_resource 635 **new_resource); 636 637 void fsl_mc_resource_free(struct fsl_mc_resource *resource); 638 639 int fsl_mc_msi_domain_alloc_irqs(struct device *dev, 640 unsigned int irq_count); 641 642 void fsl_mc_msi_domain_free_irqs(struct device *dev); 643 644 struct irq_domain *fsl_mc_find_msi_domain(struct device *dev); 645 646 int __must_check fsl_create_mc_io(struct device *dev, 647 phys_addr_t mc_portal_phys_addr, 648 u32 mc_portal_size, 649 struct fsl_mc_device *dpmcp_dev, 650 u32 flags, struct fsl_mc_io **new_mc_io); 651 652 void fsl_destroy_mc_io(struct fsl_mc_io *mc_io); 653 654 bool fsl_mc_is_root_dprc(struct device *dev); 655 656 void fsl_mc_get_root_dprc(struct device *dev, 657 struct device **root_dprc_dev); 658 659 struct fsl_mc_device *fsl_mc_device_lookup(struct fsl_mc_obj_desc *obj_desc, 660 struct fsl_mc_device *mc_bus_dev); 661 662 u16 mc_cmd_hdr_read_cmdid(struct fsl_mc_command *cmd); 663 664 #ifdef CONFIG_FSL_MC_UAPI_SUPPORT 665 666 int fsl_mc_uapi_create_device_file(struct fsl_mc_bus *mc_bus); 667 668 void fsl_mc_uapi_remove_device_file(struct fsl_mc_bus *mc_bus); 669 670 #else 671 672 static inline int fsl_mc_uapi_create_device_file(struct fsl_mc_bus *mc_bus) 673 { 674 return 0; 675 } 676 677 static inline void fsl_mc_uapi_remove_device_file(struct fsl_mc_bus *mc_bus) 678 { 679 } 680 681 #endif 682 683 int disable_dprc_irq(struct fsl_mc_device *mc_dev); 684 int enable_dprc_irq(struct fsl_mc_device *mc_dev); 685 int get_dprc_irq_state(struct fsl_mc_device *mc_dev); 686 687 #endif /* _FSL_MC_PRIVATE_H_ */ 688