1 /* 2 * Copyright 2014 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 */ 22 23 #ifndef KFD_PRIV_H_INCLUDED 24 #define KFD_PRIV_H_INCLUDED 25 26 #include <linux/hashtable.h> 27 #include <linux/mmu_notifier.h> 28 #include <linux/mutex.h> 29 #include <linux/types.h> 30 #include <linux/atomic.h> 31 #include <linux/workqueue.h> 32 #include <linux/spinlock.h> 33 #include <linux/kfd_ioctl.h> 34 #include <linux/idr.h> 35 #include <linux/kfifo.h> 36 #include <linux/seq_file.h> 37 #include <linux/kref.h> 38 #include <kgd_kfd_interface.h> 39 40 #include "amd_shared.h" 41 42 #define KFD_SYSFS_FILE_MODE 0444 43 44 #define KFD_MMAP_DOORBELL_MASK 0x8000000000000ull 45 #define KFD_MMAP_EVENTS_MASK 0x4000000000000ull 46 #define KFD_MMAP_RESERVED_MEM_MASK 0x2000000000000ull 47 48 /* 49 * When working with cp scheduler we should assign the HIQ manually or via 50 * the radeon driver to a fixed hqd slot, here are the fixed HIQ hqd slot 51 * definitions for Kaveri. In Kaveri only the first ME queues participates 52 * in the cp scheduling taking that in mind we set the HIQ slot in the 53 * second ME. 54 */ 55 #define KFD_CIK_HIQ_PIPE 4 56 #define KFD_CIK_HIQ_QUEUE 0 57 58 /* GPU ID hash width in bits */ 59 #define KFD_GPU_ID_HASH_WIDTH 16 60 61 /* Macro for allocating structures */ 62 #define kfd_alloc_struct(ptr_to_struct) \ 63 ((typeof(ptr_to_struct)) kzalloc(sizeof(*ptr_to_struct), GFP_KERNEL)) 64 65 #define KFD_MAX_NUM_OF_PROCESSES 512 66 #define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS 1024 67 68 /* 69 * Size of the per-process TBA+TMA buffer: 2 pages 70 * 71 * The first page is the TBA used for the CWSR ISA code. The second 72 * page is used as TMA for daisy changing a user-mode trap handler. 73 */ 74 #define KFD_CWSR_TBA_TMA_SIZE (PAGE_SIZE * 2) 75 #define KFD_CWSR_TMA_OFFSET PAGE_SIZE 76 77 /* 78 * Kernel module parameter to specify maximum number of supported queues per 79 * device 80 */ 81 extern int max_num_of_queues_per_device; 82 83 #define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE_DEFAULT 4096 84 #define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE \ 85 (KFD_MAX_NUM_OF_PROCESSES * \ 86 KFD_MAX_NUM_OF_QUEUES_PER_PROCESS) 87 88 #define KFD_KERNEL_QUEUE_SIZE 2048 89 90 /* Kernel module parameter to specify the scheduling policy */ 91 extern int sched_policy; 92 93 /* 94 * Kernel module parameter to specify the maximum process 95 * number per HW scheduler 96 */ 97 extern int hws_max_conc_proc; 98 99 extern int cwsr_enable; 100 101 /* 102 * Kernel module parameter to specify whether to send sigterm to HSA process on 103 * unhandled exception 104 */ 105 extern int send_sigterm; 106 107 /* 108 * Ignore CRAT table during KFD initialization, can be used to work around 109 * broken CRAT tables on some AMD systems 110 */ 111 extern int ignore_crat; 112 113 /** 114 * enum kfd_sched_policy 115 * 116 * @KFD_SCHED_POLICY_HWS: H/W scheduling policy known as command processor (cp) 117 * scheduling. In this scheduling mode we're using the firmware code to 118 * schedule the user mode queues and kernel queues such as HIQ and DIQ. 119 * the HIQ queue is used as a special queue that dispatches the configuration 120 * to the cp and the user mode queues list that are currently running. 121 * the DIQ queue is a debugging queue that dispatches debugging commands to the 122 * firmware. 123 * in this scheduling mode user mode queues over subscription feature is 124 * enabled. 125 * 126 * @KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION: The same as above but the over 127 * subscription feature disabled. 128 * 129 * @KFD_SCHED_POLICY_NO_HWS: no H/W scheduling policy is a mode which directly 130 * set the command processor registers and sets the queues "manually". This 131 * mode is used *ONLY* for debugging proposes. 132 * 133 */ 134 enum kfd_sched_policy { 135 KFD_SCHED_POLICY_HWS = 0, 136 KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION, 137 KFD_SCHED_POLICY_NO_HWS 138 }; 139 140 enum cache_policy { 141 cache_policy_coherent, 142 cache_policy_noncoherent 143 }; 144 145 struct kfd_event_interrupt_class { 146 bool (*interrupt_isr)(struct kfd_dev *dev, 147 const uint32_t *ih_ring_entry); 148 void (*interrupt_wq)(struct kfd_dev *dev, 149 const uint32_t *ih_ring_entry); 150 }; 151 152 struct kfd_device_info { 153 enum amd_asic_type asic_family; 154 const struct kfd_event_interrupt_class *event_interrupt_class; 155 unsigned int max_pasid_bits; 156 unsigned int max_no_of_hqd; 157 size_t ih_ring_entry_size; 158 uint8_t num_of_watch_points; 159 uint16_t mqd_size_aligned; 160 bool supports_cwsr; 161 }; 162 163 struct kfd_mem_obj { 164 uint32_t range_start; 165 uint32_t range_end; 166 uint64_t gpu_addr; 167 uint32_t *cpu_ptr; 168 }; 169 170 struct kfd_vmid_info { 171 uint32_t first_vmid_kfd; 172 uint32_t last_vmid_kfd; 173 uint32_t vmid_num_kfd; 174 }; 175 176 struct kfd_dev { 177 struct kgd_dev *kgd; 178 179 const struct kfd_device_info *device_info; 180 struct pci_dev *pdev; 181 182 unsigned int id; /* topology stub index */ 183 184 phys_addr_t doorbell_base; /* Start of actual doorbells used by 185 * KFD. It is aligned for mapping 186 * into user mode 187 */ 188 size_t doorbell_id_offset; /* Doorbell offset (from KFD doorbell 189 * to HW doorbell, GFX reserved some 190 * at the start) 191 */ 192 u32 __iomem *doorbell_kernel_ptr; /* This is a pointer for a doorbells 193 * page used by kernel queue 194 */ 195 196 struct kgd2kfd_shared_resources shared_resources; 197 struct kfd_vmid_info vm_info; 198 199 const struct kfd2kgd_calls *kfd2kgd; 200 struct mutex doorbell_mutex; 201 DECLARE_BITMAP(doorbell_available_index, 202 KFD_MAX_NUM_OF_QUEUES_PER_PROCESS); 203 204 void *gtt_mem; 205 uint64_t gtt_start_gpu_addr; 206 void *gtt_start_cpu_ptr; 207 void *gtt_sa_bitmap; 208 struct mutex gtt_sa_lock; 209 unsigned int gtt_sa_chunk_size; 210 unsigned int gtt_sa_num_of_chunks; 211 212 /* Interrupts */ 213 struct kfifo ih_fifo; 214 struct workqueue_struct *ih_wq; 215 struct work_struct interrupt_work; 216 spinlock_t interrupt_lock; 217 218 /* QCM Device instance */ 219 struct device_queue_manager *dqm; 220 221 bool init_complete; 222 /* 223 * Interrupts of interest to KFD are copied 224 * from the HW ring into a SW ring. 225 */ 226 bool interrupts_active; 227 228 /* Debug manager */ 229 struct kfd_dbgmgr *dbgmgr; 230 231 /* Maximum process number mapped to HW scheduler */ 232 unsigned int max_proc_per_quantum; 233 234 /* CWSR */ 235 bool cwsr_enabled; 236 const void *cwsr_isa; 237 unsigned int cwsr_isa_size; 238 }; 239 240 /* KGD2KFD callbacks */ 241 void kgd2kfd_exit(void); 242 struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, 243 struct pci_dev *pdev, const struct kfd2kgd_calls *f2g); 244 bool kgd2kfd_device_init(struct kfd_dev *kfd, 245 const struct kgd2kfd_shared_resources *gpu_resources); 246 void kgd2kfd_device_exit(struct kfd_dev *kfd); 247 248 enum kfd_mempool { 249 KFD_MEMPOOL_SYSTEM_CACHEABLE = 1, 250 KFD_MEMPOOL_SYSTEM_WRITECOMBINE = 2, 251 KFD_MEMPOOL_FRAMEBUFFER = 3, 252 }; 253 254 /* Character device interface */ 255 int kfd_chardev_init(void); 256 void kfd_chardev_exit(void); 257 struct device *kfd_chardev(void); 258 259 /** 260 * enum kfd_unmap_queues_filter 261 * 262 * @KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE: Preempts single queue. 263 * 264 * @KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES: Preempts all queues in the 265 * running queues list. 266 * 267 * @KFD_UNMAP_QUEUES_FILTER_BY_PASID: Preempts queues that belongs to 268 * specific process. 269 * 270 */ 271 enum kfd_unmap_queues_filter { 272 KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE, 273 KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES, 274 KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 275 KFD_UNMAP_QUEUES_FILTER_BY_PASID 276 }; 277 278 /** 279 * enum kfd_queue_type 280 * 281 * @KFD_QUEUE_TYPE_COMPUTE: Regular user mode queue type. 282 * 283 * @KFD_QUEUE_TYPE_SDMA: Sdma user mode queue type. 284 * 285 * @KFD_QUEUE_TYPE_HIQ: HIQ queue type. 286 * 287 * @KFD_QUEUE_TYPE_DIQ: DIQ queue type. 288 */ 289 enum kfd_queue_type { 290 KFD_QUEUE_TYPE_COMPUTE, 291 KFD_QUEUE_TYPE_SDMA, 292 KFD_QUEUE_TYPE_HIQ, 293 KFD_QUEUE_TYPE_DIQ 294 }; 295 296 enum kfd_queue_format { 297 KFD_QUEUE_FORMAT_PM4, 298 KFD_QUEUE_FORMAT_AQL 299 }; 300 301 /** 302 * struct queue_properties 303 * 304 * @type: The queue type. 305 * 306 * @queue_id: Queue identifier. 307 * 308 * @queue_address: Queue ring buffer address. 309 * 310 * @queue_size: Queue ring buffer size. 311 * 312 * @priority: Defines the queue priority relative to other queues in the 313 * process. 314 * This is just an indication and HW scheduling may override the priority as 315 * necessary while keeping the relative prioritization. 316 * the priority granularity is from 0 to f which f is the highest priority. 317 * currently all queues are initialized with the highest priority. 318 * 319 * @queue_percent: This field is partially implemented and currently a zero in 320 * this field defines that the queue is non active. 321 * 322 * @read_ptr: User space address which points to the number of dwords the 323 * cp read from the ring buffer. This field updates automatically by the H/W. 324 * 325 * @write_ptr: Defines the number of dwords written to the ring buffer. 326 * 327 * @doorbell_ptr: This field aim is to notify the H/W of new packet written to 328 * the queue ring buffer. This field should be similar to write_ptr and the 329 * user should update this field after he updated the write_ptr. 330 * 331 * @doorbell_off: The doorbell offset in the doorbell pci-bar. 332 * 333 * @is_interop: Defines if this is a interop queue. Interop queue means that 334 * the queue can access both graphics and compute resources. 335 * 336 * @is_active: Defines if the queue is active or not. 337 * 338 * @vmid: If the scheduling mode is no cp scheduling the field defines the vmid 339 * of the queue. 340 * 341 * This structure represents the queue properties for each queue no matter if 342 * it's user mode or kernel mode queue. 343 * 344 */ 345 struct queue_properties { 346 enum kfd_queue_type type; 347 enum kfd_queue_format format; 348 unsigned int queue_id; 349 uint64_t queue_address; 350 uint64_t queue_size; 351 uint32_t priority; 352 uint32_t queue_percent; 353 uint32_t *read_ptr; 354 uint32_t *write_ptr; 355 uint32_t __iomem *doorbell_ptr; 356 uint32_t doorbell_off; 357 bool is_interop; 358 bool is_active; 359 /* Not relevant for user mode queues in cp scheduling */ 360 unsigned int vmid; 361 /* Relevant only for sdma queues*/ 362 uint32_t sdma_engine_id; 363 uint32_t sdma_queue_id; 364 uint32_t sdma_vm_addr; 365 /* Relevant only for VI */ 366 uint64_t eop_ring_buffer_address; 367 uint32_t eop_ring_buffer_size; 368 uint64_t ctx_save_restore_area_address; 369 uint32_t ctx_save_restore_area_size; 370 uint32_t ctl_stack_size; 371 uint64_t tba_addr; 372 uint64_t tma_addr; 373 }; 374 375 /** 376 * struct queue 377 * 378 * @list: Queue linked list. 379 * 380 * @mqd: The queue MQD. 381 * 382 * @mqd_mem_obj: The MQD local gpu memory object. 383 * 384 * @gart_mqd_addr: The MQD gart mc address. 385 * 386 * @properties: The queue properties. 387 * 388 * @mec: Used only in no cp scheduling mode and identifies to micro engine id 389 * that the queue should be execute on. 390 * 391 * @pipe: Used only in no cp scheduling mode and identifies the queue's pipe 392 * id. 393 * 394 * @queue: Used only in no cp scheduliong mode and identifies the queue's slot. 395 * 396 * @process: The kfd process that created this queue. 397 * 398 * @device: The kfd device that created this queue. 399 * 400 * This structure represents user mode compute queues. 401 * It contains all the necessary data to handle such queues. 402 * 403 */ 404 405 struct queue { 406 struct list_head list; 407 void *mqd; 408 struct kfd_mem_obj *mqd_mem_obj; 409 uint64_t gart_mqd_addr; 410 struct queue_properties properties; 411 412 uint32_t mec; 413 uint32_t pipe; 414 uint32_t queue; 415 416 unsigned int sdma_id; 417 418 struct kfd_process *process; 419 struct kfd_dev *device; 420 }; 421 422 /* 423 * Please read the kfd_mqd_manager.h description. 424 */ 425 enum KFD_MQD_TYPE { 426 KFD_MQD_TYPE_COMPUTE = 0, /* for no cp scheduling */ 427 KFD_MQD_TYPE_HIQ, /* for hiq */ 428 KFD_MQD_TYPE_CP, /* for cp queues and diq */ 429 KFD_MQD_TYPE_SDMA, /* for sdma queues */ 430 KFD_MQD_TYPE_MAX 431 }; 432 433 struct scheduling_resources { 434 unsigned int vmid_mask; 435 enum kfd_queue_type type; 436 uint64_t queue_mask; 437 uint64_t gws_mask; 438 uint32_t oac_mask; 439 uint32_t gds_heap_base; 440 uint32_t gds_heap_size; 441 }; 442 443 struct process_queue_manager { 444 /* data */ 445 struct kfd_process *process; 446 struct list_head queues; 447 unsigned long *queue_slot_bitmap; 448 }; 449 450 struct qcm_process_device { 451 /* The Device Queue Manager that owns this data */ 452 struct device_queue_manager *dqm; 453 struct process_queue_manager *pqm; 454 /* Queues list */ 455 struct list_head queues_list; 456 struct list_head priv_queue_list; 457 458 unsigned int queue_count; 459 unsigned int vmid; 460 bool is_debug; 461 462 /* This flag tells if we should reset all wavefronts on 463 * process termination 464 */ 465 bool reset_wavefronts; 466 467 /* 468 * All the memory management data should be here too 469 */ 470 uint64_t gds_context_area; 471 uint32_t sh_mem_config; 472 uint32_t sh_mem_bases; 473 uint32_t sh_mem_ape1_base; 474 uint32_t sh_mem_ape1_limit; 475 uint32_t page_table_base; 476 uint32_t gds_size; 477 uint32_t num_gws; 478 uint32_t num_oac; 479 uint32_t sh_hidden_private_base; 480 481 /* CWSR memory */ 482 void *cwsr_kaddr; 483 uint64_t tba_addr; 484 uint64_t tma_addr; 485 }; 486 487 488 enum kfd_pdd_bound { 489 PDD_UNBOUND = 0, 490 PDD_BOUND, 491 PDD_BOUND_SUSPENDED, 492 }; 493 494 /* Data that is per-process-per device. */ 495 struct kfd_process_device { 496 /* 497 * List of all per-device data for a process. 498 * Starts from kfd_process.per_device_data. 499 */ 500 struct list_head per_device_list; 501 502 /* The device that owns this data. */ 503 struct kfd_dev *dev; 504 505 /* The process that owns this kfd_process_device. */ 506 struct kfd_process *process; 507 508 /* per-process-per device QCM data structure */ 509 struct qcm_process_device qpd; 510 511 /*Apertures*/ 512 uint64_t lds_base; 513 uint64_t lds_limit; 514 uint64_t gpuvm_base; 515 uint64_t gpuvm_limit; 516 uint64_t scratch_base; 517 uint64_t scratch_limit; 518 519 /* Is this process/pasid bound to this device? (amd_iommu_bind_pasid) */ 520 enum kfd_pdd_bound bound; 521 522 /* Flag used to tell the pdd has dequeued from the dqm. 523 * This is used to prevent dev->dqm->ops.process_termination() from 524 * being called twice when it is already called in IOMMU callback 525 * function. 526 */ 527 bool already_dequeued; 528 }; 529 530 #define qpd_to_pdd(x) container_of(x, struct kfd_process_device, qpd) 531 532 /* Process data */ 533 struct kfd_process { 534 /* 535 * kfd_process are stored in an mm_struct*->kfd_process* 536 * hash table (kfd_processes in kfd_process.c) 537 */ 538 struct hlist_node kfd_processes; 539 540 /* 541 * Opaque pointer to mm_struct. We don't hold a reference to 542 * it so it should never be dereferenced from here. This is 543 * only used for looking up processes by their mm. 544 */ 545 void *mm; 546 547 struct kref ref; 548 struct work_struct release_work; 549 550 struct mutex mutex; 551 552 /* 553 * In any process, the thread that started main() is the lead 554 * thread and outlives the rest. 555 * It is here because amd_iommu_bind_pasid wants a task_struct. 556 * It can also be used for safely getting a reference to the 557 * mm_struct of the process. 558 */ 559 struct task_struct *lead_thread; 560 561 /* We want to receive a notification when the mm_struct is destroyed */ 562 struct mmu_notifier mmu_notifier; 563 564 /* Use for delayed freeing of kfd_process structure */ 565 struct rcu_head rcu; 566 567 unsigned int pasid; 568 unsigned int doorbell_index; 569 570 /* 571 * List of kfd_process_device structures, 572 * one for each device the process is using. 573 */ 574 struct list_head per_device_data; 575 576 struct process_queue_manager pqm; 577 578 /*Is the user space process 32 bit?*/ 579 bool is_32bit_user_mode; 580 581 /* Event-related data */ 582 struct mutex event_mutex; 583 /* Event ID allocator and lookup */ 584 struct idr event_idr; 585 /* Event page */ 586 struct kfd_signal_page *signal_page; 587 size_t signal_mapped_size; 588 size_t signal_event_count; 589 bool signal_event_limit_reached; 590 }; 591 592 /** 593 * Ioctl function type. 594 * 595 * \param filep pointer to file structure. 596 * \param p amdkfd process pointer. 597 * \param data pointer to arg that was copied from user. 598 */ 599 typedef int amdkfd_ioctl_t(struct file *filep, struct kfd_process *p, 600 void *data); 601 602 struct amdkfd_ioctl_desc { 603 unsigned int cmd; 604 int flags; 605 amdkfd_ioctl_t *func; 606 unsigned int cmd_drv; 607 const char *name; 608 }; 609 610 void kfd_process_create_wq(void); 611 void kfd_process_destroy_wq(void); 612 struct kfd_process *kfd_create_process(struct file *filep); 613 struct kfd_process *kfd_get_process(const struct task_struct *); 614 struct kfd_process *kfd_lookup_process_by_pasid(unsigned int pasid); 615 void kfd_unref_process(struct kfd_process *p); 616 617 struct kfd_process_device *kfd_bind_process_to_device(struct kfd_dev *dev, 618 struct kfd_process *p); 619 int kfd_bind_processes_to_device(struct kfd_dev *dev); 620 void kfd_unbind_processes_from_device(struct kfd_dev *dev); 621 void kfd_process_iommu_unbind_callback(struct kfd_dev *dev, unsigned int pasid); 622 struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev, 623 struct kfd_process *p); 624 struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, 625 struct kfd_process *p); 626 627 int kfd_reserved_mem_mmap(struct kfd_process *process, 628 struct vm_area_struct *vma); 629 630 /* Process device data iterator */ 631 struct kfd_process_device *kfd_get_first_process_device_data( 632 struct kfd_process *p); 633 struct kfd_process_device *kfd_get_next_process_device_data( 634 struct kfd_process *p, 635 struct kfd_process_device *pdd); 636 bool kfd_has_process_device_data(struct kfd_process *p); 637 638 /* PASIDs */ 639 int kfd_pasid_init(void); 640 void kfd_pasid_exit(void); 641 bool kfd_set_pasid_limit(unsigned int new_limit); 642 unsigned int kfd_get_pasid_limit(void); 643 unsigned int kfd_pasid_alloc(void); 644 void kfd_pasid_free(unsigned int pasid); 645 646 /* Doorbells */ 647 int kfd_doorbell_init(struct kfd_dev *kfd); 648 void kfd_doorbell_fini(struct kfd_dev *kfd); 649 int kfd_doorbell_mmap(struct kfd_process *process, struct vm_area_struct *vma); 650 u32 __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, 651 unsigned int *doorbell_off); 652 void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr); 653 u32 read_kernel_doorbell(u32 __iomem *db); 654 void write_kernel_doorbell(u32 __iomem *db, u32 value); 655 unsigned int kfd_queue_id_to_doorbell(struct kfd_dev *kfd, 656 struct kfd_process *process, 657 unsigned int queue_id); 658 phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev, 659 struct kfd_process *process); 660 int kfd_alloc_process_doorbells(struct kfd_process *process); 661 void kfd_free_process_doorbells(struct kfd_process *process); 662 663 /* GTT Sub-Allocator */ 664 665 int kfd_gtt_sa_allocate(struct kfd_dev *kfd, unsigned int size, 666 struct kfd_mem_obj **mem_obj); 667 668 int kfd_gtt_sa_free(struct kfd_dev *kfd, struct kfd_mem_obj *mem_obj); 669 670 extern struct device *kfd_device; 671 672 /* Topology */ 673 int kfd_topology_init(void); 674 void kfd_topology_shutdown(void); 675 int kfd_topology_add_device(struct kfd_dev *gpu); 676 int kfd_topology_remove_device(struct kfd_dev *gpu); 677 struct kfd_topology_device *kfd_topology_device_by_proximity_domain( 678 uint32_t proximity_domain); 679 struct kfd_dev *kfd_device_by_id(uint32_t gpu_id); 680 struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev); 681 int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_dev **kdev); 682 int kfd_numa_node_to_apic_id(int numa_node_id); 683 684 /* Interrupts */ 685 int kfd_interrupt_init(struct kfd_dev *dev); 686 void kfd_interrupt_exit(struct kfd_dev *dev); 687 void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry); 688 bool enqueue_ih_ring_entry(struct kfd_dev *kfd, const void *ih_ring_entry); 689 bool interrupt_is_wanted(struct kfd_dev *dev, const uint32_t *ih_ring_entry); 690 691 /* Power Management */ 692 void kgd2kfd_suspend(struct kfd_dev *kfd); 693 int kgd2kfd_resume(struct kfd_dev *kfd); 694 695 /* amdkfd Apertures */ 696 int kfd_init_apertures(struct kfd_process *process); 697 698 /* Queue Context Management */ 699 int init_queue(struct queue **q, const struct queue_properties *properties); 700 void uninit_queue(struct queue *q); 701 void print_queue_properties(struct queue_properties *q); 702 void print_queue(struct queue *q); 703 704 struct mqd_manager *mqd_manager_init(enum KFD_MQD_TYPE type, 705 struct kfd_dev *dev); 706 struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type, 707 struct kfd_dev *dev); 708 struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type, 709 struct kfd_dev *dev); 710 struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev); 711 void device_queue_manager_uninit(struct device_queue_manager *dqm); 712 struct kernel_queue *kernel_queue_init(struct kfd_dev *dev, 713 enum kfd_queue_type type); 714 void kernel_queue_uninit(struct kernel_queue *kq); 715 716 /* Process Queue Manager */ 717 struct process_queue_node { 718 struct queue *q; 719 struct kernel_queue *kq; 720 struct list_head process_queue_list; 721 }; 722 723 void kfd_process_dequeue_from_device(struct kfd_process_device *pdd); 724 void kfd_process_dequeue_from_all_devices(struct kfd_process *p); 725 int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p); 726 void pqm_uninit(struct process_queue_manager *pqm); 727 int pqm_create_queue(struct process_queue_manager *pqm, 728 struct kfd_dev *dev, 729 struct file *f, 730 struct queue_properties *properties, 731 unsigned int *qid); 732 int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid); 733 int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid, 734 struct queue_properties *p); 735 struct kernel_queue *pqm_get_kernel_queue(struct process_queue_manager *pqm, 736 unsigned int qid); 737 738 int amdkfd_fence_wait_timeout(unsigned int *fence_addr, 739 unsigned int fence_value, 740 unsigned int timeout_ms); 741 742 /* Packet Manager */ 743 744 #define KFD_FENCE_COMPLETED (100) 745 #define KFD_FENCE_INIT (10) 746 747 struct packet_manager { 748 struct device_queue_manager *dqm; 749 struct kernel_queue *priv_queue; 750 struct mutex lock; 751 bool allocated; 752 struct kfd_mem_obj *ib_buffer_obj; 753 unsigned int ib_size_bytes; 754 }; 755 756 int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm); 757 void pm_uninit(struct packet_manager *pm); 758 int pm_send_set_resources(struct packet_manager *pm, 759 struct scheduling_resources *res); 760 int pm_send_runlist(struct packet_manager *pm, struct list_head *dqm_queues); 761 int pm_send_query_status(struct packet_manager *pm, uint64_t fence_address, 762 uint32_t fence_value); 763 764 int pm_send_unmap_queue(struct packet_manager *pm, enum kfd_queue_type type, 765 enum kfd_unmap_queues_filter mode, 766 uint32_t filter_param, bool reset, 767 unsigned int sdma_engine); 768 769 void pm_release_ib(struct packet_manager *pm); 770 771 uint64_t kfd_get_number_elems(struct kfd_dev *kfd); 772 773 /* Events */ 774 extern const struct kfd_event_interrupt_class event_interrupt_class_cik; 775 extern const struct kfd_device_global_init_class device_global_init_class_cik; 776 777 void kfd_event_init_process(struct kfd_process *p); 778 void kfd_event_free_process(struct kfd_process *p); 779 int kfd_event_mmap(struct kfd_process *process, struct vm_area_struct *vma); 780 int kfd_wait_on_events(struct kfd_process *p, 781 uint32_t num_events, void __user *data, 782 bool all, uint32_t user_timeout_ms, 783 uint32_t *wait_result); 784 void kfd_signal_event_interrupt(unsigned int pasid, uint32_t partial_id, 785 uint32_t valid_id_bits); 786 void kfd_signal_iommu_event(struct kfd_dev *dev, 787 unsigned int pasid, unsigned long address, 788 bool is_write_requested, bool is_execute_requested); 789 void kfd_signal_hw_exception_event(unsigned int pasid); 790 int kfd_set_event(struct kfd_process *p, uint32_t event_id); 791 int kfd_reset_event(struct kfd_process *p, uint32_t event_id); 792 int kfd_event_create(struct file *devkfd, struct kfd_process *p, 793 uint32_t event_type, bool auto_reset, uint32_t node_id, 794 uint32_t *event_id, uint32_t *event_trigger_data, 795 uint64_t *event_page_offset, uint32_t *event_slot_index); 796 int kfd_event_destroy(struct kfd_process *p, uint32_t event_id); 797 798 int dbgdev_wave_reset_wavefronts(struct kfd_dev *dev, struct kfd_process *p); 799 800 /* Debugfs */ 801 #if defined(CONFIG_DEBUG_FS) 802 803 void kfd_debugfs_init(void); 804 void kfd_debugfs_fini(void); 805 int kfd_debugfs_mqds_by_process(struct seq_file *m, void *data); 806 int pqm_debugfs_mqds(struct seq_file *m, void *data); 807 int kfd_debugfs_hqds_by_device(struct seq_file *m, void *data); 808 int dqm_debugfs_hqds(struct seq_file *m, void *data); 809 int kfd_debugfs_rls_by_device(struct seq_file *m, void *data); 810 int pm_debugfs_runlist(struct seq_file *m, void *data); 811 812 #else 813 814 static inline void kfd_debugfs_init(void) {} 815 static inline void kfd_debugfs_fini(void) {} 816 817 #endif 818 819 #endif 820