1/* SPDX-License-Identifier: GPL-2.0 OR MIT */ 2/* 3 * Copyright 2014-2022 Advanced Micro Devices, Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 */ 23 24#ifndef KFD_PRIV_H_INCLUDED 25#define KFD_PRIV_H_INCLUDED 26 27#include <linux/hashtable.h> 28#include <linux/mmu_notifier.h> 29#include <linux/memremap.h> 30#include <linux/mutex.h> 31#include <linux/types.h> 32#include <linux/atomic.h> 33#include <linux/workqueue.h> 34#include <linux/spinlock.h> 35#include <linux/kfd_ioctl.h> 36#include <linux/idr.h> 37#include <linux/kfifo.h> 38#include <linux/seq_file.h> 39#include <linux/kref.h> 40#include <linux/sysfs.h> 41#include <linux/device_cgroup.h> 42#include <drm/drm_file.h> 43#include <drm/drm_drv.h> 44#include <drm/drm_device.h> 45#include <drm/drm_ioctl.h> 46#include <kgd_kfd_interface.h> 47#include <linux/swap.h> 48 49#include "amd_shared.h" 50#include "amdgpu.h" 51 52#define KFD_MAX_RING_ENTRY_SIZE 8 53 54#define KFD_SYSFS_FILE_MODE 0444 55 56/* GPU ID hash width in bits */ 57#define KFD_GPU_ID_HASH_WIDTH 16 58 59/* Use upper bits of mmap offset to store KFD driver specific information. 60 * BITS[63:62] - Encode MMAP type 61 * BITS[61:46] - Encode gpu_id. To identify to which GPU the offset belongs to 62 * BITS[45:0] - MMAP offset value 63 * 64 * NOTE: struct vm_area_struct.vm_pgoff uses offset in pages. Hence, these 65 * defines are w.r.t to PAGE_SIZE 66 */ 67#define KFD_MMAP_TYPE_SHIFT 62 68#define KFD_MMAP_TYPE_MASK (0x3ULL << KFD_MMAP_TYPE_SHIFT) 69#define KFD_MMAP_TYPE_DOORBELL (0x3ULL << KFD_MMAP_TYPE_SHIFT) 70#define KFD_MMAP_TYPE_EVENTS (0x2ULL << KFD_MMAP_TYPE_SHIFT) 71#define KFD_MMAP_TYPE_RESERVED_MEM (0x1ULL << KFD_MMAP_TYPE_SHIFT) 72#define KFD_MMAP_TYPE_MMIO (0x0ULL << KFD_MMAP_TYPE_SHIFT) 73 74#define KFD_MMAP_GPU_ID_SHIFT 46 75#define KFD_MMAP_GPU_ID_MASK (((1ULL << KFD_GPU_ID_HASH_WIDTH) - 1) \ 76 << KFD_MMAP_GPU_ID_SHIFT) 77#define KFD_MMAP_GPU_ID(gpu_id) ((((uint64_t)gpu_id) << KFD_MMAP_GPU_ID_SHIFT)\ 78 & KFD_MMAP_GPU_ID_MASK) 79#define KFD_MMAP_GET_GPU_ID(offset) ((offset & KFD_MMAP_GPU_ID_MASK) \ 80 >> KFD_MMAP_GPU_ID_SHIFT) 81 82/* 83 * When working with cp scheduler we should assign the HIQ manually or via 84 * the amdgpu driver to a fixed hqd slot, here are the fixed HIQ hqd slot 85 * definitions for Kaveri. In Kaveri only the first ME queues participates 86 * in the cp scheduling taking that in mind we set the HIQ slot in the 87 * second ME. 88 */ 89#define KFD_CIK_HIQ_PIPE 4 90#define KFD_CIK_HIQ_QUEUE 0 91 92/* Macro for allocating structures */ 93#define kfd_alloc_struct(ptr_to_struct) \ 94 ((typeof(ptr_to_struct)) kzalloc(sizeof(*ptr_to_struct), GFP_KERNEL)) 95 96#define KFD_MAX_NUM_OF_PROCESSES 512 97#define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS 1024 98 99/* 100 * Size of the per-process TBA+TMA buffer: 2 pages 101 * 102 * The first chunk is the TBA used for the CWSR ISA code. The second 103 * chunk is used as TMA for user-mode trap handler setup in daisy-chain mode. 104 */ 105#define KFD_CWSR_TBA_TMA_SIZE (PAGE_SIZE * 2) 106#define KFD_CWSR_TMA_OFFSET (PAGE_SIZE + 2048) 107 108#define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE \ 109 (KFD_MAX_NUM_OF_PROCESSES * \ 110 KFD_MAX_NUM_OF_QUEUES_PER_PROCESS) 111 112#define KFD_KERNEL_QUEUE_SIZE 2048 113 114#define KFD_UNMAP_LATENCY_MS (4000) 115 116#define KFD_MAX_SDMA_QUEUES 128 117 118/* 119 * 512 = 0x200 120 * The doorbell index distance between SDMA RLC (2*i) and (2*i+1) in the 121 * same SDMA engine on SOC15, which has 8-byte doorbells for SDMA. 122 * 512 8-byte doorbell distance (i.e. one page away) ensures that SDMA RLC 123 * (2*i+1) doorbells (in terms of the lower 12 bit address) lie exactly in 124 * the OFFSET and SIZE set in registers like BIF_SDMA0_DOORBELL_RANGE. 125 */ 126#define KFD_QUEUE_DOORBELL_MIRROR_OFFSET 512 127 128/** 129 * enum kfd_ioctl_flags - KFD ioctl flags 130 * Various flags that can be set in &amdkfd_ioctl_desc.flags to control how 131 * userspace can use a given ioctl. 132 */ 133enum kfd_ioctl_flags { 134 /* 135 * @KFD_IOC_FLAG_CHECKPOINT_RESTORE: 136 * Certain KFD ioctls such as AMDKFD_IOC_CRIU_OP can potentially 137 * perform privileged operations and load arbitrary data into MQDs and 138 * eventually HQD registers when the queue is mapped by HWS. In order to 139 * prevent this we should perform additional security checks. 140 * 141 * This is equivalent to callers with the CHECKPOINT_RESTORE capability. 142 * 143 * Note: Since earlier versions of docker do not support CHECKPOINT_RESTORE, 144 * we also allow ioctls with SYS_ADMIN capability. 145 */ 146 KFD_IOC_FLAG_CHECKPOINT_RESTORE = BIT(0), 147}; 148/* 149 * Kernel module parameter to specify maximum number of supported queues per 150 * device 151 */ 152extern int max_num_of_queues_per_device; 153 154 155/* Kernel module parameter to specify the scheduling policy */ 156extern int sched_policy; 157 158/* 159 * Kernel module parameter to specify the maximum process 160 * number per HW scheduler 161 */ 162extern int hws_max_conc_proc; 163 164extern int cwsr_enable; 165 166/* 167 * Kernel module parameter to specify whether to send sigterm to HSA process on 168 * unhandled exception 169 */ 170extern int send_sigterm; 171 172/* 173 * This kernel module is used to simulate large bar machine on non-large bar 174 * enabled machines. 175 */ 176extern int debug_largebar; 177 178/* Set sh_mem_config.retry_disable on GFX v9 */ 179extern int amdgpu_noretry; 180 181/* Halt if HWS hang is detected */ 182extern int halt_if_hws_hang; 183 184/* Whether MEC FW support GWS barriers */ 185extern bool hws_gws_support; 186 187/* Queue preemption timeout in ms */ 188extern int queue_preemption_timeout_ms; 189 190/* 191 * Don't evict process queues on vm fault 192 */ 193extern int amdgpu_no_queue_eviction_on_vm_fault; 194 195/* Enable eviction debug messages */ 196extern bool debug_evictions; 197 198extern struct mutex kfd_processes_mutex; 199 200enum cache_policy { 201 cache_policy_coherent, 202 cache_policy_noncoherent 203}; 204 205#define KFD_GC_VERSION(dev) (amdgpu_ip_version((dev)->adev, GC_HWIP, 0)) 206#define KFD_IS_SOC15(dev) ((KFD_GC_VERSION(dev)) >= (IP_VERSION(9, 0, 1))) 207#define KFD_SUPPORT_XNACK_PER_PROCESS(dev)\ 208 ((KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 2)) || \ 209 (KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 3))) 210 211struct kfd_node; 212 213struct kfd_event_interrupt_class { 214 bool (*interrupt_isr)(struct kfd_node *dev, 215 const uint32_t *ih_ring_entry, uint32_t *patched_ihre, 216 bool *patched_flag); 217 void (*interrupt_wq)(struct kfd_node *dev, 218 const uint32_t *ih_ring_entry); 219}; 220 221struct kfd_device_info { 222 uint32_t gfx_target_version; 223 const struct kfd_event_interrupt_class *event_interrupt_class; 224 unsigned int max_pasid_bits; 225 unsigned int max_no_of_hqd; 226 unsigned int doorbell_size; 227 size_t ih_ring_entry_size; 228 uint8_t num_of_watch_points; 229 uint16_t mqd_size_aligned; 230 bool supports_cwsr; 231 bool needs_pci_atomics; 232 uint32_t no_atomic_fw_version; 233 unsigned int num_sdma_queues_per_engine; 234 unsigned int num_reserved_sdma_queues_per_engine; 235 DECLARE_BITMAP(reserved_sdma_queues_bitmap, KFD_MAX_SDMA_QUEUES); 236}; 237 238unsigned int kfd_get_num_sdma_engines(struct kfd_node *kdev); 239unsigned int kfd_get_num_xgmi_sdma_engines(struct kfd_node *kdev); 240 241struct kfd_mem_obj { 242 uint32_t range_start; 243 uint32_t range_end; 244 uint64_t gpu_addr; 245 uint32_t *cpu_ptr; 246 void *gtt_mem; 247}; 248 249struct kfd_vmid_info { 250 uint32_t first_vmid_kfd; 251 uint32_t last_vmid_kfd; 252 uint32_t vmid_num_kfd; 253}; 254 255#define MAX_KFD_NODES 8 256 257struct kfd_dev; 258 259struct kfd_node { 260 unsigned int node_id; 261 struct amdgpu_device *adev; /* Duplicated here along with keeping 262 * a copy in kfd_dev to save a hop 263 */ 264 const struct kfd2kgd_calls *kfd2kgd; /* Duplicated here along with 265 * keeping a copy in kfd_dev to 266 * save a hop 267 */ 268 struct kfd_vmid_info vm_info; 269 unsigned int id; /* topology stub index */ 270 uint32_t xcc_mask; /* Instance mask of XCCs present */ 271 struct amdgpu_xcp *xcp; 272 273 /* Interrupts */ 274 struct kfifo ih_fifo; 275 struct workqueue_struct *ih_wq; 276 struct work_struct interrupt_work; 277 spinlock_t interrupt_lock; 278 279 /* 280 * Interrupts of interest to KFD are copied 281 * from the HW ring into a SW ring. 282 */ 283 bool interrupts_active; 284 uint32_t interrupt_bitmap; /* Only used for GFX 9.4.3 */ 285 286 /* QCM Device instance */ 287 struct device_queue_manager *dqm; 288 289 /* Global GWS resource shared between processes */ 290 void *gws; 291 bool gws_debug_workaround; 292 293 /* Clients watching SMI events */ 294 struct list_head smi_clients; 295 spinlock_t smi_lock; 296 uint32_t reset_seq_num; 297 298 /* SRAM ECC flag */ 299 atomic_t sram_ecc_flag; 300 301 /*spm process id */ 302 unsigned int spm_pasid; 303 304 /* Maximum process number mapped to HW scheduler */ 305 unsigned int max_proc_per_quantum; 306 307 unsigned int compute_vmid_bitmap; 308 309 struct kfd_local_mem_info local_mem_info; 310 311 struct kfd_dev *kfd; 312}; 313 314struct kfd_dev { 315 struct amdgpu_device *adev; 316 317 struct kfd_device_info device_info; 318 319 u32 __iomem *doorbell_kernel_ptr; /* This is a pointer for a doorbells 320 * page used by kernel queue 321 */ 322 323 struct kgd2kfd_shared_resources shared_resources; 324 325 const struct kfd2kgd_calls *kfd2kgd; 326 struct mutex doorbell_mutex; 327 328 void *gtt_mem; 329 uint64_t gtt_start_gpu_addr; 330 void *gtt_start_cpu_ptr; 331 void *gtt_sa_bitmap; 332 struct mutex gtt_sa_lock; 333 unsigned int gtt_sa_chunk_size; 334 unsigned int gtt_sa_num_of_chunks; 335 336 bool init_complete; 337 338 /* Firmware versions */ 339 uint16_t mec_fw_version; 340 uint16_t mec2_fw_version; 341 uint16_t sdma_fw_version; 342 343 /* CWSR */ 344 bool cwsr_enabled; 345 const void *cwsr_isa; 346 unsigned int cwsr_isa_size; 347 348 /* xGMI */ 349 uint64_t hive_id; 350 351 bool pci_atomic_requested; 352 353 /* Compute Profile ref. count */ 354 atomic_t compute_profile; 355 356 struct ida doorbell_ida; 357 unsigned int max_doorbell_slices; 358 359 int noretry; 360 361 struct kfd_node *nodes[MAX_KFD_NODES]; 362 unsigned int num_nodes; 363 364 /* Track per device allocated watch points */ 365 uint32_t alloc_watch_ids; 366 spinlock_t watch_points_lock; 367 368 /* Kernel doorbells for KFD device */ 369 struct amdgpu_bo *doorbells; 370 371 /* bitmap for dynamic doorbell allocation from doorbell object */ 372 unsigned long *doorbell_bitmap; 373}; 374 375enum kfd_mempool { 376 KFD_MEMPOOL_SYSTEM_CACHEABLE = 1, 377 KFD_MEMPOOL_SYSTEM_WRITECOMBINE = 2, 378 KFD_MEMPOOL_FRAMEBUFFER = 3, 379}; 380 381/* Character device interface */ 382int kfd_chardev_init(void); 383void kfd_chardev_exit(void); 384 385/** 386 * enum kfd_unmap_queues_filter - Enum for queue filters. 387 * 388 * @KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES: Preempts all queues in the 389 * running queues list. 390 * 391 * @KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES: Preempts all non-static queues 392 * in the run list. 393 * 394 * @KFD_UNMAP_QUEUES_FILTER_BY_PASID: Preempts queues that belongs to 395 * specific process. 396 * 397 */ 398enum kfd_unmap_queues_filter { 399 KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES = 1, 400 KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES = 2, 401 KFD_UNMAP_QUEUES_FILTER_BY_PASID = 3 402}; 403 404/** 405 * enum kfd_queue_type - Enum for various queue types. 406 * 407 * @KFD_QUEUE_TYPE_COMPUTE: Regular user mode queue type. 408 * 409 * @KFD_QUEUE_TYPE_SDMA: SDMA user mode queue type. 410 * 411 * @KFD_QUEUE_TYPE_HIQ: HIQ queue type. 412 * 413 * @KFD_QUEUE_TYPE_DIQ: DIQ queue type. 414 * 415 * @KFD_QUEUE_TYPE_SDMA_XGMI: Special SDMA queue for XGMI interface. 416 */ 417enum kfd_queue_type { 418 KFD_QUEUE_TYPE_COMPUTE, 419 KFD_QUEUE_TYPE_SDMA, 420 KFD_QUEUE_TYPE_HIQ, 421 KFD_QUEUE_TYPE_DIQ, 422 KFD_QUEUE_TYPE_SDMA_XGMI 423}; 424 425enum kfd_queue_format { 426 KFD_QUEUE_FORMAT_PM4, 427 KFD_QUEUE_FORMAT_AQL 428}; 429 430enum KFD_QUEUE_PRIORITY { 431 KFD_QUEUE_PRIORITY_MINIMUM = 0, 432 KFD_QUEUE_PRIORITY_MAXIMUM = 15 433}; 434 435/** 436 * struct queue_properties 437 * 438 * @type: The queue type. 439 * 440 * @queue_id: Queue identifier. 441 * 442 * @queue_address: Queue ring buffer address. 443 * 444 * @queue_size: Queue ring buffer size. 445 * 446 * @priority: Defines the queue priority relative to other queues in the 447 * process. 448 * This is just an indication and HW scheduling may override the priority as 449 * necessary while keeping the relative prioritization. 450 * the priority granularity is from 0 to f which f is the highest priority. 451 * currently all queues are initialized with the highest priority. 452 * 453 * @queue_percent: This field is partially implemented and currently a zero in 454 * this field defines that the queue is non active. 455 * 456 * @read_ptr: User space address which points to the number of dwords the 457 * cp read from the ring buffer. This field updates automatically by the H/W. 458 * 459 * @write_ptr: Defines the number of dwords written to the ring buffer. 460 * 461 * @doorbell_ptr: Notifies the H/W of new packet written to the queue ring 462 * buffer. This field should be similar to write_ptr and the user should 463 * update this field after updating the write_ptr. 464 * 465 * @doorbell_off: The doorbell offset in the doorbell pci-bar. 466 * 467 * @is_interop: Defines if this is a interop queue. Interop queue means that 468 * the queue can access both graphics and compute resources. 469 * 470 * @is_evicted: Defines if the queue is evicted. Only active queues 471 * are evicted, rendering them inactive. 472 * 473 * @is_active: Defines if the queue is active or not. @is_active and 474 * @is_evicted are protected by the DQM lock. 475 * 476 * @is_gws: Defines if the queue has been updated to be GWS-capable or not. 477 * @is_gws should be protected by the DQM lock, since changing it can yield the 478 * possibility of updating DQM state on number of GWS queues. 479 * 480 * @vmid: If the scheduling mode is no cp scheduling the field defines the vmid 481 * of the queue. 482 * 483 * This structure represents the queue properties for each queue no matter if 484 * it's user mode or kernel mode queue. 485 * 486 */ 487 488struct queue_properties { 489 enum kfd_queue_type type; 490 enum kfd_queue_format format; 491 unsigned int queue_id; 492 uint64_t queue_address; 493 uint64_t queue_size; 494 uint32_t priority; 495 uint32_t queue_percent; 496 uint32_t *read_ptr; 497 uint32_t *write_ptr; 498 void __iomem *doorbell_ptr; 499 uint32_t doorbell_off; 500 bool is_interop; 501 bool is_evicted; 502 bool is_suspended; 503 bool is_being_destroyed; 504 bool is_active; 505 bool is_gws; 506 uint32_t pm4_target_xcc; 507 bool is_dbg_wa; 508 bool is_user_cu_masked; 509 /* Not relevant for user mode queues in cp scheduling */ 510 unsigned int vmid; 511 /* Relevant only for sdma queues*/ 512 uint32_t sdma_engine_id; 513 uint32_t sdma_queue_id; 514 uint32_t sdma_vm_addr; 515 /* Relevant only for VI */ 516 uint64_t eop_ring_buffer_address; 517 uint32_t eop_ring_buffer_size; 518 uint64_t ctx_save_restore_area_address; 519 uint32_t ctx_save_restore_area_size; 520 uint32_t ctl_stack_size; 521 uint64_t tba_addr; 522 uint64_t tma_addr; 523 uint64_t exception_status; 524}; 525 526#define QUEUE_IS_ACTIVE(q) ((q).queue_size > 0 && \ 527 (q).queue_address != 0 && \ 528 (q).queue_percent > 0 && \ 529 !(q).is_evicted && \ 530 !(q).is_suspended) 531 532enum mqd_update_flag { 533 UPDATE_FLAG_DBG_WA_ENABLE = 1, 534 UPDATE_FLAG_DBG_WA_DISABLE = 2, 535 UPDATE_FLAG_IS_GWS = 4, /* quirk for gfx9 IP */ 536}; 537 538struct mqd_update_info { 539 union { 540 struct { 541 uint32_t count; /* Must be a multiple of 32 */ 542 uint32_t *ptr; 543 } cu_mask; 544 }; 545 enum mqd_update_flag update_flag; 546}; 547 548/** 549 * struct queue 550 * 551 * @list: Queue linked list. 552 * 553 * @mqd: The queue MQD (memory queue descriptor). 554 * 555 * @mqd_mem_obj: The MQD local gpu memory object. 556 * 557 * @gart_mqd_addr: The MQD gart mc address. 558 * 559 * @properties: The queue properties. 560 * 561 * @mec: Used only in no cp scheduling mode and identifies to micro engine id 562 * that the queue should be executed on. 563 * 564 * @pipe: Used only in no cp scheduling mode and identifies the queue's pipe 565 * id. 566 * 567 * @queue: Used only in no cp scheduliong mode and identifies the queue's slot. 568 * 569 * @process: The kfd process that created this queue. 570 * 571 * @device: The kfd device that created this queue. 572 * 573 * @gws: Pointing to gws kgd_mem if this is a gws control queue; NULL 574 * otherwise. 575 * 576 * This structure represents user mode compute queues. 577 * It contains all the necessary data to handle such queues. 578 * 579 */ 580 581struct queue { 582 struct list_head list; 583 void *mqd; 584 struct kfd_mem_obj *mqd_mem_obj; 585 uint64_t gart_mqd_addr; 586 struct queue_properties properties; 587 588 uint32_t mec; 589 uint32_t pipe; 590 uint32_t queue; 591 592 unsigned int sdma_id; 593 unsigned int doorbell_id; 594 595 struct kfd_process *process; 596 struct kfd_node *device; 597 void *gws; 598 599 /* procfs */ 600 struct kobject kobj; 601 602 void *gang_ctx_bo; 603 uint64_t gang_ctx_gpu_addr; 604 void *gang_ctx_cpu_ptr; 605 606 struct amdgpu_bo *wptr_bo; 607}; 608 609enum KFD_MQD_TYPE { 610 KFD_MQD_TYPE_HIQ = 0, /* for hiq */ 611 KFD_MQD_TYPE_CP, /* for cp queues and diq */ 612 KFD_MQD_TYPE_SDMA, /* for sdma queues */ 613 KFD_MQD_TYPE_DIQ, /* for diq */ 614 KFD_MQD_TYPE_MAX 615}; 616 617enum KFD_PIPE_PRIORITY { 618 KFD_PIPE_PRIORITY_CS_LOW = 0, 619 KFD_PIPE_PRIORITY_CS_MEDIUM, 620 KFD_PIPE_PRIORITY_CS_HIGH 621}; 622 623struct scheduling_resources { 624 unsigned int vmid_mask; 625 enum kfd_queue_type type; 626 uint64_t queue_mask; 627 uint64_t gws_mask; 628 uint32_t oac_mask; 629 uint32_t gds_heap_base; 630 uint32_t gds_heap_size; 631}; 632 633struct process_queue_manager { 634 /* data */ 635 struct kfd_process *process; 636 struct list_head queues; 637 unsigned long *queue_slot_bitmap; 638}; 639 640struct qcm_process_device { 641 /* The Device Queue Manager that owns this data */ 642 struct device_queue_manager *dqm; 643 struct process_queue_manager *pqm; 644 /* Queues list */ 645 struct list_head queues_list; 646 struct list_head priv_queue_list; 647 648 unsigned int queue_count; 649 unsigned int vmid; 650 bool is_debug; 651 unsigned int evicted; /* eviction counter, 0=active */ 652 653 /* This flag tells if we should reset all wavefronts on 654 * process termination 655 */ 656 bool reset_wavefronts; 657 658 /* This flag tells us if this process has a GWS-capable 659 * queue that will be mapped into the runlist. It's 660 * possible to request a GWS BO, but not have the queue 661 * currently mapped, and this changes how the MAP_PROCESS 662 * PM4 packet is configured. 663 */ 664 bool mapped_gws_queue; 665 666 /* All the memory management data should be here too */ 667 uint64_t gds_context_area; 668 /* Contains page table flags such as AMDGPU_PTE_VALID since gfx9 */ 669 uint64_t page_table_base; 670 uint32_t sh_mem_config; 671 uint32_t sh_mem_bases; 672 uint32_t sh_mem_ape1_base; 673 uint32_t sh_mem_ape1_limit; 674 uint32_t gds_size; 675 uint32_t num_gws; 676 uint32_t num_oac; 677 uint32_t sh_hidden_private_base; 678 679 /* CWSR memory */ 680 struct kgd_mem *cwsr_mem; 681 void *cwsr_kaddr; 682 uint64_t cwsr_base; 683 uint64_t tba_addr; 684 uint64_t tma_addr; 685 686 /* IB memory */ 687 struct kgd_mem *ib_mem; 688 uint64_t ib_base; 689 void *ib_kaddr; 690 691 /* doorbells for kfd process */ 692 struct amdgpu_bo *proc_doorbells; 693 694 /* bitmap for dynamic doorbell allocation from the bo */ 695 unsigned long *doorbell_bitmap; 696}; 697 698/* KFD Memory Eviction */ 699 700/* Approx. wait time before attempting to restore evicted BOs */ 701#define PROCESS_RESTORE_TIME_MS 100 702/* Approx. back off time if restore fails due to lack of memory */ 703#define PROCESS_BACK_OFF_TIME_MS 100 704/* Approx. time before evicting the process again */ 705#define PROCESS_ACTIVE_TIME_MS 10 706 707/* 8 byte handle containing GPU ID in the most significant 4 bytes and 708 * idr_handle in the least significant 4 bytes 709 */ 710#define MAKE_HANDLE(gpu_id, idr_handle) \ 711 (((uint64_t)(gpu_id) << 32) + idr_handle) 712#define GET_GPU_ID(handle) (handle >> 32) 713#define GET_IDR_HANDLE(handle) (handle & 0xFFFFFFFF) 714 715enum kfd_pdd_bound { 716 PDD_UNBOUND = 0, 717 PDD_BOUND, 718 PDD_BOUND_SUSPENDED, 719}; 720 721#define MAX_SYSFS_FILENAME_LEN 15 722 723/* 724 * SDMA counter runs at 100MHz frequency. 725 * We display SDMA activity in microsecond granularity in sysfs. 726 * As a result, the divisor is 100. 727 */ 728#define SDMA_ACTIVITY_DIVISOR 100 729 730/* Data that is per-process-per device. */ 731struct kfd_process_device { 732 /* The device that owns this data. */ 733 struct kfd_node *dev; 734 735 /* The process that owns this kfd_process_device. */ 736 struct kfd_process *process; 737 738 /* per-process-per device QCM data structure */ 739 struct qcm_process_device qpd; 740 741 /*Apertures*/ 742 uint64_t lds_base; 743 uint64_t lds_limit; 744 uint64_t gpuvm_base; 745 uint64_t gpuvm_limit; 746 uint64_t scratch_base; 747 uint64_t scratch_limit; 748 749 /* VM context for GPUVM allocations */ 750 struct file *drm_file; 751 void *drm_priv; 752 753 /* GPUVM allocations storage */ 754 struct idr alloc_idr; 755 756 /* Flag used to tell the pdd has dequeued from the dqm. 757 * This is used to prevent dev->dqm->ops.process_termination() from 758 * being called twice when it is already called in IOMMU callback 759 * function. 760 */ 761 bool already_dequeued; 762 bool runtime_inuse; 763 764 /* Is this process/pasid bound to this device? (amd_iommu_bind_pasid) */ 765 enum kfd_pdd_bound bound; 766 767 /* VRAM usage */ 768 uint64_t vram_usage; 769 struct attribute attr_vram; 770 char vram_filename[MAX_SYSFS_FILENAME_LEN]; 771 772 /* SDMA activity tracking */ 773 uint64_t sdma_past_activity_counter; 774 struct attribute attr_sdma; 775 char sdma_filename[MAX_SYSFS_FILENAME_LEN]; 776 777 /* Eviction activity tracking */ 778 uint64_t last_evict_timestamp; 779 atomic64_t evict_duration_counter; 780 struct attribute attr_evict; 781 782 struct kobject *kobj_stats; 783 784 /* 785 * @cu_occupancy: Reports occupancy of Compute Units (CU) of a process 786 * that is associated with device encoded by "this" struct instance. The 787 * value reflects CU usage by all of the waves launched by this process 788 * on this device. A very important property of occupancy parameter is 789 * that its value is a snapshot of current use. 790 * 791 * Following is to be noted regarding how this parameter is reported: 792 * 793 * The number of waves that a CU can launch is limited by couple of 794 * parameters. These are encoded by struct amdgpu_cu_info instance 795 * that is part of every device definition. For GFX9 devices this 796 * translates to 40 waves (simd_per_cu * max_waves_per_simd) when waves 797 * do not use scratch memory and 32 waves (max_scratch_slots_per_cu) 798 * when they do use scratch memory. This could change for future 799 * devices and therefore this example should be considered as a guide. 800 * 801 * All CU's of a device are available for the process. This may not be true 802 * under certain conditions - e.g. CU masking. 803 * 804 * Finally number of CU's that are occupied by a process is affected by both 805 * number of CU's a device has along with number of other competing processes 806 */ 807 struct attribute attr_cu_occupancy; 808 809 /* sysfs counters for GPU retry fault and page migration tracking */ 810 struct kobject *kobj_counters; 811 struct attribute attr_faults; 812 struct attribute attr_page_in; 813 struct attribute attr_page_out; 814 uint64_t faults; 815 uint64_t page_in; 816 uint64_t page_out; 817 818 /* Exception code status*/ 819 uint64_t exception_status; 820 void *vm_fault_exc_data; 821 size_t vm_fault_exc_data_size; 822 823 /* Tracks debug per-vmid request settings */ 824 uint32_t spi_dbg_override; 825 uint32_t spi_dbg_launch_mode; 826 uint32_t watch_points[4]; 827 uint32_t alloc_watch_ids; 828 829 /* 830 * If this process has been checkpointed before, then the user 831 * application will use the original gpu_id on the 832 * checkpointed node to refer to this device. 833 */ 834 uint32_t user_gpu_id; 835 836 void *proc_ctx_bo; 837 uint64_t proc_ctx_gpu_addr; 838 void *proc_ctx_cpu_ptr; 839}; 840 841#define qpd_to_pdd(x) container_of(x, struct kfd_process_device, qpd) 842 843struct svm_range_list { 844 struct mutex lock; 845 struct rb_root_cached objects; 846 struct list_head list; 847 struct work_struct deferred_list_work; 848 struct list_head deferred_range_list; 849 struct list_head criu_svm_metadata_list; 850 spinlock_t deferred_list_lock; 851 atomic_t evicted_ranges; 852 atomic_t drain_pagefaults; 853 struct delayed_work restore_work; 854 DECLARE_BITMAP(bitmap_supported, MAX_GPU_INSTANCE); 855 struct task_struct *faulting_task; 856}; 857 858/* Process data */ 859struct kfd_process { 860 /* 861 * kfd_process are stored in an mm_struct*->kfd_process* 862 * hash table (kfd_processes in kfd_process.c) 863 */ 864 struct hlist_node kfd_processes; 865 866 /* 867 * Opaque pointer to mm_struct. We don't hold a reference to 868 * it so it should never be dereferenced from here. This is 869 * only used for looking up processes by their mm. 870 */ 871 void *mm; 872 873 struct kref ref; 874 struct work_struct release_work; 875 876 struct mutex mutex; 877 878 /* 879 * In any process, the thread that started main() is the lead 880 * thread and outlives the rest. 881 * It is here because amd_iommu_bind_pasid wants a task_struct. 882 * It can also be used for safely getting a reference to the 883 * mm_struct of the process. 884 */ 885 struct task_struct *lead_thread; 886 887 /* We want to receive a notification when the mm_struct is destroyed */ 888 struct mmu_notifier mmu_notifier; 889 890 u32 pasid; 891 892 /* 893 * Array of kfd_process_device pointers, 894 * one for each device the process is using. 895 */ 896 struct kfd_process_device *pdds[MAX_GPU_INSTANCE]; 897 uint32_t n_pdds; 898 899 struct process_queue_manager pqm; 900 901 /*Is the user space process 32 bit?*/ 902 bool is_32bit_user_mode; 903 904 /* Event-related data */ 905 struct mutex event_mutex; 906 /* Event ID allocator and lookup */ 907 struct idr event_idr; 908 /* Event page */ 909 u64 signal_handle; 910 struct kfd_signal_page *signal_page; 911 size_t signal_mapped_size; 912 size_t signal_event_count; 913 bool signal_event_limit_reached; 914 915 /* Information used for memory eviction */ 916 void *kgd_process_info; 917 /* Eviction fence that is attached to all the BOs of this process. The 918 * fence will be triggered during eviction and new one will be created 919 * during restore 920 */ 921 struct dma_fence __rcu *ef; 922 923 /* Work items for evicting and restoring BOs */ 924 struct delayed_work eviction_work; 925 struct delayed_work restore_work; 926 /* seqno of the last scheduled eviction */ 927 unsigned int last_eviction_seqno; 928 /* Approx. the last timestamp (in jiffies) when the process was 929 * restored after an eviction 930 */ 931 unsigned long last_restore_timestamp; 932 933 /* Indicates device process is debug attached with reserved vmid. */ 934 bool debug_trap_enabled; 935 936 /* per-process-per device debug event fd file */ 937 struct file *dbg_ev_file; 938 939 /* If the process is a kfd debugger, we need to know so we can clean 940 * up at exit time. If a process enables debugging on itself, it does 941 * its own clean-up, so we don't set the flag here. We track this by 942 * counting the number of processes this process is debugging. 943 */ 944 atomic_t debugged_process_count; 945 946 /* If the process is a debugged, this is the debugger process */ 947 struct kfd_process *debugger_process; 948 949 /* Kobj for our procfs */ 950 struct kobject *kobj; 951 struct kobject *kobj_queues; 952 struct attribute attr_pasid; 953 954 /* Keep track cwsr init */ 955 bool has_cwsr; 956 957 /* Exception code enable mask and status */ 958 uint64_t exception_enable_mask; 959 uint64_t exception_status; 960 961 /* Used to drain stale interrupts */ 962 wait_queue_head_t wait_irq_drain; 963 bool irq_drain_is_open; 964 965 /* shared virtual memory registered by this process */ 966 struct svm_range_list svms; 967 968 bool xnack_enabled; 969 970 /* Work area for debugger event writer worker. */ 971 struct work_struct debug_event_workarea; 972 973 /* Tracks debug per-vmid request for debug flags */ 974 u32 dbg_flags; 975 976 atomic_t poison; 977 /* Queues are in paused stated because we are in the process of doing a CRIU checkpoint */ 978 bool queues_paused; 979 980 /* Tracks runtime enable status */ 981 struct semaphore runtime_enable_sema; 982 bool is_runtime_retry; 983 struct kfd_runtime_info runtime_info; 984}; 985 986#define KFD_PROCESS_TABLE_SIZE 5 /* bits: 32 entries */ 987extern DECLARE_HASHTABLE(kfd_processes_table, KFD_PROCESS_TABLE_SIZE); 988extern struct srcu_struct kfd_processes_srcu; 989 990/** 991 * typedef amdkfd_ioctl_t - typedef for ioctl function pointer. 992 * 993 * @filep: pointer to file structure. 994 * @p: amdkfd process pointer. 995 * @data: pointer to arg that was copied from user. 996 * 997 * Return: returns ioctl completion code. 998 */ 999typedef int amdkfd_ioctl_t(struct file *filep, struct kfd_process *p, 1000 void *data); 1001 1002struct amdkfd_ioctl_desc { 1003 unsigned int cmd; 1004 int flags; 1005 amdkfd_ioctl_t *func; 1006 unsigned int cmd_drv; 1007 const char *name; 1008}; 1009bool kfd_dev_is_large_bar(struct kfd_node *dev); 1010 1011int kfd_process_create_wq(void); 1012void kfd_process_destroy_wq(void); 1013void kfd_cleanup_processes(void); 1014struct kfd_process *kfd_create_process(struct task_struct *thread); 1015struct kfd_process *kfd_get_process(const struct task_struct *task); 1016struct kfd_process *kfd_lookup_process_by_pasid(u32 pasid); 1017struct kfd_process *kfd_lookup_process_by_mm(const struct mm_struct *mm); 1018 1019int kfd_process_gpuidx_from_gpuid(struct kfd_process *p, uint32_t gpu_id); 1020int kfd_process_gpuid_from_node(struct kfd_process *p, struct kfd_node *node, 1021 uint32_t *gpuid, uint32_t *gpuidx); 1022static inline int kfd_process_gpuid_from_gpuidx(struct kfd_process *p, 1023 uint32_t gpuidx, uint32_t *gpuid) { 1024 return gpuidx < p->n_pdds ? p->pdds[gpuidx]->dev->id : -EINVAL; 1025} 1026static inline struct kfd_process_device *kfd_process_device_from_gpuidx( 1027 struct kfd_process *p, uint32_t gpuidx) { 1028 return gpuidx < p->n_pdds ? p->pdds[gpuidx] : NULL; 1029} 1030 1031void kfd_unref_process(struct kfd_process *p); 1032int kfd_process_evict_queues(struct kfd_process *p, uint32_t trigger); 1033int kfd_process_restore_queues(struct kfd_process *p); 1034void kfd_suspend_all_processes(void); 1035int kfd_resume_all_processes(void); 1036 1037struct kfd_process_device *kfd_process_device_data_by_id(struct kfd_process *process, 1038 uint32_t gpu_id); 1039 1040int kfd_process_get_user_gpu_id(struct kfd_process *p, uint32_t actual_gpu_id); 1041 1042int kfd_process_device_init_vm(struct kfd_process_device *pdd, 1043 struct file *drm_file); 1044struct kfd_process_device *kfd_bind_process_to_device(struct kfd_node *dev, 1045 struct kfd_process *p); 1046struct kfd_process_device *kfd_get_process_device_data(struct kfd_node *dev, 1047 struct kfd_process *p); 1048struct kfd_process_device *kfd_create_process_device_data(struct kfd_node *dev, 1049 struct kfd_process *p); 1050 1051bool kfd_process_xnack_mode(struct kfd_process *p, bool supported); 1052 1053int kfd_reserved_mem_mmap(struct kfd_node *dev, struct kfd_process *process, 1054 struct vm_area_struct *vma); 1055 1056/* KFD process API for creating and translating handles */ 1057int kfd_process_device_create_obj_handle(struct kfd_process_device *pdd, 1058 void *mem); 1059void *kfd_process_device_translate_handle(struct kfd_process_device *p, 1060 int handle); 1061void kfd_process_device_remove_obj_handle(struct kfd_process_device *pdd, 1062 int handle); 1063struct kfd_process *kfd_lookup_process_by_pid(struct pid *pid); 1064 1065/* PASIDs */ 1066int kfd_pasid_init(void); 1067void kfd_pasid_exit(void); 1068bool kfd_set_pasid_limit(unsigned int new_limit); 1069unsigned int kfd_get_pasid_limit(void); 1070u32 kfd_pasid_alloc(void); 1071void kfd_pasid_free(u32 pasid); 1072 1073/* Doorbells */ 1074size_t kfd_doorbell_process_slice(struct kfd_dev *kfd); 1075int kfd_doorbell_init(struct kfd_dev *kfd); 1076void kfd_doorbell_fini(struct kfd_dev *kfd); 1077int kfd_doorbell_mmap(struct kfd_node *dev, struct kfd_process *process, 1078 struct vm_area_struct *vma); 1079void __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, 1080 unsigned int *doorbell_off); 1081void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr); 1082u32 read_kernel_doorbell(u32 __iomem *db); 1083void write_kernel_doorbell(void __iomem *db, u32 value); 1084void write_kernel_doorbell64(void __iomem *db, u64 value); 1085unsigned int kfd_get_doorbell_dw_offset_in_bar(struct kfd_dev *kfd, 1086 struct kfd_process_device *pdd, 1087 unsigned int doorbell_id); 1088phys_addr_t kfd_get_process_doorbells(struct kfd_process_device *pdd); 1089int kfd_alloc_process_doorbells(struct kfd_dev *kfd, 1090 struct kfd_process_device *pdd); 1091void kfd_free_process_doorbells(struct kfd_dev *kfd, 1092 struct kfd_process_device *pdd); 1093/* GTT Sub-Allocator */ 1094 1095int kfd_gtt_sa_allocate(struct kfd_node *node, unsigned int size, 1096 struct kfd_mem_obj **mem_obj); 1097 1098int kfd_gtt_sa_free(struct kfd_node *node, struct kfd_mem_obj *mem_obj); 1099 1100extern struct device *kfd_device; 1101 1102/* KFD's procfs */ 1103void kfd_procfs_init(void); 1104void kfd_procfs_shutdown(void); 1105int kfd_procfs_add_queue(struct queue *q); 1106void kfd_procfs_del_queue(struct queue *q); 1107 1108/* Topology */ 1109int kfd_topology_init(void); 1110void kfd_topology_shutdown(void); 1111int kfd_topology_add_device(struct kfd_node *gpu); 1112int kfd_topology_remove_device(struct kfd_node *gpu); 1113struct kfd_topology_device *kfd_topology_device_by_proximity_domain( 1114 uint32_t proximity_domain); 1115struct kfd_topology_device *kfd_topology_device_by_proximity_domain_no_lock( 1116 uint32_t proximity_domain); 1117struct kfd_topology_device *kfd_topology_device_by_id(uint32_t gpu_id); 1118struct kfd_node *kfd_device_by_id(uint32_t gpu_id); 1119struct kfd_node *kfd_device_by_pci_dev(const struct pci_dev *pdev); 1120static inline bool kfd_irq_is_from_node(struct kfd_node *node, uint32_t node_id, 1121 uint32_t vmid) 1122{ 1123 return (node->interrupt_bitmap & (1 << node_id)) != 0 && 1124 (node->compute_vmid_bitmap & (1 << vmid)) != 0; 1125} 1126static inline struct kfd_node *kfd_node_by_irq_ids(struct amdgpu_device *adev, 1127 uint32_t node_id, uint32_t vmid) { 1128 struct kfd_dev *dev = adev->kfd.dev; 1129 uint32_t i; 1130 1131 if (KFD_GC_VERSION(dev) != IP_VERSION(9, 4, 3)) 1132 return dev->nodes[0]; 1133 1134 for (i = 0; i < dev->num_nodes; i++) 1135 if (kfd_irq_is_from_node(dev->nodes[i], node_id, vmid)) 1136 return dev->nodes[i]; 1137 1138 return NULL; 1139} 1140int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_node **kdev); 1141int kfd_numa_node_to_apic_id(int numa_node_id); 1142 1143/* Interrupts */ 1144#define KFD_IRQ_FENCE_CLIENTID 0xff 1145#define KFD_IRQ_FENCE_SOURCEID 0xff 1146#define KFD_IRQ_IS_FENCE(client, source) \ 1147 ((client) == KFD_IRQ_FENCE_CLIENTID && \ 1148 (source) == KFD_IRQ_FENCE_SOURCEID) 1149int kfd_interrupt_init(struct kfd_node *dev); 1150void kfd_interrupt_exit(struct kfd_node *dev); 1151bool enqueue_ih_ring_entry(struct kfd_node *kfd, const void *ih_ring_entry); 1152bool interrupt_is_wanted(struct kfd_node *dev, 1153 const uint32_t *ih_ring_entry, 1154 uint32_t *patched_ihre, bool *flag); 1155int kfd_process_drain_interrupts(struct kfd_process_device *pdd); 1156void kfd_process_close_interrupt_drain(unsigned int pasid); 1157 1158/* amdkfd Apertures */ 1159int kfd_init_apertures(struct kfd_process *process); 1160 1161void kfd_process_set_trap_handler(struct qcm_process_device *qpd, 1162 uint64_t tba_addr, 1163 uint64_t tma_addr); 1164void kfd_process_set_trap_debug_flag(struct qcm_process_device *qpd, 1165 bool enabled); 1166 1167/* CWSR initialization */ 1168int kfd_process_init_cwsr_apu(struct kfd_process *process, struct file *filep); 1169 1170/* CRIU */ 1171/* 1172 * Need to increment KFD_CRIU_PRIV_VERSION each time a change is made to any of the CRIU private 1173 * structures: 1174 * kfd_criu_process_priv_data 1175 * kfd_criu_device_priv_data 1176 * kfd_criu_bo_priv_data 1177 * kfd_criu_queue_priv_data 1178 * kfd_criu_event_priv_data 1179 * kfd_criu_svm_range_priv_data 1180 */ 1181 1182#define KFD_CRIU_PRIV_VERSION 1 1183 1184struct kfd_criu_process_priv_data { 1185 uint32_t version; 1186 uint32_t xnack_mode; 1187}; 1188 1189struct kfd_criu_device_priv_data { 1190 /* For future use */ 1191 uint64_t reserved; 1192}; 1193 1194struct kfd_criu_bo_priv_data { 1195 uint64_t user_addr; 1196 uint32_t idr_handle; 1197 uint32_t mapped_gpuids[MAX_GPU_INSTANCE]; 1198}; 1199 1200/* 1201 * The first 4 bytes of kfd_criu_queue_priv_data, kfd_criu_event_priv_data, 1202 * kfd_criu_svm_range_priv_data is the object type 1203 */ 1204enum kfd_criu_object_type { 1205 KFD_CRIU_OBJECT_TYPE_QUEUE, 1206 KFD_CRIU_OBJECT_TYPE_EVENT, 1207 KFD_CRIU_OBJECT_TYPE_SVM_RANGE, 1208}; 1209 1210struct kfd_criu_svm_range_priv_data { 1211 uint32_t object_type; 1212 uint64_t start_addr; 1213 uint64_t size; 1214 /* Variable length array of attributes */ 1215 struct kfd_ioctl_svm_attribute attrs[]; 1216}; 1217 1218struct kfd_criu_queue_priv_data { 1219 uint32_t object_type; 1220 uint64_t q_address; 1221 uint64_t q_size; 1222 uint64_t read_ptr_addr; 1223 uint64_t write_ptr_addr; 1224 uint64_t doorbell_off; 1225 uint64_t eop_ring_buffer_address; 1226 uint64_t ctx_save_restore_area_address; 1227 uint32_t gpu_id; 1228 uint32_t type; 1229 uint32_t format; 1230 uint32_t q_id; 1231 uint32_t priority; 1232 uint32_t q_percent; 1233 uint32_t doorbell_id; 1234 uint32_t gws; 1235 uint32_t sdma_id; 1236 uint32_t eop_ring_buffer_size; 1237 uint32_t ctx_save_restore_area_size; 1238 uint32_t ctl_stack_size; 1239 uint32_t mqd_size; 1240}; 1241 1242struct kfd_criu_event_priv_data { 1243 uint32_t object_type; 1244 uint64_t user_handle; 1245 uint32_t event_id; 1246 uint32_t auto_reset; 1247 uint32_t type; 1248 uint32_t signaled; 1249 1250 union { 1251 struct kfd_hsa_memory_exception_data memory_exception_data; 1252 struct kfd_hsa_hw_exception_data hw_exception_data; 1253 }; 1254}; 1255 1256int kfd_process_get_queue_info(struct kfd_process *p, 1257 uint32_t *num_queues, 1258 uint64_t *priv_data_sizes); 1259 1260int kfd_criu_checkpoint_queues(struct kfd_process *p, 1261 uint8_t __user *user_priv_data, 1262 uint64_t *priv_data_offset); 1263 1264int kfd_criu_restore_queue(struct kfd_process *p, 1265 uint8_t __user *user_priv_data, 1266 uint64_t *priv_data_offset, 1267 uint64_t max_priv_data_size); 1268 1269int kfd_criu_checkpoint_events(struct kfd_process *p, 1270 uint8_t __user *user_priv_data, 1271 uint64_t *priv_data_offset); 1272 1273int kfd_criu_restore_event(struct file *devkfd, 1274 struct kfd_process *p, 1275 uint8_t __user *user_priv_data, 1276 uint64_t *priv_data_offset, 1277 uint64_t max_priv_data_size); 1278/* CRIU - End */ 1279 1280/* Queue Context Management */ 1281int init_queue(struct queue **q, const struct queue_properties *properties); 1282void uninit_queue(struct queue *q); 1283void print_queue_properties(struct queue_properties *q); 1284void print_queue(struct queue *q); 1285 1286struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type, 1287 struct kfd_node *dev); 1288struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type, 1289 struct kfd_node *dev); 1290struct mqd_manager *mqd_manager_init_v9(enum KFD_MQD_TYPE type, 1291 struct kfd_node *dev); 1292struct mqd_manager *mqd_manager_init_v10(enum KFD_MQD_TYPE type, 1293 struct kfd_node *dev); 1294struct mqd_manager *mqd_manager_init_v11(enum KFD_MQD_TYPE type, 1295 struct kfd_node *dev); 1296struct device_queue_manager *device_queue_manager_init(struct kfd_node *dev); 1297void device_queue_manager_uninit(struct device_queue_manager *dqm); 1298struct kernel_queue *kernel_queue_init(struct kfd_node *dev, 1299 enum kfd_queue_type type); 1300void kernel_queue_uninit(struct kernel_queue *kq, bool hanging); 1301int kfd_dqm_evict_pasid(struct device_queue_manager *dqm, u32 pasid); 1302 1303/* Process Queue Manager */ 1304struct process_queue_node { 1305 struct queue *q; 1306 struct kernel_queue *kq; 1307 struct list_head process_queue_list; 1308}; 1309 1310void kfd_process_dequeue_from_device(struct kfd_process_device *pdd); 1311void kfd_process_dequeue_from_all_devices(struct kfd_process *p); 1312int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p); 1313void pqm_uninit(struct process_queue_manager *pqm); 1314int pqm_create_queue(struct process_queue_manager *pqm, 1315 struct kfd_node *dev, 1316 struct file *f, 1317 struct queue_properties *properties, 1318 unsigned int *qid, 1319 struct amdgpu_bo *wptr_bo, 1320 const struct kfd_criu_queue_priv_data *q_data, 1321 const void *restore_mqd, 1322 const void *restore_ctl_stack, 1323 uint32_t *p_doorbell_offset_in_process); 1324int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid); 1325int pqm_update_queue_properties(struct process_queue_manager *pqm, unsigned int qid, 1326 struct queue_properties *p); 1327int pqm_update_mqd(struct process_queue_manager *pqm, unsigned int qid, 1328 struct mqd_update_info *minfo); 1329int pqm_set_gws(struct process_queue_manager *pqm, unsigned int qid, 1330 void *gws); 1331struct kernel_queue *pqm_get_kernel_queue(struct process_queue_manager *pqm, 1332 unsigned int qid); 1333struct queue *pqm_get_user_queue(struct process_queue_manager *pqm, 1334 unsigned int qid); 1335int pqm_get_wave_state(struct process_queue_manager *pqm, 1336 unsigned int qid, 1337 void __user *ctl_stack, 1338 u32 *ctl_stack_used_size, 1339 u32 *save_area_used_size); 1340int pqm_get_queue_snapshot(struct process_queue_manager *pqm, 1341 uint64_t exception_clear_mask, 1342 void __user *buf, 1343 int *num_qss_entries, 1344 uint32_t *entry_size); 1345 1346int amdkfd_fence_wait_timeout(struct device_queue_manager *dqm, 1347 uint64_t fence_value, 1348 unsigned int timeout_ms); 1349 1350int pqm_get_queue_checkpoint_info(struct process_queue_manager *pqm, 1351 unsigned int qid, 1352 u32 *mqd_size, 1353 u32 *ctl_stack_size); 1354/* Packet Manager */ 1355 1356#define KFD_FENCE_COMPLETED (100) 1357#define KFD_FENCE_INIT (10) 1358 1359struct packet_manager { 1360 struct device_queue_manager *dqm; 1361 struct kernel_queue *priv_queue; 1362 struct mutex lock; 1363 bool allocated; 1364 struct kfd_mem_obj *ib_buffer_obj; 1365 unsigned int ib_size_bytes; 1366 bool is_over_subscription; 1367 1368 const struct packet_manager_funcs *pmf; 1369}; 1370 1371struct packet_manager_funcs { 1372 /* Support ASIC-specific packet formats for PM4 packets */ 1373 int (*map_process)(struct packet_manager *pm, uint32_t *buffer, 1374 struct qcm_process_device *qpd); 1375 int (*runlist)(struct packet_manager *pm, uint32_t *buffer, 1376 uint64_t ib, size_t ib_size_in_dwords, bool chain); 1377 int (*set_resources)(struct packet_manager *pm, uint32_t *buffer, 1378 struct scheduling_resources *res); 1379 int (*map_queues)(struct packet_manager *pm, uint32_t *buffer, 1380 struct queue *q, bool is_static); 1381 int (*unmap_queues)(struct packet_manager *pm, uint32_t *buffer, 1382 enum kfd_unmap_queues_filter mode, 1383 uint32_t filter_param, bool reset); 1384 int (*set_grace_period)(struct packet_manager *pm, uint32_t *buffer, 1385 uint32_t grace_period); 1386 int (*query_status)(struct packet_manager *pm, uint32_t *buffer, 1387 uint64_t fence_address, uint64_t fence_value); 1388 int (*release_mem)(uint64_t gpu_addr, uint32_t *buffer); 1389 1390 /* Packet sizes */ 1391 int map_process_size; 1392 int runlist_size; 1393 int set_resources_size; 1394 int map_queues_size; 1395 int unmap_queues_size; 1396 int set_grace_period_size; 1397 int query_status_size; 1398 int release_mem_size; 1399}; 1400 1401extern const struct packet_manager_funcs kfd_vi_pm_funcs; 1402extern const struct packet_manager_funcs kfd_v9_pm_funcs; 1403extern const struct packet_manager_funcs kfd_aldebaran_pm_funcs; 1404 1405int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm); 1406void pm_uninit(struct packet_manager *pm, bool hanging); 1407int pm_send_set_resources(struct packet_manager *pm, 1408 struct scheduling_resources *res); 1409int pm_send_runlist(struct packet_manager *pm, struct list_head *dqm_queues); 1410int pm_send_query_status(struct packet_manager *pm, uint64_t fence_address, 1411 uint64_t fence_value); 1412 1413int pm_send_unmap_queue(struct packet_manager *pm, 1414 enum kfd_unmap_queues_filter mode, 1415 uint32_t filter_param, bool reset); 1416 1417void pm_release_ib(struct packet_manager *pm); 1418 1419int pm_update_grace_period(struct packet_manager *pm, uint32_t grace_period); 1420 1421/* Following PM funcs can be shared among VI and AI */ 1422unsigned int pm_build_pm4_header(unsigned int opcode, size_t packet_size); 1423 1424uint64_t kfd_get_number_elems(struct kfd_dev *kfd); 1425 1426/* Events */ 1427extern const struct kfd_event_interrupt_class event_interrupt_class_cik; 1428extern const struct kfd_event_interrupt_class event_interrupt_class_v9; 1429extern const struct kfd_event_interrupt_class event_interrupt_class_v9_4_3; 1430extern const struct kfd_event_interrupt_class event_interrupt_class_v10; 1431extern const struct kfd_event_interrupt_class event_interrupt_class_v11; 1432 1433extern const struct kfd_device_global_init_class device_global_init_class_cik; 1434 1435int kfd_event_init_process(struct kfd_process *p); 1436void kfd_event_free_process(struct kfd_process *p); 1437int kfd_event_mmap(struct kfd_process *process, struct vm_area_struct *vma); 1438int kfd_wait_on_events(struct kfd_process *p, 1439 uint32_t num_events, void __user *data, 1440 bool all, uint32_t *user_timeout_ms, 1441 uint32_t *wait_result); 1442void kfd_signal_event_interrupt(u32 pasid, uint32_t partial_id, 1443 uint32_t valid_id_bits); 1444void kfd_signal_hw_exception_event(u32 pasid); 1445int kfd_set_event(struct kfd_process *p, uint32_t event_id); 1446int kfd_reset_event(struct kfd_process *p, uint32_t event_id); 1447int kfd_kmap_event_page(struct kfd_process *p, uint64_t event_page_offset); 1448 1449int kfd_event_create(struct file *devkfd, struct kfd_process *p, 1450 uint32_t event_type, bool auto_reset, uint32_t node_id, 1451 uint32_t *event_id, uint32_t *event_trigger_data, 1452 uint64_t *event_page_offset, uint32_t *event_slot_index); 1453 1454int kfd_get_num_events(struct kfd_process *p); 1455int kfd_event_destroy(struct kfd_process *p, uint32_t event_id); 1456 1457void kfd_signal_vm_fault_event(struct kfd_node *dev, u32 pasid, 1458 struct kfd_vm_fault_info *info, 1459 struct kfd_hsa_memory_exception_data *data); 1460 1461void kfd_signal_reset_event(struct kfd_node *dev); 1462 1463void kfd_signal_poison_consumed_event(struct kfd_node *dev, u32 pasid); 1464 1465static inline void kfd_flush_tlb(struct kfd_process_device *pdd, 1466 enum TLB_FLUSH_TYPE type) 1467{ 1468 struct amdgpu_device *adev = pdd->dev->adev; 1469 struct amdgpu_vm *vm = drm_priv_to_vm(pdd->drm_priv); 1470 1471 amdgpu_vm_flush_compute_tlb(adev, vm, type, pdd->dev->xcc_mask); 1472} 1473 1474static inline bool kfd_flush_tlb_after_unmap(struct kfd_dev *dev) 1475{ 1476 return KFD_GC_VERSION(dev) >= IP_VERSION(9, 4, 2) || 1477 (KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 1) && dev->sdma_fw_version >= 18) || 1478 KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 0); 1479} 1480 1481int kfd_send_exception_to_runtime(struct kfd_process *p, 1482 unsigned int queue_id, 1483 uint64_t error_reason); 1484bool kfd_is_locked(void); 1485 1486/* Compute profile */ 1487void kfd_inc_compute_active(struct kfd_node *dev); 1488void kfd_dec_compute_active(struct kfd_node *dev); 1489 1490/* Cgroup Support */ 1491/* Check with device cgroup if @kfd device is accessible */ 1492static inline int kfd_devcgroup_check_permission(struct kfd_node *node) 1493{ 1494#if defined(CONFIG_CGROUP_DEVICE) || defined(CONFIG_CGROUP_BPF) 1495 struct drm_device *ddev; 1496 1497 if (node->xcp) 1498 ddev = node->xcp->ddev; 1499 else 1500 ddev = adev_to_drm(node->adev); 1501 1502 return devcgroup_check_permission(DEVCG_DEV_CHAR, DRM_MAJOR, 1503 ddev->render->index, 1504 DEVCG_ACC_WRITE | DEVCG_ACC_READ); 1505#else 1506 return 0; 1507#endif 1508} 1509 1510static inline bool kfd_is_first_node(struct kfd_node *node) 1511{ 1512 return (node == node->kfd->nodes[0]); 1513} 1514 1515/* Debugfs */ 1516#if defined(CONFIG_DEBUG_FS) 1517 1518void kfd_debugfs_init(void); 1519void kfd_debugfs_fini(void); 1520int kfd_debugfs_mqds_by_process(struct seq_file *m, void *data); 1521int pqm_debugfs_mqds(struct seq_file *m, void *data); 1522int kfd_debugfs_hqds_by_device(struct seq_file *m, void *data); 1523int dqm_debugfs_hqds(struct seq_file *m, void *data); 1524int kfd_debugfs_rls_by_device(struct seq_file *m, void *data); 1525int pm_debugfs_runlist(struct seq_file *m, void *data); 1526 1527int kfd_debugfs_hang_hws(struct kfd_node *dev); 1528int pm_debugfs_hang_hws(struct packet_manager *pm); 1529int dqm_debugfs_hang_hws(struct device_queue_manager *dqm); 1530 1531#else 1532 1533static inline void kfd_debugfs_init(void) {} 1534static inline void kfd_debugfs_fini(void) {} 1535 1536#endif 1537 1538#endif 1539