drivers/gpu/drm/amd/amdkfd/kfd_priv.h

   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 <kgd_kfd_interface.h>
  35
  36 #define KFD_SYSFS_FILE_MODE 0444
  37
  38 #define KFD_MMAP_DOORBELL_MASK 0x8000000000000
  39 #define KFD_MMAP_EVENTS_MASK 0x4000000000000
  40
  41 /*
  42  * When working with cp scheduler we should assign the HIQ manually or via
  43  * the radeon driver to a fixed hqd slot, here are the fixed HIQ hqd slot
  44  * definitions for Kaveri. In Kaveri only the first ME queues participates
  45  * in the cp scheduling taking that in mind we set the HIQ slot in the
  46  * second ME.
  47  */
  48 #define KFD_CIK_HIQ_PIPE 4
  49 #define KFD_CIK_HIQ_QUEUE 0
  50
  51 /* GPU ID hash width in bits */
  52 #define KFD_GPU_ID_HASH_WIDTH 16
  53
  54 /* Macro for allocating structures */
  55 #define kfd_alloc_struct(ptr_to_struct) \
  56         ((typeof(ptr_to_struct)) kzalloc(sizeof(*ptr_to_struct), GFP_KERNEL))
  57
  58 #define KFD_MAX_NUM_OF_PROCESSES 512
  59 #define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS 1024
  60
  61 /*
  62  * Kernel module parameter to specify maximum number of supported queues per
  63  * device
  64  */
  65 extern int max_num_of_queues_per_device;
  66
  67 #define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE_DEFAULT 4096
  68 #define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE                \
  69         (KFD_MAX_NUM_OF_PROCESSES *                     \
  70                         KFD_MAX_NUM_OF_QUEUES_PER_PROCESS)
  71
  72 #define KFD_KERNEL_QUEUE_SIZE 2048
  73
  74 /* Kernel module parameter to specify the scheduling policy */
  75 extern int sched_policy;
  76
  77 /*
  78  * Kernel module parameter to specify whether to send sigterm to HSA process on
  79  * unhandled exception
  80  */
  81 extern int send_sigterm;
  82
  83 /**
  84  * enum kfd_sched_policy
  85  *
  86  * @KFD_SCHED_POLICY_HWS: H/W scheduling policy known as command processor (cp)
  87  * scheduling. In this scheduling mode we're using the firmware code to
  88  * schedule the user mode queues and kernel queues such as HIQ and DIQ.
  89  * the HIQ queue is used as a special queue that dispatches the configuration
  90  * to the cp and the user mode queues list that are currently running.
  91  * the DIQ queue is a debugging queue that dispatches debugging commands to the
  92  * firmware.
  93  * in this scheduling mode user mode queues over subscription feature is
  94  * enabled.
  95  *
  96  * @KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION: The same as above but the over
  97  * subscription feature disabled.
  98  *
  99  * @KFD_SCHED_POLICY_NO_HWS: no H/W scheduling policy is a mode which directly
 100  * set the command processor registers and sets the queues "manually". This
 101  * mode is used *ONLY* for debugging proposes.
 102  *
 103  */
 104 enum kfd_sched_policy {
 105         KFD_SCHED_POLICY_HWS = 0,
 106         KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION,
 107         KFD_SCHED_POLICY_NO_HWS
 108 };
 109
 110 enum cache_policy {
 111         cache_policy_coherent,
 112         cache_policy_noncoherent
 113 };
 114
 115 enum asic_family_type {
 116         CHIP_KAVERI = 0,
 117         CHIP_CARRIZO
 118 };
 119
 120 struct kfd_event_interrupt_class {
 121         bool (*interrupt_isr)(struct kfd_dev *dev,
 122                                 const uint32_t *ih_ring_entry);
 123         void (*interrupt_wq)(struct kfd_dev *dev,
 124                                 const uint32_t *ih_ring_entry);
 125 };
 126
 127 struct kfd_device_info {
 128         unsigned int asic_family;
 129         const struct kfd_event_interrupt_class *event_interrupt_class;
 130         unsigned int max_pasid_bits;
 131         unsigned int max_no_of_hqd;
 132         size_t ih_ring_entry_size;
 133         uint8_t num_of_watch_points;
 134         uint16_t mqd_size_aligned;
 135 };
 136
 137 struct kfd_mem_obj {
 138         uint32_t range_start;
 139         uint32_t range_end;
 140         uint64_t gpu_addr;
 141         uint32_t *cpu_ptr;
 142 };
 143
 144 struct kfd_dev {
 145         struct kgd_dev *kgd;
 146
 147         const struct kfd_device_info *device_info;
 148         struct pci_dev *pdev;
 149
 150         unsigned int id;                /* topology stub index */
 151
 152         phys_addr_t doorbell_base;      /* Start of actual doorbells used by
 153                                          * KFD. It is aligned for mapping
 154                                          * into user mode
 155                                          */
 156         size_t doorbell_id_offset;      /* Doorbell offset (from KFD doorbell
 157                                          * to HW doorbell, GFX reserved some
 158                                          * at the start)
 159                                          */
 160         size_t doorbell_process_limit;  /* Number of processes we have doorbell
 161                                          * space for.
 162                                          */
 163         u32 __iomem *doorbell_kernel_ptr; /* This is a pointer for a doorbells
 164                                            * page used by kernel queue
 165                                            */
 166
 167         struct kgd2kfd_shared_resources shared_resources;
 168
 169         const struct kfd2kgd_calls *kfd2kgd;
 170         struct mutex doorbell_mutex;
 171         DECLARE_BITMAP(doorbell_available_index,
 172                         KFD_MAX_NUM_OF_QUEUES_PER_PROCESS);
 173
 174         void *gtt_mem;
 175         uint64_t gtt_start_gpu_addr;
 176         void *gtt_start_cpu_ptr;
 177         void *gtt_sa_bitmap;
 178         struct mutex gtt_sa_lock;
 179         unsigned int gtt_sa_chunk_size;
 180         unsigned int gtt_sa_num_of_chunks;
 181
 182         /* Interrupts */
 183         void *interrupt_ring;
 184         size_t interrupt_ring_size;
 185         atomic_t interrupt_ring_rptr;
 186         atomic_t interrupt_ring_wptr;
 187         struct work_struct interrupt_work;
 188         spinlock_t interrupt_lock;
 189
 190         /* QCM Device instance */
 191         struct device_queue_manager *dqm;
 192
 193         bool init_complete;
 194         /*
 195          * Interrupts of interest to KFD are copied
 196          * from the HW ring into a SW ring.
 197          */
 198         bool interrupts_active;
 199
 200         /* Debug manager */
 201         struct kfd_dbgmgr           *dbgmgr;
 202 };
 203
 204 /* KGD2KFD callbacks */
 205 void kgd2kfd_exit(void);
 206 struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd,
 207                         struct pci_dev *pdev, const struct kfd2kgd_calls *f2g);
 208 bool kgd2kfd_device_init(struct kfd_dev *kfd,
 209                         const struct kgd2kfd_shared_resources *gpu_resources);
 210 void kgd2kfd_device_exit(struct kfd_dev *kfd);
 211
 212 enum kfd_mempool {
 213         KFD_MEMPOOL_SYSTEM_CACHEABLE = 1,
 214         KFD_MEMPOOL_SYSTEM_WRITECOMBINE = 2,
 215         KFD_MEMPOOL_FRAMEBUFFER = 3,
 216 };
 217
 218 /* Character device interface */
 219 int kfd_chardev_init(void);
 220 void kfd_chardev_exit(void);
 221 struct device *kfd_chardev(void);
 222
 223 /**
 224  * enum kfd_preempt_type_filter
 225  *
 226  * @KFD_PREEMPT_TYPE_FILTER_SINGLE_QUEUE: Preempts single queue.
 227  *
 228  * @KFD_PRERMPT_TYPE_FILTER_ALL_QUEUES: Preempts all queues in the
 229  *                                              running queues list.
 230  *
 231  * @KFD_PRERMPT_TYPE_FILTER_BY_PASID: Preempts queues that belongs to
 232  *                                              specific process.
 233  *
 234  */
 235 enum kfd_preempt_type_filter {
 236         KFD_PREEMPT_TYPE_FILTER_SINGLE_QUEUE,
 237         KFD_PREEMPT_TYPE_FILTER_ALL_QUEUES,
 238         KFD_PREEMPT_TYPE_FILTER_DYNAMIC_QUEUES,
 239         KFD_PREEMPT_TYPE_FILTER_BY_PASID
 240 };
 241
 242 enum kfd_preempt_type {
 243         KFD_PREEMPT_TYPE_WAVEFRONT,
 244         KFD_PREEMPT_TYPE_WAVEFRONT_RESET
 245 };
 246
 247 /**
 248  * enum kfd_queue_type
 249  *
 250  * @KFD_QUEUE_TYPE_COMPUTE: Regular user mode queue type.
 251  *
 252  * @KFD_QUEUE_TYPE_SDMA: Sdma user mode queue type.
 253  *
 254  * @KFD_QUEUE_TYPE_HIQ: HIQ queue type.
 255  *
 256  * @KFD_QUEUE_TYPE_DIQ: DIQ queue type.
 257  */
 258 enum kfd_queue_type  {
 259         KFD_QUEUE_TYPE_COMPUTE,
 260         KFD_QUEUE_TYPE_SDMA,
 261         KFD_QUEUE_TYPE_HIQ,
 262         KFD_QUEUE_TYPE_DIQ
 263 };
 264
 265 enum kfd_queue_format {
 266         KFD_QUEUE_FORMAT_PM4,
 267         KFD_QUEUE_FORMAT_AQL
 268 };
 269
 270 /**
 271  * struct queue_properties
 272  *
 273  * @type: The queue type.
 274  *
 275  * @queue_id: Queue identifier.
 276  *
 277  * @queue_address: Queue ring buffer address.
 278  *
 279  * @queue_size: Queue ring buffer size.
 280  *
 281  * @priority: Defines the queue priority relative to other queues in the
 282  * process.
 283  * This is just an indication and HW scheduling may override the priority as
 284  * necessary while keeping the relative prioritization.
 285  * the priority granularity is from 0 to f which f is the highest priority.
 286  * currently all queues are initialized with the highest priority.
 287  *
 288  * @queue_percent: This field is partially implemented and currently a zero in
 289  * this field defines that the queue is non active.
 290  *
 291  * @read_ptr: User space address which points to the number of dwords the
 292  * cp read from the ring buffer. This field updates automatically by the H/W.
 293  *
 294  * @write_ptr: Defines the number of dwords written to the ring buffer.
 295  *
 296  * @doorbell_ptr: This field aim is to notify the H/W of new packet written to
 297  * the queue ring buffer. This field should be similar to write_ptr and the user
 298  * should update this field after he updated the write_ptr.
 299  *
 300  * @doorbell_off: The doorbell offset in the doorbell pci-bar.
 301  *
 302  * @is_interop: Defines if this is a interop queue. Interop queue means that the
 303  * queue can access both graphics and compute resources.
 304  *
 305  * @is_active: Defines if the queue is active or not.
 306  *
 307  * @vmid: If the scheduling mode is no cp scheduling the field defines the vmid
 308  * of the queue.
 309  *
 310  * This structure represents the queue properties for each queue no matter if
 311  * it's user mode or kernel mode queue.
 312  *
 313  */
 314 struct queue_properties {
 315         enum kfd_queue_type type;
 316         enum kfd_queue_format format;
 317         unsigned int queue_id;
 318         uint64_t queue_address;
 319         uint64_t  queue_size;
 320         uint32_t priority;
 321         uint32_t queue_percent;
 322         uint32_t *read_ptr;
 323         uint32_t *write_ptr;
 324         uint32_t __iomem *doorbell_ptr;
 325         uint32_t doorbell_off;
 326         bool is_interop;
 327         bool is_active;
 328         /* Not relevant for user mode queues in cp scheduling */
 329         unsigned int vmid;
 330         /* Relevant only for sdma queues*/
 331         uint32_t sdma_engine_id;
 332         uint32_t sdma_queue_id;
 333         uint32_t sdma_vm_addr;
 334         /* Relevant only for VI */
 335         uint64_t eop_ring_buffer_address;
 336         uint32_t eop_ring_buffer_size;
 337         uint64_t ctx_save_restore_area_address;
 338         uint32_t ctx_save_restore_area_size;
 339 };
 340
 341 /**
 342  * struct queue
 343  *
 344  * @list: Queue linked list.
 345  *
 346  * @mqd: The queue MQD.
 347  *
 348  * @mqd_mem_obj: The MQD local gpu memory object.
 349  *
 350  * @gart_mqd_addr: The MQD gart mc address.
 351  *
 352  * @properties: The queue properties.
 353  *
 354  * @mec: Used only in no cp scheduling mode and identifies to micro engine id
 355  * that the queue should be execute on.
 356  *
 357  * @pipe: Used only in no cp scheduling mode and identifies the queue's pipe id.
 358  *
 359  * @queue: Used only in no cp scheduliong mode and identifies the queue's slot.
 360  *
 361  * @process: The kfd process that created this queue.
 362  *
 363  * @device: The kfd device that created this queue.
 364  *
 365  * This structure represents user mode compute queues.
 366  * It contains all the necessary data to handle such queues.
 367  *
 368  */
 369
 370 struct queue {
 371         struct list_head list;
 372         void *mqd;
 373         struct kfd_mem_obj *mqd_mem_obj;
 374         uint64_t gart_mqd_addr;
 375         struct queue_properties properties;
 376
 377         uint32_t mec;
 378         uint32_t pipe;
 379         uint32_t queue;
 380
 381         unsigned int sdma_id;
 382
 383         struct kfd_process      *process;
 384         struct kfd_dev          *device;
 385 };
 386
 387 /*
 388  * Please read the kfd_mqd_manager.h description.
 389  */
 390 enum KFD_MQD_TYPE {
 391         KFD_MQD_TYPE_COMPUTE = 0,       /* for no cp scheduling */
 392         KFD_MQD_TYPE_HIQ,               /* for hiq */
 393         KFD_MQD_TYPE_CP,                /* for cp queues and diq */
 394         KFD_MQD_TYPE_SDMA,              /* for sdma queues */
 395         KFD_MQD_TYPE_MAX
 396 };
 397
 398 struct scheduling_resources {
 399         unsigned int vmid_mask;
 400         enum kfd_queue_type type;
 401         uint64_t queue_mask;
 402         uint64_t gws_mask;
 403         uint32_t oac_mask;
 404         uint32_t gds_heap_base;
 405         uint32_t gds_heap_size;
 406 };
 407
 408 struct process_queue_manager {
 409         /* data */
 410         struct kfd_process      *process;
 411         unsigned int            num_concurrent_processes;
 412         struct list_head        queues;
 413         unsigned long           *queue_slot_bitmap;
 414 };
 415
 416 struct qcm_process_device {
 417         /* The Device Queue Manager that owns this data */
 418         struct device_queue_manager *dqm;
 419         struct process_queue_manager *pqm;
 420         /* Queues list */
 421         struct list_head queues_list;
 422         struct list_head priv_queue_list;
 423
 424         unsigned int queue_count;
 425         unsigned int vmid;
 426         bool is_debug;
 427         /*
 428          * All the memory management data should be here too
 429          */
 430         uint64_t gds_context_area;
 431         uint32_t sh_mem_config;
 432         uint32_t sh_mem_bases;
 433         uint32_t sh_mem_ape1_base;
 434         uint32_t sh_mem_ape1_limit;
 435         uint32_t page_table_base;
 436         uint32_t gds_size;
 437         uint32_t num_gws;
 438         uint32_t num_oac;
 439 };
 440
 441 /* Data that is per-process-per device. */
 442 struct kfd_process_device {
 443         /*
 444          * List of all per-device data for a process.
 445          * Starts from kfd_process.per_device_data.
 446          */
 447         struct list_head per_device_list;
 448
 449         /* The device that owns this data. */
 450         struct kfd_dev *dev;
 451
 452
 453         /* per-process-per device QCM data structure */
 454         struct qcm_process_device qpd;
 455
 456         /*Apertures*/
 457         uint64_t lds_base;
 458         uint64_t lds_limit;
 459         uint64_t gpuvm_base;
 460         uint64_t gpuvm_limit;
 461         uint64_t scratch_base;
 462         uint64_t scratch_limit;
 463
 464         /* Is this process/pasid bound to this device? (amd_iommu_bind_pasid) */
 465         bool bound;
 466
 467         /* This flag tells if we should reset all
 468          * wavefronts on process termination
 469          */
 470         bool reset_wavefronts;
 471 };
 472
 473 #define qpd_to_pdd(x) container_of(x, struct kfd_process_device, qpd)
 474
 475 /* Process data */
 476 struct kfd_process {
 477         /*
 478          * kfd_process are stored in an mm_struct*->kfd_process*
 479          * hash table (kfd_processes in kfd_process.c)
 480          */
 481         struct hlist_node kfd_processes;
 482
 483         struct mm_struct *mm;
 484
 485         struct mutex mutex;
 486
 487         /*
 488          * In any process, the thread that started main() is the lead
 489          * thread and outlives the rest.
 490          * It is here because amd_iommu_bind_pasid wants a task_struct.
 491          */
 492         struct task_struct *lead_thread;
 493
 494         /* We want to receive a notification when the mm_struct is destroyed */
 495         struct mmu_notifier mmu_notifier;
 496
 497         /* Use for delayed freeing of kfd_process structure */
 498         struct rcu_head rcu;
 499
 500         unsigned int pasid;
 501
 502         /*
 503          * List of kfd_process_device structures,
 504          * one for each device the process is using.
 505          */
 506         struct list_head per_device_data;
 507
 508         struct process_queue_manager pqm;
 509
 510         /* The process's queues. */
 511         size_t queue_array_size;
 512
 513         /* Size is queue_array_size, up to MAX_PROCESS_QUEUES. */
 514         struct kfd_queue **queues;
 515
 516         /*Is the user space process 32 bit?*/
 517         bool is_32bit_user_mode;
 518
 519         /* Event-related data */
 520         struct mutex event_mutex;
 521         /* All events in process hashed by ID, linked on kfd_event.events. */
 522         DECLARE_HASHTABLE(events, 4);
 523         struct list_head signal_event_pages;    /* struct slot_page_header.
 524                                                                 event_pages */
 525         u32 next_nonsignal_event_id;
 526         size_t signal_event_count;
 527 };
 528
 529 /**
 530  * Ioctl function type.
 531  *
 532  * \param filep pointer to file structure.
 533  * \param p amdkfd process pointer.
 534  * \param data pointer to arg that was copied from user.
 535  */
 536 typedef int amdkfd_ioctl_t(struct file *filep, struct kfd_process *p,
 537                                 void *data);
 538
 539 struct amdkfd_ioctl_desc {
 540         unsigned int cmd;
 541         int flags;
 542         amdkfd_ioctl_t *func;
 543         unsigned int cmd_drv;
 544         const char *name;
 545 };
 546
 547 void kfd_process_create_wq(void);
 548 void kfd_process_destroy_wq(void);
 549 struct kfd_process *kfd_create_process(const struct task_struct *);
 550 struct kfd_process *kfd_get_process(const struct task_struct *);
 551 struct kfd_process *kfd_lookup_process_by_pasid(unsigned int pasid);
 552
 553 struct kfd_process_device *kfd_bind_process_to_device(struct kfd_dev *dev,
 554                                                         struct kfd_process *p);
 555 void kfd_unbind_process_from_device(struct kfd_dev *dev, unsigned int pasid);
 556 struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev,
 557                                                         struct kfd_process *p);
 558 struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev,
 559                                                         struct kfd_process *p);
 560
 561 /* Process device data iterator */
 562 struct kfd_process_device *kfd_get_first_process_device_data(struct kfd_process *p);
 563 struct kfd_process_device *kfd_get_next_process_device_data(struct kfd_process *p,
 564                                                 struct kfd_process_device *pdd);
 565 bool kfd_has_process_device_data(struct kfd_process *p);
 566
 567 /* PASIDs */
 568 int kfd_pasid_init(void);
 569 void kfd_pasid_exit(void);
 570 bool kfd_set_pasid_limit(unsigned int new_limit);
 571 unsigned int kfd_get_pasid_limit(void);
 572 unsigned int kfd_pasid_alloc(void);
 573 void kfd_pasid_free(unsigned int pasid);
 574
 575 /* Doorbells */
 576 void kfd_doorbell_init(struct kfd_dev *kfd);
 577 int kfd_doorbell_mmap(struct kfd_process *process, struct vm_area_struct *vma);
 578 u32 __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd,
 579                                         unsigned int *doorbell_off);
 580 void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr);
 581 u32 read_kernel_doorbell(u32 __iomem *db);
 582 void write_kernel_doorbell(u32 __iomem *db, u32 value);
 583 unsigned int kfd_queue_id_to_doorbell(struct kfd_dev *kfd,
 584                                         struct kfd_process *process,
 585                                         unsigned int queue_id);
 586
 587 /* GTT Sub-Allocator */
 588
 589 int kfd_gtt_sa_allocate(struct kfd_dev *kfd, unsigned int size,
 590                         struct kfd_mem_obj **mem_obj);
 591
 592 int kfd_gtt_sa_free(struct kfd_dev *kfd, struct kfd_mem_obj *mem_obj);
 593
 594 extern struct device *kfd_device;
 595
 596 /* Topology */
 597 int kfd_topology_init(void);
 598 void kfd_topology_shutdown(void);
 599 int kfd_topology_add_device(struct kfd_dev *gpu);
 600 int kfd_topology_remove_device(struct kfd_dev *gpu);
 601 struct kfd_dev *kfd_device_by_id(uint32_t gpu_id);
 602 struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev);
 603 struct kfd_dev *kfd_topology_enum_kfd_devices(uint8_t idx);
 604
 605 /* Interrupts */
 606 int kfd_interrupt_init(struct kfd_dev *dev);
 607 void kfd_interrupt_exit(struct kfd_dev *dev);
 608 void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry);
 609 bool enqueue_ih_ring_entry(struct kfd_dev *kfd, const void *ih_ring_entry);
 610 bool interrupt_is_wanted(struct kfd_dev *dev, const uint32_t *ih_ring_entry);
 611
 612 /* Power Management */
 613 void kgd2kfd_suspend(struct kfd_dev *kfd);
 614 int kgd2kfd_resume(struct kfd_dev *kfd);
 615
 616 /* amdkfd Apertures */
 617 int kfd_init_apertures(struct kfd_process *process);
 618
 619 /* Queue Context Management */
 620 inline uint32_t lower_32(uint64_t x);
 621 inline uint32_t upper_32(uint64_t x);
 622 struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd);
 623 inline uint32_t get_sdma_base_addr(struct cik_sdma_rlc_registers *m);
 624
 625 int init_queue(struct queue **q, struct queue_properties properties);
 626 void uninit_queue(struct queue *q);
 627 void print_queue_properties(struct queue_properties *q);
 628 void print_queue(struct queue *q);
 629
 630 struct mqd_manager *mqd_manager_init(enum KFD_MQD_TYPE type,
 631                                         struct kfd_dev *dev);
 632 struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type,
 633                 struct kfd_dev *dev);
 634 struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type,
 635                 struct kfd_dev *dev);
 636 struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev);
 637 void device_queue_manager_uninit(struct device_queue_manager *dqm);
 638 struct kernel_queue *kernel_queue_init(struct kfd_dev *dev,
 639                                         enum kfd_queue_type type);
 640 void kernel_queue_uninit(struct kernel_queue *kq);
 641
 642 /* Process Queue Manager */
 643 struct process_queue_node {
 644         struct queue *q;
 645         struct kernel_queue *kq;
 646         struct list_head process_queue_list;
 647 };
 648
 649 int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p);
 650 void pqm_uninit(struct process_queue_manager *pqm);
 651 int pqm_create_queue(struct process_queue_manager *pqm,
 652                             struct kfd_dev *dev,
 653                             struct file *f,
 654                             struct queue_properties *properties,
 655                             unsigned int flags,
 656                             enum kfd_queue_type type,
 657                             unsigned int *qid);
 658 int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid);
 659 int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid,
 660                         struct queue_properties *p);
 661 struct kernel_queue *pqm_get_kernel_queue(struct process_queue_manager *pqm,
 662                                                 unsigned int qid);
 663
 664 int amdkfd_fence_wait_timeout(unsigned int *fence_addr,
 665                                 unsigned int fence_value,
 666                                 unsigned long timeout);
 667
 668 /* Packet Manager */
 669
 670 #define KFD_HIQ_TIMEOUT (500)
 671
 672 #define KFD_FENCE_COMPLETED (100)
 673 #define KFD_FENCE_INIT   (10)
 674 #define KFD_UNMAP_LATENCY (150)
 675
 676 struct packet_manager {
 677         struct device_queue_manager *dqm;
 678         struct kernel_queue *priv_queue;
 679         struct mutex lock;
 680         bool allocated;
 681         struct kfd_mem_obj *ib_buffer_obj;
 682 };
 683
 684 int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm);
 685 void pm_uninit(struct packet_manager *pm);
 686 int pm_send_set_resources(struct packet_manager *pm,
 687                                 struct scheduling_resources *res);
 688 int pm_send_runlist(struct packet_manager *pm, struct list_head *dqm_queues);
 689 int pm_send_query_status(struct packet_manager *pm, uint64_t fence_address,
 690                                 uint32_t fence_value);
 691
 692 int pm_send_unmap_queue(struct packet_manager *pm, enum kfd_queue_type type,
 693                         enum kfd_preempt_type_filter mode,
 694                         uint32_t filter_param, bool reset,
 695                         unsigned int sdma_engine);
 696
 697 void pm_release_ib(struct packet_manager *pm);
 698
 699 uint64_t kfd_get_number_elems(struct kfd_dev *kfd);
 700 phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev,
 701                                         struct kfd_process *process);
 702
 703 /* Events */
 704 extern const struct kfd_event_interrupt_class event_interrupt_class_cik;
 705 extern const struct kfd_device_global_init_class device_global_init_class_cik;
 706
 707 enum kfd_event_wait_result {
 708         KFD_WAIT_COMPLETE,
 709         KFD_WAIT_TIMEOUT,
 710         KFD_WAIT_ERROR
 711 };
 712
 713 void kfd_event_init_process(struct kfd_process *p);
 714 void kfd_event_free_process(struct kfd_process *p);
 715 int kfd_event_mmap(struct kfd_process *process, struct vm_area_struct *vma);
 716 int kfd_wait_on_events(struct kfd_process *p,
 717                        uint32_t num_events, void __user *data,
 718                        bool all, uint32_t user_timeout_ms,
 719                        enum kfd_event_wait_result *wait_result);
 720 void kfd_signal_event_interrupt(unsigned int pasid, uint32_t partial_id,
 721                                 uint32_t valid_id_bits);
 722 void kfd_signal_iommu_event(struct kfd_dev *dev,
 723                 unsigned int pasid, unsigned long address,
 724                 bool is_write_requested, bool is_execute_requested);
 725 void kfd_signal_hw_exception_event(unsigned int pasid);
 726 int kfd_set_event(struct kfd_process *p, uint32_t event_id);
 727 int kfd_reset_event(struct kfd_process *p, uint32_t event_id);
 728 int kfd_event_create(struct file *devkfd, struct kfd_process *p,
 729                      uint32_t event_type, bool auto_reset, uint32_t node_id,
 730                      uint32_t *event_id, uint32_t *event_trigger_data,
 731                      uint64_t *event_page_offset, uint32_t *event_slot_index);
 732 int kfd_event_destroy(struct kfd_process *p, uint32_t event_id);
 733
 734 int dbgdev_wave_reset_wavefronts(struct kfd_dev *dev, struct kfd_process *p);
 735
 736 #endif