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