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