2 * Copyright 2014 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
23 #ifndef KFD_PRIV_H_INCLUDED
24 #define KFD_PRIV_H_INCLUDED
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>
36 #define KFD_SYSFS_FILE_MODE 0444
38 #define KFD_MMAP_DOORBELL_MASK 0x8000000000000
39 #define KFD_MMAP_EVENTS_MASK 0x4000000000000
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
48 #define KFD_CIK_HIQ_PIPE 4
49 #define KFD_CIK_HIQ_QUEUE 0
51 /* GPU ID hash width in bits */
52 #define KFD_GPU_ID_HASH_WIDTH 16
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))
58 #define KFD_MAX_NUM_OF_PROCESSES 512
59 #define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS 1024
62 * Kernel module parameter to specify maximum number of supported queues per
65 extern int max_num_of_queues_per_device
;
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)
72 #define KFD_KERNEL_QUEUE_SIZE 2048
74 /* Kernel module parameter to specify the scheduling policy */
75 extern int sched_policy
;
78 * Kernel module parameter to specify whether to send sigterm to HSA process on
81 extern int send_sigterm
;
84 * enum kfd_sched_policy
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
93 * in this scheduling mode user mode queues over subscription feature is
96 * @KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION: The same as above but the over
97 * subscription feature disabled.
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.
104 enum kfd_sched_policy
{
105 KFD_SCHED_POLICY_HWS
= 0,
106 KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION
,
107 KFD_SCHED_POLICY_NO_HWS
111 cache_policy_coherent
,
112 cache_policy_noncoherent
115 enum asic_family_type
{
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
);
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
;
137 uint32_t range_start
;
146 const struct kfd_device_info
*device_info
;
147 struct pci_dev
*pdev
;
149 unsigned int id
; /* topology stub index */
151 phys_addr_t doorbell_base
; /* Start of actual doorbells used by
152 * KFD. It is aligned for mapping
155 size_t doorbell_id_offset
; /* Doorbell offset (from KFD doorbell
156 * to HW doorbell, GFX reserved some
159 size_t doorbell_process_limit
; /* Number of processes we have doorbell
162 u32 __iomem
*doorbell_kernel_ptr
; /* This is a pointer for a doorbells
163 * page used by kernel queue
166 struct kgd2kfd_shared_resources shared_resources
;
168 const struct kfd2kgd_calls
*kfd2kgd
;
169 struct mutex doorbell_mutex
;
170 DECLARE_BITMAP(doorbell_available_index
,
171 KFD_MAX_NUM_OF_QUEUES_PER_PROCESS
);
174 uint64_t gtt_start_gpu_addr
;
175 void *gtt_start_cpu_ptr
;
177 struct mutex gtt_sa_lock
;
178 unsigned int gtt_sa_chunk_size
;
179 unsigned int gtt_sa_num_of_chunks
;
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
;
189 /* QCM Device instance */
190 struct device_queue_manager
*dqm
;
194 * Interrupts of interest to KFD are copied
195 * from the HW ring into a SW ring.
197 bool interrupts_active
;
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
);
209 KFD_MEMPOOL_SYSTEM_CACHEABLE
= 1,
210 KFD_MEMPOOL_SYSTEM_WRITECOMBINE
= 2,
211 KFD_MEMPOOL_FRAMEBUFFER
= 3,
214 /* Character device interface */
215 int kfd_chardev_init(void);
216 void kfd_chardev_exit(void);
217 struct device
*kfd_chardev(void);
220 * enum kfd_preempt_type_filter
222 * @KFD_PREEMPT_TYPE_FILTER_SINGLE_QUEUE: Preempts single queue.
224 * @KFD_PRERMPT_TYPE_FILTER_ALL_QUEUES: Preempts all queues in the
225 * running queues list.
227 * @KFD_PRERMPT_TYPE_FILTER_BY_PASID: Preempts queues that belongs to
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
237 enum kfd_preempt_type
{
238 KFD_PREEMPT_TYPE_WAVEFRONT
,
239 KFD_PREEMPT_TYPE_WAVEFRONT_RESET
243 * enum kfd_queue_type
245 * @KFD_QUEUE_TYPE_COMPUTE: Regular user mode queue type.
247 * @KFD_QUEUE_TYPE_SDMA: Sdma user mode queue type.
249 * @KFD_QUEUE_TYPE_HIQ: HIQ queue type.
251 * @KFD_QUEUE_TYPE_DIQ: DIQ queue type.
253 enum kfd_queue_type
{
254 KFD_QUEUE_TYPE_COMPUTE
,
260 enum kfd_queue_format
{
261 KFD_QUEUE_FORMAT_PM4
,
266 * struct queue_properties
268 * @type: The queue type.
270 * @queue_id: Queue identifier.
272 * @queue_address: Queue ring buffer address.
274 * @queue_size: Queue ring buffer size.
276 * @priority: Defines the queue priority relative to other queues in the
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.
283 * @queue_percent: This field is partially implemented and currently a zero in
284 * this field defines that the queue is non active.
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.
289 * @write_ptr: Defines the number of dwords written to the ring buffer.
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.
295 * @doorbell_off: The doorbell offset in the doorbell pci-bar.
297 * @is_interop: Defines if this is a interop queue. Interop queue means that the
298 * queue can access both graphics and compute resources.
300 * @is_active: Defines if the queue is active or not.
302 * @vmid: If the scheduling mode is no cp scheduling the field defines the vmid
305 * This structure represents the queue properties for each queue no matter if
306 * it's user mode or kernel mode queue.
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
;
316 uint32_t queue_percent
;
319 uint32_t __iomem
*doorbell_ptr
;
320 uint32_t doorbell_off
;
323 /* Not relevant for user mode queues in cp scheduling */
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
;
339 * @list: Queue linked list.
341 * @mqd: The queue MQD.
343 * @mqd_mem_obj: The MQD local gpu memory object.
345 * @gart_mqd_addr: The MQD gart mc address.
347 * @properties: The queue properties.
349 * @mec: Used only in no cp scheduling mode and identifies to micro engine id
350 * that the queue should be execute on.
352 * @pipe: Used only in no cp scheduling mode and identifies the queue's pipe id.
354 * @queue: Used only in no cp scheduliong mode and identifies the queue's slot.
356 * @process: The kfd process that created this queue.
358 * @device: The kfd device that created this queue.
360 * This structure represents user mode compute queues.
361 * It contains all the necessary data to handle such queues.
366 struct list_head list
;
368 struct kfd_mem_obj
*mqd_mem_obj
;
369 uint64_t gart_mqd_addr
;
370 struct queue_properties properties
;
376 unsigned int sdma_id
;
378 struct kfd_process
*process
;
379 struct kfd_dev
*device
;
383 * Please read the kfd_mqd_manager.h description.
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 */
393 struct scheduling_resources
{
394 unsigned int vmid_mask
;
395 enum kfd_queue_type type
;
399 uint32_t gds_heap_base
;
400 uint32_t gds_heap_size
;
403 struct process_queue_manager
{
405 struct kfd_process
*process
;
406 unsigned int num_concurrent_processes
;
407 struct list_head queues
;
408 unsigned long *queue_slot_bitmap
;
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
;
416 struct list_head queues_list
;
417 struct list_head priv_queue_list
;
419 unsigned int queue_count
;
423 * All the memory management data should be here too
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
;
436 /* Data that is per-process-per device. */
437 struct kfd_process_device
{
439 * List of all per-device data for a process.
440 * Starts from kfd_process.per_device_data.
442 struct list_head per_device_list
;
444 /* The device that owns this data. */
448 /* per-process-per device QCM data structure */
449 struct qcm_process_device qpd
;
455 uint64_t gpuvm_limit
;
456 uint64_t scratch_base
;
457 uint64_t scratch_limit
;
459 /* Is this process/pasid bound to this device? (amd_iommu_bind_pasid) */
463 #define qpd_to_pdd(x) container_of(x, struct kfd_process_device, qpd)
468 * kfd_process are stored in an mm_struct*->kfd_process*
469 * hash table (kfd_processes in kfd_process.c)
471 struct hlist_node kfd_processes
;
473 struct mm_struct
*mm
;
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.
482 struct task_struct
*lead_thread
;
484 /* We want to receive a notification when the mm_struct is destroyed */
485 struct mmu_notifier mmu_notifier
;
487 /* Use for delayed freeing of kfd_process structure */
493 * List of kfd_process_device structures,
494 * one for each device the process is using.
496 struct list_head per_device_data
;
498 struct process_queue_manager pqm
;
500 /* The process's queues. */
501 size_t queue_array_size
;
503 /* Size is queue_array_size, up to MAX_PROCESS_QUEUES. */
504 struct kfd_queue
**queues
;
506 /*Is the user space process 32 bit?*/
507 bool is_32bit_user_mode
;
509 /* Event-related data */
510 struct mutex event_mutex
;
511 /* All events in process hashed by ID, linked on kfd_event.events. */
512 DECLARE_HASHTABLE(events
, 4);
513 struct list_head signal_event_pages
; /* struct slot_page_header.
515 u32 next_nonsignal_event_id
;
516 size_t signal_event_count
;
520 * Ioctl function type.
522 * \param filep pointer to file structure.
523 * \param p amdkfd process pointer.
524 * \param data pointer to arg that was copied from user.
526 typedef int amdkfd_ioctl_t(struct file
*filep
, struct kfd_process
*p
,
529 struct amdkfd_ioctl_desc
{
532 amdkfd_ioctl_t
*func
;
533 unsigned int cmd_drv
;
537 void kfd_process_create_wq(void);
538 void kfd_process_destroy_wq(void);
539 struct kfd_process
*kfd_create_process(const struct task_struct
*);
540 struct kfd_process
*kfd_get_process(const struct task_struct
*);
541 struct kfd_process
*kfd_lookup_process_by_pasid(unsigned int pasid
);
543 struct kfd_process_device
*kfd_bind_process_to_device(struct kfd_dev
*dev
,
544 struct kfd_process
*p
);
545 void kfd_unbind_process_from_device(struct kfd_dev
*dev
, unsigned int pasid
);
546 struct kfd_process_device
*kfd_get_process_device_data(struct kfd_dev
*dev
,
547 struct kfd_process
*p
);
548 struct kfd_process_device
*kfd_create_process_device_data(struct kfd_dev
*dev
,
549 struct kfd_process
*p
);
551 /* Process device data iterator */
552 struct kfd_process_device
*kfd_get_first_process_device_data(struct kfd_process
*p
);
553 struct kfd_process_device
*kfd_get_next_process_device_data(struct kfd_process
*p
,
554 struct kfd_process_device
*pdd
);
555 bool kfd_has_process_device_data(struct kfd_process
*p
);
558 int kfd_pasid_init(void);
559 void kfd_pasid_exit(void);
560 bool kfd_set_pasid_limit(unsigned int new_limit
);
561 unsigned int kfd_get_pasid_limit(void);
562 unsigned int kfd_pasid_alloc(void);
563 void kfd_pasid_free(unsigned int pasid
);
566 void kfd_doorbell_init(struct kfd_dev
*kfd
);
567 int kfd_doorbell_mmap(struct kfd_process
*process
, struct vm_area_struct
*vma
);
568 u32 __iomem
*kfd_get_kernel_doorbell(struct kfd_dev
*kfd
,
569 unsigned int *doorbell_off
);
570 void kfd_release_kernel_doorbell(struct kfd_dev
*kfd
, u32 __iomem
*db_addr
);
571 u32
read_kernel_doorbell(u32 __iomem
*db
);
572 void write_kernel_doorbell(u32 __iomem
*db
, u32 value
);
573 unsigned int kfd_queue_id_to_doorbell(struct kfd_dev
*kfd
,
574 struct kfd_process
*process
,
575 unsigned int queue_id
);
577 /* GTT Sub-Allocator */
579 int kfd_gtt_sa_allocate(struct kfd_dev
*kfd
, unsigned int size
,
580 struct kfd_mem_obj
**mem_obj
);
582 int kfd_gtt_sa_free(struct kfd_dev
*kfd
, struct kfd_mem_obj
*mem_obj
);
584 extern struct device
*kfd_device
;
587 int kfd_topology_init(void);
588 void kfd_topology_shutdown(void);
589 int kfd_topology_add_device(struct kfd_dev
*gpu
);
590 int kfd_topology_remove_device(struct kfd_dev
*gpu
);
591 struct kfd_dev
*kfd_device_by_id(uint32_t gpu_id
);
592 struct kfd_dev
*kfd_device_by_pci_dev(const struct pci_dev
*pdev
);
593 struct kfd_dev
*kfd_topology_enum_kfd_devices(uint8_t idx
);
596 int kfd_interrupt_init(struct kfd_dev
*dev
);
597 void kfd_interrupt_exit(struct kfd_dev
*dev
);
598 void kgd2kfd_interrupt(struct kfd_dev
*kfd
, const void *ih_ring_entry
);
599 bool enqueue_ih_ring_entry(struct kfd_dev
*kfd
, const void *ih_ring_entry
);
600 bool interrupt_is_wanted(struct kfd_dev
*dev
, const uint32_t *ih_ring_entry
);
602 /* Power Management */
603 void kgd2kfd_suspend(struct kfd_dev
*kfd
);
604 int kgd2kfd_resume(struct kfd_dev
*kfd
);
606 /* amdkfd Apertures */
607 int kfd_init_apertures(struct kfd_process
*process
);
609 /* Queue Context Management */
610 inline uint32_t lower_32(uint64_t x
);
611 inline uint32_t upper_32(uint64_t x
);
612 struct cik_sdma_rlc_registers
*get_sdma_mqd(void *mqd
);
613 inline uint32_t get_sdma_base_addr(struct cik_sdma_rlc_registers
*m
);
615 int init_queue(struct queue
**q
, struct queue_properties properties
);
616 void uninit_queue(struct queue
*q
);
617 void print_queue_properties(struct queue_properties
*q
);
618 void print_queue(struct queue
*q
);
620 struct mqd_manager
*mqd_manager_init(enum KFD_MQD_TYPE type
,
621 struct kfd_dev
*dev
);
622 struct mqd_manager
*mqd_manager_init_cik(enum KFD_MQD_TYPE type
,
623 struct kfd_dev
*dev
);
624 struct mqd_manager
*mqd_manager_init_vi(enum KFD_MQD_TYPE type
,
625 struct kfd_dev
*dev
);
626 struct device_queue_manager
*device_queue_manager_init(struct kfd_dev
*dev
);
627 void device_queue_manager_uninit(struct device_queue_manager
*dqm
);
628 struct kernel_queue
*kernel_queue_init(struct kfd_dev
*dev
,
629 enum kfd_queue_type type
);
630 void kernel_queue_uninit(struct kernel_queue
*kq
);
632 /* Process Queue Manager */
633 struct process_queue_node
{
635 struct kernel_queue
*kq
;
636 struct list_head process_queue_list
;
639 int pqm_init(struct process_queue_manager
*pqm
, struct kfd_process
*p
);
640 void pqm_uninit(struct process_queue_manager
*pqm
);
641 int pqm_create_queue(struct process_queue_manager
*pqm
,
644 struct queue_properties
*properties
,
646 enum kfd_queue_type type
,
648 int pqm_destroy_queue(struct process_queue_manager
*pqm
, unsigned int qid
);
649 int pqm_update_queue(struct process_queue_manager
*pqm
, unsigned int qid
,
650 struct queue_properties
*p
);
654 #define KFD_HIQ_TIMEOUT (500)
656 #define KFD_FENCE_COMPLETED (100)
657 #define KFD_FENCE_INIT (10)
658 #define KFD_UNMAP_LATENCY (150)
660 struct packet_manager
{
661 struct device_queue_manager
*dqm
;
662 struct kernel_queue
*priv_queue
;
665 struct kfd_mem_obj
*ib_buffer_obj
;
668 int pm_init(struct packet_manager
*pm
, struct device_queue_manager
*dqm
);
669 void pm_uninit(struct packet_manager
*pm
);
670 int pm_send_set_resources(struct packet_manager
*pm
,
671 struct scheduling_resources
*res
);
672 int pm_send_runlist(struct packet_manager
*pm
, struct list_head
*dqm_queues
);
673 int pm_send_query_status(struct packet_manager
*pm
, uint64_t fence_address
,
674 uint32_t fence_value
);
676 int pm_send_unmap_queue(struct packet_manager
*pm
, enum kfd_queue_type type
,
677 enum kfd_preempt_type_filter mode
,
678 uint32_t filter_param
, bool reset
,
679 unsigned int sdma_engine
);
681 void pm_release_ib(struct packet_manager
*pm
);
683 uint64_t kfd_get_number_elems(struct kfd_dev
*kfd
);
684 phys_addr_t
kfd_get_process_doorbells(struct kfd_dev
*dev
,
685 struct kfd_process
*process
);
688 extern const struct kfd_event_interrupt_class event_interrupt_class_cik
;
689 extern const struct kfd_device_global_init_class device_global_init_class_cik
;
691 enum kfd_event_wait_result
{
697 void kfd_event_init_process(struct kfd_process
*p
);
698 void kfd_event_free_process(struct kfd_process
*p
);
699 int kfd_event_mmap(struct kfd_process
*process
, struct vm_area_struct
*vma
);
700 int kfd_wait_on_events(struct kfd_process
*p
,
701 uint32_t num_events
, void __user
*data
,
702 bool all
, uint32_t user_timeout_ms
,
703 enum kfd_event_wait_result
*wait_result
);
704 void kfd_signal_event_interrupt(unsigned int pasid
, uint32_t partial_id
,
705 uint32_t valid_id_bits
);
706 void kfd_signal_iommu_event(struct kfd_dev
*dev
,
707 unsigned int pasid
, unsigned long address
,
708 bool is_write_requested
, bool is_execute_requested
);
709 void kfd_signal_hw_exception_event(unsigned int pasid
);
710 int kfd_set_event(struct kfd_process
*p
, uint32_t event_id
);
711 int kfd_reset_event(struct kfd_process
*p
, uint32_t event_id
);
712 int kfd_event_create(struct file
*devkfd
, struct kfd_process
*p
,
713 uint32_t event_type
, bool auto_reset
, uint32_t node_id
,
714 uint32_t *event_id
, uint32_t *event_trigger_data
,
715 uint64_t *event_page_offset
, uint32_t *event_slot_index
);
716 int kfd_event_destroy(struct kfd_process
*p
, uint32_t event_id
);