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_IOCTL_H_INCLUDED
24#define KFD_IOCTL_H_INCLUDED
25
26#include <drm/drm.h>
27#include <linux/ioctl.h>
28
29/*
30 * - 1.1 - initial version
31 * - 1.3 - Add SMI events support
32 * - 1.4 - Indicate new SRAM EDC bit in device properties
33 * - 1.5 - Add SVM API
34 * - 1.6 - Query clear flags in SVM get_attr API
35 * - 1.7 - Checkpoint Restore (CRIU) API
36 * - 1.8 - CRIU - Support for SDMA transfers with GTT BOs
37 * - 1.9 - Add available memory ioctl
38 * - 1.10 - Add SMI profiler event log
39 * - 1.11 - Add unified memory for ctx save/restore area
40 * - 1.12 - Add DMA buf export ioctl
41 * - 1.13 - Add debugger API
42 * - 1.14 - Update kfd_event_data
43 */
44#define KFD_IOCTL_MAJOR_VERSION 1
45#define KFD_IOCTL_MINOR_VERSION 14
46
47struct kfd_ioctl_get_version_args {
48 __u32 major_version; /* from KFD */
49 __u32 minor_version; /* from KFD */
50};
51
52/* For kfd_ioctl_create_queue_args.queue_type. */
53#define KFD_IOC_QUEUE_TYPE_COMPUTE 0x0
54#define KFD_IOC_QUEUE_TYPE_SDMA 0x1
55#define KFD_IOC_QUEUE_TYPE_COMPUTE_AQL 0x2
56#define KFD_IOC_QUEUE_TYPE_SDMA_XGMI 0x3
57
58#define KFD_MAX_QUEUE_PERCENTAGE 100
59#define KFD_MAX_QUEUE_PRIORITY 15
60
61struct kfd_ioctl_create_queue_args {
62 __u64 ring_base_address; /* to KFD */
63 __u64 write_pointer_address; /* from KFD */
64 __u64 read_pointer_address; /* from KFD */
65 __u64 doorbell_offset; /* from KFD */
66
67 __u32 ring_size; /* to KFD */
68 __u32 gpu_id; /* to KFD */
69 __u32 queue_type; /* to KFD */
70 __u32 queue_percentage; /* to KFD */
71 __u32 queue_priority; /* to KFD */
72 __u32 queue_id; /* from KFD */
73
74 __u64 eop_buffer_address; /* to KFD */
75 __u64 eop_buffer_size; /* to KFD */
76 __u64 ctx_save_restore_address; /* to KFD */
77 __u32 ctx_save_restore_size; /* to KFD */
78 __u32 ctl_stack_size; /* to KFD */
79};
80
81struct kfd_ioctl_destroy_queue_args {
82 __u32 queue_id; /* to KFD */
83 __u32 pad;
84};
85
86struct kfd_ioctl_update_queue_args {
87 __u64 ring_base_address; /* to KFD */
88
89 __u32 queue_id; /* to KFD */
90 __u32 ring_size; /* to KFD */
91 __u32 queue_percentage; /* to KFD */
92 __u32 queue_priority; /* to KFD */
93};
94
95struct kfd_ioctl_set_cu_mask_args {
96 __u32 queue_id; /* to KFD */
97 __u32 num_cu_mask; /* to KFD */
98 __u64 cu_mask_ptr; /* to KFD */
99};
100
101struct kfd_ioctl_get_queue_wave_state_args {
102 __u64 ctl_stack_address; /* to KFD */
103 __u32 ctl_stack_used_size; /* from KFD */
104 __u32 save_area_used_size; /* from KFD */
105 __u32 queue_id; /* to KFD */
106 __u32 pad;
107};
108
109struct kfd_ioctl_get_available_memory_args {
110 __u64 available; /* from KFD */
111 __u32 gpu_id; /* to KFD */
112 __u32 pad;
113};
114
115struct kfd_dbg_device_info_entry {
116 __u64 exception_status;
117 __u64 lds_base;
118 __u64 lds_limit;
119 __u64 scratch_base;
120 __u64 scratch_limit;
121 __u64 gpuvm_base;
122 __u64 gpuvm_limit;
123 __u32 gpu_id;
124 __u32 location_id;
125 __u32 vendor_id;
126 __u32 device_id;
127 __u32 revision_id;
128 __u32 subsystem_vendor_id;
129 __u32 subsystem_device_id;
130 __u32 fw_version;
131 __u32 gfx_target_version;
132 __u32 simd_count;
133 __u32 max_waves_per_simd;
134 __u32 array_count;
135 __u32 simd_arrays_per_engine;
136 __u32 num_xcc;
137 __u32 capability;
138 __u32 debug_prop;
139};
140
141/* For kfd_ioctl_set_memory_policy_args.default_policy and alternate_policy */
142#define KFD_IOC_CACHE_POLICY_COHERENT 0
143#define KFD_IOC_CACHE_POLICY_NONCOHERENT 1
144
145struct kfd_ioctl_set_memory_policy_args {
146 __u64 alternate_aperture_base; /* to KFD */
147 __u64 alternate_aperture_size; /* to KFD */
148
149 __u32 gpu_id; /* to KFD */
150 __u32 default_policy; /* to KFD */
151 __u32 alternate_policy; /* to KFD */
152 __u32 pad;
153};
154
155/*
156 * All counters are monotonic. They are used for profiling of compute jobs.
157 * The profiling is done by userspace.
158 *
159 * In case of GPU reset, the counter should not be affected.
160 */
161
162struct kfd_ioctl_get_clock_counters_args {
163 __u64 gpu_clock_counter; /* from KFD */
164 __u64 cpu_clock_counter; /* from KFD */
165 __u64 system_clock_counter; /* from KFD */
166 __u64 system_clock_freq; /* from KFD */
167
168 __u32 gpu_id; /* to KFD */
169 __u32 pad;
170};
171
172struct kfd_process_device_apertures {
173 __u64 lds_base; /* from KFD */
174 __u64 lds_limit; /* from KFD */
175 __u64 scratch_base; /* from KFD */
176 __u64 scratch_limit; /* from KFD */
177 __u64 gpuvm_base; /* from KFD */
178 __u64 gpuvm_limit; /* from KFD */
179 __u32 gpu_id; /* from KFD */
180 __u32 pad;
181};
182
183/*
184 * AMDKFD_IOC_GET_PROCESS_APERTURES is deprecated. Use
185 * AMDKFD_IOC_GET_PROCESS_APERTURES_NEW instead, which supports an
186 * unlimited number of GPUs.
187 */
188#define NUM_OF_SUPPORTED_GPUS 7
189struct kfd_ioctl_get_process_apertures_args {
190 struct kfd_process_device_apertures
191 process_apertures[NUM_OF_SUPPORTED_GPUS];/* from KFD */
192
193 /* from KFD, should be in the range [1 - NUM_OF_SUPPORTED_GPUS] */
194 __u32 num_of_nodes;
195 __u32 pad;
196};
197
198struct kfd_ioctl_get_process_apertures_new_args {
199 /* User allocated. Pointer to struct kfd_process_device_apertures
200 * filled in by Kernel
201 */
202 __u64 kfd_process_device_apertures_ptr;
203 /* to KFD - indicates amount of memory present in
204 * kfd_process_device_apertures_ptr
205 * from KFD - Number of entries filled by KFD.
206 */
207 __u32 num_of_nodes;
208 __u32 pad;
209};
210
211#define MAX_ALLOWED_NUM_POINTS 100
212#define MAX_ALLOWED_AW_BUFF_SIZE 4096
213#define MAX_ALLOWED_WAC_BUFF_SIZE 128
214
215struct kfd_ioctl_dbg_register_args {
216 __u32 gpu_id; /* to KFD */
217 __u32 pad;
218};
219
220struct kfd_ioctl_dbg_unregister_args {
221 __u32 gpu_id; /* to KFD */
222 __u32 pad;
223};
224
225struct kfd_ioctl_dbg_address_watch_args {
226 __u64 content_ptr; /* a pointer to the actual content */
227 __u32 gpu_id; /* to KFD */
228 __u32 buf_size_in_bytes; /*including gpu_id and buf_size */
229};
230
231struct kfd_ioctl_dbg_wave_control_args {
232 __u64 content_ptr; /* a pointer to the actual content */
233 __u32 gpu_id; /* to KFD */
234 __u32 buf_size_in_bytes; /*including gpu_id and buf_size */
235};
236
237#define KFD_INVALID_FD 0xffffffff
238
239/* Matching HSA_EVENTTYPE */
240#define KFD_IOC_EVENT_SIGNAL 0
241#define KFD_IOC_EVENT_NODECHANGE 1
242#define KFD_IOC_EVENT_DEVICESTATECHANGE 2
243#define KFD_IOC_EVENT_HW_EXCEPTION 3
244#define KFD_IOC_EVENT_SYSTEM_EVENT 4
245#define KFD_IOC_EVENT_DEBUG_EVENT 5
246#define KFD_IOC_EVENT_PROFILE_EVENT 6
247#define KFD_IOC_EVENT_QUEUE_EVENT 7
248#define KFD_IOC_EVENT_MEMORY 8
249
250#define KFD_IOC_WAIT_RESULT_COMPLETE 0
251#define KFD_IOC_WAIT_RESULT_TIMEOUT 1
252#define KFD_IOC_WAIT_RESULT_FAIL 2
253
254#define KFD_SIGNAL_EVENT_LIMIT 4096
255
256/* For kfd_event_data.hw_exception_data.reset_type. */
257#define KFD_HW_EXCEPTION_WHOLE_GPU_RESET 0
258#define KFD_HW_EXCEPTION_PER_ENGINE_RESET 1
259
260/* For kfd_event_data.hw_exception_data.reset_cause. */
261#define KFD_HW_EXCEPTION_GPU_HANG 0
262#define KFD_HW_EXCEPTION_ECC 1
263
264/* For kfd_hsa_memory_exception_data.ErrorType */
265#define KFD_MEM_ERR_NO_RAS 0
266#define KFD_MEM_ERR_SRAM_ECC 1
267#define KFD_MEM_ERR_POISON_CONSUMED 2
268#define KFD_MEM_ERR_GPU_HANG 3
269
270struct kfd_ioctl_create_event_args {
271 __u64 event_page_offset; /* from KFD */
272 __u32 event_trigger_data; /* from KFD - signal events only */
273 __u32 event_type; /* to KFD */
274 __u32 auto_reset; /* to KFD */
275 __u32 node_id; /* to KFD - only valid for certain
276 event types */
277 __u32 event_id; /* from KFD */
278 __u32 event_slot_index; /* from KFD */
279};
280
281struct kfd_ioctl_destroy_event_args {
282 __u32 event_id; /* to KFD */
283 __u32 pad;
284};
285
286struct kfd_ioctl_set_event_args {
287 __u32 event_id; /* to KFD */
288 __u32 pad;
289};
290
291struct kfd_ioctl_reset_event_args {
292 __u32 event_id; /* to KFD */
293 __u32 pad;
294};
295
296struct kfd_memory_exception_failure {
297 __u32 NotPresent; /* Page not present or supervisor privilege */
298 __u32 ReadOnly; /* Write access to a read-only page */
299 __u32 NoExecute; /* Execute access to a page marked NX */
300 __u32 imprecise; /* Can't determine the exact fault address */
301};
302
303/* memory exception data */
304struct kfd_hsa_memory_exception_data {
305 struct kfd_memory_exception_failure failure;
306 __u64 va;
307 __u32 gpu_id;
308 __u32 ErrorType; /* 0 = no RAS error,
309 * 1 = ECC_SRAM,
310 * 2 = Link_SYNFLOOD (poison),
311 * 3 = GPU hang (not attributable to a specific cause),
312 * other values reserved
313 */
314};
315
316/* hw exception data */
317struct kfd_hsa_hw_exception_data {
318 __u32 reset_type;
319 __u32 reset_cause;
320 __u32 memory_lost;
321 __u32 gpu_id;
322};
323
324/* hsa signal event data */
325struct kfd_hsa_signal_event_data {
326 __u64 last_event_age; /* to and from KFD */
327};
328
329/* Event data */
330struct kfd_event_data {
331 union {
332 /* From KFD */
333 struct kfd_hsa_memory_exception_data memory_exception_data;
334 struct kfd_hsa_hw_exception_data hw_exception_data;
335 /* To and From KFD */
336 struct kfd_hsa_signal_event_data signal_event_data;
337 };
338 __u64 kfd_event_data_ext; /* pointer to an extension structure
339 for future exception types */
340 __u32 event_id; /* to KFD */
341 __u32 pad;
342};
343
344struct kfd_ioctl_wait_events_args {
345 __u64 events_ptr; /* pointed to struct
346 kfd_event_data array, to KFD */
347 __u32 num_events; /* to KFD */
348 __u32 wait_for_all; /* to KFD */
349 __u32 timeout; /* to KFD */
350 __u32 wait_result; /* from KFD */
351};
352
353struct kfd_ioctl_set_scratch_backing_va_args {
354 __u64 va_addr; /* to KFD */
355 __u32 gpu_id; /* to KFD */
356 __u32 pad;
357};
358
359struct kfd_ioctl_get_tile_config_args {
360 /* to KFD: pointer to tile array */
361 __u64 tile_config_ptr;
362 /* to KFD: pointer to macro tile array */
363 __u64 macro_tile_config_ptr;
364 /* to KFD: array size allocated by user mode
365 * from KFD: array size filled by kernel
366 */
367 __u32 num_tile_configs;
368 /* to KFD: array size allocated by user mode
369 * from KFD: array size filled by kernel
370 */
371 __u32 num_macro_tile_configs;
372
373 __u32 gpu_id; /* to KFD */
374 __u32 gb_addr_config; /* from KFD */
375 __u32 num_banks; /* from KFD */
376 __u32 num_ranks; /* from KFD */
377 /* struct size can be extended later if needed
378 * without breaking ABI compatibility
379 */
380};
381
382struct kfd_ioctl_set_trap_handler_args {
383 __u64 tba_addr; /* to KFD */
384 __u64 tma_addr; /* to KFD */
385 __u32 gpu_id; /* to KFD */
386 __u32 pad;
387};
388
389struct kfd_ioctl_acquire_vm_args {
390 __u32 drm_fd; /* to KFD */
391 __u32 gpu_id; /* to KFD */
392};
393
394/* Allocation flags: memory types */
395#define KFD_IOC_ALLOC_MEM_FLAGS_VRAM (1 << 0)
396#define KFD_IOC_ALLOC_MEM_FLAGS_GTT (1 << 1)
397#define KFD_IOC_ALLOC_MEM_FLAGS_USERPTR (1 << 2)
398#define KFD_IOC_ALLOC_MEM_FLAGS_DOORBELL (1 << 3)
399#define KFD_IOC_ALLOC_MEM_FLAGS_MMIO_REMAP (1 << 4)
400/* Allocation flags: attributes/access options */
401#define KFD_IOC_ALLOC_MEM_FLAGS_WRITABLE (1 << 31)
402#define KFD_IOC_ALLOC_MEM_FLAGS_EXECUTABLE (1 << 30)
403#define KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC (1 << 29)
404#define KFD_IOC_ALLOC_MEM_FLAGS_NO_SUBSTITUTE (1 << 28)
405#define KFD_IOC_ALLOC_MEM_FLAGS_AQL_QUEUE_MEM (1 << 27)
406#define KFD_IOC_ALLOC_MEM_FLAGS_COHERENT (1 << 26)
407#define KFD_IOC_ALLOC_MEM_FLAGS_UNCACHED (1 << 25)
408#define KFD_IOC_ALLOC_MEM_FLAGS_EXT_COHERENT (1 << 24)
409
410/* Allocate memory for later SVM (shared virtual memory) mapping.
411 *
412 * @va_addr: virtual address of the memory to be allocated
413 * all later mappings on all GPUs will use this address
414 * @size: size in bytes
415 * @handle: buffer handle returned to user mode, used to refer to
416 * this allocation for mapping, unmapping and freeing
417 * @mmap_offset: for CPU-mapping the allocation by mmapping a render node
418 * for userptrs this is overloaded to specify the CPU address
419 * @gpu_id: device identifier
420 * @flags: memory type and attributes. See KFD_IOC_ALLOC_MEM_FLAGS above
421 */
422struct kfd_ioctl_alloc_memory_of_gpu_args {
423 __u64 va_addr; /* to KFD */
424 __u64 size; /* to KFD */
425 __u64 handle; /* from KFD */
426 __u64 mmap_offset; /* to KFD (userptr), from KFD (mmap offset) */
427 __u32 gpu_id; /* to KFD */
428 __u32 flags;
429};
430
431/* Free memory allocated with kfd_ioctl_alloc_memory_of_gpu
432 *
433 * @handle: memory handle returned by alloc
434 */
435struct kfd_ioctl_free_memory_of_gpu_args {
436 __u64 handle; /* to KFD */
437};
438
439/* Map memory to one or more GPUs
440 *
441 * @handle: memory handle returned by alloc
442 * @device_ids_array_ptr: array of gpu_ids (__u32 per device)
443 * @n_devices: number of devices in the array
444 * @n_success: number of devices mapped successfully
445 *
446 * @n_success returns information to the caller how many devices from
447 * the start of the array have mapped the buffer successfully. It can
448 * be passed into a subsequent retry call to skip those devices. For
449 * the first call the caller should initialize it to 0.
450 *
451 * If the ioctl completes with return code 0 (success), n_success ==
452 * n_devices.
453 */
454struct kfd_ioctl_map_memory_to_gpu_args {
455 __u64 handle; /* to KFD */
456 __u64 device_ids_array_ptr; /* to KFD */
457 __u32 n_devices; /* to KFD */
458 __u32 n_success; /* to/from KFD */
459};
460
461/* Unmap memory from one or more GPUs
462 *
463 * same arguments as for mapping
464 */
465struct kfd_ioctl_unmap_memory_from_gpu_args {
466 __u64 handle; /* to KFD */
467 __u64 device_ids_array_ptr; /* to KFD */
468 __u32 n_devices; /* to KFD */
469 __u32 n_success; /* to/from KFD */
470};
471
472/* Allocate GWS for specific queue
473 *
474 * @queue_id: queue's id that GWS is allocated for
475 * @num_gws: how many GWS to allocate
476 * @first_gws: index of the first GWS allocated.
477 * only support contiguous GWS allocation
478 */
479struct kfd_ioctl_alloc_queue_gws_args {
480 __u32 queue_id; /* to KFD */
481 __u32 num_gws; /* to KFD */
482 __u32 first_gws; /* from KFD */
483 __u32 pad;
484};
485
486struct kfd_ioctl_get_dmabuf_info_args {
487 __u64 size; /* from KFD */
488 __u64 metadata_ptr; /* to KFD */
489 __u32 metadata_size; /* to KFD (space allocated by user)
490 * from KFD (actual metadata size)
491 */
492 __u32 gpu_id; /* from KFD */
493 __u32 flags; /* from KFD (KFD_IOC_ALLOC_MEM_FLAGS) */
494 __u32 dmabuf_fd; /* to KFD */
495};
496
497struct kfd_ioctl_import_dmabuf_args {
498 __u64 va_addr; /* to KFD */
499 __u64 handle; /* from KFD */
500 __u32 gpu_id; /* to KFD */
501 __u32 dmabuf_fd; /* to KFD */
502};
503
504struct kfd_ioctl_export_dmabuf_args {
505 __u64 handle; /* to KFD */
506 __u32 flags; /* to KFD */
507 __u32 dmabuf_fd; /* from KFD */
508};
509
510/*
511 * KFD SMI(System Management Interface) events
512 */
513enum kfd_smi_event {
514 KFD_SMI_EVENT_NONE = 0, /* not used */
515 KFD_SMI_EVENT_VMFAULT = 1, /* event start counting at 1 */
516 KFD_SMI_EVENT_THERMAL_THROTTLE = 2,
517 KFD_SMI_EVENT_GPU_PRE_RESET = 3,
518 KFD_SMI_EVENT_GPU_POST_RESET = 4,
519 KFD_SMI_EVENT_MIGRATE_START = 5,
520 KFD_SMI_EVENT_MIGRATE_END = 6,
521 KFD_SMI_EVENT_PAGE_FAULT_START = 7,
522 KFD_SMI_EVENT_PAGE_FAULT_END = 8,
523 KFD_SMI_EVENT_QUEUE_EVICTION = 9,
524 KFD_SMI_EVENT_QUEUE_RESTORE = 10,
525 KFD_SMI_EVENT_UNMAP_FROM_GPU = 11,
526
527 /*
528 * max event number, as a flag bit to get events from all processes,
529 * this requires super user permission, otherwise will not be able to
530 * receive event from any process. Without this flag to receive events
531 * from same process.
532 */
533 KFD_SMI_EVENT_ALL_PROCESS = 64
534};
535
536enum KFD_MIGRATE_TRIGGERS {
537 KFD_MIGRATE_TRIGGER_PREFETCH,
538 KFD_MIGRATE_TRIGGER_PAGEFAULT_GPU,
539 KFD_MIGRATE_TRIGGER_PAGEFAULT_CPU,
540 KFD_MIGRATE_TRIGGER_TTM_EVICTION
541};
542
543enum KFD_QUEUE_EVICTION_TRIGGERS {
544 KFD_QUEUE_EVICTION_TRIGGER_SVM,
545 KFD_QUEUE_EVICTION_TRIGGER_USERPTR,
546 KFD_QUEUE_EVICTION_TRIGGER_TTM,
547 KFD_QUEUE_EVICTION_TRIGGER_SUSPEND,
548 KFD_QUEUE_EVICTION_CRIU_CHECKPOINT,
549 KFD_QUEUE_EVICTION_CRIU_RESTORE
550};
551
552enum KFD_SVM_UNMAP_TRIGGERS {
553 KFD_SVM_UNMAP_TRIGGER_MMU_NOTIFY,
554 KFD_SVM_UNMAP_TRIGGER_MMU_NOTIFY_MIGRATE,
555 KFD_SVM_UNMAP_TRIGGER_UNMAP_FROM_CPU
556};
557
558#define KFD_SMI_EVENT_MASK_FROM_INDEX(i) (1ULL << ((i) - 1))
559#define KFD_SMI_EVENT_MSG_SIZE 96
560
561struct kfd_ioctl_smi_events_args {
562 __u32 gpuid; /* to KFD */
563 __u32 anon_fd; /* from KFD */
564};
565
566/**************************************************************************************************
567 * CRIU IOCTLs (Checkpoint Restore In Userspace)
568 *
569 * When checkpointing a process, the userspace application will perform:
570 * 1. PROCESS_INFO op to determine current process information. This pauses execution and evicts
571 * all the queues.
572 * 2. CHECKPOINT op to checkpoint process contents (BOs, queues, events, svm-ranges)
573 * 3. UNPAUSE op to un-evict all the queues
574 *
575 * When restoring a process, the CRIU userspace application will perform:
576 *
577 * 1. RESTORE op to restore process contents
578 * 2. RESUME op to start the process
579 *
580 * Note: Queues are forced into an evicted state after a successful PROCESS_INFO. User
581 * application needs to perform an UNPAUSE operation after calling PROCESS_INFO.
582 */
583
584enum kfd_criu_op {
585 KFD_CRIU_OP_PROCESS_INFO,
586 KFD_CRIU_OP_CHECKPOINT,
587 KFD_CRIU_OP_UNPAUSE,
588 KFD_CRIU_OP_RESTORE,
589 KFD_CRIU_OP_RESUME,
590};
591
592/**
593 * kfd_ioctl_criu_args - Arguments perform CRIU operation
594 * @devices: [in/out] User pointer to memory location for devices information.
595 * This is an array of type kfd_criu_device_bucket.
596 * @bos: [in/out] User pointer to memory location for BOs information
597 * This is an array of type kfd_criu_bo_bucket.
598 * @priv_data: [in/out] User pointer to memory location for private data
599 * @priv_data_size: [in/out] Size of priv_data in bytes
600 * @num_devices: [in/out] Number of GPUs used by process. Size of @devices array.
601 * @num_bos [in/out] Number of BOs used by process. Size of @bos array.
602 * @num_objects: [in/out] Number of objects used by process. Objects are opaque to
603 * user application.
604 * @pid: [in/out] PID of the process being checkpointed
605 * @op [in] Type of operation (kfd_criu_op)
606 *
607 * Return: 0 on success, -errno on failure
608 */
609struct kfd_ioctl_criu_args {
610 __u64 devices; /* Used during ops: CHECKPOINT, RESTORE */
611 __u64 bos; /* Used during ops: CHECKPOINT, RESTORE */
612 __u64 priv_data; /* Used during ops: CHECKPOINT, RESTORE */
613 __u64 priv_data_size; /* Used during ops: PROCESS_INFO, RESTORE */
614 __u32 num_devices; /* Used during ops: PROCESS_INFO, RESTORE */
615 __u32 num_bos; /* Used during ops: PROCESS_INFO, RESTORE */
616 __u32 num_objects; /* Used during ops: PROCESS_INFO, RESTORE */
617 __u32 pid; /* Used during ops: PROCESS_INFO, RESUME */
618 __u32 op;
619};
620
621struct kfd_criu_device_bucket {
622 __u32 user_gpu_id;
623 __u32 actual_gpu_id;
624 __u32 drm_fd;
625 __u32 pad;
626};
627
628struct kfd_criu_bo_bucket {
629 __u64 addr;
630 __u64 size;
631 __u64 offset;
632 __u64 restored_offset; /* During restore, updated offset for BO */
633 __u32 gpu_id; /* This is the user_gpu_id */
634 __u32 alloc_flags;
635 __u32 dmabuf_fd;
636 __u32 pad;
637};
638
639/* CRIU IOCTLs - END */
640/**************************************************************************************************/
641
642/* Register offset inside the remapped mmio page
643 */
644enum kfd_mmio_remap {
645 KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL = 0,
646 KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL = 4,
647};
648
649/* Guarantee host access to memory */
650#define KFD_IOCTL_SVM_FLAG_HOST_ACCESS 0x00000001
651/* Fine grained coherency between all devices with access */
652#define KFD_IOCTL_SVM_FLAG_COHERENT 0x00000002
653/* Use any GPU in same hive as preferred device */
654#define KFD_IOCTL_SVM_FLAG_HIVE_LOCAL 0x00000004
655/* GPUs only read, allows replication */
656#define KFD_IOCTL_SVM_FLAG_GPU_RO 0x00000008
657/* Allow execution on GPU */
658#define KFD_IOCTL_SVM_FLAG_GPU_EXEC 0x00000010
659/* GPUs mostly read, may allow similar optimizations as RO, but writes fault */
660#define KFD_IOCTL_SVM_FLAG_GPU_READ_MOSTLY 0x00000020
661/* Keep GPU memory mapping always valid as if XNACK is disable */
662#define KFD_IOCTL_SVM_FLAG_GPU_ALWAYS_MAPPED 0x00000040
663/* Fine grained coherency between all devices using device-scope atomics */
664#define KFD_IOCTL_SVM_FLAG_EXT_COHERENT 0x00000080
665
666/**
667 * kfd_ioctl_svm_op - SVM ioctl operations
668 *
669 * @KFD_IOCTL_SVM_OP_SET_ATTR: Modify one or more attributes
670 * @KFD_IOCTL_SVM_OP_GET_ATTR: Query one or more attributes
671 */
672enum kfd_ioctl_svm_op {
673 KFD_IOCTL_SVM_OP_SET_ATTR,
674 KFD_IOCTL_SVM_OP_GET_ATTR
675};
676
677/** kfd_ioctl_svm_location - Enum for preferred and prefetch locations
678 *
679 * GPU IDs are used to specify GPUs as preferred and prefetch locations.
680 * Below definitions are used for system memory or for leaving the preferred
681 * location unspecified.
682 */
683enum kfd_ioctl_svm_location {
684 KFD_IOCTL_SVM_LOCATION_SYSMEM = 0,
685 KFD_IOCTL_SVM_LOCATION_UNDEFINED = 0xffffffff
686};
687
688/**
689 * kfd_ioctl_svm_attr_type - SVM attribute types
690 *
691 * @KFD_IOCTL_SVM_ATTR_PREFERRED_LOC: gpuid of the preferred location, 0 for
692 * system memory
693 * @KFD_IOCTL_SVM_ATTR_PREFETCH_LOC: gpuid of the prefetch location, 0 for
694 * system memory. Setting this triggers an
695 * immediate prefetch (migration).
696 * @KFD_IOCTL_SVM_ATTR_ACCESS:
697 * @KFD_IOCTL_SVM_ATTR_ACCESS_IN_PLACE:
698 * @KFD_IOCTL_SVM_ATTR_NO_ACCESS: specify memory access for the gpuid given
699 * by the attribute value
700 * @KFD_IOCTL_SVM_ATTR_SET_FLAGS: bitmask of flags to set (see
701 * KFD_IOCTL_SVM_FLAG_...)
702 * @KFD_IOCTL_SVM_ATTR_CLR_FLAGS: bitmask of flags to clear
703 * @KFD_IOCTL_SVM_ATTR_GRANULARITY: migration granularity
704 * (log2 num pages)
705 */
706enum kfd_ioctl_svm_attr_type {
707 KFD_IOCTL_SVM_ATTR_PREFERRED_LOC,
708 KFD_IOCTL_SVM_ATTR_PREFETCH_LOC,
709 KFD_IOCTL_SVM_ATTR_ACCESS,
710 KFD_IOCTL_SVM_ATTR_ACCESS_IN_PLACE,
711 KFD_IOCTL_SVM_ATTR_NO_ACCESS,
712 KFD_IOCTL_SVM_ATTR_SET_FLAGS,
713 KFD_IOCTL_SVM_ATTR_CLR_FLAGS,
714 KFD_IOCTL_SVM_ATTR_GRANULARITY
715};
716
717/**
718 * kfd_ioctl_svm_attribute - Attributes as pairs of type and value
719 *
720 * The meaning of the @value depends on the attribute type.
721 *
722 * @type: attribute type (see enum @kfd_ioctl_svm_attr_type)
723 * @value: attribute value
724 */
725struct kfd_ioctl_svm_attribute {
726 __u32 type;
727 __u32 value;
728};
729
730/**
731 * kfd_ioctl_svm_args - Arguments for SVM ioctl
732 *
733 * @op specifies the operation to perform (see enum
734 * @kfd_ioctl_svm_op). @start_addr and @size are common for all
735 * operations.
736 *
737 * A variable number of attributes can be given in @attrs.
738 * @nattr specifies the number of attributes. New attributes can be
739 * added in the future without breaking the ABI. If unknown attributes
740 * are given, the function returns -EINVAL.
741 *
742 * @KFD_IOCTL_SVM_OP_SET_ATTR sets attributes for a virtual address
743 * range. It may overlap existing virtual address ranges. If it does,
744 * the existing ranges will be split such that the attribute changes
745 * only apply to the specified address range.
746 *
747 * @KFD_IOCTL_SVM_OP_GET_ATTR returns the intersection of attributes
748 * over all memory in the given range and returns the result as the
749 * attribute value. If different pages have different preferred or
750 * prefetch locations, 0xffffffff will be returned for
751 * @KFD_IOCTL_SVM_ATTR_PREFERRED_LOC or
752 * @KFD_IOCTL_SVM_ATTR_PREFETCH_LOC resepctively. For
753 * @KFD_IOCTL_SVM_ATTR_SET_FLAGS, flags of all pages will be
754 * aggregated by bitwise AND. That means, a flag will be set in the
755 * output, if that flag is set for all pages in the range. For
756 * @KFD_IOCTL_SVM_ATTR_CLR_FLAGS, flags of all pages will be
757 * aggregated by bitwise NOR. That means, a flag will be set in the
758 * output, if that flag is clear for all pages in the range.
759 * The minimum migration granularity throughout the range will be
760 * returned for @KFD_IOCTL_SVM_ATTR_GRANULARITY.
761 *
762 * Querying of accessibility attributes works by initializing the
763 * attribute type to @KFD_IOCTL_SVM_ATTR_ACCESS and the value to the
764 * GPUID being queried. Multiple attributes can be given to allow
765 * querying multiple GPUIDs. The ioctl function overwrites the
766 * attribute type to indicate the access for the specified GPU.
767 */
768struct kfd_ioctl_svm_args {
769 __u64 start_addr;
770 __u64 size;
771 __u32 op;
772 __u32 nattr;
773 /* Variable length array of attributes */
774 struct kfd_ioctl_svm_attribute attrs[];
775};
776
777/**
778 * kfd_ioctl_set_xnack_mode_args - Arguments for set_xnack_mode
779 *
780 * @xnack_enabled: [in/out] Whether to enable XNACK mode for this process
781 *
782 * @xnack_enabled indicates whether recoverable page faults should be
783 * enabled for the current process. 0 means disabled, positive means
784 * enabled, negative means leave unchanged. If enabled, virtual address
785 * translations on GFXv9 and later AMD GPUs can return XNACK and retry
786 * the access until a valid PTE is available. This is used to implement
787 * device page faults.
788 *
789 * On output, @xnack_enabled returns the (new) current mode (0 or
790 * positive). Therefore, a negative input value can be used to query
791 * the current mode without changing it.
792 *
793 * The XNACK mode fundamentally changes the way SVM managed memory works
794 * in the driver, with subtle effects on application performance and
795 * functionality.
796 *
797 * Enabling XNACK mode requires shader programs to be compiled
798 * differently. Furthermore, not all GPUs support changing the mode
799 * per-process. Therefore changing the mode is only allowed while no
800 * user mode queues exist in the process. This ensure that no shader
801 * code is running that may be compiled for the wrong mode. And GPUs
802 * that cannot change to the requested mode will prevent the XNACK
803 * mode from occurring. All GPUs used by the process must be in the
804 * same XNACK mode.
805 *
806 * GFXv8 or older GPUs do not support 48 bit virtual addresses or SVM.
807 * Therefore those GPUs are not considered for the XNACK mode switch.
808 *
809 * Return: 0 on success, -errno on failure
810 */
811struct kfd_ioctl_set_xnack_mode_args {
812 __s32 xnack_enabled;
813};
814
815/* Wave launch override modes */
816enum kfd_dbg_trap_override_mode {
817 KFD_DBG_TRAP_OVERRIDE_OR = 0,
818 KFD_DBG_TRAP_OVERRIDE_REPLACE = 1
819};
820
821/* Wave launch overrides */
822enum kfd_dbg_trap_mask {
823 KFD_DBG_TRAP_MASK_FP_INVALID = 1,
824 KFD_DBG_TRAP_MASK_FP_INPUT_DENORMAL = 2,
825 KFD_DBG_TRAP_MASK_FP_DIVIDE_BY_ZERO = 4,
826 KFD_DBG_TRAP_MASK_FP_OVERFLOW = 8,
827 KFD_DBG_TRAP_MASK_FP_UNDERFLOW = 16,
828 KFD_DBG_TRAP_MASK_FP_INEXACT = 32,
829 KFD_DBG_TRAP_MASK_INT_DIVIDE_BY_ZERO = 64,
830 KFD_DBG_TRAP_MASK_DBG_ADDRESS_WATCH = 128,
831 KFD_DBG_TRAP_MASK_DBG_MEMORY_VIOLATION = 256,
832 KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_START = (1 << 30),
833 KFD_DBG_TRAP_MASK_TRAP_ON_WAVE_END = (1 << 31)
834};
835
836/* Wave launch modes */
837enum kfd_dbg_trap_wave_launch_mode {
838 KFD_DBG_TRAP_WAVE_LAUNCH_MODE_NORMAL = 0,
839 KFD_DBG_TRAP_WAVE_LAUNCH_MODE_HALT = 1,
840 KFD_DBG_TRAP_WAVE_LAUNCH_MODE_DEBUG = 3
841};
842
843/* Address watch modes */
844enum kfd_dbg_trap_address_watch_mode {
845 KFD_DBG_TRAP_ADDRESS_WATCH_MODE_READ = 0,
846 KFD_DBG_TRAP_ADDRESS_WATCH_MODE_NONREAD = 1,
847 KFD_DBG_TRAP_ADDRESS_WATCH_MODE_ATOMIC = 2,
848 KFD_DBG_TRAP_ADDRESS_WATCH_MODE_ALL = 3
849};
850
851/* Additional wave settings */
852enum kfd_dbg_trap_flags {
853 KFD_DBG_TRAP_FLAG_SINGLE_MEM_OP = 1,
854};
855
856/* Trap exceptions */
857enum kfd_dbg_trap_exception_code {
858 EC_NONE = 0,
859 /* per queue */
860 EC_QUEUE_WAVE_ABORT = 1,
861 EC_QUEUE_WAVE_TRAP = 2,
862 EC_QUEUE_WAVE_MATH_ERROR = 3,
863 EC_QUEUE_WAVE_ILLEGAL_INSTRUCTION = 4,
864 EC_QUEUE_WAVE_MEMORY_VIOLATION = 5,
865 EC_QUEUE_WAVE_APERTURE_VIOLATION = 6,
866 EC_QUEUE_PACKET_DISPATCH_DIM_INVALID = 16,
867 EC_QUEUE_PACKET_DISPATCH_GROUP_SEGMENT_SIZE_INVALID = 17,
868 EC_QUEUE_PACKET_DISPATCH_CODE_INVALID = 18,
869 EC_QUEUE_PACKET_RESERVED = 19,
870 EC_QUEUE_PACKET_UNSUPPORTED = 20,
871 EC_QUEUE_PACKET_DISPATCH_WORK_GROUP_SIZE_INVALID = 21,
872 EC_QUEUE_PACKET_DISPATCH_REGISTER_INVALID = 22,
873 EC_QUEUE_PACKET_VENDOR_UNSUPPORTED = 23,
874 EC_QUEUE_PREEMPTION_ERROR = 30,
875 EC_QUEUE_NEW = 31,
876 /* per device */
877 EC_DEVICE_QUEUE_DELETE = 32,
878 EC_DEVICE_MEMORY_VIOLATION = 33,
879 EC_DEVICE_RAS_ERROR = 34,
880 EC_DEVICE_FATAL_HALT = 35,
881 EC_DEVICE_NEW = 36,
882 /* per process */
883 EC_PROCESS_RUNTIME = 48,
884 EC_PROCESS_DEVICE_REMOVE = 49,
885 EC_MAX
886};
887
888/* Mask generated by ecode in kfd_dbg_trap_exception_code */
889#define KFD_EC_MASK(ecode) (1ULL << (ecode - 1))
890
891/* Masks for exception code type checks below */
892#define KFD_EC_MASK_QUEUE (KFD_EC_MASK(EC_QUEUE_WAVE_ABORT) | \
893 KFD_EC_MASK(EC_QUEUE_WAVE_TRAP) | \
894 KFD_EC_MASK(EC_QUEUE_WAVE_MATH_ERROR) | \
895 KFD_EC_MASK(EC_QUEUE_WAVE_ILLEGAL_INSTRUCTION) | \
896 KFD_EC_MASK(EC_QUEUE_WAVE_MEMORY_VIOLATION) | \
897 KFD_EC_MASK(EC_QUEUE_WAVE_APERTURE_VIOLATION) | \
898 KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_DIM_INVALID) | \
899 KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_GROUP_SEGMENT_SIZE_INVALID) | \
900 KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_CODE_INVALID) | \
901 KFD_EC_MASK(EC_QUEUE_PACKET_RESERVED) | \
902 KFD_EC_MASK(EC_QUEUE_PACKET_UNSUPPORTED) | \
903 KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_WORK_GROUP_SIZE_INVALID) | \
904 KFD_EC_MASK(EC_QUEUE_PACKET_DISPATCH_REGISTER_INVALID) | \
905 KFD_EC_MASK(EC_QUEUE_PACKET_VENDOR_UNSUPPORTED) | \
906 KFD_EC_MASK(EC_QUEUE_PREEMPTION_ERROR) | \
907 KFD_EC_MASK(EC_QUEUE_NEW))
908#define KFD_EC_MASK_DEVICE (KFD_EC_MASK(EC_DEVICE_QUEUE_DELETE) | \
909 KFD_EC_MASK(EC_DEVICE_RAS_ERROR) | \
910 KFD_EC_MASK(EC_DEVICE_FATAL_HALT) | \
911 KFD_EC_MASK(EC_DEVICE_MEMORY_VIOLATION) | \
912 KFD_EC_MASK(EC_DEVICE_NEW))
913#define KFD_EC_MASK_PROCESS (KFD_EC_MASK(EC_PROCESS_RUNTIME) | \
914 KFD_EC_MASK(EC_PROCESS_DEVICE_REMOVE))
915
916/* Checks for exception code types for KFD search */
917#define KFD_DBG_EC_TYPE_IS_QUEUE(ecode) \
918 (!!(KFD_EC_MASK(ecode) & KFD_EC_MASK_QUEUE))
919#define KFD_DBG_EC_TYPE_IS_DEVICE(ecode) \
920 (!!(KFD_EC_MASK(ecode) & KFD_EC_MASK_DEVICE))
921#define KFD_DBG_EC_TYPE_IS_PROCESS(ecode) \
922 (!!(KFD_EC_MASK(ecode) & KFD_EC_MASK_PROCESS))
923
924
925/* Runtime enable states */
926enum kfd_dbg_runtime_state {
927 DEBUG_RUNTIME_STATE_DISABLED = 0,
928 DEBUG_RUNTIME_STATE_ENABLED = 1,
929 DEBUG_RUNTIME_STATE_ENABLED_BUSY = 2,
930 DEBUG_RUNTIME_STATE_ENABLED_ERROR = 3
931};
932
933/* Runtime enable status */
934struct kfd_runtime_info {
935 __u64 r_debug;
936 __u32 runtime_state;
937 __u32 ttmp_setup;
938};
939
940/* Enable modes for runtime enable */
941#define KFD_RUNTIME_ENABLE_MODE_ENABLE_MASK 1
942#define KFD_RUNTIME_ENABLE_MODE_TTMP_SAVE_MASK 2
943
944/**
945 * kfd_ioctl_runtime_enable_args - Arguments for runtime enable
946 *
947 * Coordinates debug exception signalling and debug device enablement with runtime.
948 *
949 * @r_debug - pointer to user struct for sharing information between ROCr and the debuggger
950 * @mode_mask - mask to set mode
951 * KFD_RUNTIME_ENABLE_MODE_ENABLE_MASK - enable runtime for debugging, otherwise disable
952 * KFD_RUNTIME_ENABLE_MODE_TTMP_SAVE_MASK - enable trap temporary setup (ignore on disable)
953 * @capabilities_mask - mask to notify runtime on what KFD supports
954 *
955 * Return - 0 on SUCCESS.
956 * - EBUSY if runtime enable call already pending.
957 * - EEXIST if user queues already active prior to call.
958 * If process is debug enabled, runtime enable will enable debug devices and
959 * wait for debugger process to send runtime exception EC_PROCESS_RUNTIME
960 * to unblock - see kfd_ioctl_dbg_trap_args.
961 *
962 */
963struct kfd_ioctl_runtime_enable_args {
964 __u64 r_debug;
965 __u32 mode_mask;
966 __u32 capabilities_mask;
967};
968
969/* Queue information */
970struct kfd_queue_snapshot_entry {
971 __u64 exception_status;
972 __u64 ring_base_address;
973 __u64 write_pointer_address;
974 __u64 read_pointer_address;
975 __u64 ctx_save_restore_address;
976 __u32 queue_id;
977 __u32 gpu_id;
978 __u32 ring_size;
979 __u32 queue_type;
980 __u32 ctx_save_restore_area_size;
981 __u32 reserved;
982};
983
984/* Queue status return for suspend/resume */
985#define KFD_DBG_QUEUE_ERROR_BIT 30
986#define KFD_DBG_QUEUE_INVALID_BIT 31
987#define KFD_DBG_QUEUE_ERROR_MASK (1 << KFD_DBG_QUEUE_ERROR_BIT)
988#define KFD_DBG_QUEUE_INVALID_MASK (1 << KFD_DBG_QUEUE_INVALID_BIT)
989
990/* Context save area header information */
991struct kfd_context_save_area_header {
992 struct {
993 __u32 control_stack_offset;
994 __u32 control_stack_size;
995 __u32 wave_state_offset;
996 __u32 wave_state_size;
997 } wave_state;
998 __u32 debug_offset;
999 __u32 debug_size;
1000 __u64 err_payload_addr;
1001 __u32 err_event_id;
1002 __u32 reserved1;
1003};
1004
1005/*
1006 * Debug operations
1007 *
1008 * For specifics on usage and return values, see documentation per operation
1009 * below. Otherwise, generic error returns apply:
1010 * - ESRCH if the process to debug does not exist.
1011 *
1012 * - EINVAL (with KFD_IOC_DBG_TRAP_ENABLE exempt) if operation
1013 * KFD_IOC_DBG_TRAP_ENABLE has not succeeded prior.
1014 * Also returns this error if GPU hardware scheduling is not supported.
1015 *
1016 * - EPERM (with KFD_IOC_DBG_TRAP_DISABLE exempt) if target process is not
1017 * PTRACE_ATTACHED. KFD_IOC_DBG_TRAP_DISABLE is exempt to allow
1018 * clean up of debug mode as long as process is debug enabled.
1019 *
1020 * - EACCES if any DBG_HW_OP (debug hardware operation) is requested when
1021 * AMDKFD_IOC_RUNTIME_ENABLE has not succeeded prior.
1022 *
1023 * - ENODEV if any GPU does not support debugging on a DBG_HW_OP call.
1024 *
1025 * - Other errors may be returned when a DBG_HW_OP occurs while the GPU
1026 * is in a fatal state.
1027 *
1028 */
1029enum kfd_dbg_trap_operations {
1030 KFD_IOC_DBG_TRAP_ENABLE = 0,
1031 KFD_IOC_DBG_TRAP_DISABLE = 1,
1032 KFD_IOC_DBG_TRAP_SEND_RUNTIME_EVENT = 2,
1033 KFD_IOC_DBG_TRAP_SET_EXCEPTIONS_ENABLED = 3,
1034 KFD_IOC_DBG_TRAP_SET_WAVE_LAUNCH_OVERRIDE = 4, /* DBG_HW_OP */
1035 KFD_IOC_DBG_TRAP_SET_WAVE_LAUNCH_MODE = 5, /* DBG_HW_OP */
1036 KFD_IOC_DBG_TRAP_SUSPEND_QUEUES = 6, /* DBG_HW_OP */
1037 KFD_IOC_DBG_TRAP_RESUME_QUEUES = 7, /* DBG_HW_OP */
1038 KFD_IOC_DBG_TRAP_SET_NODE_ADDRESS_WATCH = 8, /* DBG_HW_OP */
1039 KFD_IOC_DBG_TRAP_CLEAR_NODE_ADDRESS_WATCH = 9, /* DBG_HW_OP */
1040 KFD_IOC_DBG_TRAP_SET_FLAGS = 10,
1041 KFD_IOC_DBG_TRAP_QUERY_DEBUG_EVENT = 11,
1042 KFD_IOC_DBG_TRAP_QUERY_EXCEPTION_INFO = 12,
1043 KFD_IOC_DBG_TRAP_GET_QUEUE_SNAPSHOT = 13,
1044 KFD_IOC_DBG_TRAP_GET_DEVICE_SNAPSHOT = 14
1045};
1046
1047/**
1048 * kfd_ioctl_dbg_trap_enable_args
1049 *
1050 * Arguments for KFD_IOC_DBG_TRAP_ENABLE.
1051 *
1052 * Enables debug session for target process. Call @op KFD_IOC_DBG_TRAP_DISABLE in
1053 * kfd_ioctl_dbg_trap_args to disable debug session.
1054 *
1055 * @exception_mask (IN) - exceptions to raise to the debugger
1056 * @rinfo_ptr (IN) - pointer to runtime info buffer (see kfd_runtime_info)
1057 * @rinfo_size (IN/OUT) - size of runtime info buffer in bytes
1058 * @dbg_fd (IN) - fd the KFD will nofify the debugger with of raised
1059 * exceptions set in exception_mask.
1060 *
1061 * Generic errors apply (see kfd_dbg_trap_operations).
1062 * Return - 0 on SUCCESS.
1063 * Copies KFD saved kfd_runtime_info to @rinfo_ptr on enable.
1064 * Size of kfd_runtime saved by the KFD returned to @rinfo_size.
1065 * - EBADF if KFD cannot get a reference to dbg_fd.
1066 * - EFAULT if KFD cannot copy runtime info to rinfo_ptr.
1067 * - EINVAL if target process is already debug enabled.
1068 *
1069 */
1070struct kfd_ioctl_dbg_trap_enable_args {
1071 __u64 exception_mask;
1072 __u64 rinfo_ptr;
1073 __u32 rinfo_size;
1074 __u32 dbg_fd;
1075};
1076
1077/**
1078 * kfd_ioctl_dbg_trap_send_runtime_event_args
1079 *
1080 *
1081 * Arguments for KFD_IOC_DBG_TRAP_SEND_RUNTIME_EVENT.
1082 * Raises exceptions to runtime.
1083 *
1084 * @exception_mask (IN) - exceptions to raise to runtime
1085 * @gpu_id (IN) - target device id
1086 * @queue_id (IN) - target queue id
1087 *
1088 * Generic errors apply (see kfd_dbg_trap_operations).
1089 * Return - 0 on SUCCESS.
1090 * - ENODEV if gpu_id not found.
1091 * If exception_mask contains EC_PROCESS_RUNTIME, unblocks pending
1092 * AMDKFD_IOC_RUNTIME_ENABLE call - see kfd_ioctl_runtime_enable_args.
1093 * All other exceptions are raised to runtime through err_payload_addr.
1094 * See kfd_context_save_area_header.
1095 */
1096struct kfd_ioctl_dbg_trap_send_runtime_event_args {
1097 __u64 exception_mask;
1098 __u32 gpu_id;
1099 __u32 queue_id;
1100};
1101
1102/**
1103 * kfd_ioctl_dbg_trap_set_exceptions_enabled_args
1104 *
1105 * Arguments for KFD_IOC_SET_EXCEPTIONS_ENABLED
1106 * Set new exceptions to be raised to the debugger.
1107 *
1108 * @exception_mask (IN) - new exceptions to raise the debugger
1109 *
1110 * Generic errors apply (see kfd_dbg_trap_operations).
1111 * Return - 0 on SUCCESS.
1112 */
1113struct kfd_ioctl_dbg_trap_set_exceptions_enabled_args {
1114 __u64 exception_mask;
1115};
1116
1117/**
1118 * kfd_ioctl_dbg_trap_set_wave_launch_override_args
1119 *
1120 * Arguments for KFD_IOC_DBG_TRAP_SET_WAVE_LAUNCH_OVERRIDE
1121 * Enable HW exceptions to raise trap.
1122 *
1123 * @override_mode (IN) - see kfd_dbg_trap_override_mode
1124 * @enable_mask (IN/OUT) - reference kfd_dbg_trap_mask.
1125 * IN is the override modes requested to be enabled.
1126 * OUT is referenced in Return below.
1127 * @support_request_mask (IN/OUT) - reference kfd_dbg_trap_mask.
1128 * IN is the override modes requested for support check.
1129 * OUT is referenced in Return below.
1130 *
1131 * Generic errors apply (see kfd_dbg_trap_operations).
1132 * Return - 0 on SUCCESS.
1133 * Previous enablement is returned in @enable_mask.
1134 * Actual override support is returned in @support_request_mask.
1135 * - EINVAL if override mode is not supported.
1136 * - EACCES if trap support requested is not actually supported.
1137 * i.e. enable_mask (IN) is not a subset of support_request_mask (OUT).
1138 * Otherwise it is considered a generic error (see kfd_dbg_trap_operations).
1139 */
1140struct kfd_ioctl_dbg_trap_set_wave_launch_override_args {
1141 __u32 override_mode;
1142 __u32 enable_mask;
1143 __u32 support_request_mask;
1144 __u32 pad;
1145};
1146
1147/**
1148 * kfd_ioctl_dbg_trap_set_wave_launch_mode_args
1149 *
1150 * Arguments for KFD_IOC_DBG_TRAP_SET_WAVE_LAUNCH_MODE
1151 * Set wave launch mode.
1152 *
1153 * @mode (IN) - see kfd_dbg_trap_wave_launch_mode
1154 *
1155 * Generic errors apply (see kfd_dbg_trap_operations).
1156 * Return - 0 on SUCCESS.
1157 */
1158struct kfd_ioctl_dbg_trap_set_wave_launch_mode_args {
1159 __u32 launch_mode;
1160 __u32 pad;
1161};
1162
1163/**
1164 * kfd_ioctl_dbg_trap_suspend_queues_ags
1165 *
1166 * Arguments for KFD_IOC_DBG_TRAP_SUSPEND_QUEUES
1167 * Suspend queues.
1168 *
1169 * @exception_mask (IN) - raised exceptions to clear
1170 * @queue_array_ptr (IN) - pointer to array of queue ids (u32 per queue id)
1171 * to suspend
1172 * @num_queues (IN) - number of queues to suspend in @queue_array_ptr
1173 * @grace_period (IN) - wave time allowance before preemption
1174 * per 1K GPU clock cycle unit
1175 *
1176 * Generic errors apply (see kfd_dbg_trap_operations).
1177 * Destruction of a suspended queue is blocked until the queue is
1178 * resumed. This allows the debugger to access queue information and
1179 * the its context save area without running into a race condition on
1180 * queue destruction.
1181 * Automatically copies per queue context save area header information
1182 * into the save area base
1183 * (see kfd_queue_snapshot_entry and kfd_context_save_area_header).
1184 *
1185 * Return - Number of queues suspended on SUCCESS.
1186 * . KFD_DBG_QUEUE_ERROR_MASK and KFD_DBG_QUEUE_INVALID_MASK masked
1187 * for each queue id in @queue_array_ptr array reports unsuccessful
1188 * suspend reason.
1189 * KFD_DBG_QUEUE_ERROR_MASK = HW failure.
1190 * KFD_DBG_QUEUE_INVALID_MASK = queue does not exist, is new or
1191 * is being destroyed.
1192 */
1193struct kfd_ioctl_dbg_trap_suspend_queues_args {
1194 __u64 exception_mask;
1195 __u64 queue_array_ptr;
1196 __u32 num_queues;
1197 __u32 grace_period;
1198};
1199
1200/**
1201 * kfd_ioctl_dbg_trap_resume_queues_args
1202 *
1203 * Arguments for KFD_IOC_DBG_TRAP_RESUME_QUEUES
1204 * Resume queues.
1205 *
1206 * @queue_array_ptr (IN) - pointer to array of queue ids (u32 per queue id)
1207 * to resume
1208 * @num_queues (IN) - number of queues to resume in @queue_array_ptr
1209 *
1210 * Generic errors apply (see kfd_dbg_trap_operations).
1211 * Return - Number of queues resumed on SUCCESS.
1212 * KFD_DBG_QUEUE_ERROR_MASK and KFD_DBG_QUEUE_INVALID_MASK mask
1213 * for each queue id in @queue_array_ptr array reports unsuccessful
1214 * resume reason.
1215 * KFD_DBG_QUEUE_ERROR_MASK = HW failure.
1216 * KFD_DBG_QUEUE_INVALID_MASK = queue does not exist.
1217 */
1218struct kfd_ioctl_dbg_trap_resume_queues_args {
1219 __u64 queue_array_ptr;
1220 __u32 num_queues;
1221 __u32 pad;
1222};
1223
1224/**
1225 * kfd_ioctl_dbg_trap_set_node_address_watch_args
1226 *
1227 * Arguments for KFD_IOC_DBG_TRAP_SET_NODE_ADDRESS_WATCH
1228 * Sets address watch for device.
1229 *
1230 * @address (IN) - watch address to set
1231 * @mode (IN) - see kfd_dbg_trap_address_watch_mode
1232 * @mask (IN) - watch address mask
1233 * @gpu_id (IN) - target gpu to set watch point
1234 * @id (OUT) - watch id allocated
1235 *
1236 * Generic errors apply (see kfd_dbg_trap_operations).
1237 * Return - 0 on SUCCESS.
1238 * Allocated watch ID returned to @id.
1239 * - ENODEV if gpu_id not found.
1240 * - ENOMEM if watch IDs can be allocated
1241 */
1242struct kfd_ioctl_dbg_trap_set_node_address_watch_args {
1243 __u64 address;
1244 __u32 mode;
1245 __u32 mask;
1246 __u32 gpu_id;
1247 __u32 id;
1248};
1249
1250/**
1251 * kfd_ioctl_dbg_trap_clear_node_address_watch_args
1252 *
1253 * Arguments for KFD_IOC_DBG_TRAP_CLEAR_NODE_ADDRESS_WATCH
1254 * Clear address watch for device.
1255 *
1256 * @gpu_id (IN) - target device to clear watch point
1257 * @id (IN) - allocated watch id to clear
1258 *
1259 * Generic errors apply (see kfd_dbg_trap_operations).
1260 * Return - 0 on SUCCESS.
1261 * - ENODEV if gpu_id not found.
1262 * - EINVAL if watch ID has not been allocated.
1263 */
1264struct kfd_ioctl_dbg_trap_clear_node_address_watch_args {
1265 __u32 gpu_id;
1266 __u32 id;
1267};
1268
1269/**
1270 * kfd_ioctl_dbg_trap_set_flags_args
1271 *
1272 * Arguments for KFD_IOC_DBG_TRAP_SET_FLAGS
1273 * Sets flags for wave behaviour.
1274 *
1275 * @flags (IN/OUT) - IN = flags to enable, OUT = flags previously enabled
1276 *
1277 * Generic errors apply (see kfd_dbg_trap_operations).
1278 * Return - 0 on SUCCESS.
1279 * - EACCESS if any debug device does not allow flag options.
1280 */
1281struct kfd_ioctl_dbg_trap_set_flags_args {
1282 __u32 flags;
1283 __u32 pad;
1284};
1285
1286/**
1287 * kfd_ioctl_dbg_trap_query_debug_event_args
1288 *
1289 * Arguments for KFD_IOC_DBG_TRAP_QUERY_DEBUG_EVENT
1290 *
1291 * Find one or more raised exceptions. This function can return multiple
1292 * exceptions from a single queue or a single device with one call. To find
1293 * all raised exceptions, this function must be called repeatedly until it
1294 * returns -EAGAIN. Returned exceptions can optionally be cleared by
1295 * setting the corresponding bit in the @exception_mask input parameter.
1296 * However, clearing an exception prevents retrieving further information
1297 * about it with KFD_IOC_DBG_TRAP_QUERY_EXCEPTION_INFO.
1298 *
1299 * @exception_mask (IN/OUT) - exception to clear (IN) and raised (OUT)
1300 * @gpu_id (OUT) - gpu id of exceptions raised
1301 * @queue_id (OUT) - queue id of exceptions raised
1302 *
1303 * Generic errors apply (see kfd_dbg_trap_operations).
1304 * Return - 0 on raised exception found
1305 * Raised exceptions found are returned in @exception mask
1306 * with reported source id returned in @gpu_id or @queue_id.
1307 * - EAGAIN if no raised exception has been found
1308 */
1309struct kfd_ioctl_dbg_trap_query_debug_event_args {
1310 __u64 exception_mask;
1311 __u32 gpu_id;
1312 __u32 queue_id;
1313};
1314
1315/**
1316 * kfd_ioctl_dbg_trap_query_exception_info_args
1317 *
1318 * Arguments KFD_IOC_DBG_TRAP_QUERY_EXCEPTION_INFO
1319 * Get additional info on raised exception.
1320 *
1321 * @info_ptr (IN) - pointer to exception info buffer to copy to
1322 * @info_size (IN/OUT) - exception info buffer size (bytes)
1323 * @source_id (IN) - target gpu or queue id
1324 * @exception_code (IN) - target exception
1325 * @clear_exception (IN) - clear raised @exception_code exception
1326 * (0 = false, 1 = true)
1327 *
1328 * Generic errors apply (see kfd_dbg_trap_operations).
1329 * Return - 0 on SUCCESS.
1330 * If @exception_code is EC_DEVICE_MEMORY_VIOLATION, copy @info_size(OUT)
1331 * bytes of memory exception data to @info_ptr.
1332 * If @exception_code is EC_PROCESS_RUNTIME, copy saved
1333 * kfd_runtime_info to @info_ptr.
1334 * Actual required @info_ptr size (bytes) is returned in @info_size.
1335 */
1336struct kfd_ioctl_dbg_trap_query_exception_info_args {
1337 __u64 info_ptr;
1338 __u32 info_size;
1339 __u32 source_id;
1340 __u32 exception_code;
1341 __u32 clear_exception;
1342};
1343
1344/**
1345 * kfd_ioctl_dbg_trap_get_queue_snapshot_args
1346 *
1347 * Arguments KFD_IOC_DBG_TRAP_GET_QUEUE_SNAPSHOT
1348 * Get queue information.
1349 *
1350 * @exception_mask (IN) - exceptions raised to clear
1351 * @snapshot_buf_ptr (IN) - queue snapshot entry buffer (see kfd_queue_snapshot_entry)
1352 * @num_queues (IN/OUT) - number of queue snapshot entries
1353 * The debugger specifies the size of the array allocated in @num_queues.
1354 * KFD returns the number of queues that actually existed. If this is
1355 * larger than the size specified by the debugger, KFD will not overflow
1356 * the array allocated by the debugger.
1357 *
1358 * @entry_size (IN/OUT) - size per entry in bytes
1359 * The debugger specifies sizeof(struct kfd_queue_snapshot_entry) in
1360 * @entry_size. KFD returns the number of bytes actually populated per
1361 * entry. The debugger should use the KFD_IOCTL_MINOR_VERSION to determine,
1362 * which fields in struct kfd_queue_snapshot_entry are valid. This allows
1363 * growing the ABI in a backwards compatible manner.
1364 * Note that entry_size(IN) should still be used to stride the snapshot buffer in the
1365 * event that it's larger than actual kfd_queue_snapshot_entry.
1366 *
1367 * Generic errors apply (see kfd_dbg_trap_operations).
1368 * Return - 0 on SUCCESS.
1369 * Copies @num_queues(IN) queue snapshot entries of size @entry_size(IN)
1370 * into @snapshot_buf_ptr if @num_queues(IN) > 0.
1371 * Otherwise return @num_queues(OUT) queue snapshot entries that exist.
1372 */
1373struct kfd_ioctl_dbg_trap_queue_snapshot_args {
1374 __u64 exception_mask;
1375 __u64 snapshot_buf_ptr;
1376 __u32 num_queues;
1377 __u32 entry_size;
1378};
1379
1380/**
1381 * kfd_ioctl_dbg_trap_get_device_snapshot_args
1382 *
1383 * Arguments for KFD_IOC_DBG_TRAP_GET_DEVICE_SNAPSHOT
1384 * Get device information.
1385 *
1386 * @exception_mask (IN) - exceptions raised to clear
1387 * @snapshot_buf_ptr (IN) - pointer to snapshot buffer (see kfd_dbg_device_info_entry)
1388 * @num_devices (IN/OUT) - number of debug devices to snapshot
1389 * The debugger specifies the size of the array allocated in @num_devices.
1390 * KFD returns the number of devices that actually existed. If this is
1391 * larger than the size specified by the debugger, KFD will not overflow
1392 * the array allocated by the debugger.
1393 *
1394 * @entry_size (IN/OUT) - size per entry in bytes
1395 * The debugger specifies sizeof(struct kfd_dbg_device_info_entry) in
1396 * @entry_size. KFD returns the number of bytes actually populated. The
1397 * debugger should use KFD_IOCTL_MINOR_VERSION to determine, which fields
1398 * in struct kfd_dbg_device_info_entry are valid. This allows growing the
1399 * ABI in a backwards compatible manner.
1400 * Note that entry_size(IN) should still be used to stride the snapshot buffer in the
1401 * event that it's larger than actual kfd_dbg_device_info_entry.
1402 *
1403 * Generic errors apply (see kfd_dbg_trap_operations).
1404 * Return - 0 on SUCCESS.
1405 * Copies @num_devices(IN) device snapshot entries of size @entry_size(IN)
1406 * into @snapshot_buf_ptr if @num_devices(IN) > 0.
1407 * Otherwise return @num_devices(OUT) queue snapshot entries that exist.
1408 */
1409struct kfd_ioctl_dbg_trap_device_snapshot_args {
1410 __u64 exception_mask;
1411 __u64 snapshot_buf_ptr;
1412 __u32 num_devices;
1413 __u32 entry_size;
1414};
1415
1416/**
1417 * kfd_ioctl_dbg_trap_args
1418 *
1419 * Arguments to debug target process.
1420 *
1421 * @pid - target process to debug
1422 * @op - debug operation (see kfd_dbg_trap_operations)
1423 *
1424 * @op determines which union struct args to use.
1425 * Refer to kern docs for each kfd_ioctl_dbg_trap_*_args struct.
1426 */
1427struct kfd_ioctl_dbg_trap_args {
1428 __u32 pid;
1429 __u32 op;
1430
1431 union {
1432 struct kfd_ioctl_dbg_trap_enable_args enable;
1433 struct kfd_ioctl_dbg_trap_send_runtime_event_args send_runtime_event;
1434 struct kfd_ioctl_dbg_trap_set_exceptions_enabled_args set_exceptions_enabled;
1435 struct kfd_ioctl_dbg_trap_set_wave_launch_override_args launch_override;
1436 struct kfd_ioctl_dbg_trap_set_wave_launch_mode_args launch_mode;
1437 struct kfd_ioctl_dbg_trap_suspend_queues_args suspend_queues;
1438 struct kfd_ioctl_dbg_trap_resume_queues_args resume_queues;
1439 struct kfd_ioctl_dbg_trap_set_node_address_watch_args set_node_address_watch;
1440 struct kfd_ioctl_dbg_trap_clear_node_address_watch_args clear_node_address_watch;
1441 struct kfd_ioctl_dbg_trap_set_flags_args set_flags;
1442 struct kfd_ioctl_dbg_trap_query_debug_event_args query_debug_event;
1443 struct kfd_ioctl_dbg_trap_query_exception_info_args query_exception_info;
1444 struct kfd_ioctl_dbg_trap_queue_snapshot_args queue_snapshot;
1445 struct kfd_ioctl_dbg_trap_device_snapshot_args device_snapshot;
1446 };
1447};
1448
1449#define AMDKFD_IOCTL_BASE 'K'
1450#define AMDKFD_IO(nr) _IO(AMDKFD_IOCTL_BASE, nr)
1451#define AMDKFD_IOR(nr, type) _IOR(AMDKFD_IOCTL_BASE, nr, type)
1452#define AMDKFD_IOW(nr, type) _IOW(AMDKFD_IOCTL_BASE, nr, type)
1453#define AMDKFD_IOWR(nr, type) _IOWR(AMDKFD_IOCTL_BASE, nr, type)
1454
1455#define AMDKFD_IOC_GET_VERSION \
1456 AMDKFD_IOR(0x01, struct kfd_ioctl_get_version_args)
1457
1458#define AMDKFD_IOC_CREATE_QUEUE \
1459 AMDKFD_IOWR(0x02, struct kfd_ioctl_create_queue_args)
1460
1461#define AMDKFD_IOC_DESTROY_QUEUE \
1462 AMDKFD_IOWR(0x03, struct kfd_ioctl_destroy_queue_args)
1463
1464#define AMDKFD_IOC_SET_MEMORY_POLICY \
1465 AMDKFD_IOW(0x04, struct kfd_ioctl_set_memory_policy_args)
1466
1467#define AMDKFD_IOC_GET_CLOCK_COUNTERS \
1468 AMDKFD_IOWR(0x05, struct kfd_ioctl_get_clock_counters_args)
1469
1470#define AMDKFD_IOC_GET_PROCESS_APERTURES \
1471 AMDKFD_IOR(0x06, struct kfd_ioctl_get_process_apertures_args)
1472
1473#define AMDKFD_IOC_UPDATE_QUEUE \
1474 AMDKFD_IOW(0x07, struct kfd_ioctl_update_queue_args)
1475
1476#define AMDKFD_IOC_CREATE_EVENT \
1477 AMDKFD_IOWR(0x08, struct kfd_ioctl_create_event_args)
1478
1479#define AMDKFD_IOC_DESTROY_EVENT \
1480 AMDKFD_IOW(0x09, struct kfd_ioctl_destroy_event_args)
1481
1482#define AMDKFD_IOC_SET_EVENT \
1483 AMDKFD_IOW(0x0A, struct kfd_ioctl_set_event_args)
1484
1485#define AMDKFD_IOC_RESET_EVENT \
1486 AMDKFD_IOW(0x0B, struct kfd_ioctl_reset_event_args)
1487
1488#define AMDKFD_IOC_WAIT_EVENTS \
1489 AMDKFD_IOWR(0x0C, struct kfd_ioctl_wait_events_args)
1490
1491#define AMDKFD_IOC_DBG_REGISTER_DEPRECATED \
1492 AMDKFD_IOW(0x0D, struct kfd_ioctl_dbg_register_args)
1493
1494#define AMDKFD_IOC_DBG_UNREGISTER_DEPRECATED \
1495 AMDKFD_IOW(0x0E, struct kfd_ioctl_dbg_unregister_args)
1496
1497#define AMDKFD_IOC_DBG_ADDRESS_WATCH_DEPRECATED \
1498 AMDKFD_IOW(0x0F, struct kfd_ioctl_dbg_address_watch_args)
1499
1500#define AMDKFD_IOC_DBG_WAVE_CONTROL_DEPRECATED \
1501 AMDKFD_IOW(0x10, struct kfd_ioctl_dbg_wave_control_args)
1502
1503#define AMDKFD_IOC_SET_SCRATCH_BACKING_VA \
1504 AMDKFD_IOWR(0x11, struct kfd_ioctl_set_scratch_backing_va_args)
1505
1506#define AMDKFD_IOC_GET_TILE_CONFIG \
1507 AMDKFD_IOWR(0x12, struct kfd_ioctl_get_tile_config_args)
1508
1509#define AMDKFD_IOC_SET_TRAP_HANDLER \
1510 AMDKFD_IOW(0x13, struct kfd_ioctl_set_trap_handler_args)
1511
1512#define AMDKFD_IOC_GET_PROCESS_APERTURES_NEW \
1513 AMDKFD_IOWR(0x14, \
1514 struct kfd_ioctl_get_process_apertures_new_args)
1515
1516#define AMDKFD_IOC_ACQUIRE_VM \
1517 AMDKFD_IOW(0x15, struct kfd_ioctl_acquire_vm_args)
1518
1519#define AMDKFD_IOC_ALLOC_MEMORY_OF_GPU \
1520 AMDKFD_IOWR(0x16, struct kfd_ioctl_alloc_memory_of_gpu_args)
1521
1522#define AMDKFD_IOC_FREE_MEMORY_OF_GPU \
1523 AMDKFD_IOW(0x17, struct kfd_ioctl_free_memory_of_gpu_args)
1524
1525#define AMDKFD_IOC_MAP_MEMORY_TO_GPU \
1526 AMDKFD_IOWR(0x18, struct kfd_ioctl_map_memory_to_gpu_args)
1527
1528#define AMDKFD_IOC_UNMAP_MEMORY_FROM_GPU \
1529 AMDKFD_IOWR(0x19, struct kfd_ioctl_unmap_memory_from_gpu_args)
1530
1531#define AMDKFD_IOC_SET_CU_MASK \
1532 AMDKFD_IOW(0x1A, struct kfd_ioctl_set_cu_mask_args)
1533
1534#define AMDKFD_IOC_GET_QUEUE_WAVE_STATE \
1535 AMDKFD_IOWR(0x1B, struct kfd_ioctl_get_queue_wave_state_args)
1536
1537#define AMDKFD_IOC_GET_DMABUF_INFO \
1538 AMDKFD_IOWR(0x1C, struct kfd_ioctl_get_dmabuf_info_args)
1539
1540#define AMDKFD_IOC_IMPORT_DMABUF \
1541 AMDKFD_IOWR(0x1D, struct kfd_ioctl_import_dmabuf_args)
1542
1543#define AMDKFD_IOC_ALLOC_QUEUE_GWS \
1544 AMDKFD_IOWR(0x1E, struct kfd_ioctl_alloc_queue_gws_args)
1545
1546#define AMDKFD_IOC_SMI_EVENTS \
1547 AMDKFD_IOWR(0x1F, struct kfd_ioctl_smi_events_args)
1548
1549#define AMDKFD_IOC_SVM AMDKFD_IOWR(0x20, struct kfd_ioctl_svm_args)
1550
1551#define AMDKFD_IOC_SET_XNACK_MODE \
1552 AMDKFD_IOWR(0x21, struct kfd_ioctl_set_xnack_mode_args)
1553
1554#define AMDKFD_IOC_CRIU_OP \
1555 AMDKFD_IOWR(0x22, struct kfd_ioctl_criu_args)
1556
1557#define AMDKFD_IOC_AVAILABLE_MEMORY \
1558 AMDKFD_IOWR(0x23, struct kfd_ioctl_get_available_memory_args)
1559
1560#define AMDKFD_IOC_EXPORT_DMABUF \
1561 AMDKFD_IOWR(0x24, struct kfd_ioctl_export_dmabuf_args)
1562
1563#define AMDKFD_IOC_RUNTIME_ENABLE \
1564 AMDKFD_IOWR(0x25, struct kfd_ioctl_runtime_enable_args)
1565
1566#define AMDKFD_IOC_DBG_TRAP \
1567 AMDKFD_IOWR(0x26, struct kfd_ioctl_dbg_trap_args)
1568
1569#define AMDKFD_COMMAND_START 0x01
1570#define AMDKFD_COMMAND_END 0x27
1571
1572#endif
1573

source code of linux/include/uapi/linux/kfd_ioctl.h