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 <linux/idr.h>
35 #include <linux/kfifo.h>
36 #include <linux/seq_file.h>
37 #include <linux/kref.h>
38 #include <linux/sysfs.h>
39 #include <kgd_kfd_interface.h>
41 #include "amd_shared.h"
43 #define KFD_MAX_RING_ENTRY_SIZE 8
45 #define KFD_SYSFS_FILE_MODE 0444
47 /* GPU ID hash width in bits */
48 #define KFD_GPU_ID_HASH_WIDTH 16
50 /* Use upper bits of mmap offset to store KFD driver specific information.
51 * BITS[63:62] - Encode MMAP type
52 * BITS[61:46] - Encode gpu_id. To identify to which GPU the offset belongs to
53 * BITS[45:0] - MMAP offset value
55 * NOTE: struct vm_area_struct.vm_pgoff uses offset in pages. Hence, these
56 * defines are w.r.t to PAGE_SIZE
58 #define KFD_MMAP_TYPE_SHIFT (62 - PAGE_SHIFT)
59 #define KFD_MMAP_TYPE_MASK (0x3ULL << KFD_MMAP_TYPE_SHIFT)
60 #define KFD_MMAP_TYPE_DOORBELL (0x3ULL << KFD_MMAP_TYPE_SHIFT)
61 #define KFD_MMAP_TYPE_EVENTS (0x2ULL << KFD_MMAP_TYPE_SHIFT)
62 #define KFD_MMAP_TYPE_RESERVED_MEM (0x1ULL << KFD_MMAP_TYPE_SHIFT)
63 #define KFD_MMAP_TYPE_MMIO (0x0ULL << KFD_MMAP_TYPE_SHIFT)
65 #define KFD_MMAP_GPU_ID_SHIFT (46 - PAGE_SHIFT)
66 #define KFD_MMAP_GPU_ID_MASK (((1ULL << KFD_GPU_ID_HASH_WIDTH) - 1) \
67 << KFD_MMAP_GPU_ID_SHIFT)
68 #define KFD_MMAP_GPU_ID(gpu_id) ((((uint64_t)gpu_id) << KFD_MMAP_GPU_ID_SHIFT)\
69 & KFD_MMAP_GPU_ID_MASK)
70 #define KFD_MMAP_GPU_ID_GET(offset) ((offset & KFD_MMAP_GPU_ID_MASK) \
71 >> KFD_MMAP_GPU_ID_SHIFT)
73 #define KFD_MMAP_OFFSET_VALUE_MASK (0x3FFFFFFFFFFFULL >> PAGE_SHIFT)
74 #define KFD_MMAP_OFFSET_VALUE_GET(offset) (offset & KFD_MMAP_OFFSET_VALUE_MASK)
77 * When working with cp scheduler we should assign the HIQ manually or via
78 * the amdgpu driver to a fixed hqd slot, here are the fixed HIQ hqd slot
79 * definitions for Kaveri. In Kaveri only the first ME queues participates
80 * in the cp scheduling taking that in mind we set the HIQ slot in the
83 #define KFD_CIK_HIQ_PIPE 4
84 #define KFD_CIK_HIQ_QUEUE 0
86 /* Macro for allocating structures */
87 #define kfd_alloc_struct(ptr_to_struct) \
88 ((typeof(ptr_to_struct)) kzalloc(sizeof(*ptr_to_struct), GFP_KERNEL))
90 #define KFD_MAX_NUM_OF_PROCESSES 512
91 #define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS 1024
94 * Size of the per-process TBA+TMA buffer: 2 pages
96 * The first page is the TBA used for the CWSR ISA code. The second
97 * page is used as TMA for daisy changing a user-mode trap handler.
99 #define KFD_CWSR_TBA_TMA_SIZE (PAGE_SIZE * 2)
100 #define KFD_CWSR_TMA_OFFSET PAGE_SIZE
102 #define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE \
103 (KFD_MAX_NUM_OF_PROCESSES * \
104 KFD_MAX_NUM_OF_QUEUES_PER_PROCESS)
106 #define KFD_KERNEL_QUEUE_SIZE 2048
108 #define KFD_UNMAP_LATENCY_MS (4000)
112 * The doorbell index distance between SDMA RLC (2*i) and (2*i+1) in the
113 * same SDMA engine on SOC15, which has 8-byte doorbells for SDMA.
114 * 512 8-byte doorbell distance (i.e. one page away) ensures that SDMA RLC
115 * (2*i+1) doorbells (in terms of the lower 12 bit address) lie exactly in
116 * the OFFSET and SIZE set in registers like BIF_SDMA0_DOORBELL_RANGE.
118 #define KFD_QUEUE_DOORBELL_MIRROR_OFFSET 512
122 * Kernel module parameter to specify maximum number of supported queues per
125 extern int max_num_of_queues_per_device;
128 /* Kernel module parameter to specify the scheduling policy */
129 extern int sched_policy;
132 * Kernel module parameter to specify the maximum process
133 * number per HW scheduler
135 extern int hws_max_conc_proc;
137 extern int cwsr_enable;
140 * Kernel module parameter to specify whether to send sigterm to HSA process on
141 * unhandled exception
143 extern int send_sigterm;
146 * This kernel module is used to simulate large bar machine on non-large bar
149 extern int debug_largebar;
152 * Ignore CRAT table during KFD initialization, can be used to work around
153 * broken CRAT tables on some AMD systems
155 extern int ignore_crat;
158 * Set sh_mem_config.retry_disable on Vega10
163 * Halt if HWS hang is detected
165 extern int halt_if_hws_hang;
168 * Whether MEC FW support GWS barriers
170 extern bool hws_gws_support;
173 * Queue preemption timeout in ms
175 extern int queue_preemption_timeout_ms;
178 cache_policy_coherent,
179 cache_policy_noncoherent
182 #define KFD_IS_VI(chip) ((chip) >= CHIP_CARRIZO && (chip) <= CHIP_POLARIS11)
183 #define KFD_IS_DGPU(chip) (((chip) >= CHIP_TONGA && \
184 (chip) <= CHIP_NAVI10) || \
185 (chip) == CHIP_HAWAII)
186 #define KFD_IS_SOC15(chip) ((chip) >= CHIP_VEGA10)
188 struct kfd_event_interrupt_class {
189 bool (*interrupt_isr)(struct kfd_dev *dev,
190 const uint32_t *ih_ring_entry, uint32_t *patched_ihre,
192 void (*interrupt_wq)(struct kfd_dev *dev,
193 const uint32_t *ih_ring_entry);
196 struct kfd_device_info {
197 enum amd_asic_type asic_family;
198 const struct kfd_event_interrupt_class *event_interrupt_class;
199 unsigned int max_pasid_bits;
200 unsigned int max_no_of_hqd;
201 unsigned int doorbell_size;
202 size_t ih_ring_entry_size;
203 uint8_t num_of_watch_points;
204 uint16_t mqd_size_aligned;
206 bool needs_iommu_device;
207 bool needs_pci_atomics;
208 unsigned int num_sdma_engines;
209 unsigned int num_xgmi_sdma_engines;
210 unsigned int num_sdma_queues_per_engine;
214 uint32_t range_start;
221 struct kfd_vmid_info {
222 uint32_t first_vmid_kfd;
223 uint32_t last_vmid_kfd;
224 uint32_t vmid_num_kfd;
230 const struct kfd_device_info *device_info;
231 struct pci_dev *pdev;
233 unsigned int id; /* topology stub index */
235 phys_addr_t doorbell_base; /* Start of actual doorbells used by
236 * KFD. It is aligned for mapping
239 size_t doorbell_id_offset; /* Doorbell offset (from KFD doorbell
240 * to HW doorbell, GFX reserved some
243 u32 __iomem *doorbell_kernel_ptr; /* This is a pointer for a doorbells
244 * page used by kernel queue
247 struct kgd2kfd_shared_resources shared_resources;
248 struct kfd_vmid_info vm_info;
250 const struct kfd2kgd_calls *kfd2kgd;
251 struct mutex doorbell_mutex;
252 DECLARE_BITMAP(doorbell_available_index,
253 KFD_MAX_NUM_OF_QUEUES_PER_PROCESS);
256 uint64_t gtt_start_gpu_addr;
257 void *gtt_start_cpu_ptr;
259 struct mutex gtt_sa_lock;
260 unsigned int gtt_sa_chunk_size;
261 unsigned int gtt_sa_num_of_chunks;
264 struct kfifo ih_fifo;
265 struct workqueue_struct *ih_wq;
266 struct work_struct interrupt_work;
267 spinlock_t interrupt_lock;
269 /* QCM Device instance */
270 struct device_queue_manager *dqm;
274 * Interrupts of interest to KFD are copied
275 * from the HW ring into a SW ring.
277 bool interrupts_active;
280 struct kfd_dbgmgr *dbgmgr;
282 /* Firmware versions */
283 uint16_t mec_fw_version;
284 uint16_t sdma_fw_version;
286 /* Maximum process number mapped to HW scheduler */
287 unsigned int max_proc_per_quantum;
291 const void *cwsr_isa;
292 unsigned int cwsr_isa_size;
297 bool pci_atomic_requested;
300 atomic_t sram_ecc_flag;
302 /* Compute Profile ref. count */
303 atomic_t compute_profile;
305 /* Global GWS resource shared b/t processes*/
310 KFD_MEMPOOL_SYSTEM_CACHEABLE = 1,
311 KFD_MEMPOOL_SYSTEM_WRITECOMBINE = 2,
312 KFD_MEMPOOL_FRAMEBUFFER = 3,
315 /* Character device interface */
316 int kfd_chardev_init(void);
317 void kfd_chardev_exit(void);
318 struct device *kfd_chardev(void);
321 * enum kfd_unmap_queues_filter
323 * @KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE: Preempts single queue.
325 * @KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES: Preempts all queues in the
326 * running queues list.
328 * @KFD_UNMAP_QUEUES_FILTER_BY_PASID: Preempts queues that belongs to
332 enum kfd_unmap_queues_filter {
333 KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE,
334 KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES,
335 KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES,
336 KFD_UNMAP_QUEUES_FILTER_BY_PASID
340 * enum kfd_queue_type
342 * @KFD_QUEUE_TYPE_COMPUTE: Regular user mode queue type.
344 * @KFD_QUEUE_TYPE_SDMA: Sdma user mode queue type.
346 * @KFD_QUEUE_TYPE_HIQ: HIQ queue type.
348 * @KFD_QUEUE_TYPE_DIQ: DIQ queue type.
350 enum kfd_queue_type {
351 KFD_QUEUE_TYPE_COMPUTE,
355 KFD_QUEUE_TYPE_SDMA_XGMI
358 enum kfd_queue_format {
359 KFD_QUEUE_FORMAT_PM4,
363 enum KFD_QUEUE_PRIORITY {
364 KFD_QUEUE_PRIORITY_MINIMUM = 0,
365 KFD_QUEUE_PRIORITY_MAXIMUM = 15
369 * struct queue_properties
371 * @type: The queue type.
373 * @queue_id: Queue identifier.
375 * @queue_address: Queue ring buffer address.
377 * @queue_size: Queue ring buffer size.
379 * @priority: Defines the queue priority relative to other queues in the
381 * This is just an indication and HW scheduling may override the priority as
382 * necessary while keeping the relative prioritization.
383 * the priority granularity is from 0 to f which f is the highest priority.
384 * currently all queues are initialized with the highest priority.
386 * @queue_percent: This field is partially implemented and currently a zero in
387 * this field defines that the queue is non active.
389 * @read_ptr: User space address which points to the number of dwords the
390 * cp read from the ring buffer. This field updates automatically by the H/W.
392 * @write_ptr: Defines the number of dwords written to the ring buffer.
394 * @doorbell_ptr: This field aim is to notify the H/W of new packet written to
395 * the queue ring buffer. This field should be similar to write_ptr and the
396 * user should update this field after he updated the write_ptr.
398 * @doorbell_off: The doorbell offset in the doorbell pci-bar.
400 * @is_interop: Defines if this is a interop queue. Interop queue means that
401 * the queue can access both graphics and compute resources.
403 * @is_evicted: Defines if the queue is evicted. Only active queues
404 * are evicted, rendering them inactive.
406 * @is_active: Defines if the queue is active or not. @is_active and
407 * @is_evicted are protected by the DQM lock.
409 * @vmid: If the scheduling mode is no cp scheduling the field defines the vmid
412 * This structure represents the queue properties for each queue no matter if
413 * it's user mode or kernel mode queue.
416 struct queue_properties {
417 enum kfd_queue_type type;
418 enum kfd_queue_format format;
419 unsigned int queue_id;
420 uint64_t queue_address;
423 uint32_t queue_percent;
426 void __iomem *doorbell_ptr;
427 uint32_t doorbell_off;
431 /* Not relevant for user mode queues in cp scheduling */
433 /* Relevant only for sdma queues*/
434 uint32_t sdma_engine_id;
435 uint32_t sdma_queue_id;
436 uint32_t sdma_vm_addr;
437 /* Relevant only for VI */
438 uint64_t eop_ring_buffer_address;
439 uint32_t eop_ring_buffer_size;
440 uint64_t ctx_save_restore_area_address;
441 uint32_t ctx_save_restore_area_size;
442 uint32_t ctl_stack_size;
445 /* Relevant for CU */
446 uint32_t cu_mask_count; /* Must be a multiple of 32 */
450 #define QUEUE_IS_ACTIVE(q) ((q).queue_size > 0 && \
451 (q).queue_address != 0 && \
452 (q).queue_percent > 0 && \
458 * @list: Queue linked list.
460 * @mqd: The queue MQD.
462 * @mqd_mem_obj: The MQD local gpu memory object.
464 * @gart_mqd_addr: The MQD gart mc address.
466 * @properties: The queue properties.
468 * @mec: Used only in no cp scheduling mode and identifies to micro engine id
469 * that the queue should be execute on.
471 * @pipe: Used only in no cp scheduling mode and identifies the queue's pipe
474 * @queue: Used only in no cp scheduliong mode and identifies the queue's slot.
476 * @process: The kfd process that created this queue.
478 * @device: The kfd device that created this queue.
480 * @gws: Pointing to gws kgd_mem if this is a gws control queue; NULL
483 * This structure represents user mode compute queues.
484 * It contains all the necessary data to handle such queues.
489 struct list_head list;
491 struct kfd_mem_obj *mqd_mem_obj;
492 uint64_t gart_mqd_addr;
493 struct queue_properties properties;
499 unsigned int sdma_id;
500 unsigned int doorbell_id;
502 struct kfd_process *process;
503 struct kfd_dev *device;
508 * Please read the kfd_mqd_manager.h description.
511 KFD_MQD_TYPE_COMPUTE = 0, /* for no cp scheduling */
512 KFD_MQD_TYPE_HIQ, /* for hiq */
513 KFD_MQD_TYPE_CP, /* for cp queues and diq */
514 KFD_MQD_TYPE_SDMA, /* for sdma queues */
515 KFD_MQD_TYPE_DIQ, /* for diq */
519 enum KFD_PIPE_PRIORITY {
520 KFD_PIPE_PRIORITY_CS_LOW = 0,
521 KFD_PIPE_PRIORITY_CS_MEDIUM,
522 KFD_PIPE_PRIORITY_CS_HIGH
525 struct scheduling_resources {
526 unsigned int vmid_mask;
527 enum kfd_queue_type type;
531 uint32_t gds_heap_base;
532 uint32_t gds_heap_size;
535 struct process_queue_manager {
537 struct kfd_process *process;
538 struct list_head queues;
539 unsigned long *queue_slot_bitmap;
542 struct qcm_process_device {
543 /* The Device Queue Manager that owns this data */
544 struct device_queue_manager *dqm;
545 struct process_queue_manager *pqm;
547 struct list_head queues_list;
548 struct list_head priv_queue_list;
550 unsigned int queue_count;
553 unsigned int evicted; /* eviction counter, 0=active */
555 /* This flag tells if we should reset all wavefronts on
556 * process termination
558 bool reset_wavefronts;
561 * All the memory management data should be here too
563 uint64_t gds_context_area;
564 /* Contains page table flags such as AMDGPU_PTE_VALID since gfx9 */
565 uint64_t page_table_base;
566 uint32_t sh_mem_config;
567 uint32_t sh_mem_bases;
568 uint32_t sh_mem_ape1_base;
569 uint32_t sh_mem_ape1_limit;
573 uint32_t sh_hidden_private_base;
585 /* doorbell resources per process per device */
586 unsigned long *doorbell_bitmap;
589 /* KFD Memory Eviction */
591 /* Approx. wait time before attempting to restore evicted BOs */
592 #define PROCESS_RESTORE_TIME_MS 100
593 /* Approx. back off time if restore fails due to lack of memory */
594 #define PROCESS_BACK_OFF_TIME_MS 100
595 /* Approx. time before evicting the process again */
596 #define PROCESS_ACTIVE_TIME_MS 10
598 /* 8 byte handle containing GPU ID in the most significant 4 bytes and
599 * idr_handle in the least significant 4 bytes
601 #define MAKE_HANDLE(gpu_id, idr_handle) \
602 (((uint64_t)(gpu_id) << 32) + idr_handle)
603 #define GET_GPU_ID(handle) (handle >> 32)
604 #define GET_IDR_HANDLE(handle) (handle & 0xFFFFFFFF)
612 /* Data that is per-process-per device. */
613 struct kfd_process_device {
615 * List of all per-device data for a process.
616 * Starts from kfd_process.per_device_data.
618 struct list_head per_device_list;
620 /* The device that owns this data. */
623 /* The process that owns this kfd_process_device. */
624 struct kfd_process *process;
626 /* per-process-per device QCM data structure */
627 struct qcm_process_device qpd;
633 uint64_t gpuvm_limit;
634 uint64_t scratch_base;
635 uint64_t scratch_limit;
637 /* VM context for GPUVM allocations */
638 struct file *drm_file;
641 /* GPUVM allocations storage */
642 struct idr alloc_idr;
644 /* Flag used to tell the pdd has dequeued from the dqm.
645 * This is used to prevent dev->dqm->ops.process_termination() from
646 * being called twice when it is already called in IOMMU callback
649 bool already_dequeued;
651 /* Is this process/pasid bound to this device? (amd_iommu_bind_pasid) */
652 enum kfd_pdd_bound bound;
655 #define qpd_to_pdd(x) container_of(x, struct kfd_process_device, qpd)
660 * kfd_process are stored in an mm_struct*->kfd_process*
661 * hash table (kfd_processes in kfd_process.c)
663 struct hlist_node kfd_processes;
666 * Opaque pointer to mm_struct. We don't hold a reference to
667 * it so it should never be dereferenced from here. This is
668 * only used for looking up processes by their mm.
673 struct work_struct release_work;
678 * In any process, the thread that started main() is the lead
679 * thread and outlives the rest.
680 * It is here because amd_iommu_bind_pasid wants a task_struct.
681 * It can also be used for safely getting a reference to the
682 * mm_struct of the process.
684 struct task_struct *lead_thread;
686 /* We want to receive a notification when the mm_struct is destroyed */
687 struct mmu_notifier mmu_notifier;
689 /* Use for delayed freeing of kfd_process structure */
693 unsigned int doorbell_index;
696 * List of kfd_process_device structures,
697 * one for each device the process is using.
699 struct list_head per_device_data;
701 struct process_queue_manager pqm;
703 /*Is the user space process 32 bit?*/
704 bool is_32bit_user_mode;
706 /* Event-related data */
707 struct mutex event_mutex;
708 /* Event ID allocator and lookup */
709 struct idr event_idr;
711 struct kfd_signal_page *signal_page;
712 size_t signal_mapped_size;
713 size_t signal_event_count;
714 bool signal_event_limit_reached;
716 /* Information used for memory eviction */
717 void *kgd_process_info;
718 /* Eviction fence that is attached to all the BOs of this process. The
719 * fence will be triggered during eviction and new one will be created
722 struct dma_fence *ef;
724 /* Work items for evicting and restoring BOs */
725 struct delayed_work eviction_work;
726 struct delayed_work restore_work;
727 /* seqno of the last scheduled eviction */
728 unsigned int last_eviction_seqno;
729 /* Approx. the last timestamp (in jiffies) when the process was
730 * restored after an eviction
732 unsigned long last_restore_timestamp;
734 /* Kobj for our procfs */
735 struct kobject *kobj;
736 struct attribute attr_pasid;
739 #define KFD_PROCESS_TABLE_SIZE 5 /* bits: 32 entries */
740 extern DECLARE_HASHTABLE(kfd_processes_table, KFD_PROCESS_TABLE_SIZE);
741 extern struct srcu_struct kfd_processes_srcu;
744 * Ioctl function type.
746 * \param filep pointer to file structure.
747 * \param p amdkfd process pointer.
748 * \param data pointer to arg that was copied from user.
750 typedef int amdkfd_ioctl_t(struct file *filep, struct kfd_process *p,
753 struct amdkfd_ioctl_desc {
756 amdkfd_ioctl_t *func;
757 unsigned int cmd_drv;
760 bool kfd_dev_is_large_bar(struct kfd_dev *dev);
762 int kfd_process_create_wq(void);
763 void kfd_process_destroy_wq(void);
764 struct kfd_process *kfd_create_process(struct file *filep);
765 struct kfd_process *kfd_get_process(const struct task_struct *);
766 struct kfd_process *kfd_lookup_process_by_pasid(unsigned int pasid);
767 struct kfd_process *kfd_lookup_process_by_mm(const struct mm_struct *mm);
768 void kfd_unref_process(struct kfd_process *p);
769 int kfd_process_evict_queues(struct kfd_process *p);
770 int kfd_process_restore_queues(struct kfd_process *p);
771 void kfd_suspend_all_processes(void);
772 int kfd_resume_all_processes(void);
774 int kfd_process_device_init_vm(struct kfd_process_device *pdd,
775 struct file *drm_file);
776 struct kfd_process_device *kfd_bind_process_to_device(struct kfd_dev *dev,
777 struct kfd_process *p);
778 struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev,
779 struct kfd_process *p);
780 struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev,
781 struct kfd_process *p);
783 int kfd_reserved_mem_mmap(struct kfd_dev *dev, struct kfd_process *process,
784 struct vm_area_struct *vma);
786 /* KFD process API for creating and translating handles */
787 int kfd_process_device_create_obj_handle(struct kfd_process_device *pdd,
789 void *kfd_process_device_translate_handle(struct kfd_process_device *p,
791 void kfd_process_device_remove_obj_handle(struct kfd_process_device *pdd,
794 /* Process device data iterator */
795 struct kfd_process_device *kfd_get_first_process_device_data(
796 struct kfd_process *p);
797 struct kfd_process_device *kfd_get_next_process_device_data(
798 struct kfd_process *p,
799 struct kfd_process_device *pdd);
800 bool kfd_has_process_device_data(struct kfd_process *p);
803 int kfd_pasid_init(void);
804 void kfd_pasid_exit(void);
805 bool kfd_set_pasid_limit(unsigned int new_limit);
806 unsigned int kfd_get_pasid_limit(void);
807 unsigned int kfd_pasid_alloc(void);
808 void kfd_pasid_free(unsigned int pasid);
811 size_t kfd_doorbell_process_slice(struct kfd_dev *kfd);
812 int kfd_doorbell_init(struct kfd_dev *kfd);
813 void kfd_doorbell_fini(struct kfd_dev *kfd);
814 int kfd_doorbell_mmap(struct kfd_dev *dev, struct kfd_process *process,
815 struct vm_area_struct *vma);
816 void __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd,
817 unsigned int *doorbell_off);
818 void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr);
819 u32 read_kernel_doorbell(u32 __iomem *db);
820 void write_kernel_doorbell(void __iomem *db, u32 value);
821 void write_kernel_doorbell64(void __iomem *db, u64 value);
822 unsigned int kfd_doorbell_id_to_offset(struct kfd_dev *kfd,
823 struct kfd_process *process,
824 unsigned int doorbell_id);
825 phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev,
826 struct kfd_process *process);
827 int kfd_alloc_process_doorbells(struct kfd_process *process);
828 void kfd_free_process_doorbells(struct kfd_process *process);
830 /* GTT Sub-Allocator */
832 int kfd_gtt_sa_allocate(struct kfd_dev *kfd, unsigned int size,
833 struct kfd_mem_obj **mem_obj);
835 int kfd_gtt_sa_free(struct kfd_dev *kfd, struct kfd_mem_obj *mem_obj);
837 extern struct device *kfd_device;
840 void kfd_procfs_init(void);
841 void kfd_procfs_shutdown(void);
844 int kfd_topology_init(void);
845 void kfd_topology_shutdown(void);
846 int kfd_topology_add_device(struct kfd_dev *gpu);
847 int kfd_topology_remove_device(struct kfd_dev *gpu);
848 struct kfd_topology_device *kfd_topology_device_by_proximity_domain(
849 uint32_t proximity_domain);
850 struct kfd_topology_device *kfd_topology_device_by_id(uint32_t gpu_id);
851 struct kfd_dev *kfd_device_by_id(uint32_t gpu_id);
852 struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev);
853 struct kfd_dev *kfd_device_by_kgd(const struct kgd_dev *kgd);
854 int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_dev **kdev);
855 int kfd_numa_node_to_apic_id(int numa_node_id);
858 int kfd_interrupt_init(struct kfd_dev *dev);
859 void kfd_interrupt_exit(struct kfd_dev *dev);
860 bool enqueue_ih_ring_entry(struct kfd_dev *kfd, const void *ih_ring_entry);
861 bool interrupt_is_wanted(struct kfd_dev *dev,
862 const uint32_t *ih_ring_entry,
863 uint32_t *patched_ihre, bool *flag);
865 /* amdkfd Apertures */
866 int kfd_init_apertures(struct kfd_process *process);
868 /* Queue Context Management */
869 int init_queue(struct queue **q, const struct queue_properties *properties);
870 void uninit_queue(struct queue *q);
871 void print_queue_properties(struct queue_properties *q);
872 void print_queue(struct queue *q);
874 struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type,
875 struct kfd_dev *dev);
876 struct mqd_manager *mqd_manager_init_cik_hawaii(enum KFD_MQD_TYPE type,
877 struct kfd_dev *dev);
878 struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type,
879 struct kfd_dev *dev);
880 struct mqd_manager *mqd_manager_init_vi_tonga(enum KFD_MQD_TYPE type,
881 struct kfd_dev *dev);
882 struct mqd_manager *mqd_manager_init_v9(enum KFD_MQD_TYPE type,
883 struct kfd_dev *dev);
884 struct mqd_manager *mqd_manager_init_v10(enum KFD_MQD_TYPE type,
885 struct kfd_dev *dev);
886 struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev);
887 void device_queue_manager_uninit(struct device_queue_manager *dqm);
888 struct kernel_queue *kernel_queue_init(struct kfd_dev *dev,
889 enum kfd_queue_type type);
890 void kernel_queue_uninit(struct kernel_queue *kq);
891 int kfd_process_vm_fault(struct device_queue_manager *dqm, unsigned int pasid);
893 /* Process Queue Manager */
894 struct process_queue_node {
896 struct kernel_queue *kq;
897 struct list_head process_queue_list;
900 void kfd_process_dequeue_from_device(struct kfd_process_device *pdd);
901 void kfd_process_dequeue_from_all_devices(struct kfd_process *p);
902 int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p);
903 void pqm_uninit(struct process_queue_manager *pqm);
904 int pqm_create_queue(struct process_queue_manager *pqm,
907 struct queue_properties *properties,
909 int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid);
910 int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid,
911 struct queue_properties *p);
912 int pqm_set_cu_mask(struct process_queue_manager *pqm, unsigned int qid,
913 struct queue_properties *p);
914 int pqm_set_gws(struct process_queue_manager *pqm, unsigned int qid,
916 struct kernel_queue *pqm_get_kernel_queue(struct process_queue_manager *pqm,
918 int pqm_get_wave_state(struct process_queue_manager *pqm,
920 void __user *ctl_stack,
921 u32 *ctl_stack_used_size,
922 u32 *save_area_used_size);
924 int amdkfd_fence_wait_timeout(unsigned int *fence_addr,
925 unsigned int fence_value,
926 unsigned int timeout_ms);
930 #define KFD_FENCE_COMPLETED (100)
931 #define KFD_FENCE_INIT (10)
933 struct packet_manager {
934 struct device_queue_manager *dqm;
935 struct kernel_queue *priv_queue;
938 struct kfd_mem_obj *ib_buffer_obj;
939 unsigned int ib_size_bytes;
941 const struct packet_manager_funcs *pmf;
944 struct packet_manager_funcs {
945 /* Support ASIC-specific packet formats for PM4 packets */
946 int (*map_process)(struct packet_manager *pm, uint32_t *buffer,
947 struct qcm_process_device *qpd);
948 int (*runlist)(struct packet_manager *pm, uint32_t *buffer,
949 uint64_t ib, size_t ib_size_in_dwords, bool chain);
950 int (*set_resources)(struct packet_manager *pm, uint32_t *buffer,
951 struct scheduling_resources *res);
952 int (*map_queues)(struct packet_manager *pm, uint32_t *buffer,
953 struct queue *q, bool is_static);
954 int (*unmap_queues)(struct packet_manager *pm, uint32_t *buffer,
955 enum kfd_queue_type type,
956 enum kfd_unmap_queues_filter mode,
957 uint32_t filter_param, bool reset,
958 unsigned int sdma_engine);
959 int (*query_status)(struct packet_manager *pm, uint32_t *buffer,
960 uint64_t fence_address, uint32_t fence_value);
961 int (*release_mem)(uint64_t gpu_addr, uint32_t *buffer);
964 int map_process_size;
966 int set_resources_size;
968 int unmap_queues_size;
969 int query_status_size;
970 int release_mem_size;
973 extern const struct packet_manager_funcs kfd_vi_pm_funcs;
974 extern const struct packet_manager_funcs kfd_v9_pm_funcs;
975 extern const struct packet_manager_funcs kfd_v10_pm_funcs;
977 int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm);
978 void pm_uninit(struct packet_manager *pm);
979 int pm_send_set_resources(struct packet_manager *pm,
980 struct scheduling_resources *res);
981 int pm_send_runlist(struct packet_manager *pm, struct list_head *dqm_queues);
982 int pm_send_query_status(struct packet_manager *pm, uint64_t fence_address,
983 uint32_t fence_value);
985 int pm_send_unmap_queue(struct packet_manager *pm, enum kfd_queue_type type,
986 enum kfd_unmap_queues_filter mode,
987 uint32_t filter_param, bool reset,
988 unsigned int sdma_engine);
990 void pm_release_ib(struct packet_manager *pm);
992 /* Following PM funcs can be shared among VI and AI */
993 unsigned int pm_build_pm4_header(unsigned int opcode, size_t packet_size);
994 int pm_set_resources_vi(struct packet_manager *pm, uint32_t *buffer,
995 struct scheduling_resources *res);
998 uint64_t kfd_get_number_elems(struct kfd_dev *kfd);
1001 extern const struct kfd_event_interrupt_class event_interrupt_class_cik;
1002 extern const struct kfd_event_interrupt_class event_interrupt_class_v9;
1004 extern const struct kfd_device_global_init_class device_global_init_class_cik;
1006 void kfd_event_init_process(struct kfd_process *p);
1007 void kfd_event_free_process(struct kfd_process *p);
1008 int kfd_event_mmap(struct kfd_process *process, struct vm_area_struct *vma);
1009 int kfd_wait_on_events(struct kfd_process *p,
1010 uint32_t num_events, void __user *data,
1011 bool all, uint32_t user_timeout_ms,
1012 uint32_t *wait_result);
1013 void kfd_signal_event_interrupt(unsigned int pasid, uint32_t partial_id,
1014 uint32_t valid_id_bits);
1015 void kfd_signal_iommu_event(struct kfd_dev *dev,
1016 unsigned int pasid, unsigned long address,
1017 bool is_write_requested, bool is_execute_requested);
1018 void kfd_signal_hw_exception_event(unsigned int pasid);
1019 int kfd_set_event(struct kfd_process *p, uint32_t event_id);
1020 int kfd_reset_event(struct kfd_process *p, uint32_t event_id);
1021 int kfd_event_page_set(struct kfd_process *p, void *kernel_address,
1023 int kfd_event_create(struct file *devkfd, struct kfd_process *p,
1024 uint32_t event_type, bool auto_reset, uint32_t node_id,
1025 uint32_t *event_id, uint32_t *event_trigger_data,
1026 uint64_t *event_page_offset, uint32_t *event_slot_index);
1027 int kfd_event_destroy(struct kfd_process *p, uint32_t event_id);
1029 void kfd_signal_vm_fault_event(struct kfd_dev *dev, unsigned int pasid,
1030 struct kfd_vm_fault_info *info);
1032 void kfd_signal_reset_event(struct kfd_dev *dev);
1034 void kfd_flush_tlb(struct kfd_process_device *pdd);
1036 int dbgdev_wave_reset_wavefronts(struct kfd_dev *dev, struct kfd_process *p);
1038 bool kfd_is_locked(void);
1040 /* Compute profile */
1041 void kfd_inc_compute_active(struct kfd_dev *dev);
1042 void kfd_dec_compute_active(struct kfd_dev *dev);
1045 #if defined(CONFIG_DEBUG_FS)
1047 void kfd_debugfs_init(void);
1048 void kfd_debugfs_fini(void);
1049 int kfd_debugfs_mqds_by_process(struct seq_file *m, void *data);
1050 int pqm_debugfs_mqds(struct seq_file *m, void *data);
1051 int kfd_debugfs_hqds_by_device(struct seq_file *m, void *data);
1052 int dqm_debugfs_hqds(struct seq_file *m, void *data);
1053 int kfd_debugfs_rls_by_device(struct seq_file *m, void *data);
1054 int pm_debugfs_runlist(struct seq_file *m, void *data);
1056 int kfd_debugfs_hang_hws(struct kfd_dev *dev);
1057 int pm_debugfs_hang_hws(struct packet_manager *pm);
1058 int dqm_debugfs_execute_queues(struct device_queue_manager *dqm);
1062 static inline void kfd_debugfs_init(void) {}
1063 static inline void kfd_debugfs_fini(void) {}