14a488a7aSOded Gabbay /* 24a488a7aSOded Gabbay * Copyright 2014 Advanced Micro Devices, Inc. 34a488a7aSOded Gabbay * 44a488a7aSOded Gabbay * Permission is hereby granted, free of charge, to any person obtaining a 54a488a7aSOded Gabbay * copy of this software and associated documentation files (the "Software"), 64a488a7aSOded Gabbay * to deal in the Software without restriction, including without limitation 74a488a7aSOded Gabbay * the rights to use, copy, modify, merge, publish, distribute, sublicense, 84a488a7aSOded Gabbay * and/or sell copies of the Software, and to permit persons to whom the 94a488a7aSOded Gabbay * Software is furnished to do so, subject to the following conditions: 104a488a7aSOded Gabbay * 114a488a7aSOded Gabbay * The above copyright notice and this permission notice shall be included in 124a488a7aSOded Gabbay * all copies or substantial portions of the Software. 134a488a7aSOded Gabbay * 144a488a7aSOded Gabbay * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 154a488a7aSOded Gabbay * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 164a488a7aSOded Gabbay * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 174a488a7aSOded Gabbay * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 184a488a7aSOded Gabbay * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 194a488a7aSOded Gabbay * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 204a488a7aSOded Gabbay * OTHER DEALINGS IN THE SOFTWARE. 214a488a7aSOded Gabbay */ 224a488a7aSOded Gabbay 234a488a7aSOded Gabbay #ifndef KFD_PRIV_H_INCLUDED 244a488a7aSOded Gabbay #define KFD_PRIV_H_INCLUDED 254a488a7aSOded Gabbay 264a488a7aSOded Gabbay #include <linux/hashtable.h> 274a488a7aSOded Gabbay #include <linux/mmu_notifier.h> 284a488a7aSOded Gabbay #include <linux/mutex.h> 294a488a7aSOded Gabbay #include <linux/types.h> 304a488a7aSOded Gabbay #include <linux/atomic.h> 314a488a7aSOded Gabbay #include <linux/workqueue.h> 324a488a7aSOded Gabbay #include <linux/spinlock.h> 3319f6d2a6SOded Gabbay #include <linux/kfd_ioctl.h> 34482f0777SFelix Kuehling #include <linux/idr.h> 3504ad47bdSAndres Rodriguez #include <linux/kfifo.h> 36851a645eSFelix Kuehling #include <linux/seq_file.h> 375ce10687SFelix Kuehling #include <linux/kref.h> 384a488a7aSOded Gabbay #include <kgd_kfd_interface.h> 394a488a7aSOded Gabbay 40e596b903SYong Zhao #include "amd_shared.h" 41e596b903SYong Zhao 425b5c4e40SEvgeny Pinchuk #define KFD_SYSFS_FILE_MODE 0444 435b5c4e40SEvgeny Pinchuk 44df03ef93SHarish Kasiviswanathan /* GPU ID hash width in bits */ 45df03ef93SHarish Kasiviswanathan #define KFD_GPU_ID_HASH_WIDTH 16 46df03ef93SHarish Kasiviswanathan 47df03ef93SHarish Kasiviswanathan /* Use upper bits of mmap offset to store KFD driver specific information. 48df03ef93SHarish Kasiviswanathan * BITS[63:62] - Encode MMAP type 49df03ef93SHarish Kasiviswanathan * BITS[61:46] - Encode gpu_id. To identify to which GPU the offset belongs to 50df03ef93SHarish Kasiviswanathan * BITS[45:0] - MMAP offset value 51df03ef93SHarish Kasiviswanathan * 52df03ef93SHarish Kasiviswanathan * NOTE: struct vm_area_struct.vm_pgoff uses offset in pages. Hence, these 53df03ef93SHarish Kasiviswanathan * defines are w.r.t to PAGE_SIZE 54df03ef93SHarish Kasiviswanathan */ 55df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_SHIFT (62 - PAGE_SHIFT) 56df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_MASK (0x3ULL << KFD_MMAP_TYPE_SHIFT) 57df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_DOORBELL (0x3ULL << KFD_MMAP_TYPE_SHIFT) 58df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_EVENTS (0x2ULL << KFD_MMAP_TYPE_SHIFT) 59df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_RESERVED_MEM (0x1ULL << KFD_MMAP_TYPE_SHIFT) 60df03ef93SHarish Kasiviswanathan 61df03ef93SHarish Kasiviswanathan #define KFD_MMAP_GPU_ID_SHIFT (46 - PAGE_SHIFT) 62df03ef93SHarish Kasiviswanathan #define KFD_MMAP_GPU_ID_MASK (((1ULL << KFD_GPU_ID_HASH_WIDTH) - 1) \ 63df03ef93SHarish Kasiviswanathan << KFD_MMAP_GPU_ID_SHIFT) 64df03ef93SHarish Kasiviswanathan #define KFD_MMAP_GPU_ID(gpu_id) ((((uint64_t)gpu_id) << KFD_MMAP_GPU_ID_SHIFT)\ 65df03ef93SHarish Kasiviswanathan & KFD_MMAP_GPU_ID_MASK) 66df03ef93SHarish Kasiviswanathan #define KFD_MMAP_GPU_ID_GET(offset) ((offset & KFD_MMAP_GPU_ID_MASK) \ 67df03ef93SHarish Kasiviswanathan >> KFD_MMAP_GPU_ID_SHIFT) 68df03ef93SHarish Kasiviswanathan 69df03ef93SHarish Kasiviswanathan #define KFD_MMAP_OFFSET_VALUE_MASK (0x3FFFFFFFFFFFULL >> PAGE_SHIFT) 70df03ef93SHarish Kasiviswanathan #define KFD_MMAP_OFFSET_VALUE_GET(offset) (offset & KFD_MMAP_OFFSET_VALUE_MASK) 71f3a39818SAndrew Lewycky 72ed6e6a34SBen Goz /* 73ed6e6a34SBen Goz * When working with cp scheduler we should assign the HIQ manually or via 74ed6e6a34SBen Goz * the radeon driver to a fixed hqd slot, here are the fixed HIQ hqd slot 75ed6e6a34SBen Goz * definitions for Kaveri. In Kaveri only the first ME queues participates 76ed6e6a34SBen Goz * in the cp scheduling taking that in mind we set the HIQ slot in the 77ed6e6a34SBen Goz * second ME. 78ed6e6a34SBen Goz */ 79ed6e6a34SBen Goz #define KFD_CIK_HIQ_PIPE 4 80ed6e6a34SBen Goz #define KFD_CIK_HIQ_QUEUE 0 81ed6e6a34SBen Goz 825b5c4e40SEvgeny Pinchuk /* Macro for allocating structures */ 835b5c4e40SEvgeny Pinchuk #define kfd_alloc_struct(ptr_to_struct) \ 845b5c4e40SEvgeny Pinchuk ((typeof(ptr_to_struct)) kzalloc(sizeof(*ptr_to_struct), GFP_KERNEL)) 855b5c4e40SEvgeny Pinchuk 8619f6d2a6SOded Gabbay #define KFD_MAX_NUM_OF_PROCESSES 512 87b8cbab04SOded Gabbay #define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS 1024 8819f6d2a6SOded Gabbay 8919f6d2a6SOded Gabbay /* 90373d7080SFelix Kuehling * Size of the per-process TBA+TMA buffer: 2 pages 91373d7080SFelix Kuehling * 92373d7080SFelix Kuehling * The first page is the TBA used for the CWSR ISA code. The second 93373d7080SFelix Kuehling * page is used as TMA for daisy changing a user-mode trap handler. 94373d7080SFelix Kuehling */ 95373d7080SFelix Kuehling #define KFD_CWSR_TBA_TMA_SIZE (PAGE_SIZE * 2) 96373d7080SFelix Kuehling #define KFD_CWSR_TMA_OFFSET PAGE_SIZE 97373d7080SFelix Kuehling 98373d7080SFelix Kuehling /* 99b8cbab04SOded Gabbay * Kernel module parameter to specify maximum number of supported queues per 100b8cbab04SOded Gabbay * device 10119f6d2a6SOded Gabbay */ 102b8cbab04SOded Gabbay extern int max_num_of_queues_per_device; 10319f6d2a6SOded Gabbay 104b8cbab04SOded Gabbay #define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE_DEFAULT 4096 105b8cbab04SOded Gabbay #define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE \ 106b8cbab04SOded Gabbay (KFD_MAX_NUM_OF_PROCESSES * \ 107b8cbab04SOded Gabbay KFD_MAX_NUM_OF_QUEUES_PER_PROCESS) 10819f6d2a6SOded Gabbay 109ed6e6a34SBen Goz #define KFD_KERNEL_QUEUE_SIZE 2048 110ed6e6a34SBen Goz 11131c21fecSBen Goz /* Kernel module parameter to specify the scheduling policy */ 11231c21fecSBen Goz extern int sched_policy; 11331c21fecSBen Goz 114a99c6d4fSFelix Kuehling /* 115a99c6d4fSFelix Kuehling * Kernel module parameter to specify the maximum process 116a99c6d4fSFelix Kuehling * number per HW scheduler 117a99c6d4fSFelix Kuehling */ 118a99c6d4fSFelix Kuehling extern int hws_max_conc_proc; 119a99c6d4fSFelix Kuehling 120373d7080SFelix Kuehling extern int cwsr_enable; 121373d7080SFelix Kuehling 12281663016SOded Gabbay /* 12381663016SOded Gabbay * Kernel module parameter to specify whether to send sigterm to HSA process on 12481663016SOded Gabbay * unhandled exception 12581663016SOded Gabbay */ 12681663016SOded Gabbay extern int send_sigterm; 12781663016SOded Gabbay 128ebcfd1e2SFelix Kuehling /* 129374200b1SFelix Kuehling * This kernel module is used to simulate large bar machine on non-large bar 130374200b1SFelix Kuehling * enabled machines. 131374200b1SFelix Kuehling */ 132374200b1SFelix Kuehling extern int debug_largebar; 133374200b1SFelix Kuehling 134374200b1SFelix Kuehling /* 135ebcfd1e2SFelix Kuehling * Ignore CRAT table during KFD initialization, can be used to work around 136ebcfd1e2SFelix Kuehling * broken CRAT tables on some AMD systems 137ebcfd1e2SFelix Kuehling */ 138ebcfd1e2SFelix Kuehling extern int ignore_crat; 139ebcfd1e2SFelix Kuehling 14031c21fecSBen Goz /** 14131c21fecSBen Goz * enum kfd_sched_policy 14231c21fecSBen Goz * 14331c21fecSBen Goz * @KFD_SCHED_POLICY_HWS: H/W scheduling policy known as command processor (cp) 14431c21fecSBen Goz * scheduling. In this scheduling mode we're using the firmware code to 14531c21fecSBen Goz * schedule the user mode queues and kernel queues such as HIQ and DIQ. 14631c21fecSBen Goz * the HIQ queue is used as a special queue that dispatches the configuration 14731c21fecSBen Goz * to the cp and the user mode queues list that are currently running. 14831c21fecSBen Goz * the DIQ queue is a debugging queue that dispatches debugging commands to the 14931c21fecSBen Goz * firmware. 15031c21fecSBen Goz * in this scheduling mode user mode queues over subscription feature is 15131c21fecSBen Goz * enabled. 15231c21fecSBen Goz * 15331c21fecSBen Goz * @KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION: The same as above but the over 15431c21fecSBen Goz * subscription feature disabled. 15531c21fecSBen Goz * 15631c21fecSBen Goz * @KFD_SCHED_POLICY_NO_HWS: no H/W scheduling policy is a mode which directly 15731c21fecSBen Goz * set the command processor registers and sets the queues "manually". This 15831c21fecSBen Goz * mode is used *ONLY* for debugging proposes. 15931c21fecSBen Goz * 16031c21fecSBen Goz */ 16131c21fecSBen Goz enum kfd_sched_policy { 16231c21fecSBen Goz KFD_SCHED_POLICY_HWS = 0, 16331c21fecSBen Goz KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION, 16431c21fecSBen Goz KFD_SCHED_POLICY_NO_HWS 16531c21fecSBen Goz }; 16631c21fecSBen Goz 167ed6e6a34SBen Goz enum cache_policy { 168ed6e6a34SBen Goz cache_policy_coherent, 169ed6e6a34SBen Goz cache_policy_noncoherent 170ed6e6a34SBen Goz }; 171ed6e6a34SBen Goz 172ef568db7SFelix Kuehling #define KFD_IS_SOC15(chip) ((chip) >= CHIP_VEGA10) 173ef568db7SFelix Kuehling 174f3a39818SAndrew Lewycky struct kfd_event_interrupt_class { 175f3a39818SAndrew Lewycky bool (*interrupt_isr)(struct kfd_dev *dev, 176f3a39818SAndrew Lewycky const uint32_t *ih_ring_entry); 177f3a39818SAndrew Lewycky void (*interrupt_wq)(struct kfd_dev *dev, 178f3a39818SAndrew Lewycky const uint32_t *ih_ring_entry); 179f3a39818SAndrew Lewycky }; 180f3a39818SAndrew Lewycky 1814a488a7aSOded Gabbay struct kfd_device_info { 182e596b903SYong Zhao enum amd_asic_type asic_family; 183f3a39818SAndrew Lewycky const struct kfd_event_interrupt_class *event_interrupt_class; 1844a488a7aSOded Gabbay unsigned int max_pasid_bits; 185992839adSYair Shachar unsigned int max_no_of_hqd; 186ada2b29cSFelix Kuehling unsigned int doorbell_size; 1874a488a7aSOded Gabbay size_t ih_ring_entry_size; 188f7c826adSAlexey Skidanov uint8_t num_of_watch_points; 18919f6d2a6SOded Gabbay uint16_t mqd_size_aligned; 190373d7080SFelix Kuehling bool supports_cwsr; 19164d1c3a4SFelix Kuehling bool needs_iommu_device; 1923ee2d00cSFelix Kuehling bool needs_pci_atomics; 1934a488a7aSOded Gabbay }; 1944a488a7aSOded Gabbay 19536b5c08fSOded Gabbay struct kfd_mem_obj { 19636b5c08fSOded Gabbay uint32_t range_start; 19736b5c08fSOded Gabbay uint32_t range_end; 19836b5c08fSOded Gabbay uint64_t gpu_addr; 19936b5c08fSOded Gabbay uint32_t *cpu_ptr; 20036b5c08fSOded Gabbay }; 20136b5c08fSOded Gabbay 20244008d7aSYong Zhao struct kfd_vmid_info { 20344008d7aSYong Zhao uint32_t first_vmid_kfd; 20444008d7aSYong Zhao uint32_t last_vmid_kfd; 20544008d7aSYong Zhao uint32_t vmid_num_kfd; 20644008d7aSYong Zhao }; 20744008d7aSYong Zhao 2084a488a7aSOded Gabbay struct kfd_dev { 2094a488a7aSOded Gabbay struct kgd_dev *kgd; 2104a488a7aSOded Gabbay 2114a488a7aSOded Gabbay const struct kfd_device_info *device_info; 2124a488a7aSOded Gabbay struct pci_dev *pdev; 2134a488a7aSOded Gabbay 2144a488a7aSOded Gabbay unsigned int id; /* topology stub index */ 2154a488a7aSOded Gabbay 21619f6d2a6SOded Gabbay phys_addr_t doorbell_base; /* Start of actual doorbells used by 21719f6d2a6SOded Gabbay * KFD. It is aligned for mapping 21819f6d2a6SOded Gabbay * into user mode 21919f6d2a6SOded Gabbay */ 22019f6d2a6SOded Gabbay size_t doorbell_id_offset; /* Doorbell offset (from KFD doorbell 22119f6d2a6SOded Gabbay * to HW doorbell, GFX reserved some 22219f6d2a6SOded Gabbay * at the start) 22319f6d2a6SOded Gabbay */ 22419f6d2a6SOded Gabbay u32 __iomem *doorbell_kernel_ptr; /* This is a pointer for a doorbells 22519f6d2a6SOded Gabbay * page used by kernel queue 22619f6d2a6SOded Gabbay */ 22719f6d2a6SOded Gabbay 2284a488a7aSOded Gabbay struct kgd2kfd_shared_resources shared_resources; 22944008d7aSYong Zhao struct kfd_vmid_info vm_info; 2304a488a7aSOded Gabbay 231cea405b1SXihan Zhang const struct kfd2kgd_calls *kfd2kgd; 232cea405b1SXihan Zhang struct mutex doorbell_mutex; 233f761d8bdSJoe Perches DECLARE_BITMAP(doorbell_available_index, 234f761d8bdSJoe Perches KFD_MAX_NUM_OF_QUEUES_PER_PROCESS); 235cea405b1SXihan Zhang 23636b5c08fSOded Gabbay void *gtt_mem; 23736b5c08fSOded Gabbay uint64_t gtt_start_gpu_addr; 23836b5c08fSOded Gabbay void *gtt_start_cpu_ptr; 23936b5c08fSOded Gabbay void *gtt_sa_bitmap; 24036b5c08fSOded Gabbay struct mutex gtt_sa_lock; 24136b5c08fSOded Gabbay unsigned int gtt_sa_chunk_size; 24236b5c08fSOded Gabbay unsigned int gtt_sa_num_of_chunks; 24336b5c08fSOded Gabbay 2442249d558SAndrew Lewycky /* Interrupts */ 24504ad47bdSAndres Rodriguez struct kfifo ih_fifo; 24648e876a2SAndres Rodriguez struct workqueue_struct *ih_wq; 2472249d558SAndrew Lewycky struct work_struct interrupt_work; 2482249d558SAndrew Lewycky spinlock_t interrupt_lock; 2492249d558SAndrew Lewycky 250ed6e6a34SBen Goz /* QCM Device instance */ 251ed6e6a34SBen Goz struct device_queue_manager *dqm; 2524a488a7aSOded Gabbay 253ed6e6a34SBen Goz bool init_complete; 2542249d558SAndrew Lewycky /* 2552249d558SAndrew Lewycky * Interrupts of interest to KFD are copied 2562249d558SAndrew Lewycky * from the HW ring into a SW ring. 2572249d558SAndrew Lewycky */ 2582249d558SAndrew Lewycky bool interrupts_active; 259fbeb661bSYair Shachar 260fbeb661bSYair Shachar /* Debug manager */ 261fbeb661bSYair Shachar struct kfd_dbgmgr *dbgmgr; 262373d7080SFelix Kuehling 263a99c6d4fSFelix Kuehling /* Maximum process number mapped to HW scheduler */ 264a99c6d4fSFelix Kuehling unsigned int max_proc_per_quantum; 265a99c6d4fSFelix Kuehling 266373d7080SFelix Kuehling /* CWSR */ 267373d7080SFelix Kuehling bool cwsr_enabled; 268373d7080SFelix Kuehling const void *cwsr_isa; 269373d7080SFelix Kuehling unsigned int cwsr_isa_size; 2704a488a7aSOded Gabbay }; 2714a488a7aSOded Gabbay 2724a488a7aSOded Gabbay /* KGD2KFD callbacks */ 2734a488a7aSOded Gabbay void kgd2kfd_exit(void); 274cea405b1SXihan Zhang struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, 275cea405b1SXihan Zhang struct pci_dev *pdev, const struct kfd2kgd_calls *f2g); 2764a488a7aSOded Gabbay bool kgd2kfd_device_init(struct kfd_dev *kfd, 2774a488a7aSOded Gabbay const struct kgd2kfd_shared_resources *gpu_resources); 2784a488a7aSOded Gabbay void kgd2kfd_device_exit(struct kfd_dev *kfd); 2794a488a7aSOded Gabbay 28019f6d2a6SOded Gabbay enum kfd_mempool { 28119f6d2a6SOded Gabbay KFD_MEMPOOL_SYSTEM_CACHEABLE = 1, 28219f6d2a6SOded Gabbay KFD_MEMPOOL_SYSTEM_WRITECOMBINE = 2, 28319f6d2a6SOded Gabbay KFD_MEMPOOL_FRAMEBUFFER = 3, 28419f6d2a6SOded Gabbay }; 28519f6d2a6SOded Gabbay 2864a488a7aSOded Gabbay /* Character device interface */ 2874a488a7aSOded Gabbay int kfd_chardev_init(void); 2884a488a7aSOded Gabbay void kfd_chardev_exit(void); 2894a488a7aSOded Gabbay struct device *kfd_chardev(void); 2904a488a7aSOded Gabbay 291241f24f8SBen Goz /** 2927da2bcf8SYong Zhao * enum kfd_unmap_queues_filter 293241f24f8SBen Goz * 2947da2bcf8SYong Zhao * @KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE: Preempts single queue. 295241f24f8SBen Goz * 2967da2bcf8SYong Zhao * @KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES: Preempts all queues in the 297241f24f8SBen Goz * running queues list. 298241f24f8SBen Goz * 2997da2bcf8SYong Zhao * @KFD_UNMAP_QUEUES_FILTER_BY_PASID: Preempts queues that belongs to 300241f24f8SBen Goz * specific process. 301241f24f8SBen Goz * 302241f24f8SBen Goz */ 3037da2bcf8SYong Zhao enum kfd_unmap_queues_filter { 3047da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE, 3057da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES, 3067da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 3077da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_BY_PASID 308241f24f8SBen Goz }; 30919f6d2a6SOded Gabbay 310ed8aab45SBen Goz /** 311ed8aab45SBen Goz * enum kfd_queue_type 312ed8aab45SBen Goz * 313ed8aab45SBen Goz * @KFD_QUEUE_TYPE_COMPUTE: Regular user mode queue type. 314ed8aab45SBen Goz * 315ed8aab45SBen Goz * @KFD_QUEUE_TYPE_SDMA: Sdma user mode queue type. 316ed8aab45SBen Goz * 317ed8aab45SBen Goz * @KFD_QUEUE_TYPE_HIQ: HIQ queue type. 318ed8aab45SBen Goz * 319ed8aab45SBen Goz * @KFD_QUEUE_TYPE_DIQ: DIQ queue type. 320ed8aab45SBen Goz */ 321ed8aab45SBen Goz enum kfd_queue_type { 322ed8aab45SBen Goz KFD_QUEUE_TYPE_COMPUTE, 323ed8aab45SBen Goz KFD_QUEUE_TYPE_SDMA, 324ed8aab45SBen Goz KFD_QUEUE_TYPE_HIQ, 325ed8aab45SBen Goz KFD_QUEUE_TYPE_DIQ 326ed8aab45SBen Goz }; 327ed8aab45SBen Goz 3286e99df57SBen Goz enum kfd_queue_format { 3296e99df57SBen Goz KFD_QUEUE_FORMAT_PM4, 3306e99df57SBen Goz KFD_QUEUE_FORMAT_AQL 3316e99df57SBen Goz }; 3326e99df57SBen Goz 333ed8aab45SBen Goz /** 334ed8aab45SBen Goz * struct queue_properties 335ed8aab45SBen Goz * 336ed8aab45SBen Goz * @type: The queue type. 337ed8aab45SBen Goz * 338ed8aab45SBen Goz * @queue_id: Queue identifier. 339ed8aab45SBen Goz * 340ed8aab45SBen Goz * @queue_address: Queue ring buffer address. 341ed8aab45SBen Goz * 342ed8aab45SBen Goz * @queue_size: Queue ring buffer size. 343ed8aab45SBen Goz * 344ed8aab45SBen Goz * @priority: Defines the queue priority relative to other queues in the 345ed8aab45SBen Goz * process. 346ed8aab45SBen Goz * This is just an indication and HW scheduling may override the priority as 347ed8aab45SBen Goz * necessary while keeping the relative prioritization. 348ed8aab45SBen Goz * the priority granularity is from 0 to f which f is the highest priority. 349ed8aab45SBen Goz * currently all queues are initialized with the highest priority. 350ed8aab45SBen Goz * 351ed8aab45SBen Goz * @queue_percent: This field is partially implemented and currently a zero in 352ed8aab45SBen Goz * this field defines that the queue is non active. 353ed8aab45SBen Goz * 354ed8aab45SBen Goz * @read_ptr: User space address which points to the number of dwords the 355ed8aab45SBen Goz * cp read from the ring buffer. This field updates automatically by the H/W. 356ed8aab45SBen Goz * 357ed8aab45SBen Goz * @write_ptr: Defines the number of dwords written to the ring buffer. 358ed8aab45SBen Goz * 359ed8aab45SBen Goz * @doorbell_ptr: This field aim is to notify the H/W of new packet written to 3608eabaf54SKent Russell * the queue ring buffer. This field should be similar to write_ptr and the 3618eabaf54SKent Russell * user should update this field after he updated the write_ptr. 362ed8aab45SBen Goz * 363ed8aab45SBen Goz * @doorbell_off: The doorbell offset in the doorbell pci-bar. 364ed8aab45SBen Goz * 3658eabaf54SKent Russell * @is_interop: Defines if this is a interop queue. Interop queue means that 3668eabaf54SKent Russell * the queue can access both graphics and compute resources. 367ed8aab45SBen Goz * 36826103436SFelix Kuehling * @is_evicted: Defines if the queue is evicted. Only active queues 36926103436SFelix Kuehling * are evicted, rendering them inactive. 37026103436SFelix Kuehling * 37126103436SFelix Kuehling * @is_active: Defines if the queue is active or not. @is_active and 37226103436SFelix Kuehling * @is_evicted are protected by the DQM lock. 373ed8aab45SBen Goz * 374ed8aab45SBen Goz * @vmid: If the scheduling mode is no cp scheduling the field defines the vmid 375ed8aab45SBen Goz * of the queue. 376ed8aab45SBen Goz * 377ed8aab45SBen Goz * This structure represents the queue properties for each queue no matter if 378ed8aab45SBen Goz * it's user mode or kernel mode queue. 379ed8aab45SBen Goz * 380ed8aab45SBen Goz */ 381ed8aab45SBen Goz struct queue_properties { 382ed8aab45SBen Goz enum kfd_queue_type type; 3836e99df57SBen Goz enum kfd_queue_format format; 384ed8aab45SBen Goz unsigned int queue_id; 385ed8aab45SBen Goz uint64_t queue_address; 386ed8aab45SBen Goz uint64_t queue_size; 387ed8aab45SBen Goz uint32_t priority; 388ed8aab45SBen Goz uint32_t queue_percent; 389ed8aab45SBen Goz uint32_t *read_ptr; 390ed8aab45SBen Goz uint32_t *write_ptr; 391ada2b29cSFelix Kuehling void __iomem *doorbell_ptr; 392ed8aab45SBen Goz uint32_t doorbell_off; 393ed8aab45SBen Goz bool is_interop; 39426103436SFelix Kuehling bool is_evicted; 395ed8aab45SBen Goz bool is_active; 396ed8aab45SBen Goz /* Not relevant for user mode queues in cp scheduling */ 397ed8aab45SBen Goz unsigned int vmid; 39877669eb8SBen Goz /* Relevant only for sdma queues*/ 39977669eb8SBen Goz uint32_t sdma_engine_id; 40077669eb8SBen Goz uint32_t sdma_queue_id; 40177669eb8SBen Goz uint32_t sdma_vm_addr; 402ff3d04a1SBen Goz /* Relevant only for VI */ 403ff3d04a1SBen Goz uint64_t eop_ring_buffer_address; 404ff3d04a1SBen Goz uint32_t eop_ring_buffer_size; 405ff3d04a1SBen Goz uint64_t ctx_save_restore_area_address; 406ff3d04a1SBen Goz uint32_t ctx_save_restore_area_size; 407373d7080SFelix Kuehling uint32_t ctl_stack_size; 408373d7080SFelix Kuehling uint64_t tba_addr; 409373d7080SFelix Kuehling uint64_t tma_addr; 410ed8aab45SBen Goz }; 411ed8aab45SBen Goz 412ed8aab45SBen Goz /** 413ed8aab45SBen Goz * struct queue 414ed8aab45SBen Goz * 415ed8aab45SBen Goz * @list: Queue linked list. 416ed8aab45SBen Goz * 417ed8aab45SBen Goz * @mqd: The queue MQD. 418ed8aab45SBen Goz * 419ed8aab45SBen Goz * @mqd_mem_obj: The MQD local gpu memory object. 420ed8aab45SBen Goz * 421ed8aab45SBen Goz * @gart_mqd_addr: The MQD gart mc address. 422ed8aab45SBen Goz * 423ed8aab45SBen Goz * @properties: The queue properties. 424ed8aab45SBen Goz * 425ed8aab45SBen Goz * @mec: Used only in no cp scheduling mode and identifies to micro engine id 426ed8aab45SBen Goz * that the queue should be execute on. 427ed8aab45SBen Goz * 4288eabaf54SKent Russell * @pipe: Used only in no cp scheduling mode and identifies the queue's pipe 4298eabaf54SKent Russell * id. 430ed8aab45SBen Goz * 431ed8aab45SBen Goz * @queue: Used only in no cp scheduliong mode and identifies the queue's slot. 432ed8aab45SBen Goz * 433ed8aab45SBen Goz * @process: The kfd process that created this queue. 434ed8aab45SBen Goz * 435ed8aab45SBen Goz * @device: The kfd device that created this queue. 436ed8aab45SBen Goz * 437ed8aab45SBen Goz * This structure represents user mode compute queues. 438ed8aab45SBen Goz * It contains all the necessary data to handle such queues. 439ed8aab45SBen Goz * 440ed8aab45SBen Goz */ 441ed8aab45SBen Goz 442ed8aab45SBen Goz struct queue { 443ed8aab45SBen Goz struct list_head list; 444ed8aab45SBen Goz void *mqd; 445ed8aab45SBen Goz struct kfd_mem_obj *mqd_mem_obj; 446ed8aab45SBen Goz uint64_t gart_mqd_addr; 447ed8aab45SBen Goz struct queue_properties properties; 448ed8aab45SBen Goz 449ed8aab45SBen Goz uint32_t mec; 450ed8aab45SBen Goz uint32_t pipe; 451ed8aab45SBen Goz uint32_t queue; 452ed8aab45SBen Goz 45377669eb8SBen Goz unsigned int sdma_id; 454ef568db7SFelix Kuehling unsigned int doorbell_id; 45577669eb8SBen Goz 456ed8aab45SBen Goz struct kfd_process *process; 457ed8aab45SBen Goz struct kfd_dev *device; 458ed8aab45SBen Goz }; 459ed8aab45SBen Goz 4606e99df57SBen Goz /* 4616e99df57SBen Goz * Please read the kfd_mqd_manager.h description. 4626e99df57SBen Goz */ 4636e99df57SBen Goz enum KFD_MQD_TYPE { 46485d258f9SBen Goz KFD_MQD_TYPE_COMPUTE = 0, /* for no cp scheduling */ 46585d258f9SBen Goz KFD_MQD_TYPE_HIQ, /* for hiq */ 46685d258f9SBen Goz KFD_MQD_TYPE_CP, /* for cp queues and diq */ 46785d258f9SBen Goz KFD_MQD_TYPE_SDMA, /* for sdma queues */ 4686e99df57SBen Goz KFD_MQD_TYPE_MAX 4696e99df57SBen Goz }; 4706e99df57SBen Goz 471241f24f8SBen Goz struct scheduling_resources { 472241f24f8SBen Goz unsigned int vmid_mask; 473241f24f8SBen Goz enum kfd_queue_type type; 474241f24f8SBen Goz uint64_t queue_mask; 475241f24f8SBen Goz uint64_t gws_mask; 476241f24f8SBen Goz uint32_t oac_mask; 477241f24f8SBen Goz uint32_t gds_heap_base; 478241f24f8SBen Goz uint32_t gds_heap_size; 479241f24f8SBen Goz }; 480241f24f8SBen Goz 481241f24f8SBen Goz struct process_queue_manager { 482241f24f8SBen Goz /* data */ 483241f24f8SBen Goz struct kfd_process *process; 484241f24f8SBen Goz struct list_head queues; 485241f24f8SBen Goz unsigned long *queue_slot_bitmap; 486241f24f8SBen Goz }; 487241f24f8SBen Goz 488241f24f8SBen Goz struct qcm_process_device { 489241f24f8SBen Goz /* The Device Queue Manager that owns this data */ 490241f24f8SBen Goz struct device_queue_manager *dqm; 491241f24f8SBen Goz struct process_queue_manager *pqm; 492241f24f8SBen Goz /* Queues list */ 493241f24f8SBen Goz struct list_head queues_list; 494241f24f8SBen Goz struct list_head priv_queue_list; 495241f24f8SBen Goz 496241f24f8SBen Goz unsigned int queue_count; 497241f24f8SBen Goz unsigned int vmid; 498241f24f8SBen Goz bool is_debug; 49926103436SFelix Kuehling unsigned int evicted; /* eviction counter, 0=active */ 5009fd3f1bfSFelix Kuehling 5019fd3f1bfSFelix Kuehling /* This flag tells if we should reset all wavefronts on 5029fd3f1bfSFelix Kuehling * process termination 5039fd3f1bfSFelix Kuehling */ 5049fd3f1bfSFelix Kuehling bool reset_wavefronts; 5059fd3f1bfSFelix Kuehling 506241f24f8SBen Goz /* 507241f24f8SBen Goz * All the memory management data should be here too 508241f24f8SBen Goz */ 509241f24f8SBen Goz uint64_t gds_context_area; 510241f24f8SBen Goz uint32_t sh_mem_config; 511241f24f8SBen Goz uint32_t sh_mem_bases; 512241f24f8SBen Goz uint32_t sh_mem_ape1_base; 513241f24f8SBen Goz uint32_t sh_mem_ape1_limit; 514241f24f8SBen Goz uint32_t page_table_base; 515241f24f8SBen Goz uint32_t gds_size; 516241f24f8SBen Goz uint32_t num_gws; 517241f24f8SBen Goz uint32_t num_oac; 5186a1c9510SMoses Reuben uint32_t sh_hidden_private_base; 519373d7080SFelix Kuehling 520373d7080SFelix Kuehling /* CWSR memory */ 521373d7080SFelix Kuehling void *cwsr_kaddr; 522d01994c2SFelix Kuehling uint64_t cwsr_base; 523373d7080SFelix Kuehling uint64_t tba_addr; 524373d7080SFelix Kuehling uint64_t tma_addr; 525d01994c2SFelix Kuehling 526d01994c2SFelix Kuehling /* IB memory */ 527d01994c2SFelix Kuehling uint64_t ib_base; 528552764b6SFelix Kuehling void *ib_kaddr; 529ef568db7SFelix Kuehling 530ef568db7SFelix Kuehling /* doorbell resources per process per device */ 531ef568db7SFelix Kuehling unsigned long *doorbell_bitmap; 532241f24f8SBen Goz }; 533241f24f8SBen Goz 53426103436SFelix Kuehling /* KFD Memory Eviction */ 53526103436SFelix Kuehling 53626103436SFelix Kuehling /* Approx. wait time before attempting to restore evicted BOs */ 53726103436SFelix Kuehling #define PROCESS_RESTORE_TIME_MS 100 53826103436SFelix Kuehling /* Approx. back off time if restore fails due to lack of memory */ 53926103436SFelix Kuehling #define PROCESS_BACK_OFF_TIME_MS 100 54026103436SFelix Kuehling /* Approx. time before evicting the process again */ 54126103436SFelix Kuehling #define PROCESS_ACTIVE_TIME_MS 10 54226103436SFelix Kuehling 5436b95e797SFelix Kuehling int kgd2kfd_quiesce_mm(struct mm_struct *mm); 5446b95e797SFelix Kuehling int kgd2kfd_resume_mm(struct mm_struct *mm); 54526103436SFelix Kuehling int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm, 54626103436SFelix Kuehling struct dma_fence *fence); 547733fa1f7SYong Zhao 5485ec7e028SFelix Kuehling /* 8 byte handle containing GPU ID in the most significant 4 bytes and 5495ec7e028SFelix Kuehling * idr_handle in the least significant 4 bytes 5505ec7e028SFelix Kuehling */ 5515ec7e028SFelix Kuehling #define MAKE_HANDLE(gpu_id, idr_handle) \ 5525ec7e028SFelix Kuehling (((uint64_t)(gpu_id) << 32) + idr_handle) 5535ec7e028SFelix Kuehling #define GET_GPU_ID(handle) (handle >> 32) 5545ec7e028SFelix Kuehling #define GET_IDR_HANDLE(handle) (handle & 0xFFFFFFFF) 5555ec7e028SFelix Kuehling 556733fa1f7SYong Zhao enum kfd_pdd_bound { 557733fa1f7SYong Zhao PDD_UNBOUND = 0, 558733fa1f7SYong Zhao PDD_BOUND, 559733fa1f7SYong Zhao PDD_BOUND_SUSPENDED, 560733fa1f7SYong Zhao }; 561733fa1f7SYong Zhao 56219f6d2a6SOded Gabbay /* Data that is per-process-per device. */ 56319f6d2a6SOded Gabbay struct kfd_process_device { 56419f6d2a6SOded Gabbay /* 56519f6d2a6SOded Gabbay * List of all per-device data for a process. 56619f6d2a6SOded Gabbay * Starts from kfd_process.per_device_data. 56719f6d2a6SOded Gabbay */ 56819f6d2a6SOded Gabbay struct list_head per_device_list; 56919f6d2a6SOded Gabbay 57019f6d2a6SOded Gabbay /* The device that owns this data. */ 57119f6d2a6SOded Gabbay struct kfd_dev *dev; 57219f6d2a6SOded Gabbay 5739fd3f1bfSFelix Kuehling /* The process that owns this kfd_process_device. */ 5749fd3f1bfSFelix Kuehling struct kfd_process *process; 57519f6d2a6SOded Gabbay 57645102048SBen Goz /* per-process-per device QCM data structure */ 57745102048SBen Goz struct qcm_process_device qpd; 57845102048SBen Goz 57919f6d2a6SOded Gabbay /*Apertures*/ 58019f6d2a6SOded Gabbay uint64_t lds_base; 58119f6d2a6SOded Gabbay uint64_t lds_limit; 58219f6d2a6SOded Gabbay uint64_t gpuvm_base; 58319f6d2a6SOded Gabbay uint64_t gpuvm_limit; 58419f6d2a6SOded Gabbay uint64_t scratch_base; 58519f6d2a6SOded Gabbay uint64_t scratch_limit; 58619f6d2a6SOded Gabbay 587403575c4SFelix Kuehling /* VM context for GPUVM allocations */ 588b84394e2SFelix Kuehling struct file *drm_file; 589403575c4SFelix Kuehling void *vm; 590403575c4SFelix Kuehling 59152b29d73SFelix Kuehling /* GPUVM allocations storage */ 59252b29d73SFelix Kuehling struct idr alloc_idr; 59352b29d73SFelix Kuehling 5949fd3f1bfSFelix Kuehling /* Flag used to tell the pdd has dequeued from the dqm. 5959fd3f1bfSFelix Kuehling * This is used to prevent dev->dqm->ops.process_termination() from 5969fd3f1bfSFelix Kuehling * being called twice when it is already called in IOMMU callback 5979fd3f1bfSFelix Kuehling * function. 598a82918f1SBen Goz */ 5999fd3f1bfSFelix Kuehling bool already_dequeued; 60064d1c3a4SFelix Kuehling 60164d1c3a4SFelix Kuehling /* Is this process/pasid bound to this device? (amd_iommu_bind_pasid) */ 60264d1c3a4SFelix Kuehling enum kfd_pdd_bound bound; 60319f6d2a6SOded Gabbay }; 60419f6d2a6SOded Gabbay 60552a5fdceSAlexey Skidanov #define qpd_to_pdd(x) container_of(x, struct kfd_process_device, qpd) 60652a5fdceSAlexey Skidanov 6074a488a7aSOded Gabbay /* Process data */ 6084a488a7aSOded Gabbay struct kfd_process { 60919f6d2a6SOded Gabbay /* 61019f6d2a6SOded Gabbay * kfd_process are stored in an mm_struct*->kfd_process* 61119f6d2a6SOded Gabbay * hash table (kfd_processes in kfd_process.c) 61219f6d2a6SOded Gabbay */ 61319f6d2a6SOded Gabbay struct hlist_node kfd_processes; 61419f6d2a6SOded Gabbay 6159b56bb11SFelix Kuehling /* 6169b56bb11SFelix Kuehling * Opaque pointer to mm_struct. We don't hold a reference to 6179b56bb11SFelix Kuehling * it so it should never be dereferenced from here. This is 6189b56bb11SFelix Kuehling * only used for looking up processes by their mm. 6199b56bb11SFelix Kuehling */ 6209b56bb11SFelix Kuehling void *mm; 62119f6d2a6SOded Gabbay 6225ce10687SFelix Kuehling struct kref ref; 6235ce10687SFelix Kuehling struct work_struct release_work; 6245ce10687SFelix Kuehling 62519f6d2a6SOded Gabbay struct mutex mutex; 62619f6d2a6SOded Gabbay 62719f6d2a6SOded Gabbay /* 62819f6d2a6SOded Gabbay * In any process, the thread that started main() is the lead 62919f6d2a6SOded Gabbay * thread and outlives the rest. 63019f6d2a6SOded Gabbay * It is here because amd_iommu_bind_pasid wants a task_struct. 631894a8293SFelix Kuehling * It can also be used for safely getting a reference to the 632894a8293SFelix Kuehling * mm_struct of the process. 63319f6d2a6SOded Gabbay */ 63419f6d2a6SOded Gabbay struct task_struct *lead_thread; 63519f6d2a6SOded Gabbay 63619f6d2a6SOded Gabbay /* We want to receive a notification when the mm_struct is destroyed */ 63719f6d2a6SOded Gabbay struct mmu_notifier mmu_notifier; 63819f6d2a6SOded Gabbay 63919f6d2a6SOded Gabbay /* Use for delayed freeing of kfd_process structure */ 64019f6d2a6SOded Gabbay struct rcu_head rcu; 64119f6d2a6SOded Gabbay 64219f6d2a6SOded Gabbay unsigned int pasid; 643a91e70e3SFelix Kuehling unsigned int doorbell_index; 64419f6d2a6SOded Gabbay 64519f6d2a6SOded Gabbay /* 64619f6d2a6SOded Gabbay * List of kfd_process_device structures, 64719f6d2a6SOded Gabbay * one for each device the process is using. 64819f6d2a6SOded Gabbay */ 64919f6d2a6SOded Gabbay struct list_head per_device_data; 65019f6d2a6SOded Gabbay 65145102048SBen Goz struct process_queue_manager pqm; 65245102048SBen Goz 65319f6d2a6SOded Gabbay /*Is the user space process 32 bit?*/ 65419f6d2a6SOded Gabbay bool is_32bit_user_mode; 655f3a39818SAndrew Lewycky 656f3a39818SAndrew Lewycky /* Event-related data */ 657f3a39818SAndrew Lewycky struct mutex event_mutex; 658482f0777SFelix Kuehling /* Event ID allocator and lookup */ 659482f0777SFelix Kuehling struct idr event_idr; 66050cb7dd9SFelix Kuehling /* Event page */ 66150cb7dd9SFelix Kuehling struct kfd_signal_page *signal_page; 662b9a5d0a5SFelix Kuehling size_t signal_mapped_size; 663f3a39818SAndrew Lewycky size_t signal_event_count; 664c986169fSFelix Kuehling bool signal_event_limit_reached; 665403575c4SFelix Kuehling 666403575c4SFelix Kuehling /* Information used for memory eviction */ 667403575c4SFelix Kuehling void *kgd_process_info; 668403575c4SFelix Kuehling /* Eviction fence that is attached to all the BOs of this process. The 669403575c4SFelix Kuehling * fence will be triggered during eviction and new one will be created 670403575c4SFelix Kuehling * during restore 671403575c4SFelix Kuehling */ 672403575c4SFelix Kuehling struct dma_fence *ef; 67326103436SFelix Kuehling 67426103436SFelix Kuehling /* Work items for evicting and restoring BOs */ 67526103436SFelix Kuehling struct delayed_work eviction_work; 67626103436SFelix Kuehling struct delayed_work restore_work; 67726103436SFelix Kuehling /* seqno of the last scheduled eviction */ 67826103436SFelix Kuehling unsigned int last_eviction_seqno; 67926103436SFelix Kuehling /* Approx. the last timestamp (in jiffies) when the process was 68026103436SFelix Kuehling * restored after an eviction 68126103436SFelix Kuehling */ 68226103436SFelix Kuehling unsigned long last_restore_timestamp; 6834a488a7aSOded Gabbay }; 6844a488a7aSOded Gabbay 68564d1c3a4SFelix Kuehling #define KFD_PROCESS_TABLE_SIZE 5 /* bits: 32 entries */ 68664d1c3a4SFelix Kuehling extern DECLARE_HASHTABLE(kfd_processes_table, KFD_PROCESS_TABLE_SIZE); 68764d1c3a4SFelix Kuehling extern struct srcu_struct kfd_processes_srcu; 68864d1c3a4SFelix Kuehling 68976baee6cSOded Gabbay /** 69076baee6cSOded Gabbay * Ioctl function type. 69176baee6cSOded Gabbay * 69276baee6cSOded Gabbay * \param filep pointer to file structure. 69376baee6cSOded Gabbay * \param p amdkfd process pointer. 69476baee6cSOded Gabbay * \param data pointer to arg that was copied from user. 69576baee6cSOded Gabbay */ 69676baee6cSOded Gabbay typedef int amdkfd_ioctl_t(struct file *filep, struct kfd_process *p, 69776baee6cSOded Gabbay void *data); 69876baee6cSOded Gabbay 69976baee6cSOded Gabbay struct amdkfd_ioctl_desc { 70076baee6cSOded Gabbay unsigned int cmd; 70176baee6cSOded Gabbay int flags; 70276baee6cSOded Gabbay amdkfd_ioctl_t *func; 70376baee6cSOded Gabbay unsigned int cmd_drv; 70476baee6cSOded Gabbay const char *name; 70576baee6cSOded Gabbay }; 70676baee6cSOded Gabbay 7071679ae8fSFelix Kuehling int kfd_process_create_wq(void); 70819f6d2a6SOded Gabbay void kfd_process_destroy_wq(void); 709373d7080SFelix Kuehling struct kfd_process *kfd_create_process(struct file *filep); 71019f6d2a6SOded Gabbay struct kfd_process *kfd_get_process(const struct task_struct *); 711f3a39818SAndrew Lewycky struct kfd_process *kfd_lookup_process_by_pasid(unsigned int pasid); 71226103436SFelix Kuehling struct kfd_process *kfd_lookup_process_by_mm(const struct mm_struct *mm); 713abb208a8SFelix Kuehling void kfd_unref_process(struct kfd_process *p); 7146b95e797SFelix Kuehling int kfd_process_evict_queues(struct kfd_process *p); 7156b95e797SFelix Kuehling int kfd_process_restore_queues(struct kfd_process *p); 71626103436SFelix Kuehling void kfd_suspend_all_processes(void); 71726103436SFelix Kuehling int kfd_resume_all_processes(void); 71819f6d2a6SOded Gabbay 719b84394e2SFelix Kuehling int kfd_process_device_init_vm(struct kfd_process_device *pdd, 720b84394e2SFelix Kuehling struct file *drm_file); 72164c7f8cfSBen Goz struct kfd_process_device *kfd_bind_process_to_device(struct kfd_dev *dev, 72264c7f8cfSBen Goz struct kfd_process *p); 72319f6d2a6SOded Gabbay struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev, 724093c7d8cSAlexey Skidanov struct kfd_process *p); 725093c7d8cSAlexey Skidanov struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, 726093c7d8cSAlexey Skidanov struct kfd_process *p); 72719f6d2a6SOded Gabbay 728df03ef93SHarish Kasiviswanathan int kfd_reserved_mem_mmap(struct kfd_dev *dev, struct kfd_process *process, 729373d7080SFelix Kuehling struct vm_area_struct *vma); 730373d7080SFelix Kuehling 73152b29d73SFelix Kuehling /* KFD process API for creating and translating handles */ 73252b29d73SFelix Kuehling int kfd_process_device_create_obj_handle(struct kfd_process_device *pdd, 73352b29d73SFelix Kuehling void *mem); 73452b29d73SFelix Kuehling void *kfd_process_device_translate_handle(struct kfd_process_device *p, 73552b29d73SFelix Kuehling int handle); 73652b29d73SFelix Kuehling void kfd_process_device_remove_obj_handle(struct kfd_process_device *pdd, 73752b29d73SFelix Kuehling int handle); 73852b29d73SFelix Kuehling 739775921edSAlexey Skidanov /* Process device data iterator */ 7408eabaf54SKent Russell struct kfd_process_device *kfd_get_first_process_device_data( 7418eabaf54SKent Russell struct kfd_process *p); 7428eabaf54SKent Russell struct kfd_process_device *kfd_get_next_process_device_data( 7438eabaf54SKent Russell struct kfd_process *p, 744775921edSAlexey Skidanov struct kfd_process_device *pdd); 745775921edSAlexey Skidanov bool kfd_has_process_device_data(struct kfd_process *p); 746775921edSAlexey Skidanov 74719f6d2a6SOded Gabbay /* PASIDs */ 74819f6d2a6SOded Gabbay int kfd_pasid_init(void); 74919f6d2a6SOded Gabbay void kfd_pasid_exit(void); 75019f6d2a6SOded Gabbay bool kfd_set_pasid_limit(unsigned int new_limit); 75119f6d2a6SOded Gabbay unsigned int kfd_get_pasid_limit(void); 75219f6d2a6SOded Gabbay unsigned int kfd_pasid_alloc(void); 75319f6d2a6SOded Gabbay void kfd_pasid_free(unsigned int pasid); 75419f6d2a6SOded Gabbay 75519f6d2a6SOded Gabbay /* Doorbells */ 756ef568db7SFelix Kuehling size_t kfd_doorbell_process_slice(struct kfd_dev *kfd); 757735df2baSFelix Kuehling int kfd_doorbell_init(struct kfd_dev *kfd); 758735df2baSFelix Kuehling void kfd_doorbell_fini(struct kfd_dev *kfd); 759df03ef93SHarish Kasiviswanathan int kfd_doorbell_mmap(struct kfd_dev *dev, struct kfd_process *process, 760df03ef93SHarish Kasiviswanathan struct vm_area_struct *vma); 761ada2b29cSFelix Kuehling void __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, 76219f6d2a6SOded Gabbay unsigned int *doorbell_off); 76319f6d2a6SOded Gabbay void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr); 76419f6d2a6SOded Gabbay u32 read_kernel_doorbell(u32 __iomem *db); 765ada2b29cSFelix Kuehling void write_kernel_doorbell(void __iomem *db, u32 value); 766ef568db7SFelix Kuehling unsigned int kfd_doorbell_id_to_offset(struct kfd_dev *kfd, 76719f6d2a6SOded Gabbay struct kfd_process *process, 768ef568db7SFelix Kuehling unsigned int doorbell_id); 769a91e70e3SFelix Kuehling phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev, 770a91e70e3SFelix Kuehling struct kfd_process *process); 771a91e70e3SFelix Kuehling int kfd_alloc_process_doorbells(struct kfd_process *process); 772a91e70e3SFelix Kuehling void kfd_free_process_doorbells(struct kfd_process *process); 77319f6d2a6SOded Gabbay 7746e81090bSOded Gabbay /* GTT Sub-Allocator */ 7756e81090bSOded Gabbay 7766e81090bSOded Gabbay int kfd_gtt_sa_allocate(struct kfd_dev *kfd, unsigned int size, 7776e81090bSOded Gabbay struct kfd_mem_obj **mem_obj); 7786e81090bSOded Gabbay 7796e81090bSOded Gabbay int kfd_gtt_sa_free(struct kfd_dev *kfd, struct kfd_mem_obj *mem_obj); 7806e81090bSOded Gabbay 7814a488a7aSOded Gabbay extern struct device *kfd_device; 7824a488a7aSOded Gabbay 7835b5c4e40SEvgeny Pinchuk /* Topology */ 7845b5c4e40SEvgeny Pinchuk int kfd_topology_init(void); 7855b5c4e40SEvgeny Pinchuk void kfd_topology_shutdown(void); 7865b5c4e40SEvgeny Pinchuk int kfd_topology_add_device(struct kfd_dev *gpu); 7875b5c4e40SEvgeny Pinchuk int kfd_topology_remove_device(struct kfd_dev *gpu); 7883a87177eSHarish Kasiviswanathan struct kfd_topology_device *kfd_topology_device_by_proximity_domain( 7893a87177eSHarish Kasiviswanathan uint32_t proximity_domain); 7905b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_id(uint32_t gpu_id); 7915b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev); 7926d82eb0eSHarish Kasiviswanathan int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_dev **kdev); 793520b8fb7SFelix Kuehling int kfd_numa_node_to_apic_id(int numa_node_id); 7945b5c4e40SEvgeny Pinchuk 7954a488a7aSOded Gabbay /* Interrupts */ 7962249d558SAndrew Lewycky int kfd_interrupt_init(struct kfd_dev *dev); 7972249d558SAndrew Lewycky void kfd_interrupt_exit(struct kfd_dev *dev); 798b3f5e6b4SAndrew Lewycky void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry); 7992249d558SAndrew Lewycky bool enqueue_ih_ring_entry(struct kfd_dev *kfd, const void *ih_ring_entry); 8002249d558SAndrew Lewycky bool interrupt_is_wanted(struct kfd_dev *dev, const uint32_t *ih_ring_entry); 8014a488a7aSOded Gabbay 8024a488a7aSOded Gabbay /* Power Management */ 803b3f5e6b4SAndrew Lewycky void kgd2kfd_suspend(struct kfd_dev *kfd); 804b3f5e6b4SAndrew Lewycky int kgd2kfd_resume(struct kfd_dev *kfd); 8054a488a7aSOded Gabbay 80619f6d2a6SOded Gabbay /* amdkfd Apertures */ 80719f6d2a6SOded Gabbay int kfd_init_apertures(struct kfd_process *process); 80819f6d2a6SOded Gabbay 809ed6e6a34SBen Goz /* Queue Context Management */ 810e88a614cSEdward O'Callaghan int init_queue(struct queue **q, const struct queue_properties *properties); 811ed6e6a34SBen Goz void uninit_queue(struct queue *q); 81245102048SBen Goz void print_queue_properties(struct queue_properties *q); 813ed6e6a34SBen Goz void print_queue(struct queue *q); 814ed6e6a34SBen Goz 81564c7f8cfSBen Goz struct mqd_manager *mqd_manager_init(enum KFD_MQD_TYPE type, 81664c7f8cfSBen Goz struct kfd_dev *dev); 8174b8f589bSBen Goz struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type, 8184b8f589bSBen Goz struct kfd_dev *dev); 819ee04955aSFelix Kuehling struct mqd_manager *mqd_manager_init_cik_hawaii(enum KFD_MQD_TYPE type, 820ee04955aSFelix Kuehling struct kfd_dev *dev); 8214b8f589bSBen Goz struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type, 8224b8f589bSBen Goz struct kfd_dev *dev); 823ee04955aSFelix Kuehling struct mqd_manager *mqd_manager_init_vi_tonga(enum KFD_MQD_TYPE type, 824ee04955aSFelix Kuehling struct kfd_dev *dev); 82564c7f8cfSBen Goz struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev); 82664c7f8cfSBen Goz void device_queue_manager_uninit(struct device_queue_manager *dqm); 827241f24f8SBen Goz struct kernel_queue *kernel_queue_init(struct kfd_dev *dev, 828241f24f8SBen Goz enum kfd_queue_type type); 829241f24f8SBen Goz void kernel_queue_uninit(struct kernel_queue *kq); 830241f24f8SBen Goz 83145102048SBen Goz /* Process Queue Manager */ 83245102048SBen Goz struct process_queue_node { 83345102048SBen Goz struct queue *q; 83445102048SBen Goz struct kernel_queue *kq; 83545102048SBen Goz struct list_head process_queue_list; 83645102048SBen Goz }; 83745102048SBen Goz 8389fd3f1bfSFelix Kuehling void kfd_process_dequeue_from_device(struct kfd_process_device *pdd); 8399fd3f1bfSFelix Kuehling void kfd_process_dequeue_from_all_devices(struct kfd_process *p); 84045102048SBen Goz int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p); 84145102048SBen Goz void pqm_uninit(struct process_queue_manager *pqm); 84245102048SBen Goz int pqm_create_queue(struct process_queue_manager *pqm, 84345102048SBen Goz struct kfd_dev *dev, 84445102048SBen Goz struct file *f, 84545102048SBen Goz struct queue_properties *properties, 84645102048SBen Goz unsigned int *qid); 84745102048SBen Goz int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid); 84845102048SBen Goz int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid, 84945102048SBen Goz struct queue_properties *p); 850fbeb661bSYair Shachar struct kernel_queue *pqm_get_kernel_queue(struct process_queue_manager *pqm, 851fbeb661bSYair Shachar unsigned int qid); 85245102048SBen Goz 853788bf83dSYair Shachar int amdkfd_fence_wait_timeout(unsigned int *fence_addr, 854788bf83dSYair Shachar unsigned int fence_value, 8558c72c3d7SYong Zhao unsigned int timeout_ms); 856788bf83dSYair Shachar 857ed6e6a34SBen Goz /* Packet Manager */ 858ed6e6a34SBen Goz 85964c7f8cfSBen Goz #define KFD_FENCE_COMPLETED (100) 86064c7f8cfSBen Goz #define KFD_FENCE_INIT (10) 861241f24f8SBen Goz 862ed6e6a34SBen Goz struct packet_manager { 863ed6e6a34SBen Goz struct device_queue_manager *dqm; 864ed6e6a34SBen Goz struct kernel_queue *priv_queue; 865ed6e6a34SBen Goz struct mutex lock; 866ed6e6a34SBen Goz bool allocated; 867ed6e6a34SBen Goz struct kfd_mem_obj *ib_buffer_obj; 868851a645eSFelix Kuehling unsigned int ib_size_bytes; 869f6e27ff1SFelix Kuehling 870f6e27ff1SFelix Kuehling const struct packet_manager_funcs *pmf; 871ed6e6a34SBen Goz }; 872ed6e6a34SBen Goz 873f6e27ff1SFelix Kuehling struct packet_manager_funcs { 874f6e27ff1SFelix Kuehling /* Support ASIC-specific packet formats for PM4 packets */ 875f6e27ff1SFelix Kuehling int (*map_process)(struct packet_manager *pm, uint32_t *buffer, 876f6e27ff1SFelix Kuehling struct qcm_process_device *qpd); 877f6e27ff1SFelix Kuehling int (*runlist)(struct packet_manager *pm, uint32_t *buffer, 878f6e27ff1SFelix Kuehling uint64_t ib, size_t ib_size_in_dwords, bool chain); 879f6e27ff1SFelix Kuehling int (*set_resources)(struct packet_manager *pm, uint32_t *buffer, 880f6e27ff1SFelix Kuehling struct scheduling_resources *res); 881f6e27ff1SFelix Kuehling int (*map_queues)(struct packet_manager *pm, uint32_t *buffer, 882f6e27ff1SFelix Kuehling struct queue *q, bool is_static); 883f6e27ff1SFelix Kuehling int (*unmap_queues)(struct packet_manager *pm, uint32_t *buffer, 884f6e27ff1SFelix Kuehling enum kfd_queue_type type, 885f6e27ff1SFelix Kuehling enum kfd_unmap_queues_filter mode, 886f6e27ff1SFelix Kuehling uint32_t filter_param, bool reset, 887f6e27ff1SFelix Kuehling unsigned int sdma_engine); 888f6e27ff1SFelix Kuehling int (*query_status)(struct packet_manager *pm, uint32_t *buffer, 889f6e27ff1SFelix Kuehling uint64_t fence_address, uint32_t fence_value); 890f6e27ff1SFelix Kuehling int (*release_mem)(uint64_t gpu_addr, uint32_t *buffer); 891f6e27ff1SFelix Kuehling 892f6e27ff1SFelix Kuehling /* Packet sizes */ 893f6e27ff1SFelix Kuehling int map_process_size; 894f6e27ff1SFelix Kuehling int runlist_size; 895f6e27ff1SFelix Kuehling int set_resources_size; 896f6e27ff1SFelix Kuehling int map_queues_size; 897f6e27ff1SFelix Kuehling int unmap_queues_size; 898f6e27ff1SFelix Kuehling int query_status_size; 899f6e27ff1SFelix Kuehling int release_mem_size; 900f6e27ff1SFelix Kuehling }; 901f6e27ff1SFelix Kuehling 902f6e27ff1SFelix Kuehling extern const struct packet_manager_funcs kfd_vi_pm_funcs; 903f6e27ff1SFelix Kuehling 90464c7f8cfSBen Goz int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm); 90564c7f8cfSBen Goz void pm_uninit(struct packet_manager *pm); 90664c7f8cfSBen Goz int pm_send_set_resources(struct packet_manager *pm, 90764c7f8cfSBen Goz struct scheduling_resources *res); 90864c7f8cfSBen Goz int pm_send_runlist(struct packet_manager *pm, struct list_head *dqm_queues); 90964c7f8cfSBen Goz int pm_send_query_status(struct packet_manager *pm, uint64_t fence_address, 91064c7f8cfSBen Goz uint32_t fence_value); 91164c7f8cfSBen Goz 91264c7f8cfSBen Goz int pm_send_unmap_queue(struct packet_manager *pm, enum kfd_queue_type type, 9137da2bcf8SYong Zhao enum kfd_unmap_queues_filter mode, 91464c7f8cfSBen Goz uint32_t filter_param, bool reset, 91564c7f8cfSBen Goz unsigned int sdma_engine); 91664c7f8cfSBen Goz 917241f24f8SBen Goz void pm_release_ib(struct packet_manager *pm); 918241f24f8SBen Goz 91919f6d2a6SOded Gabbay uint64_t kfd_get_number_elems(struct kfd_dev *kfd); 92019f6d2a6SOded Gabbay 921f3a39818SAndrew Lewycky /* Events */ 922f3a39818SAndrew Lewycky extern const struct kfd_event_interrupt_class event_interrupt_class_cik; 923930c5ff4SAlexey Skidanov extern const struct kfd_device_global_init_class device_global_init_class_cik; 924f3a39818SAndrew Lewycky 925f3a39818SAndrew Lewycky void kfd_event_init_process(struct kfd_process *p); 926f3a39818SAndrew Lewycky void kfd_event_free_process(struct kfd_process *p); 927f3a39818SAndrew Lewycky int kfd_event_mmap(struct kfd_process *process, struct vm_area_struct *vma); 928f3a39818SAndrew Lewycky int kfd_wait_on_events(struct kfd_process *p, 92959d3e8beSAlexey Skidanov uint32_t num_events, void __user *data, 930f3a39818SAndrew Lewycky bool all, uint32_t user_timeout_ms, 931fdf0c833SFelix Kuehling uint32_t *wait_result); 932f3a39818SAndrew Lewycky void kfd_signal_event_interrupt(unsigned int pasid, uint32_t partial_id, 933f3a39818SAndrew Lewycky uint32_t valid_id_bits); 93459d3e8beSAlexey Skidanov void kfd_signal_iommu_event(struct kfd_dev *dev, 93559d3e8beSAlexey Skidanov unsigned int pasid, unsigned long address, 93659d3e8beSAlexey Skidanov bool is_write_requested, bool is_execute_requested); 937930c5ff4SAlexey Skidanov void kfd_signal_hw_exception_event(unsigned int pasid); 938f3a39818SAndrew Lewycky int kfd_set_event(struct kfd_process *p, uint32_t event_id); 939f3a39818SAndrew Lewycky int kfd_reset_event(struct kfd_process *p, uint32_t event_id); 9400fc8011fSFelix Kuehling int kfd_event_page_set(struct kfd_process *p, void *kernel_address, 9410fc8011fSFelix Kuehling uint64_t size); 942f3a39818SAndrew Lewycky int kfd_event_create(struct file *devkfd, struct kfd_process *p, 943f3a39818SAndrew Lewycky uint32_t event_type, bool auto_reset, uint32_t node_id, 944f3a39818SAndrew Lewycky uint32_t *event_id, uint32_t *event_trigger_data, 945f3a39818SAndrew Lewycky uint64_t *event_page_offset, uint32_t *event_slot_index); 946f3a39818SAndrew Lewycky int kfd_event_destroy(struct kfd_process *p, uint32_t event_id); 947f3a39818SAndrew Lewycky 948403575c4SFelix Kuehling void kfd_flush_tlb(struct kfd_process_device *pdd); 949403575c4SFelix Kuehling 950c3447e81SBen Goz int dbgdev_wave_reset_wavefronts(struct kfd_dev *dev, struct kfd_process *p); 951c3447e81SBen Goz 952851a645eSFelix Kuehling /* Debugfs */ 953851a645eSFelix Kuehling #if defined(CONFIG_DEBUG_FS) 954851a645eSFelix Kuehling 955851a645eSFelix Kuehling void kfd_debugfs_init(void); 956851a645eSFelix Kuehling void kfd_debugfs_fini(void); 957851a645eSFelix Kuehling int kfd_debugfs_mqds_by_process(struct seq_file *m, void *data); 958851a645eSFelix Kuehling int pqm_debugfs_mqds(struct seq_file *m, void *data); 959851a645eSFelix Kuehling int kfd_debugfs_hqds_by_device(struct seq_file *m, void *data); 960851a645eSFelix Kuehling int dqm_debugfs_hqds(struct seq_file *m, void *data); 961851a645eSFelix Kuehling int kfd_debugfs_rls_by_device(struct seq_file *m, void *data); 962851a645eSFelix Kuehling int pm_debugfs_runlist(struct seq_file *m, void *data); 963851a645eSFelix Kuehling 964851a645eSFelix Kuehling #else 965851a645eSFelix Kuehling 966851a645eSFelix Kuehling static inline void kfd_debugfs_init(void) {} 967851a645eSFelix Kuehling static inline void kfd_debugfs_fini(void) {} 968851a645eSFelix Kuehling 969851a645eSFelix Kuehling #endif 970851a645eSFelix Kuehling 9714a488a7aSOded Gabbay #endif 972