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 172f3a39818SAndrew Lewycky struct kfd_event_interrupt_class { 173f3a39818SAndrew Lewycky bool (*interrupt_isr)(struct kfd_dev *dev, 174f3a39818SAndrew Lewycky const uint32_t *ih_ring_entry); 175f3a39818SAndrew Lewycky void (*interrupt_wq)(struct kfd_dev *dev, 176f3a39818SAndrew Lewycky const uint32_t *ih_ring_entry); 177f3a39818SAndrew Lewycky }; 178f3a39818SAndrew Lewycky 1794a488a7aSOded Gabbay struct kfd_device_info { 180e596b903SYong Zhao enum amd_asic_type asic_family; 181f3a39818SAndrew Lewycky const struct kfd_event_interrupt_class *event_interrupt_class; 1824a488a7aSOded Gabbay unsigned int max_pasid_bits; 183992839adSYair Shachar unsigned int max_no_of_hqd; 184ada2b29cSFelix Kuehling unsigned int doorbell_size; 1854a488a7aSOded Gabbay size_t ih_ring_entry_size; 186f7c826adSAlexey Skidanov uint8_t num_of_watch_points; 18719f6d2a6SOded Gabbay uint16_t mqd_size_aligned; 188373d7080SFelix Kuehling bool supports_cwsr; 18964d1c3a4SFelix Kuehling bool needs_iommu_device; 1903ee2d00cSFelix Kuehling bool needs_pci_atomics; 1914a488a7aSOded Gabbay }; 1924a488a7aSOded Gabbay 19336b5c08fSOded Gabbay struct kfd_mem_obj { 19436b5c08fSOded Gabbay uint32_t range_start; 19536b5c08fSOded Gabbay uint32_t range_end; 19636b5c08fSOded Gabbay uint64_t gpu_addr; 19736b5c08fSOded Gabbay uint32_t *cpu_ptr; 19836b5c08fSOded Gabbay }; 19936b5c08fSOded Gabbay 20044008d7aSYong Zhao struct kfd_vmid_info { 20144008d7aSYong Zhao uint32_t first_vmid_kfd; 20244008d7aSYong Zhao uint32_t last_vmid_kfd; 20344008d7aSYong Zhao uint32_t vmid_num_kfd; 20444008d7aSYong Zhao }; 20544008d7aSYong Zhao 2064a488a7aSOded Gabbay struct kfd_dev { 2074a488a7aSOded Gabbay struct kgd_dev *kgd; 2084a488a7aSOded Gabbay 2094a488a7aSOded Gabbay const struct kfd_device_info *device_info; 2104a488a7aSOded Gabbay struct pci_dev *pdev; 2114a488a7aSOded Gabbay 2124a488a7aSOded Gabbay unsigned int id; /* topology stub index */ 2134a488a7aSOded Gabbay 21419f6d2a6SOded Gabbay phys_addr_t doorbell_base; /* Start of actual doorbells used by 21519f6d2a6SOded Gabbay * KFD. It is aligned for mapping 21619f6d2a6SOded Gabbay * into user mode 21719f6d2a6SOded Gabbay */ 21819f6d2a6SOded Gabbay size_t doorbell_id_offset; /* Doorbell offset (from KFD doorbell 21919f6d2a6SOded Gabbay * to HW doorbell, GFX reserved some 22019f6d2a6SOded Gabbay * at the start) 22119f6d2a6SOded Gabbay */ 22219f6d2a6SOded Gabbay u32 __iomem *doorbell_kernel_ptr; /* This is a pointer for a doorbells 22319f6d2a6SOded Gabbay * page used by kernel queue 22419f6d2a6SOded Gabbay */ 22519f6d2a6SOded Gabbay 2264a488a7aSOded Gabbay struct kgd2kfd_shared_resources shared_resources; 22744008d7aSYong Zhao struct kfd_vmid_info vm_info; 2284a488a7aSOded Gabbay 229cea405b1SXihan Zhang const struct kfd2kgd_calls *kfd2kgd; 230cea405b1SXihan Zhang struct mutex doorbell_mutex; 231f761d8bdSJoe Perches DECLARE_BITMAP(doorbell_available_index, 232f761d8bdSJoe Perches KFD_MAX_NUM_OF_QUEUES_PER_PROCESS); 233cea405b1SXihan Zhang 23436b5c08fSOded Gabbay void *gtt_mem; 23536b5c08fSOded Gabbay uint64_t gtt_start_gpu_addr; 23636b5c08fSOded Gabbay void *gtt_start_cpu_ptr; 23736b5c08fSOded Gabbay void *gtt_sa_bitmap; 23836b5c08fSOded Gabbay struct mutex gtt_sa_lock; 23936b5c08fSOded Gabbay unsigned int gtt_sa_chunk_size; 24036b5c08fSOded Gabbay unsigned int gtt_sa_num_of_chunks; 24136b5c08fSOded Gabbay 2422249d558SAndrew Lewycky /* Interrupts */ 24304ad47bdSAndres Rodriguez struct kfifo ih_fifo; 24448e876a2SAndres Rodriguez struct workqueue_struct *ih_wq; 2452249d558SAndrew Lewycky struct work_struct interrupt_work; 2462249d558SAndrew Lewycky spinlock_t interrupt_lock; 2472249d558SAndrew Lewycky 248ed6e6a34SBen Goz /* QCM Device instance */ 249ed6e6a34SBen Goz struct device_queue_manager *dqm; 2504a488a7aSOded Gabbay 251ed6e6a34SBen Goz bool init_complete; 2522249d558SAndrew Lewycky /* 2532249d558SAndrew Lewycky * Interrupts of interest to KFD are copied 2542249d558SAndrew Lewycky * from the HW ring into a SW ring. 2552249d558SAndrew Lewycky */ 2562249d558SAndrew Lewycky bool interrupts_active; 257fbeb661bSYair Shachar 258fbeb661bSYair Shachar /* Debug manager */ 259fbeb661bSYair Shachar struct kfd_dbgmgr *dbgmgr; 260373d7080SFelix Kuehling 261a99c6d4fSFelix Kuehling /* Maximum process number mapped to HW scheduler */ 262a99c6d4fSFelix Kuehling unsigned int max_proc_per_quantum; 263a99c6d4fSFelix Kuehling 264373d7080SFelix Kuehling /* CWSR */ 265373d7080SFelix Kuehling bool cwsr_enabled; 266373d7080SFelix Kuehling const void *cwsr_isa; 267373d7080SFelix Kuehling unsigned int cwsr_isa_size; 2684a488a7aSOded Gabbay }; 2694a488a7aSOded Gabbay 2704a488a7aSOded Gabbay /* KGD2KFD callbacks */ 2714a488a7aSOded Gabbay void kgd2kfd_exit(void); 272cea405b1SXihan Zhang struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, 273cea405b1SXihan Zhang struct pci_dev *pdev, const struct kfd2kgd_calls *f2g); 2744a488a7aSOded Gabbay bool kgd2kfd_device_init(struct kfd_dev *kfd, 2754a488a7aSOded Gabbay const struct kgd2kfd_shared_resources *gpu_resources); 2764a488a7aSOded Gabbay void kgd2kfd_device_exit(struct kfd_dev *kfd); 2774a488a7aSOded Gabbay 27819f6d2a6SOded Gabbay enum kfd_mempool { 27919f6d2a6SOded Gabbay KFD_MEMPOOL_SYSTEM_CACHEABLE = 1, 28019f6d2a6SOded Gabbay KFD_MEMPOOL_SYSTEM_WRITECOMBINE = 2, 28119f6d2a6SOded Gabbay KFD_MEMPOOL_FRAMEBUFFER = 3, 28219f6d2a6SOded Gabbay }; 28319f6d2a6SOded Gabbay 2844a488a7aSOded Gabbay /* Character device interface */ 2854a488a7aSOded Gabbay int kfd_chardev_init(void); 2864a488a7aSOded Gabbay void kfd_chardev_exit(void); 2874a488a7aSOded Gabbay struct device *kfd_chardev(void); 2884a488a7aSOded Gabbay 289241f24f8SBen Goz /** 2907da2bcf8SYong Zhao * enum kfd_unmap_queues_filter 291241f24f8SBen Goz * 2927da2bcf8SYong Zhao * @KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE: Preempts single queue. 293241f24f8SBen Goz * 2947da2bcf8SYong Zhao * @KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES: Preempts all queues in the 295241f24f8SBen Goz * running queues list. 296241f24f8SBen Goz * 2977da2bcf8SYong Zhao * @KFD_UNMAP_QUEUES_FILTER_BY_PASID: Preempts queues that belongs to 298241f24f8SBen Goz * specific process. 299241f24f8SBen Goz * 300241f24f8SBen Goz */ 3017da2bcf8SYong Zhao enum kfd_unmap_queues_filter { 3027da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE, 3037da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES, 3047da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 3057da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_BY_PASID 306241f24f8SBen Goz }; 30719f6d2a6SOded Gabbay 308ed8aab45SBen Goz /** 309ed8aab45SBen Goz * enum kfd_queue_type 310ed8aab45SBen Goz * 311ed8aab45SBen Goz * @KFD_QUEUE_TYPE_COMPUTE: Regular user mode queue type. 312ed8aab45SBen Goz * 313ed8aab45SBen Goz * @KFD_QUEUE_TYPE_SDMA: Sdma user mode queue type. 314ed8aab45SBen Goz * 315ed8aab45SBen Goz * @KFD_QUEUE_TYPE_HIQ: HIQ queue type. 316ed8aab45SBen Goz * 317ed8aab45SBen Goz * @KFD_QUEUE_TYPE_DIQ: DIQ queue type. 318ed8aab45SBen Goz */ 319ed8aab45SBen Goz enum kfd_queue_type { 320ed8aab45SBen Goz KFD_QUEUE_TYPE_COMPUTE, 321ed8aab45SBen Goz KFD_QUEUE_TYPE_SDMA, 322ed8aab45SBen Goz KFD_QUEUE_TYPE_HIQ, 323ed8aab45SBen Goz KFD_QUEUE_TYPE_DIQ 324ed8aab45SBen Goz }; 325ed8aab45SBen Goz 3266e99df57SBen Goz enum kfd_queue_format { 3276e99df57SBen Goz KFD_QUEUE_FORMAT_PM4, 3286e99df57SBen Goz KFD_QUEUE_FORMAT_AQL 3296e99df57SBen Goz }; 3306e99df57SBen Goz 331ed8aab45SBen Goz /** 332ed8aab45SBen Goz * struct queue_properties 333ed8aab45SBen Goz * 334ed8aab45SBen Goz * @type: The queue type. 335ed8aab45SBen Goz * 336ed8aab45SBen Goz * @queue_id: Queue identifier. 337ed8aab45SBen Goz * 338ed8aab45SBen Goz * @queue_address: Queue ring buffer address. 339ed8aab45SBen Goz * 340ed8aab45SBen Goz * @queue_size: Queue ring buffer size. 341ed8aab45SBen Goz * 342ed8aab45SBen Goz * @priority: Defines the queue priority relative to other queues in the 343ed8aab45SBen Goz * process. 344ed8aab45SBen Goz * This is just an indication and HW scheduling may override the priority as 345ed8aab45SBen Goz * necessary while keeping the relative prioritization. 346ed8aab45SBen Goz * the priority granularity is from 0 to f which f is the highest priority. 347ed8aab45SBen Goz * currently all queues are initialized with the highest priority. 348ed8aab45SBen Goz * 349ed8aab45SBen Goz * @queue_percent: This field is partially implemented and currently a zero in 350ed8aab45SBen Goz * this field defines that the queue is non active. 351ed8aab45SBen Goz * 352ed8aab45SBen Goz * @read_ptr: User space address which points to the number of dwords the 353ed8aab45SBen Goz * cp read from the ring buffer. This field updates automatically by the H/W. 354ed8aab45SBen Goz * 355ed8aab45SBen Goz * @write_ptr: Defines the number of dwords written to the ring buffer. 356ed8aab45SBen Goz * 357ed8aab45SBen Goz * @doorbell_ptr: This field aim is to notify the H/W of new packet written to 3588eabaf54SKent Russell * the queue ring buffer. This field should be similar to write_ptr and the 3598eabaf54SKent Russell * user should update this field after he updated the write_ptr. 360ed8aab45SBen Goz * 361ed8aab45SBen Goz * @doorbell_off: The doorbell offset in the doorbell pci-bar. 362ed8aab45SBen Goz * 3638eabaf54SKent Russell * @is_interop: Defines if this is a interop queue. Interop queue means that 3648eabaf54SKent Russell * the queue can access both graphics and compute resources. 365ed8aab45SBen Goz * 36626103436SFelix Kuehling * @is_evicted: Defines if the queue is evicted. Only active queues 36726103436SFelix Kuehling * are evicted, rendering them inactive. 36826103436SFelix Kuehling * 36926103436SFelix Kuehling * @is_active: Defines if the queue is active or not. @is_active and 37026103436SFelix Kuehling * @is_evicted are protected by the DQM lock. 371ed8aab45SBen Goz * 372ed8aab45SBen Goz * @vmid: If the scheduling mode is no cp scheduling the field defines the vmid 373ed8aab45SBen Goz * of the queue. 374ed8aab45SBen Goz * 375ed8aab45SBen Goz * This structure represents the queue properties for each queue no matter if 376ed8aab45SBen Goz * it's user mode or kernel mode queue. 377ed8aab45SBen Goz * 378ed8aab45SBen Goz */ 379ed8aab45SBen Goz struct queue_properties { 380ed8aab45SBen Goz enum kfd_queue_type type; 3816e99df57SBen Goz enum kfd_queue_format format; 382ed8aab45SBen Goz unsigned int queue_id; 383ed8aab45SBen Goz uint64_t queue_address; 384ed8aab45SBen Goz uint64_t queue_size; 385ed8aab45SBen Goz uint32_t priority; 386ed8aab45SBen Goz uint32_t queue_percent; 387ed8aab45SBen Goz uint32_t *read_ptr; 388ed8aab45SBen Goz uint32_t *write_ptr; 389ada2b29cSFelix Kuehling void __iomem *doorbell_ptr; 390ed8aab45SBen Goz uint32_t doorbell_off; 391ed8aab45SBen Goz bool is_interop; 39226103436SFelix Kuehling bool is_evicted; 393ed8aab45SBen Goz bool is_active; 394ed8aab45SBen Goz /* Not relevant for user mode queues in cp scheduling */ 395ed8aab45SBen Goz unsigned int vmid; 39677669eb8SBen Goz /* Relevant only for sdma queues*/ 39777669eb8SBen Goz uint32_t sdma_engine_id; 39877669eb8SBen Goz uint32_t sdma_queue_id; 39977669eb8SBen Goz uint32_t sdma_vm_addr; 400ff3d04a1SBen Goz /* Relevant only for VI */ 401ff3d04a1SBen Goz uint64_t eop_ring_buffer_address; 402ff3d04a1SBen Goz uint32_t eop_ring_buffer_size; 403ff3d04a1SBen Goz uint64_t ctx_save_restore_area_address; 404ff3d04a1SBen Goz uint32_t ctx_save_restore_area_size; 405373d7080SFelix Kuehling uint32_t ctl_stack_size; 406373d7080SFelix Kuehling uint64_t tba_addr; 407373d7080SFelix Kuehling uint64_t tma_addr; 408ed8aab45SBen Goz }; 409ed8aab45SBen Goz 410ed8aab45SBen Goz /** 411ed8aab45SBen Goz * struct queue 412ed8aab45SBen Goz * 413ed8aab45SBen Goz * @list: Queue linked list. 414ed8aab45SBen Goz * 415ed8aab45SBen Goz * @mqd: The queue MQD. 416ed8aab45SBen Goz * 417ed8aab45SBen Goz * @mqd_mem_obj: The MQD local gpu memory object. 418ed8aab45SBen Goz * 419ed8aab45SBen Goz * @gart_mqd_addr: The MQD gart mc address. 420ed8aab45SBen Goz * 421ed8aab45SBen Goz * @properties: The queue properties. 422ed8aab45SBen Goz * 423ed8aab45SBen Goz * @mec: Used only in no cp scheduling mode and identifies to micro engine id 424ed8aab45SBen Goz * that the queue should be execute on. 425ed8aab45SBen Goz * 4268eabaf54SKent Russell * @pipe: Used only in no cp scheduling mode and identifies the queue's pipe 4278eabaf54SKent Russell * id. 428ed8aab45SBen Goz * 429ed8aab45SBen Goz * @queue: Used only in no cp scheduliong mode and identifies the queue's slot. 430ed8aab45SBen Goz * 431ed8aab45SBen Goz * @process: The kfd process that created this queue. 432ed8aab45SBen Goz * 433ed8aab45SBen Goz * @device: The kfd device that created this queue. 434ed8aab45SBen Goz * 435ed8aab45SBen Goz * This structure represents user mode compute queues. 436ed8aab45SBen Goz * It contains all the necessary data to handle such queues. 437ed8aab45SBen Goz * 438ed8aab45SBen Goz */ 439ed8aab45SBen Goz 440ed8aab45SBen Goz struct queue { 441ed8aab45SBen Goz struct list_head list; 442ed8aab45SBen Goz void *mqd; 443ed8aab45SBen Goz struct kfd_mem_obj *mqd_mem_obj; 444ed8aab45SBen Goz uint64_t gart_mqd_addr; 445ed8aab45SBen Goz struct queue_properties properties; 446ed8aab45SBen Goz 447ed8aab45SBen Goz uint32_t mec; 448ed8aab45SBen Goz uint32_t pipe; 449ed8aab45SBen Goz uint32_t queue; 450ed8aab45SBen Goz 45177669eb8SBen Goz unsigned int sdma_id; 45277669eb8SBen Goz 453ed8aab45SBen Goz struct kfd_process *process; 454ed8aab45SBen Goz struct kfd_dev *device; 455ed8aab45SBen Goz }; 456ed8aab45SBen Goz 4576e99df57SBen Goz /* 4586e99df57SBen Goz * Please read the kfd_mqd_manager.h description. 4596e99df57SBen Goz */ 4606e99df57SBen Goz enum KFD_MQD_TYPE { 46185d258f9SBen Goz KFD_MQD_TYPE_COMPUTE = 0, /* for no cp scheduling */ 46285d258f9SBen Goz KFD_MQD_TYPE_HIQ, /* for hiq */ 46385d258f9SBen Goz KFD_MQD_TYPE_CP, /* for cp queues and diq */ 46485d258f9SBen Goz KFD_MQD_TYPE_SDMA, /* for sdma queues */ 4656e99df57SBen Goz KFD_MQD_TYPE_MAX 4666e99df57SBen Goz }; 4676e99df57SBen Goz 468241f24f8SBen Goz struct scheduling_resources { 469241f24f8SBen Goz unsigned int vmid_mask; 470241f24f8SBen Goz enum kfd_queue_type type; 471241f24f8SBen Goz uint64_t queue_mask; 472241f24f8SBen Goz uint64_t gws_mask; 473241f24f8SBen Goz uint32_t oac_mask; 474241f24f8SBen Goz uint32_t gds_heap_base; 475241f24f8SBen Goz uint32_t gds_heap_size; 476241f24f8SBen Goz }; 477241f24f8SBen Goz 478241f24f8SBen Goz struct process_queue_manager { 479241f24f8SBen Goz /* data */ 480241f24f8SBen Goz struct kfd_process *process; 481241f24f8SBen Goz struct list_head queues; 482241f24f8SBen Goz unsigned long *queue_slot_bitmap; 483241f24f8SBen Goz }; 484241f24f8SBen Goz 485241f24f8SBen Goz struct qcm_process_device { 486241f24f8SBen Goz /* The Device Queue Manager that owns this data */ 487241f24f8SBen Goz struct device_queue_manager *dqm; 488241f24f8SBen Goz struct process_queue_manager *pqm; 489241f24f8SBen Goz /* Queues list */ 490241f24f8SBen Goz struct list_head queues_list; 491241f24f8SBen Goz struct list_head priv_queue_list; 492241f24f8SBen Goz 493241f24f8SBen Goz unsigned int queue_count; 494241f24f8SBen Goz unsigned int vmid; 495241f24f8SBen Goz bool is_debug; 49626103436SFelix Kuehling unsigned int evicted; /* eviction counter, 0=active */ 4979fd3f1bfSFelix Kuehling 4989fd3f1bfSFelix Kuehling /* This flag tells if we should reset all wavefronts on 4999fd3f1bfSFelix Kuehling * process termination 5009fd3f1bfSFelix Kuehling */ 5019fd3f1bfSFelix Kuehling bool reset_wavefronts; 5029fd3f1bfSFelix Kuehling 503241f24f8SBen Goz /* 504241f24f8SBen Goz * All the memory management data should be here too 505241f24f8SBen Goz */ 506241f24f8SBen Goz uint64_t gds_context_area; 507241f24f8SBen Goz uint32_t sh_mem_config; 508241f24f8SBen Goz uint32_t sh_mem_bases; 509241f24f8SBen Goz uint32_t sh_mem_ape1_base; 510241f24f8SBen Goz uint32_t sh_mem_ape1_limit; 511241f24f8SBen Goz uint32_t page_table_base; 512241f24f8SBen Goz uint32_t gds_size; 513241f24f8SBen Goz uint32_t num_gws; 514241f24f8SBen Goz uint32_t num_oac; 5156a1c9510SMoses Reuben uint32_t sh_hidden_private_base; 516373d7080SFelix Kuehling 517373d7080SFelix Kuehling /* CWSR memory */ 518373d7080SFelix Kuehling void *cwsr_kaddr; 519d01994c2SFelix Kuehling uint64_t cwsr_base; 520373d7080SFelix Kuehling uint64_t tba_addr; 521373d7080SFelix Kuehling uint64_t tma_addr; 522d01994c2SFelix Kuehling 523d01994c2SFelix Kuehling /* IB memory */ 524d01994c2SFelix Kuehling uint64_t ib_base; 525552764b6SFelix Kuehling void *ib_kaddr; 526241f24f8SBen Goz }; 527241f24f8SBen Goz 52826103436SFelix Kuehling /* KFD Memory Eviction */ 52926103436SFelix Kuehling 53026103436SFelix Kuehling /* Approx. wait time before attempting to restore evicted BOs */ 53126103436SFelix Kuehling #define PROCESS_RESTORE_TIME_MS 100 53226103436SFelix Kuehling /* Approx. back off time if restore fails due to lack of memory */ 53326103436SFelix Kuehling #define PROCESS_BACK_OFF_TIME_MS 100 53426103436SFelix Kuehling /* Approx. time before evicting the process again */ 53526103436SFelix Kuehling #define PROCESS_ACTIVE_TIME_MS 10 53626103436SFelix Kuehling 5376b95e797SFelix Kuehling int kgd2kfd_quiesce_mm(struct mm_struct *mm); 5386b95e797SFelix Kuehling int kgd2kfd_resume_mm(struct mm_struct *mm); 53926103436SFelix Kuehling int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm, 54026103436SFelix Kuehling struct dma_fence *fence); 541733fa1f7SYong Zhao 5425ec7e028SFelix Kuehling /* 8 byte handle containing GPU ID in the most significant 4 bytes and 5435ec7e028SFelix Kuehling * idr_handle in the least significant 4 bytes 5445ec7e028SFelix Kuehling */ 5455ec7e028SFelix Kuehling #define MAKE_HANDLE(gpu_id, idr_handle) \ 5465ec7e028SFelix Kuehling (((uint64_t)(gpu_id) << 32) + idr_handle) 5475ec7e028SFelix Kuehling #define GET_GPU_ID(handle) (handle >> 32) 5485ec7e028SFelix Kuehling #define GET_IDR_HANDLE(handle) (handle & 0xFFFFFFFF) 5495ec7e028SFelix Kuehling 550733fa1f7SYong Zhao enum kfd_pdd_bound { 551733fa1f7SYong Zhao PDD_UNBOUND = 0, 552733fa1f7SYong Zhao PDD_BOUND, 553733fa1f7SYong Zhao PDD_BOUND_SUSPENDED, 554733fa1f7SYong Zhao }; 555733fa1f7SYong Zhao 55619f6d2a6SOded Gabbay /* Data that is per-process-per device. */ 55719f6d2a6SOded Gabbay struct kfd_process_device { 55819f6d2a6SOded Gabbay /* 55919f6d2a6SOded Gabbay * List of all per-device data for a process. 56019f6d2a6SOded Gabbay * Starts from kfd_process.per_device_data. 56119f6d2a6SOded Gabbay */ 56219f6d2a6SOded Gabbay struct list_head per_device_list; 56319f6d2a6SOded Gabbay 56419f6d2a6SOded Gabbay /* The device that owns this data. */ 56519f6d2a6SOded Gabbay struct kfd_dev *dev; 56619f6d2a6SOded Gabbay 5679fd3f1bfSFelix Kuehling /* The process that owns this kfd_process_device. */ 5689fd3f1bfSFelix Kuehling struct kfd_process *process; 56919f6d2a6SOded Gabbay 57045102048SBen Goz /* per-process-per device QCM data structure */ 57145102048SBen Goz struct qcm_process_device qpd; 57245102048SBen Goz 57319f6d2a6SOded Gabbay /*Apertures*/ 57419f6d2a6SOded Gabbay uint64_t lds_base; 57519f6d2a6SOded Gabbay uint64_t lds_limit; 57619f6d2a6SOded Gabbay uint64_t gpuvm_base; 57719f6d2a6SOded Gabbay uint64_t gpuvm_limit; 57819f6d2a6SOded Gabbay uint64_t scratch_base; 57919f6d2a6SOded Gabbay uint64_t scratch_limit; 58019f6d2a6SOded Gabbay 581403575c4SFelix Kuehling /* VM context for GPUVM allocations */ 582b84394e2SFelix Kuehling struct file *drm_file; 583403575c4SFelix Kuehling void *vm; 584403575c4SFelix Kuehling 58552b29d73SFelix Kuehling /* GPUVM allocations storage */ 58652b29d73SFelix Kuehling struct idr alloc_idr; 58752b29d73SFelix Kuehling 5889fd3f1bfSFelix Kuehling /* Flag used to tell the pdd has dequeued from the dqm. 5899fd3f1bfSFelix Kuehling * This is used to prevent dev->dqm->ops.process_termination() from 5909fd3f1bfSFelix Kuehling * being called twice when it is already called in IOMMU callback 5919fd3f1bfSFelix Kuehling * function. 592a82918f1SBen Goz */ 5939fd3f1bfSFelix Kuehling bool already_dequeued; 59464d1c3a4SFelix Kuehling 59564d1c3a4SFelix Kuehling /* Is this process/pasid bound to this device? (amd_iommu_bind_pasid) */ 59664d1c3a4SFelix Kuehling enum kfd_pdd_bound bound; 59719f6d2a6SOded Gabbay }; 59819f6d2a6SOded Gabbay 59952a5fdceSAlexey Skidanov #define qpd_to_pdd(x) container_of(x, struct kfd_process_device, qpd) 60052a5fdceSAlexey Skidanov 6014a488a7aSOded Gabbay /* Process data */ 6024a488a7aSOded Gabbay struct kfd_process { 60319f6d2a6SOded Gabbay /* 60419f6d2a6SOded Gabbay * kfd_process are stored in an mm_struct*->kfd_process* 60519f6d2a6SOded Gabbay * hash table (kfd_processes in kfd_process.c) 60619f6d2a6SOded Gabbay */ 60719f6d2a6SOded Gabbay struct hlist_node kfd_processes; 60819f6d2a6SOded Gabbay 6099b56bb11SFelix Kuehling /* 6109b56bb11SFelix Kuehling * Opaque pointer to mm_struct. We don't hold a reference to 6119b56bb11SFelix Kuehling * it so it should never be dereferenced from here. This is 6129b56bb11SFelix Kuehling * only used for looking up processes by their mm. 6139b56bb11SFelix Kuehling */ 6149b56bb11SFelix Kuehling void *mm; 61519f6d2a6SOded Gabbay 6165ce10687SFelix Kuehling struct kref ref; 6175ce10687SFelix Kuehling struct work_struct release_work; 6185ce10687SFelix Kuehling 61919f6d2a6SOded Gabbay struct mutex mutex; 62019f6d2a6SOded Gabbay 62119f6d2a6SOded Gabbay /* 62219f6d2a6SOded Gabbay * In any process, the thread that started main() is the lead 62319f6d2a6SOded Gabbay * thread and outlives the rest. 62419f6d2a6SOded Gabbay * It is here because amd_iommu_bind_pasid wants a task_struct. 625894a8293SFelix Kuehling * It can also be used for safely getting a reference to the 626894a8293SFelix Kuehling * mm_struct of the process. 62719f6d2a6SOded Gabbay */ 62819f6d2a6SOded Gabbay struct task_struct *lead_thread; 62919f6d2a6SOded Gabbay 63019f6d2a6SOded Gabbay /* We want to receive a notification when the mm_struct is destroyed */ 63119f6d2a6SOded Gabbay struct mmu_notifier mmu_notifier; 63219f6d2a6SOded Gabbay 63319f6d2a6SOded Gabbay /* Use for delayed freeing of kfd_process structure */ 63419f6d2a6SOded Gabbay struct rcu_head rcu; 63519f6d2a6SOded Gabbay 63619f6d2a6SOded Gabbay unsigned int pasid; 637a91e70e3SFelix Kuehling unsigned int doorbell_index; 63819f6d2a6SOded Gabbay 63919f6d2a6SOded Gabbay /* 64019f6d2a6SOded Gabbay * List of kfd_process_device structures, 64119f6d2a6SOded Gabbay * one for each device the process is using. 64219f6d2a6SOded Gabbay */ 64319f6d2a6SOded Gabbay struct list_head per_device_data; 64419f6d2a6SOded Gabbay 64545102048SBen Goz struct process_queue_manager pqm; 64645102048SBen Goz 64719f6d2a6SOded Gabbay /*Is the user space process 32 bit?*/ 64819f6d2a6SOded Gabbay bool is_32bit_user_mode; 649f3a39818SAndrew Lewycky 650f3a39818SAndrew Lewycky /* Event-related data */ 651f3a39818SAndrew Lewycky struct mutex event_mutex; 652482f0777SFelix Kuehling /* Event ID allocator and lookup */ 653482f0777SFelix Kuehling struct idr event_idr; 65450cb7dd9SFelix Kuehling /* Event page */ 65550cb7dd9SFelix Kuehling struct kfd_signal_page *signal_page; 656b9a5d0a5SFelix Kuehling size_t signal_mapped_size; 657f3a39818SAndrew Lewycky size_t signal_event_count; 658c986169fSFelix Kuehling bool signal_event_limit_reached; 659403575c4SFelix Kuehling 660403575c4SFelix Kuehling /* Information used for memory eviction */ 661403575c4SFelix Kuehling void *kgd_process_info; 662403575c4SFelix Kuehling /* Eviction fence that is attached to all the BOs of this process. The 663403575c4SFelix Kuehling * fence will be triggered during eviction and new one will be created 664403575c4SFelix Kuehling * during restore 665403575c4SFelix Kuehling */ 666403575c4SFelix Kuehling struct dma_fence *ef; 66726103436SFelix Kuehling 66826103436SFelix Kuehling /* Work items for evicting and restoring BOs */ 66926103436SFelix Kuehling struct delayed_work eviction_work; 67026103436SFelix Kuehling struct delayed_work restore_work; 67126103436SFelix Kuehling /* seqno of the last scheduled eviction */ 67226103436SFelix Kuehling unsigned int last_eviction_seqno; 67326103436SFelix Kuehling /* Approx. the last timestamp (in jiffies) when the process was 67426103436SFelix Kuehling * restored after an eviction 67526103436SFelix Kuehling */ 67626103436SFelix Kuehling unsigned long last_restore_timestamp; 6774a488a7aSOded Gabbay }; 6784a488a7aSOded Gabbay 67964d1c3a4SFelix Kuehling #define KFD_PROCESS_TABLE_SIZE 5 /* bits: 32 entries */ 68064d1c3a4SFelix Kuehling extern DECLARE_HASHTABLE(kfd_processes_table, KFD_PROCESS_TABLE_SIZE); 68164d1c3a4SFelix Kuehling extern struct srcu_struct kfd_processes_srcu; 68264d1c3a4SFelix Kuehling 68376baee6cSOded Gabbay /** 68476baee6cSOded Gabbay * Ioctl function type. 68576baee6cSOded Gabbay * 68676baee6cSOded Gabbay * \param filep pointer to file structure. 68776baee6cSOded Gabbay * \param p amdkfd process pointer. 68876baee6cSOded Gabbay * \param data pointer to arg that was copied from user. 68976baee6cSOded Gabbay */ 69076baee6cSOded Gabbay typedef int amdkfd_ioctl_t(struct file *filep, struct kfd_process *p, 69176baee6cSOded Gabbay void *data); 69276baee6cSOded Gabbay 69376baee6cSOded Gabbay struct amdkfd_ioctl_desc { 69476baee6cSOded Gabbay unsigned int cmd; 69576baee6cSOded Gabbay int flags; 69676baee6cSOded Gabbay amdkfd_ioctl_t *func; 69776baee6cSOded Gabbay unsigned int cmd_drv; 69876baee6cSOded Gabbay const char *name; 69976baee6cSOded Gabbay }; 70076baee6cSOded Gabbay 7011679ae8fSFelix Kuehling int kfd_process_create_wq(void); 70219f6d2a6SOded Gabbay void kfd_process_destroy_wq(void); 703373d7080SFelix Kuehling struct kfd_process *kfd_create_process(struct file *filep); 70419f6d2a6SOded Gabbay struct kfd_process *kfd_get_process(const struct task_struct *); 705f3a39818SAndrew Lewycky struct kfd_process *kfd_lookup_process_by_pasid(unsigned int pasid); 70626103436SFelix Kuehling struct kfd_process *kfd_lookup_process_by_mm(const struct mm_struct *mm); 707abb208a8SFelix Kuehling void kfd_unref_process(struct kfd_process *p); 7086b95e797SFelix Kuehling int kfd_process_evict_queues(struct kfd_process *p); 7096b95e797SFelix Kuehling int kfd_process_restore_queues(struct kfd_process *p); 71026103436SFelix Kuehling void kfd_suspend_all_processes(void); 71126103436SFelix Kuehling int kfd_resume_all_processes(void); 71219f6d2a6SOded Gabbay 713b84394e2SFelix Kuehling int kfd_process_device_init_vm(struct kfd_process_device *pdd, 714b84394e2SFelix Kuehling struct file *drm_file); 71564c7f8cfSBen Goz struct kfd_process_device *kfd_bind_process_to_device(struct kfd_dev *dev, 71664c7f8cfSBen Goz struct kfd_process *p); 71719f6d2a6SOded Gabbay struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev, 718093c7d8cSAlexey Skidanov struct kfd_process *p); 719093c7d8cSAlexey Skidanov struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, 720093c7d8cSAlexey Skidanov struct kfd_process *p); 72119f6d2a6SOded Gabbay 722df03ef93SHarish Kasiviswanathan int kfd_reserved_mem_mmap(struct kfd_dev *dev, struct kfd_process *process, 723373d7080SFelix Kuehling struct vm_area_struct *vma); 724373d7080SFelix Kuehling 72552b29d73SFelix Kuehling /* KFD process API for creating and translating handles */ 72652b29d73SFelix Kuehling int kfd_process_device_create_obj_handle(struct kfd_process_device *pdd, 72752b29d73SFelix Kuehling void *mem); 72852b29d73SFelix Kuehling void *kfd_process_device_translate_handle(struct kfd_process_device *p, 72952b29d73SFelix Kuehling int handle); 73052b29d73SFelix Kuehling void kfd_process_device_remove_obj_handle(struct kfd_process_device *pdd, 73152b29d73SFelix Kuehling int handle); 73252b29d73SFelix Kuehling 733775921edSAlexey Skidanov /* Process device data iterator */ 7348eabaf54SKent Russell struct kfd_process_device *kfd_get_first_process_device_data( 7358eabaf54SKent Russell struct kfd_process *p); 7368eabaf54SKent Russell struct kfd_process_device *kfd_get_next_process_device_data( 7378eabaf54SKent Russell struct kfd_process *p, 738775921edSAlexey Skidanov struct kfd_process_device *pdd); 739775921edSAlexey Skidanov bool kfd_has_process_device_data(struct kfd_process *p); 740775921edSAlexey Skidanov 74119f6d2a6SOded Gabbay /* PASIDs */ 74219f6d2a6SOded Gabbay int kfd_pasid_init(void); 74319f6d2a6SOded Gabbay void kfd_pasid_exit(void); 74419f6d2a6SOded Gabbay bool kfd_set_pasid_limit(unsigned int new_limit); 74519f6d2a6SOded Gabbay unsigned int kfd_get_pasid_limit(void); 74619f6d2a6SOded Gabbay unsigned int kfd_pasid_alloc(void); 74719f6d2a6SOded Gabbay void kfd_pasid_free(unsigned int pasid); 74819f6d2a6SOded Gabbay 74919f6d2a6SOded Gabbay /* Doorbells */ 750735df2baSFelix Kuehling int kfd_doorbell_init(struct kfd_dev *kfd); 751735df2baSFelix Kuehling void kfd_doorbell_fini(struct kfd_dev *kfd); 752df03ef93SHarish Kasiviswanathan int kfd_doorbell_mmap(struct kfd_dev *dev, struct kfd_process *process, 753df03ef93SHarish Kasiviswanathan struct vm_area_struct *vma); 754ada2b29cSFelix Kuehling void __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, 75519f6d2a6SOded Gabbay unsigned int *doorbell_off); 75619f6d2a6SOded Gabbay void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr); 75719f6d2a6SOded Gabbay u32 read_kernel_doorbell(u32 __iomem *db); 758ada2b29cSFelix Kuehling void write_kernel_doorbell(void __iomem *db, u32 value); 75919f6d2a6SOded Gabbay unsigned int kfd_queue_id_to_doorbell(struct kfd_dev *kfd, 76019f6d2a6SOded Gabbay struct kfd_process *process, 76119f6d2a6SOded Gabbay unsigned int queue_id); 762a91e70e3SFelix Kuehling phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev, 763a91e70e3SFelix Kuehling struct kfd_process *process); 764a91e70e3SFelix Kuehling int kfd_alloc_process_doorbells(struct kfd_process *process); 765a91e70e3SFelix Kuehling void kfd_free_process_doorbells(struct kfd_process *process); 76619f6d2a6SOded Gabbay 7676e81090bSOded Gabbay /* GTT Sub-Allocator */ 7686e81090bSOded Gabbay 7696e81090bSOded Gabbay int kfd_gtt_sa_allocate(struct kfd_dev *kfd, unsigned int size, 7706e81090bSOded Gabbay struct kfd_mem_obj **mem_obj); 7716e81090bSOded Gabbay 7726e81090bSOded Gabbay int kfd_gtt_sa_free(struct kfd_dev *kfd, struct kfd_mem_obj *mem_obj); 7736e81090bSOded Gabbay 7744a488a7aSOded Gabbay extern struct device *kfd_device; 7754a488a7aSOded Gabbay 7765b5c4e40SEvgeny Pinchuk /* Topology */ 7775b5c4e40SEvgeny Pinchuk int kfd_topology_init(void); 7785b5c4e40SEvgeny Pinchuk void kfd_topology_shutdown(void); 7795b5c4e40SEvgeny Pinchuk int kfd_topology_add_device(struct kfd_dev *gpu); 7805b5c4e40SEvgeny Pinchuk int kfd_topology_remove_device(struct kfd_dev *gpu); 7813a87177eSHarish Kasiviswanathan struct kfd_topology_device *kfd_topology_device_by_proximity_domain( 7823a87177eSHarish Kasiviswanathan uint32_t proximity_domain); 7835b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_id(uint32_t gpu_id); 7845b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev); 7856d82eb0eSHarish Kasiviswanathan int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_dev **kdev); 786520b8fb7SFelix Kuehling int kfd_numa_node_to_apic_id(int numa_node_id); 7875b5c4e40SEvgeny Pinchuk 7884a488a7aSOded Gabbay /* Interrupts */ 7892249d558SAndrew Lewycky int kfd_interrupt_init(struct kfd_dev *dev); 7902249d558SAndrew Lewycky void kfd_interrupt_exit(struct kfd_dev *dev); 791b3f5e6b4SAndrew Lewycky void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry); 7922249d558SAndrew Lewycky bool enqueue_ih_ring_entry(struct kfd_dev *kfd, const void *ih_ring_entry); 7932249d558SAndrew Lewycky bool interrupt_is_wanted(struct kfd_dev *dev, const uint32_t *ih_ring_entry); 7944a488a7aSOded Gabbay 7954a488a7aSOded Gabbay /* Power Management */ 796b3f5e6b4SAndrew Lewycky void kgd2kfd_suspend(struct kfd_dev *kfd); 797b3f5e6b4SAndrew Lewycky int kgd2kfd_resume(struct kfd_dev *kfd); 7984a488a7aSOded Gabbay 79919f6d2a6SOded Gabbay /* amdkfd Apertures */ 80019f6d2a6SOded Gabbay int kfd_init_apertures(struct kfd_process *process); 80119f6d2a6SOded Gabbay 802ed6e6a34SBen Goz /* Queue Context Management */ 803e88a614cSEdward O'Callaghan int init_queue(struct queue **q, const struct queue_properties *properties); 804ed6e6a34SBen Goz void uninit_queue(struct queue *q); 80545102048SBen Goz void print_queue_properties(struct queue_properties *q); 806ed6e6a34SBen Goz void print_queue(struct queue *q); 807ed6e6a34SBen Goz 80864c7f8cfSBen Goz struct mqd_manager *mqd_manager_init(enum KFD_MQD_TYPE type, 80964c7f8cfSBen Goz struct kfd_dev *dev); 8104b8f589bSBen Goz struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type, 8114b8f589bSBen Goz struct kfd_dev *dev); 812ee04955aSFelix Kuehling struct mqd_manager *mqd_manager_init_cik_hawaii(enum KFD_MQD_TYPE type, 813ee04955aSFelix Kuehling struct kfd_dev *dev); 8144b8f589bSBen Goz struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type, 8154b8f589bSBen Goz struct kfd_dev *dev); 816ee04955aSFelix Kuehling struct mqd_manager *mqd_manager_init_vi_tonga(enum KFD_MQD_TYPE type, 817ee04955aSFelix Kuehling struct kfd_dev *dev); 81864c7f8cfSBen Goz struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev); 81964c7f8cfSBen Goz void device_queue_manager_uninit(struct device_queue_manager *dqm); 820241f24f8SBen Goz struct kernel_queue *kernel_queue_init(struct kfd_dev *dev, 821241f24f8SBen Goz enum kfd_queue_type type); 822241f24f8SBen Goz void kernel_queue_uninit(struct kernel_queue *kq); 823241f24f8SBen Goz 82445102048SBen Goz /* Process Queue Manager */ 82545102048SBen Goz struct process_queue_node { 82645102048SBen Goz struct queue *q; 82745102048SBen Goz struct kernel_queue *kq; 82845102048SBen Goz struct list_head process_queue_list; 82945102048SBen Goz }; 83045102048SBen Goz 8319fd3f1bfSFelix Kuehling void kfd_process_dequeue_from_device(struct kfd_process_device *pdd); 8329fd3f1bfSFelix Kuehling void kfd_process_dequeue_from_all_devices(struct kfd_process *p); 83345102048SBen Goz int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p); 83445102048SBen Goz void pqm_uninit(struct process_queue_manager *pqm); 83545102048SBen Goz int pqm_create_queue(struct process_queue_manager *pqm, 83645102048SBen Goz struct kfd_dev *dev, 83745102048SBen Goz struct file *f, 83845102048SBen Goz struct queue_properties *properties, 83945102048SBen Goz unsigned int *qid); 84045102048SBen Goz int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid); 84145102048SBen Goz int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid, 84245102048SBen Goz struct queue_properties *p); 843fbeb661bSYair Shachar struct kernel_queue *pqm_get_kernel_queue(struct process_queue_manager *pqm, 844fbeb661bSYair Shachar unsigned int qid); 84545102048SBen Goz 846788bf83dSYair Shachar int amdkfd_fence_wait_timeout(unsigned int *fence_addr, 847788bf83dSYair Shachar unsigned int fence_value, 8488c72c3d7SYong Zhao unsigned int timeout_ms); 849788bf83dSYair Shachar 850ed6e6a34SBen Goz /* Packet Manager */ 851ed6e6a34SBen Goz 85264c7f8cfSBen Goz #define KFD_FENCE_COMPLETED (100) 85364c7f8cfSBen Goz #define KFD_FENCE_INIT (10) 854241f24f8SBen Goz 855ed6e6a34SBen Goz struct packet_manager { 856ed6e6a34SBen Goz struct device_queue_manager *dqm; 857ed6e6a34SBen Goz struct kernel_queue *priv_queue; 858ed6e6a34SBen Goz struct mutex lock; 859ed6e6a34SBen Goz bool allocated; 860ed6e6a34SBen Goz struct kfd_mem_obj *ib_buffer_obj; 861851a645eSFelix Kuehling unsigned int ib_size_bytes; 862ed6e6a34SBen Goz }; 863ed6e6a34SBen Goz 86464c7f8cfSBen Goz int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm); 86564c7f8cfSBen Goz void pm_uninit(struct packet_manager *pm); 86664c7f8cfSBen Goz int pm_send_set_resources(struct packet_manager *pm, 86764c7f8cfSBen Goz struct scheduling_resources *res); 86864c7f8cfSBen Goz int pm_send_runlist(struct packet_manager *pm, struct list_head *dqm_queues); 86964c7f8cfSBen Goz int pm_send_query_status(struct packet_manager *pm, uint64_t fence_address, 87064c7f8cfSBen Goz uint32_t fence_value); 87164c7f8cfSBen Goz 87264c7f8cfSBen Goz int pm_send_unmap_queue(struct packet_manager *pm, enum kfd_queue_type type, 8737da2bcf8SYong Zhao enum kfd_unmap_queues_filter mode, 87464c7f8cfSBen Goz uint32_t filter_param, bool reset, 87564c7f8cfSBen Goz unsigned int sdma_engine); 87664c7f8cfSBen Goz 877241f24f8SBen Goz void pm_release_ib(struct packet_manager *pm); 878241f24f8SBen Goz 879552764b6SFelix Kuehling uint32_t pm_create_release_mem(uint64_t gpu_addr, uint32_t *buffer); 880552764b6SFelix Kuehling 88119f6d2a6SOded Gabbay uint64_t kfd_get_number_elems(struct kfd_dev *kfd); 88219f6d2a6SOded Gabbay 883f3a39818SAndrew Lewycky /* Events */ 884f3a39818SAndrew Lewycky extern const struct kfd_event_interrupt_class event_interrupt_class_cik; 885930c5ff4SAlexey Skidanov extern const struct kfd_device_global_init_class device_global_init_class_cik; 886f3a39818SAndrew Lewycky 887f3a39818SAndrew Lewycky void kfd_event_init_process(struct kfd_process *p); 888f3a39818SAndrew Lewycky void kfd_event_free_process(struct kfd_process *p); 889f3a39818SAndrew Lewycky int kfd_event_mmap(struct kfd_process *process, struct vm_area_struct *vma); 890f3a39818SAndrew Lewycky int kfd_wait_on_events(struct kfd_process *p, 89159d3e8beSAlexey Skidanov uint32_t num_events, void __user *data, 892f3a39818SAndrew Lewycky bool all, uint32_t user_timeout_ms, 893fdf0c833SFelix Kuehling uint32_t *wait_result); 894f3a39818SAndrew Lewycky void kfd_signal_event_interrupt(unsigned int pasid, uint32_t partial_id, 895f3a39818SAndrew Lewycky uint32_t valid_id_bits); 89659d3e8beSAlexey Skidanov void kfd_signal_iommu_event(struct kfd_dev *dev, 89759d3e8beSAlexey Skidanov unsigned int pasid, unsigned long address, 89859d3e8beSAlexey Skidanov bool is_write_requested, bool is_execute_requested); 899930c5ff4SAlexey Skidanov void kfd_signal_hw_exception_event(unsigned int pasid); 900f3a39818SAndrew Lewycky int kfd_set_event(struct kfd_process *p, uint32_t event_id); 901f3a39818SAndrew Lewycky int kfd_reset_event(struct kfd_process *p, uint32_t event_id); 9020fc8011fSFelix Kuehling int kfd_event_page_set(struct kfd_process *p, void *kernel_address, 9030fc8011fSFelix Kuehling uint64_t size); 904f3a39818SAndrew Lewycky int kfd_event_create(struct file *devkfd, struct kfd_process *p, 905f3a39818SAndrew Lewycky uint32_t event_type, bool auto_reset, uint32_t node_id, 906f3a39818SAndrew Lewycky uint32_t *event_id, uint32_t *event_trigger_data, 907f3a39818SAndrew Lewycky uint64_t *event_page_offset, uint32_t *event_slot_index); 908f3a39818SAndrew Lewycky int kfd_event_destroy(struct kfd_process *p, uint32_t event_id); 909f3a39818SAndrew Lewycky 910403575c4SFelix Kuehling void kfd_flush_tlb(struct kfd_process_device *pdd); 911403575c4SFelix Kuehling 912c3447e81SBen Goz int dbgdev_wave_reset_wavefronts(struct kfd_dev *dev, struct kfd_process *p); 913c3447e81SBen Goz 914851a645eSFelix Kuehling /* Debugfs */ 915851a645eSFelix Kuehling #if defined(CONFIG_DEBUG_FS) 916851a645eSFelix Kuehling 917851a645eSFelix Kuehling void kfd_debugfs_init(void); 918851a645eSFelix Kuehling void kfd_debugfs_fini(void); 919851a645eSFelix Kuehling int kfd_debugfs_mqds_by_process(struct seq_file *m, void *data); 920851a645eSFelix Kuehling int pqm_debugfs_mqds(struct seq_file *m, void *data); 921851a645eSFelix Kuehling int kfd_debugfs_hqds_by_device(struct seq_file *m, void *data); 922851a645eSFelix Kuehling int dqm_debugfs_hqds(struct seq_file *m, void *data); 923851a645eSFelix Kuehling int kfd_debugfs_rls_by_device(struct seq_file *m, void *data); 924851a645eSFelix Kuehling int pm_debugfs_runlist(struct seq_file *m, void *data); 925851a645eSFelix Kuehling 926851a645eSFelix Kuehling #else 927851a645eSFelix Kuehling 928851a645eSFelix Kuehling static inline void kfd_debugfs_init(void) {} 929851a645eSFelix Kuehling static inline void kfd_debugfs_fini(void) {} 930851a645eSFelix Kuehling 931851a645eSFelix Kuehling #endif 932851a645eSFelix Kuehling 9334a488a7aSOded Gabbay #endif 934