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 42af47b390SLaura Abbott #define KFD_MAX_RING_ENTRY_SIZE 8 43af47b390SLaura Abbott 445b5c4e40SEvgeny Pinchuk #define KFD_SYSFS_FILE_MODE 0444 455b5c4e40SEvgeny Pinchuk 46df03ef93SHarish Kasiviswanathan /* GPU ID hash width in bits */ 47df03ef93SHarish Kasiviswanathan #define KFD_GPU_ID_HASH_WIDTH 16 48df03ef93SHarish Kasiviswanathan 49df03ef93SHarish Kasiviswanathan /* Use upper bits of mmap offset to store KFD driver specific information. 50df03ef93SHarish Kasiviswanathan * BITS[63:62] - Encode MMAP type 51df03ef93SHarish Kasiviswanathan * BITS[61:46] - Encode gpu_id. To identify to which GPU the offset belongs to 52df03ef93SHarish Kasiviswanathan * BITS[45:0] - MMAP offset value 53df03ef93SHarish Kasiviswanathan * 54df03ef93SHarish Kasiviswanathan * NOTE: struct vm_area_struct.vm_pgoff uses offset in pages. Hence, these 55df03ef93SHarish Kasiviswanathan * defines are w.r.t to PAGE_SIZE 56df03ef93SHarish Kasiviswanathan */ 57df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_SHIFT (62 - PAGE_SHIFT) 58df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_MASK (0x3ULL << KFD_MMAP_TYPE_SHIFT) 59df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_DOORBELL (0x3ULL << KFD_MMAP_TYPE_SHIFT) 60df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_EVENTS (0x2ULL << KFD_MMAP_TYPE_SHIFT) 61df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_RESERVED_MEM (0x1ULL << KFD_MMAP_TYPE_SHIFT) 62df03ef93SHarish Kasiviswanathan 63df03ef93SHarish Kasiviswanathan #define KFD_MMAP_GPU_ID_SHIFT (46 - PAGE_SHIFT) 64df03ef93SHarish Kasiviswanathan #define KFD_MMAP_GPU_ID_MASK (((1ULL << KFD_GPU_ID_HASH_WIDTH) - 1) \ 65df03ef93SHarish Kasiviswanathan << KFD_MMAP_GPU_ID_SHIFT) 66df03ef93SHarish Kasiviswanathan #define KFD_MMAP_GPU_ID(gpu_id) ((((uint64_t)gpu_id) << KFD_MMAP_GPU_ID_SHIFT)\ 67df03ef93SHarish Kasiviswanathan & KFD_MMAP_GPU_ID_MASK) 68df03ef93SHarish Kasiviswanathan #define KFD_MMAP_GPU_ID_GET(offset) ((offset & KFD_MMAP_GPU_ID_MASK) \ 69df03ef93SHarish Kasiviswanathan >> KFD_MMAP_GPU_ID_SHIFT) 70df03ef93SHarish Kasiviswanathan 71df03ef93SHarish Kasiviswanathan #define KFD_MMAP_OFFSET_VALUE_MASK (0x3FFFFFFFFFFFULL >> PAGE_SHIFT) 72df03ef93SHarish Kasiviswanathan #define KFD_MMAP_OFFSET_VALUE_GET(offset) (offset & KFD_MMAP_OFFSET_VALUE_MASK) 73f3a39818SAndrew Lewycky 74ed6e6a34SBen Goz /* 75ed6e6a34SBen Goz * When working with cp scheduler we should assign the HIQ manually or via 76e7016d8eSYong Zhao * the amdgpu driver to a fixed hqd slot, here are the fixed HIQ hqd slot 77ed6e6a34SBen Goz * definitions for Kaveri. In Kaveri only the first ME queues participates 78ed6e6a34SBen Goz * in the cp scheduling taking that in mind we set the HIQ slot in the 79ed6e6a34SBen Goz * second ME. 80ed6e6a34SBen Goz */ 81ed6e6a34SBen Goz #define KFD_CIK_HIQ_PIPE 4 82ed6e6a34SBen Goz #define KFD_CIK_HIQ_QUEUE 0 83ed6e6a34SBen Goz 845b5c4e40SEvgeny Pinchuk /* Macro for allocating structures */ 855b5c4e40SEvgeny Pinchuk #define kfd_alloc_struct(ptr_to_struct) \ 865b5c4e40SEvgeny Pinchuk ((typeof(ptr_to_struct)) kzalloc(sizeof(*ptr_to_struct), GFP_KERNEL)) 875b5c4e40SEvgeny Pinchuk 8819f6d2a6SOded Gabbay #define KFD_MAX_NUM_OF_PROCESSES 512 89b8cbab04SOded Gabbay #define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS 1024 9019f6d2a6SOded Gabbay 9119f6d2a6SOded Gabbay /* 92373d7080SFelix Kuehling * Size of the per-process TBA+TMA buffer: 2 pages 93373d7080SFelix Kuehling * 94373d7080SFelix Kuehling * The first page is the TBA used for the CWSR ISA code. The second 95373d7080SFelix Kuehling * page is used as TMA for daisy changing a user-mode trap handler. 96373d7080SFelix Kuehling */ 97373d7080SFelix Kuehling #define KFD_CWSR_TBA_TMA_SIZE (PAGE_SIZE * 2) 98373d7080SFelix Kuehling #define KFD_CWSR_TMA_OFFSET PAGE_SIZE 99373d7080SFelix Kuehling 10074523943SYong Zhao #define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE \ 10174523943SYong Zhao (KFD_MAX_NUM_OF_PROCESSES * \ 10274523943SYong Zhao KFD_MAX_NUM_OF_QUEUES_PER_PROCESS) 10374523943SYong Zhao 10474523943SYong Zhao #define KFD_KERNEL_QUEUE_SIZE 2048 10574523943SYong Zhao 106373d7080SFelix Kuehling /* 1071f86805aSYong Zhao * 512 = 0x200 1081f86805aSYong Zhao * The doorbell index distance between SDMA RLC (2*i) and (2*i+1) in the 1091f86805aSYong Zhao * same SDMA engine on SOC15, which has 8-byte doorbells for SDMA. 1101f86805aSYong Zhao * 512 8-byte doorbell distance (i.e. one page away) ensures that SDMA RLC 1111f86805aSYong Zhao * (2*i+1) doorbells (in terms of the lower 12 bit address) lie exactly in 1121f86805aSYong Zhao * the OFFSET and SIZE set in registers like BIF_SDMA0_DOORBELL_RANGE. 1131f86805aSYong Zhao */ 1141f86805aSYong Zhao #define KFD_QUEUE_DOORBELL_MIRROR_OFFSET 512 1151f86805aSYong Zhao 1161f86805aSYong Zhao 1171f86805aSYong Zhao /* 118b8cbab04SOded Gabbay * Kernel module parameter to specify maximum number of supported queues per 119b8cbab04SOded Gabbay * device 12019f6d2a6SOded Gabbay */ 121b8cbab04SOded Gabbay extern int max_num_of_queues_per_device; 12219f6d2a6SOded Gabbay 123ed6e6a34SBen Goz 12431c21fecSBen Goz /* Kernel module parameter to specify the scheduling policy */ 12531c21fecSBen Goz extern int sched_policy; 12631c21fecSBen Goz 127a99c6d4fSFelix Kuehling /* 128a99c6d4fSFelix Kuehling * Kernel module parameter to specify the maximum process 129a99c6d4fSFelix Kuehling * number per HW scheduler 130a99c6d4fSFelix Kuehling */ 131a99c6d4fSFelix Kuehling extern int hws_max_conc_proc; 132a99c6d4fSFelix Kuehling 133373d7080SFelix Kuehling extern int cwsr_enable; 134373d7080SFelix Kuehling 13581663016SOded Gabbay /* 13681663016SOded Gabbay * Kernel module parameter to specify whether to send sigterm to HSA process on 13781663016SOded Gabbay * unhandled exception 13881663016SOded Gabbay */ 13981663016SOded Gabbay extern int send_sigterm; 14081663016SOded Gabbay 141ebcfd1e2SFelix Kuehling /* 142374200b1SFelix Kuehling * This kernel module is used to simulate large bar machine on non-large bar 143374200b1SFelix Kuehling * enabled machines. 144374200b1SFelix Kuehling */ 145374200b1SFelix Kuehling extern int debug_largebar; 146374200b1SFelix Kuehling 147374200b1SFelix Kuehling /* 148ebcfd1e2SFelix Kuehling * Ignore CRAT table during KFD initialization, can be used to work around 149ebcfd1e2SFelix Kuehling * broken CRAT tables on some AMD systems 150ebcfd1e2SFelix Kuehling */ 151ebcfd1e2SFelix Kuehling extern int ignore_crat; 152ebcfd1e2SFelix Kuehling 153bed4f110SFelix Kuehling /* 154bed4f110SFelix Kuehling * Set sh_mem_config.retry_disable on Vega10 155bed4f110SFelix Kuehling */ 1562b281977SYong Zhao extern int noretry; 157bed4f110SFelix Kuehling 1580e9a860cSYong Zhao /* 1590e9a860cSYong Zhao * Halt if HWS hang is detected 1600e9a860cSYong Zhao */ 1610e9a860cSYong Zhao extern int halt_if_hws_hang; 1620e9a860cSYong Zhao 163ed6e6a34SBen Goz enum cache_policy { 164ed6e6a34SBen Goz cache_policy_coherent, 165ed6e6a34SBen Goz cache_policy_noncoherent 166ed6e6a34SBen Goz }; 167ed6e6a34SBen Goz 168ef568db7SFelix Kuehling #define KFD_IS_SOC15(chip) ((chip) >= CHIP_VEGA10) 169ef568db7SFelix Kuehling 170f3a39818SAndrew Lewycky struct kfd_event_interrupt_class { 171f3a39818SAndrew Lewycky bool (*interrupt_isr)(struct kfd_dev *dev, 17258e69886SLan Xiao const uint32_t *ih_ring_entry, uint32_t *patched_ihre, 17358e69886SLan Xiao bool *patched_flag); 174f3a39818SAndrew Lewycky void (*interrupt_wq)(struct kfd_dev *dev, 175f3a39818SAndrew Lewycky const uint32_t *ih_ring_entry); 176f3a39818SAndrew Lewycky }; 177f3a39818SAndrew Lewycky 1784a488a7aSOded Gabbay struct kfd_device_info { 179e596b903SYong Zhao enum amd_asic_type asic_family; 180f3a39818SAndrew Lewycky const struct kfd_event_interrupt_class *event_interrupt_class; 1814a488a7aSOded Gabbay unsigned int max_pasid_bits; 182992839adSYair Shachar unsigned int max_no_of_hqd; 183ada2b29cSFelix Kuehling unsigned int doorbell_size; 1844a488a7aSOded Gabbay size_t ih_ring_entry_size; 185f7c826adSAlexey Skidanov uint8_t num_of_watch_points; 18619f6d2a6SOded Gabbay uint16_t mqd_size_aligned; 187373d7080SFelix Kuehling bool supports_cwsr; 18864d1c3a4SFelix Kuehling bool needs_iommu_device; 1893ee2d00cSFelix Kuehling bool needs_pci_atomics; 19098bb9222SYong Zhao unsigned int num_sdma_engines; 191d5094189SShaoyun Liu unsigned int num_sdma_queues_per_engine; 1924a488a7aSOded Gabbay }; 1934a488a7aSOded Gabbay 19436b5c08fSOded Gabbay struct kfd_mem_obj { 19536b5c08fSOded Gabbay uint32_t range_start; 19636b5c08fSOded Gabbay uint32_t range_end; 19736b5c08fSOded Gabbay uint64_t gpu_addr; 19836b5c08fSOded Gabbay uint32_t *cpu_ptr; 199b91d43ddSFelix Kuehling void *gtt_mem; 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 2635ade6c9cSFelix Kuehling /* Firmware versions */ 2645ade6c9cSFelix Kuehling uint16_t mec_fw_version; 2655ade6c9cSFelix Kuehling uint16_t sdma_fw_version; 2665ade6c9cSFelix Kuehling 267a99c6d4fSFelix Kuehling /* Maximum process number mapped to HW scheduler */ 268a99c6d4fSFelix Kuehling unsigned int max_proc_per_quantum; 269a99c6d4fSFelix Kuehling 270373d7080SFelix Kuehling /* CWSR */ 271373d7080SFelix Kuehling bool cwsr_enabled; 272373d7080SFelix Kuehling const void *cwsr_isa; 273373d7080SFelix Kuehling unsigned int cwsr_isa_size; 2740c1690e3SShaoyun Liu 2750c1690e3SShaoyun Liu /* xGMI */ 2760c1690e3SShaoyun Liu uint64_t hive_id; 277d35f00d8SEric Huang 278d35f00d8SEric Huang bool pci_atomic_requested; 2794a488a7aSOded Gabbay }; 2804a488a7aSOded Gabbay 28119f6d2a6SOded Gabbay enum kfd_mempool { 28219f6d2a6SOded Gabbay KFD_MEMPOOL_SYSTEM_CACHEABLE = 1, 28319f6d2a6SOded Gabbay KFD_MEMPOOL_SYSTEM_WRITECOMBINE = 2, 28419f6d2a6SOded Gabbay KFD_MEMPOOL_FRAMEBUFFER = 3, 28519f6d2a6SOded Gabbay }; 28619f6d2a6SOded Gabbay 2874a488a7aSOded Gabbay /* Character device interface */ 2884a488a7aSOded Gabbay int kfd_chardev_init(void); 2894a488a7aSOded Gabbay void kfd_chardev_exit(void); 2904a488a7aSOded Gabbay struct device *kfd_chardev(void); 2914a488a7aSOded Gabbay 292241f24f8SBen Goz /** 2937da2bcf8SYong Zhao * enum kfd_unmap_queues_filter 294241f24f8SBen Goz * 2957da2bcf8SYong Zhao * @KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE: Preempts single queue. 296241f24f8SBen Goz * 2977da2bcf8SYong Zhao * @KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES: Preempts all queues in the 298241f24f8SBen Goz * running queues list. 299241f24f8SBen Goz * 3007da2bcf8SYong Zhao * @KFD_UNMAP_QUEUES_FILTER_BY_PASID: Preempts queues that belongs to 301241f24f8SBen Goz * specific process. 302241f24f8SBen Goz * 303241f24f8SBen Goz */ 3047da2bcf8SYong Zhao enum kfd_unmap_queues_filter { 3057da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE, 3067da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES, 3077da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 3087da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_BY_PASID 309241f24f8SBen Goz }; 31019f6d2a6SOded Gabbay 311ed8aab45SBen Goz /** 312ed8aab45SBen Goz * enum kfd_queue_type 313ed8aab45SBen Goz * 314ed8aab45SBen Goz * @KFD_QUEUE_TYPE_COMPUTE: Regular user mode queue type. 315ed8aab45SBen Goz * 316ed8aab45SBen Goz * @KFD_QUEUE_TYPE_SDMA: Sdma user mode queue type. 317ed8aab45SBen Goz * 318ed8aab45SBen Goz * @KFD_QUEUE_TYPE_HIQ: HIQ queue type. 319ed8aab45SBen Goz * 320ed8aab45SBen Goz * @KFD_QUEUE_TYPE_DIQ: DIQ queue type. 321ed8aab45SBen Goz */ 322ed8aab45SBen Goz enum kfd_queue_type { 323ed8aab45SBen Goz KFD_QUEUE_TYPE_COMPUTE, 324ed8aab45SBen Goz KFD_QUEUE_TYPE_SDMA, 325ed8aab45SBen Goz KFD_QUEUE_TYPE_HIQ, 326ed8aab45SBen Goz KFD_QUEUE_TYPE_DIQ 327ed8aab45SBen Goz }; 328ed8aab45SBen Goz 3296e99df57SBen Goz enum kfd_queue_format { 3306e99df57SBen Goz KFD_QUEUE_FORMAT_PM4, 3316e99df57SBen Goz KFD_QUEUE_FORMAT_AQL 3326e99df57SBen Goz }; 3336e99df57SBen Goz 334ed8aab45SBen Goz /** 335ed8aab45SBen Goz * struct queue_properties 336ed8aab45SBen Goz * 337ed8aab45SBen Goz * @type: The queue type. 338ed8aab45SBen Goz * 339ed8aab45SBen Goz * @queue_id: Queue identifier. 340ed8aab45SBen Goz * 341ed8aab45SBen Goz * @queue_address: Queue ring buffer address. 342ed8aab45SBen Goz * 343ed8aab45SBen Goz * @queue_size: Queue ring buffer size. 344ed8aab45SBen Goz * 345ed8aab45SBen Goz * @priority: Defines the queue priority relative to other queues in the 346ed8aab45SBen Goz * process. 347ed8aab45SBen Goz * This is just an indication and HW scheduling may override the priority as 348ed8aab45SBen Goz * necessary while keeping the relative prioritization. 349ed8aab45SBen Goz * the priority granularity is from 0 to f which f is the highest priority. 350ed8aab45SBen Goz * currently all queues are initialized with the highest priority. 351ed8aab45SBen Goz * 352ed8aab45SBen Goz * @queue_percent: This field is partially implemented and currently a zero in 353ed8aab45SBen Goz * this field defines that the queue is non active. 354ed8aab45SBen Goz * 355ed8aab45SBen Goz * @read_ptr: User space address which points to the number of dwords the 356ed8aab45SBen Goz * cp read from the ring buffer. This field updates automatically by the H/W. 357ed8aab45SBen Goz * 358ed8aab45SBen Goz * @write_ptr: Defines the number of dwords written to the ring buffer. 359ed8aab45SBen Goz * 360ed8aab45SBen Goz * @doorbell_ptr: This field aim is to notify the H/W of new packet written to 3618eabaf54SKent Russell * the queue ring buffer. This field should be similar to write_ptr and the 3628eabaf54SKent Russell * user should update this field after he updated the write_ptr. 363ed8aab45SBen Goz * 364ed8aab45SBen Goz * @doorbell_off: The doorbell offset in the doorbell pci-bar. 365ed8aab45SBen Goz * 3668eabaf54SKent Russell * @is_interop: Defines if this is a interop queue. Interop queue means that 3678eabaf54SKent Russell * the queue can access both graphics and compute resources. 368ed8aab45SBen Goz * 36926103436SFelix Kuehling * @is_evicted: Defines if the queue is evicted. Only active queues 37026103436SFelix Kuehling * are evicted, rendering them inactive. 37126103436SFelix Kuehling * 37226103436SFelix Kuehling * @is_active: Defines if the queue is active or not. @is_active and 37326103436SFelix Kuehling * @is_evicted are protected by the DQM lock. 374ed8aab45SBen Goz * 375ed8aab45SBen Goz * @vmid: If the scheduling mode is no cp scheduling the field defines the vmid 376ed8aab45SBen Goz * of the queue. 377ed8aab45SBen Goz * 378ed8aab45SBen Goz * This structure represents the queue properties for each queue no matter if 379ed8aab45SBen Goz * it's user mode or kernel mode queue. 380ed8aab45SBen Goz * 381ed8aab45SBen Goz */ 382ed8aab45SBen Goz struct queue_properties { 383ed8aab45SBen Goz enum kfd_queue_type type; 3846e99df57SBen Goz enum kfd_queue_format format; 385ed8aab45SBen Goz unsigned int queue_id; 386ed8aab45SBen Goz uint64_t queue_address; 387ed8aab45SBen Goz uint64_t queue_size; 388ed8aab45SBen Goz uint32_t priority; 389ed8aab45SBen Goz uint32_t queue_percent; 390ed8aab45SBen Goz uint32_t *read_ptr; 391ed8aab45SBen Goz uint32_t *write_ptr; 392ada2b29cSFelix Kuehling void __iomem *doorbell_ptr; 393ed8aab45SBen Goz uint32_t doorbell_off; 394ed8aab45SBen Goz bool is_interop; 39526103436SFelix Kuehling bool is_evicted; 396ed8aab45SBen Goz bool is_active; 397ed8aab45SBen Goz /* Not relevant for user mode queues in cp scheduling */ 398ed8aab45SBen Goz unsigned int vmid; 39977669eb8SBen Goz /* Relevant only for sdma queues*/ 40077669eb8SBen Goz uint32_t sdma_engine_id; 40177669eb8SBen Goz uint32_t sdma_queue_id; 40277669eb8SBen Goz uint32_t sdma_vm_addr; 403ff3d04a1SBen Goz /* Relevant only for VI */ 404ff3d04a1SBen Goz uint64_t eop_ring_buffer_address; 405ff3d04a1SBen Goz uint32_t eop_ring_buffer_size; 406ff3d04a1SBen Goz uint64_t ctx_save_restore_area_address; 407ff3d04a1SBen Goz uint32_t ctx_save_restore_area_size; 408373d7080SFelix Kuehling uint32_t ctl_stack_size; 409373d7080SFelix Kuehling uint64_t tba_addr; 410373d7080SFelix Kuehling uint64_t tma_addr; 41139e7f331SFelix Kuehling /* Relevant for CU */ 41239e7f331SFelix Kuehling uint32_t cu_mask_count; /* Must be a multiple of 32 */ 41339e7f331SFelix Kuehling uint32_t *cu_mask; 414ed8aab45SBen Goz }; 415ed8aab45SBen Goz 416ed8aab45SBen Goz /** 417ed8aab45SBen Goz * struct queue 418ed8aab45SBen Goz * 419ed8aab45SBen Goz * @list: Queue linked list. 420ed8aab45SBen Goz * 421ed8aab45SBen Goz * @mqd: The queue MQD. 422ed8aab45SBen Goz * 423ed8aab45SBen Goz * @mqd_mem_obj: The MQD local gpu memory object. 424ed8aab45SBen Goz * 425ed8aab45SBen Goz * @gart_mqd_addr: The MQD gart mc address. 426ed8aab45SBen Goz * 427ed8aab45SBen Goz * @properties: The queue properties. 428ed8aab45SBen Goz * 429ed8aab45SBen Goz * @mec: Used only in no cp scheduling mode and identifies to micro engine id 430ed8aab45SBen Goz * that the queue should be execute on. 431ed8aab45SBen Goz * 4328eabaf54SKent Russell * @pipe: Used only in no cp scheduling mode and identifies the queue's pipe 4338eabaf54SKent Russell * id. 434ed8aab45SBen Goz * 435ed8aab45SBen Goz * @queue: Used only in no cp scheduliong mode and identifies the queue's slot. 436ed8aab45SBen Goz * 437ed8aab45SBen Goz * @process: The kfd process that created this queue. 438ed8aab45SBen Goz * 439ed8aab45SBen Goz * @device: The kfd device that created this queue. 440ed8aab45SBen Goz * 441ed8aab45SBen Goz * This structure represents user mode compute queues. 442ed8aab45SBen Goz * It contains all the necessary data to handle such queues. 443ed8aab45SBen Goz * 444ed8aab45SBen Goz */ 445ed8aab45SBen Goz 446ed8aab45SBen Goz struct queue { 447ed8aab45SBen Goz struct list_head list; 448ed8aab45SBen Goz void *mqd; 449ed8aab45SBen Goz struct kfd_mem_obj *mqd_mem_obj; 450ed8aab45SBen Goz uint64_t gart_mqd_addr; 451ed8aab45SBen Goz struct queue_properties properties; 452ed8aab45SBen Goz 453ed8aab45SBen Goz uint32_t mec; 454ed8aab45SBen Goz uint32_t pipe; 455ed8aab45SBen Goz uint32_t queue; 456ed8aab45SBen Goz 45777669eb8SBen Goz unsigned int sdma_id; 458ef568db7SFelix Kuehling unsigned int doorbell_id; 45977669eb8SBen Goz 460ed8aab45SBen Goz struct kfd_process *process; 461ed8aab45SBen Goz struct kfd_dev *device; 462ed8aab45SBen Goz }; 463ed8aab45SBen Goz 4646e99df57SBen Goz /* 4656e99df57SBen Goz * Please read the kfd_mqd_manager.h description. 4666e99df57SBen Goz */ 4676e99df57SBen Goz enum KFD_MQD_TYPE { 46885d258f9SBen Goz KFD_MQD_TYPE_COMPUTE = 0, /* for no cp scheduling */ 46985d258f9SBen Goz KFD_MQD_TYPE_HIQ, /* for hiq */ 47085d258f9SBen Goz KFD_MQD_TYPE_CP, /* for cp queues and diq */ 47185d258f9SBen Goz KFD_MQD_TYPE_SDMA, /* for sdma queues */ 4726e99df57SBen Goz KFD_MQD_TYPE_MAX 4736e99df57SBen Goz }; 4746e99df57SBen Goz 475241f24f8SBen Goz struct scheduling_resources { 476241f24f8SBen Goz unsigned int vmid_mask; 477241f24f8SBen Goz enum kfd_queue_type type; 478241f24f8SBen Goz uint64_t queue_mask; 479241f24f8SBen Goz uint64_t gws_mask; 480241f24f8SBen Goz uint32_t oac_mask; 481241f24f8SBen Goz uint32_t gds_heap_base; 482241f24f8SBen Goz uint32_t gds_heap_size; 483241f24f8SBen Goz }; 484241f24f8SBen Goz 485241f24f8SBen Goz struct process_queue_manager { 486241f24f8SBen Goz /* data */ 487241f24f8SBen Goz struct kfd_process *process; 488241f24f8SBen Goz struct list_head queues; 489241f24f8SBen Goz unsigned long *queue_slot_bitmap; 490241f24f8SBen Goz }; 491241f24f8SBen Goz 492241f24f8SBen Goz struct qcm_process_device { 493241f24f8SBen Goz /* The Device Queue Manager that owns this data */ 494241f24f8SBen Goz struct device_queue_manager *dqm; 495241f24f8SBen Goz struct process_queue_manager *pqm; 496241f24f8SBen Goz /* Queues list */ 497241f24f8SBen Goz struct list_head queues_list; 498241f24f8SBen Goz struct list_head priv_queue_list; 499241f24f8SBen Goz 500241f24f8SBen Goz unsigned int queue_count; 501241f24f8SBen Goz unsigned int vmid; 502241f24f8SBen Goz bool is_debug; 50326103436SFelix Kuehling unsigned int evicted; /* eviction counter, 0=active */ 5049fd3f1bfSFelix Kuehling 5059fd3f1bfSFelix Kuehling /* This flag tells if we should reset all wavefronts on 5069fd3f1bfSFelix Kuehling * process termination 5079fd3f1bfSFelix Kuehling */ 5089fd3f1bfSFelix Kuehling bool reset_wavefronts; 5099fd3f1bfSFelix Kuehling 510241f24f8SBen Goz /* 511241f24f8SBen Goz * All the memory management data should be here too 512241f24f8SBen Goz */ 513241f24f8SBen Goz uint64_t gds_context_area; 514435e2f97SYong Zhao /* Contains page table flags such as AMDGPU_PTE_VALID since gfx9 */ 515e715c6d0SShaoyun Liu uint64_t page_table_base; 516241f24f8SBen Goz uint32_t sh_mem_config; 517241f24f8SBen Goz uint32_t sh_mem_bases; 518241f24f8SBen Goz uint32_t sh_mem_ape1_base; 519241f24f8SBen Goz uint32_t sh_mem_ape1_limit; 520241f24f8SBen Goz uint32_t gds_size; 521241f24f8SBen Goz uint32_t num_gws; 522241f24f8SBen Goz uint32_t num_oac; 5236a1c9510SMoses Reuben uint32_t sh_hidden_private_base; 524373d7080SFelix Kuehling 525373d7080SFelix Kuehling /* CWSR memory */ 526373d7080SFelix Kuehling void *cwsr_kaddr; 527d01994c2SFelix Kuehling uint64_t cwsr_base; 528373d7080SFelix Kuehling uint64_t tba_addr; 529373d7080SFelix Kuehling uint64_t tma_addr; 530d01994c2SFelix Kuehling 531d01994c2SFelix Kuehling /* IB memory */ 532d01994c2SFelix Kuehling uint64_t ib_base; 533552764b6SFelix Kuehling void *ib_kaddr; 534ef568db7SFelix Kuehling 535ef568db7SFelix Kuehling /* doorbell resources per process per device */ 536ef568db7SFelix Kuehling unsigned long *doorbell_bitmap; 537241f24f8SBen Goz }; 538241f24f8SBen Goz 53926103436SFelix Kuehling /* KFD Memory Eviction */ 54026103436SFelix Kuehling 54126103436SFelix Kuehling /* Approx. wait time before attempting to restore evicted BOs */ 54226103436SFelix Kuehling #define PROCESS_RESTORE_TIME_MS 100 54326103436SFelix Kuehling /* Approx. back off time if restore fails due to lack of memory */ 54426103436SFelix Kuehling #define PROCESS_BACK_OFF_TIME_MS 100 54526103436SFelix Kuehling /* Approx. time before evicting the process again */ 54626103436SFelix Kuehling #define PROCESS_ACTIVE_TIME_MS 10 54726103436SFelix Kuehling 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 }; 70667f7cf9fSshaoyunl bool kfd_dev_is_large_bar(struct kfd_dev *dev); 70776baee6cSOded Gabbay 7081679ae8fSFelix Kuehling int kfd_process_create_wq(void); 70919f6d2a6SOded Gabbay void kfd_process_destroy_wq(void); 710373d7080SFelix Kuehling struct kfd_process *kfd_create_process(struct file *filep); 71119f6d2a6SOded Gabbay struct kfd_process *kfd_get_process(const struct task_struct *); 712f3a39818SAndrew Lewycky struct kfd_process *kfd_lookup_process_by_pasid(unsigned int pasid); 71326103436SFelix Kuehling struct kfd_process *kfd_lookup_process_by_mm(const struct mm_struct *mm); 714abb208a8SFelix Kuehling void kfd_unref_process(struct kfd_process *p); 7156b95e797SFelix Kuehling int kfd_process_evict_queues(struct kfd_process *p); 7166b95e797SFelix Kuehling int kfd_process_restore_queues(struct kfd_process *p); 71726103436SFelix Kuehling void kfd_suspend_all_processes(void); 71826103436SFelix Kuehling int kfd_resume_all_processes(void); 71919f6d2a6SOded Gabbay 720b84394e2SFelix Kuehling int kfd_process_device_init_vm(struct kfd_process_device *pdd, 721b84394e2SFelix Kuehling struct file *drm_file); 72264c7f8cfSBen Goz struct kfd_process_device *kfd_bind_process_to_device(struct kfd_dev *dev, 72364c7f8cfSBen Goz struct kfd_process *p); 72419f6d2a6SOded Gabbay struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev, 725093c7d8cSAlexey Skidanov struct kfd_process *p); 726093c7d8cSAlexey Skidanov struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, 727093c7d8cSAlexey Skidanov struct kfd_process *p); 72819f6d2a6SOded Gabbay 729df03ef93SHarish Kasiviswanathan int kfd_reserved_mem_mmap(struct kfd_dev *dev, struct kfd_process *process, 730373d7080SFelix Kuehling struct vm_area_struct *vma); 731373d7080SFelix Kuehling 73252b29d73SFelix Kuehling /* KFD process API for creating and translating handles */ 73352b29d73SFelix Kuehling int kfd_process_device_create_obj_handle(struct kfd_process_device *pdd, 73452b29d73SFelix Kuehling void *mem); 73552b29d73SFelix Kuehling void *kfd_process_device_translate_handle(struct kfd_process_device *p, 73652b29d73SFelix Kuehling int handle); 73752b29d73SFelix Kuehling void kfd_process_device_remove_obj_handle(struct kfd_process_device *pdd, 73852b29d73SFelix Kuehling int handle); 73952b29d73SFelix Kuehling 740775921edSAlexey Skidanov /* Process device data iterator */ 7418eabaf54SKent Russell struct kfd_process_device *kfd_get_first_process_device_data( 7428eabaf54SKent Russell struct kfd_process *p); 7438eabaf54SKent Russell struct kfd_process_device *kfd_get_next_process_device_data( 7448eabaf54SKent Russell struct kfd_process *p, 745775921edSAlexey Skidanov struct kfd_process_device *pdd); 746775921edSAlexey Skidanov bool kfd_has_process_device_data(struct kfd_process *p); 747775921edSAlexey Skidanov 74819f6d2a6SOded Gabbay /* PASIDs */ 74919f6d2a6SOded Gabbay int kfd_pasid_init(void); 75019f6d2a6SOded Gabbay void kfd_pasid_exit(void); 75119f6d2a6SOded Gabbay bool kfd_set_pasid_limit(unsigned int new_limit); 75219f6d2a6SOded Gabbay unsigned int kfd_get_pasid_limit(void); 75319f6d2a6SOded Gabbay unsigned int kfd_pasid_alloc(void); 75419f6d2a6SOded Gabbay void kfd_pasid_free(unsigned int pasid); 75519f6d2a6SOded Gabbay 75619f6d2a6SOded Gabbay /* Doorbells */ 757ef568db7SFelix Kuehling size_t kfd_doorbell_process_slice(struct kfd_dev *kfd); 758735df2baSFelix Kuehling int kfd_doorbell_init(struct kfd_dev *kfd); 759735df2baSFelix Kuehling void kfd_doorbell_fini(struct kfd_dev *kfd); 760df03ef93SHarish Kasiviswanathan int kfd_doorbell_mmap(struct kfd_dev *dev, struct kfd_process *process, 761df03ef93SHarish Kasiviswanathan struct vm_area_struct *vma); 762ada2b29cSFelix Kuehling void __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, 76319f6d2a6SOded Gabbay unsigned int *doorbell_off); 76419f6d2a6SOded Gabbay void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr); 76519f6d2a6SOded Gabbay u32 read_kernel_doorbell(u32 __iomem *db); 766ada2b29cSFelix Kuehling void write_kernel_doorbell(void __iomem *db, u32 value); 7679d7d0248SFelix Kuehling void write_kernel_doorbell64(void __iomem *db, u64 value); 768ef568db7SFelix Kuehling unsigned int kfd_doorbell_id_to_offset(struct kfd_dev *kfd, 76919f6d2a6SOded Gabbay struct kfd_process *process, 770ef568db7SFelix Kuehling unsigned int doorbell_id); 771a91e70e3SFelix Kuehling phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev, 772a91e70e3SFelix Kuehling struct kfd_process *process); 773a91e70e3SFelix Kuehling int kfd_alloc_process_doorbells(struct kfd_process *process); 774a91e70e3SFelix Kuehling void kfd_free_process_doorbells(struct kfd_process *process); 77519f6d2a6SOded Gabbay 7766e81090bSOded Gabbay /* GTT Sub-Allocator */ 7776e81090bSOded Gabbay 7786e81090bSOded Gabbay int kfd_gtt_sa_allocate(struct kfd_dev *kfd, unsigned int size, 7796e81090bSOded Gabbay struct kfd_mem_obj **mem_obj); 7806e81090bSOded Gabbay 7816e81090bSOded Gabbay int kfd_gtt_sa_free(struct kfd_dev *kfd, struct kfd_mem_obj *mem_obj); 7826e81090bSOded Gabbay 7834a488a7aSOded Gabbay extern struct device *kfd_device; 7844a488a7aSOded Gabbay 7855b5c4e40SEvgeny Pinchuk /* Topology */ 7865b5c4e40SEvgeny Pinchuk int kfd_topology_init(void); 7875b5c4e40SEvgeny Pinchuk void kfd_topology_shutdown(void); 7885b5c4e40SEvgeny Pinchuk int kfd_topology_add_device(struct kfd_dev *gpu); 7895b5c4e40SEvgeny Pinchuk int kfd_topology_remove_device(struct kfd_dev *gpu); 7903a87177eSHarish Kasiviswanathan struct kfd_topology_device *kfd_topology_device_by_proximity_domain( 7913a87177eSHarish Kasiviswanathan uint32_t proximity_domain); 79244d8cc6fSYong Zhao struct kfd_topology_device *kfd_topology_device_by_id(uint32_t gpu_id); 7935b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_id(uint32_t gpu_id); 7945b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev); 7951dde0ea9SFelix Kuehling struct kfd_dev *kfd_device_by_kgd(const struct kgd_dev *kgd); 7966d82eb0eSHarish Kasiviswanathan int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_dev **kdev); 797520b8fb7SFelix Kuehling int kfd_numa_node_to_apic_id(int numa_node_id); 7985b5c4e40SEvgeny Pinchuk 7994a488a7aSOded Gabbay /* Interrupts */ 8002249d558SAndrew Lewycky int kfd_interrupt_init(struct kfd_dev *dev); 8012249d558SAndrew Lewycky void kfd_interrupt_exit(struct kfd_dev *dev); 8022249d558SAndrew Lewycky bool enqueue_ih_ring_entry(struct kfd_dev *kfd, const void *ih_ring_entry); 80358e69886SLan Xiao bool interrupt_is_wanted(struct kfd_dev *dev, 80458e69886SLan Xiao const uint32_t *ih_ring_entry, 80558e69886SLan Xiao uint32_t *patched_ihre, bool *flag); 8064a488a7aSOded Gabbay 80719f6d2a6SOded Gabbay /* amdkfd Apertures */ 80819f6d2a6SOded Gabbay int kfd_init_apertures(struct kfd_process *process); 80919f6d2a6SOded Gabbay 810ed6e6a34SBen Goz /* Queue Context Management */ 811e88a614cSEdward O'Callaghan int init_queue(struct queue **q, const struct queue_properties *properties); 812ed6e6a34SBen Goz void uninit_queue(struct queue *q); 81345102048SBen Goz void print_queue_properties(struct queue_properties *q); 814ed6e6a34SBen Goz void print_queue(struct queue *q); 815ed6e6a34SBen Goz 81664c7f8cfSBen Goz struct mqd_manager *mqd_manager_init(enum KFD_MQD_TYPE type, 81764c7f8cfSBen Goz struct kfd_dev *dev); 8184b8f589bSBen Goz struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type, 8194b8f589bSBen Goz struct kfd_dev *dev); 820ee04955aSFelix Kuehling struct mqd_manager *mqd_manager_init_cik_hawaii(enum KFD_MQD_TYPE type, 821ee04955aSFelix Kuehling struct kfd_dev *dev); 8224b8f589bSBen Goz struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type, 8234b8f589bSBen Goz struct kfd_dev *dev); 824ee04955aSFelix Kuehling struct mqd_manager *mqd_manager_init_vi_tonga(enum KFD_MQD_TYPE type, 825ee04955aSFelix Kuehling struct kfd_dev *dev); 826b91d43ddSFelix Kuehling struct mqd_manager *mqd_manager_init_v9(enum KFD_MQD_TYPE type, 827b91d43ddSFelix Kuehling struct kfd_dev *dev); 82864c7f8cfSBen Goz struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev); 82964c7f8cfSBen Goz void device_queue_manager_uninit(struct device_queue_manager *dqm); 830241f24f8SBen Goz struct kernel_queue *kernel_queue_init(struct kfd_dev *dev, 831241f24f8SBen Goz enum kfd_queue_type type); 832241f24f8SBen Goz void kernel_queue_uninit(struct kernel_queue *kq); 8332640c3faSshaoyunl int kfd_process_vm_fault(struct device_queue_manager *dqm, unsigned int pasid); 834241f24f8SBen Goz 83545102048SBen Goz /* Process Queue Manager */ 83645102048SBen Goz struct process_queue_node { 83745102048SBen Goz struct queue *q; 83845102048SBen Goz struct kernel_queue *kq; 83945102048SBen Goz struct list_head process_queue_list; 84045102048SBen Goz }; 84145102048SBen Goz 8429fd3f1bfSFelix Kuehling void kfd_process_dequeue_from_device(struct kfd_process_device *pdd); 8439fd3f1bfSFelix Kuehling void kfd_process_dequeue_from_all_devices(struct kfd_process *p); 84445102048SBen Goz int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p); 84545102048SBen Goz void pqm_uninit(struct process_queue_manager *pqm); 84645102048SBen Goz int pqm_create_queue(struct process_queue_manager *pqm, 84745102048SBen Goz struct kfd_dev *dev, 84845102048SBen Goz struct file *f, 84945102048SBen Goz struct queue_properties *properties, 85045102048SBen Goz unsigned int *qid); 85145102048SBen Goz int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid); 85245102048SBen Goz int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid, 85345102048SBen Goz struct queue_properties *p); 85439e7f331SFelix Kuehling int pqm_set_cu_mask(struct process_queue_manager *pqm, unsigned int qid, 85539e7f331SFelix Kuehling struct queue_properties *p); 856fbeb661bSYair Shachar struct kernel_queue *pqm_get_kernel_queue(struct process_queue_manager *pqm, 857fbeb661bSYair Shachar unsigned int qid); 8585df099e8SJay Cornwall int pqm_get_wave_state(struct process_queue_manager *pqm, 8595df099e8SJay Cornwall unsigned int qid, 8605df099e8SJay Cornwall void __user *ctl_stack, 8615df099e8SJay Cornwall u32 *ctl_stack_used_size, 8625df099e8SJay Cornwall u32 *save_area_used_size); 86345102048SBen Goz 864788bf83dSYair Shachar int amdkfd_fence_wait_timeout(unsigned int *fence_addr, 865788bf83dSYair Shachar unsigned int fence_value, 8668c72c3d7SYong Zhao unsigned int timeout_ms); 867788bf83dSYair Shachar 868ed6e6a34SBen Goz /* Packet Manager */ 869ed6e6a34SBen Goz 87064c7f8cfSBen Goz #define KFD_FENCE_COMPLETED (100) 87164c7f8cfSBen Goz #define KFD_FENCE_INIT (10) 872241f24f8SBen Goz 873ed6e6a34SBen Goz struct packet_manager { 874ed6e6a34SBen Goz struct device_queue_manager *dqm; 875ed6e6a34SBen Goz struct kernel_queue *priv_queue; 876ed6e6a34SBen Goz struct mutex lock; 877ed6e6a34SBen Goz bool allocated; 878ed6e6a34SBen Goz struct kfd_mem_obj *ib_buffer_obj; 879851a645eSFelix Kuehling unsigned int ib_size_bytes; 880f6e27ff1SFelix Kuehling 881f6e27ff1SFelix Kuehling const struct packet_manager_funcs *pmf; 882ed6e6a34SBen Goz }; 883ed6e6a34SBen Goz 884f6e27ff1SFelix Kuehling struct packet_manager_funcs { 885f6e27ff1SFelix Kuehling /* Support ASIC-specific packet formats for PM4 packets */ 886f6e27ff1SFelix Kuehling int (*map_process)(struct packet_manager *pm, uint32_t *buffer, 887f6e27ff1SFelix Kuehling struct qcm_process_device *qpd); 888f6e27ff1SFelix Kuehling int (*runlist)(struct packet_manager *pm, uint32_t *buffer, 889f6e27ff1SFelix Kuehling uint64_t ib, size_t ib_size_in_dwords, bool chain); 890f6e27ff1SFelix Kuehling int (*set_resources)(struct packet_manager *pm, uint32_t *buffer, 891f6e27ff1SFelix Kuehling struct scheduling_resources *res); 892f6e27ff1SFelix Kuehling int (*map_queues)(struct packet_manager *pm, uint32_t *buffer, 893f6e27ff1SFelix Kuehling struct queue *q, bool is_static); 894f6e27ff1SFelix Kuehling int (*unmap_queues)(struct packet_manager *pm, uint32_t *buffer, 895f6e27ff1SFelix Kuehling enum kfd_queue_type type, 896f6e27ff1SFelix Kuehling enum kfd_unmap_queues_filter mode, 897f6e27ff1SFelix Kuehling uint32_t filter_param, bool reset, 898f6e27ff1SFelix Kuehling unsigned int sdma_engine); 899f6e27ff1SFelix Kuehling int (*query_status)(struct packet_manager *pm, uint32_t *buffer, 900f6e27ff1SFelix Kuehling uint64_t fence_address, uint32_t fence_value); 901f6e27ff1SFelix Kuehling int (*release_mem)(uint64_t gpu_addr, uint32_t *buffer); 902f6e27ff1SFelix Kuehling 903f6e27ff1SFelix Kuehling /* Packet sizes */ 904f6e27ff1SFelix Kuehling int map_process_size; 905f6e27ff1SFelix Kuehling int runlist_size; 906f6e27ff1SFelix Kuehling int set_resources_size; 907f6e27ff1SFelix Kuehling int map_queues_size; 908f6e27ff1SFelix Kuehling int unmap_queues_size; 909f6e27ff1SFelix Kuehling int query_status_size; 910f6e27ff1SFelix Kuehling int release_mem_size; 911f6e27ff1SFelix Kuehling }; 912f6e27ff1SFelix Kuehling 913f6e27ff1SFelix Kuehling extern const struct packet_manager_funcs kfd_vi_pm_funcs; 914454150b1SFelix Kuehling extern const struct packet_manager_funcs kfd_v9_pm_funcs; 915f6e27ff1SFelix Kuehling 91664c7f8cfSBen Goz int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm); 91764c7f8cfSBen Goz void pm_uninit(struct packet_manager *pm); 91864c7f8cfSBen Goz int pm_send_set_resources(struct packet_manager *pm, 91964c7f8cfSBen Goz struct scheduling_resources *res); 92064c7f8cfSBen Goz int pm_send_runlist(struct packet_manager *pm, struct list_head *dqm_queues); 92164c7f8cfSBen Goz int pm_send_query_status(struct packet_manager *pm, uint64_t fence_address, 92264c7f8cfSBen Goz uint32_t fence_value); 92364c7f8cfSBen Goz 92464c7f8cfSBen Goz int pm_send_unmap_queue(struct packet_manager *pm, enum kfd_queue_type type, 9257da2bcf8SYong Zhao enum kfd_unmap_queues_filter mode, 92664c7f8cfSBen Goz uint32_t filter_param, bool reset, 92764c7f8cfSBen Goz unsigned int sdma_engine); 92864c7f8cfSBen Goz 929241f24f8SBen Goz void pm_release_ib(struct packet_manager *pm); 930241f24f8SBen Goz 931454150b1SFelix Kuehling /* Following PM funcs can be shared among VI and AI */ 932454150b1SFelix Kuehling unsigned int pm_build_pm4_header(unsigned int opcode, size_t packet_size); 933454150b1SFelix Kuehling int pm_set_resources_vi(struct packet_manager *pm, uint32_t *buffer, 934454150b1SFelix Kuehling struct scheduling_resources *res); 935454150b1SFelix Kuehling 93619f6d2a6SOded Gabbay uint64_t kfd_get_number_elems(struct kfd_dev *kfd); 93719f6d2a6SOded Gabbay 938f3a39818SAndrew Lewycky /* Events */ 939f3a39818SAndrew Lewycky extern const struct kfd_event_interrupt_class event_interrupt_class_cik; 940ca750681SFelix Kuehling extern const struct kfd_event_interrupt_class event_interrupt_class_v9; 941ca750681SFelix Kuehling 942930c5ff4SAlexey Skidanov extern const struct kfd_device_global_init_class device_global_init_class_cik; 943f3a39818SAndrew Lewycky 944f3a39818SAndrew Lewycky void kfd_event_init_process(struct kfd_process *p); 945f3a39818SAndrew Lewycky void kfd_event_free_process(struct kfd_process *p); 946f3a39818SAndrew Lewycky int kfd_event_mmap(struct kfd_process *process, struct vm_area_struct *vma); 947f3a39818SAndrew Lewycky int kfd_wait_on_events(struct kfd_process *p, 94859d3e8beSAlexey Skidanov uint32_t num_events, void __user *data, 949f3a39818SAndrew Lewycky bool all, uint32_t user_timeout_ms, 950fdf0c833SFelix Kuehling uint32_t *wait_result); 951f3a39818SAndrew Lewycky void kfd_signal_event_interrupt(unsigned int pasid, uint32_t partial_id, 952f3a39818SAndrew Lewycky uint32_t valid_id_bits); 95359d3e8beSAlexey Skidanov void kfd_signal_iommu_event(struct kfd_dev *dev, 95459d3e8beSAlexey Skidanov unsigned int pasid, unsigned long address, 95559d3e8beSAlexey Skidanov bool is_write_requested, bool is_execute_requested); 956930c5ff4SAlexey Skidanov void kfd_signal_hw_exception_event(unsigned int pasid); 957f3a39818SAndrew Lewycky int kfd_set_event(struct kfd_process *p, uint32_t event_id); 958f3a39818SAndrew Lewycky int kfd_reset_event(struct kfd_process *p, uint32_t event_id); 9590fc8011fSFelix Kuehling int kfd_event_page_set(struct kfd_process *p, void *kernel_address, 9600fc8011fSFelix Kuehling uint64_t size); 961f3a39818SAndrew Lewycky int kfd_event_create(struct file *devkfd, struct kfd_process *p, 962f3a39818SAndrew Lewycky uint32_t event_type, bool auto_reset, uint32_t node_id, 963f3a39818SAndrew Lewycky uint32_t *event_id, uint32_t *event_trigger_data, 964f3a39818SAndrew Lewycky uint64_t *event_page_offset, uint32_t *event_slot_index); 965f3a39818SAndrew Lewycky int kfd_event_destroy(struct kfd_process *p, uint32_t event_id); 966f3a39818SAndrew Lewycky 9672640c3faSshaoyunl void kfd_signal_vm_fault_event(struct kfd_dev *dev, unsigned int pasid, 9682640c3faSshaoyunl struct kfd_vm_fault_info *info); 9692640c3faSshaoyunl 970e42051d2SShaoyun Liu void kfd_signal_reset_event(struct kfd_dev *dev); 971e42051d2SShaoyun Liu 972403575c4SFelix Kuehling void kfd_flush_tlb(struct kfd_process_device *pdd); 973403575c4SFelix Kuehling 974c3447e81SBen Goz int dbgdev_wave_reset_wavefronts(struct kfd_dev *dev, struct kfd_process *p); 975c3447e81SBen Goz 976e42051d2SShaoyun Liu bool kfd_is_locked(void); 977e42051d2SShaoyun Liu 978851a645eSFelix Kuehling /* Debugfs */ 979851a645eSFelix Kuehling #if defined(CONFIG_DEBUG_FS) 980851a645eSFelix Kuehling 981851a645eSFelix Kuehling void kfd_debugfs_init(void); 982851a645eSFelix Kuehling void kfd_debugfs_fini(void); 983851a645eSFelix Kuehling int kfd_debugfs_mqds_by_process(struct seq_file *m, void *data); 984851a645eSFelix Kuehling int pqm_debugfs_mqds(struct seq_file *m, void *data); 985851a645eSFelix Kuehling int kfd_debugfs_hqds_by_device(struct seq_file *m, void *data); 986851a645eSFelix Kuehling int dqm_debugfs_hqds(struct seq_file *m, void *data); 987851a645eSFelix Kuehling int kfd_debugfs_rls_by_device(struct seq_file *m, void *data); 988851a645eSFelix Kuehling int pm_debugfs_runlist(struct seq_file *m, void *data); 989851a645eSFelix Kuehling 990a29ec470SShaoyun Liu int kfd_debugfs_hang_hws(struct kfd_dev *dev); 991a29ec470SShaoyun Liu int pm_debugfs_hang_hws(struct packet_manager *pm); 992a29ec470SShaoyun Liu int dqm_debugfs_execute_queues(struct device_queue_manager *dqm); 993a29ec470SShaoyun Liu 994851a645eSFelix Kuehling #else 995851a645eSFelix Kuehling 996851a645eSFelix Kuehling static inline void kfd_debugfs_init(void) {} 997851a645eSFelix Kuehling static inline void kfd_debugfs_fini(void) {} 998851a645eSFelix Kuehling 999851a645eSFelix Kuehling #endif 1000851a645eSFelix Kuehling 10014a488a7aSOded Gabbay #endif 1002