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> 38de9f26bbSKent Russell #include <linux/sysfs.h> 396b855f7bSHarish Kasiviswanathan #include <linux/device_cgroup.h> 401cd4d9eeSStephen Rothwell #include <drm/drm_file.h> 411cd4d9eeSStephen Rothwell #include <drm/drm_drv.h> 421cd4d9eeSStephen Rothwell #include <drm/drm_device.h> 434a488a7aSOded Gabbay #include <kgd_kfd_interface.h> 446d220a7eSAmber Lin #include <linux/swap.h> 454a488a7aSOded Gabbay 46e596b903SYong Zhao #include "amd_shared.h" 47e596b903SYong Zhao 48af47b390SLaura Abbott #define KFD_MAX_RING_ENTRY_SIZE 8 49af47b390SLaura Abbott 505b5c4e40SEvgeny Pinchuk #define KFD_SYSFS_FILE_MODE 0444 515b5c4e40SEvgeny Pinchuk 52df03ef93SHarish Kasiviswanathan /* GPU ID hash width in bits */ 53df03ef93SHarish Kasiviswanathan #define KFD_GPU_ID_HASH_WIDTH 16 54df03ef93SHarish Kasiviswanathan 55df03ef93SHarish Kasiviswanathan /* Use upper bits of mmap offset to store KFD driver specific information. 56df03ef93SHarish Kasiviswanathan * BITS[63:62] - Encode MMAP type 57df03ef93SHarish Kasiviswanathan * BITS[61:46] - Encode gpu_id. To identify to which GPU the offset belongs to 58df03ef93SHarish Kasiviswanathan * BITS[45:0] - MMAP offset value 59df03ef93SHarish Kasiviswanathan * 60df03ef93SHarish Kasiviswanathan * NOTE: struct vm_area_struct.vm_pgoff uses offset in pages. Hence, these 61df03ef93SHarish Kasiviswanathan * defines are w.r.t to PAGE_SIZE 62df03ef93SHarish Kasiviswanathan */ 6329453755SYong Zhao #define KFD_MMAP_TYPE_SHIFT 62 64df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_MASK (0x3ULL << KFD_MMAP_TYPE_SHIFT) 65df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_DOORBELL (0x3ULL << KFD_MMAP_TYPE_SHIFT) 66df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_EVENTS (0x2ULL << KFD_MMAP_TYPE_SHIFT) 67df03ef93SHarish Kasiviswanathan #define KFD_MMAP_TYPE_RESERVED_MEM (0x1ULL << KFD_MMAP_TYPE_SHIFT) 68d33ea570SOak Zeng #define KFD_MMAP_TYPE_MMIO (0x0ULL << KFD_MMAP_TYPE_SHIFT) 69df03ef93SHarish Kasiviswanathan 7029453755SYong Zhao #define KFD_MMAP_GPU_ID_SHIFT 46 71df03ef93SHarish Kasiviswanathan #define KFD_MMAP_GPU_ID_MASK (((1ULL << KFD_GPU_ID_HASH_WIDTH) - 1) \ 72df03ef93SHarish Kasiviswanathan << KFD_MMAP_GPU_ID_SHIFT) 73df03ef93SHarish Kasiviswanathan #define KFD_MMAP_GPU_ID(gpu_id) ((((uint64_t)gpu_id) << KFD_MMAP_GPU_ID_SHIFT)\ 74df03ef93SHarish Kasiviswanathan & KFD_MMAP_GPU_ID_MASK) 7529453755SYong Zhao #define KFD_MMAP_GET_GPU_ID(offset) ((offset & KFD_MMAP_GPU_ID_MASK) \ 76df03ef93SHarish Kasiviswanathan >> KFD_MMAP_GPU_ID_SHIFT) 77df03ef93SHarish Kasiviswanathan 78ed6e6a34SBen Goz /* 79ed6e6a34SBen Goz * When working with cp scheduler we should assign the HIQ manually or via 80e7016d8eSYong Zhao * the amdgpu driver to a fixed hqd slot, here are the fixed HIQ hqd slot 81ed6e6a34SBen Goz * definitions for Kaveri. In Kaveri only the first ME queues participates 82ed6e6a34SBen Goz * in the cp scheduling taking that in mind we set the HIQ slot in the 83ed6e6a34SBen Goz * second ME. 84ed6e6a34SBen Goz */ 85ed6e6a34SBen Goz #define KFD_CIK_HIQ_PIPE 4 86ed6e6a34SBen Goz #define KFD_CIK_HIQ_QUEUE 0 87ed6e6a34SBen Goz 885b5c4e40SEvgeny Pinchuk /* Macro for allocating structures */ 895b5c4e40SEvgeny Pinchuk #define kfd_alloc_struct(ptr_to_struct) \ 905b5c4e40SEvgeny Pinchuk ((typeof(ptr_to_struct)) kzalloc(sizeof(*ptr_to_struct), GFP_KERNEL)) 915b5c4e40SEvgeny Pinchuk 9219f6d2a6SOded Gabbay #define KFD_MAX_NUM_OF_PROCESSES 512 93b8cbab04SOded Gabbay #define KFD_MAX_NUM_OF_QUEUES_PER_PROCESS 1024 9419f6d2a6SOded Gabbay 9519f6d2a6SOded Gabbay /* 96373d7080SFelix Kuehling * Size of the per-process TBA+TMA buffer: 2 pages 97373d7080SFelix Kuehling * 98373d7080SFelix Kuehling * The first page is the TBA used for the CWSR ISA code. The second 99373d7080SFelix Kuehling * page is used as TMA for daisy changing a user-mode trap handler. 100373d7080SFelix Kuehling */ 101373d7080SFelix Kuehling #define KFD_CWSR_TBA_TMA_SIZE (PAGE_SIZE * 2) 102373d7080SFelix Kuehling #define KFD_CWSR_TMA_OFFSET PAGE_SIZE 103373d7080SFelix Kuehling 10474523943SYong Zhao #define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE \ 10574523943SYong Zhao (KFD_MAX_NUM_OF_PROCESSES * \ 10674523943SYong Zhao KFD_MAX_NUM_OF_QUEUES_PER_PROCESS) 10774523943SYong Zhao 10874523943SYong Zhao #define KFD_KERNEL_QUEUE_SIZE 2048 10974523943SYong Zhao 11014328aa5SPhilip Cox #define KFD_UNMAP_LATENCY_MS (4000) 11114328aa5SPhilip Cox 112373d7080SFelix Kuehling /* 1131f86805aSYong Zhao * 512 = 0x200 1141f86805aSYong Zhao * The doorbell index distance between SDMA RLC (2*i) and (2*i+1) in the 1151f86805aSYong Zhao * same SDMA engine on SOC15, which has 8-byte doorbells for SDMA. 1161f86805aSYong Zhao * 512 8-byte doorbell distance (i.e. one page away) ensures that SDMA RLC 1171f86805aSYong Zhao * (2*i+1) doorbells (in terms of the lower 12 bit address) lie exactly in 1181f86805aSYong Zhao * the OFFSET and SIZE set in registers like BIF_SDMA0_DOORBELL_RANGE. 1191f86805aSYong Zhao */ 1201f86805aSYong Zhao #define KFD_QUEUE_DOORBELL_MIRROR_OFFSET 512 1211f86805aSYong Zhao 1221f86805aSYong Zhao 1231f86805aSYong Zhao /* 124b8cbab04SOded Gabbay * Kernel module parameter to specify maximum number of supported queues per 125b8cbab04SOded Gabbay * device 12619f6d2a6SOded Gabbay */ 127b8cbab04SOded Gabbay extern int max_num_of_queues_per_device; 12819f6d2a6SOded Gabbay 129ed6e6a34SBen Goz 13031c21fecSBen Goz /* Kernel module parameter to specify the scheduling policy */ 13131c21fecSBen Goz extern int sched_policy; 13231c21fecSBen Goz 133a99c6d4fSFelix Kuehling /* 134a99c6d4fSFelix Kuehling * Kernel module parameter to specify the maximum process 135a99c6d4fSFelix Kuehling * number per HW scheduler 136a99c6d4fSFelix Kuehling */ 137a99c6d4fSFelix Kuehling extern int hws_max_conc_proc; 138a99c6d4fSFelix Kuehling 139373d7080SFelix Kuehling extern int cwsr_enable; 140373d7080SFelix Kuehling 14181663016SOded Gabbay /* 14281663016SOded Gabbay * Kernel module parameter to specify whether to send sigterm to HSA process on 14381663016SOded Gabbay * unhandled exception 14481663016SOded Gabbay */ 14581663016SOded Gabbay extern int send_sigterm; 14681663016SOded Gabbay 147ebcfd1e2SFelix Kuehling /* 148374200b1SFelix Kuehling * This kernel module is used to simulate large bar machine on non-large bar 149374200b1SFelix Kuehling * enabled machines. 150374200b1SFelix Kuehling */ 151374200b1SFelix Kuehling extern int debug_largebar; 152374200b1SFelix Kuehling 153374200b1SFelix Kuehling /* 154ebcfd1e2SFelix Kuehling * Ignore CRAT table during KFD initialization, can be used to work around 155ebcfd1e2SFelix Kuehling * broken CRAT tables on some AMD systems 156ebcfd1e2SFelix Kuehling */ 157ebcfd1e2SFelix Kuehling extern int ignore_crat; 158ebcfd1e2SFelix Kuehling 159bed4f110SFelix Kuehling /* 160bed4f110SFelix Kuehling * Set sh_mem_config.retry_disable on Vega10 161bed4f110SFelix Kuehling */ 16275ee6487SFelix Kuehling extern int amdgpu_noretry; 163bed4f110SFelix Kuehling 1640e9a860cSYong Zhao /* 1650e9a860cSYong Zhao * Halt if HWS hang is detected 1660e9a860cSYong Zhao */ 1670e9a860cSYong Zhao extern int halt_if_hws_hang; 1680e9a860cSYong Zhao 16929e76462SOak Zeng /* 17029e76462SOak Zeng * Whether MEC FW support GWS barriers 17129e76462SOak Zeng */ 17229e76462SOak Zeng extern bool hws_gws_support; 17329e76462SOak Zeng 17414328aa5SPhilip Cox /* 17514328aa5SPhilip Cox * Queue preemption timeout in ms 17614328aa5SPhilip Cox */ 17714328aa5SPhilip Cox extern int queue_preemption_timeout_ms; 17814328aa5SPhilip Cox 179ed6e6a34SBen Goz enum cache_policy { 180ed6e6a34SBen Goz cache_policy_coherent, 181ed6e6a34SBen Goz cache_policy_noncoherent 182ed6e6a34SBen Goz }; 183ed6e6a34SBen Goz 184ef568db7SFelix Kuehling #define KFD_IS_SOC15(chip) ((chip) >= CHIP_VEGA10) 185ef568db7SFelix Kuehling 186f3a39818SAndrew Lewycky struct kfd_event_interrupt_class { 187f3a39818SAndrew Lewycky bool (*interrupt_isr)(struct kfd_dev *dev, 18858e69886SLan Xiao const uint32_t *ih_ring_entry, uint32_t *patched_ihre, 18958e69886SLan Xiao bool *patched_flag); 190f3a39818SAndrew Lewycky void (*interrupt_wq)(struct kfd_dev *dev, 191f3a39818SAndrew Lewycky const uint32_t *ih_ring_entry); 192f3a39818SAndrew Lewycky }; 193f3a39818SAndrew Lewycky 1944a488a7aSOded Gabbay struct kfd_device_info { 195e596b903SYong Zhao enum amd_asic_type asic_family; 196c181159aSYong Zhao const char *asic_name; 197f3a39818SAndrew Lewycky const struct kfd_event_interrupt_class *event_interrupt_class; 1984a488a7aSOded Gabbay unsigned int max_pasid_bits; 199992839adSYair Shachar unsigned int max_no_of_hqd; 200ada2b29cSFelix Kuehling unsigned int doorbell_size; 2014a488a7aSOded Gabbay size_t ih_ring_entry_size; 202f7c826adSAlexey Skidanov uint8_t num_of_watch_points; 20319f6d2a6SOded Gabbay uint16_t mqd_size_aligned; 204373d7080SFelix Kuehling bool supports_cwsr; 20564d1c3a4SFelix Kuehling bool needs_iommu_device; 2063ee2d00cSFelix Kuehling bool needs_pci_atomics; 20798bb9222SYong Zhao unsigned int num_sdma_engines; 2081b4670f6SOak Zeng unsigned int num_xgmi_sdma_engines; 209d5094189SShaoyun Liu unsigned int num_sdma_queues_per_engine; 2104a488a7aSOded Gabbay }; 2114a488a7aSOded Gabbay 21236b5c08fSOded Gabbay struct kfd_mem_obj { 21336b5c08fSOded Gabbay uint32_t range_start; 21436b5c08fSOded Gabbay uint32_t range_end; 21536b5c08fSOded Gabbay uint64_t gpu_addr; 21636b5c08fSOded Gabbay uint32_t *cpu_ptr; 217b91d43ddSFelix Kuehling void *gtt_mem; 21836b5c08fSOded Gabbay }; 21936b5c08fSOded Gabbay 22044008d7aSYong Zhao struct kfd_vmid_info { 22144008d7aSYong Zhao uint32_t first_vmid_kfd; 22244008d7aSYong Zhao uint32_t last_vmid_kfd; 22344008d7aSYong Zhao uint32_t vmid_num_kfd; 22444008d7aSYong Zhao }; 22544008d7aSYong Zhao 2264a488a7aSOded Gabbay struct kfd_dev { 2274a488a7aSOded Gabbay struct kgd_dev *kgd; 2284a488a7aSOded Gabbay 2294a488a7aSOded Gabbay const struct kfd_device_info *device_info; 2304a488a7aSOded Gabbay struct pci_dev *pdev; 2313a0c3423SHarish Kasiviswanathan struct drm_device *ddev; 2324a488a7aSOded Gabbay 2334a488a7aSOded Gabbay unsigned int id; /* topology stub index */ 2344a488a7aSOded Gabbay 23519f6d2a6SOded Gabbay phys_addr_t doorbell_base; /* Start of actual doorbells used by 23619f6d2a6SOded Gabbay * KFD. It is aligned for mapping 23719f6d2a6SOded Gabbay * into user mode 23819f6d2a6SOded Gabbay */ 239339903faSYong Zhao size_t doorbell_base_dw_offset; /* Offset from the start of the PCI 240339903faSYong Zhao * doorbell BAR to the first KFD 241339903faSYong Zhao * doorbell in dwords. GFX reserves 242339903faSYong Zhao * the segment before this offset. 24319f6d2a6SOded Gabbay */ 24419f6d2a6SOded Gabbay u32 __iomem *doorbell_kernel_ptr; /* This is a pointer for a doorbells 24519f6d2a6SOded Gabbay * page used by kernel queue 24619f6d2a6SOded Gabbay */ 24719f6d2a6SOded Gabbay 2484a488a7aSOded Gabbay struct kgd2kfd_shared_resources shared_resources; 24944008d7aSYong Zhao struct kfd_vmid_info vm_info; 2504a488a7aSOded Gabbay 251cea405b1SXihan Zhang const struct kfd2kgd_calls *kfd2kgd; 252cea405b1SXihan Zhang struct mutex doorbell_mutex; 253f761d8bdSJoe Perches DECLARE_BITMAP(doorbell_available_index, 254f761d8bdSJoe Perches KFD_MAX_NUM_OF_QUEUES_PER_PROCESS); 255cea405b1SXihan Zhang 25636b5c08fSOded Gabbay void *gtt_mem; 25736b5c08fSOded Gabbay uint64_t gtt_start_gpu_addr; 25836b5c08fSOded Gabbay void *gtt_start_cpu_ptr; 25936b5c08fSOded Gabbay void *gtt_sa_bitmap; 26036b5c08fSOded Gabbay struct mutex gtt_sa_lock; 26136b5c08fSOded Gabbay unsigned int gtt_sa_chunk_size; 26236b5c08fSOded Gabbay unsigned int gtt_sa_num_of_chunks; 26336b5c08fSOded Gabbay 2642249d558SAndrew Lewycky /* Interrupts */ 26504ad47bdSAndres Rodriguez struct kfifo ih_fifo; 26648e876a2SAndres Rodriguez struct workqueue_struct *ih_wq; 2672249d558SAndrew Lewycky struct work_struct interrupt_work; 2682249d558SAndrew Lewycky spinlock_t interrupt_lock; 2692249d558SAndrew Lewycky 270ed6e6a34SBen Goz /* QCM Device instance */ 271ed6e6a34SBen Goz struct device_queue_manager *dqm; 2724a488a7aSOded Gabbay 273ed6e6a34SBen Goz bool init_complete; 2742249d558SAndrew Lewycky /* 2752249d558SAndrew Lewycky * Interrupts of interest to KFD are copied 2762249d558SAndrew Lewycky * from the HW ring into a SW ring. 2772249d558SAndrew Lewycky */ 2782249d558SAndrew Lewycky bool interrupts_active; 279fbeb661bSYair Shachar 280fbeb661bSYair Shachar /* Debug manager */ 281fbeb661bSYair Shachar struct kfd_dbgmgr *dbgmgr; 282373d7080SFelix Kuehling 2835ade6c9cSFelix Kuehling /* Firmware versions */ 2845ade6c9cSFelix Kuehling uint16_t mec_fw_version; 2855ade6c9cSFelix Kuehling uint16_t sdma_fw_version; 2865ade6c9cSFelix Kuehling 287a99c6d4fSFelix Kuehling /* Maximum process number mapped to HW scheduler */ 288a99c6d4fSFelix Kuehling unsigned int max_proc_per_quantum; 289a99c6d4fSFelix Kuehling 290373d7080SFelix Kuehling /* CWSR */ 291373d7080SFelix Kuehling bool cwsr_enabled; 292373d7080SFelix Kuehling const void *cwsr_isa; 293373d7080SFelix Kuehling unsigned int cwsr_isa_size; 2940c1690e3SShaoyun Liu 2950c1690e3SShaoyun Liu /* xGMI */ 2960c1690e3SShaoyun Liu uint64_t hive_id; 297d35f00d8SEric Huang 298d35f00d8SEric Huang bool pci_atomic_requested; 2999b54d201SEric Huang 3009b54d201SEric Huang /* SRAM ECC flag */ 3019b54d201SEric Huang atomic_t sram_ecc_flag; 302f756e631SHarish Kasiviswanathan 303f756e631SHarish Kasiviswanathan /* Compute Profile ref. count */ 304f756e631SHarish Kasiviswanathan atomic_t compute_profile; 305e09d4fc8SOak Zeng 306e09d4fc8SOak Zeng /* Global GWS resource shared b/t processes*/ 307e09d4fc8SOak Zeng void *gws; 3084a488a7aSOded Gabbay }; 3094a488a7aSOded Gabbay 31019f6d2a6SOded Gabbay enum kfd_mempool { 31119f6d2a6SOded Gabbay KFD_MEMPOOL_SYSTEM_CACHEABLE = 1, 31219f6d2a6SOded Gabbay KFD_MEMPOOL_SYSTEM_WRITECOMBINE = 2, 31319f6d2a6SOded Gabbay KFD_MEMPOOL_FRAMEBUFFER = 3, 31419f6d2a6SOded Gabbay }; 31519f6d2a6SOded Gabbay 3164a488a7aSOded Gabbay /* Character device interface */ 3174a488a7aSOded Gabbay int kfd_chardev_init(void); 3184a488a7aSOded Gabbay void kfd_chardev_exit(void); 3194a488a7aSOded Gabbay struct device *kfd_chardev(void); 3204a488a7aSOded Gabbay 321241f24f8SBen Goz /** 3227da2bcf8SYong Zhao * enum kfd_unmap_queues_filter 323241f24f8SBen Goz * 3247da2bcf8SYong Zhao * @KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE: Preempts single queue. 325241f24f8SBen Goz * 3267da2bcf8SYong Zhao * @KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES: Preempts all queues in the 327241f24f8SBen Goz * running queues list. 328241f24f8SBen Goz * 3297da2bcf8SYong Zhao * @KFD_UNMAP_QUEUES_FILTER_BY_PASID: Preempts queues that belongs to 330241f24f8SBen Goz * specific process. 331241f24f8SBen Goz * 332241f24f8SBen Goz */ 3337da2bcf8SYong Zhao enum kfd_unmap_queues_filter { 3347da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE, 3357da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES, 3367da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 3377da2bcf8SYong Zhao KFD_UNMAP_QUEUES_FILTER_BY_PASID 338241f24f8SBen Goz }; 33919f6d2a6SOded Gabbay 340ed8aab45SBen Goz /** 341ed8aab45SBen Goz * enum kfd_queue_type 342ed8aab45SBen Goz * 343ed8aab45SBen Goz * @KFD_QUEUE_TYPE_COMPUTE: Regular user mode queue type. 344ed8aab45SBen Goz * 345ed8aab45SBen Goz * @KFD_QUEUE_TYPE_SDMA: Sdma user mode queue type. 346ed8aab45SBen Goz * 347ed8aab45SBen Goz * @KFD_QUEUE_TYPE_HIQ: HIQ queue type. 348ed8aab45SBen Goz * 349ed8aab45SBen Goz * @KFD_QUEUE_TYPE_DIQ: DIQ queue type. 350ed8aab45SBen Goz */ 351ed8aab45SBen Goz enum kfd_queue_type { 352ed8aab45SBen Goz KFD_QUEUE_TYPE_COMPUTE, 353ed8aab45SBen Goz KFD_QUEUE_TYPE_SDMA, 354ed8aab45SBen Goz KFD_QUEUE_TYPE_HIQ, 3551b4670f6SOak Zeng KFD_QUEUE_TYPE_DIQ, 3561b4670f6SOak Zeng KFD_QUEUE_TYPE_SDMA_XGMI 357ed8aab45SBen Goz }; 358ed8aab45SBen Goz 3596e99df57SBen Goz enum kfd_queue_format { 3606e99df57SBen Goz KFD_QUEUE_FORMAT_PM4, 3616e99df57SBen Goz KFD_QUEUE_FORMAT_AQL 3626e99df57SBen Goz }; 3636e99df57SBen Goz 3640ccbc7cdSOak Zeng enum KFD_QUEUE_PRIORITY { 3650ccbc7cdSOak Zeng KFD_QUEUE_PRIORITY_MINIMUM = 0, 3660ccbc7cdSOak Zeng KFD_QUEUE_PRIORITY_MAXIMUM = 15 3670ccbc7cdSOak Zeng }; 3680ccbc7cdSOak Zeng 369ed8aab45SBen Goz /** 370ed8aab45SBen Goz * struct queue_properties 371ed8aab45SBen Goz * 372ed8aab45SBen Goz * @type: The queue type. 373ed8aab45SBen Goz * 374ed8aab45SBen Goz * @queue_id: Queue identifier. 375ed8aab45SBen Goz * 376ed8aab45SBen Goz * @queue_address: Queue ring buffer address. 377ed8aab45SBen Goz * 378ed8aab45SBen Goz * @queue_size: Queue ring buffer size. 379ed8aab45SBen Goz * 380ed8aab45SBen Goz * @priority: Defines the queue priority relative to other queues in the 381ed8aab45SBen Goz * process. 382ed8aab45SBen Goz * This is just an indication and HW scheduling may override the priority as 383ed8aab45SBen Goz * necessary while keeping the relative prioritization. 384ed8aab45SBen Goz * the priority granularity is from 0 to f which f is the highest priority. 385ed8aab45SBen Goz * currently all queues are initialized with the highest priority. 386ed8aab45SBen Goz * 387ed8aab45SBen Goz * @queue_percent: This field is partially implemented and currently a zero in 388ed8aab45SBen Goz * this field defines that the queue is non active. 389ed8aab45SBen Goz * 390ed8aab45SBen Goz * @read_ptr: User space address which points to the number of dwords the 391ed8aab45SBen Goz * cp read from the ring buffer. This field updates automatically by the H/W. 392ed8aab45SBen Goz * 393ed8aab45SBen Goz * @write_ptr: Defines the number of dwords written to the ring buffer. 394ed8aab45SBen Goz * 395ed8aab45SBen Goz * @doorbell_ptr: This field aim is to notify the H/W of new packet written to 3968eabaf54SKent Russell * the queue ring buffer. This field should be similar to write_ptr and the 3978eabaf54SKent Russell * user should update this field after he updated the write_ptr. 398ed8aab45SBen Goz * 399ed8aab45SBen Goz * @doorbell_off: The doorbell offset in the doorbell pci-bar. 400ed8aab45SBen Goz * 4018eabaf54SKent Russell * @is_interop: Defines if this is a interop queue. Interop queue means that 4028eabaf54SKent Russell * the queue can access both graphics and compute resources. 403ed8aab45SBen Goz * 40426103436SFelix Kuehling * @is_evicted: Defines if the queue is evicted. Only active queues 40526103436SFelix Kuehling * are evicted, rendering them inactive. 40626103436SFelix Kuehling * 40726103436SFelix Kuehling * @is_active: Defines if the queue is active or not. @is_active and 40826103436SFelix Kuehling * @is_evicted are protected by the DQM lock. 409ed8aab45SBen Goz * 410ed8aab45SBen Goz * @vmid: If the scheduling mode is no cp scheduling the field defines the vmid 411ed8aab45SBen Goz * of the queue. 412ed8aab45SBen Goz * 413ed8aab45SBen Goz * This structure represents the queue properties for each queue no matter if 414ed8aab45SBen Goz * it's user mode or kernel mode queue. 415ed8aab45SBen Goz * 416ed8aab45SBen Goz */ 417ed8aab45SBen Goz struct queue_properties { 418ed8aab45SBen Goz enum kfd_queue_type type; 4196e99df57SBen Goz enum kfd_queue_format format; 420ed8aab45SBen Goz unsigned int queue_id; 421ed8aab45SBen Goz uint64_t queue_address; 422ed8aab45SBen Goz uint64_t queue_size; 423ed8aab45SBen Goz uint32_t priority; 424ed8aab45SBen Goz uint32_t queue_percent; 425ed8aab45SBen Goz uint32_t *read_ptr; 426ed8aab45SBen Goz uint32_t *write_ptr; 427ada2b29cSFelix Kuehling void __iomem *doorbell_ptr; 428ed8aab45SBen Goz uint32_t doorbell_off; 429ed8aab45SBen Goz bool is_interop; 43026103436SFelix Kuehling bool is_evicted; 431ed8aab45SBen Goz bool is_active; 432ed8aab45SBen Goz /* Not relevant for user mode queues in cp scheduling */ 433ed8aab45SBen Goz unsigned int vmid; 43477669eb8SBen Goz /* Relevant only for sdma queues*/ 43577669eb8SBen Goz uint32_t sdma_engine_id; 43677669eb8SBen Goz uint32_t sdma_queue_id; 43777669eb8SBen Goz uint32_t sdma_vm_addr; 438ff3d04a1SBen Goz /* Relevant only for VI */ 439ff3d04a1SBen Goz uint64_t eop_ring_buffer_address; 440ff3d04a1SBen Goz uint32_t eop_ring_buffer_size; 441ff3d04a1SBen Goz uint64_t ctx_save_restore_area_address; 442ff3d04a1SBen Goz uint32_t ctx_save_restore_area_size; 443373d7080SFelix Kuehling uint32_t ctl_stack_size; 444373d7080SFelix Kuehling uint64_t tba_addr; 445373d7080SFelix Kuehling uint64_t tma_addr; 44639e7f331SFelix Kuehling /* Relevant for CU */ 44739e7f331SFelix Kuehling uint32_t cu_mask_count; /* Must be a multiple of 32 */ 44839e7f331SFelix Kuehling uint32_t *cu_mask; 449ed8aab45SBen Goz }; 450ed8aab45SBen Goz 451bb2d2128SFelix Kuehling #define QUEUE_IS_ACTIVE(q) ((q).queue_size > 0 && \ 452bb2d2128SFelix Kuehling (q).queue_address != 0 && \ 453bb2d2128SFelix Kuehling (q).queue_percent > 0 && \ 454bb2d2128SFelix Kuehling !(q).is_evicted) 455bb2d2128SFelix Kuehling 456ed8aab45SBen Goz /** 457ed8aab45SBen Goz * struct queue 458ed8aab45SBen Goz * 459ed8aab45SBen Goz * @list: Queue linked list. 460ed8aab45SBen Goz * 461ed8aab45SBen Goz * @mqd: The queue MQD. 462ed8aab45SBen Goz * 463ed8aab45SBen Goz * @mqd_mem_obj: The MQD local gpu memory object. 464ed8aab45SBen Goz * 465ed8aab45SBen Goz * @gart_mqd_addr: The MQD gart mc address. 466ed8aab45SBen Goz * 467ed8aab45SBen Goz * @properties: The queue properties. 468ed8aab45SBen Goz * 469ed8aab45SBen Goz * @mec: Used only in no cp scheduling mode and identifies to micro engine id 470ed8aab45SBen Goz * that the queue should be execute on. 471ed8aab45SBen Goz * 4728eabaf54SKent Russell * @pipe: Used only in no cp scheduling mode and identifies the queue's pipe 4738eabaf54SKent Russell * id. 474ed8aab45SBen Goz * 475ed8aab45SBen Goz * @queue: Used only in no cp scheduliong mode and identifies the queue's slot. 476ed8aab45SBen Goz * 477ed8aab45SBen Goz * @process: The kfd process that created this queue. 478ed8aab45SBen Goz * 479ed8aab45SBen Goz * @device: The kfd device that created this queue. 480ed8aab45SBen Goz * 481eb82da1dSOak Zeng * @gws: Pointing to gws kgd_mem if this is a gws control queue; NULL 482eb82da1dSOak Zeng * otherwise. 483eb82da1dSOak Zeng * 484ed8aab45SBen Goz * This structure represents user mode compute queues. 485ed8aab45SBen Goz * It contains all the necessary data to handle such queues. 486ed8aab45SBen Goz * 487ed8aab45SBen Goz */ 488ed8aab45SBen Goz 489ed8aab45SBen Goz struct queue { 490ed8aab45SBen Goz struct list_head list; 491ed8aab45SBen Goz void *mqd; 492ed8aab45SBen Goz struct kfd_mem_obj *mqd_mem_obj; 493ed8aab45SBen Goz uint64_t gart_mqd_addr; 494ed8aab45SBen Goz struct queue_properties properties; 495ed8aab45SBen Goz 496ed8aab45SBen Goz uint32_t mec; 497ed8aab45SBen Goz uint32_t pipe; 498ed8aab45SBen Goz uint32_t queue; 499ed8aab45SBen Goz 50077669eb8SBen Goz unsigned int sdma_id; 501ef568db7SFelix Kuehling unsigned int doorbell_id; 50277669eb8SBen Goz 503ed8aab45SBen Goz struct kfd_process *process; 504ed8aab45SBen Goz struct kfd_dev *device; 505eb82da1dSOak Zeng void *gws; 5066d220a7eSAmber Lin 5076d220a7eSAmber Lin /* procfs */ 5086d220a7eSAmber Lin struct kobject kobj; 509ed8aab45SBen Goz }; 510ed8aab45SBen Goz 5116e99df57SBen Goz /* 5126e99df57SBen Goz * Please read the kfd_mqd_manager.h description. 5136e99df57SBen Goz */ 5146e99df57SBen Goz enum KFD_MQD_TYPE { 515d7c0b047SYong Zhao KFD_MQD_TYPE_HIQ = 0, /* for hiq */ 51685d258f9SBen Goz KFD_MQD_TYPE_CP, /* for cp queues and diq */ 51785d258f9SBen Goz KFD_MQD_TYPE_SDMA, /* for sdma queues */ 51859f650a0SOak Zeng KFD_MQD_TYPE_DIQ, /* for diq */ 5196e99df57SBen Goz KFD_MQD_TYPE_MAX 5206e99df57SBen Goz }; 5216e99df57SBen Goz 5220ccbc7cdSOak Zeng enum KFD_PIPE_PRIORITY { 5230ccbc7cdSOak Zeng KFD_PIPE_PRIORITY_CS_LOW = 0, 5240ccbc7cdSOak Zeng KFD_PIPE_PRIORITY_CS_MEDIUM, 5250ccbc7cdSOak Zeng KFD_PIPE_PRIORITY_CS_HIGH 5260ccbc7cdSOak Zeng }; 5270ccbc7cdSOak Zeng 528241f24f8SBen Goz struct scheduling_resources { 529241f24f8SBen Goz unsigned int vmid_mask; 530241f24f8SBen Goz enum kfd_queue_type type; 531241f24f8SBen Goz uint64_t queue_mask; 532241f24f8SBen Goz uint64_t gws_mask; 533241f24f8SBen Goz uint32_t oac_mask; 534241f24f8SBen Goz uint32_t gds_heap_base; 535241f24f8SBen Goz uint32_t gds_heap_size; 536241f24f8SBen Goz }; 537241f24f8SBen Goz 538241f24f8SBen Goz struct process_queue_manager { 539241f24f8SBen Goz /* data */ 540241f24f8SBen Goz struct kfd_process *process; 541241f24f8SBen Goz struct list_head queues; 542241f24f8SBen Goz unsigned long *queue_slot_bitmap; 543241f24f8SBen Goz }; 544241f24f8SBen Goz 545241f24f8SBen Goz struct qcm_process_device { 546241f24f8SBen Goz /* The Device Queue Manager that owns this data */ 547241f24f8SBen Goz struct device_queue_manager *dqm; 548241f24f8SBen Goz struct process_queue_manager *pqm; 549241f24f8SBen Goz /* Queues list */ 550241f24f8SBen Goz struct list_head queues_list; 551241f24f8SBen Goz struct list_head priv_queue_list; 552241f24f8SBen Goz 553241f24f8SBen Goz unsigned int queue_count; 554241f24f8SBen Goz unsigned int vmid; 555241f24f8SBen Goz bool is_debug; 55626103436SFelix Kuehling unsigned int evicted; /* eviction counter, 0=active */ 5579fd3f1bfSFelix Kuehling 5589fd3f1bfSFelix Kuehling /* This flag tells if we should reset all wavefronts on 5599fd3f1bfSFelix Kuehling * process termination 5609fd3f1bfSFelix Kuehling */ 5619fd3f1bfSFelix Kuehling bool reset_wavefronts; 5629fd3f1bfSFelix Kuehling 563241f24f8SBen Goz /* 564241f24f8SBen Goz * All the memory management data should be here too 565241f24f8SBen Goz */ 566241f24f8SBen Goz uint64_t gds_context_area; 567435e2f97SYong Zhao /* Contains page table flags such as AMDGPU_PTE_VALID since gfx9 */ 568e715c6d0SShaoyun Liu uint64_t page_table_base; 569241f24f8SBen Goz uint32_t sh_mem_config; 570241f24f8SBen Goz uint32_t sh_mem_bases; 571241f24f8SBen Goz uint32_t sh_mem_ape1_base; 572241f24f8SBen Goz uint32_t sh_mem_ape1_limit; 573241f24f8SBen Goz uint32_t gds_size; 574241f24f8SBen Goz uint32_t num_gws; 575241f24f8SBen Goz uint32_t num_oac; 5766a1c9510SMoses Reuben uint32_t sh_hidden_private_base; 577373d7080SFelix Kuehling 578373d7080SFelix Kuehling /* CWSR memory */ 579373d7080SFelix Kuehling void *cwsr_kaddr; 580d01994c2SFelix Kuehling uint64_t cwsr_base; 581373d7080SFelix Kuehling uint64_t tba_addr; 582373d7080SFelix Kuehling uint64_t tma_addr; 583d01994c2SFelix Kuehling 584d01994c2SFelix Kuehling /* IB memory */ 585d01994c2SFelix Kuehling uint64_t ib_base; 586552764b6SFelix Kuehling void *ib_kaddr; 587ef568db7SFelix Kuehling 588ef568db7SFelix Kuehling /* doorbell resources per process per device */ 589ef568db7SFelix Kuehling unsigned long *doorbell_bitmap; 590241f24f8SBen Goz }; 591241f24f8SBen Goz 59226103436SFelix Kuehling /* KFD Memory Eviction */ 59326103436SFelix Kuehling 59426103436SFelix Kuehling /* Approx. wait time before attempting to restore evicted BOs */ 59526103436SFelix Kuehling #define PROCESS_RESTORE_TIME_MS 100 59626103436SFelix Kuehling /* Approx. back off time if restore fails due to lack of memory */ 59726103436SFelix Kuehling #define PROCESS_BACK_OFF_TIME_MS 100 59826103436SFelix Kuehling /* Approx. time before evicting the process again */ 59926103436SFelix Kuehling #define PROCESS_ACTIVE_TIME_MS 10 60026103436SFelix Kuehling 6015ec7e028SFelix Kuehling /* 8 byte handle containing GPU ID in the most significant 4 bytes and 6025ec7e028SFelix Kuehling * idr_handle in the least significant 4 bytes 6035ec7e028SFelix Kuehling */ 6045ec7e028SFelix Kuehling #define MAKE_HANDLE(gpu_id, idr_handle) \ 6055ec7e028SFelix Kuehling (((uint64_t)(gpu_id) << 32) + idr_handle) 6065ec7e028SFelix Kuehling #define GET_GPU_ID(handle) (handle >> 32) 6075ec7e028SFelix Kuehling #define GET_IDR_HANDLE(handle) (handle & 0xFFFFFFFF) 6085ec7e028SFelix Kuehling 609733fa1f7SYong Zhao enum kfd_pdd_bound { 610733fa1f7SYong Zhao PDD_UNBOUND = 0, 611733fa1f7SYong Zhao PDD_BOUND, 612733fa1f7SYong Zhao PDD_BOUND_SUSPENDED, 613733fa1f7SYong Zhao }; 614733fa1f7SYong Zhao 61519f6d2a6SOded Gabbay /* Data that is per-process-per device. */ 61619f6d2a6SOded Gabbay struct kfd_process_device { 61719f6d2a6SOded Gabbay /* 61819f6d2a6SOded Gabbay * List of all per-device data for a process. 61919f6d2a6SOded Gabbay * Starts from kfd_process.per_device_data. 62019f6d2a6SOded Gabbay */ 62119f6d2a6SOded Gabbay struct list_head per_device_list; 62219f6d2a6SOded Gabbay 62319f6d2a6SOded Gabbay /* The device that owns this data. */ 62419f6d2a6SOded Gabbay struct kfd_dev *dev; 62519f6d2a6SOded Gabbay 6269fd3f1bfSFelix Kuehling /* The process that owns this kfd_process_device. */ 6279fd3f1bfSFelix Kuehling struct kfd_process *process; 62819f6d2a6SOded Gabbay 62945102048SBen Goz /* per-process-per device QCM data structure */ 63045102048SBen Goz struct qcm_process_device qpd; 63145102048SBen Goz 63219f6d2a6SOded Gabbay /*Apertures*/ 63319f6d2a6SOded Gabbay uint64_t lds_base; 63419f6d2a6SOded Gabbay uint64_t lds_limit; 63519f6d2a6SOded Gabbay uint64_t gpuvm_base; 63619f6d2a6SOded Gabbay uint64_t gpuvm_limit; 63719f6d2a6SOded Gabbay uint64_t scratch_base; 63819f6d2a6SOded Gabbay uint64_t scratch_limit; 63919f6d2a6SOded Gabbay 640403575c4SFelix Kuehling /* VM context for GPUVM allocations */ 641b84394e2SFelix Kuehling struct file *drm_file; 642403575c4SFelix Kuehling void *vm; 643403575c4SFelix Kuehling 64452b29d73SFelix Kuehling /* GPUVM allocations storage */ 64552b29d73SFelix Kuehling struct idr alloc_idr; 64652b29d73SFelix Kuehling 6479fd3f1bfSFelix Kuehling /* Flag used to tell the pdd has dequeued from the dqm. 6489fd3f1bfSFelix Kuehling * This is used to prevent dev->dqm->ops.process_termination() from 6499fd3f1bfSFelix Kuehling * being called twice when it is already called in IOMMU callback 6509fd3f1bfSFelix Kuehling * function. 651a82918f1SBen Goz */ 6529fd3f1bfSFelix Kuehling bool already_dequeued; 65364d1c3a4SFelix Kuehling 65464d1c3a4SFelix Kuehling /* Is this process/pasid bound to this device? (amd_iommu_bind_pasid) */ 65564d1c3a4SFelix Kuehling enum kfd_pdd_bound bound; 65619f6d2a6SOded Gabbay }; 65719f6d2a6SOded Gabbay 65852a5fdceSAlexey Skidanov #define qpd_to_pdd(x) container_of(x, struct kfd_process_device, qpd) 65952a5fdceSAlexey Skidanov 6604a488a7aSOded Gabbay /* Process data */ 6614a488a7aSOded Gabbay struct kfd_process { 66219f6d2a6SOded Gabbay /* 66319f6d2a6SOded Gabbay * kfd_process are stored in an mm_struct*->kfd_process* 66419f6d2a6SOded Gabbay * hash table (kfd_processes in kfd_process.c) 66519f6d2a6SOded Gabbay */ 66619f6d2a6SOded Gabbay struct hlist_node kfd_processes; 66719f6d2a6SOded Gabbay 6689b56bb11SFelix Kuehling /* 6699b56bb11SFelix Kuehling * Opaque pointer to mm_struct. We don't hold a reference to 6709b56bb11SFelix Kuehling * it so it should never be dereferenced from here. This is 6719b56bb11SFelix Kuehling * only used for looking up processes by their mm. 6729b56bb11SFelix Kuehling */ 6739b56bb11SFelix Kuehling void *mm; 67419f6d2a6SOded Gabbay 6755ce10687SFelix Kuehling struct kref ref; 6765ce10687SFelix Kuehling struct work_struct release_work; 6775ce10687SFelix Kuehling 67819f6d2a6SOded Gabbay struct mutex mutex; 67919f6d2a6SOded Gabbay 68019f6d2a6SOded Gabbay /* 68119f6d2a6SOded Gabbay * In any process, the thread that started main() is the lead 68219f6d2a6SOded Gabbay * thread and outlives the rest. 68319f6d2a6SOded Gabbay * It is here because amd_iommu_bind_pasid wants a task_struct. 684894a8293SFelix Kuehling * It can also be used for safely getting a reference to the 685894a8293SFelix Kuehling * mm_struct of the process. 68619f6d2a6SOded Gabbay */ 68719f6d2a6SOded Gabbay struct task_struct *lead_thread; 68819f6d2a6SOded Gabbay 68919f6d2a6SOded Gabbay /* We want to receive a notification when the mm_struct is destroyed */ 69019f6d2a6SOded Gabbay struct mmu_notifier mmu_notifier; 69119f6d2a6SOded Gabbay 6926027b1bfSYong Zhao uint16_t pasid; 693a91e70e3SFelix Kuehling unsigned int doorbell_index; 69419f6d2a6SOded Gabbay 69519f6d2a6SOded Gabbay /* 69619f6d2a6SOded Gabbay * List of kfd_process_device structures, 69719f6d2a6SOded Gabbay * one for each device the process is using. 69819f6d2a6SOded Gabbay */ 69919f6d2a6SOded Gabbay struct list_head per_device_data; 70019f6d2a6SOded Gabbay 70145102048SBen Goz struct process_queue_manager pqm; 70245102048SBen Goz 70319f6d2a6SOded Gabbay /*Is the user space process 32 bit?*/ 70419f6d2a6SOded Gabbay bool is_32bit_user_mode; 705f3a39818SAndrew Lewycky 706f3a39818SAndrew Lewycky /* Event-related data */ 707f3a39818SAndrew Lewycky struct mutex event_mutex; 708482f0777SFelix Kuehling /* Event ID allocator and lookup */ 709482f0777SFelix Kuehling struct idr event_idr; 71050cb7dd9SFelix Kuehling /* Event page */ 71150cb7dd9SFelix Kuehling struct kfd_signal_page *signal_page; 712b9a5d0a5SFelix Kuehling size_t signal_mapped_size; 713f3a39818SAndrew Lewycky size_t signal_event_count; 714c986169fSFelix Kuehling bool signal_event_limit_reached; 715403575c4SFelix Kuehling 716403575c4SFelix Kuehling /* Information used for memory eviction */ 717403575c4SFelix Kuehling void *kgd_process_info; 718403575c4SFelix Kuehling /* Eviction fence that is attached to all the BOs of this process. The 719403575c4SFelix Kuehling * fence will be triggered during eviction and new one will be created 720403575c4SFelix Kuehling * during restore 721403575c4SFelix Kuehling */ 722403575c4SFelix Kuehling struct dma_fence *ef; 72326103436SFelix Kuehling 72426103436SFelix Kuehling /* Work items for evicting and restoring BOs */ 72526103436SFelix Kuehling struct delayed_work eviction_work; 72626103436SFelix Kuehling struct delayed_work restore_work; 72726103436SFelix Kuehling /* seqno of the last scheduled eviction */ 72826103436SFelix Kuehling unsigned int last_eviction_seqno; 72926103436SFelix Kuehling /* Approx. the last timestamp (in jiffies) when the process was 73026103436SFelix Kuehling * restored after an eviction 73126103436SFelix Kuehling */ 73226103436SFelix Kuehling unsigned long last_restore_timestamp; 733de9f26bbSKent Russell 734de9f26bbSKent Russell /* Kobj for our procfs */ 735de9f26bbSKent Russell struct kobject *kobj; 7366d220a7eSAmber Lin struct kobject *kobj_queues; 737de9f26bbSKent Russell struct attribute attr_pasid; 7384a488a7aSOded Gabbay }; 7394a488a7aSOded Gabbay 74064d1c3a4SFelix Kuehling #define KFD_PROCESS_TABLE_SIZE 5 /* bits: 32 entries */ 74164d1c3a4SFelix Kuehling extern DECLARE_HASHTABLE(kfd_processes_table, KFD_PROCESS_TABLE_SIZE); 74264d1c3a4SFelix Kuehling extern struct srcu_struct kfd_processes_srcu; 74364d1c3a4SFelix Kuehling 74476baee6cSOded Gabbay /** 74576baee6cSOded Gabbay * Ioctl function type. 74676baee6cSOded Gabbay * 74776baee6cSOded Gabbay * \param filep pointer to file structure. 74876baee6cSOded Gabbay * \param p amdkfd process pointer. 74976baee6cSOded Gabbay * \param data pointer to arg that was copied from user. 75076baee6cSOded Gabbay */ 75176baee6cSOded Gabbay typedef int amdkfd_ioctl_t(struct file *filep, struct kfd_process *p, 75276baee6cSOded Gabbay void *data); 75376baee6cSOded Gabbay 75476baee6cSOded Gabbay struct amdkfd_ioctl_desc { 75576baee6cSOded Gabbay unsigned int cmd; 75676baee6cSOded Gabbay int flags; 75776baee6cSOded Gabbay amdkfd_ioctl_t *func; 75876baee6cSOded Gabbay unsigned int cmd_drv; 75976baee6cSOded Gabbay const char *name; 76076baee6cSOded Gabbay }; 76167f7cf9fSshaoyunl bool kfd_dev_is_large_bar(struct kfd_dev *dev); 76276baee6cSOded Gabbay 7631679ae8fSFelix Kuehling int kfd_process_create_wq(void); 76419f6d2a6SOded Gabbay void kfd_process_destroy_wq(void); 765373d7080SFelix Kuehling struct kfd_process *kfd_create_process(struct file *filep); 76619f6d2a6SOded Gabbay struct kfd_process *kfd_get_process(const struct task_struct *); 767f3a39818SAndrew Lewycky struct kfd_process *kfd_lookup_process_by_pasid(unsigned int pasid); 76826103436SFelix Kuehling struct kfd_process *kfd_lookup_process_by_mm(const struct mm_struct *mm); 769abb208a8SFelix Kuehling void kfd_unref_process(struct kfd_process *p); 7706b95e797SFelix Kuehling int kfd_process_evict_queues(struct kfd_process *p); 7716b95e797SFelix Kuehling int kfd_process_restore_queues(struct kfd_process *p); 77226103436SFelix Kuehling void kfd_suspend_all_processes(void); 77326103436SFelix Kuehling int kfd_resume_all_processes(void); 77419f6d2a6SOded Gabbay 775b84394e2SFelix Kuehling int kfd_process_device_init_vm(struct kfd_process_device *pdd, 776b84394e2SFelix Kuehling struct file *drm_file); 77764c7f8cfSBen Goz struct kfd_process_device *kfd_bind_process_to_device(struct kfd_dev *dev, 77864c7f8cfSBen Goz struct kfd_process *p); 77919f6d2a6SOded Gabbay struct kfd_process_device *kfd_get_process_device_data(struct kfd_dev *dev, 780093c7d8cSAlexey Skidanov struct kfd_process *p); 781093c7d8cSAlexey Skidanov struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, 782093c7d8cSAlexey Skidanov struct kfd_process *p); 78319f6d2a6SOded Gabbay 784df03ef93SHarish Kasiviswanathan int kfd_reserved_mem_mmap(struct kfd_dev *dev, struct kfd_process *process, 785373d7080SFelix Kuehling struct vm_area_struct *vma); 786373d7080SFelix Kuehling 78752b29d73SFelix Kuehling /* KFD process API for creating and translating handles */ 78852b29d73SFelix Kuehling int kfd_process_device_create_obj_handle(struct kfd_process_device *pdd, 78952b29d73SFelix Kuehling void *mem); 79052b29d73SFelix Kuehling void *kfd_process_device_translate_handle(struct kfd_process_device *p, 79152b29d73SFelix Kuehling int handle); 79252b29d73SFelix Kuehling void kfd_process_device_remove_obj_handle(struct kfd_process_device *pdd, 79352b29d73SFelix Kuehling int handle); 79452b29d73SFelix Kuehling 795775921edSAlexey Skidanov /* Process device data iterator */ 7968eabaf54SKent Russell struct kfd_process_device *kfd_get_first_process_device_data( 7978eabaf54SKent Russell struct kfd_process *p); 7988eabaf54SKent Russell struct kfd_process_device *kfd_get_next_process_device_data( 7998eabaf54SKent Russell struct kfd_process *p, 800775921edSAlexey Skidanov struct kfd_process_device *pdd); 801775921edSAlexey Skidanov bool kfd_has_process_device_data(struct kfd_process *p); 802775921edSAlexey Skidanov 80319f6d2a6SOded Gabbay /* PASIDs */ 80419f6d2a6SOded Gabbay int kfd_pasid_init(void); 80519f6d2a6SOded Gabbay void kfd_pasid_exit(void); 80619f6d2a6SOded Gabbay bool kfd_set_pasid_limit(unsigned int new_limit); 80719f6d2a6SOded Gabbay unsigned int kfd_get_pasid_limit(void); 80819f6d2a6SOded Gabbay unsigned int kfd_pasid_alloc(void); 80919f6d2a6SOded Gabbay void kfd_pasid_free(unsigned int pasid); 81019f6d2a6SOded Gabbay 81119f6d2a6SOded Gabbay /* Doorbells */ 812ef568db7SFelix Kuehling size_t kfd_doorbell_process_slice(struct kfd_dev *kfd); 813735df2baSFelix Kuehling int kfd_doorbell_init(struct kfd_dev *kfd); 814735df2baSFelix Kuehling void kfd_doorbell_fini(struct kfd_dev *kfd); 815df03ef93SHarish Kasiviswanathan int kfd_doorbell_mmap(struct kfd_dev *dev, struct kfd_process *process, 816df03ef93SHarish Kasiviswanathan struct vm_area_struct *vma); 817ada2b29cSFelix Kuehling void __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, 81819f6d2a6SOded Gabbay unsigned int *doorbell_off); 81919f6d2a6SOded Gabbay void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr); 82019f6d2a6SOded Gabbay u32 read_kernel_doorbell(u32 __iomem *db); 821ada2b29cSFelix Kuehling void write_kernel_doorbell(void __iomem *db, u32 value); 8229d7d0248SFelix Kuehling void write_kernel_doorbell64(void __iomem *db, u64 value); 823339903faSYong Zhao unsigned int kfd_get_doorbell_dw_offset_in_bar(struct kfd_dev *kfd, 82419f6d2a6SOded Gabbay struct kfd_process *process, 825ef568db7SFelix Kuehling unsigned int doorbell_id); 826a91e70e3SFelix Kuehling phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev, 827a91e70e3SFelix Kuehling struct kfd_process *process); 828a91e70e3SFelix Kuehling int kfd_alloc_process_doorbells(struct kfd_process *process); 829a91e70e3SFelix Kuehling void kfd_free_process_doorbells(struct kfd_process *process); 83019f6d2a6SOded Gabbay 8316e81090bSOded Gabbay /* GTT Sub-Allocator */ 8326e81090bSOded Gabbay 8336e81090bSOded Gabbay int kfd_gtt_sa_allocate(struct kfd_dev *kfd, unsigned int size, 8346e81090bSOded Gabbay struct kfd_mem_obj **mem_obj); 8356e81090bSOded Gabbay 8366e81090bSOded Gabbay int kfd_gtt_sa_free(struct kfd_dev *kfd, struct kfd_mem_obj *mem_obj); 8376e81090bSOded Gabbay 8384a488a7aSOded Gabbay extern struct device *kfd_device; 8394a488a7aSOded Gabbay 840de9f26bbSKent Russell /* KFD's procfs */ 841de9f26bbSKent Russell void kfd_procfs_init(void); 842de9f26bbSKent Russell void kfd_procfs_shutdown(void); 8436d220a7eSAmber Lin int kfd_procfs_add_queue(struct queue *q); 8446d220a7eSAmber Lin void kfd_procfs_del_queue(struct queue *q); 845de9f26bbSKent Russell 8465b5c4e40SEvgeny Pinchuk /* Topology */ 8475b5c4e40SEvgeny Pinchuk int kfd_topology_init(void); 8485b5c4e40SEvgeny Pinchuk void kfd_topology_shutdown(void); 8495b5c4e40SEvgeny Pinchuk int kfd_topology_add_device(struct kfd_dev *gpu); 8505b5c4e40SEvgeny Pinchuk int kfd_topology_remove_device(struct kfd_dev *gpu); 8513a87177eSHarish Kasiviswanathan struct kfd_topology_device *kfd_topology_device_by_proximity_domain( 8523a87177eSHarish Kasiviswanathan uint32_t proximity_domain); 85344d8cc6fSYong Zhao struct kfd_topology_device *kfd_topology_device_by_id(uint32_t gpu_id); 8545b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_id(uint32_t gpu_id); 8555b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev); 8561dde0ea9SFelix Kuehling struct kfd_dev *kfd_device_by_kgd(const struct kgd_dev *kgd); 8576d82eb0eSHarish Kasiviswanathan int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_dev **kdev); 858520b8fb7SFelix Kuehling int kfd_numa_node_to_apic_id(int numa_node_id); 8595b5c4e40SEvgeny Pinchuk 8604a488a7aSOded Gabbay /* Interrupts */ 8612249d558SAndrew Lewycky int kfd_interrupt_init(struct kfd_dev *dev); 8622249d558SAndrew Lewycky void kfd_interrupt_exit(struct kfd_dev *dev); 8632249d558SAndrew Lewycky bool enqueue_ih_ring_entry(struct kfd_dev *kfd, const void *ih_ring_entry); 86458e69886SLan Xiao bool interrupt_is_wanted(struct kfd_dev *dev, 86558e69886SLan Xiao const uint32_t *ih_ring_entry, 86658e69886SLan Xiao uint32_t *patched_ihre, bool *flag); 8674a488a7aSOded Gabbay 86819f6d2a6SOded Gabbay /* amdkfd Apertures */ 86919f6d2a6SOded Gabbay int kfd_init_apertures(struct kfd_process *process); 87019f6d2a6SOded Gabbay 871ed6e6a34SBen Goz /* Queue Context Management */ 872e88a614cSEdward O'Callaghan int init_queue(struct queue **q, const struct queue_properties *properties); 873ed6e6a34SBen Goz void uninit_queue(struct queue *q); 87445102048SBen Goz void print_queue_properties(struct queue_properties *q); 875ed6e6a34SBen Goz void print_queue(struct queue *q); 876ed6e6a34SBen Goz 8774b8f589bSBen Goz struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type, 8784b8f589bSBen Goz struct kfd_dev *dev); 879ee04955aSFelix Kuehling struct mqd_manager *mqd_manager_init_cik_hawaii(enum KFD_MQD_TYPE type, 880ee04955aSFelix Kuehling struct kfd_dev *dev); 8814b8f589bSBen Goz struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type, 8824b8f589bSBen Goz struct kfd_dev *dev); 883ee04955aSFelix Kuehling struct mqd_manager *mqd_manager_init_vi_tonga(enum KFD_MQD_TYPE type, 884ee04955aSFelix Kuehling struct kfd_dev *dev); 885b91d43ddSFelix Kuehling struct mqd_manager *mqd_manager_init_v9(enum KFD_MQD_TYPE type, 886b91d43ddSFelix Kuehling struct kfd_dev *dev); 88714328aa5SPhilip Cox struct mqd_manager *mqd_manager_init_v10(enum KFD_MQD_TYPE type, 88814328aa5SPhilip Cox struct kfd_dev *dev); 88964c7f8cfSBen Goz struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev); 89064c7f8cfSBen Goz void device_queue_manager_uninit(struct device_queue_manager *dqm); 891241f24f8SBen Goz struct kernel_queue *kernel_queue_init(struct kfd_dev *dev, 892241f24f8SBen Goz enum kfd_queue_type type); 893c2a77fdeSFelix Kuehling void kernel_queue_uninit(struct kernel_queue *kq, bool hanging); 8942640c3faSshaoyunl int kfd_process_vm_fault(struct device_queue_manager *dqm, unsigned int pasid); 895241f24f8SBen Goz 89645102048SBen Goz /* Process Queue Manager */ 89745102048SBen Goz struct process_queue_node { 89845102048SBen Goz struct queue *q; 89945102048SBen Goz struct kernel_queue *kq; 90045102048SBen Goz struct list_head process_queue_list; 90145102048SBen Goz }; 90245102048SBen Goz 9039fd3f1bfSFelix Kuehling void kfd_process_dequeue_from_device(struct kfd_process_device *pdd); 9049fd3f1bfSFelix Kuehling void kfd_process_dequeue_from_all_devices(struct kfd_process *p); 90545102048SBen Goz int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p); 90645102048SBen Goz void pqm_uninit(struct process_queue_manager *pqm); 90745102048SBen Goz int pqm_create_queue(struct process_queue_manager *pqm, 90845102048SBen Goz struct kfd_dev *dev, 90945102048SBen Goz struct file *f, 91045102048SBen Goz struct queue_properties *properties, 911e47a8b52SYong Zhao unsigned int *qid, 912e47a8b52SYong Zhao uint32_t *p_doorbell_offset_in_process); 91345102048SBen Goz int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid); 91445102048SBen Goz int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid, 91545102048SBen Goz struct queue_properties *p); 91639e7f331SFelix Kuehling int pqm_set_cu_mask(struct process_queue_manager *pqm, unsigned int qid, 91739e7f331SFelix Kuehling struct queue_properties *p); 918eb82da1dSOak Zeng int pqm_set_gws(struct process_queue_manager *pqm, unsigned int qid, 919eb82da1dSOak Zeng void *gws); 920fbeb661bSYair Shachar struct kernel_queue *pqm_get_kernel_queue(struct process_queue_manager *pqm, 921fbeb661bSYair Shachar unsigned int qid); 9225df099e8SJay Cornwall int pqm_get_wave_state(struct process_queue_manager *pqm, 9235df099e8SJay Cornwall unsigned int qid, 9245df099e8SJay Cornwall void __user *ctl_stack, 9255df099e8SJay Cornwall u32 *ctl_stack_used_size, 9265df099e8SJay Cornwall u32 *save_area_used_size); 92745102048SBen Goz 928788bf83dSYair Shachar int amdkfd_fence_wait_timeout(unsigned int *fence_addr, 929788bf83dSYair Shachar unsigned int fence_value, 9308c72c3d7SYong Zhao unsigned int timeout_ms); 931788bf83dSYair Shachar 932ed6e6a34SBen Goz /* Packet Manager */ 933ed6e6a34SBen Goz 93464c7f8cfSBen Goz #define KFD_FENCE_COMPLETED (100) 93564c7f8cfSBen Goz #define KFD_FENCE_INIT (10) 936241f24f8SBen Goz 937ed6e6a34SBen Goz struct packet_manager { 938ed6e6a34SBen Goz struct device_queue_manager *dqm; 939ed6e6a34SBen Goz struct kernel_queue *priv_queue; 940ed6e6a34SBen Goz struct mutex lock; 941ed6e6a34SBen Goz bool allocated; 942ed6e6a34SBen Goz struct kfd_mem_obj *ib_buffer_obj; 943851a645eSFelix Kuehling unsigned int ib_size_bytes; 944819ec5acSFelix Kuehling bool is_over_subscription; 945f6e27ff1SFelix Kuehling 946f6e27ff1SFelix Kuehling const struct packet_manager_funcs *pmf; 947ed6e6a34SBen Goz }; 948ed6e6a34SBen Goz 949f6e27ff1SFelix Kuehling struct packet_manager_funcs { 950f6e27ff1SFelix Kuehling /* Support ASIC-specific packet formats for PM4 packets */ 951f6e27ff1SFelix Kuehling int (*map_process)(struct packet_manager *pm, uint32_t *buffer, 952f6e27ff1SFelix Kuehling struct qcm_process_device *qpd); 953f6e27ff1SFelix Kuehling int (*runlist)(struct packet_manager *pm, uint32_t *buffer, 954f6e27ff1SFelix Kuehling uint64_t ib, size_t ib_size_in_dwords, bool chain); 955f6e27ff1SFelix Kuehling int (*set_resources)(struct packet_manager *pm, uint32_t *buffer, 956f6e27ff1SFelix Kuehling struct scheduling_resources *res); 957f6e27ff1SFelix Kuehling int (*map_queues)(struct packet_manager *pm, uint32_t *buffer, 958f6e27ff1SFelix Kuehling struct queue *q, bool is_static); 959f6e27ff1SFelix Kuehling int (*unmap_queues)(struct packet_manager *pm, uint32_t *buffer, 960f6e27ff1SFelix Kuehling enum kfd_queue_type type, 961f6e27ff1SFelix Kuehling enum kfd_unmap_queues_filter mode, 962f6e27ff1SFelix Kuehling uint32_t filter_param, bool reset, 963f6e27ff1SFelix Kuehling unsigned int sdma_engine); 964f6e27ff1SFelix Kuehling int (*query_status)(struct packet_manager *pm, uint32_t *buffer, 965f6e27ff1SFelix Kuehling uint64_t fence_address, uint32_t fence_value); 966f6e27ff1SFelix Kuehling int (*release_mem)(uint64_t gpu_addr, uint32_t *buffer); 967f6e27ff1SFelix Kuehling 968f6e27ff1SFelix Kuehling /* Packet sizes */ 969f6e27ff1SFelix Kuehling int map_process_size; 970f6e27ff1SFelix Kuehling int runlist_size; 971f6e27ff1SFelix Kuehling int set_resources_size; 972f6e27ff1SFelix Kuehling int map_queues_size; 973f6e27ff1SFelix Kuehling int unmap_queues_size; 974f6e27ff1SFelix Kuehling int query_status_size; 975f6e27ff1SFelix Kuehling int release_mem_size; 976f6e27ff1SFelix Kuehling }; 977f6e27ff1SFelix Kuehling 978f6e27ff1SFelix Kuehling extern const struct packet_manager_funcs kfd_vi_pm_funcs; 979454150b1SFelix Kuehling extern const struct packet_manager_funcs kfd_v9_pm_funcs; 980f6e27ff1SFelix Kuehling 98164c7f8cfSBen Goz int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm); 982c2a77fdeSFelix Kuehling void pm_uninit(struct packet_manager *pm, bool hanging); 98364c7f8cfSBen Goz int pm_send_set_resources(struct packet_manager *pm, 98464c7f8cfSBen Goz struct scheduling_resources *res); 98564c7f8cfSBen Goz int pm_send_runlist(struct packet_manager *pm, struct list_head *dqm_queues); 98664c7f8cfSBen Goz int pm_send_query_status(struct packet_manager *pm, uint64_t fence_address, 98764c7f8cfSBen Goz uint32_t fence_value); 98864c7f8cfSBen Goz 98964c7f8cfSBen Goz int pm_send_unmap_queue(struct packet_manager *pm, enum kfd_queue_type type, 9907da2bcf8SYong Zhao enum kfd_unmap_queues_filter mode, 99164c7f8cfSBen Goz uint32_t filter_param, bool reset, 99264c7f8cfSBen Goz unsigned int sdma_engine); 99364c7f8cfSBen Goz 994241f24f8SBen Goz void pm_release_ib(struct packet_manager *pm); 995241f24f8SBen Goz 996454150b1SFelix Kuehling /* Following PM funcs can be shared among VI and AI */ 997454150b1SFelix Kuehling unsigned int pm_build_pm4_header(unsigned int opcode, size_t packet_size); 99814328aa5SPhilip Cox 99919f6d2a6SOded Gabbay uint64_t kfd_get_number_elems(struct kfd_dev *kfd); 100019f6d2a6SOded Gabbay 1001f3a39818SAndrew Lewycky /* Events */ 1002f3a39818SAndrew Lewycky extern const struct kfd_event_interrupt_class event_interrupt_class_cik; 1003ca750681SFelix Kuehling extern const struct kfd_event_interrupt_class event_interrupt_class_v9; 1004ca750681SFelix Kuehling 1005930c5ff4SAlexey Skidanov extern const struct kfd_device_global_init_class device_global_init_class_cik; 1006f3a39818SAndrew Lewycky 1007f3a39818SAndrew Lewycky void kfd_event_init_process(struct kfd_process *p); 1008f3a39818SAndrew Lewycky void kfd_event_free_process(struct kfd_process *p); 1009f3a39818SAndrew Lewycky int kfd_event_mmap(struct kfd_process *process, struct vm_area_struct *vma); 1010f3a39818SAndrew Lewycky int kfd_wait_on_events(struct kfd_process *p, 101159d3e8beSAlexey Skidanov uint32_t num_events, void __user *data, 1012f3a39818SAndrew Lewycky bool all, uint32_t user_timeout_ms, 1013fdf0c833SFelix Kuehling uint32_t *wait_result); 1014f3a39818SAndrew Lewycky void kfd_signal_event_interrupt(unsigned int pasid, uint32_t partial_id, 1015f3a39818SAndrew Lewycky uint32_t valid_id_bits); 101659d3e8beSAlexey Skidanov void kfd_signal_iommu_event(struct kfd_dev *dev, 101759d3e8beSAlexey Skidanov unsigned int pasid, unsigned long address, 101859d3e8beSAlexey Skidanov bool is_write_requested, bool is_execute_requested); 1019930c5ff4SAlexey Skidanov void kfd_signal_hw_exception_event(unsigned int pasid); 1020f3a39818SAndrew Lewycky int kfd_set_event(struct kfd_process *p, uint32_t event_id); 1021f3a39818SAndrew Lewycky int kfd_reset_event(struct kfd_process *p, uint32_t event_id); 10220fc8011fSFelix Kuehling int kfd_event_page_set(struct kfd_process *p, void *kernel_address, 10230fc8011fSFelix Kuehling uint64_t size); 1024f3a39818SAndrew Lewycky int kfd_event_create(struct file *devkfd, struct kfd_process *p, 1025f3a39818SAndrew Lewycky uint32_t event_type, bool auto_reset, uint32_t node_id, 1026f3a39818SAndrew Lewycky uint32_t *event_id, uint32_t *event_trigger_data, 1027f3a39818SAndrew Lewycky uint64_t *event_page_offset, uint32_t *event_slot_index); 1028f3a39818SAndrew Lewycky int kfd_event_destroy(struct kfd_process *p, uint32_t event_id); 1029f3a39818SAndrew Lewycky 10302640c3faSshaoyunl void kfd_signal_vm_fault_event(struct kfd_dev *dev, unsigned int pasid, 10312640c3faSshaoyunl struct kfd_vm_fault_info *info); 10322640c3faSshaoyunl 1033e42051d2SShaoyun Liu void kfd_signal_reset_event(struct kfd_dev *dev); 1034e42051d2SShaoyun Liu 1035403575c4SFelix Kuehling void kfd_flush_tlb(struct kfd_process_device *pdd); 1036403575c4SFelix Kuehling 1037c3447e81SBen Goz int dbgdev_wave_reset_wavefronts(struct kfd_dev *dev, struct kfd_process *p); 1038c3447e81SBen Goz 1039e42051d2SShaoyun Liu bool kfd_is_locked(void); 1040e42051d2SShaoyun Liu 1041f756e631SHarish Kasiviswanathan /* Compute profile */ 1042f756e631SHarish Kasiviswanathan void kfd_inc_compute_active(struct kfd_dev *dev); 1043f756e631SHarish Kasiviswanathan void kfd_dec_compute_active(struct kfd_dev *dev); 1044f756e631SHarish Kasiviswanathan 10456b855f7bSHarish Kasiviswanathan /* Cgroup Support */ 10466b855f7bSHarish Kasiviswanathan /* Check with device cgroup if @kfd device is accessible */ 10476b855f7bSHarish Kasiviswanathan static inline int kfd_devcgroup_check_permission(struct kfd_dev *kfd) 10486b855f7bSHarish Kasiviswanathan { 10496b855f7bSHarish Kasiviswanathan #if defined(CONFIG_CGROUP_DEVICE) 10506b855f7bSHarish Kasiviswanathan struct drm_device *ddev = kfd->ddev; 10516b855f7bSHarish Kasiviswanathan 10526b855f7bSHarish Kasiviswanathan return devcgroup_check_permission(DEVCG_DEV_CHAR, ddev->driver->major, 10536b855f7bSHarish Kasiviswanathan ddev->render->index, 10546b855f7bSHarish Kasiviswanathan DEVCG_ACC_WRITE | DEVCG_ACC_READ); 10556b855f7bSHarish Kasiviswanathan #else 10566b855f7bSHarish Kasiviswanathan return 0; 10576b855f7bSHarish Kasiviswanathan #endif 10586b855f7bSHarish Kasiviswanathan } 10596b855f7bSHarish Kasiviswanathan 1060851a645eSFelix Kuehling /* Debugfs */ 1061851a645eSFelix Kuehling #if defined(CONFIG_DEBUG_FS) 1062851a645eSFelix Kuehling 1063851a645eSFelix Kuehling void kfd_debugfs_init(void); 1064851a645eSFelix Kuehling void kfd_debugfs_fini(void); 1065851a645eSFelix Kuehling int kfd_debugfs_mqds_by_process(struct seq_file *m, void *data); 1066851a645eSFelix Kuehling int pqm_debugfs_mqds(struct seq_file *m, void *data); 1067851a645eSFelix Kuehling int kfd_debugfs_hqds_by_device(struct seq_file *m, void *data); 1068851a645eSFelix Kuehling int dqm_debugfs_hqds(struct seq_file *m, void *data); 1069851a645eSFelix Kuehling int kfd_debugfs_rls_by_device(struct seq_file *m, void *data); 1070851a645eSFelix Kuehling int pm_debugfs_runlist(struct seq_file *m, void *data); 1071851a645eSFelix Kuehling 1072a29ec470SShaoyun Liu int kfd_debugfs_hang_hws(struct kfd_dev *dev); 1073a29ec470SShaoyun Liu int pm_debugfs_hang_hws(struct packet_manager *pm); 1074a29ec470SShaoyun Liu int dqm_debugfs_execute_queues(struct device_queue_manager *dqm); 1075a29ec470SShaoyun Liu 1076851a645eSFelix Kuehling #else 1077851a645eSFelix Kuehling 1078851a645eSFelix Kuehling static inline void kfd_debugfs_init(void) {} 1079851a645eSFelix Kuehling static inline void kfd_debugfs_fini(void) {} 1080851a645eSFelix Kuehling 1081851a645eSFelix Kuehling #endif 1082851a645eSFelix Kuehling 10834a488a7aSOded Gabbay #endif 1084