1130e0371SOded Gabbay /* 2130e0371SOded Gabbay * Copyright 2014 Advanced Micro Devices, Inc. 3130e0371SOded Gabbay * 4130e0371SOded Gabbay * Permission is hereby granted, free of charge, to any person obtaining a 5130e0371SOded Gabbay * copy of this software and associated documentation files (the "Software"), 6130e0371SOded Gabbay * to deal in the Software without restriction, including without limitation 7130e0371SOded Gabbay * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8130e0371SOded Gabbay * and/or sell copies of the Software, and to permit persons to whom the 9130e0371SOded Gabbay * Software is furnished to do so, subject to the following conditions: 10130e0371SOded Gabbay * 11130e0371SOded Gabbay * The above copyright notice and this permission notice shall be included in 12130e0371SOded Gabbay * all copies or substantial portions of the Software. 13130e0371SOded Gabbay * 14130e0371SOded Gabbay * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15130e0371SOded Gabbay * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16130e0371SOded Gabbay * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17130e0371SOded Gabbay * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18130e0371SOded Gabbay * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19130e0371SOded Gabbay * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20130e0371SOded Gabbay * OTHER DEALINGS IN THE SOFTWARE. 21130e0371SOded Gabbay */ 22130e0371SOded Gabbay 23130e0371SOded Gabbay /* amdgpu_amdkfd.h defines the private interface between amdgpu and amdkfd. */ 24130e0371SOded Gabbay 25130e0371SOded Gabbay #ifndef AMDGPU_AMDKFD_H_INCLUDED 26130e0371SOded Gabbay #define AMDGPU_AMDKFD_H_INCLUDED 27130e0371SOded Gabbay 28130e0371SOded Gabbay #include <linux/types.h> 297420f482SOded Gabbay #include <linux/mm.h> 305ae0283eSFelix Kuehling #include <linux/workqueue.h> 31130e0371SOded Gabbay #include <kgd_kfd_interface.h> 32a46a2cd1SFelix Kuehling #include <drm/ttm/ttm_execbuf_util.h> 33a46a2cd1SFelix Kuehling #include "amdgpu_sync.h" 34a46a2cd1SFelix Kuehling #include "amdgpu_vm.h" 35130e0371SOded Gabbay 36611736d8SFelix Kuehling extern uint64_t amdgpu_amdkfd_total_mem_size; 37d8d019ccSFelix Kuehling 38130e0371SOded Gabbay struct amdgpu_device; 39130e0371SOded Gabbay 40a46a2cd1SFelix Kuehling struct kfd_bo_va_list { 41a46a2cd1SFelix Kuehling struct list_head bo_list; 42a46a2cd1SFelix Kuehling struct amdgpu_bo_va *bo_va; 43a46a2cd1SFelix Kuehling void *kgd_dev; 44a46a2cd1SFelix Kuehling bool is_mapped; 45a46a2cd1SFelix Kuehling uint64_t va; 46a46a2cd1SFelix Kuehling uint64_t pte_flags; 47a46a2cd1SFelix Kuehling }; 48a46a2cd1SFelix Kuehling 49130e0371SOded Gabbay struct kgd_mem { 50a46a2cd1SFelix Kuehling struct mutex lock; 51130e0371SOded Gabbay struct amdgpu_bo *bo; 52a46a2cd1SFelix Kuehling struct list_head bo_va_list; 53a46a2cd1SFelix Kuehling /* protected by amdkfd_process_info.lock */ 54a46a2cd1SFelix Kuehling struct ttm_validate_buffer validate_list; 55a46a2cd1SFelix Kuehling struct ttm_validate_buffer resv_list; 56a46a2cd1SFelix Kuehling uint32_t domain; 57a46a2cd1SFelix Kuehling unsigned int mapped_to_gpu_memory; 58a46a2cd1SFelix Kuehling uint64_t va; 59a46a2cd1SFelix Kuehling 60a46a2cd1SFelix Kuehling uint32_t mapping_flags; 61a46a2cd1SFelix Kuehling 625ae0283eSFelix Kuehling atomic_t invalid; 63a46a2cd1SFelix Kuehling struct amdkfd_process_info *process_info; 645ae0283eSFelix Kuehling struct page **user_pages; 65a46a2cd1SFelix Kuehling 66a46a2cd1SFelix Kuehling struct amdgpu_sync sync; 67a46a2cd1SFelix Kuehling 68a46a2cd1SFelix Kuehling bool aql_queue; 69130e0371SOded Gabbay }; 70130e0371SOded Gabbay 71d8d019ccSFelix Kuehling /* KFD Memory Eviction */ 72d8d019ccSFelix Kuehling struct amdgpu_amdkfd_fence { 73d8d019ccSFelix Kuehling struct dma_fence base; 74d8d019ccSFelix Kuehling struct mm_struct *mm; 75d8d019ccSFelix Kuehling spinlock_t lock; 76d8d019ccSFelix Kuehling char timeline_name[TASK_COMM_LEN]; 77d8d019ccSFelix Kuehling }; 78d8d019ccSFelix Kuehling 79611736d8SFelix Kuehling struct amdgpu_kfd_dev { 80611736d8SFelix Kuehling struct kfd_dev *dev; 81611736d8SFelix Kuehling uint64_t vram_used; 82611736d8SFelix Kuehling }; 83611736d8SFelix Kuehling 84d8d019ccSFelix Kuehling struct amdgpu_amdkfd_fence *amdgpu_amdkfd_fence_create(u64 context, 85d8d019ccSFelix Kuehling struct mm_struct *mm); 86d8d019ccSFelix Kuehling bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm); 87d8d019ccSFelix Kuehling struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f); 88d8d019ccSFelix Kuehling 89a46a2cd1SFelix Kuehling struct amdkfd_process_info { 90a46a2cd1SFelix Kuehling /* List head of all VMs that belong to a KFD process */ 91a46a2cd1SFelix Kuehling struct list_head vm_list_head; 92a46a2cd1SFelix Kuehling /* List head for all KFD BOs that belong to a KFD process. */ 93a46a2cd1SFelix Kuehling struct list_head kfd_bo_list; 945ae0283eSFelix Kuehling /* List of userptr BOs that are valid or invalid */ 955ae0283eSFelix Kuehling struct list_head userptr_valid_list; 965ae0283eSFelix Kuehling struct list_head userptr_inval_list; 97a46a2cd1SFelix Kuehling /* Lock to protect kfd_bo_list */ 98a46a2cd1SFelix Kuehling struct mutex lock; 99a46a2cd1SFelix Kuehling 100a46a2cd1SFelix Kuehling /* Number of VMs */ 101a46a2cd1SFelix Kuehling unsigned int n_vms; 102a46a2cd1SFelix Kuehling /* Eviction Fence */ 103a46a2cd1SFelix Kuehling struct amdgpu_amdkfd_fence *eviction_fence; 1045ae0283eSFelix Kuehling 1055ae0283eSFelix Kuehling /* MMU-notifier related fields */ 1065ae0283eSFelix Kuehling atomic_t evicted_bos; 1075ae0283eSFelix Kuehling struct delayed_work restore_userptr_work; 1085ae0283eSFelix Kuehling struct pid *pid; 109a46a2cd1SFelix Kuehling }; 110a46a2cd1SFelix Kuehling 111efb1c658SOded Gabbay int amdgpu_amdkfd_init(void); 112130e0371SOded Gabbay void amdgpu_amdkfd_fini(void); 113130e0371SOded Gabbay 114dc102c43SAndres Rodriguez void amdgpu_amdkfd_suspend(struct amdgpu_device *adev); 115dc102c43SAndres Rodriguez int amdgpu_amdkfd_resume(struct amdgpu_device *adev); 116dc102c43SAndres Rodriguez void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev, 117130e0371SOded Gabbay const void *ih_ring_entry); 118dc102c43SAndres Rodriguez void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev); 119dc102c43SAndres Rodriguez void amdgpu_amdkfd_device_init(struct amdgpu_device *adev); 120dc102c43SAndres Rodriguez void amdgpu_amdkfd_device_fini(struct amdgpu_device *adev); 121130e0371SOded Gabbay 122e52482deSFelix Kuehling int amdgpu_amdkfd_evict_userptr(struct kgd_mem *mem, struct mm_struct *mm); 1234c660c8fSFelix Kuehling int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum kgd_engine_type engine, 1244c660c8fSFelix Kuehling uint32_t vmid, uint64_t gpu_addr, 1254c660c8fSFelix Kuehling uint32_t *ib_cmd, uint32_t ib_len); 12601c097dbSFelix Kuehling void amdgpu_amdkfd_set_compute_idle(struct kgd_dev *kgd, bool idle); 1274c660c8fSFelix Kuehling 128130e0371SOded Gabbay struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void); 129ff758a12SBen Goz struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void); 130d5a114a6SFelix Kuehling struct kfd2kgd_calls *amdgpu_amdkfd_gfx_9_0_get_functions(void); 131130e0371SOded Gabbay 132155494dbSFelix Kuehling bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid); 133155494dbSFelix Kuehling 1345c6dd71eSShaoyun Liu int amdgpu_amdkfd_pre_reset(struct amdgpu_device *adev); 1355c6dd71eSShaoyun Liu 1365c6dd71eSShaoyun Liu int amdgpu_amdkfd_post_reset(struct amdgpu_device *adev); 1375c6dd71eSShaoyun Liu 13824da5a9cSShaoyun Liu void amdgpu_amdkfd_gpu_reset(struct kgd_dev *kgd); 13924da5a9cSShaoyun Liu 140130e0371SOded Gabbay /* Shared API */ 1417cd52c91SAmber Lin int amdgpu_amdkfd_alloc_gtt_mem(struct kgd_dev *kgd, size_t size, 142130e0371SOded Gabbay void **mem_obj, uint64_t *gpu_addr, 14315426dbbSYong Zhao void **cpu_ptr, bool mqd_gfx9); 1447cd52c91SAmber Lin void amdgpu_amdkfd_free_gtt_mem(struct kgd_dev *kgd, void *mem_obj); 1457cd52c91SAmber Lin void amdgpu_amdkfd_get_local_mem_info(struct kgd_dev *kgd, 14630f1c042SHarish Kasiviswanathan struct kfd_local_mem_info *mem_info); 1477cd52c91SAmber Lin uint64_t amdgpu_amdkfd_get_gpu_clock_counter(struct kgd_dev *kgd); 148130e0371SOded Gabbay 1497cd52c91SAmber Lin uint32_t amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct kgd_dev *kgd); 1507cd52c91SAmber Lin void amdgpu_amdkfd_get_cu_info(struct kgd_dev *kgd, struct kfd_cu_info *cu_info); 1511dde0ea9SFelix Kuehling int amdgpu_amdkfd_get_dmabuf_info(struct kgd_dev *kgd, int dma_buf_fd, 1521dde0ea9SFelix Kuehling struct kgd_dev **dmabuf_kgd, 1531dde0ea9SFelix Kuehling uint64_t *bo_size, void *metadata_buffer, 1541dde0ea9SFelix Kuehling size_t buffer_size, uint32_t *metadata_size, 1551dde0ea9SFelix Kuehling uint32_t *flags); 1569f0a0b41SKent Russell uint64_t amdgpu_amdkfd_get_vram_usage(struct kgd_dev *kgd); 157db8b62c0SShaoyun Liu uint64_t amdgpu_amdkfd_get_hive_id(struct kgd_dev *kgd); 158130e0371SOded Gabbay 15970539bd7SFelix Kuehling #define read_user_wptr(mmptr, wptr, dst) \ 16070539bd7SFelix Kuehling ({ \ 16170539bd7SFelix Kuehling bool valid = false; \ 16270539bd7SFelix Kuehling if ((mmptr) && (wptr)) { \ 16370539bd7SFelix Kuehling if ((mmptr) == current->mm) { \ 16470539bd7SFelix Kuehling valid = !get_user((dst), (wptr)); \ 16570539bd7SFelix Kuehling } else if (current->mm == NULL) { \ 16670539bd7SFelix Kuehling use_mm(mmptr); \ 16770539bd7SFelix Kuehling valid = !get_user((dst), (wptr)); \ 16870539bd7SFelix Kuehling unuse_mm(mmptr); \ 16970539bd7SFelix Kuehling } \ 17070539bd7SFelix Kuehling } \ 17170539bd7SFelix Kuehling valid; \ 17270539bd7SFelix Kuehling }) 17370539bd7SFelix Kuehling 174a46a2cd1SFelix Kuehling /* GPUVM API */ 1751685b01aSOak Zeng int amdgpu_amdkfd_gpuvm_create_process_vm(struct kgd_dev *kgd, unsigned int pasid, 1761685b01aSOak Zeng void **vm, void **process_info, 177a46a2cd1SFelix Kuehling struct dma_fence **ef); 178ede0dd86SFelix Kuehling int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct kgd_dev *kgd, 1791685b01aSOak Zeng struct file *filp, unsigned int pasid, 180ede0dd86SFelix Kuehling void **vm, void **process_info, 181ede0dd86SFelix Kuehling struct dma_fence **ef); 182ede0dd86SFelix Kuehling void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev, 183ede0dd86SFelix Kuehling struct amdgpu_vm *vm); 184a46a2cd1SFelix Kuehling void amdgpu_amdkfd_gpuvm_destroy_process_vm(struct kgd_dev *kgd, void *vm); 185bf47afbaSOak Zeng void amdgpu_amdkfd_gpuvm_release_process_vm(struct kgd_dev *kgd, void *vm); 186e715c6d0SShaoyun Liu uint64_t amdgpu_amdkfd_gpuvm_get_process_page_dir(void *vm); 187a46a2cd1SFelix Kuehling int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu( 188a46a2cd1SFelix Kuehling struct kgd_dev *kgd, uint64_t va, uint64_t size, 189a46a2cd1SFelix Kuehling void *vm, struct kgd_mem **mem, 190a46a2cd1SFelix Kuehling uint64_t *offset, uint32_t flags); 191a46a2cd1SFelix Kuehling int amdgpu_amdkfd_gpuvm_free_memory_of_gpu( 192a46a2cd1SFelix Kuehling struct kgd_dev *kgd, struct kgd_mem *mem); 193a46a2cd1SFelix Kuehling int amdgpu_amdkfd_gpuvm_map_memory_to_gpu( 194a46a2cd1SFelix Kuehling struct kgd_dev *kgd, struct kgd_mem *mem, void *vm); 195a46a2cd1SFelix Kuehling int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu( 196a46a2cd1SFelix Kuehling struct kgd_dev *kgd, struct kgd_mem *mem, void *vm); 197a46a2cd1SFelix Kuehling int amdgpu_amdkfd_gpuvm_sync_memory( 198a46a2cd1SFelix Kuehling struct kgd_dev *kgd, struct kgd_mem *mem, bool intr); 199a46a2cd1SFelix Kuehling int amdgpu_amdkfd_gpuvm_map_gtt_bo_to_kernel(struct kgd_dev *kgd, 200a46a2cd1SFelix Kuehling struct kgd_mem *mem, void **kptr, uint64_t *size); 201a46a2cd1SFelix Kuehling int amdgpu_amdkfd_gpuvm_restore_process_bos(void *process_info, 202a46a2cd1SFelix Kuehling struct dma_fence **ef); 203a46a2cd1SFelix Kuehling 204b97dfa27Sshaoyunl int amdgpu_amdkfd_gpuvm_get_vm_fault_info(struct kgd_dev *kgd, 205b97dfa27Sshaoyunl struct kfd_vm_fault_info *info); 206b97dfa27Sshaoyunl 2071dde0ea9SFelix Kuehling int amdgpu_amdkfd_gpuvm_import_dmabuf(struct kgd_dev *kgd, 2081dde0ea9SFelix Kuehling struct dma_buf *dmabuf, 2091dde0ea9SFelix Kuehling uint64_t va, void *vm, 2101dde0ea9SFelix Kuehling struct kgd_mem **mem, uint64_t *size, 2111dde0ea9SFelix Kuehling uint64_t *mmap_offset); 2121dde0ea9SFelix Kuehling 213a46a2cd1SFelix Kuehling void amdgpu_amdkfd_gpuvm_init_mem_limits(void); 214611736d8SFelix Kuehling void amdgpu_amdkfd_unreserve_memory_limit(struct amdgpu_bo *bo); 215a46a2cd1SFelix Kuehling 2162d3d25b6SAmber Lin /* KGD2KFD callbacks */ 217*308176d6SAmber Lin int kgd2kfd_init(void); 2182d3d25b6SAmber Lin void kgd2kfd_exit(void); 2192d3d25b6SAmber Lin struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, struct pci_dev *pdev, 2202d3d25b6SAmber Lin const struct kfd2kgd_calls *f2g); 2212d3d25b6SAmber Lin bool kgd2kfd_device_init(struct kfd_dev *kfd, 2222d3d25b6SAmber Lin const struct kgd2kfd_shared_resources *gpu_resources); 2232d3d25b6SAmber Lin void kgd2kfd_device_exit(struct kfd_dev *kfd); 2242d3d25b6SAmber Lin void kgd2kfd_suspend(struct kfd_dev *kfd); 2252d3d25b6SAmber Lin int kgd2kfd_resume(struct kfd_dev *kfd); 2262d3d25b6SAmber Lin int kgd2kfd_pre_reset(struct kfd_dev *kfd); 2272d3d25b6SAmber Lin int kgd2kfd_post_reset(struct kfd_dev *kfd); 2282d3d25b6SAmber Lin void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry); 2292d3d25b6SAmber Lin int kgd2kfd_quiesce_mm(struct mm_struct *mm); 2302d3d25b6SAmber Lin int kgd2kfd_resume_mm(struct mm_struct *mm); 2312d3d25b6SAmber Lin int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm, 2322d3d25b6SAmber Lin struct dma_fence *fence); 2332d3d25b6SAmber Lin 234130e0371SOded Gabbay #endif /* AMDGPU_AMDKFD_H_INCLUDED */ 235