/* * Copyright 2014 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ /* amdgpu_amdkfd.h defines the private interface between amdgpu and amdkfd. */ #ifndef AMDGPU_AMDKFD_H_INCLUDED #define AMDGPU_AMDKFD_H_INCLUDED #include #include #include #include #include #include #include "amdgpu_sync.h" #include "amdgpu_vm.h" extern uint64_t amdgpu_amdkfd_total_mem_size; struct amdgpu_device; struct kfd_bo_va_list { struct list_head bo_list; struct amdgpu_bo_va *bo_va; void *kgd_dev; bool is_mapped; uint64_t va; uint64_t pte_flags; }; struct kgd_mem { struct mutex lock; struct amdgpu_bo *bo; struct list_head bo_va_list; /* protected by amdkfd_process_info.lock */ struct ttm_validate_buffer validate_list; struct ttm_validate_buffer resv_list; uint32_t domain; unsigned int mapped_to_gpu_memory; uint64_t va; uint32_t alloc_flags; atomic_t invalid; struct amdkfd_process_info *process_info; struct amdgpu_sync sync; bool aql_queue; bool is_imported; }; /* KFD Memory Eviction */ struct amdgpu_amdkfd_fence { struct dma_fence base; struct mm_struct *mm; spinlock_t lock; char timeline_name[TASK_COMM_LEN]; }; struct amdgpu_kfd_dev { struct kfd_dev *dev; uint64_t vram_used; }; enum kgd_engine_type { KGD_ENGINE_PFP = 1, KGD_ENGINE_ME, KGD_ENGINE_CE, KGD_ENGINE_MEC1, KGD_ENGINE_MEC2, KGD_ENGINE_RLC, KGD_ENGINE_SDMA1, KGD_ENGINE_SDMA2, KGD_ENGINE_MAX }; struct amdkfd_process_info { /* List head of all VMs that belong to a KFD process */ struct list_head vm_list_head; /* List head for all KFD BOs that belong to a KFD process. */ struct list_head kfd_bo_list; /* List of userptr BOs that are valid or invalid */ struct list_head userptr_valid_list; struct list_head userptr_inval_list; /* Lock to protect kfd_bo_list */ struct mutex lock; /* Number of VMs */ unsigned int n_vms; /* Eviction Fence */ struct amdgpu_amdkfd_fence *eviction_fence; /* MMU-notifier related fields */ atomic_t evicted_bos; struct delayed_work restore_userptr_work; struct pid *pid; }; int amdgpu_amdkfd_init(void); void amdgpu_amdkfd_fini(void); void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm); int amdgpu_amdkfd_resume_iommu(struct amdgpu_device *adev); int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm); void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev, const void *ih_ring_entry); void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev); void amdgpu_amdkfd_device_init(struct amdgpu_device *adev); void amdgpu_amdkfd_device_fini(struct amdgpu_device *adev); int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum kgd_engine_type engine, uint32_t vmid, uint64_t gpu_addr, uint32_t *ib_cmd, uint32_t ib_len); void amdgpu_amdkfd_set_compute_idle(struct kgd_dev *kgd, bool idle); bool amdgpu_amdkfd_have_atomics_support(struct kgd_dev *kgd); int amdgpu_amdkfd_flush_gpu_tlb_vmid(struct kgd_dev *kgd, uint16_t vmid); int amdgpu_amdkfd_flush_gpu_tlb_pasid(struct kgd_dev *kgd, uint16_t pasid); bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid); int amdgpu_amdkfd_pre_reset(struct amdgpu_device *adev); int amdgpu_amdkfd_post_reset(struct amdgpu_device *adev); void amdgpu_amdkfd_gpu_reset(struct kgd_dev *kgd); int amdgpu_queue_mask_bit_to_set_resource_bit(struct amdgpu_device *adev, int queue_bit); struct amdgpu_amdkfd_fence *amdgpu_amdkfd_fence_create(u64 context, struct mm_struct *mm); #if IS_ENABLED(CONFIG_HSA_AMD) bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm); struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f); int amdgpu_amdkfd_remove_fence_on_pt_pd_bos(struct amdgpu_bo *bo); int amdgpu_amdkfd_evict_userptr(struct kgd_mem *mem, struct mm_struct *mm); #else static inline bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm) { return false; } static inline struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f) { return NULL; } static inline int amdgpu_amdkfd_remove_fence_on_pt_pd_bos(struct amdgpu_bo *bo) { return 0; } static inline int amdgpu_amdkfd_evict_userptr(struct kgd_mem *mem, struct mm_struct *mm) { return 0; } #endif /* Shared API */ int amdgpu_amdkfd_alloc_gtt_mem(struct kgd_dev *kgd, size_t size, void **mem_obj, uint64_t *gpu_addr, void **cpu_ptr, bool mqd_gfx9); void amdgpu_amdkfd_free_gtt_mem(struct kgd_dev *kgd, void *mem_obj); int amdgpu_amdkfd_alloc_gws(struct kgd_dev *kgd, size_t size, void **mem_obj); void amdgpu_amdkfd_free_gws(struct kgd_dev *kgd, void *mem_obj); int amdgpu_amdkfd_add_gws_to_process(void *info, void *gws, struct kgd_mem **mem); int amdgpu_amdkfd_remove_gws_from_process(void *info, void *mem); uint32_t amdgpu_amdkfd_get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type); void amdgpu_amdkfd_get_local_mem_info(struct kgd_dev *kgd, struct kfd_local_mem_info *mem_info); uint64_t amdgpu_amdkfd_get_gpu_clock_counter(struct kgd_dev *kgd); uint32_t amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct kgd_dev *kgd); void amdgpu_amdkfd_get_cu_info(struct kgd_dev *kgd, struct kfd_cu_info *cu_info); int amdgpu_amdkfd_get_dmabuf_info(struct kgd_dev *kgd, int dma_buf_fd, struct kgd_dev **dmabuf_kgd, uint64_t *bo_size, void *metadata_buffer, size_t buffer_size, uint32_t *metadata_size, uint32_t *flags); uint64_t amdgpu_amdkfd_get_vram_usage(struct kgd_dev *kgd); uint64_t amdgpu_amdkfd_get_hive_id(struct kgd_dev *kgd); uint64_t amdgpu_amdkfd_get_unique_id(struct kgd_dev *kgd); uint64_t amdgpu_amdkfd_get_mmio_remap_phys_addr(struct kgd_dev *kgd); uint32_t amdgpu_amdkfd_get_num_gws(struct kgd_dev *kgd); uint32_t amdgpu_amdkfd_get_asic_rev_id(struct kgd_dev *kgd); int amdgpu_amdkfd_get_noretry(struct kgd_dev *kgd); uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct kgd_dev *dst, struct kgd_dev *src); /* Read user wptr from a specified user address space with page fault * disabled. The memory must be pinned and mapped to the hardware when * this is called in hqd_load functions, so it should never fault in * the first place. This resolves a circular lock dependency involving * four locks, including the DQM lock and mmap_lock. */ #define read_user_wptr(mmptr, wptr, dst) \ ({ \ bool valid = false; \ if ((mmptr) && (wptr)) { \ pagefault_disable(); \ if ((mmptr) == current->mm) { \ valid = !get_user((dst), (wptr)); \ } else if (current->flags & PF_KTHREAD) { \ kthread_use_mm(mmptr); \ valid = !get_user((dst), (wptr)); \ kthread_unuse_mm(mmptr); \ } \ pagefault_enable(); \ } \ valid; \ }) /* GPUVM API */ int amdgpu_amdkfd_gpuvm_create_process_vm(struct kgd_dev *kgd, u32 pasid, void **vm, void **process_info, struct dma_fence **ef); int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct kgd_dev *kgd, struct file *filp, u32 pasid, void **vm, void **process_info, struct dma_fence **ef); void amdgpu_amdkfd_gpuvm_destroy_process_vm(struct kgd_dev *kgd, void *vm); void amdgpu_amdkfd_gpuvm_release_process_vm(struct kgd_dev *kgd, void *vm); uint64_t amdgpu_amdkfd_gpuvm_get_process_page_dir(void *vm); int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu( struct kgd_dev *kgd, uint64_t va, uint64_t size, void *vm, struct kgd_mem **mem, uint64_t *offset, uint32_t flags); int amdgpu_amdkfd_gpuvm_free_memory_of_gpu( struct kgd_dev *kgd, struct kgd_mem *mem, uint64_t *size); int amdgpu_amdkfd_gpuvm_map_memory_to_gpu( struct kgd_dev *kgd, struct kgd_mem *mem, void *vm); int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu( struct kgd_dev *kgd, struct kgd_mem *mem, void *vm); int amdgpu_amdkfd_gpuvm_sync_memory( struct kgd_dev *kgd, struct kgd_mem *mem, bool intr); int amdgpu_amdkfd_gpuvm_map_gtt_bo_to_kernel(struct kgd_dev *kgd, struct kgd_mem *mem, void **kptr, uint64_t *size); int amdgpu_amdkfd_gpuvm_restore_process_bos(void *process_info, struct dma_fence **ef); int amdgpu_amdkfd_gpuvm_get_vm_fault_info(struct kgd_dev *kgd, struct kfd_vm_fault_info *info); int amdgpu_amdkfd_gpuvm_import_dmabuf(struct kgd_dev *kgd, struct dma_buf *dmabuf, uint64_t va, void *vm, struct kgd_mem **mem, uint64_t *size, uint64_t *mmap_offset); int amdgpu_amdkfd_get_tile_config(struct kgd_dev *kgd, struct tile_config *config); #if IS_ENABLED(CONFIG_HSA_AMD) void amdgpu_amdkfd_gpuvm_init_mem_limits(void); void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev, struct amdgpu_vm *vm); void amdgpu_amdkfd_unreserve_memory_limit(struct amdgpu_bo *bo); #else static inline void amdgpu_amdkfd_gpuvm_init_mem_limits(void) { } static inline void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev, struct amdgpu_vm *vm) { } static inline void amdgpu_amdkfd_unreserve_memory_limit(struct amdgpu_bo *bo) { } #endif /* KGD2KFD callbacks */ int kgd2kfd_quiesce_mm(struct mm_struct *mm); int kgd2kfd_resume_mm(struct mm_struct *mm); int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm, struct dma_fence *fence); #if IS_ENABLED(CONFIG_HSA_AMD) int kgd2kfd_init(void); void kgd2kfd_exit(void); struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, struct pci_dev *pdev, unsigned int asic_type, bool vf); bool kgd2kfd_device_init(struct kfd_dev *kfd, struct drm_device *ddev, const struct kgd2kfd_shared_resources *gpu_resources); void kgd2kfd_device_exit(struct kfd_dev *kfd); void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm); int kgd2kfd_resume_iommu(struct kfd_dev *kfd); int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm); int kgd2kfd_pre_reset(struct kfd_dev *kfd); int kgd2kfd_post_reset(struct kfd_dev *kfd); void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry); void kgd2kfd_set_sram_ecc_flag(struct kfd_dev *kfd); void kgd2kfd_smi_event_throttle(struct kfd_dev *kfd, uint32_t throttle_bitmask); #else static inline int kgd2kfd_init(void) { return -ENOENT; } static inline void kgd2kfd_exit(void) { } static inline struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, struct pci_dev *pdev, unsigned int asic_type, bool vf) { return NULL; } static inline bool kgd2kfd_device_init(struct kfd_dev *kfd, struct drm_device *ddev, const struct kgd2kfd_shared_resources *gpu_resources) { return false; } static inline void kgd2kfd_device_exit(struct kfd_dev *kfd) { } static inline void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm) { } static int __maybe_unused kgd2kfd_resume_iommu(struct kfd_dev *kfd) { return 0; } static inline int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm) { return 0; } static inline int kgd2kfd_pre_reset(struct kfd_dev *kfd) { return 0; } static inline int kgd2kfd_post_reset(struct kfd_dev *kfd) { return 0; } static inline void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry) { } static inline void kgd2kfd_set_sram_ecc_flag(struct kfd_dev *kfd) { } static inline void kgd2kfd_smi_event_throttle(struct kfd_dev *kfd, uint32_t throttle_bitmask) { } #endif #endif /* AMDGPU_AMDKFD_H_INCLUDED */