diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 104 |
1 files changed, 89 insertions, 15 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 85fcfb8c5efd..6546e786bf00 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -254,6 +254,9 @@ struct amdgpu_vm { bool evicting; unsigned int saved_flags; + /* Lock to protect vm_bo add/del/move on all lists of vm */ + spinlock_t status_lock; + /* BOs who needs a validation */ struct list_head evicted; @@ -268,7 +271,6 @@ struct amdgpu_vm { /* regular invalidated BOs, but not yet updated in the PT */ struct list_head invalidated; - spinlock_t invalidated_lock; /* BO mappings freed, but not yet updated in the PT */ struct list_head freed; @@ -276,6 +278,10 @@ struct amdgpu_vm { /* BOs which are invalidated, has been updated in the PTs */ struct list_head done; + /* PT BOs scheduled to free and fill with zero if vm_resv is not hold */ + struct list_head pt_freed; + struct work_struct pt_free_work; + /* contains the page directory */ struct amdgpu_vm_bo_base root; struct dma_fence *last_update; @@ -284,6 +290,10 @@ struct amdgpu_vm { struct drm_sched_entity immediate; struct drm_sched_entity delayed; + /* Last finished delayed update */ + atomic64_t tlb_seq; + struct dma_fence *last_tlb_flush; + /* Last unlocked submission to the scheduler entities */ struct dma_fence *last_unlocked; @@ -317,8 +327,6 @@ struct amdgpu_vm { /* Store positions of group of BOs */ struct ttm_lru_bulk_move lru_bulk_move; - /* mark whether can do the bulk move */ - bool bulk_moveable; /* Flag to indicate if VM is used for compute */ bool is_compute_context; }; @@ -397,18 +405,17 @@ int amdgpu_vm_clear_freed(struct amdgpu_device *adev, struct dma_fence **fence); int amdgpu_vm_handle_moved(struct amdgpu_device *adev, struct amdgpu_vm *vm); -int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev, - struct amdgpu_device *bo_adev, - struct amdgpu_vm *vm, bool immediate, - bool unlocked, struct dma_resv *resv, - uint64_t start, uint64_t last, - uint64_t flags, uint64_t offset, - struct ttm_resource *res, - dma_addr_t *pages_addr, - struct dma_fence **fence, bool *free_table); +void amdgpu_vm_bo_base_init(struct amdgpu_vm_bo_base *base, + struct amdgpu_vm *vm, struct amdgpu_bo *bo); +int amdgpu_vm_update_range(struct amdgpu_device *adev, struct amdgpu_vm *vm, + bool immediate, bool unlocked, bool flush_tlb, + struct dma_resv *resv, uint64_t start, uint64_t last, + uint64_t flags, uint64_t offset, uint64_t vram_base, + struct ttm_resource *res, dma_addr_t *pages_addr, + struct dma_fence **fence); int amdgpu_vm_bo_update(struct amdgpu_device *adev, struct amdgpu_bo_va *bo_va, - bool clear, bool *table_freed); + bool clear); bool amdgpu_vm_evictable(struct amdgpu_bo *bo); void amdgpu_vm_bo_invalidate(struct amdgpu_device *adev, struct amdgpu_bo *bo, bool evicted); @@ -435,7 +442,7 @@ int amdgpu_vm_bo_clear_mappings(struct amdgpu_device *adev, struct amdgpu_bo_va_mapping *amdgpu_vm_bo_lookup_mapping(struct amdgpu_vm *vm, uint64_t addr); void amdgpu_vm_bo_trace_cs(struct amdgpu_vm *vm, struct ww_acquire_ctx *ticket); -void amdgpu_vm_bo_rmv(struct amdgpu_device *adev, +void amdgpu_vm_bo_del(struct amdgpu_device *adev, struct amdgpu_bo_va *bo_va); void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t min_vm_size, uint32_t fragment_size_default, unsigned max_level, @@ -454,12 +461,79 @@ void amdgpu_vm_set_task_info(struct amdgpu_vm *vm); void amdgpu_vm_move_to_lru_tail(struct amdgpu_device *adev, struct amdgpu_vm *vm); -void amdgpu_vm_del_from_lru_notify(struct ttm_buffer_object *bo); void amdgpu_vm_get_memory(struct amdgpu_vm *vm, uint64_t *vram_mem, uint64_t *gtt_mem, uint64_t *cpu_mem); +int amdgpu_vm_pt_clear(struct amdgpu_device *adev, struct amdgpu_vm *vm, + struct amdgpu_bo_vm *vmbo, bool immediate); +int amdgpu_vm_pt_create(struct amdgpu_device *adev, struct amdgpu_vm *vm, + int level, bool immediate, struct amdgpu_bo_vm **vmbo); +void amdgpu_vm_pt_free_root(struct amdgpu_device *adev, struct amdgpu_vm *vm); +bool amdgpu_vm_pt_is_root_clean(struct amdgpu_device *adev, + struct amdgpu_vm *vm); + +int amdgpu_vm_pde_update(struct amdgpu_vm_update_params *params, + struct amdgpu_vm_bo_base *entry); +int amdgpu_vm_ptes_update(struct amdgpu_vm_update_params *params, + uint64_t start, uint64_t end, + uint64_t dst, uint64_t flags); +void amdgpu_vm_pt_free_work(struct work_struct *work); + #if defined(CONFIG_DEBUG_FS) void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, struct seq_file *m); #endif +/** + * amdgpu_vm_tlb_seq - return tlb flush sequence number + * @vm: the amdgpu_vm structure to query + * + * Returns the tlb flush sequence number which indicates that the VM TLBs needs + * to be invalidated whenever the sequence number change. + */ +static inline uint64_t amdgpu_vm_tlb_seq(struct amdgpu_vm *vm) +{ + unsigned long flags; + spinlock_t *lock; + + /* + * Workaround to stop racing between the fence signaling and handling + * the cb. The lock is static after initially setting it up, just make + * sure that the dma_fence structure isn't freed up. + */ + rcu_read_lock(); + lock = vm->last_tlb_flush->lock; + rcu_read_unlock(); + + spin_lock_irqsave(lock, flags); + spin_unlock_irqrestore(lock, flags); + + return atomic64_read(&vm->tlb_seq); +} + +/* + * vm eviction_lock can be taken in MMU notifiers. Make sure no reclaim-FS + * happens while holding this lock anywhere to prevent deadlocks when + * an MMU notifier runs in reclaim-FS context. + */ +static inline void amdgpu_vm_eviction_lock(struct amdgpu_vm *vm) +{ + mutex_lock(&vm->eviction_lock); + vm->saved_flags = memalloc_noreclaim_save(); +} + +static inline bool amdgpu_vm_eviction_trylock(struct amdgpu_vm *vm) +{ + if (mutex_trylock(&vm->eviction_lock)) { + vm->saved_flags = memalloc_noreclaim_save(); + return true; + } + return false; +} + +static inline void amdgpu_vm_eviction_unlock(struct amdgpu_vm *vm) +{ + memalloc_noreclaim_restore(vm->saved_flags); + mutex_unlock(&vm->eviction_lock); +} + #endif |