198932149SChris Wilson /* 298932149SChris Wilson * SPDX-License-Identifier: MIT 398932149SChris Wilson * 498932149SChris Wilson * Copyright © 2016 Intel Corporation 598932149SChris Wilson */ 698932149SChris Wilson 798932149SChris Wilson #ifndef __I915_GEM_OBJECT_H__ 898932149SChris Wilson #define __I915_GEM_OBJECT_H__ 998932149SChris Wilson 1098932149SChris Wilson #include <drm/drm_gem.h> 1198932149SChris Wilson #include <drm/drm_file.h> 1298932149SChris Wilson #include <drm/drm_device.h> 1398932149SChris Wilson 14da42104fSChris Wilson #include "display/intel_frontbuffer.h" 1598932149SChris Wilson #include "i915_gem_object_types.h" 16f0e4a063SChris Wilson #include "i915_gem_gtt.h" 172c86e55dSMatthew Auld #include "i915_vma_types.h" 18f0e4a063SChris Wilson 198475355fSChris Wilson void i915_gem_init__objects(struct drm_i915_private *i915); 208475355fSChris Wilson 2198932149SChris Wilson struct drm_i915_gem_object *i915_gem_object_alloc(void); 2298932149SChris Wilson void i915_gem_object_free(struct drm_i915_gem_object *obj); 2398932149SChris Wilson 248475355fSChris Wilson void i915_gem_object_init(struct drm_i915_gem_object *obj, 257867d709SChris Wilson const struct drm_i915_gem_object_ops *ops, 267867d709SChris Wilson struct lock_class_key *key); 278475355fSChris Wilson struct drm_i915_gem_object * 28da1184cdSMatthew Auld i915_gem_object_create_shmem(struct drm_i915_private *i915, 29da1184cdSMatthew Auld resource_size_t size); 308475355fSChris Wilson struct drm_i915_gem_object * 318475355fSChris Wilson i915_gem_object_create_shmem_from_data(struct drm_i915_private *i915, 32da1184cdSMatthew Auld const void *data, resource_size_t size); 338475355fSChris Wilson 348475355fSChris Wilson extern const struct drm_i915_gem_object_ops i915_gem_shmem_ops; 358475355fSChris Wilson void __i915_gem_object_release_shmem(struct drm_i915_gem_object *obj, 368475355fSChris Wilson struct sg_table *pages, 378475355fSChris Wilson bool needs_clflush); 388475355fSChris Wilson 39f033428dSChris Wilson int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj, int align); 40f033428dSChris Wilson 418475355fSChris Wilson void i915_gem_flush_free_objects(struct drm_i915_private *i915); 428475355fSChris Wilson 43f033428dSChris Wilson struct sg_table * 44f033428dSChris Wilson __i915_gem_object_unset_pages(struct drm_i915_gem_object *obj); 45f033428dSChris Wilson void i915_gem_object_truncate(struct drm_i915_gem_object *obj); 46f033428dSChris Wilson 4798932149SChris Wilson /** 4898932149SChris Wilson * i915_gem_object_lookup_rcu - look up a temporary GEM object from its handle 4998932149SChris Wilson * @filp: DRM file private date 5098932149SChris Wilson * @handle: userspace handle 5198932149SChris Wilson * 5298932149SChris Wilson * Returns: 5398932149SChris Wilson * 5498932149SChris Wilson * A pointer to the object named by the handle if such exists on @filp, NULL 5598932149SChris Wilson * otherwise. This object is only valid whilst under the RCU read lock, and 5698932149SChris Wilson * note carefully the object may be in the process of being destroyed. 5798932149SChris Wilson */ 5898932149SChris Wilson static inline struct drm_i915_gem_object * 5998932149SChris Wilson i915_gem_object_lookup_rcu(struct drm_file *file, u32 handle) 6098932149SChris Wilson { 6198932149SChris Wilson #ifdef CONFIG_LOCKDEP 6298932149SChris Wilson WARN_ON(debug_locks && !lock_is_held(&rcu_lock_map)); 6398932149SChris Wilson #endif 6498932149SChris Wilson return idr_find(&file->object_idr, handle); 6598932149SChris Wilson } 6698932149SChris Wilson 6798932149SChris Wilson static inline struct drm_i915_gem_object * 68280d14a6SChris Wilson i915_gem_object_get_rcu(struct drm_i915_gem_object *obj) 69280d14a6SChris Wilson { 70280d14a6SChris Wilson if (obj && !kref_get_unless_zero(&obj->base.refcount)) 71280d14a6SChris Wilson obj = NULL; 72280d14a6SChris Wilson 73280d14a6SChris Wilson return obj; 74280d14a6SChris Wilson } 75280d14a6SChris Wilson 76280d14a6SChris Wilson static inline struct drm_i915_gem_object * 7798932149SChris Wilson i915_gem_object_lookup(struct drm_file *file, u32 handle) 7898932149SChris Wilson { 7998932149SChris Wilson struct drm_i915_gem_object *obj; 8098932149SChris Wilson 8198932149SChris Wilson rcu_read_lock(); 8298932149SChris Wilson obj = i915_gem_object_lookup_rcu(file, handle); 83280d14a6SChris Wilson obj = i915_gem_object_get_rcu(obj); 8498932149SChris Wilson rcu_read_unlock(); 8598932149SChris Wilson 8698932149SChris Wilson return obj; 8798932149SChris Wilson } 8898932149SChris Wilson 8998932149SChris Wilson __deprecated 90b5893ffcSJanusz Krzysztofik struct drm_gem_object * 9198932149SChris Wilson drm_gem_object_lookup(struct drm_file *file, u32 handle); 9298932149SChris Wilson 9398932149SChris Wilson __attribute__((nonnull)) 9498932149SChris Wilson static inline struct drm_i915_gem_object * 9598932149SChris Wilson i915_gem_object_get(struct drm_i915_gem_object *obj) 9698932149SChris Wilson { 9798932149SChris Wilson drm_gem_object_get(&obj->base); 9898932149SChris Wilson return obj; 9998932149SChris Wilson } 10098932149SChris Wilson 10198932149SChris Wilson __attribute__((nonnull)) 10298932149SChris Wilson static inline void 10398932149SChris Wilson i915_gem_object_put(struct drm_i915_gem_object *obj) 10498932149SChris Wilson { 10598932149SChris Wilson __drm_gem_object_put(&obj->base); 10698932149SChris Wilson } 10798932149SChris Wilson 10852791eeeSChristian König #define assert_object_held(obj) dma_resv_assert_held((obj)->base.resv) 1096951e589SChris Wilson 11080f0b679SMaarten Lankhorst static inline int __i915_gem_object_lock(struct drm_i915_gem_object *obj, 11180f0b679SMaarten Lankhorst struct i915_gem_ww_ctx *ww, 11280f0b679SMaarten Lankhorst bool intr) 11398932149SChris Wilson { 11480f0b679SMaarten Lankhorst int ret; 11580f0b679SMaarten Lankhorst 11680f0b679SMaarten Lankhorst if (intr) 11780f0b679SMaarten Lankhorst ret = dma_resv_lock_interruptible(obj->base.resv, ww ? &ww->ctx : NULL); 11880f0b679SMaarten Lankhorst else 11980f0b679SMaarten Lankhorst ret = dma_resv_lock(obj->base.resv, ww ? &ww->ctx : NULL); 12080f0b679SMaarten Lankhorst 12180f0b679SMaarten Lankhorst if (!ret && ww) 12280f0b679SMaarten Lankhorst list_add_tail(&obj->obj_link, &ww->obj_list); 12380f0b679SMaarten Lankhorst if (ret == -EALREADY) 12480f0b679SMaarten Lankhorst ret = 0; 12580f0b679SMaarten Lankhorst 12680f0b679SMaarten Lankhorst if (ret == -EDEADLK) 12780f0b679SMaarten Lankhorst ww->contended = obj; 12880f0b679SMaarten Lankhorst 12980f0b679SMaarten Lankhorst return ret; 13080f0b679SMaarten Lankhorst } 13180f0b679SMaarten Lankhorst 13280f0b679SMaarten Lankhorst static inline int i915_gem_object_lock(struct drm_i915_gem_object *obj, 13380f0b679SMaarten Lankhorst struct i915_gem_ww_ctx *ww) 13480f0b679SMaarten Lankhorst { 13580f0b679SMaarten Lankhorst return __i915_gem_object_lock(obj, ww, ww && ww->intr); 13680f0b679SMaarten Lankhorst } 13780f0b679SMaarten Lankhorst 13880f0b679SMaarten Lankhorst static inline int i915_gem_object_lock_interruptible(struct drm_i915_gem_object *obj, 13980f0b679SMaarten Lankhorst struct i915_gem_ww_ctx *ww) 14080f0b679SMaarten Lankhorst { 14180f0b679SMaarten Lankhorst WARN_ON(ww && !ww->intr); 14280f0b679SMaarten Lankhorst return __i915_gem_object_lock(obj, ww, true); 14398932149SChris Wilson } 14498932149SChris Wilson 1452850748eSChris Wilson static inline bool i915_gem_object_trylock(struct drm_i915_gem_object *obj) 1462850748eSChris Wilson { 1472850748eSChris Wilson return dma_resv_trylock(obj->base.resv); 1482850748eSChris Wilson } 1492850748eSChris Wilson 15098932149SChris Wilson static inline void i915_gem_object_unlock(struct drm_i915_gem_object *obj) 15198932149SChris Wilson { 15252791eeeSChristian König dma_resv_unlock(obj->base.resv); 15398932149SChris Wilson } 15498932149SChris Wilson 1556951e589SChris Wilson struct dma_fence * 1566951e589SChris Wilson i915_gem_object_lock_fence(struct drm_i915_gem_object *obj); 1576951e589SChris Wilson void i915_gem_object_unlock_fence(struct drm_i915_gem_object *obj, 1586951e589SChris Wilson struct dma_fence *fence); 1596951e589SChris Wilson 16098932149SChris Wilson static inline void 16198932149SChris Wilson i915_gem_object_set_readonly(struct drm_i915_gem_object *obj) 16298932149SChris Wilson { 163cc662126SAbdiel Janulgue obj->flags |= I915_BO_READONLY; 16498932149SChris Wilson } 16598932149SChris Wilson 16698932149SChris Wilson static inline bool 16798932149SChris Wilson i915_gem_object_is_readonly(const struct drm_i915_gem_object *obj) 16898932149SChris Wilson { 169cc662126SAbdiel Janulgue return obj->flags & I915_BO_READONLY; 17098932149SChris Wilson } 17198932149SChris Wilson 17298932149SChris Wilson static inline bool 1732f0b97caSMatthew Auld i915_gem_object_is_contiguous(const struct drm_i915_gem_object *obj) 1742f0b97caSMatthew Auld { 1752f0b97caSMatthew Auld return obj->flags & I915_BO_ALLOC_CONTIGUOUS; 1762f0b97caSMatthew Auld } 1772f0b97caSMatthew Auld 1782f0b97caSMatthew Auld static inline bool 1797c98501aSMatthew Auld i915_gem_object_is_volatile(const struct drm_i915_gem_object *obj) 1807c98501aSMatthew Auld { 1817c98501aSMatthew Auld return obj->flags & I915_BO_ALLOC_VOLATILE; 1827c98501aSMatthew Auld } 1837c98501aSMatthew Auld 1847c98501aSMatthew Auld static inline void 1857c98501aSMatthew Auld i915_gem_object_set_volatile(struct drm_i915_gem_object *obj) 1867c98501aSMatthew Auld { 1877c98501aSMatthew Auld obj->flags |= I915_BO_ALLOC_VOLATILE; 1887c98501aSMatthew Auld } 1897c98501aSMatthew Auld 1907c98501aSMatthew Auld static inline bool 1913cbad5d7SChris Wilson i915_gem_object_type_has(const struct drm_i915_gem_object *obj, 1923cbad5d7SChris Wilson unsigned long flags) 1933cbad5d7SChris Wilson { 1943cbad5d7SChris Wilson return obj->ops->flags & flags; 1953cbad5d7SChris Wilson } 1963cbad5d7SChris Wilson 1973cbad5d7SChris Wilson static inline bool 19898932149SChris Wilson i915_gem_object_has_struct_page(const struct drm_i915_gem_object *obj) 19998932149SChris Wilson { 2003cbad5d7SChris Wilson return i915_gem_object_type_has(obj, I915_GEM_OBJECT_HAS_STRUCT_PAGE); 20198932149SChris Wilson } 20298932149SChris Wilson 20398932149SChris Wilson static inline bool 20498932149SChris Wilson i915_gem_object_is_shrinkable(const struct drm_i915_gem_object *obj) 20598932149SChris Wilson { 2063cbad5d7SChris Wilson return i915_gem_object_type_has(obj, I915_GEM_OBJECT_IS_SHRINKABLE); 20798932149SChris Wilson } 20898932149SChris Wilson 20998932149SChris Wilson static inline bool 21098932149SChris Wilson i915_gem_object_is_proxy(const struct drm_i915_gem_object *obj) 21198932149SChris Wilson { 2123cbad5d7SChris Wilson return i915_gem_object_type_has(obj, I915_GEM_OBJECT_IS_PROXY); 21398932149SChris Wilson } 21498932149SChris Wilson 21598932149SChris Wilson static inline bool 216f6c26b55SJanusz Krzysztofik i915_gem_object_never_mmap(const struct drm_i915_gem_object *obj) 217a4311745SChris Wilson { 218f6c26b55SJanusz Krzysztofik return i915_gem_object_type_has(obj, I915_GEM_OBJECT_NO_MMAP); 219a4311745SChris Wilson } 220a4311745SChris Wilson 221a4311745SChris Wilson static inline bool 22298932149SChris Wilson i915_gem_object_needs_async_cancel(const struct drm_i915_gem_object *obj) 22398932149SChris Wilson { 2243cbad5d7SChris Wilson return i915_gem_object_type_has(obj, I915_GEM_OBJECT_ASYNC_CANCEL); 22598932149SChris Wilson } 22698932149SChris Wilson 22798932149SChris Wilson static inline bool 22898932149SChris Wilson i915_gem_object_is_framebuffer(const struct drm_i915_gem_object *obj) 22998932149SChris Wilson { 2308e7cb179SChris Wilson return READ_ONCE(obj->frontbuffer); 23198932149SChris Wilson } 23298932149SChris Wilson 23398932149SChris Wilson static inline unsigned int 23498932149SChris Wilson i915_gem_object_get_tiling(const struct drm_i915_gem_object *obj) 23598932149SChris Wilson { 23698932149SChris Wilson return obj->tiling_and_stride & TILING_MASK; 23798932149SChris Wilson } 23898932149SChris Wilson 23998932149SChris Wilson static inline bool 24098932149SChris Wilson i915_gem_object_is_tiled(const struct drm_i915_gem_object *obj) 24198932149SChris Wilson { 24298932149SChris Wilson return i915_gem_object_get_tiling(obj) != I915_TILING_NONE; 24398932149SChris Wilson } 24498932149SChris Wilson 24598932149SChris Wilson static inline unsigned int 24698932149SChris Wilson i915_gem_object_get_stride(const struct drm_i915_gem_object *obj) 24798932149SChris Wilson { 24898932149SChris Wilson return obj->tiling_and_stride & STRIDE_MASK; 24998932149SChris Wilson } 25098932149SChris Wilson 25198932149SChris Wilson static inline unsigned int 25298932149SChris Wilson i915_gem_tile_height(unsigned int tiling) 25398932149SChris Wilson { 25498932149SChris Wilson GEM_BUG_ON(!tiling); 25598932149SChris Wilson return tiling == I915_TILING_Y ? 32 : 8; 25698932149SChris Wilson } 25798932149SChris Wilson 25898932149SChris Wilson static inline unsigned int 25998932149SChris Wilson i915_gem_object_get_tile_height(const struct drm_i915_gem_object *obj) 26098932149SChris Wilson { 26198932149SChris Wilson return i915_gem_tile_height(i915_gem_object_get_tiling(obj)); 26298932149SChris Wilson } 26398932149SChris Wilson 26498932149SChris Wilson static inline unsigned int 26598932149SChris Wilson i915_gem_object_get_tile_row_size(const struct drm_i915_gem_object *obj) 26698932149SChris Wilson { 26798932149SChris Wilson return (i915_gem_object_get_stride(obj) * 26898932149SChris Wilson i915_gem_object_get_tile_height(obj)); 26998932149SChris Wilson } 27098932149SChris Wilson 27198932149SChris Wilson int i915_gem_object_set_tiling(struct drm_i915_gem_object *obj, 27298932149SChris Wilson unsigned int tiling, unsigned int stride); 27398932149SChris Wilson 27498932149SChris Wilson struct scatterlist * 275934941edSTvrtko Ursulin __i915_gem_object_get_sg(struct drm_i915_gem_object *obj, 276934941edSTvrtko Ursulin struct i915_gem_object_page_iter *iter, 277934941edSTvrtko Ursulin unsigned int n, 278934941edSTvrtko Ursulin unsigned int *offset); 279934941edSTvrtko Ursulin 280934941edSTvrtko Ursulin static inline struct scatterlist * 28198932149SChris Wilson i915_gem_object_get_sg(struct drm_i915_gem_object *obj, 282934941edSTvrtko Ursulin unsigned int n, 283934941edSTvrtko Ursulin unsigned int *offset) 284934941edSTvrtko Ursulin { 285934941edSTvrtko Ursulin return __i915_gem_object_get_sg(obj, &obj->mm.get_page, n, offset); 286934941edSTvrtko Ursulin } 287934941edSTvrtko Ursulin 288934941edSTvrtko Ursulin static inline struct scatterlist * 289934941edSTvrtko Ursulin i915_gem_object_get_sg_dma(struct drm_i915_gem_object *obj, 290934941edSTvrtko Ursulin unsigned int n, 291934941edSTvrtko Ursulin unsigned int *offset) 292934941edSTvrtko Ursulin { 293934941edSTvrtko Ursulin return __i915_gem_object_get_sg(obj, &obj->mm.get_dma_page, n, offset); 294934941edSTvrtko Ursulin } 29598932149SChris Wilson 29698932149SChris Wilson struct page * 29798932149SChris Wilson i915_gem_object_get_page(struct drm_i915_gem_object *obj, 29898932149SChris Wilson unsigned int n); 29998932149SChris Wilson 3004993a8a3SDave Airlie struct page * 3014993a8a3SDave Airlie i915_gem_object_get_dirty_page(struct drm_i915_gem_object *obj, 3024993a8a3SDave Airlie unsigned int n); 3034993a8a3SDave Airlie 30498932149SChris Wilson dma_addr_t 30598932149SChris Wilson i915_gem_object_get_dma_address_len(struct drm_i915_gem_object *obj, 30698932149SChris Wilson unsigned long n, 30798932149SChris Wilson unsigned int *len); 30898932149SChris Wilson 30998932149SChris Wilson dma_addr_t 31098932149SChris Wilson i915_gem_object_get_dma_address(struct drm_i915_gem_object *obj, 31198932149SChris Wilson unsigned long n); 31298932149SChris Wilson 31398932149SChris Wilson void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj, 31498932149SChris Wilson struct sg_table *pages, 31598932149SChris Wilson unsigned int sg_page_sizes); 316f033428dSChris Wilson 317f033428dSChris Wilson int ____i915_gem_object_get_pages(struct drm_i915_gem_object *obj); 31898932149SChris Wilson int __i915_gem_object_get_pages(struct drm_i915_gem_object *obj); 31998932149SChris Wilson 32074ceefd1SDaniel Vetter enum i915_mm_subclass { /* lockdep subclass for obj->mm.lock/struct_mutex */ 32174ceefd1SDaniel Vetter I915_MM_NORMAL = 0, 32274ceefd1SDaniel Vetter /* 32374ceefd1SDaniel Vetter * Only used by struct_mutex, when called "recursively" from 32474ceefd1SDaniel Vetter * direct-reclaim-esque. Safe because there is only every one 32574ceefd1SDaniel Vetter * struct_mutex in the entire system. 32674ceefd1SDaniel Vetter */ 32774ceefd1SDaniel Vetter I915_MM_SHRINKER = 1, 32874ceefd1SDaniel Vetter /* 32974ceefd1SDaniel Vetter * Used for obj->mm.lock when allocating pages. Safe because the object 33074ceefd1SDaniel Vetter * isn't yet on any LRU, and therefore the shrinker can't deadlock on 33174ceefd1SDaniel Vetter * it. As soon as the object has pages, obj->mm.lock nests within 33274ceefd1SDaniel Vetter * fs_reclaim. 33374ceefd1SDaniel Vetter */ 33474ceefd1SDaniel Vetter I915_MM_GET_PAGES = 1, 33574ceefd1SDaniel Vetter }; 33674ceefd1SDaniel Vetter 33798932149SChris Wilson static inline int __must_check 33898932149SChris Wilson i915_gem_object_pin_pages(struct drm_i915_gem_object *obj) 33998932149SChris Wilson { 34074ceefd1SDaniel Vetter might_lock_nested(&obj->mm.lock, I915_MM_GET_PAGES); 34198932149SChris Wilson 34298932149SChris Wilson if (atomic_inc_not_zero(&obj->mm.pages_pin_count)) 34398932149SChris Wilson return 0; 34498932149SChris Wilson 34598932149SChris Wilson return __i915_gem_object_get_pages(obj); 34698932149SChris Wilson } 34798932149SChris Wilson 34898932149SChris Wilson static inline bool 34998932149SChris Wilson i915_gem_object_has_pages(struct drm_i915_gem_object *obj) 35098932149SChris Wilson { 35198932149SChris Wilson return !IS_ERR_OR_NULL(READ_ONCE(obj->mm.pages)); 35298932149SChris Wilson } 35398932149SChris Wilson 35498932149SChris Wilson static inline void 35598932149SChris Wilson __i915_gem_object_pin_pages(struct drm_i915_gem_object *obj) 35698932149SChris Wilson { 35798932149SChris Wilson GEM_BUG_ON(!i915_gem_object_has_pages(obj)); 35898932149SChris Wilson 35998932149SChris Wilson atomic_inc(&obj->mm.pages_pin_count); 36098932149SChris Wilson } 36198932149SChris Wilson 36298932149SChris Wilson static inline bool 36398932149SChris Wilson i915_gem_object_has_pinned_pages(struct drm_i915_gem_object *obj) 36498932149SChris Wilson { 36598932149SChris Wilson return atomic_read(&obj->mm.pages_pin_count); 36698932149SChris Wilson } 36798932149SChris Wilson 36898932149SChris Wilson static inline void 36998932149SChris Wilson __i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj) 37098932149SChris Wilson { 37198932149SChris Wilson GEM_BUG_ON(!i915_gem_object_has_pages(obj)); 37298932149SChris Wilson GEM_BUG_ON(!i915_gem_object_has_pinned_pages(obj)); 37398932149SChris Wilson 37498932149SChris Wilson atomic_dec(&obj->mm.pages_pin_count); 37598932149SChris Wilson } 37698932149SChris Wilson 37798932149SChris Wilson static inline void 37898932149SChris Wilson i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj) 37998932149SChris Wilson { 38098932149SChris Wilson __i915_gem_object_unpin_pages(obj); 38198932149SChris Wilson } 38298932149SChris Wilson 383f86dbacbSDaniel Vetter int __i915_gem_object_put_pages(struct drm_i915_gem_object *obj); 384f033428dSChris Wilson void i915_gem_object_truncate(struct drm_i915_gem_object *obj); 385f033428dSChris Wilson void i915_gem_object_writeback(struct drm_i915_gem_object *obj); 38698932149SChris Wilson 38798932149SChris Wilson /** 38898932149SChris Wilson * i915_gem_object_pin_map - return a contiguous mapping of the entire object 38998932149SChris Wilson * @obj: the object to map into kernel address space 39098932149SChris Wilson * @type: the type of mapping, used to select pgprot_t 39198932149SChris Wilson * 39298932149SChris Wilson * Calls i915_gem_object_pin_pages() to prevent reaping of the object's 39398932149SChris Wilson * pages and then returns a contiguous mapping of the backing storage into 39498932149SChris Wilson * the kernel address space. Based on the @type of mapping, the PTE will be 39598932149SChris Wilson * set to either WriteBack or WriteCombine (via pgprot_t). 39698932149SChris Wilson * 39798932149SChris Wilson * The caller is responsible for calling i915_gem_object_unpin_map() when the 39898932149SChris Wilson * mapping is no longer required. 39998932149SChris Wilson * 40098932149SChris Wilson * Returns the pointer through which to access the mapped object, or an 40198932149SChris Wilson * ERR_PTR() on error. 40298932149SChris Wilson */ 40398932149SChris Wilson void *__must_check i915_gem_object_pin_map(struct drm_i915_gem_object *obj, 40498932149SChris Wilson enum i915_map_type type); 40598932149SChris Wilson 40698932149SChris Wilson void __i915_gem_object_flush_map(struct drm_i915_gem_object *obj, 40798932149SChris Wilson unsigned long offset, 40898932149SChris Wilson unsigned long size); 40998932149SChris Wilson static inline void i915_gem_object_flush_map(struct drm_i915_gem_object *obj) 41098932149SChris Wilson { 41198932149SChris Wilson __i915_gem_object_flush_map(obj, 0, obj->base.size); 41298932149SChris Wilson } 41398932149SChris Wilson 41498932149SChris Wilson /** 41598932149SChris Wilson * i915_gem_object_unpin_map - releases an earlier mapping 41698932149SChris Wilson * @obj: the object to unmap 41798932149SChris Wilson * 41898932149SChris Wilson * After pinning the object and mapping its pages, once you are finished 41998932149SChris Wilson * with your access, call i915_gem_object_unpin_map() to release the pin 42098932149SChris Wilson * upon the mapping. Once the pin count reaches zero, that mapping may be 42198932149SChris Wilson * removed. 42298932149SChris Wilson */ 42398932149SChris Wilson static inline void i915_gem_object_unpin_map(struct drm_i915_gem_object *obj) 42498932149SChris Wilson { 42598932149SChris Wilson i915_gem_object_unpin_pages(obj); 42698932149SChris Wilson } 42798932149SChris Wilson 42889d19b2bSChris Wilson void __i915_gem_object_release_map(struct drm_i915_gem_object *obj); 42989d19b2bSChris Wilson 430f0e4a063SChris Wilson int i915_gem_object_prepare_read(struct drm_i915_gem_object *obj, 431f0e4a063SChris Wilson unsigned int *needs_clflush); 432f0e4a063SChris Wilson int i915_gem_object_prepare_write(struct drm_i915_gem_object *obj, 433f0e4a063SChris Wilson unsigned int *needs_clflush); 434f0e4a063SChris Wilson #define CLFLUSH_BEFORE BIT(0) 435f0e4a063SChris Wilson #define CLFLUSH_AFTER BIT(1) 436f0e4a063SChris Wilson #define CLFLUSH_FLAGS (CLFLUSH_BEFORE | CLFLUSH_AFTER) 437f0e4a063SChris Wilson 438f0e4a063SChris Wilson static inline void 439f0e4a063SChris Wilson i915_gem_object_finish_access(struct drm_i915_gem_object *obj) 440f0e4a063SChris Wilson { 441f0e4a063SChris Wilson i915_gem_object_unpin_pages(obj); 442f0e4a063SChris Wilson } 443f0e4a063SChris Wilson 44498932149SChris Wilson static inline struct intel_engine_cs * 44598932149SChris Wilson i915_gem_object_last_write_engine(struct drm_i915_gem_object *obj) 44698932149SChris Wilson { 44798932149SChris Wilson struct intel_engine_cs *engine = NULL; 44898932149SChris Wilson struct dma_fence *fence; 44998932149SChris Wilson 45098932149SChris Wilson rcu_read_lock(); 45152791eeeSChristian König fence = dma_resv_get_excl_rcu(obj->base.resv); 45298932149SChris Wilson rcu_read_unlock(); 45398932149SChris Wilson 45498932149SChris Wilson if (fence && dma_fence_is_i915(fence) && !dma_fence_is_signaled(fence)) 45598932149SChris Wilson engine = to_request(fence)->engine; 45698932149SChris Wilson dma_fence_put(fence); 45798932149SChris Wilson 45898932149SChris Wilson return engine; 45998932149SChris Wilson } 46098932149SChris Wilson 46198932149SChris Wilson void i915_gem_object_set_cache_coherency(struct drm_i915_gem_object *obj, 46298932149SChris Wilson unsigned int cache_level); 46398932149SChris Wilson void i915_gem_object_flush_if_display(struct drm_i915_gem_object *obj); 464c1793ba8SMaarten Lankhorst void i915_gem_object_flush_if_display_locked(struct drm_i915_gem_object *obj); 46598932149SChris Wilson 466f0e4a063SChris Wilson int __must_check 467f0e4a063SChris Wilson i915_gem_object_set_to_wc_domain(struct drm_i915_gem_object *obj, bool write); 468f0e4a063SChris Wilson int __must_check 469f0e4a063SChris Wilson i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, bool write); 470f0e4a063SChris Wilson int __must_check 471f0e4a063SChris Wilson i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write); 472f0e4a063SChris Wilson struct i915_vma * __must_check 473f0e4a063SChris Wilson i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, 474f0e4a063SChris Wilson u32 alignment, 475f0e4a063SChris Wilson const struct i915_ggtt_view *view, 476f0e4a063SChris Wilson unsigned int flags); 477f0e4a063SChris Wilson void i915_gem_object_unpin_from_display_plane(struct i915_vma *vma); 478f0e4a063SChris Wilson 4791aff1903SChris Wilson void i915_gem_object_make_unshrinkable(struct drm_i915_gem_object *obj); 4801aff1903SChris Wilson void i915_gem_object_make_shrinkable(struct drm_i915_gem_object *obj); 4811aff1903SChris Wilson void i915_gem_object_make_purgeable(struct drm_i915_gem_object *obj); 4821aff1903SChris Wilson 4838475355fSChris Wilson static inline bool cpu_write_needs_clflush(struct drm_i915_gem_object *obj) 4848475355fSChris Wilson { 4858475355fSChris Wilson if (obj->cache_dirty) 4868475355fSChris Wilson return false; 4878475355fSChris Wilson 4888475355fSChris Wilson if (!(obj->cache_coherent & I915_BO_CACHE_COHERENT_FOR_WRITE)) 4898475355fSChris Wilson return true; 4908475355fSChris Wilson 4915a90606dSChris Wilson /* Currently in use by HW (display engine)? Keep flushed. */ 4925a90606dSChris Wilson return i915_gem_object_is_framebuffer(obj); 4938475355fSChris Wilson } 4948475355fSChris Wilson 4958475355fSChris Wilson static inline void __start_cpu_write(struct drm_i915_gem_object *obj) 4968475355fSChris Wilson { 4978475355fSChris Wilson obj->read_domains = I915_GEM_DOMAIN_CPU; 4988475355fSChris Wilson obj->write_domain = I915_GEM_DOMAIN_CPU; 4998475355fSChris Wilson if (cpu_write_needs_clflush(obj)) 5008475355fSChris Wilson obj->cache_dirty = true; 5018475355fSChris Wilson } 50298932149SChris Wilson 503*f99e67f1SChris Wilson void i915_gem_fence_wait_priority(struct dma_fence *fence, 504*f99e67f1SChris Wilson const struct i915_sched_attr *attr); 505*f99e67f1SChris Wilson 506d45a1a53SChris Wilson int i915_gem_object_wait(struct drm_i915_gem_object *obj, 507d45a1a53SChris Wilson unsigned int flags, 508d45a1a53SChris Wilson long timeout); 509d45a1a53SChris Wilson int i915_gem_object_wait_priority(struct drm_i915_gem_object *obj, 510d45a1a53SChris Wilson unsigned int flags, 511d45a1a53SChris Wilson const struct i915_sched_attr *attr); 512d45a1a53SChris Wilson 513da42104fSChris Wilson void __i915_gem_object_flush_frontbuffer(struct drm_i915_gem_object *obj, 514da42104fSChris Wilson enum fb_op_origin origin); 515da42104fSChris Wilson void __i915_gem_object_invalidate_frontbuffer(struct drm_i915_gem_object *obj, 516da42104fSChris Wilson enum fb_op_origin origin); 517da42104fSChris Wilson 518da42104fSChris Wilson static inline void 519da42104fSChris Wilson i915_gem_object_flush_frontbuffer(struct drm_i915_gem_object *obj, 520da42104fSChris Wilson enum fb_op_origin origin) 521da42104fSChris Wilson { 522da42104fSChris Wilson if (unlikely(rcu_access_pointer(obj->frontbuffer))) 523da42104fSChris Wilson __i915_gem_object_flush_frontbuffer(obj, origin); 524da42104fSChris Wilson } 525da42104fSChris Wilson 526da42104fSChris Wilson static inline void 527da42104fSChris Wilson i915_gem_object_invalidate_frontbuffer(struct drm_i915_gem_object *obj, 528da42104fSChris Wilson enum fb_op_origin origin) 529da42104fSChris Wilson { 530da42104fSChris Wilson if (unlikely(rcu_access_pointer(obj->frontbuffer))) 531da42104fSChris Wilson __i915_gem_object_invalidate_frontbuffer(obj, origin); 532da42104fSChris Wilson } 533da42104fSChris Wilson 53498932149SChris Wilson #endif 535