31 	 * @notifier_alloc: Allocate a GPU SVM notifier (optional)
33 	 * Allocate a GPU SVM notifier.
35 	 * Return: Pointer to the allocated GPU SVM notifier on success, NULL on failure.
40 	 * @notifier_free: Free a GPU SVM notifier (optional)
41 	 * @notifier: Pointer to the GPU SVM notifier to be freed
43 	 * Free a GPU SVM notifier.
45 	void (*notifier_free)(struct drm_gpusvm_notifier *notifier);
66 	 * @invalidate: Invalidate GPU SVM notifier (required)
68 	 * @notifier: Pointer to the GPU SVM notifier
71 	 * Invalidate the GPU page tables. It can safely walk the notifier range
72 	 * RB tree/list in this function. Called while holding the notifier lock.
75 			   struct drm_gpusvm_notifier *notifier,
80  * struct drm_gpusvm_notifier - Structure representing a GPU SVM notifier
83  * @notifier: MMU interval notifier
84  * @itree: Interval tree node for the notifier (inserted in GPU SVM)
90  * @flags: Flags for notifier
91  * @flags.removed: Flag indicating whether the MMU interval notifier has been
94  * This structure represents a GPU SVM notifier.
98 	struct mmu_interval_notifier notifier;  member
123 			/* All flags below must be set / cleared under notifier lock */
139  * @notifier_seq: Notifier sequence number of the range's pages
158  * @notifier: Pointer to the GPU SVM notifier
160  * @itree: Interval tree node for the range (inserted in GPU SVM notifier)
169 	struct drm_gpusvm_notifier *notifier;  member
189  * @notifier_lock: Read-write semaphore for protecting notifier operations
234  * @in_notifier: entering from a MMU notifier
305 drm_gpusvm_range_find(struct drm_gpusvm_notifier *notifier, unsigned long start,
314 			 struct mmu_interval_notifier *notifier,
348  * drm_gpusvm_notifier_lock() - Lock GPU SVM notifier
351  * Abstract client usage GPU SVM notifier lock, take lock
357  * drm_gpusvm_notifier_unlock() - Unlock GPU SVM notifier
360  * Abstract client usage GPU SVM notifier lock, drop lock
402  * drm_gpusvm_notifier_start() - GPU SVM notifier start address
403  * @notifier: Pointer to the GPU SVM notifier
405  * Return: GPU SVM notifier start address
408 drm_gpusvm_notifier_start(struct drm_gpusvm_notifier *notifier)  in drm_gpusvm_notifier_start()  argument
410 	return notifier->itree.start;  in drm_gpusvm_notifier_start()
414  * drm_gpusvm_notifier_end() - GPU SVM notifier end address
415  * @notifier: Pointer to the GPU SVM notifier
417  * Return: GPU SVM notifier end address
420 drm_gpusvm_notifier_end(struct drm_gpusvm_notifier *notifier)  in drm_gpusvm_notifier_end()  argument
422 	return notifier->itree.last + 1;  in drm_gpusvm_notifier_end()
426  * drm_gpusvm_notifier_size() - GPU SVM notifier size
427  * @notifier: Pointer to the GPU SVM notifier
429  * Return: GPU SVM notifier size
432 drm_gpusvm_notifier_size(struct drm_gpusvm_notifier *notifier)  in drm_gpusvm_notifier_size()  argument
434 	return drm_gpusvm_notifier_end(notifier) -  in drm_gpusvm_notifier_size()
435 		drm_gpusvm_notifier_start(notifier);  in drm_gpusvm_notifier_size()
449 				   &range->notifier->range_list))  in __drm_gpusvm_range_next()
456  * drm_gpusvm_for_each_range() - Iterate over GPU SVM ranges in a notifier
459  * @notifier__: Pointer to the GPU SVM notifier
463  * This macro is used to iterate over GPU SVM ranges in a notifier. It is safe
464  * to use while holding the driver SVM lock or the notifier lock.
473  * drm_gpusvm_for_each_range_safe() - Safely iterate over GPU SVM ranges in a notifier
476  * @notifier__: Pointer to the GPU SVM notifier
480  * This macro is used to iterate over GPU SVM ranges in a notifier while
491  * @notifier: a pointer to the current drm_gpusvm_notifier
494  *         the current notifier is the last one or if the input notifier is
498 __drm_gpusvm_notifier_next(struct drm_gpusvm_notifier *notifier)  in __drm_gpusvm_notifier_next()  argument
500 	if (notifier && !list_is_last(&notifier->entry,  in __drm_gpusvm_notifier_next()
501 				      &notifier->gpusvm->notifier_list))  in __drm_gpusvm_notifier_next()
502 		return list_next_entry(notifier, entry);  in __drm_gpusvm_notifier_next()
510  * @gpusvm__: Pointer to the GPU SVM notifier
511  * @start__: Start address of the notifier
512  * @end__: End address of the notifier
525  * @gpusvm__: Pointer to the GPU SVM notifier
526  * @start__: Start address of the notifier
527  * @end__: End address of the notifier