130 	 * @range_alloc: Allocate a GPU SVM range (optional)
133 	 * Allocate a GPU SVM range.
135 	 * Return: Pointer to the allocated GPU SVM range on success, NULL on failure.
140 	 * @range_free: Free a GPU SVM range (optional)
141 	 * @range: Pointer to the GPU SVM range to be freed
143 	 * Free a GPU SVM range.
145 	void (*range_free)(struct drm_gpusvm_range *range);
153 	 * Invalidate the GPU page tables. It can safely walk the notifier range
191  * struct drm_gpusvm_range_flags - Structure representing a GPU SVM range flags
193  * @migrate_devmem: Flag indicating whether the range can be migrated to device memory
194  * @unmapped: Flag indicating if the range has been unmapped
195  * @partial_unmap: Flag indicating if the range has been partially unmapped
196  * @has_devmem_pages: Flag indicating if the range has devmem pages
197  * @has_dma_mapping: Flag indicating if the range has a DMA mapping
198  * @__flags: Flags for range in u16 form (used for READ_ONCE)
216  * struct drm_gpusvm_range - Structure representing a GPU SVM range
220  * @refcount: Reference count for the range
221  * @itree: Interval tree node for the range (inserted in GPU SVM notifier)
223  * @notifier_seq: Notifier sequence number of the range's pages
226  *            Note this is assuming only one drm_pagemap per range is allowed.
227  * @flags: Flags for range
229  * This structure represents a GPU SVM range used for tracking memory ranges
252  * @mm_range: Range of the GPU SVM
255  * @chunk_sizes: Pointer to the array of chunk sizes used in range allocation.
338 			     struct drm_gpusvm_range *range);
341 			   struct drm_gpusvm_range *range);
344 drm_gpusvm_range_get(struct drm_gpusvm_range *range);
346 void drm_gpusvm_range_put(struct drm_gpusvm_range *range);
349 				  struct drm_gpusvm_range *range);
352 			       struct drm_gpusvm_range *range,
356 				  struct drm_gpusvm_range *range,
360 				 struct drm_gpusvm_range *range,
375 void drm_gpusvm_range_set_unmapped(struct drm_gpusvm_range *range,
396 			  "GPUSVM range lock should be set only once."))\
422  * drm_gpusvm_range_start() - GPU SVM range start address
423  * @range: Pointer to the GPU SVM range
425  * Return: GPU SVM range start address
428 drm_gpusvm_range_start(struct drm_gpusvm_range *range)  in drm_gpusvm_range_start()  argument
430 	return range->itree.start;  in drm_gpusvm_range_start()
434  * drm_gpusvm_range_end() - GPU SVM range end address
435  * @range: Pointer to the GPU SVM range
437  * Return: GPU SVM range end address
440 drm_gpusvm_range_end(struct drm_gpusvm_range *range)  in drm_gpusvm_range_end()  argument
442 	return range->itree.last + 1;  in drm_gpusvm_range_end()
446  * drm_gpusvm_range_size() - GPU SVM range size
447  * @range: Pointer to the GPU SVM range
449  * Return: GPU SVM range size
452 drm_gpusvm_range_size(struct drm_gpusvm_range *range)  in drm_gpusvm_range_size()  argument
454 	return drm_gpusvm_range_end(range) - drm_gpusvm_range_start(range);  in drm_gpusvm_range_size()
495  * __drm_gpusvm_range_next() - Get the next GPU SVM range in the list
496  * @range: a pointer to the current GPU SVM range
499  *         current range is the last one or if the input range is NULL.
502 __drm_gpusvm_range_next(struct drm_gpusvm_range *range)  in __drm_gpusvm_range_next()  argument
504 	if (range && !list_is_last(&range->entry,  in __drm_gpusvm_range_next()
505 				   &range->notifier->range_list))  in __drm_gpusvm_range_next()
506 		return list_next_entry(range, entry);  in __drm_gpusvm_range_next()
514  *	     the iterator. If NULL, call drm_gpusvm_range_find() to get the range.
516  * @start__: Start address of the range
517  * @end__: End address of the range