include/drm/drm_gpusvm.h

24  * struct drm_gpusvm_devmem_ops - Operations structure for GPU SVM device memory
26  * This structure defines the operations for GPU Shared Virtual Memory (SVM)
27  * device memory. These operations are provided by the GPU driver to manage device memory
84  * struct drm_gpusvm_devmem - Structure representing a GPU SVM device memory allocation
89  * @ops: Pointer to the operations structure for GPU SVM device memory
105  * struct drm_gpusvm_ops - Operations structure for GPU SVM
107  * This structure defines the operations for GPU Shared Virtual Memory (SVM).
108  * These operations are provided by the GPU driver to manage SVM ranges and
113 	 * @notifier_alloc: Allocate a GPU SVM notifier (optional)
115 	 * Allocate a GPU SVM notifier.
117 	 * Return: Pointer to the allocated GPU SVM notifier on success, NULL on failure.
122 	 * @notifier_free: Free a GPU SVM notifier (optional)
123 	 * @notifier: Pointer to the GPU SVM notifier to be freed
125 	 * Free a GPU SVM notifier.
130 	 * @range_alloc: Allocate a GPU SVM range (optional)
131 	 * @gpusvm: Pointer to the GPU SVM
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.
148 	 * @invalidate: Invalidate GPU SVM notifier (required)
149 	 * @gpusvm: Pointer to the GPU SVM
150 	 * @notifier: Pointer to the GPU SVM notifier
153 	 * Invalidate the GPU page tables. It can safely walk the notifier range
162  * struct drm_gpusvm_notifier - Structure representing a GPU SVM notifier
164  * @gpusvm: Pointer to the GPU SVM structure
166  * @itree: Interval tree node for the notifier (inserted in GPU SVM)
176  * This structure represents a GPU SVM notifier.
191  * struct drm_gpusvm_range_flags - Structure representing a GPU SVM range flags
216  * struct drm_gpusvm_range - Structure representing a GPU SVM range
218  * @gpusvm: Pointer to the GPU SVM structure
219  * @notifier: Pointer to the GPU SVM notifier
221  * @itree: Interval tree node for the range (inserted in GPU SVM notifier)
229  * This structure represents a GPU SVM range used for tracking memory ranges
245  * struct drm_gpusvm - GPU SVM structure
247  * @name: Name of the GPU SVM
251  * @mm_start: Start address of GPU SVM
252  * @mm_range: Range of the GPU SVM
254  * @ops: Pointer to the operations structure for GPU SVM
259  * @root: Cached root node of the Red-Black tree containing GPU SVM notifiers
264  * This structure represents a GPU SVM (Shared Virtual Memory) used for tracking
295  * struct drm_gpusvm_ctx - DRM GPU SVM context
301  *		  remains with either exclusive GPU or CPU access.
385  * drm_gpusvm_driver_set_lock() - Set the lock protecting accesses to GPU SVM
386  * @gpusvm: Pointer to the GPU SVM structure.
404  * drm_gpusvm_notifier_lock() - Lock GPU SVM notifier
405  * @gpusvm__: Pointer to the GPU SVM structure.
407  * Abstract client usage GPU SVM notifier lock, take lock
413  * drm_gpusvm_notifier_unlock() - Unlock GPU SVM notifier
414  * @gpusvm__: Pointer to the GPU SVM structure.
416  * Abstract client usage GPU SVM notifier lock, drop lock
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
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
446  * drm_gpusvm_range_size() - GPU SVM range size
447  * @range: Pointer to the GPU SVM range
449  * Return: GPU SVM range size
458  * drm_gpusvm_notifier_start() - GPU SVM notifier start address
459  * @notifier: Pointer to the GPU SVM notifier
461  * Return: GPU SVM notifier start address
470  * drm_gpusvm_notifier_end() - GPU SVM notifier end address
471  * @notifier: Pointer to the GPU SVM notifier
473  * Return: GPU SVM notifier end address
482  * drm_gpusvm_notifier_size() - GPU SVM notifier size
483  * @notifier: Pointer to the GPU SVM notifier
485  * Return: GPU SVM notifier 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
512  * drm_gpusvm_for_each_range() - Iterate over GPU SVM ranges in a notifier
515  * @notifier__: Pointer to the GPU SVM notifier
519  * This macro is used to iterate over GPU SVM ranges in a notifier. It is safe