107  * sequence of operations to satisfy a given map or unmap request.
116  * containing map, unmap and remap operations for a given newly requested
123  * of unmap operations, a maximum of two remap operations and a single map
131  * &drm_gpuva to unmap is physically contiguous with the original mapping
138  * one unmap operation and one or two map operations, such that drivers can
146  * call back into the driver in order to unmap a range of GPU VA space. The
148  * enclosed by the given range unmap operations are created. For mappings which
467  * &drm_gpuva_op in order to satisfy a given map or unmap request and how to
520  *				va = op->remap.unmap->va;
550  *				va = op->unmap->va;
554  *				drm_gpuva_unmap(&op->unmap);
643  *		struct drm_gpuva *va = op->remap.unmap->va;
665  *		drm_gpuva_unlink(op->unmap.va);
666  *		drm_gpuva_unmap(&op->unmap);
667  *		kfree(op->unmap.va);
2023 	struct drm_gpuva *va = op->unmap->va;  in drm_gpuva_remap()
2074 	    struct drm_gpuva_op_unmap *unmap)  in op_remap_cb()  argument
2083 	r->unmap = unmap;  in op_remap_cb()
2095 	op.unmap.va = va;  in op_unmap_cb()
2096 	op.unmap.keep = merge;  in op_unmap_cb()
2283 			struct drm_gpuva_op_unmap unmap = { .va = va };  in __drm_gpuvm_sm_unmap()  local
2288 					  &unmap);  in __drm_gpuvm_sm_unmap()
2323  * A sequence of callbacks can contain map, unmap and remap operations, but
2327  * There can be an arbitrary amount of unmap operations, a maximum of two remap
2352  * drm_gpuvm_sm_unmap() - creates the &drm_gpuva_ops to split on unmap
2355  * @req_addr: the start address of the range to unmap
2356  * @req_range: the range of the mappings to unmap
2360  * unmap and, if required, split existent mappings.
2370  * A sequence of callbacks can contain unmap and remap operations, depending on
2373  * There can be an arbitrary amount of unmap operations and a maximum of two
2444 		r->unmap = kmemdup(__r->unmap, sizeof(*r->unmap),  in drm_gpuva_sm_step()
2446 		if (unlikely(!r->unmap))  in drm_gpuva_sm_step()
2469 	kfree(op->remap.unmap);  in drm_gpuva_sm_step()
2496  * in the given order. It can contain map, unmap and remap operations, but it
2500  * There can be an arbitrary amount of unmap operations, a maximum of two remap
2553  * unmap
2555  * @req_addr: the start address of the range to unmap
2556  * @req_range: the range of the mappings to unmap
2559  * required, splitting of the mappings overlapping the unmap range.
2562  * in the given order. It can contain unmap and remap operations, depending on
2565  * There can be an arbitrary amount of unmap operations and a maximum of two
2568  * Note that before calling this function again with another range to unmap it
2668  * drm_gpuvm_bo_unmap_ops_create() - creates the &drm_gpuva_ops to unmap a GEM
2675  * arbitrary amount of unmap operations.
2709 		op->unmap.va = va;  in drm_gpuvm_bo_unmap_ops_create()
2741 			kfree(op->remap.unmap);  in drm_gpuva_ops_free()