70 				struct xe_res_cursor *cur)  in xe_res_first()  argument
72 	cur->sgl = NULL;  in xe_res_first()
78 	cur->mem_type = res->mem_type;  in xe_res_first()
80 	switch (cur->mem_type) {  in xe_res_first()
105 		cur->mm = mm;  in xe_res_first()
106 		cur->start = drm_buddy_block_offset(block) + start;  in xe_res_first()
107 		cur->size = min(drm_buddy_block_size(mm, block) - start,  in xe_res_first()
109 		cur->remaining = size;  in xe_res_first()
110 		cur->node = block;  in xe_res_first()
120 	cur->start = start;  in xe_res_first()
121 	cur->size = size;  in xe_res_first()
122 	cur->remaining = size;  in xe_res_first()
123 	cur->node = NULL;  in xe_res_first()
124 	cur->mem_type = XE_PL_TT;  in xe_res_first()
128 static inline void __xe_res_sg_next(struct xe_res_cursor *cur)  in __xe_res_sg_next()  argument
130 	struct scatterlist *sgl = cur->sgl;  in __xe_res_sg_next()
131 	u64 start = cur->start;  in __xe_res_sg_next()
139 	cur->start = start;  in __xe_res_sg_next()
140 	cur->size = sg_dma_len(sgl) - start;  in __xe_res_sg_next()
141 	cur->sgl = sgl;  in __xe_res_sg_next()
156 				   struct xe_res_cursor *cur)  in xe_res_first_sg()  argument
159 	cur->node = NULL;  in xe_res_first_sg()
160 	cur->start = start;  in xe_res_first_sg()
161 	cur->remaining = size;  in xe_res_first_sg()
162 	cur->size = 0;  in xe_res_first_sg()
163 	cur->sgl = sg->sgl;  in xe_res_first_sg()
164 	cur->mem_type = XE_PL_TT;  in xe_res_first_sg()
165 	__xe_res_sg_next(cur);  in xe_res_first_sg()
176 static inline void xe_res_next(struct xe_res_cursor *cur, u64 size)  in xe_res_next()  argument
182 	XE_WARN_ON(size > cur->remaining);  in xe_res_next()
184 	cur->remaining -= size;  in xe_res_next()
185 	if (!cur->remaining)  in xe_res_next()
188 	if (cur->size > size) {  in xe_res_next()
189 		cur->size -= size;  in xe_res_next()
190 		cur->start += size;  in xe_res_next()
194 	if (cur->sgl) {  in xe_res_next()
195 		cur->start += size;  in xe_res_next()
196 		__xe_res_sg_next(cur);  in xe_res_next()
200 	switch (cur->mem_type) {  in xe_res_next()
204 		start = size - cur->size;  in xe_res_next()
205 		block = cur->node;  in xe_res_next()
211 		while (start >= drm_buddy_block_size(cur->mm, block)) {  in xe_res_next()
212 			start -= drm_buddy_block_size(cur->mm, block);  in xe_res_next()
218 		cur->start = drm_buddy_block_offset(block) + start;  in xe_res_next()
219 		cur->size = min(drm_buddy_block_size(cur->mm, block) - start,  in xe_res_next()
220 				cur->remaining);  in xe_res_next()
221 		cur->node = block;  in xe_res_next()
233 static inline u64 xe_res_dma(const struct xe_res_cursor *cur)  in xe_res_dma()  argument
235 	return cur->sgl ? sg_dma_address(cur->sgl) + cur->start : cur->start;  in xe_res_dma()