72  * Instantiate find diff functions for relevant unsigned integer sizes,
241  * @diff: The struct vmw_diff_cpy closure argument (unused).
246 void vmw_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src, size_t n)  in vmw_memcpy()  argument
255  * @diff: The struct vmw_diff_cpy used to track the modified bounding box.
256  * @diff_offs: The offset from @diff->line_offset where the difference was
259 static void vmw_adjust_rect(struct vmw_diff_cpy *diff, size_t diff_offs)  in vmw_adjust_rect()  argument
261 	size_t offs = (diff_offs + diff->line_offset) / diff->cpp;  in vmw_adjust_rect()
262 	struct drm_rect *rect = &diff->rect;  in vmw_adjust_rect()
266 	rect->y1 = min_t(int, rect->y1, diff->line);  in vmw_adjust_rect()
267 	rect->y2 = max_t(int, rect->y2, diff->line + 1);  in vmw_adjust_rect()
273  * @diff: The struct vmw_diff_cpy used to track the modified bounding box.
278  * In order to correctly track the modified content, the field @diff->line must
279  * be pre-loaded with the current line number, the field @diff->line_offset must
281  * finally the field @diff->cpp need to be preloaded with the number of bytes
288 void vmw_diff_memcpy(struct vmw_diff_cpy *diff, u8 *dest, const u8 *src,  in vmw_diff_memcpy()  argument
293 	if (WARN_ON_ONCE(round_down(n, diff->cpp) != n))  in vmw_diff_memcpy()
297 	csize = vmw_find_first_diff(dest, src, n, diff->cpp);  in vmw_diff_memcpy()
299 		vmw_adjust_rect(diff, csize);  in vmw_diff_memcpy()
300 		byte_len = diff->cpp;  in vmw_diff_memcpy()
306 		diff->line_offset += csize;  in vmw_diff_memcpy()
310 		csize = vmw_find_last_diff(dest, src, n, diff->cpp);  in vmw_diff_memcpy()
313 			vmw_adjust_rect(diff, csize);  in vmw_diff_memcpy()
317 	diff->line_offset += n;  in vmw_diff_memcpy()
333  * @diff: Struct vmw_diff_cpy, in the end forwarded to the memcpy routine.
346 	struct vmw_diff_cpy *diff;  member
362 	struct vmw_diff_cpy *diff = d->diff;  in vmw_bo_cpu_blit_line()  local
412 		diff->do_cpy(diff, d->dst_addr + dst_page_offset,  in vmw_bo_cpu_blit_line()
434  * @diff: The struct vmw_diff_cpy used to track the modified bounding box.
452 		    struct vmw_diff_cpy *diff)  in vmw_bo_cpu_blit()  argument
490 	d.diff = diff;  in vmw_bo_cpu_blit()
493 		diff->line = j + initial_line;  in vmw_bo_cpu_blit()
494 		diff->line_offset = dst_offset % dst_stride;  in vmw_bo_cpu_blit()