drm/vmwgfx/vmwgfx_page_dirty.c

35  * @start: First currently dirty bit
46 	unsigned long start;
57 	return vbo->dirty && (vbo->dirty->start < vbo->dirty->end);
79 		 &dirty->start, &dirty->end);
93 						  &dirty->start, &dirty->end);
113 	if (dirty->end <= dirty->start)
117 					     dirty->start + offset,
118 					     dirty->end - dirty->start);
127 		pgoff_t start = 0;
133 						  &start, &end);
135 		if (dirty->start < dirty->end)
136 			bitmap_set(&dirty->bitmap[0], dirty->start,
137 				   dirty->end - dirty->start);
163  * @start: First page of the range within the buffer object.
171 				   pgoff_t start, pgoff_t end)
177 	if (dirty->method != VMW_BO_DIRTY_PAGETABLE || start >= end)
180 	wp_shared_mapping_range(mapping, start + offset, end - start);
181 	clean_record_shared_mapping_range(mapping, start + offset,
182 					  end - start, offset,
183 					  &dirty->bitmap[0], &dirty->start,
190  * @start: First page of the range within the buffer object.
196 			pgoff_t start, pgoff_t end)
201 	vmw_bo_dirty_pre_unmap(vbo, start, end);
202 	unmap_shared_mapping_range(mapping, (offset + start) << PAGE_SHIFT,
203 				   (loff_t) (end - start) << PAGE_SHIFT);
236 	dirty->start = dirty->bitmap_size;
252 						  &dirty->start, &dirty->end);
297 	pgoff_t start, cur, end;
305 	if (res_start >= dirty->end || res_end <= dirty->start)
308 	cur = max(res_start, dirty->start);
313 		start = find_next_bit(&dirty->bitmap[0], res_end, cur);
314 		if (start >= res_end)
317 		end = find_next_zero_bit(&dirty->bitmap[0], res_end, start + 1);
319 		num = end - start;
320 		bitmap_clear(&dirty->bitmap[0], start, num);
321 		vmw_resource_dirty_update(res, start, end);
324 	if (res_start <= dirty->start && res_end > dirty->start)
325 		dirty->start = res_end;
333 	pgoff_t start, cur, end;
341 	if (res_start >= dirty->end || res_end <= dirty->start)
344 	cur = max(res_start, dirty->start);
349 		start = find_next_bit(&dirty->bitmap[0], res_end, cur);
350 		if (start >= res_end)
353 		end = find_next_zero_bit(&dirty->bitmap[0], res_end, start + 1);
355 		num = end - start;
356 		bitmap_clear(&dirty->bitmap[0], start, num);
359 	if (res_start <= dirty->start && res_end > dirty->start)
360 		dirty->start = res_end;
383 	if (res_start >= dirty->end || res_end <= dirty->start)
386 	res_start = max(res_start, dirty->start);
390 	if (res_start <= dirty->start && res_end > dirty->start)
391 		dirty->start = res_end;
428 		dirty->start = min(dirty->start, page_offset);