fdo-mirrors/mesa-drm
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/drm.git synced 2026-05-09 02:48:04 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Add a one-page hole in the file offset space between buffers.

Browse source
This commit is contained in:
Thomas Hellstrom 2006-10-26 21:14:23 +02:00
parent 7ea059ae07
commit b4fba1679b
1 changed files with 8 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
linux-core/drm_ttm.c
View file

@ -489,14 +489,20 @@ int drm_ttm_object_create(drm_device_t * dev, unsigned long size,
map->size = ttm->num_pages * PAGE_SIZE;
map->handle = (void *)object;
/*
* Add a one-page "hole" to the block size to avoid the mm subsystem
* merging vmas.
* FIXME: Is this really needed?
*/
list->file_offset_node = drm_mm_search_free(&dev->offset_manager,
ttm->num_pages, 0, 0);
ttm->num_pages + 1, 0, 0);
if (!list->file_offset_node) {
drm_ttm_object_remove(dev, object);
return -ENOMEM;
}
list->file_offset_node = drm_mm_get_block(list->file_offset_node,
ttm->num_pages, 0);
ttm->num_pages + 1, 0);
list->hash.key = list->file_offset_node->start;