| commit | 0bc254257bfd9b25f64a68b719ee70a303b6d051 | [log] [tgz] |
|---|---|---|
| author | Thomas Hellstrom <thellstrom@vmware.com> | Sun Nov 17 23:30:38 2013 -0800 |
| committer | Thomas Hellstrom <thellstrom@vmware.com> | Wed Nov 20 03:43:28 2013 -0800 |
| tree | a0ee8aa093f279b1c21af6f8c467767b950ddadd | |
| parent | a3483353ca4e6dbeef2ed62ebed01af109b5b27a [diff] |
drm/ttm: Don't move non-existing data If ttm_bo_move_memcpy was instructed to move a non-populated ttm to io memory, it would first populate the ttm, then move the data and then destroy the ttm. That's stupid. However, some drivers might have relied on this to clear io memory from old stuff. So instead of a NOP, which would be the most efficient, just clear the destination. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>