kernel/linux.git/drivers/gpu/drm/ttm, branch v4.20.9

drm/ttm: fix LRU handling in ttm_buffer_object_transfer

2018-11-30T17:12:16+00:00

We need to set the NO_EVICT flag on the ghost object or otherwise we are adding it to the LRU. When it is added to the LRU we can run into a race between destroying and evicting it again. Signed-off-by: Christian König Acked-by: Alex Deucher Signed-off-by: Alex Deucher

list: introduce list_bulk_move_tail helper

2018-10-10T20:20:54+00:00

Move all entries between @first and including @last before @head. This is useful for LRU lists where a whole block of entries should be moved to the end of the list. Used as a band aid in TTM, but better placed in the common list headers. Acked-by: Dave Airlie Signed-off-by: Christian König Reviewed-by: Huang Rui Reviewed-by: Junwei Zhang Signed-off-by: Alex Deucher

drm/ttm: Export ttm_bo_get_unless_zero()

2018-09-28T06:55:10+00:00

Export ttm_bo_get_unless_zero() to be used when looking up buffer objects that are removed from the lookup structure in the destructor. Signed-off-by: Thomas Hellstrom Reviewed-by: Sinclair Yeh Reviewed-by: Christian König

drm/ttm, drm/vmwgfx: Move the lock- and object functionality to the vmwgfx driver

2018-09-27T13:19:20+00:00

No other driver is using this functionality so move it out of TTM and into the vmwgfx driver. Update includes and remove exports. Also annotate to remove false static analyzer lock balance warnings. Signed-off-by: Thomas Hellstrom Reviewed-by: Christian König

drm/ttm: once more fix ttm_bo_bulk_move_lru_tail

2018-09-13T20:14:11+00:00

While cutting the lists we sometimes accidentally added a list_head from the stack to the LRUs, effectively corrupting the list. Remove the list cutting and use explicit list manipulation instead. Signed-off-by: Christian König Reviewed-and-Tested: Huang Rui Tested-by: Mike Lothian Signed-off-by: Alex Deucher

drm/ttm: fix ttm_bo_bulk_move_helper

2018-09-02T15:16:32+00:00

Staring at the function for six hours, just to essentially move one line of code. The problem was that the first list_cut_position call could result in list2 pointing to la-la-land. Signed-off-by: Christian König Tested-by: Michel Dänzer Signed-off-by: Alex Deucher

drm/ttm: Initialize local lists in ttm_bo_bulk_move_helper

2018-08-29T17:35:59+00:00

The first parameter of list_cut_position() must point to an initialized list. Noticed thanks to KASAN pointing out something's fishy here. Fixes: "drm/ttm: add bulk move function on LRU" Reviewed-by: Christian König Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher

drm/ttm: add bulk move function on LRU

2018-08-27T16:11:21+00:00

This function allow us to bulk move a group of BOs to the tail of their LRU. The positions of group of BOs are stored on the (first, last) bulk_move_pos structure. Signed-off-by: Christian König Signed-off-by: Huang Rui Tested-by: Mike Lothian Tested-by: Dieter Nützel Acked-by: Chunming Zhou Reviewed-by: Junwei Zhang Signed-off-by: Alex Deucher

drm/ttm: revise ttm_bo_move_to_lru_tail to support bulk moves

2018-08-27T16:11:21+00:00

When move a BO to the end of LRU, it need remember the BO positions. Make sure all moved bo in between "first" and "last". And they will be bulk moving together. Signed-off-by: Christian König Signed-off-by: Huang Rui Tested-by: Mike Lothian Tested-by: Dieter Nützel Acked-by: Chunming Zhou Reviewed-by: Junwei Zhang Signed-off-by: Alex Deucher

drm/ttm: remove dead codes

2018-08-27T16:11:02+00:00

These codes are not used. Signed-off-by: Huang Rui Reviewed-by: Christian König Signed-off-by: Alex Deucher