kernel/include/drm/ttm/ttm_object.h, branch linux-5.11.y

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

2018-09-27T13:19:20Z

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: fix include notation and remove -Iinclude/drm flag

2017-05-16T15:17:16Z

For the C file, include instead of relative path from include/drm. For headers in include/drm/ttm, simplify the with "*.h". This allows us to remove the -Iinclude/drm compiler flag from drivers/gpu/drm/ttm/Makefile (and from other drivers' Makefiles). Signed-off-by: Masahiro Yamada Reviewed-by: Michel Dänzer Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1493009447-31524-3-git-send-email-yamada.masahiro@socionext.com

drm/ttm, drm/vmwgfx: Relax permission checking when opening surfaces

2017-03-30T09:43:39Z

Previously, when a surface was opened using a legacy (non prime) handle, it was verified to have been created by a client in the same master realm. Relax this so that opening is also allowed recursively if the client already has the surface open. This works around a regression in svga mesa where opening of a shared surface is used recursively to obtain surface information. Cc: Signed-off-by: Thomas Hellstrom Reviewed-by: Sinclair Yeh

drm/ttm: Add a ttm_ref_object_exists function

2014-03-28T13:19:03Z

A function to be used to check whether a caller has put a ref object (opened) a struct ttm_base_object Signed-off-by: Thomas Hellstrom Reviewed-by: Brian Paul

drm/ttm: ttm object security fixes for render nodes

2014-01-08T09:11:57Z

When a client looks up a ttm object, don't look it up through the device hash table, but rather from the file hash table. That makes sure that the client has indeed put a reference on the object, or in gem terms, has opened the object; either using prime or using the global "name". To avoid a performance loss, make sure the file hash table entries can be looked up from under an RCU lock, and as a consequence, replace the rwlock with a spinlock, since we never need to take it in read mode only anymore. Finally add a ttm object lookup function for the device hash table, that is intended to be used when we put a ref object on a base object or, in gem terms, when we open the object. Signed-off-by: Thomas Hellstrom Reviewed-by: Brian Paul

drm/ttm: Add a minimal prime implementation for ttm base objects

2013-11-18T08:46:41Z

Signed-off-by: Thomas Hellstrom Reviewed-by: Jakob Bornecrantz

drm/ttm, drm/vmwgfx: Use RCU locking for object lookups v3

2012-11-20T06:15:05Z

The mostly used lookup+get put+potential_destroy path of TTM objects is converted to use RCU locks. This will substantially decrease the amount of locked bus cycles during normal operation. Since we use kfree_rcu to free the objects, no rcu synchronization is needed at module unload time. v2: Don't touch include/linux/kref.h v3: Adapt to kref_get_unless_zero return value change Signed-off-by: Thomas Hellstrom Signed-off-by: Dave Airlie

UAPI: (Scripted) Convert #include "..." to #include in kernel system headers

2012-10-02T17:01:25Z

Convert #include "..." to #include in kernel system headers. Signed-off-by: David Howells Acked-by: Arnd Bergmann Acked-by: Thomas Gleixner Acked-by: Paul E. McKenney Acked-by: Dave Jones

ttm: Fix spelling mistakes and remove unused #ifdef

2011-06-21T02:33:18Z

. and some comments to make it easier to understand. Ackedby: Randy Dunlap [v2: Added some more updates from Randy Dunlap] Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Dave Airlie

drm/ttm: Add more driver type enums

2009-12-14T22:38:18Z

Signed-off-by: Jakob Bornecrantz Signed-off-by: Dave Airlie