kernel/include/drm/ttm/ttm_object.h, branch linux-4.15.y

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

drm/ttm: Add user-space objects.

2009-12-07T05:22:01Z

Add objects needed for user-space to maintain reference counts on ttm objects. This is used by the vmwgfx driver which allows user-space to maintain map-counts on dma buffers, lock-counts on the ttm lock and ref-counts on gpu surfaces, gpu contexts and dma buffer. Signed-off-by: Thomas Hellstrom Signed-off-by: Dave Airlie