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* drm/ttm, drm/vmwgfx: Use RCU locking for object lookups v3Thomas Hellstrom2012-11-20
| | | | | | | | | | | | | | 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 <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel ↵David Howells2012-10-02
| | | | | | | | | | | | system headers Convert #include "..." to #include <path/...> in kernel system headers. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
* ttm: Fix spelling mistakes and remove unused #ifdefKonrad Rzeszutek Wilk2011-06-20
| | | | | | | | | . and some comments to make it easier to understand. Ackedby: Randy Dunlap <randy.dunlap@oracle.com> [v2: Added some more updates from Randy Dunlap] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: Add more driver type enumsJakob Bornecrantz2009-12-14
| | | | | Signed-off-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: Add user-space objects.Thomas Hellstrom2009-12-07
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 <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>