linux-toradex.git/drivers/gpu/drm/ttm/ttm_execbuf_util.c, branch v3.7

UAPI: (Scripted) Convert #include "..." to #include in drivers/gpu/

2012-10-02T17:01:07+00:00

Convert #include "..." to #include  in drivers/gpu/.

Signed-off-by: David Howells 
Acked-by: Dave Airlie 
Acked-by: Arnd Bergmann 
Acked-by: Thomas Gleixner 
Acked-by: Paul E. McKenney 
Acked-by: Dave Jones

drm/ttm/vmwgfx: Have TTM manage the validation sequence.

2010-11-22T03:25:21+00:00

Rather than having the driver supply the validation sequence, leave that
responsibility to TTM. This saves some confusion and a function argument.

Signed-off-by: Thomas Hellstrom 
Signed-off-by: Dave Airlie

drm/ttm: Improved fencing of buffer object lists

2010-11-22T03:25:20+00:00

Drastically reduce the number of spin lock / unlock operations by performing
unreserving and fencing under global locks.

Signed-off-by: Thomas Hellstrom 
Reviewed-by: Jerome Glisse 
Signed-off-by: Dave Airlie

drm/ttm/radeon/nouveau: Kill the bo lock in favour of a bo device fence_lock

2010-11-22T03:25:18+00:00

The bo lock used only to protect the bo sync object members, and since it
is a per bo lock, fencing a buffer list will see a lot of locks and unlocks.
Replace it with a per-device lock that protects the sync object members on
*all* bos. Reading and setting these members will always be very quick, so
the risc of heavy lock contention is microscopic. Note that waiting for
sync objects will always take place outside of this lock.

The bo device fence lock will eventually be replaced with a seqlock /
rcu mechanism so we can determine that a bo is idle under a
rcu / read seqlock.

However this change will allow us to batch fencing and unreserving of
buffers with a minimal amount of locking.

Signed-off-by: Thomas Hellstrom 
Reviewed-by: Jerome Glisse 
Signed-off-by: Dave Airlie

drm/ttm: Optimize ttm_eu_backoff_reservation

2010-11-22T03:25:15+00:00

Avoid the ttm_bo_unreserve() spinlocks by calling
ttm_eu_backoff_reservation_locked under the lru spinlock.

Signed-off-by: Thomas Hellstrom 
Reviewed-by: Jerome Glisse 
Signed-off-by: Dave Airlie

drm/ttm: Add a bo list reserve fastpath (v2)

2010-11-22T03:24:40+00:00

Makes it possible to reserve a list of buffer objects with a single
spin lock / unlock if there is no contention.
Should improve cpu usage on SMP kernels.

v2: Initialize private list members on reserve and don't call
ttm_bo_list_ref_sub() with zero put_count.

Signed-off-by: Thomas Hellstrom 
Signed-off-by: Dave Airlie

drm/ttm: Add TTM execbuf utilities.

2009-12-07T05:22:05+00:00

Utilities to reserve, unreserve and fence a list of TTM
buffer objects in a deadlock-safe manner.

Used by the vmwgfx driver.

Signed-off-by: Thomas Hellstrom 
Signed-off-by: Dave Airlie