linux/include/drm/ttm, branch v3.9

drm/ttm: unexport ttm_bo_wait_unreserved

2013-01-15T15:49:39Z

All legitimate users of this function outside ttm_bo.c are gone, now it's only an implementation detail. Signed-off-by: Maarten Lankhorst Reviewed-by: Jerome Glisse

drm/ttm: add ttm_bo_reserve_slowpath

2013-01-15T13:57:05Z

Instead of dropping everything, waiting for the bo to be unreserved and trying over, a better strategy would be to do a blocking wait. This can be mapped a lot better to a mutex_lock-like call. Signed-off-by: Maarten Lankhorst Reviewed-by: Jerome Glisse

drm/ttm: remove lru_lock around ttm_bo_reserve

2013-01-15T13:56:37Z

There should no longer be assumptions that reserve will always succeed with the lru lock held, so we can safely break the whole atomic reserve/lru thing. As a bonus this fixes most lockdep annotations for reservations. Signed-off-by: Maarten Lankhorst Reviewed-by: Jerome Glisse

drm/ttm: remove no_wait_reserve, v3

2012-12-10T10:21:30Z

All items on the lru list are always reservable, so this is a stupid thing to keep. Not only that, it is used in a way which would guarantee deadlocks if it were ever to be set to block on reserve. This is a lot of churn, but mostly because of the removal of the argument which can be nested arbitrarily deeply in many places. No change of code in this patch except removal of the no_wait_reserve argument, the previous patch removed the use of no_wait_reserve. v2: - Warn if -EBUSY is returned on reservation, all objects on the list should be reservable. Adjusted patch slightly due to conflicts. v3: - Focus on no_wait_reserve removal only. Signed-off-by: Maarten Lankhorst Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie

drm/ttm: alter cpu_writers to return -EBUSY in ttm_execbuf_util reservations

2012-11-20T06:17:35Z

This is similar to other platforms that don't allow command submission to buffers locked on the cpu. Signed-off-by: Maarten Lankhorst Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie

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

drm/ttm: remove sync_arg from driver functions

2012-11-20T06:10:10Z

Signed-off-by: Maarten Lankhorst Reviewed-By: Thomas Hellstrom Signed-off-by: Dave Airlie

drm/ttm: remove sync_obj_arg from ttm_bo_move_accel_cleanup

2012-11-20T06:10:02Z

Signed-off-by: Maarten Lankhorst Reviewed-By: Thomas Hellstrom Signed-off-by: Dave Airlie

drm/ttm: remove sync_obj_arg member

2012-11-20T06:09:55Z

vmwgfx was its only user and always sets it to the same.. Signed-off-by: Maarten Lankhorst Reviewed-By: Thomas Hellstrom Signed-off-by: Dave Airlie

drm/ttm: remove ttm_mem_global->queue

2012-11-20T06:06:22Z

It's unused. Signed-off-by: Marcin Slusarz Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie