OpenCloudOS-Kernel/include/drm/ttm
David Herrmann 72525b3f33 drm/ttm: convert to unified vma offset manager
Use the new vma-manager infrastructure. This doesn't change any
implementation details as the vma-offset-manager is nearly copied 1-to-1
from TTM.

The vm_lock is moved into the offset manager so we can drop it from TTM.
During lookup, we use the vma locking helpers to take a reference to the
found object.
In all other scenarios, locking stays the same as before. We always
guarantee that drm_vma_offset_remove() is called only during destruction.
Hence, helpers like drm_vma_node_offset_addr() are always safe as long as
the node has a valid offset.

This also drops the addr_space_offset member as it is a copy of vm_start
in vma_node objects. Use the accessor functions instead.

v4:
 - remove vm_lock
 - use drm_vma_offset_lock_lookup() to protect lookup (instead of vm_lock)

Cc: Dave Airlie <airlied@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Martin Peres <martin.peres@labri.fr>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-07-25 20:47:07 +10:00
..
ttm_bo_api.h drm/ttm: convert to unified vma offset manager 2013-07-25 20:47:07 +10:00
ttm_bo_driver.h drm/ttm: convert to unified vma offset manager 2013-07-25 20:47:07 +10:00
ttm_execbuf_util.h drm/ttm: convert to the reservation api 2013-06-28 12:04:01 +10:00
ttm_lock.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
ttm_memory.h drm/ttm: remove ttm_mem_global->queue 2012-11-20 16:06:22 +10:00
ttm_module.h drm: move ttm global code to core drm 2010-08-04 09:46:06 +10:00
ttm_object.h drm/ttm, drm/vmwgfx: Use RCU locking for object lookups v3 2012-11-20 16:15:05 +10:00
ttm_page_alloc.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
ttm_placement.h drm: Add the TTM GPU memory manager subsystem. 2009-06-15 09:37:57 +10:00