drm/radeon: use normal BOs for the page tables v4

No need to make it more complicated than necessary,
just allocate the page tables as normal BO and
flush whenever the address change.

v2: update comments and function name
v3: squash bug fixes, page directory and tables patch
v4: rebased on Mareks changes

Signed-off-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Christian König 2014-02-20 13:42:17 +01:00
commit 6d2f2944e9
5 changed files with 269 additions and 295 deletions