diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2016-12-12 17:52:45 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-09 08:32:19 +0100 |
| commit | bfa563bae25131fc084c273b43a789819e302fe7 (patch) | |
| tree | 72767d908b267f415e5d5b1c84cfc4d235b8fd61 /drivers/gpu/drm/nouveau/nouveau_connector.h | |
| parent | a5b4c77c92da629bf10926fe05cdf972e0e08f86 (diff) | |
| download | blackbird-op-linux-bfa563bae25131fc084c273b43a789819e302fe7.tar.gz blackbird-op-linux-bfa563bae25131fc084c273b43a789819e302fe7.zip | |
drm/nouveau/ttm: wait for bo fence to signal before unmapping vmas
commit 10dcab3e7f477bffee88d518aad57d06777cfdf4 upstream.
TTM was changed a while back to allow for pipelining of buffer moves, and
part of this was the removal of waiting for a BO to idle before calling
move(), placing the responsibility on the driver to do this if required.
That's all well and good, except, we make use of move_notify() to handle
mapping/unmapping from the GPU VMM as move() isn't called on all paths.
This commit adds a wait before unmapping from a VMM in move_notify(), to
prevent GPU page faults where a buffer is still being accessed.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_connector.h')
0 files changed, 0 insertions, 0 deletions
