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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2012-04-17 17:54:58 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2012-04-17 17:56:05 +0100 |
| commit | b817200371bfe16f44b879a793cf4a75ad17bc5c (patch) | |
| tree | ec4001dd07530b08e76b7bb12ea5d70c276b217f /src/intel_video.c | |
| parent | af4a6e8cb52ace594934446e6d8a7aaa1945a9b0 (diff) | |
Don't issue a scanline wait while VT switched
Be paranoid and check that we own the VT before emitting a scanline
wait. If we attempt to wait on a fb/pipe that we do not own, we may
issue an illegal command and cause a lockup.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'src/intel_video.c')
| -rw-r--r-- | src/intel_video.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/intel_video.c b/src/intel_video.c index 25f64836..0834bb23 100644 --- a/src/intel_video.c +++ b/src/intel_video.c @@ -1285,7 +1285,7 @@ intel_wait_for_scanline(ScrnInfoPtr scrn, PixmapPtr pixmap, int y1, y2; pipe = -1; - if (pixmap_is_scanout(pixmap)) + if (scrn->vtSema && pixmap_is_scanout(pixmap)) pipe = intel_crtc_to_pipe(crtc); if (pipe < 0) return; |