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| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2008-07-01 12:32:52 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-02 18:42:23 -0700 |
| commit | 3d25802e3ba7c82457b5c12bbfeefe391d8a333e (patch) | |
| tree | 9ea3be5286449fba068241804ea8d86dbc171f49 /drivers | |
| parent | 83680cdbcecd1fd284ad4df060d12bf214bb63a8 (diff) | |
| download | linux-3d25802e3ba7c82457b5c12bbfeefe391d8a333e.tar.gz linux-3d25802e3ba7c82457b5c12bbfeefe391d8a333e.tar.bz2 linux-3d25802e3ba7c82457b5c12bbfeefe391d8a333e.zip | |
DRM/i915: only use tiled blits on 965+
When scheduled swaps occur, we need to blit between front & back
buffers. If the buffers are tiled, we need to set the appropriate
XY_SRC_COPY tile bit, but only on 965 chips, since it will cause
corruption on pre-965 (e.g. 945).
Bug reported by and fix tested by Tomas Janousek <tomi@nomi.cz>.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Dave Airlie <airlied@linux.ie>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/char/drm/i915_irq.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/char/drm/i915_irq.c b/drivers/char/drm/i915_irq.c index f7f16e7a8bf3..df036118b8b1 100644 --- a/drivers/char/drm/i915_irq.c +++ b/drivers/char/drm/i915_irq.c @@ -62,11 +62,11 @@ static void i915_vblank_tasklet(struct drm_device *dev) u32 ropcpp = (0xcc << 16) | ((cpp - 1) << 24); RING_LOCALS; - if (sarea_priv->front_tiled) { + if (IS_I965G(dev) && sarea_priv->front_tiled) { cmd |= XY_SRC_COPY_BLT_DST_TILED; dst_pitch >>= 2; } - if (sarea_priv->back_tiled) { + if (IS_I965G(dev) && sarea_priv->back_tiled) { cmd |= XY_SRC_COPY_BLT_SRC_TILED; src_pitch >>= 2; } |