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drm/i915: Reject fence stride=0 on gen4+

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Our checks for an invalid fence stride forgot to guard against
zero stride on gen4+. Fix it.

v2: Avoid duplicated code (danvet)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2013-04-09 20:09:13 +03:00 committed by Daniel Vetter
parent a6f429a5a2
commit fe48d8de34
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/i915/i915_gem_tiling.c
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@ -235,6 +235,9 @@ i915_tiling_ok(struct drm_device *dev, int stride, int size, int tiling_mode)
}
}
if (stride < tile_width)
return false;
/* 965+ just needs multiples of tile width */
if (INTEL_INFO(dev)->gen >= 4) {
if (stride & (tile_width - 1))
@ -243,9 +246,6 @@ i915_tiling_ok(struct drm_device *dev, int stride, int size, int tiling_mode)
}
/* Pre-965 needs power of two tile widths */
if (stride < tile_width)
return false;
if (stride & (stride - 1))
return false;