tree b28ec025f4a9e0d582c7cf81ba044b05b0eb1412
parent e4e9222d4b5e041c3b5a54ee21d6c62e7cc56609
author Chris Wilson <chris@chris-wilson.co.uk> 1372177605 +0100
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1372670086 +0200

drm/i915: Detect invalid scanout pitches

Report back the user error of attempting to setup a CRTC with an invalid
framebuffer pitch. This is trickier than it should be as on gen4, there
is a restriction that tiled surfaces must have a stride less than 16k -
which is less than the largest supported CRTC size.

v2: Fix the limits for gen3
v3: Move check into intel_framebuffer_init() and fix VLV limits. (vsyrjala)
v4: Use idiomatic '>=' for generation checks

References: https://bugs.freedesktop.org/show_bug.cgi?id=65099
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>