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drm/i915: Fix cursor visibility check with negative coordinates 

When the cursor x coordinate is exactly -cursor_width, the cursor is
invisible. And obviously the same holds for the y coordinate and
cursor_height.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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 2013-09-04 18:25:30 +03:00 committed by Daniel Vetter
parent 5113bc9b23
commit efc9064e72
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/i915/intel_display.c
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@ -6937,7 +6937,7 @@ static void intel_crtc_update_cursor(struct drm_crtc *crtc,
base = 0;
if (x < 0) {
if (x + intel_crtc->cursor_width < 0)
if (x + intel_crtc->cursor_width <= 0)
base = 0;
pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
@ -6946,7 +6946,7 @@ static void intel_crtc_update_cursor(struct drm_crtc *crtc,
pos |= x << CURSOR_X_SHIFT;
if (y < 0) {
if (y + intel_crtc->cursor_height < 0)
if (y + intel_crtc->cursor_height <= 0)
base = 0;
pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;