drm/i915: Fix cursor visibility checks also for the right/bottom screen edges

First of all we should not be looking at fb->{width,height} as those do
not tell us what the actual pipe size is. Second of all we need to use
>= for the comparison.

So fix the comparison, and make use of the new pipe_src_{w,h} to
determine the real pipe source dimensions.

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>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f5e80b1..c084956 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6921,19 +6921,16 @@ static void intel_crtc_update_cursor(struct drm_crtc *crtc,
        int pipe = intel_crtc->pipe;
        int x = intel_crtc->cursor_x;
        int y = intel_crtc->cursor_y;
-       u32 base, pos;
+       u32 base = 0, pos = 0;
        bool visible;
 
-       pos = 0;
-
-       if (on && crtc->enabled && crtc->fb) {
+       if (on)
                base = intel_crtc->cursor_addr;
-               if (x > (int) crtc->fb->width)
-                       base = 0;
 
-               if (y > (int) crtc->fb->height)
-                       base = 0;
-       } else
+       if (x >= intel_crtc->config.pipe_src_w)
+               base = 0;
+
+       if (y >= intel_crtc->config.pipe_src_h)
                base = 0;
 
        if (x < 0) {