drm/radeon: Use mode h/vdisplay fields to hide out of bounds HW cursor

commit d74c67dd7800fc7aae381f272875c337f268806c upstream.

The crtc_h/vdisplay fields may not match the CRTC viewport dimensions
with special modes such as interlaced ones.

Fixes the HW cursor disappearing in the bottom half of the screen with
interlaced modes.

Fixes: 6b16cf7785a4 ("drm/radeon: Hide the HW cursor while it's out of bounds")
Reported-by: Ashutosh Kumar <ashutosh.kumar@amd.com>
Tested-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c
index fb16070b266e3f2de51243ba478f57d8fd956420..4a4f9533c53b888ab10fb0f4839fc4a5df852bd8 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_cursor.c
+++ b/drivers/gpu/drm/radeon/radeon_cursor.c
@@ -205,8 +205,8 @@ static int radeon_cursor_move_locked(struct drm_crtc *crtc, int x, int y)
        }
 
        if (x <= (crtc->x - w) || y <= (crtc->y - radeon_crtc->cursor_height) ||
-           x >= (crtc->x + crtc->mode.crtc_hdisplay) ||
-           y >= (crtc->y + crtc->mode.crtc_vdisplay))
+           x >= (crtc->x + crtc->mode.hdisplay) ||
+           y >= (crtc->y + crtc->mode.vdisplay))
                goto out_of_bounds;
 
        x += xorigin;