drm/nouveau/kms/nv50-: guard against enabling cursor on disabled heads
authorBen Skeggs <bskeggs@redhat.com>
Tue, 28 Jul 2015 07:20:57 +0000 (17:20 +1000)
committerBen Skeggs <bskeggs@redhat.com>
Tue, 28 Jul 2015 07:22:13 +0000 (17:22 +1000)
Userspace has started doing this, which upsets the display class hw
error checking in various unpleasant ways.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
drivers/gpu/drm/nouveau/nv50_display.c

index 7da7958556a3abe68f94eac820c62aa8b41a923a..981342d142ff61b6c6292fc14399eb7a43ad08a6 100644 (file)
@@ -979,7 +979,7 @@ nv50_crtc_cursor_show_hide(struct nouveau_crtc *nv_crtc, bool show, bool update)
 {
        struct nv50_mast *mast = nv50_mast(nv_crtc->base.dev);
 
-       if (show && nv_crtc->cursor.nvbo)
+       if (show && nv_crtc->cursor.nvbo && nv_crtc->base.enabled)
                nv50_crtc_cursor_show(nv_crtc);
        else
                nv50_crtc_cursor_hide(nv_crtc);