return &vfb->base;
}
+
+
+/**
+ * vmw_kms_atomic_check_modeset- validate state object for modeset changes
+ *
+ * @dev: DRM device
+ * @state: the driver state object
+ *
+ * This is a simple wrapper around drm_atomic_helper_check_modeset() for
+ * us to assign a value to mode->crtc_clock so that
+ * drm_calc_timestamping_constants() won't throw an error message
+ *
+ * RETURNS
+ * Zero for success or -errno
+ */
+int
+vmw_kms_atomic_check_modeset(struct drm_device *dev,
+ struct drm_atomic_state *state)
+{
+ struct drm_crtc_state *crtc_state;
+ struct drm_crtc *crtc;
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ int i;
+
+
+ for_each_crtc_in_state(state, crtc, crtc_state, i) {
+ unsigned long requested_bb_mem = 0;
+
+ if (dev_priv->active_display_unit == vmw_du_screen_target) {
+ if (crtc->primary->fb) {
+ int cpp = crtc->primary->fb->pitches[0] /
+ crtc->primary->fb->width;
+
+ requested_bb_mem += crtc->mode.hdisplay * cpp *
+ crtc->mode.vdisplay;
+ }
+
+ if (requested_bb_mem > dev_priv->prim_bb_mem)
+ return -EINVAL;
+ }
+ }
+
+ return drm_atomic_helper_check(dev, state);
+}
+
+
static const struct drm_mode_config_funcs vmw_kms_funcs = {
.fb_create = vmw_kms_fb_create,
+ .atomic_check = vmw_kms_atomic_check_modeset,
+ .atomic_commit = drm_atomic_helper_commit,
};
static int vmw_kms_generic_present(struct vmw_private *dev_priv,