* We can't read out IPS on broadwell, assume the worst and
         * forcibly enable IPS on the first fastset.
         */
-       if (new_crtc_state->update_pipe &&
-           old_crtc_state->mode_flags & I915_MODE_FLAG_INHERITED)
+       if (new_crtc_state->update_pipe && old_crtc_state->inherited)
                return true;
 
        return !old_crtc_state->ips_enabled;
        bool ret = true;
        u32 bp_gamma = 0;
        bool fixup_inherited = fastset &&
-               (current_config->mode_flags & I915_MODE_FLAG_INHERITED) &&
-               !(pipe_config->mode_flags & I915_MODE_FLAG_INHERITED);
+               current_config->inherited && !pipe_config->inherited;
 
        if (fixup_inherited && !fastboot_enabled(dev_priv)) {
                drm_dbg_kms(&dev_priv->drm,
        int ret, i;
        bool any_ms = false;
 
-       /* Catch I915_MODE_FLAG_INHERITED */
        for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
                                            new_crtc_state, i) {
-               if (new_crtc_state->mode_flags != old_crtc_state->mode_flags)
+               if (new_crtc_state->inherited != old_crtc_state->inherited)
                        new_crtc_state->uapi.mode_changed = true;
        }
 
         * of enabling them on the CRTC's first fastset.
         */
        if (new_crtc_state->update_pipe && !modeset &&
-           old_crtc_state->mode_flags & I915_MODE_FLAG_INHERITED)
+           old_crtc_state->inherited)
                intel_crtc_arm_fifo_underrun(crtc, new_crtc_state);
 }
 
                         * Preserve the inherited flag to avoid
                         * taking the full modeset path.
                         */
-                       crtc_state->mode_flags |= I915_MODE_FLAG_INHERITED;
+                       crtc_state->inherited = true;
                }
        }
 
                         * happen only for the first real commit from userspace.
                         * So preserve the inherited flag for the time being.
                         */
-                       crtc_state->mode_flags |= I915_MODE_FLAG_INHERITED;
+                       crtc_state->inherited = true;
 
                        ret = drm_atomic_add_affected_planes(state, &crtc->base);
                        if (ret)
                         * set a flag to indicate that a full recalculation is
                         * needed on the next commit.
                         */
-                       crtc_state->mode_flags |= I915_MODE_FLAG_INHERITED;
+                       crtc_state->inherited = true;
 
                        intel_crtc_compute_pixel_rate(crtc_state);
 
 
 };
 
 /* {crtc,crtc_state}->mode_flags */
-#define I915_MODE_FLAG_INHERITED (1<<0)
 /* Flag to get scanline using frame time stamps */
 #define I915_MODE_FLAG_GET_SCANLINE_FROM_TIMESTAMP (1<<1)
 /* Flag to use the scanline counter instead of the pixel counter */
        bool update_wm_pre, update_wm_post; /* watermarks are updated */
        bool fifo_changed; /* FIFO split is changed */
        bool preload_luts;
+       bool inherited; /* state inherited from BIOS? */
 
        /* Pipe source size (ie. panel fitter input size)
         * All planes will be positioned inside this space,