#ifndef _DRM_INTEL_GTT_H
#define _DRM_INTEL_GTT_H
-const struct intel_gtt {
+struct intel_gtt {
/* Size of memory reserved for graphics by the BIOS */
unsigned int stolen_size;
/* Total number of gtt entries. */
unsigned int do_idle_maps : 1;
/* Share the scratch page dma with ppgtts. */
dma_addr_t scratch_page_dma;
+ struct page *scratch_page;
/* for ppgtt PDE access */
u32 __iomem *gtt;
/* needed for ioremap in drm/i915 */