2 files changed, 40 insertions, 2 deletions

diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index 0f4a366f6fa6..9b991f91d81b 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -89,6 +89,29 @@ static inline bool drm_mm_initialized(struct drm_mm *mm)
 {
         return mm->hole_stack.next;
 }
+
+static inline unsigned long __drm_mm_hole_node_start(struct drm_mm_node *hole_node)
+{
+        return hole_node->start + hole_node->size;
+}
+
+static inline unsigned long drm_mm_hole_node_start(struct drm_mm_node *hole_node)
+{
+        BUG_ON(!hole_node->hole_follows);
+        return __drm_mm_hole_node_start(hole_node);
+}
+
+static inline unsigned long __drm_mm_hole_node_end(struct drm_mm_node *hole_node)
+{
+        return list_entry(hole_node->node_list.next,
+                          struct drm_mm_node, node_list)->start;
+}
+
+static inline unsigned long drm_mm_hole_node_end(struct drm_mm_node *hole_node)
+{
+        return __drm_mm_hole_node_end(hole_node);
+}
+
 #define drm_mm_for_each_node(entry, mm) list_for_each_entry(entry, \
                                                 &(mm)->head_node.node_list, \
                                                 node_list)
@@ -99,9 +122,26 @@ static inline bool drm_mm_initialized(struct drm_mm *mm)
              entry != NULL; entry = next, \
                 next = entry ? list_entry(entry->node_list.next, \
                         struct drm_mm_node, node_list) : NULL) \
+
+/* Note that we need to unroll list_for_each_entry in order to inline
+ * setting hole_start and hole_end on each iteration and keep the
+ * macro sane.
+ */
+#define drm_mm_for_each_hole(entry, mm, hole_start, hole_end) \
+        for (entry = list_entry((mm)->hole_stack.next, struct drm_mm_node, hole_stack); \
+             &entry->hole_stack != &(mm)->hole_stack ? \
+             hole_start = drm_mm_hole_node_start(entry), \
+             hole_end = drm_mm_hole_node_end(entry), \
+             1 : 0; \
+             entry = list_entry(entry->hole_stack.next, struct drm_mm_node, hole_stack))
+
 /*
  * Basic range manager support (drm_mm.c)
  */
+extern struct drm_mm_node *drm_mm_create_block(struct drm_mm *mm,
+                                               unsigned long start,
+                                               unsigned long size,
+                                               bool atomic);
 extern struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *node,
                                                     unsigned long size,
                                                     unsigned alignment,
diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h
index 6eb76a1f11ab..3e3a166a2690 100644
--- a/include/drm/intel-gtt.h
+++ b/include/drm/intel-gtt.h
@@ -18,8 +18,6 @@ struct intel_gtt {
         /* 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 */
         phys_addr_t gma_bus_addr;
 } *intel_gtt_get(void);