drm/i915: Put the mm in the parent address space

Every address space should support object allocation. It therefore makes
sense to have the allocator be part of the "superclass" which GGTT and
PPGTT will derive.

Since our maximum address space size is only 2GB we're not yet able to
avoid doing allocation/eviction; but we'd hope one day this becomes
almost irrelvant.

v2: Rebased

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index a2c909107a3e..7839b3a485aa 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -447,6 +447,7 @@ enum i915_cache_level {
 typedef uint32_t gen6_gtt_pte_t;
 
 struct i915_address_space {
+        struct drm_mm mm;
         struct drm_device *dev;
         unsigned long start;            /* Start offset always 0 for dri2 */
         size_t total;           /* size addr space maps (ex. 2GB for ggtt) */
@@ -831,8 +832,6 @@ struct intel_l3_parity {
 struct i915_gem_mm {
         /** Memory allocator for GTT stolen memory */
         struct drm_mm stolen;
-        /** Memory allocator for GTT */
-        struct drm_mm gtt_space;
         /** List of all objects in gtt_space. Used to restore gtt
          * mappings on resume */
         struct list_head bound_list;