drm/i915: Create a VMA for an object

In many places, we wish to store the VMA in preference to the object
itself and so being able to create the persistent VMA is useful.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471254551-25805-9-git-send-email-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 9c178b0c40b531775be3e73ac96241758d201773..1bec50bd651b7c102bc76eaae3fc15f9b2263fec 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -3386,6 +3386,17 @@ __i915_gem_vma_create(struct drm_i915_gem_object *obj,
        return vma;
 }
 
+struct i915_vma *
+i915_vma_create(struct drm_i915_gem_object *obj,
+               struct i915_address_space *vm,
+               const struct i915_ggtt_view *view)
+{
+       GEM_BUG_ON(view && !i915_is_ggtt(vm));
+       GEM_BUG_ON(view ? i915_gem_obj_to_ggtt_view(obj, view) : i915_gem_obj_to_vma(obj, vm));
+
+       return __i915_gem_vma_create(obj, vm, view ?: &i915_ggtt_view_normal);
+}
+
 struct i915_vma *
 i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
                                  struct i915_address_space *vm)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index b580e8a013ce6a2695b9805062d8396c9eade7bc..f2769e01cc8ce5bf23b5c33efc33e8d36e856689 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -228,6 +228,11 @@ struct i915_vma {
        struct drm_i915_gem_exec_object2 *exec_entry;
 };
 
+struct i915_vma *
+i915_vma_create(struct drm_i915_gem_object *obj,
+               struct i915_address_space *vm,
+               const struct i915_ggtt_view *view);
+
 static inline bool i915_vma_is_ggtt(const struct i915_vma *vma)
 {
        return vma->flags & I915_VMA_GGTT;