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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
This commit is contained in:
Chris Wilson 2016-08-15 10:48:48 +01:00
parent 247177ddd5
commit 81a8aa4a6c
2 changed files with 16 additions and 0 deletions
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11
drivers/gpu/drm/i915/i915_gem_gtt.c
View File

@ -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)

5
drivers/gpu/drm/i915/i915_gem_gtt.h
View File

@ -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;