-/**
- * i915_gem_get_ggtt_size - return required global GTT size for an object
- * @dev_priv: i915 device
- * @size: object size
- * @tiling_mode: tiling mode
- *
- * Return the required global GTT size for an object, taking into account
- * potential fence register mapping.
- */
-u64 i915_gem_get_ggtt_size(struct drm_i915_private *dev_priv,
- u64 size, int tiling_mode)
-{
- u64 ggtt_size;
-
- GEM_BUG_ON(size == 0);
-
- if (INTEL_GEN(dev_priv) >= 4 ||
- tiling_mode == I915_TILING_NONE)
- return size;
-
- /* Previous chips need a power-of-two fence region when tiling */
- if (IS_GEN3(dev_priv))
- ggtt_size = 1024*1024;
- else
- ggtt_size = 512*1024;
-
- while (ggtt_size < size)
- ggtt_size <<= 1;
-
- return ggtt_size;
-}
-
-/**
- * i915_gem_get_ggtt_alignment - return required global GTT alignment
- * @dev_priv: i915 device
- * @size: object size
- * @tiling_mode: tiling mode
- * @fenced: is fenced alignment required or not
- *
- * Return the required global GTT alignment for an object, taking into account
- * potential fence register mapping.
- */
-u64 i915_gem_get_ggtt_alignment(struct drm_i915_private *dev_priv, u64 size,
- int tiling_mode, bool fenced)
-{
- GEM_BUG_ON(size == 0);
-
- /*
- * Minimum alignment is 4k (GTT page size), but might be greater
- * if a fence register is needed for the object.
- */
- if (INTEL_GEN(dev_priv) >= 4 || (!fenced && IS_G33(dev_priv)) ||
- tiling_mode == I915_TILING_NONE)
- return 4096;
-
- /*
- * Previous chips need to be aligned to the size of the smallest
- * fence register that can contain the object.
- */
- return i915_gem_get_ggtt_size(dev_priv, size, tiling_mode);
-}
-