Hi,

On 16/03/16 17:07, Matthew Auld wrote:
No functional change, just makes the code easier to follow.

Signed-off-by: Matthew Auld <matthew.a...@intel.com>
---
  drivers/gpu/drm/i915/i915_gem.c | 41 +++++++++++------------------------------
  1 file changed, 11 insertions(+), 30 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index b854af2..5a8d69d 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3470,46 +3470,27 @@ i915_gem_object_bind_to_vm(struct drm_i915_gem_object 
*obj,
        u32 fence_alignment, unfenced_alignment;
        u32 search_flag, alloc_flag;
        u64 start, end;
-       u64 size, fence_size;
+       u64 size, obj_size, fence_size;
        struct i915_vma *vma;
        int ret;

        if (i915_is_ggtt(vm)) {
-               u32 view_size;
-
                if (WARN_ON(!ggtt_view))
                        return ERR_PTR(-EINVAL);

-               view_size = i915_ggtt_view_size(obj, ggtt_view);
-
-               fence_size = i915_gem_get_gtt_size(dev,
-                                                  view_size,
-                                                  obj->tiling_mode);
-               fence_alignment = i915_gem_get_gtt_alignment(dev,
-                                                            view_size,
-                                                            obj->tiling_mode,
-                                                            true);
-               unfenced_alignment = i915_gem_get_gtt_alignment(dev,
-                                                               view_size,
-                                                               
obj->tiling_mode,
-                                                               false);
-               size = flags & PIN_MAPPABLE ? fence_size : view_size;
+               obj_size = i915_ggtt_view_size(obj, ggtt_view);
        } else {
-               fence_size = i915_gem_get_gtt_size(dev,
-                                                  obj->base.size,
-                                                  obj->tiling_mode);
-               fence_alignment = i915_gem_get_gtt_alignment(dev,
-                                                            obj->base.size,
-                                                            obj->tiling_mode,
-                                                            true);
-               unfenced_alignment =
-                       i915_gem_get_gtt_alignment(dev,
-                                                  obj->base.size,
-                                                  obj->tiling_mode,
-                                                  false);
-               size = flags & PIN_MAPPABLE ? fence_size : obj->base.size;
+               obj_size = obj->base.size;
        }

PIN_MAPPABLE mandates PIN_GLOBAL, and PIN_GLOBAL mandates GGTT (see i915_gem_object_do_pin), so I think the cleanup should be just not to do any of the fence business on if !ggtt branch.

if (i915_is_ggtt(vm)) {
        ... existing code ...
} else {
        size = obj->base.size;
}

Check for NULL ggtt_view is also done on the higher level so perhaps that can go as well to consolidate the checks at one place.

+       fence_size = i915_gem_get_gtt_size(dev, obj_size, obj->tiling_mode);
+       fence_alignment = i915_gem_get_gtt_alignment(dev, obj_size,
+                                                    obj->tiling_mode, true);
+       unfenced_alignment = i915_gem_get_gtt_alignment(dev, obj_size,
+                                                       obj->tiling_mode,
+                                                       false);
+       size = flags & PIN_MAPPABLE ? fence_size : obj_size;
+
        start = flags & PIN_OFFSET_BIAS ? flags & PIN_OFFSET_MASK : 0;
        end = vm->total;
        if (flags & PIN_MAPPABLE)


Regards,

Tvrtko
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