From aa136d9d72c2f9c4925ff86eebc86748fa069beb Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 18 Aug 2016 17:17:03 +0100 Subject: [PATCH] drm/i915: Convert partial ggtt vma to full ggtt if it spans the entire object If we want to create a partial vma from a chunk that is the same size as the object, create a normal ggtt vma instead. The benefit is that it will match future requests for the normal ggtt. Signed-off-by: Chris Wilson Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/20160818161718.27187-24-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_gem.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 39236b489de8..e4c18c71576f 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1755,6 +1755,12 @@ int i915_gem_fault(struct vm_area_struct *area, struct vm_fault *vmf) (area->vm_end - area->vm_start) / PAGE_SIZE - view.params.partial.offset); + /* If the partial covers the entire object, just create a + * normal VMA. + */ + if (chunk_size >= obj->base.size >> PAGE_SHIFT) + view.type = I915_GGTT_VIEW_NORMAL; + vma = i915_gem_object_ggtt_pin(obj, &view, 0, 0, PIN_MAPPABLE); } if (IS_ERR(vma)) {