Merge remote-tracking branch 'lsk/v3.10/topic/gator' into linux-linaro-lsk

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / radeon / radeon_object.c

diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 1424ccde23774ebe7e9e2c0c2f5017b041b3f8e4..f83727915787a9949301db4f56f17996719423df 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -582,22 +582,30 @@ int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
        rbo = container_of(bo, struct radeon_bo, tbo);
        radeon_bo_check_tiling(rbo, 0, 0);
        rdev = rbo->rdev;
-       if (bo->mem.mem_type == TTM_PL_VRAM) {
-               size = bo->mem.num_pages << PAGE_SHIFT;
-               offset = bo->mem.start << PAGE_SHIFT;
-               if ((offset + size) > rdev->mc.visible_vram_size) {
-                       /* hurrah the memory is not visible ! */
-                       radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_VRAM);
-                       rbo->placement.lpfn = rdev->mc.visible_vram_size >> PAGE_SHIFT;
-                       r = ttm_bo_validate(bo, &rbo->placement, false, false);
-                       if (unlikely(r != 0))
-                               return r;
-                       offset = bo->mem.start << PAGE_SHIFT;
-                       /* this should not happen */
-                       if ((offset + size) > rdev->mc.visible_vram_size)
-                               return -EINVAL;
-               }
+       if (bo->mem.mem_type != TTM_PL_VRAM)
+               return 0;
+
+       size = bo->mem.num_pages << PAGE_SHIFT;
+       offset = bo->mem.start << PAGE_SHIFT;
+       if ((offset + size) <= rdev->mc.visible_vram_size)
+               return 0;
+
+       /* hurrah the memory is not visible ! */
+       radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_VRAM);
+       rbo->placement.lpfn = rdev->mc.visible_vram_size >> PAGE_SHIFT;
+       r = ttm_bo_validate(bo, &rbo->placement, false, false);
+       if (unlikely(r == -ENOMEM)) {
+               radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_GTT);
+               return ttm_bo_validate(bo, &rbo->placement, false, false);
+       } else if (unlikely(r != 0)) {
+               return r;
        }
+
+       offset = bo->mem.start << PAGE_SHIFT;
+       /* this should never happen */
+       if ((offset + size) > rdev->mc.visible_vram_size)
+               return -EINVAL;
+
        return 0;
 }