1 files changed, 27 insertions, 5 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 122774742bd5..6a8617bac142 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -192,7 +192,7 @@ int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr)
 	}
 	for (i = 0; i < bo->placement.num_placement; i++)
 		bo->placements[i] |= TTM_PL_FLAG_NO_EVICT;
-	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
+	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false, false);
 	if (likely(r == 0)) {
 		bo->pin_count = 1;
 		if (gpu_addr != NULL)
@@ -216,7 +216,7 @@ int radeon_bo_unpin(struct radeon_bo *bo)
 		return 0;
 	for (i = 0; i < bo->placement.num_placement; i++)
 		bo->placements[i] &= ~TTM_PL_FLAG_NO_EVICT;
-	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
+	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false, false);
 	if (unlikely(r != 0))
 		dev_err(bo->rdev->dev, "%p validate failed for unpin\n", bo);
 	return r;
@@ -331,7 +331,7 @@ int radeon_bo_list_validate(struct list_head *head)
 								lobj->rdomain);
 			}
 			r = ttm_bo_validate(&bo->tbo, &bo->placement,
-						true, false);
+						true, false, false);
 			if (unlikely(r))
 				return r;
 		}
@@ -499,11 +499,33 @@ void radeon_bo_move_notify(struct ttm_buffer_object *bo,
 	radeon_bo_check_tiling(rbo, 0, 1);
 }
 
-void radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
+int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
 {
+	struct radeon_device *rdev;
 	struct radeon_bo *rbo;
+	unsigned long offset, size;
+	int r;
+
 	if (!radeon_ttm_bo_is_radeon_bo(bo))
-		return;
+		return 0;
 	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.mm_node->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, true, false);
+			if (unlikely(r != 0))
+				return r;
+			offset = bo->mem.mm_node->start << PAGE_SHIFT;
+			/* this should not happen */
+			if ((offset + size) > rdev->mc.visible_vram_size)
+				return -EINVAL;
+		}
+	}
+	return 0;
 }