Merge commit 'v2.6.33-rc6' into secretlab/next-spi

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index 2e92da567403..d69caf92ffe7 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -490,10 +490,29 @@ static int vmw_validate_single_buffer(struct vmw_private *dev_priv,
         if (vmw_dmabuf_gmr(bo) != SVGA_GMR_NULL)
                 return 0;
 
+        /**
+         * Put BO in VRAM, only if there is space.
+         */
+
+        ret = ttm_bo_validate(bo, &vmw_vram_sys_placement, true, false);
+        if (unlikely(ret == -ERESTARTSYS))
+                return ret;
+
+        /**
+         * Otherwise, set it up as GMR.
+         */
+
+        if (vmw_dmabuf_gmr(bo) != SVGA_GMR_NULL)
+                return 0;
+
         ret = vmw_gmr_bind(dev_priv, bo);
         if (likely(ret == 0 || ret == -ERESTARTSYS))
                 return ret;
 
+        /**
+         * If that failed, try VRAM again, this time evicting
+         * previous contents.
+         */
 
         ret = ttm_bo_validate(bo, &vmw_vram_placement, true, false);
         return ret;