vmwgfx: minor dmabuf utilities cleanup

Add / fix some function comments.
Don't move out an fbdev framebuffer when unused. Just unpin.
Only have a single function that computes a SVGAGuestPtr from the buffer's
current placement, and make it more versatile by accepting a
struct ttm_buffer_object

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
index 191f1b2a2a26..070797b7b03a 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
@@ -613,8 +613,7 @@ int vmw_fb_off(struct vmw_private *vmw_priv)
         par->bo_ptr = NULL;
         ttm_bo_kunmap(&par->map);
 
-        /* move this to system instead of just unpinning it */
-        vmw_dmabuf_to_system(vmw_priv, par->vmw_bo, false);
+        vmw_dmabuf_unpin(vmw_priv, par->vmw_bo, false);
 
         return 0;
 }