-static unsigned int
-svga_is_texture_referenced( struct pipe_context *pipe,
- struct pipe_texture *texture,
- unsigned face, unsigned level)
-{
- struct svga_texture *tex = svga_texture(texture);
- struct svga_screen *ss = svga_screen(pipe->screen);
-
- /**
- * The screen does not cache texture writes.
- */
-
- if (!tex->handle || ss->sws->surface_is_flushed(ss->sws, tex->handle))
- return PIPE_UNREFERENCED;
-
- /**
- * sws->surface_is_flushed() does not distinguish between read references
- * and write references. So assume a reference is both.
- */
-
- return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
-}
-
-static unsigned int
-svga_is_buffer_referenced( struct pipe_context *pipe,
- struct pipe_buffer *buf)
-
-{
- struct svga_screen *ss = svga_screen(pipe->screen);
- struct svga_buffer *sbuf = svga_buffer(buf);
-
- /**
- * XXX: Check this.
- * The screen may cache buffer writes, but when we map, we map out
- * of those cached writes, so we don't need to set a
- * PIPE_REFERENCED_FOR_WRITE flag for cached buffers.
- */
-
- if (!sbuf->handle || ss->sws->surface_is_flushed(ss->sws, sbuf->handle))
- return PIPE_UNREFERENCED;
-
- /**
- * sws->surface_is_flushed() does not distinguish between read references
- * and write references. So assume a reference is both,
- * however, we make an exception for index- and vertex buffers, to avoid
- * a flush in st_bufferobj_get_subdata, during display list replay.
- */
-
- if (sbuf->base.usage & (PIPE_BUFFER_USAGE_VERTEX | PIPE_BUFFER_USAGE_INDEX))
- return PIPE_REFERENCED_FOR_READ;
-
- return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
-}