-/*
- * Super-cheezy way to synchronization between mesa and ddx.. the
- * SET_ACTIVE ioctl gives us a way to stash a 32b # w/ a GEM bo, and
- * GET_BUFINFO gives us a way to retrieve it. We use this to stash
- * the timestamp of the last ISSUEIBCMDS on the buffer.
- *
- * To avoid an obscene amount of syscalls, we:
- * 1) Only set the timestamp for buffers w/ an flink name, ie.
- * only buffers shared across processes. This is enough to
- * catch the DRI2 buffers.
- * 2) Only set the timestamp for buffers submitted to the 3d ring
- * and only check the timestamps on buffers submitted to the
- * 2d ring. This should be enough to handle synchronizing of
- * presentation blit. We could do synchronization in the other
- * direction too, but that would be problematic if we are using
- * the 3d ring from DDX, since client side wouldn't know this.
- *
- * The waiting on timestamp happens before flush, and setting of
- * timestamp happens after flush. It is transparent to the user
- * of libdrm_freedreno as all the tracking of buffers happens via
- * _emit_reloc()..
- */
-
-void fb_bo_set_timestamp(struct fd_bo *bo, uint32_t timestamp)