freedreno: allow IB to different ringbuffer

Allow IB to different ringbuffer in addition to just different part of
same ringbuffer.  In particular, we need to add bo's to the parent (ie.
one passed to flush) bo table, since the bo table applies to all the
cmd buffers in submit ioctl.

Signed-off-by: Rob Clark <robclark@freedesktop.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/freedreno/freedreno_ringbuffer.c b/freedreno/freedreno_ringbuffer.c
index de666865..44437906 100644
--- a/freedreno/freedreno_ringbuffer.c
+++ b/freedreno/freedreno_ringbuffer.c
@@ -56,6 +56,16 @@ void fd_ringbuffer_del(struct fd_ringbuffer *ring)
 	ring->funcs->destroy(ring);
 }
 
+/* ringbuffers which are IB targets should set the toplevel rb (ie.
+ * the IB source) as it's parent before emitting reloc's, to ensure
+ * the bookkeeping works out properly.
+ */
+void fd_ringbuffer_set_parent(struct fd_ringbuffer *ring,
+		struct fd_ringbuffer *parent)
+{
+	ring->parent = parent;
+}
+
 void fd_ringbuffer_reset(struct fd_ringbuffer *ring)
 {
 	uint32_t *start = ring->start;