nouveau: Unreference state/buffer objects on context/screen destruction.

- unreference state objects so that buffer objects are unreferenced and
eventually destroyed
- free channel at screen's destruction

Based on Krzysztof Smiechowicz's patch.

3 files changed, 21 insertions, 0 deletions

diff --git a/src/gallium/drivers/nv30/nv30_context.c b/src/gallium/drivers/nv30/nv30_context.c
index 46a821a48b1..38b39159f19 100644
--- a/src/gallium/drivers/nv30/nv30_context.c
+++ b/src/gallium/drivers/nv30/nv30_context.c
@@ -25,6 +25,12 @@ static void
 nv30_destroy(struct pipe_context *pipe)
 {
 	struct nv30_context *nv30 = nv30_context(pipe);
+	unsigned i;
+
+	for (i = 0; i < NV30_STATE_MAX; i++) {
+		if (nv30->state.hw[i])
+			so_ref(NULL, &nv30->state.hw[i]);
+	}
 
 	if (nv30->draw)
 		draw_destroy(nv30->draw);
diff --git a/src/gallium/drivers/nv30/nv30_fragprog.c b/src/gallium/drivers/nv30/nv30_fragprog.c
index dc4e583ce9d..d1ff18e2dfb 100644
--- a/src/gallium/drivers/nv30/nv30_fragprog.c
+++ b/src/gallium/drivers/nv30/nv30_fragprog.c
@@ -886,6 +886,12 @@ void
 nv30_fragprog_destroy(struct nv30_context *nv30,
 		      struct nv30_fragment_program *fp)
 {
+	if (fp->buffer)
+		pipe_buffer_reference(&fp->buffer, NULL);
+
+	if (fp->so)
+		so_ref(NULL, &fp->so);
+
 	if (fp->insn_len)
 		FREE(fp->insn);
 }
diff --git a/src/gallium/drivers/nv30/nv30_screen.c b/src/gallium/drivers/nv30/nv30_screen.c
index 7cd36902eb4..760467f7367 100644
--- a/src/gallium/drivers/nv30/nv30_screen.c
+++ b/src/gallium/drivers/nv30/nv30_screen.c
@@ -156,6 +156,12 @@ static void
 nv30_screen_destroy(struct pipe_screen *pscreen)
 {
 	struct nv30_screen *screen = nv30_screen(pscreen);
+	unsigned i;
+
+	for (i = 0; i < NV30_STATE_MAX; i++) {
+		if (screen->state[i])
+			so_ref(NULL, &screen->state[i]);
+	}
 
 	nouveau_resource_free(&screen->vp_exec_heap);
 	nouveau_resource_free(&screen->vp_data_heap);
@@ -163,6 +169,9 @@ nv30_screen_destroy(struct pipe_screen *pscreen)
 	nouveau_notifier_free(&screen->query);
 	nouveau_notifier_free(&screen->sync);
 	nouveau_grobj_free(&screen->rankine);
+	nv04_surface_2d_takedown(&screen->eng2d);
+
+	nouveau_screen_fini(&screen->base);
 
 	FREE(pscreen);
 }